CN204506703U - Vehicle-mounted lighting circuit and vehicle intelligent terminal - Google Patents
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Abstract
本实用新型公开了一种车载照明电路，该车载照明电路包括开关检测模块、主控模块、电源管理模块和照明模块；所述主控模块的检测输入端与所述开关检测模块的检测输出端连接，所述主控模块的控制信号输出端与所述电源管理模块的控制输入端连接，所述电源管理模块的电流通道输出端与所述照明模块连接。本实用新型还公开了一种车载智能终端，该车载智能终端包括上述车载照明电路。本实用新型通过设置照明开关和照明灯，通过设置通过开关检测模块检测照明开关的状态，在照明开关开启时由控制电源管理模块输出驱动电流驱动照明灯发光，使得车载智能终端具体照明功能，实现车载智能终端功能的多元化。
The utility model discloses a vehicle-mounted lighting circuit, which comprises a switch detection module, a main control module, a power supply management module and a lighting module; the detection input end of the main control module and the detection output end of the switch detection module The control signal output terminal of the main control module is connected with the control input terminal of the power management module, and the current channel output terminal of the power management module is connected with the lighting module. The utility model also discloses a vehicle-mounted intelligent terminal, which includes the above-mentioned vehicle-mounted lighting circuit. The utility model is provided with a lighting switch and a lighting lamp, and by setting a switch detection module to detect the state of the lighting switch, and when the lighting switch is turned on, the control power supply management module outputs a driving current to drive the lighting lamp to emit light, so that the specific lighting function of the vehicle-mounted intelligent terminal is realized. The diversification of vehicle intelligent terminal functions.
Description
技术领域technical field
本实用新型涉及车载技术领域，尤其涉及一种车载照明电路和车载智能终端。The utility model relates to the field of vehicle technology, in particular to a vehicle lighting circuit and a vehicle intelligent terminal.
背景技术Background technique
车载智能终端集成移动通讯、手机电视、GPS等多项功能，现有的车载智能终端都是嵌入式安装于汽车内部的操作台的前壳体内，这种车载智能终端是与显示屏终端一体设置的，为便于车载智能终端的主控模块(即中央处理器)、存储模块、音频处理模块、显示处理模块、无线通讯模块等功能模块的更新升级，将车载智能终端与显示屏终端分体设置成为目前车载通讯领域的研究热点，然而目前存在的方案大都直接将车载智能终端与显示屏终端分离，且将车载智能终端安装在车窗上，车载智能终端仍只具有现有功能，功能单一。The vehicle-mounted intelligent terminal integrates multiple functions such as mobile communication, mobile TV, and GPS. The existing vehicle-mounted intelligent terminal is embedded in the front shell of the console inside the car. This vehicle-mounted intelligent terminal is integrated with the display terminal. Yes, in order to facilitate the update and upgrade of the main control module (that is, the central processing unit), storage module, audio processing module, display processing module, wireless communication module and other functional modules of the vehicle-mounted intelligent terminal, the vehicle-mounted intelligent terminal and the display terminal are separately set It has become a research hotspot in the field of in-vehicle communication. However, most of the existing solutions directly separate the in-vehicle intelligent terminal from the display terminal, and install the in-vehicle intelligent terminal on the window.
实用新型内容Utility model content
本实用新型的主要目的在于提供一种车载照明电路和车载智能终端，旨在实现车载智能终端功能的多元化。The main purpose of the utility model is to provide a vehicle-mounted lighting circuit and a vehicle-mounted intelligent terminal, aiming at realizing the diversification of functions of the vehicle-mounted intelligent terminal.
为了达到上述目的，本实用新型提供一种车载照明电路，所述车载照明电路包括开关检测模块、主控模块、电源管理模块和照明模块；所述主控模块的检测输入端与所述开关检测模块的检测输出端连接，所述主控模块的控制信号输出端与所述电源管理模块的控制输入端连接，所述电源管理模块的电流通道输出端与所述照明模块连接；In order to achieve the above object, the utility model provides a vehicle-mounted lighting circuit, which includes a switch detection module, a main control module, a power management module and a lighting module; the detection input terminal of the main control module is connected to the switch detection The detection output terminal of the module is connected, the control signal output terminal of the main control module is connected with the control input terminal of the power management module, and the current channel output terminal of the power management module is connected with the lighting module;
所述开关检测模块包括照明开关，所述照明模块包括照明灯；所述开关检测模块检测照明开关的状态并输出检测信号至所述主控模块，所述主控模块根据所述检测信号确定所述照明开关的状态，且在所述照明开关开启时输出控制信号至所述电源管理模块，所述电源管理模块根据所述控制信号输出驱动电流至所述照明模块，以驱动所述照明灯发光。The switch detection module includes a lighting switch, and the lighting module includes a lighting lamp; the switch detection module detects the state of the lighting switch and outputs a detection signal to the main control module, and the main control module determines the state of the lighting switch, and output a control signal to the power management module when the lighting switch is turned on, and the power management module outputs a driving current to the lighting module according to the control signal to drive the lighting lamp to emit light .
