WO2018076770A1 - 可自动和手动切换外接线与内接线的led显示屏 - Google Patents

可自动和手动切换外接线与内接线的led显示屏 Download PDF

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Publication number
WO2018076770A1
WO2018076770A1 PCT/CN2017/091786 CN2017091786W WO2018076770A1 WO 2018076770 A1 WO2018076770 A1 WO 2018076770A1 CN 2017091786 W CN2017091786 W CN 2017091786W WO 2018076770 A1 WO2018076770 A1 WO 2018076770A1
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Prior art keywords
wiring
external wiring
led display
display screen
signal
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PCT/CN2017/091786
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English (en)
French (fr)
Inventor
郑健
吴晶晶
刘喜宏
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深圳市彩易达光电有限公司
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Publication of WO2018076770A1 publication Critical patent/WO2018076770A1/zh

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    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
    • G09F9/00—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements
    • G09F9/30—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements in which the desired character or characters are formed by combining individual elements
    • G09F9/33—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements in which the desired character or characters are formed by combining individual elements being semiconductor devices, e.g. diodes
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
    • G09G3/20—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
    • G09G3/22—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources
    • G09G3/30—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources using electroluminescent panels
    • G09G3/32—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources using electroluminescent panels semiconductive, e.g. using light-emitting diodes [LED]

