Light-emitting control circuit, light-emitting sign and automobile

Abstract

The embodiment of the utility model provides a light-emitting control circuit, a light-emitting sign and an automobile, and belongs to the technical field of circuit control. The light-emitting control circuit comprises a control module, a lamp group module, a lamp group driving module and a temperature detection module, the control module is electrically connected with the lamp set driving module and the temperature detection module. The lamp set driving module is electrically connected with the lamp set module. The temperature detection module is used for detecting the temperature of the lamp set module, the control module is used for controlling the on-off state of the lamp set driving module according to the temperature, and the lamp set driving module controls the luminous intensity of the lamp set module through the on-off state. The embodiment of the utility model can provide a stable light-emitting control circuit.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of light-emitting control circuit, and particularly relates to a light-emitting control circuit, a light-emitting sign and a car. BACKGROUND

[0002] With the popularization of new energy vehicles, the signs in front of and behind the car are gradually changed from traditional metal signs to light-emitting signs. At present, the light-emitting control circuit in the light-emitting sign of the car body is not stable enough, which affects the stability of the light-emitting sign brightness.

[0003] Therefore, how to provide a stable light-emitting control circuit has become a technical problem to be solved. CONTENT OF THE INVENTION

[0004] The main purpose of the embodiment of the present application is to provide a light-emitting control circuit, a light-emitting sign and a car.

[0005] To achieve the above-mentioned purpose, the first aspect of the embodiment of the present application provides a light-emitting control circuit, which comprises a control module, a lamp group module, a lamp group driving module and a temperature detection module.

[0006] The control module is electrically connected with the lamp group driving module and the temperature detection module respectively, and the lamp group driving module is electrically connected with the lamp group module.

[0007] The temperature detection module is used for detecting the temperature of the lamp group module, the control module is used for controlling the switching state of the lamp group driving module according to the temperature, and the lamp group driving module controls the light-emitting intensity of the lamp group module through the switching state.

[0008] In some embodiments, the lamp group module comprises a first lamp group submodule and a second lamp group submodule, and the lamp group driving module comprises a first lamp group driving submodule and a second lamp group driving submodule.

[0009] The control module is electrically connected with the first lamp group driving submodule and the second lamp group driving submodule, the first lamp group driving submodule is electrically connected with the first lamp group submodule, and the second lamp group driving submodule is electrically connected with the second lamp group submodule.

[0010] The temperature comprises a first sub-temperature of the first lamp group submodule and a second sub-temperature of the second lamp group submodule, the switching state of the lamp group driving module comprises a first switching sub-state of the first lamp group driving submodule and a second switching sub-state of the second lamp group driving submodule, and the light-emitting intensity comprises a first sub-light-emitting intensity of the first lamp group submodule and a second sub-light-emitting intensity of the second lamp group submodule.

[0011] The control module is configured to control the first switch sub-state according to the first sub-temperature and control the second switch sub-state according to the second sub-temperature, the first lamp group driving sub-module is configured to control the first sub-light emitting intensity according to the first switch sub-state, and the second lamp group driving sub-module is configured to control the second sub-light emitting intensity according to the second switch sub-state.

[0012] In some embodiments, the first lamp group sub-module comprises a first light emitting unit and a second light emitting unit, and the first lamp group driving sub-module comprises a switch unit.

[0013] The first light emitting unit and the second light emitting unit are connected in parallel, and the switch unit is connected with the first light emitting unit and the second light emitting unit respectively.

[0014] The first sub-light emitting intensity comprises a first target sub-intensity and a second target sub-intensity, and the switch unit is configured to control the first target sub-intensity of the first light emitting unit and the second target sub-intensity of the second light emitting unit according to the first switch sub-state.

[0015] In some embodiments, the first light emitting unit comprises at least one first light emitting diode, and the second light emitting unit comprises at least one second light emitting diode.