优选地，所述开关检测模块还包括第一电阻和第二电阻；所述第二电阻的一端与所述主控模块的检测输入端连接，且经由所述第一电阻与一直流电源连接，所述第二电阻的另一端与所述照明开关的一端连接，所述照明开关的另一端接地。Preferably, the switch detection module further includes a first resistor and a second resistor; one end of the second resistor is connected to the detection input terminal of the main control module, and connected to a DC power supply via the first resistor, The other end of the second resistor is connected to one end of the lighting switch, and the other end of the lighting switch is grounded.
优选地，所述开关检测模块还包括第三电阻；所述第三电阻的一端与所述第一电阻和所述第二电阻的公共端连接，所述第三电阻的另一端与所述主控模块的检测输入端连接。Preferably, the switch detection module further includes a third resistor; one end of the third resistor is connected to the common end of the first resistor and the second resistor, and the other end of the third resistor is connected to the main The detection input terminal connection of the control module.
优选地，所述照明开关为一按键开关。Preferably, the lighting switch is a key switch.
优选地，所述照明开关为一机械开关。Preferably, the lighting switch is a mechanical switch.
优选地，所述照明模块还包括第四电阻；所述第四电阻的一端与所述照明灯的负极连接，所述第四电阻的另一端与所述电源管理模块的电流通道输出端连接，所述照明灯的正极与一直流电源连接。Preferably, the lighting module further includes a fourth resistor; one end of the fourth resistor is connected to the negative pole of the lighting lamp, and the other end of the fourth resistor is connected to the current channel output end of the power management module, The positive pole of the illuminating lamp is connected with a DC power supply.
此外，为了达到上述目的，本实用新型还提供一种车载智能终端，所述车载智能终端包括车载照明电路，所述车载照明电路包括开关检测模块、主控模块、电源管理模块和照明模块；所述主控模块的检测输入端与所述开关检测模块的检测输出端连接，所述主控模块的控制信号输出端与所述电源管理模块的控制输入端连接，所述电源管理模块的电流通道输出端与所述照明模块连接；In addition, in order to achieve the above purpose, the utility model also provides a vehicle-mounted intelligent terminal, the vehicle-mounted intelligent terminal includes a vehicle-mounted lighting circuit, and the vehicle-mounted lighting circuit includes a switch detection module, a main control module, a power management module and a lighting module; The detection input end of the main control module is connected to the detection output end of the switch detection module, the control signal output end of the main control module is connected to the control input end of the power management module, and the current channel of the power management module The output terminal is connected to the lighting module;
所述开关检测模块包括照明开关，所述照明模块包括照明灯；所述开关检测模块检测照明开关的状态并输出检测信号至所述主控模块，所述主控模块根据所述检测信号确定所述照明开关的状态，且在所述照明开关开启时输出控制信号至所述电源管理模块，所述电源管理模块根据所述控制信号输出驱动电流至所述照明模块，以驱动所述照明灯发光。The switch detection module includes a lighting switch, and the lighting module includes a lighting lamp; the switch detection module detects the state of the lighting switch and outputs a detection signal to the main control module, and the main control module determines the state of the lighting switch, and output a control signal to the power management module when the lighting switch is turned on, and the power management module outputs a driving current to the lighting module according to the control signal to drive the lighting lamp to emit light .