Definitions

  • the utility model relates to the field of LED electronic display screens, in particular to an LED display screen which can automatically and manually switch between external wiring and internal wiring.
  • LED display is widely used in transportation systems, advertising systems, sports venues, financial securities and other fields because of its safe use, pure color, high brightness, long life, good playback, easy installation, environmental protection and energy saving. As LED display technology becomes more mature, its application range will be more extensive.
  • the mainstream connection method of the LED display in the market is to use the external wiring method, that is, the single LED display screen is cascaded by the wire; with the development of the market, the way of connecting the LED display with the internal wiring also begins to occupy a place in the market.
  • the internal wiring adopts the built-in interface of the box, and the wire cascading is not required between the boxes after the splicing box, and both have advantages in user experience and function operation.
  • the advantage of this product is that the customer can freely choose two connection modes to adapt to different installation requirements.
  • the existing LED display screens cannot realize the switching of the display connection mode. When encountering problems such as internal wiring or external wiring failure, it is impossible to switch in time to ensure the normal use of the display.
  • the connection of the existing LED display is fixed, if the replacement connection method is needed, the entire LED display screen needs to be adjusted, and the whole replacement process is complicated and time-consuming and labor-intensive.
  • the utility model provides an automatic and manual switching external wiring LED display with internal wiring, no need to use auxiliary tools when switching line on LED unit screen, no need for highly skilled professionals, saving time and effort in switching process, small structure, integrated with LED unit screen control box, safe Reliable and low cost.
  • the LED display screen capable of automatically and manually switching the external wiring and the internal wiring is characterized in that it comprises an LED display screen, and the LED display screen is internally provided with independent power switchers and signal switches, and the input of the power switch
  • the terminals are respectively connected to the internal wiring power input end and the external wiring power input end, and the output ends thereof are respectively connected to the internal wiring power output end and the external wiring power output end, and the input ends of the signal switcher are respectively connected to the internal wiring signal input end and the external wiring.
  • a signal input end, the output end of which is respectively connected to the inner wiring signal output end and the outer wiring signal output end;
  • the internal wiring power input end and the external wiring power input end are all connected with a magnetic control switch, and the external wiring signal input end and the external wiring signal output end are connected with an automatic control switch, and the magnetic control switch
  • the automatic control switch is connected to a manual switching button.
  • the present invention according to the above aspect is characterized in that the inner wiring is a wireless connection.
  • the present invention according to the above aspect is characterized in that the external wiring is a wired connection.
  • the external wiring is a wire with an aviation head.
  • the magnetic control switch includes an iron core, a coil disposed outside the iron core, and an armature, and the armature is provided with an electric shock spring.
  • the armature is provided with a normally open end, a normally closed end and a common output end, and the normally open end is connected to the external wiring power input end, and the normally closed end is connected to the internal wiring power input end.
  • the common output is connected to an output loop.
  • the automatic control switch includes a trigger signal And a circuit, wherein the trigger signal circuit is coupled to the controller through an inverter, the controller controlling the turning on and off of the external wiring signal input terminal and the external wiring signal output terminal.
  • the utility model has the advantages that the utility model has the advantages of the wiring type in the external connection type, and can adopt the most suitable and most reasonable connection manner at any time in different application occasions to ensure various types. Demand; and can be adjusted manually or automatically, the switching process is safe and intelligent, fast and convenient.
  • the whole structure is simple, low in cost and easy to operate.
  • Figure 1 is a schematic view of the structure of the present invention.
  • FIG. 2 is a schematic structural view of an application embodiment of the present invention.
  • an LED display that can automatically and manually switch between external and internal wiring, including an LED display, with independent power switches and signal switches inside the LED display, input of the power switch
  • the terminals are respectively connected to the internal wiring power input end and the external wiring power input end, and the output ends thereof are respectively connected to the inner wiring power output end and the external wiring power output end, and the input ends of the signal switcher are respectively connected to the inner wiring signal input end and the external wiring signal input end respectively.
  • the output ends are respectively connected to the inner wiring signal output end and the outer wiring signal output end.
  • the internal wiring power input end and the external wiring power input end are all connected with the magnetic control switch, and the external wiring signal input end and the external wiring signal output end are connected with the automatic control switch, and the magnetic control switch and the automatic control switch are both Connect the manual switch button.
  • the magnetic control switch comprises an iron core, a coil disposed outside the iron core, and an armature, and the armature is provided with an electric shock spring.
  • the armature has a normally open end, a normally closed end and a common output end, and the normally open end is connected to the external wiring power input end.
  • the normally closed end is connected to the internal wiring power input end, and the common output end is connected to the output circuit.
  • the automatic control switch includes a trigger signal circuit and a controller.
  • the trigger signal circuit is connected to the controller through an inverter, and the controller controls the on and off of the external wiring signal input terminal and the external wiring signal output terminal.
  • the inner wiring is a wireless connection; the outer wiring is wired through a wire with an aviation head.
  • Circuit automatic switching part It has two parts: control system (also called input circuit) and controlled system (also called output circuit).
  • control system also called input circuit
  • controlled system also called output circuit