[0016] The first light emitting diode and the second light emitting diode are connected in parallel, and the switch unit is connected with the first light emitting diode and the second light emitting diode respectively.

[0017] In some embodiments, the control module is configured to determine the first switch sub-state as an open state when the first sub-temperature is greater than or equal to a preset temperature threshold.

[0018] The control module is further configured to determine the first switch sub-state as a closed state when the first sub-temperature is less than the preset temperature threshold.

[0019] In some embodiments, the light emitting control circuit further comprises a communication transceiver module and a voltage stabilizing power supply module.

[0020] The voltage stabilizing power supply module is electrically connected with the control module, the communication transceiver module and the lamp group module respectively, and the communication transceiver module is electrically connected with the control module.

[0021] The voltage stabilizing power supply module is configured to supply power to the control module, the lamp group module and the communication transceiver module respectively, the communication transceiver module is configured to send a control instruction to the control module, and the control module is configured to control the switch state of the lamp group driving module according to the control instruction.

[0022] The communication transceiver module is further configured to receive the lamp group performance data of the lamp group module fed back by the control module.

[0023] In some embodiments, the light emitting control circuit further comprises an overcurrent protection module.

[0024] The overcurrent protection module is connected with the control module and the voltage stabilizing power supply module respectively, and is configured to detect the current output by the voltage stabilizing power supply module and perform current protection on the control module according to the current.

[0025] To achieve the above object, a second aspect of the embodiment of the present application provides a light emitting sign, comprising: a shell and a circuit board, the circuit board is arranged inside the shell, the shell comprises a cover body and a base, and the circuit board has the light emitting control circuit of the first aspect.

[0026] The cover body and the circuit board are connected with the base respectively, and the cover body has a light transmission area for transmitting the light emitted by the light emitting control circuit.

[0027] In some embodiments, the cover body further has a non-light transmission area, and the non-light transmission area is provided with a light reflection layer for reflecting the light emitted by the light emitting control circuit.

[0028] To achieve the above object, a third aspect of the embodiment of the present application provides an automobile, comprising the light emitting sign of the second aspect.

[0029] The light emitting control circuit, the light emitting sign and the automobile provided by the present application detect the temperature of the lamp group module through the temperature detection module, the control module controls the switching state of the lamp group driving module according to the temperature, and the lamp group driving module controls the light emitting intensity of the lamp group module through the switching state, so as to avoid the temperature of the light emitting control circuit being too high, improve the stability of the light emitting control circuit, and further improve the stability of the brightness of the light emitting sign. BRIEF DESCRIPTION OF DRAWINGS

[0030] Figure 1 is a module block diagram of the light emitting control circuit provided by the embodiment of the present application;

[0031] Figure 2 is Figure 1 a module block diagram of the lamp group module and the lamp group driving module of

[0032] Figure 3A is a circuit principle diagram of the lamp group module and the lamp group driving module provided by an embodiment of the present application;

[0033] Figure 3B is a circuit principle diagram of the lamp group module and the lamp group driving module provided by another embodiment of the present application;

[0034] Figure 3C is a circuit schematic diagram of a lamp group module and a lamp group driving module provided by another embodiment of the present application;

[0035] Figure 4 is a module block diagram of a light emitting control circuit provided by another embodiment of the present application;

[0036] Figure 5A is a circuit schematic diagram of a voltage stabilizing power supply module provided by an embodiment of the present application;

[0037] Figure 5B is a circuit schematic diagram of a voltage stabilizing power supply module provided by another embodiment of the present application;

[0038] Figure 5C is a circuit schematic diagram of a voltage stabilizing power supply module provided by another embodiment of the present application;

[0039] Figure 6 is a circuit schematic diagram of a communication transceiver module provided by an embodiment of the present application;

[0040] Figure 7 is a module block diagram of a light emitting control circuit provided by another embodiment of the present application;

[0041] Reference signs: 10 control module; 20 lamp group driving module; 21 first lamp group driving sub-module; 22 second lamp group driving sub-module; 30 lamp group module; 31 first lamp group sub-module; 32 second lamp group sub-module; 40 temperature detection module; 50 communication transceiver module; 60 voltage stabilizing power supply module; 70 overcurrent protection module. DETAILED DESCRIPTION

[0042] In order to make the objects, technical solutions and advantages of the present application clearer, the present application is further described in detail below in combination with the drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application, and are not used to limit the present application.

