CN209015697U - A kind of device can control LED display multi-screen and single-screen is shown - Google Patents

Abstract

A kind of device can control LED display multi-screen and single-screen is shown, including four LED displays, vision signal split screen device equipment, Switching Power Supply, time circuit, circuit for remotely controlling, light-operated circuit, also there is change-over switch, split screen circuit, four LED displays, Switching Power Supply, time circuit, circuit for remotely controlling, light-operated circuit, change-over switch, connect between split screen circuit vision signal split screen device equipment through conducting wire.The utility model user can be selected as needed, and special time period, which is shown, just can be selected time circuit control when promotional region flow of the people is more；Daytime, few, the evening flow of the people of flow of the people can mostly be controlled using light-operated circuit；If flow of the people is unstable, user can also use circuit for remotely controlling non-contact control whenever and wherever possible as needed；User at the scene can also be by manually controlling.The utility model function is more, easy to use, saves electric energy, extends the LED display service life.Based on application prospect above-mentioned, that the utility model has had.

Description

A kind of device can control LED display multi-screen and single-screen is shown

Technical field

The utility model relates to LED display application field, especially one kind can control LED display multi-screen and single screen The device of curtain display.

Background technique

The terminal that LED display is shown as video is not only applied television reception video is shown, computer video is shown Equal fields, but also in market, exhibition or public domain (such as municipal information publicity, government affair centre information propagating, Hospital medical Information propagating etc.) it is widely used as the Media Usage of advertising.In LED display as places such as market, exhibition, public domains Deng as public media in use, publicity needs in order to reach, can generally be existed using four or so LED display combinations Video information is shown together as LED group screen；When work, vision signal split screen device equipment is by the vision signal of input (such as PC Vision signal, video disc player and vision signal of mobile hard disk input of machine input etc., vision signal split screen device equipment input terminal If vision signal directly input LED display signal port, due to the vision signal of, vision signal split screen device equipment input Do not carry out split screen also, LED display can show complete image frame) carry out split screen, then after split screen four road signals respectively into Enter four LED displays to be shown, the video content that four LED displays are shown is combined into complete image and is shown.

In practical applications, market, exhibition or public domain are not that constantly flow of the people is all very big, as the day or night stream of people Few period is measured, the people for watching video display is few, the distance of people close to LED display is close, in this case, actually uses One LED display progress video, which is shown, can also reach actual needs, this moment if regarded using four LED display group screens Frequency shows the waste that will cause electric energy and more LED displays are in running order simultaneously will lead to more LED displays Service life is reduced.

It is by artificial hand if user needs a LED display to carry out video display in existing technology By vision signal split screen device device signal input terminal port and wherein, the signal input port of a LED display uses video to section Plug wire connection when needing to carry out more LED display group screens progress video displays, and is pulled up video using artificial means and is inserted Line, then by the signal input part of four signal output ends of vision signal split screen device equipment and four LED displays using view The connection of frequency plug wire.Due to needing manual operation in conversion process, very big inconvenience is brought to user.

Utility model content

In order to overcome in existing LED group screen application, need to carry out more LED displays and separate unit LED display display view , can only be using manually the drawbacks of making troubles to user be operated when frequency information is converted, the utility model, which provides, to be had Time circuit, light-operated circuit, circuit for remotely controlling, change-over switch, user can according to their needs, not only can be in needs Period carries out more LED displays and the display conversion of separate unit LED display video, lacks period and evening in flow of the people on daytime Flow of the people more periods carry out more LED displays and the display conversion of separate unit LED display video, and user can also be according to need It wants, the APP technology of electrical equipment working method is controlled by the mobile phone of existing maturation, carries out more LED displays and list at any time The display conversion of platform LED display video, and can directly operate change-over switch and carry out more LED displays and separate unit LED display Video display conversion, it is more thus to reach function, easy to use, one kind for saving electric energy, extending LED display service life It can control LED display multi-screen and the device that single-screen is shown.

The technical scheme adopted by the utility model to solve the technical problem is as follows:

A kind of device can control LED display multi-screen and single-screen is shown, including four LED displays, video letter Number split screen device equipment, Switching Power Supply, time circuit, circuit for remotely controlling, light-operated circuit, the signal of vision signal split screen device equipment Input terminal is connected with video device video output end through video line, four LED displays, video equipment, vision signal split screen device Equipment, Switching Power Supply power input connected with 220V AC power source through conducting wire, it is characterised in that also have change-over switch, point Shield circuit, Switching Power Supply, time circuit, light-operated circuit, circuit for remotely controlling, change-over switch, split screen circuit are mounted on circuit board On, circuit board is mounted in subassembly wrapper, and the power output end anode of Switching Power Supply is connected with change-over switch one end through conducting wire, switch The power output end positive and negative polarities of power supply respectively with time circuit, light-operated circuit, circuit for remotely controlling positive and negative polarities power input End is connected through conducting wire respectively, and time circuit, light-operated circuit, the cathode power supply output end of circuit for remotely controlling and change-over switch are another One end is connected with the cathode power supply input terminal of split screen circuit through conducting wire, the negative power supply output end of Switching Power Supply and split screen circuit Negative power supply input terminal, time circuit negative power supply output end, light-operated circuit negative power supply output end, circuit for remotely controlling cathode Power output end is connected through conducting wire, and four road signal output ends of vision signal split screen device equipment are believed with four tunnels of split screen circuit respectively Number input terminal is connected through video line, the video signal input terminal of vision signal split screen device equipment and the 5th road signal of split screen circuit Input terminal is connected through video line, the 5th road signal output end and four LED displays of split screen circuit wherein one signal it is defeated Inbound port is connected through video line, the letter of four tunnel video signal output and first, second, third and fourth LED display of frequency dividing circuit Number input port is connected through video line.

The Switching Power Supply is that alternating current 220V turns direct-current switch power supply module.

The time circuit is time controller.

The light-operated circuit is light-operated switch, its own matched photodiode light-receiving surface is located at subassembly wrapper front lower ends On the outside of aperture.

The circuit for remotely controlling is remote controllers.

The change-over switch is one and stirs power switch.

The split screen circuit includes five relays, and the negative power supply input terminal of five relays connects through circuit board wiring Connect, the cathode power supply input terminal of five relays is connected through circuit board wiring, two normally opened contact ends of the 5th relay and First, second, only, in the 4th relay wherein one two normally opened contact end connects third through video line.

The time circuit, circuit for remotely controlling, the cathode power supply output end of light-operated circuit and Switching Power Supply anode electricity A power switch is respectively in series between source output terminal, the operation handle of three power switches is located at subassembly wrapper upper end Two, outside three, four apertures.

The utility model beneficial effect is: showing if the utility model user needs to control more LED in the specific period Display screen and the display conversion of separate unit LED display video, then the matched power switch of time circuit is turned on, in this way, using In the period of person's setting, through under split screen circuit collective effect, more LED displays and separate unit LED display will automatically into The display conversion of row video.If user needs to control more LED displays and separate unit LED display respectively in day and night Video display conversion, then the matched power switch of light-operated circuit is turned on, in this way, in day and night, it is total through split screen circuit Under same-action, more LED displays and separate unit LED display will carry out video display conversion automatically.If user needs More LED displays and the display conversion of separate unit LED display video are controlled through mobile phone any time section in distal end or vicinity, that The matched power switch of circuit for remotely controlling is turned on, in this way, user can be at any time through under split screen circuit collective effect More LED displays are controlled everywhere and separate unit LED display carries out video display conversion.In actual use, user can be with Change-over switch is directly opened at the scene, controls more LED displays and separate unit LED display carries out video display conversion.It is above-mentioned Four kinds of modes, user can be selected as needed, and special time period, which is shown, just can be selected the time when promotional region flow of the people is more Circuit control；Daytime flow of the people it is few, can be controlled using light-operated circuit when evening flow of the people is more；If flow of the people is unstable Fixed, user can also use circuit for remotely controlling non-contact control whenever and wherever possible as needed；User can also lead at the scene It crosses and manually controls.The utility model function is more, easy to use, saves electric energy, extends LED display service life.Based on above-mentioned, So the application prospect that the utility model has had.

Detailed description of the invention

The utility model is described further below in conjunction with drawings and examples.

Fig. 1 is the utility model structure diagram.

Fig. 2 is the utility model circuit diagram.

Specific embodiment

Shown in Fig. 1, a kind of device can control LED display multi-screen and single-screen is shown, including four LED are shown Shield 1, vision signal split screen device equipment 2, Switching Power Supply 3, time circuit 4, circuit for remotely controlling 5, light-operated circuit 6, vision signal Split screen device equipment 2 signal input part and video device video output end (such as PC machine output vision signal, video disc player and shifting The vision signal etc. of dynamic hard disk output) it is connected through video line, four LED displays 1, video equipment, vision signal split screen device Equipment 2, Switching Power Supply 3 power input connected with 220V AC power source through conducting wire, also have change-over switch 7, split screen circuit 8, Switching Power Supply 3, time circuit 4, light-operated circuit 6, circuit for remotely controlling 5, change-over switch 7, split screen circuit 8 are mounted on circuit board On, circuit board and vision signal split screen device equipment 2 are mounted in subassembly wrapper 9, and subassembly wrapper 9 is mounted near four LED displays 1 Metope on etc..The display screen of time circuit time controller finished product 4, operation button are located at subassembly wrapper front center opening 9- 1 outside, the time of control power output end out-put supply is set convenient for users to operation button.Light-operated circuit 6 itself is matched Photodiode 6-1 light-receiving surface is located on the outside of the aperture of subassembly wrapper front lower ends, in favor of the light source outside detection.Change-over switch 7 It is one and commonly stirs power switch, the operation handle for stirring power switch 7 is located at outside the aperture 9-2 of subassembly wrapper upper end first. Time circuit 4, circuit for remotely controlling 5, the cathode power supply output end of light-operated circuit 6 and Switching Power Supply 3 cathode power supply output end Between be respectively in series with a power switch, the operation handle of three power switches be located at subassembly wrapper upper end second and third, four Outside aperture 9-3,9-4,9-5.