  • the default working state is internal wiring input, and the internal wiring input circuit is in the original conduction state, thus going Control the output loop to achieve normal product operation.
  • the internal wiring input circuit is abnormal, the external wiring input circuit is opened, and the circuit automatically cuts off the connection between the internal wiring input circuit and the output circuit, so that the external wiring input circuit and the output circuit are turned on to achieve normal product operation.
  • the utility model is an "automatic switch” for controlling a large current with a small current, so it plays an automatic adjustment, safety protection, conversion circuit and the like in the circuit.
  • an integrated circuit composed of an iron core, a coil, an armature, a contact spring, and the like. It is divided into normally closed end, normally open end and common output end. Under normal operation, the normally closed terminal is connected to the internal wiring input circuit, the normally open terminal is connected to the external wiring input circuit, and the common output terminal is connected to the output circuit. The default working state is the normally closed terminal control common output terminal, and the circuit works normally.
  • the external wiring input circuit is turned on, so that a certain voltage is applied to both ends of the coil, a certain current flows in the coil, thereby generating an electromagnetic effect, and the armature is attracted by the electromagnetic force attraction.
  • the cabinet has four ports: internal wiring input, external wiring input, internal wiring output, and external wiring output.
  • the default working status is internal wiring input and internal wiring output; when two boxes are used, the first box is transferred to the second.
  • the internal wiring signal of the cabinet is interrupted or needs to be switched to the external wiring state, the external wiring output end of the first box body is connected with the external wiring input end of the second box body by hardware connection, and the system starts to trigger.
  • the signal, the first box output end is switched from the inner wiring output to the external wiring output, and the second box output end is automatically switched to the external wiring input by the internal wiring input, thereby realizing the normal use and switching of the box, and the external wiring When it is in the off state, it will switch to the internal wiring input state.
  • trigger signal circuit In the whole function, there are three parts: trigger signal circuit, system control, and Ethernet port switching; the principle is as follows: First, an automatic pulse trigger circuit is installed inside each product, but in the open state, it does not affect the inner The wiring transmission status is only triggered when a loop is formed. For example, in normal use, the Ethernet signal is serially transferred from the first box to the second box, and the default is the internal wiring transmission state. When the internal wiring transmission is abnormal or needs to be switched to the external wiring state, when the first box external wiring output end and the second box external wiring input end are physically turned on by hardware, the automatic pulse signal circuit forms a loop state, and starts to Automatic triggering is performed at regular intervals and transmitted to the control system through the inverter.
  • the control system transmits a level command to the Ethernet switching port, and the Ethernet switching port receives the command.
  • the output of the first box is automatically switched from the internal wiring to the external wiring output, and the input of the second housing is switched from the internal wiring input to the internal wiring input, so that the external wiring signal is turned on.
  • Manual button switching In order to prevent the automatic switching signal function from being abnormal, the manual button switching function is added. Specifically, the command is issued by manually pressing the button, and after the system control receives the command, the signal is switched. During use, it automatically switches to priority and sets the time point. Only the button is turned off. The command can be issued only after a certain time value is turned on, otherwise there is no command state. At this time, after receiving the signal, the control system transmits the level command to the Ethernet switch port. After the Ethernet switch port receives the command, the output of the first box is automatically switched from the internal wiring to the external wiring output. The input of the two cabinets is switched from the internal wiring input to the internal wiring input, so that the external wiring signal is turned on.
  • the system automatically saves the current working state until the next button signal is received to change the working state.
  • Power supply part By default, input from the internal terminal power supply IN terminal A1, internal wiring power supply OUT terminal B1 and external wiring power supply OUT terminal C2 port have output at the same time, but only the internal wiring power supply OUT terminal B1 port defaults to the next connection and Turn on, enter the wireless transmission mode; when the input terminal A1 input of the internal wiring power supply is abnormal or not used, use the wired connection from the previous external wiring power supply OUT terminal C2 output port to the external wiring power supply IN terminal C1 port input, at this time The input of the A1 port of the IN terminal of the wiring power supply is automatically disconnected, and the output terminals B1 and C2 of the internal wiring power supply have an output and enter the wired input mode.
  • the output terminal of the internal wiring signal has the output of the B2 terminal, the external wiring signal OUT terminal D2 has no output, the external wiring signal IN terminal D1 and the external wiring
  • the D2 port of the signal OUT terminal is disconnected, and the B2 port of the OUT signal of the internal wiring is connected to the next one by default and enters the wireless transmission mode; when the IN2 input of the internal wiring signal is abnormal or not used, the cable is used from the previous one.
  • the output terminal of the wiring signal OUT terminal D2 is connected to the input terminal D1 of the external wiring signal.
  • the upper internal wiring signal OUT terminal B2 is disconnected, the inner wiring signal IN terminal A2 is disconnected, and the previous external wiring signal OUT terminal D2 There is output, the external wiring signal has an input at the D1 port of the IN terminal, and enters the wired mode.
  • the special internal wiring signal IN terminal A2 and the external wiring signal IN terminal D1 input port are simultaneously input, the first input is optimized, and the signal input and output states are interchangeable (bidirectional conduction).
  • the power section and the signal section operate separately and the two do not interfere with each other.
  • the utility model can realize the coexistence of the outer wiring and the inner wiring, and the line can perform automatic/manual switching, and the LED display screen of the utility model can automatically identify and switch the inner and outer lines.
  • the overall structure is simple, low cost, easy to operate, safe and intelligent, fast and convenient.