[0043] It should be noted that although the functional modules are divided in the device schematic diagram, and the logical order is shown in the flowchart, in some cases, the steps shown or described can be executed in a manner different from the module division in the device or the order in the flowchart. The terms "first", "second", etc. in the specification and claims and the above drawings are used to distinguish similar objects, and do not necessarily describe a specific order or sequence.

[0044] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which the present application belongs. The terms used herein are only for the purpose of describing the embodiments of the present application, and are not intended to limit the present application.

[0045] Firstly, some terms involved in the present application are analyzed:

[0046] CAN (Controller Area Network, CAN for short): an internationally standardized serial communication protocol. CAN protocol is widely used in the field of automobiles and can perform high-speed communication and data transmission.

[0047] The light-emitting control circuit, the light-emitting sign and the automobile provided by the embodiments of the present application are specifically described through the following embodiments. First, the light-emitting control circuit in the embodiments of the present application is described.

[0048] Figure 1 is an optional module block diagram of the light-emitting control circuit provided by the embodiments of the present application. The light-emitting control circuit comprises a control module 10, a lamp group driving module 20, a lamp group module 30 and a temperature detection module 40.

[0049] The control module 10 is electrically connected with the lamp group driving module 20 and the temperature detection module 40 respectively, and the lamp group driving module 20 is electrically connected with the lamp group module 30.

[0050] The temperature detection module 40 is used for detecting the temperature of the lamp group module 30, the control module 10 is used for controlling the switching state of the lamp group driving module 20 according to the temperature, and the lamp group driving module 20 controls the light-emitting intensity of the lamp group module 30 through the switching state.

[0051] Specifically, the control module 10 can be an MCU (Microcontroller Unit).

[0052] It should be noted that the resistance value of the thermistor changes with temperature. Specifically, the thermistor can be an NTC (Negative Temperature Coefficient Thermistor), and the resistance value of the NTC decreases as the temperature rises.

[0053] The beneficial effects of the embodiments of the present application include but are not limited to: the temperature detection module 40 is used for detecting the temperature of the lamp group module 30, the control module 10 is used for controlling the switching state of the lamp group driving module 20 according to the temperature, and the lamp group driving module 20 controls the light-emitting intensity of the lamp group module 30 through the switching state, thereby avoiding the temperature of the light-emitting control circuit being too high, improving the stability of the light-emitting control circuit, and further improving the stability of the light-emitting sign brightness.

[0054] In some embodiments, the control module 10 is further configured to calculate the current value according to the temperature, and calculate the power of the lamp group according to the current value and preset circuit parameters, for example, calculate the power according to the resistance and the current of the lamp group. The advantage of this embodiment is that the control module 10 controls the switching state of the lamp group driving module 20 when the power is greater than or equal to the preset power threshold, and the lamp group driving module 20 controls the luminous intensity of the lamp group module 30 through the switching state, thereby controlling the brightness and power of the lamp group module 30.