本实用新型提供的车载照明电路和车载智能终端，通过设置照明开关和照明灯，通过开关检测模块检测照明开关的状态并输出检测信号至主控模块，主控模块在确定照明开关开启时输出控制信号至电源管理模块，以控制电源管理模块输出驱动电流驱动照明灯发光，使得车载智能终端具体照明功能，实现车载智能终端功能的多元化。The vehicle-mounted lighting circuit and the vehicle-mounted intelligent terminal provided by the utility model, by setting the lighting switch and the lighting lamp, detect the state of the lighting switch through the switch detection module and output the detection signal to the main control module, and the main control module outputs control The signal is sent to the power management module to control the output driving current of the power management module to drive the lighting lamp to emit light, so that the specific lighting function of the vehicle-mounted intelligent terminal can be realized, and the functions of the vehicle-mounted intelligent terminal can be diversified.
附图说明Description of drawings
图1为本实用新型车载照明电路较佳实施例的电路结构示意图。FIG. 1 is a schematic diagram of the circuit structure of a preferred embodiment of the vehicle lighting circuit of the present invention.
本实用新型的目的、功能特点及优点的实现，将结合实施例，并参照附图作进一步说明。The realization of the purpose, functional characteristics and advantages of the utility model will be further described in conjunction with the embodiments and with reference to the accompanying drawings.
具体实施方式Detailed ways
应当理解，此处所描述的具体实施例仅仅用以解释本实用新型，并不用于限定本实用新型。It should be understood that the specific embodiments described here are only used to explain the utility model, and are not intended to limit the utility model.
本实用新型提供一种车载照明电路，该车载照明电路应用于车载智能终端。The utility model provides a vehicle-mounted lighting circuit, which is applied to a vehicle-mounted intelligent terminal.
参照图1，图1为本实用新型车载照明电路较佳实施例的电路结构示意图。Referring to Fig. 1, Fig. 1 is a schematic diagram of the circuit structure of a preferred embodiment of the vehicle lighting circuit of the present invention.
本实用新型较佳实施例中，本实用新型的车载照明电路包括开关检测模块10、主控模块20、电源管理模块30和照明模块40；所述主控模块20的检测输入端与所述开关检测模块10的检测输出端连接，所述主控模块20的控制信号输出端与所述电源管理模块30的控制输入端连接，所述电源管理模块30的电流通道输出端与所述照明模块40连接。In a preferred embodiment of the utility model, the vehicle-mounted lighting circuit of the utility model includes a switch detection module 10, a main control module 20, a power management module 30 and a lighting module 40; the detection input terminal of the main control module 20 is connected to the switch The detection output terminal of the detection module 10 is connected, the control signal output terminal of the main control module 20 is connected with the control input terminal of the power management module 30, the current channel output terminal of the power management module 30 is connected with the lighting module 40 connect.
所述开关检测模块10包括照明开关S1，所述照明模块40包括照明灯L1；所述开关检测模块10检测照明开关S1的状态并输出检测信号至所述主控模块20，所述主控模块20根据所述检测信号确定所述照明开关S1的状态，且在所述照明开关S1开启时输出控制信号至所述电源管理模块30，所述电源管理模块30根据所述控制信号输出驱动电流至所述照明模块40，以驱动所述照明灯L1发光。The switch detection module 10 includes a lighting switch S1, and the lighting module 40 includes a lighting lamp L1; the switch detection module 10 detects the state of the lighting switch S1 and outputs a detection signal to the main control module 20, and the main control module 20. Determine the state of the lighting switch S1 according to the detection signal, and output a control signal to the power management module 30 when the lighting switch S1 is turned on, and the power management module 30 outputs a driving current to the The lighting module 40 is used to drive the lighting lamp L1 to emit light.
在本实施例中，开关检测模块10检测照明开关S1的状态，并根据检测到的照明开关S1状态输出相应的检测信号至主控模块20，本实施例优选地，当照明开关S1未开启时，开关检测模块10输出高电平的检测信号至主控模块20；当照明开关S1开启，即用户打开照明开关S1时，开关检测模块10输出低电平的检测信号至主控模块20。从而，在初始状态下，主控模块20的检测输入端检测到高电平的检测信号，当主控模块20通过检测输入端检测到低电平的检测信号，主控模块20确定照明开关S1处于开启状态，从而输出一控制信号至电源管理模块30，触发电源管理模块30输出驱动电流至照明模块40，以通过驱动电流驱动照明灯L1发光进行照明。In this embodiment, the switch detection module 10 detects the state of the lighting switch S1, and outputs a corresponding detection signal to the main control module 20 according to the detected state of the lighting switch S1. In this embodiment, preferably, when the lighting switch S1 is not turned on , the switch detection module 10 outputs a high-level detection signal to the main control module 20; Therefore, in the initial state, the detection input terminal of the main control module 20 detects a high-level detection signal, and when the main control module 20 detects a low-level detection signal through the detection input terminal, the main control module 20 determines that the lighting switch S1 In the ON state, a control signal is output to the power management module 30, which triggers the power management module 30 to output a driving current to the lighting module 40, so as to drive the lighting lamp L1 to emit light for lighting through the driving current.