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Theoretical Computer Science (AREA)
  • Computer Hardware Design (AREA)
  • Remote Monitoring And Control Of Power-Distribution Networks (AREA)
  • Control Of Indicators Other Than Cathode Ray Tubes (AREA)

Abstract

一种可自动和手动切换外接线与内接线的LED显示屏，包括LED显示屏，LED显示屏内部设有相互独立的电源切换器和信号切换器，电源切换器的输入端分别连接内接线电源输入端（A1）和外接线电源输入端（C1），其输出端分别连接内接线电源输出端（B1）和外接线电源输出端（C2），信号切换器的输入端分别连接内接线信号输入端（A2）和外接线信号输入端（D1），其输出端分别连接内接线信号输出端（B2）和外接线信号输出端（D2）。在LED显示屏进行线路切换时无需要使用辅助工具，无需高技能的专业人员，切换过程省时省力，且结构体积小，集成于LED显示屏控制盒内，安全可靠，成本低。

Description

可自动和手动切换外接线与内接线的LED显示屏 技术领域
本实用新型涉及LED电子显示屏领域，具体的说，是涉及一种可自动和手动切换外接线与内接线的LED显示屏。
背景技术
LED显示屏因为具备使用安全、色彩纯正、亮度高、寿命长、播放效果好、安装简易、环保节能等特点，在交通系统、广告系统、体育场馆、金融证券等各大领域得到广泛的应用，随着LED显示屏技术的更加成熟，其应用范围将会更加广泛。
目前市场LED显示屏主流的连接方式是采用外接线的方式，即用线材将单个LED显示屏级联起来；随着市场的发展，内接线连接LED显示屏的方式也开始在市场上占有一席之地，内接线采用的是箱体内置接口，拼接箱体后箱体间不需要线材级联，两者在用户体验，功能操作上各有优势。另有第三种连接方式，即电源和信号连接内部接线和外部接线同时共存，该产品的优势是客户能自由选择两种连接方式，适应不同安装需求。
但是现有的LED显示屏均不能实现显示屏连接方式的切换，当遇到内接线或外接线出现故障等问题的时候，无法及时切换来保证显示屏的正常使用。另外，现有的LED显示屏的连线固定好之后若需要进行更换连接方式则需要将整个LED显示屏进行调整，整个更换的过程复杂，且耗时耗力。
上述缺陷，值得改进。
发明内容
为了克服现有的技术的不足，本实用新型提供一种可自动和手动切换外接线 与内接线的LED显示屏，在LED单元屏进行线路切换时无需要使用辅助工具，无需高技能的专业人员，切换过程省时省力，且结构体积小，集成与LED单元屏控制盒内，安全可靠，成本低。
本实用新型技术方案如下所述：
可自动和手动切换外接线与内接线的LED显示屏，其特征在于，包括LED显示屏，所述LED显示屏内部设有相互独立的电源切换器和信号切换器，所述电源切换器的输入端分别连接内接线电源输入端和外接线电源输入端，其输出端分别连接内接线电源输出端和外接线电源输出端，所述信号切换器的输入端分别连接内接线信号输入端和外接线信号输入端，其输出端分别连接内接线信号输出端和外接线信号输出端；
所述内接线电源输入端和所述外接线电源输入端均与磁控开关连接，所述外接线信号输入端和所述外接线信号输出端均与自动控制开关连接，所述磁控开关与所述自动控制开关均连接手动切换按键。
根据上述方案的本实用新型，其特征在于，所述内接线为无线连接。
根据上述方案的本实用新型，其特征在于，所述外接线为有线连接。
更进一步的，所述外接线为带航空头的线材。
根据上述方案的本实用新型，其特征在于，所述磁控开关包括铁芯、设于所述铁芯外部的线圈以及衔铁，所述衔铁上设有触电簧片。