[0055] Please refer to Figure 2 In some embodiments, the lamp group module 30 includes a first lamp group submodule 31 and a second lamp group submodule 32; the lamp group driving module 20 includes a first lamp group driving submodule 21 and a second lamp group driving submodule 22;

[0056] The control module 10 is electrically connected to the first lamp group driving submodule 21 and the second lamp group driving submodule 22;

[0057] Wherein, the temperature includes a first sub-temperature of the first lamp group submodule 31 and a second sub-temperature of the second lamp group submodule 32, and the switching state of the lamp group driving module 20 includes a first switching sub-state of the first lamp group driving submodule 21 and a second switching sub-state of the second lamp group driving submodule 22; the luminous intensity includes a first sub-luminous intensity of the first lamp group submodule 31 and a second sub-luminous intensity of the second lamp group submodule 32;

[0058] The control module 10 is configured to control the first switching sub-state according to the first sub-temperature and control the second switching sub-state according to the second sub-temperature, the first lamp group driving submodule 21 is configured to control the first sub-luminous intensity according to the first switching sub-state, and the second lamp group driving submodule 22 is configured to control the second sub-luminous intensity according to the second switching sub-state.

[0059] It should be noted that the first sub-temperature refers to the temperature of the first lamp group submodule 31, and the second sub-temperature refers to the temperature of the second lamp group submodule 32. The first switching sub-state refers to the state of the switch in the first lamp group driving submodule 21, and the second switching sub-state refers to the state of the switch in the second lamp group driving submodule 22. Specifically, the switch can be a MOS tube (MOSFET, Metal-Oxide-Semiconductor Field-Effect Transistor) or a triode. The first sub-luminous intensity refers to the luminous intensity of the first lamp group submodule 31, and the second sub-luminous intensity refers to the luminous intensity of the second lamp group submodule 32.

[0060] The advantage of this embodiment is that the first sub-temperature of the first lamp group submodule 31 and the second sub-temperature of the second lamp group submodule 32 are obtained, so that the luminous intensity of each lamp group submodule in the lamp group submodule is adjusted more finely according to different temperatures, the stability of the light-emitting control circuit is improved, and the stability of the luminous sign brightness is further improved.

[0061] In some embodiments, the first lamp group submodule 31 comprises a first light emitting unit and a second light emitting unit; the first lamp group driving submodule 21 comprises a switch unit;

[0062] The first light emitting unit and the second light emitting unit are connected in parallel, and the switch unit is connected with the first light emitting unit and the second light emitting unit respectively; the first sub-light intensity comprises a first target sub-intensity and a second target sub-intensity; the switch unit is used for controlling the first target sub-intensity of the first light emitting unit and the second target sub-intensity of the second light emitting unit according to the first switch sub-state.

[0063] It should be noted that the first target sub-intensity refers to the light emitting intensity of the first light emitting unit, and the second target sub-intensity refers to the light emitting intensity of the second light emitting unit. Specifically, the first light emitting unit or the second light emitting unit can be composed of a plurality of LED lamp beads.

[0064] In some embodiments, the first light emitting unit comprises at least one first light emitting diode, and the second light emitting unit comprises at least one second light emitting diode; the first light emitting diode and the second light emitting diode are connected in parallel; the switch unit is connected with the first light emitting diode and the second light emitting diode respectively.

[0065] Please refer to Figure 2 and Figure 3A In some embodiments, the first light emitting unit (not shown in the figure) of the first lamp group submodule 31 comprises a first light emitting diode LED1, a second light emitting diode LED2 and a third light emitting diode LED3; the second light emitting unit (not shown in the figure) of the first lamp group submodule 31 comprises a fourth light emitting diode LED4, a fifth light emitting diode LED5 and a sixth light emitting diode LED6; the first lamp group driving submodule 21 comprises a first switch Q1, a first capacitor C1 and a first voltage stabilizing diode Z1.

[0066] Please refer to Figure 2 and Figure 3B In some embodiments, the second lamp group submodule 32 comprises a seventh light emitting diode LED7, an eighth light emitting diode LED8, a ninth light emitting diode LED9, a tenth light emitting diode LED10, an eleventh light emitting diode LED11 and a twelfth light emitting diode LED12; the second lamp group driving submodule 22 comprises a second switch Q2, a second capacitor C2 and a second voltage stabilizing diode Z2;

[0067] Please refer to the figure Figure 3CIn some embodiments, the lamp group module 30 further comprises a third lamp group submodule (not shown in the figure), and the lamp group driving module 20 further comprises a third lamp group driving submodule (not shown in the figure); the third lamp group submodule comprises a thirteenth light-emitting diode LED 13 and a fourteenth light-emitting diode LED 14, and the third lamp group driving submodule comprises a third switch Q3, a third capacitor C3 and a third zener diode Z3.