相对于现有技术，本实用新型的车载照明电路，通过开关检测模块10检测照明开关S1的状态并输出检测信号至主控模块20，主控模块20在确定照明开关S1开启时输出控制信号至电源管理模块30，以控制电源管理模块30输出驱动电流驱动照明灯L1发光，使得车载智能终端具体照明功能，实现车载智能终端功能的多元化。Compared with the prior art, the vehicle-mounted lighting circuit of the present invention detects the state of the lighting switch S1 through the switch detection module 10 and outputs a detection signal to the main control module 20, and the main control module 20 outputs a control signal to the main control module 20 when it is determined that the lighting switch S1 is turned on. The power management module 30 controls the output driving current of the power management module 30 to drive the lighting lamp L1 to emit light, so that the vehicle-mounted intelligent terminal has specific lighting functions and realizes the diversification of functions of the vehicle-mounted intelligent terminal.
在用户要进行小区域照明的情况下，可通过车载智能终端进行照明，不需要开启车内灯条进行照明，从而可以减少车辆电能消耗，节省成本。而且，利用车载智能终端原有的主控模块(即中央处理器)，以及对主控模块进行电源管理为主控模块供电的电源管理模块，有利于降低车载智能终端的成本。In the case that the user wants to illuminate a small area, it can be illuminated through the vehicle-mounted intelligent terminal, and there is no need to turn on the light bar in the vehicle for illumination, thereby reducing the power consumption of the vehicle and saving costs. Moreover, the use of the original main control module (that is, the central processing unit) of the vehicle-mounted intelligent terminal, and the power management module that performs power management on the main control module to supply power to the main control module is conducive to reducing the cost of the vehicle-mounted intelligent terminal.
如图1所示，所述开关检测模块10还包括第一电阻R1和第二电阻R2，其中，第一电阻R1作为上拉电阻，第二电阻R2作为下拉电阻；所述第二电阻R2的一端与所述主控模块20的检测输入端连接，且经由所述第一电阻R1与一直流电源VCC(如5V电源)连接，所述第二电阻R2的另一端与所述照明开关S1的一端连接，所述照明开关S1的另一端接地。As shown in Figure 1, the switch detection module 10 also includes a first resistor R1 and a second resistor R2, wherein the first resistor R1 is used as a pull-up resistor, and the second resistor R2 is used as a pull-down resistor; One end is connected to the detection input end of the main control module 20, and is connected to a DC power supply VCC (such as a 5V power supply) via the first resistor R1, and the other end of the second resistor R2 is connected to the light switch S1. One end is connected, and the other end of the lighting switch S1 is grounded.
具体地，所述开关检测模块10还包括第三电阻R3，其中，第三电阻R3作为限流电阻；所述第三电阻R3的一端与所述第一电阻R1和所述第二电阻R2的公共端连接，所述第三电阻R3的另一端与所述主控模块20的检测输入端连接。Specifically, the switch detection module 10 also includes a third resistor R3, wherein the third resistor R3 is used as a current limiting resistor; one end of the third resistor R3 is connected to the first resistor R1 and the second resistor R2 The other end of the third resistor R3 is connected to the detection input end of the main control module 20 .
具体地，上述照明开关S1可以是按键开关，也可以是机械开关等手动开关，用户可通过打开上述照明开关S1触发照明灯L1进行照明。为了减小车载智能终端的体积和成本，本实用新型优选地采用按键开关作为照明开关S1。Specifically, the lighting switch S1 may be a key switch, or a manual switch such as a mechanical switch, and the user may trigger the lighting lamp L1 to illuminate by turning on the lighting switch S1. In order to reduce the volume and cost of the vehicle-mounted intelligent terminal, the utility model preferably uses a key switch as the lighting switch S1.