更进一步的，所述衔铁上设有常开端、常闭端以及公共输出端，所述常开端与所述外接线电源输入端连接，所述常闭端与所述内接线电源输入端连接，所述公共输出端连接输出回路。
根据上述方案的本实用新型，其特征在于，所述自动控制开关包括触发信号 电路和控制器，所述触发信号电路通过反相器连接所述控制器，所述控制器控制所述外接线信号输入端和所述外接线信号输出端的接通和断开。
根据上述方案的本实用新型，其有益效果在于，本实用新型集外接线款内接线款的优势于一身，在不同的应用场合，能随时采用最合适，最合理的连接方式，来保证各种需求；并且可手动或自动进行调节，切换过程安全智能，快捷方便。整个结构简单、成本低、易操作。
附图说明
图1为本实用新型的结构示意图。
图2为本实用新型应用实施例的结构示意图。
具体实施方式
下面结合附图以及实施方式对本实用新型进行进一步的描述：
如图1所示，一种可自动和手动切换外接线与内接线的LED显示屏，包括LED显示屏，LED显示屏内部设有相互独立的电源切换器和信号切换器，电源切换器的输入端分别连接内接线电源输入端和外接线电源输入端，其输出端分别连接内接线电源输出端和外接线电源输出端，信号切换器的输入端分别连接内接线信号输入端和外接线信号输入端，其输出端分别连接内接线信号输出端和外接线信号输出端。
内接线电源输入端和外接线电源输入端均与磁控开关连接，外接线信号输入端和所述外接线信号输出端均与自动控制开关连接，所述磁控开关与所述自动控制开关均连接手动切换按键。
磁控开关包括铁芯、设于铁芯外部的线圈以及衔铁，衔铁上设有触电簧片。衔铁上设有常开端、常闭端以及公共输出端，常开端与外接线电源输入端连接， 常闭端与内接线电源输入端连接，公共输出端连接输出回路。
自动控制开关包括触发信号电路和控制器，触发信号电路通过反相器连接控制器，控制器控制外接线信号输入端和外接线信号输出端的接通和断开。
优选的，内接线为无线连接；外接线通过带航空头的线材进行有线连接。
本实用新型在进行自动电源切换、自动信号切换以及手动按键切换功能的过程中，具体过程为：
1、电路自动切换部分：具有控制系统(又称输入回路)和被控制系统(又称输出回路)两部分组成，默认工作状态为内接线输入，内接线输入回路处于原始导通状态，从而去控制输出回路实现产品正常工作。当内接线输入回路出现异常时，打开外接线输入回路，电路自动切断内接线输入回路与输出回路的联接，让外接线输入回路与输出回路导通，实现产品的正常工作。本实用新型是用较小的电流去控制较大电流的一种“自动开关”，故在电路中起着自动调节、安全保护、转换电路等作用。
一般由铁芯、线圈、衔铁、触点簧片等组成的集成电路。分常闭端，常开端，公共输出端。正常工作下，常闭端接内接线输入电路，常开端接外接线输入电路，公共输出端接输出回路，默认工作状态为常闭端控制公共输出端，电路正常工作。当内接线输入电路发生异常时，外接线输入电路接通，使线圈两端有一定的电压，线圈中就会流过一定的电流，从而产生电磁效应，衔铁就会在电磁力吸引的作用下克服返回弹簧的拉力吸向铁芯，从而带动衔铁的公共输出端与静触点(常开端)吸合，内接线输入(常闭端)自动切断，外接线输入(常开端)与公共输出端导通，产品正常工作。当线圈断电后，电磁的吸力也随之消失，衔铁就会在弹簧的反作用力返回原来的位置，使动触点与原来的静触点(常闭触点)吸合。这样吸 合、释放，从而达到了在电路中的导通、切断的目的。
2、自动信号切换：在使用过程中，以太网信号的传输通常由第一个箱体与第二个箱体…第N个箱体的串行级联。箱体有内接线输入、外接线输入、内接线输出、外接线输出共四个端口，默认工作状态为内接线输入、内接线输出；当其中两个箱体，第一箱体传送到第二箱体的内接线信号中断时或者需要切换到外走线状态时，用硬件接插将第一箱体的外接线输出端与第二箱体的外接线输入端连接起来，此时系统启动触发信号，第一箱体出输端由内接线输出切换至外接线输出，第二箱体输出端由内接线输入自动切换到外接线输入，从而实现箱体的正常使用及切换，当外走线处于断开状态时，会自会切换到内接线输入状态。