[0068] The embodiment has the advantage that the brightness of the lamp group module 30 is improved by arranging multiple lamp group submodules.

[0069] It should be noted that, in Figure 3A , Figure 3B and Figure 3C , the VB is a voltage stabilizing power supply end, which is electrically connected to the voltage stabilizing power supply module 60 (such as Figure 4 ). The GN1 port, the AD1 port, the GN2 port, the AD2 port, the GN3 port and the AD3 port are respectively electrically connected to the control module 10.

[0070] In some embodiments, the control module 10 is configured to determine that the first switch submodule state is in an open state when the first sub-temperature is greater than or equal to a preset temperature threshold, and the control module 10 is further configured to determine that the first switch submodule state is in a closed state when the first sub-temperature is less than the preset temperature threshold.

[0071] Please refer to Figure 4 , in some embodiments, the light-emitting control circuit further comprises a communication transceiver module 50 and a voltage stabilizing power supply module 60.

[0072] The voltage stabilizing power supply module 60 is respectively electrically connected to the control module 10, the communication transceiver module 50 and the lamp group module 30, and the communication transceiver module 50 is electrically connected to the control module 10; the voltage stabilizing power supply module 60 is configured to supply power to the control module 10, the lamp group module 30 and the communication transceiver module 50 respectively; the communication transceiver module 50 is configured to send a control instruction to the control module 10, and the control module 10 is configured to control the switch state of the lamp group driving module 20 according to the control instruction; the communication transceiver module 50 is further configured to receive lamp group performance data of the lamp group module 30 fed back by the control module 10.

[0073] The embodiment has the advantage that the communication transceiver module 50 sends a control instruction to the control module 10, and the control module 10 controls the switch state of the lamp group driving module 20 according to the control instruction, and the communication transceiver module 50 further receives data fed back by the control module 10, such as lamp group performance data of the lamp group module 30.

[0074] Specifically, the lamp group performance data comprises lamp group power, lamp group current value, lamp group light-emitting duration, lamp group light intensity, etc.

[0075] It should be noted that the communication transceiver module 50 is also used to receive other data or instructions fed back by the control module 10, such as temperature data of the light-emitting control circuit. The communication transceiver module 50 can send the data of the control module 10 to the host computer, and the host computer can display the data.

[0076] In some embodiments, the control module 10 is a first chip.

[0077] Please refer to Figure 5A , Figure 5B and Figure 5C , in some embodiments, the voltage stabilizing power supply module 60 includes a second chip U2, a third chip U3, a fourth capacitor C4, a fifth capacitor C5, a sixth capacitor C6, a seventh capacitor C7 and a first clamping diode TVS1.

[0078] Specifically, in Figure 5C , the voltage stabilizing power supply module 60 further includes a first diode D1.

[0079] It should be noted that, in Figure 5A , VDD1 represents a first voltage terminal, the first voltage terminal is electrically connected to the control module 10, and the second chip U2 supplies power to the control module 10 through the first voltage terminal. Specifically, the first voltage terminal can output a voltage of 3.3V.

[0080] It should be noted that, in Figure 5B , VDD2 represents a second voltage terminal, the second voltage terminal is electrically connected to the communication transceiver module 50, and the third chip U3 supplies power to the communication transceiver module 50 through the second voltage terminal. Specifically, the second voltage terminal can output a voltage of 5V.

[0081] It should be noted that, in Figure 5C , VCC represents an external power supply terminal, which is used to connect an external power supply device.