如图1所示，所述照明模块40还包括第四电阻R4，其中，第四电阻R4作为限流电阻；所述第四电阻R4的一端与所述照明灯L1的负极连接，所述第四电阻R4的另一端与所述电源管理模块30的电流通道输出端连接，所述照明灯L1的正极与一直流电源VCC(如5V电源)连接。As shown in FIG. 1 , the lighting module 40 also includes a fourth resistor R4, wherein the fourth resistor R4 is used as a current limiting resistor; one end of the fourth resistor R4 is connected to the negative pole of the lighting lamp L1, and the fourth resistor R4 is connected to the negative pole of the lighting lamp L1. The other end of the four resistors R4 is connected to the current channel output end of the power management module 30 , and the anode of the illuminating lamp L1 is connected to a DC power supply VCC (such as a 5V power supply).
本实用新型车载照明电路的工作原理具体描述如下：The working principle of the vehicle-mounted lighting circuit of the utility model is specifically described as follows:
如图1所示，当照明开关S1处于开启状态时，由于第二电阻R2的下拉作用，主控模块20的检测输入端相当于经由第三电阻R3、第二电阻R2接到地，此时开关检测模块10输出的检测信号为低电平，主控模块20的检测输入端呈低电平状态，即主控模块20的检测输入端检测到低电平的检测信号。主控模块20根据该低电平的检测信号确定照明开关S1处于开启状态，从而输出控制信号至电源管理模块30，以控制电源管理模块30输出驱动电流主照明模块40，使得照明灯L1获得工作电流而发光，从而能够进行照明。As shown in FIG. 1, when the lighting switch S1 is in the on state, due to the pull-down effect of the second resistor R2, the detection input terminal of the main control module 20 is equivalent to being connected to the ground through the third resistor R3 and the second resistor R2. The detection signal output by the switch detection module 10 is low level, and the detection input terminal of the main control module 20 is in a low level state, that is, the detection input terminal of the main control module 20 detects a low level detection signal. The main control module 20 determines that the lighting switch S1 is in the on state according to the low-level detection signal, so as to output a control signal to the power management module 30, so as to control the power management module 30 to output a driving current to the main lighting module 40, so that the lighting L1 can be operated. Electric current emits light, thereby enabling lighting.
当照明开关S1处于关断状态时，由于第一电阻R1的上拉作用，主控模块20的检测输入端通过第一电阻R1获得配置电压，此时开关检测模块10输出的检测信号为高电平，主控模块20的检测输入端呈高电平状态，即主控模块20的检测输入端检测到高电平的检测信号。主控模块20根据该高电平的检测信号确定照明开关S1处于关断状态，主控模块20切断控制模块的输出，不触发电源管理模块30输出驱动电流，从而照明灯L1处于熄灭状态。When the lighting switch S1 is in the off state, due to the pull-up effect of the first resistor R1, the detection input terminal of the main control module 20 obtains the configuration voltage through the first resistor R1, and the detection signal output by the switch detection module 10 is a high voltage. level, the detection input terminal of the main control module 20 is in a high level state, that is, the detection input terminal of the main control module 20 detects a high level detection signal. The main control module 20 determines that the lighting switch S1 is in the off state according to the high-level detection signal, the main control module 20 cuts off the output of the control module, and does not trigger the power management module 30 to output the driving current, so the lighting lamp L1 is in the off state.
本实用新型还提供一种车载智能终端，该车载智能终端包括车载照明电路，该车载照明电路的电路结构、工作原理以及所带来的有益效果均参照上述实施例，此处不再赘述。The utility model also provides a vehicle-mounted intelligent terminal. The vehicle-mounted intelligent terminal includes a vehicle-mounted lighting circuit. The circuit structure, working principle and beneficial effects of the vehicle-mounted lighting circuit refer to the above-mentioned embodiments, and will not be repeated here.
以上所述仅为本实用新型的优选实施例，并非因此限制本实用新型的专利范围，凡是利用本实用新型说明书及附图内容所作的等效结构或等效流程变换，或直接或间接运用在其他相关的技术领域，均同理包括在本实用新型的专利保护范围内。The above descriptions are only preferred embodiments of the present utility model, and are not therefore limiting the patent scope of the present utility model. Any equivalent structure or equivalent process transformation made by using the specification of the utility model and the contents of the accompanying drawings may be directly or indirectly used in Other relevant technical fields are all included in the patent protection scope of the present utility model in the same way.
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| CN109143116A (en) * | 2018-07-26 | 2019-01-04 | 上海与德科技有限公司 | Lamp condition detection method, device, terminal and storage medium |
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