在整个功能，有触发信号电路，系统控制，和以太网端口切换三部分组成；其原理如下：首先在每个产品内部都装了自动脉冲触发电路，但为开路状态中，使其不影响内接线传输状态，只有形成回路时，才会发出触发信号。比如：正常使用中，以太网信号由第一箱体串行转入至第二箱体，默认下为内接线传输状态。当内接线传输出现异常或者需要切换到外接线状态时，用硬件将第一箱体外接线输出端与第二箱体外接线输入端物理导通时，自动脉冲信号电路形成回路状态，开始以每隔一定的时候进行自动触发，并通过反相器传输至控制系统，此时，控制系统接到信号后，将发出电平指令传输至以太网切换端口，以太网切换端口接到指令后，将第一箱体输出端由内接线传输自动切换到外接线输出，第二箱体输入端由内接线输入切换至内接线输入，实现外接线信号导通。
3、手动按键切换电：为防止自动切换信号功能出现异常，增加手动按键切换功能，具体是通过人为去触动按键发出指令，系统控制接到该指令后，再去进行信号切换。在使用过程中，自动切换为优先级，并设置时间点，只有按键关开 导通到一定的时间值，才能发出指令，反之则无任何指令状态。此时，控制系统接到信号后，将发出电平指令传输至以太网切换端口，以太网切换端口接到指令后，将第一箱体输出端由内接线传输自动切换到外接线输出，第二箱体输入端由内接线输入切换至内接线输入，实现外接线信号导通。
同时，系统自动保存当前工作状态，直到接收到下次按键信号才会改变工作状态。
在电源和信号的自动控制以及手动控制的具体控制方法是本领域常用的手段，具体电路结构并非本申请要求保护范围，因此此处不再赘述。
如图2所示，两个LED显示屏进行级联的过程中，实现自动和手动切换外接线和内接线的原理为：
电源部分：默认状态下，从内接线电源IN端A1口输入，内接线电源OUT端B1和外接线电源OUT端C2口同时有输出，但只有内接线电源OUT端B1口默认与下一个联接并导通，进入无线传输模式；当内接线电源IN端A1输入异常或不使用时，用有线从上一个的外接线电源OUT端C2输出口连接至外接线电源IN端C1口输入，此时内接线电源IN端A1口输入自动断开，内接线电源OUT端B1和C2有输出，进入有线输入模式。当继续向下接联时，如果选择内接线电源OUT端B1出口，则继续回来无线模式；如果选择外接线电源OUT端C2出口，则回到有线模式；所以，可以根据使用情况做切换。在特殊的内接线电源IN端A1与外接线电源IN端C1输入口同时输入时，外接线电源IN端C1优先状态，且只能从内接线电源IN端A1或外接线电源IN端C1向下方向传输。
信号部分：默认状态下，从内接线信号IN端A2口输入，内接线信号OUT端B2端有输出，外接线信号OUT端D2口无输出，外接线信号IN端D1与外接线 信号OUT端D2口断开，内接线信号OUT端B2口默认与下一个联接并导通，进入无线传输模式；当内接线信号IN端A2输入异常或不使用时，用有线从上一个的外接线信号OUT端D2输出口连接至外接线信号IN端D1口输入，此时上一个内接线信号OUT端B2口断开，内接线信号IN端A2口断开，上一个外接线信号OUT端D2有输出，外接线信号IN端D1口有输入，进入有线模式。在特殊的内接线信号IN端A2与外接线信号IN端D1输入口同时输入时，以先输入者为优化状态；信号输入输出状态可互换(双向导通)。
电源部分和信号部分是独立分别工作，两者不会相互干扰。
本实用新型可以实现外接线与内接线共存且线路能进行自动/手动切换，并且本实用新型的LED显示屏能自动识别并切换内外线路。整体结构简单，成本低，易操作，安全智能，快捷方便。
应当理解的是，对本领域普通技术人员来说，可以根据上述说明加以改进或变换，而所有这些改进和变换都应属于本实用新型所附权利要求的保护范围。
上面结合附图对本实用新型专利进行了示例性的描述，显然本实用新型专利的实现并不受上述方式的限制，只要采用了本实用新型专利的方法构思和技术方案进行的各种改进，或未经改进将本实用新型专利的构思和技术方案直接应用于其它场合的，均在本实用新型的保护范围内。