[0082] Please refer to Figure 6 , in some embodiments, the communication transceiver module 50 includes a fourth chip U4, an eighth capacitor C8, a ninth capacitor C9, a second clamping diode TVS2 and a third clamping diode TVS3.

[0083] It should be noted that, in Figure 6 , the CAN_TX terminal, the CAN_RX terminal, the STB terminal, the CAN_H terminal and the CAN_L terminal are respectively electrically connected to the control module 10.

[0084] Specifically, the communication transceiver module 50 can use the CAN (Controller Area Network) protocol for communication.

[0085] Please refer to Figure 7 , in some embodiments, the light-emitting control circuit further includes an overcurrent protection module 70;

[0086] The overcurrent protection module 70 is connected with the control module 10 and the voltage stabilizing power supply module 60 respectively; the overcurrent protection module 70 is used for detecting the current output by the voltage stabilizing power supply module 60, and performing current protection on the control module 10 according to the current.

[0087] The embodiment has the advantage that the overcurrent protection module 70 is used for detecting the current output by the voltage stabilizing power supply module 60, and performing current protection on the control module 10, thereby improving the stability of the light-emitting control circuit.

[0088] Specifically, the overcurrent protection module 70 can be a fuse. When the current output by the voltage stabilizing power supply module 60 exceeds a preset current threshold, the fuse is switched from a conduction state to a disconnection state.

[0089] The embodiment of the present application further provides a light-emitting sign. The light-emitting sign comprises a shell and a circuit board, the circuit board is arranged inside the shell, the shell comprises a cover body and a base, and the circuit board has the light-emitting control circuit described above.

[0090] The cover body and the circuit board are connected with the base respectively; the cover body has a light-transmitting area, and the light-transmitting area is used for transmitting the light emitted by the light-emitting control circuit.

[0091] The embodiment has the advantage that the light-transmitting area of the cover body has a preset shape, and the shape of the light-transmitting area is the shape of the sign.

[0092] In an embodiment, the light-emitting sign further comprises a diffusion plate and a clamping piece; the cover body and the base are buckled and connected through the clamping piece, the diffusion plate is connected with the base, and the clamping column of the diffusion plate abuts against the circuit board, so that the circuit board is fixed between the base and the diffusion plate.

[0093] The embodiment has the advantage that vibration can be avoided to cause the light-emitting sign to fail to work normally, and the stability of the light-emitting sign is improved. For example, the light-emitting sign is arranged at the head part of a vehicle, and vibration occurs during driving of the vehicle, which can cause the circuit board in the light-emitting sign to be damaged by knocking.

[0094] In an embodiment, the cover body further has a non-light-transmitting area, and the non-light-transmitting area is provided with a reflective layer; the reflective layer is used for reflecting the light emitted by the light-emitting control circuit.

[0095] The embodiment has the advantage that the reflective layer is used for uniformly reflecting the light emitted by the light-emitting control circuit, thereby improving the brightness uniformity of the light-emitting sign.

[0096] The specific implementation of the light-emitting sign is basically the same as the specific embodiment of the light-emitting control circuit described above, and will not be described herein again.

[0097] The embodiment of the present application further provides a vehicle, and the vehicle comprises the light-emitting sign described above.

[0098] Specifically, the light-emitting sign can be arranged at the front or the rear of the automobile. The automobile can be a new energy automobile.

[0099] The embodiments described in the present application are for more clearly illustrating the technical solutions of the present application, and do not constitute a limitation on the technical solutions provided by the present application. Those skilled in the art can know that, with the evolution of technology and the emergence of new application scenarios, the technical solutions provided by the present application are also applicable to similar technical problems.

[0100] The device embodiments described above are only schematic, and the units described as separate components may or may not be physically separate, i.e., may be located in one place or distributed over multiple units. Some or all of the modules can be selected according to actual needs to achieve the purpose of the present embodiment.

[0101] Those skilled in the art can understand that all or some of the steps in the method disclosed above, the functional modules / units in the system and the device can be implemented as software, firmware, hardware or appropriate combinations thereof.