Claims (7)

  1. 可自动和手动切换外接线与内接线的LED显示屏，其特征在于，包括LED显示屏，所述LED显示屏内部设有相互独立的电源切换器和信号切换器，所述电源切换器的输入端分别连接内接线电源输入端和外接线电源输入端，其输出端分别连接内接线电源输出端和外接线电源输出端，所述信号切换器的输入端分别连接内接线信号输入端和外接线信号输入端，其输出端分别连接内接线信号输出端和外接线信号输出端；
    所述内接线电源输入端和所述外接线电源输入端均与磁控开关连接，所述外接线信号输入端和所述外接线信号输出端均与自动控制开关连接，所述磁控开关与所述自动控制开关均连接手动切换按键。
  2. 根据权利要求1所述的可自动和手动切换外接线与内接线的LED显示屏，其特征在于，所述内接线为无线连接。
  3. 根据权利要求1所述的可自动和手动切换外接线与内接线的LED显示屏，其特征在于，所述外接线为有线连接。
  4. 根据权利要求3所述的可自动和手动切换外接线与内接线的LED显示屏，其特征在于，所述外接线为带航空头的线材。
  5. 根据权利要求1所述的可自动和手动切换外接线与内接线的LED显示屏，其特征在于，所述磁控开关包括铁芯、设于所述铁芯外部的线圈以及衔铁，所述衔铁上设有触电簧片。
  6. 根据权利要求5所述的可自动和手动切换外接线与内接线的LED显示屏，其特征在于，所述衔铁上设有常开端、常闭端以及公共输出端，所述常开端与所述外接线电源输入端连接，所述常闭端与所述内接线电源输入端连接，所述公共输出端连接输出回路。
  7. 根据权利要求1所述的可自动和手动切换外接线与内接线的LED显示屏，其特征在于，所述自动控制开关包括触发信号电路和控制器，所述触发信号电路通过反相器连接所述控制器，所述控制器控制所述外接线信号输入端和所述外接线信号输出端的接通和断开。
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Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20140184658A1 (en) * 2012-12-27 2014-07-03 Hon Hai Precision Industry Co., Ltd. Display device and display system including a plurality of display devices and electronic device using same
CN104680946A (zh) * 2015-02-12 2015-06-03 刘剑冰 一种led显示屏的相互拼接线路结构以及拼接走线方法
CN205038931U (zh) * 2015-10-27 2016-02-17 厦门市华软科技有限公司 Led显示屏
CN205405486U (zh) * 2015-12-28 2016-07-27 重庆橙壹科技有限公司 一种多种连接方式的多屏显示器接口
CN205541710U (zh) * 2016-02-04 2016-08-31 刘剑冰 一种电源信号自由切换的led显示屏
CN205541817U (zh) * 2016-02-04 2016-08-31 刘剑冰 一种电源信号自由切换开关
CN206194312U (zh) * 2016-10-25 2017-05-24 深圳市彩易达光电有限公司 可自动和手动切换外接线与内接线的led显示屏

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20140184658A1 (en) * 2012-12-27 2014-07-03 Hon Hai Precision Industry Co., Ltd. Display device and display system including a plurality of display devices and electronic device using same
CN104680946A (zh) * 2015-02-12 2015-06-03 刘剑冰 一种led显示屏的相互拼接线路结构以及拼接走线方法
CN205038931U (zh) * 2015-10-27 2016-02-17 厦门市华软科技有限公司 Led显示屏
CN205405486U (zh) * 2015-12-28 2016-07-27 重庆橙壹科技有限公司 一种多种连接方式的多屏显示器接口
CN205541710U (zh) * 2016-02-04 2016-08-31 刘剑冰 一种电源信号自由切换的led显示屏
CN205541817U (zh) * 2016-02-04 2016-08-31 刘剑冰 一种电源信号自由切换开关
CN206194312U (zh) * 2016-10-25 2017-05-24 深圳市彩易达光电有限公司 可自动和手动切换外接线与内接线的led显示屏

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