[0102] The terms "first", "second", "third", "fourth" and the like in the description of the present application and the above-described drawings (if any) are used to distinguish similar objects, and do not necessarily indicate a specific order or sequence. It should be understood that the data thus used can be interchanged under appropriate circumstances, so that the embodiments of the present application described herein can be implemented in an order other than those illustrated or described herein. In addition, the terms "include" and "have" and any variations thereof are intended to cover non-exclusive inclusion, for example, a process, method, system, product or device including a series of steps or units does not necessarily have to be limited to those steps or units clearly listed, but can include other steps or units not clearly listed or inherent to these processes, methods, products or devices.

[0103] It should be understood that in the present application, "at least one" means one or more, and "multiple" means two or more. "And / or" is used to describe the association relationship of the associated objects, which means that there can be three relationships, for example, "A and / or B" can represent three cases: only A exists, only B exists, and A and B exist at the same time, where A and B can be singular or plural. The character " / " generally represents an "or" relationship between the associated objects. "At least one of the following" or similar expressions means any combination of these items, including any combination of single or multiple items. For example, at least one of a, b or c can mean: a, b, c, "a and b", "a and c", "b and c", or "a and b and c", where a, b, and c can be single or multiple.

[0104] In several embodiments provided in the present application, it should be understood that the disclosed apparatus and method can be implemented by other manners. For example, the apparatus embodiments described above are merely illustrative, for example, the division of the above units is merely a logical function division, and actual implementation can have another division manner, for example, a plurality of units or components can be combined or integrated into another system, or some features can be ignored or not executed. The coupling or direct coupling or communication connection between the units or components shown or discussed can be indirect coupling or communication connection through some interfaces, apparatuses or units, and can be electrical, mechanical or other forms.

[0105] The units described above as separate components can or can not be physically separate, and the components shown as units can or can not be physical units, that is, can be located in one place, or can be distributed on a plurality of network units. Part or all of the units can be selected according to actual needs to achieve the purpose of the embodiment scheme.

[0106] In addition, the functional units in each embodiment of the present application can be integrated in one processing unit, or each unit can be physically present separately, or two or more units can be integrated in one unit. The integrated unit can be realized in the form of hardware or in the form of a software functional unit.

[0107] If the integrated unit is realized in the form of a software functional unit and sold or used as an independent product, it can be stored in a computer readable storage medium. Based on such understanding, the technical solutions of the present application essentially or the part of the prior art that makes a contribution or the whole or part of the technical solutions can be embodied in the form of a software product. The computer software product is stored in a storage medium, including a plurality of instructions for causing a computer device (which can be a personal computer, a server, or a network device, etc.) to execute all or part of the steps of the method of each embodiment of the present application. The foregoing storage medium includes: a U disk, a mobile hard disk, a read-only memory (ROM), a random access memory (RAM), a magnetic disk or an optical disk, and various program storage media.

[0108] The preferred embodiments of the embodiments of the present application are described above with reference to the accompanying drawings, but the scope of the right of the embodiments of the present application is not limited to this. Any modification, equivalent replacement and improvement made by those skilled in the art without departing from the scope and essence of the embodiments of the present application shall be within the scope of the right of the embodiments of the present application.

Claims

1. A light emission control circuit, characterized by comprising: The light-emitting control circuit comprises a control module, a lamp group module, a lamp group driving module, a temperature detection module, a communication transceiver module, a voltage stabilizing power supply module and an overcurrent protection module; The control module is electrically connected with the lamp group driving module and the temperature detection module respectively, the lamp group driving module is electrically connected with the lamp group module, the voltage stabilizing power supply module is electrically connected with the control module, the communication transceiver module and the lamp group module respectively, the communication transceiver module is electrically connected with the control module, and the overcurrent protection module is connected with the control module and the voltage stabilizing power supply module respectively; The temperature detection module is used for detecting the temperature of the lamp group module, the control module is used for controlling the switching state of the lamp group driving module according to the temperature, and the lamp group driving module controls the light-emitting intensity of the lamp group module through the switching state; The voltage stabilizing power supply module is used for supplying power to the control module, the lamp group module and the communication transceiver module respectively, the communication transceiver module is used for sending a control instruction to the control module, and the control module is used for controlling the switching state of the lamp group driving module according to the control instruction; The communication transceiver module is also used for receiving lamp group performance data of the lamp group module fed back by the control module, wherein the lamp group performance data comprises lamp group power, lamp group current value, lamp group light-emitting duration and lamp group light intensity; The overcurrent protection module is used for detecting the current output by the voltage stabilizing power supply module and performing current protection on the control module according to the current.

2. The light emission control circuit according to claim 1, characterized by The lamp group module comprises a first lamp group submodule and a second lamp group submodule, and the lamp group driving module comprises a first lamp group driving submodule and a second lamp group driving submodule; The control module is electrically connected with the first lamp group driving submodule and the second lamp group driving submodule, the first lamp group driving submodule is electrically connected with the first lamp group submodule, and the second lamp group driving submodule is electrically connected with the second lamp group submodule; The temperature comprises a first sub-temperature of the first lamp group submodule and a second sub-temperature of the second lamp group submodule, the switching state of the lamp group driving module comprises a first switching sub-state of the first lamp group driving submodule and a second switching sub-state of the second lamp group driving submodule, and the light-emitting intensity comprises a first sub-light-emitting intensity of the first lamp group submodule and a second sub-light-emitting intensity of the second lamp group submodule; The control module is used for controlling the first switching sub-state according to the first sub-temperature and controlling the second switching sub-state according to the second sub-temperature, the first lamp group driving submodule is used for controlling the first sub-light-emitting intensity according to the first switching sub-state, and the second lamp group driving submodule is used for controlling the second sub-light-emitting intensity according to the second switching sub-state.

3. The light emission control circuit according to claim 2, characterized by The first lamp group submodule comprises a first light-emitting unit and a second light-emitting unit, and the first lamp group driving submodule comprises a switching unit; The first light-emitting unit and the second light-emitting unit are connected in parallel, and the switching unit is connected with the first light-emitting unit and the second light-emitting unit respectively. The first sub-emitting intensity comprises a first target sub-intensity and a second target sub-intensity; the switch unit is configured to control the first target sub-intensity of the first light-emitting unit and the second target sub-intensity of the second light-emitting unit according to the first switch sub-state.

4. The light emission control circuit according to claim 3, characterized by The first light-emitting unit comprises at least one first light-emitting diode, and the second light-emitting unit comprises at least one second light-emitting diode. The first light-emitting diode and the second light-emitting diode are connected in parallel, and the switch unit is connected with the first light-emitting diode and the second light-emitting diode respectively.

5. The light emission control circuit according to claim 2, wherein The control module is configured to determine the first switch sub-state as an open state when the first sub-temperature is greater than or equal to a preset temperature threshold. The control module is further configured to determine the first switch sub-state as a closed state when the first sub-temperature is less than the preset temperature threshold.

6. A lighted sign, characterized by The light-emitting sign comprises a shell and a circuit board, the circuit board is arranged inside the shell, the shell comprises a cover body and a base, and the circuit board has the light-emitting control circuit according to any one of claims 1 to 5. The cover body and the circuit board are connected with the base respectively, the cover body has a light-transmitting area, and the light-transmitting area is configured to transmit light emitted by the light-emitting control circuit.

7. The illuminated sign of claim 6, wherein, The cover body further has a non-light-transmitting area, the non-light-transmitting area is provided with a light-reflecting layer, and the light-reflecting layer is configured to reflect light emitted by the light-emitting control circuit.

8. An automobile characterized by comprising: The automobile comprises the light-emitting sign according to any one of claims 6 to 7.

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