Shown in Fig. 2, vision signal split screen device equipment U3 is the video of the grand Electronics Co., Ltd.'s production of Shenzhen's Zhuo asterism Signal split screen device finished product, have a video signal input terminal mouth 9 and 10 ports, four sub-video signal output ports 1 and 2,3 and the port of 4,5 and 6,7 and 8, Switching Power Supply U1 be that the alternating current 220V of the bright latitude of brand turns 12V DC switch power module finished product, There are two power input 1 and 2 feet, two power output ends 3 and 4 feet for its tool.Time circuit is the positive safe, model of brand CHNT/ The time controller finished product of KG316T, operating voltage direct current 12V, there are two power input 1 and 2 feet, two control electricity for tool Source output terminal 3 and 4 feet, by the corresponding operating key of operating time controller finished product when use, may be set in needs when Between two control power output end out-put supplies of section, before the display screen of time controller finished product, operation button are located at subassembly wrapper It holds on the outside of intermediate openings, the time of control power output end out-put supply is set convenient for users to operation button.Light-operated circuit U5 It is the light-operated switch finished product of brand China, model HX/12V, there are two 12V power input 1 and 2 feet, two power supply outputs for tool 3 and 4 feet are held, its own matched photodiode T light-receiving surface is located on the outside of the aperture of subassembly wrapper front lower ends, outer in favor of detecting The light source in portion.Circuit for remotely controlling U4 is the remote controllers finished product of brand JB, model JB20, and operating voltage 12V is long-range to control There is SIM card, remote controllers finished product U4 has two-way power output end 3 and 4 feet, user when use inside device finished product U4 processed The APP installed by existing mature technology, mobile phone, user can export in remote control remote controllers finished product two-way power supply End output or not out-put supply.Change-over switch K1 is one and commonly stirs power switch, stirs the operation handle of power switch K1 Outside the aperture of subassembly wrapper upper end first.Split screen circuit includes five relay J1, J2, J3, J4, J, five relay J1, The negative power supply input terminal of J2, J3, J4, J are connected through circuit board wiring, the cathode power supply of five relays J1, J2, J3, J4, J Input terminal is connected through circuit board wiring, two normally opened contact ends of the 5th relay J and the 4th relay J4 two it is normally opened Tip side is connected through video line.Time circuit U2, circuit for remotely controlling U4, light-operated circuit U5 1 foot of cathode power supply input terminal and Power switch K2, K3, a K4, three power switches K2, K3, K4 are respectively in series between the cathode power supply output end of Switching Power Supply Operation handle be located at subassembly wrapper upper end second and third, outside four apertures.

Shown in Fig. 2, the signal input part 9 of vision signal split screen device equipment U3 and 10 ports and video device video are exported End (such as vision signal, video disc player and vision signal of mobile hard disk output of PC machine output etc.) connects, four through video line Platform LED display screen P1, P2, P3, P4 power input, video equipment power input, vision signal split screen device equipment U3 The power input (1 and 2 foot) of power input 11 and 12 feet, Switching Power Supply U1 is connected with 220V AC power source through conducting wire, is opened Positive 3 feet of the power output end of powered-down source U1 are connected with change-over switch one end K1, the power output end of Switching Power Supply U1 positive and negative two Pole 3 and 4 feet respectively with the time circuit U2 positive and negative polarities power input power switch K2 other end and 2 feet, light-operated circuit U5 just Negative the two poles of the earth power input power switch K4 other end and 2 feet, circuit for remotely controlling U4 positive and negative polarities power input power supply are opened It closes the K3 other end and 2 feet is connected through conducting wire respectively, 3 foot of time circuit U2 cathode power supply output end, light-operated circuit U5 cathode power supply The relay of 3 foot of output end, 3 foot of circuit for remotely controlling U4 cathode power supply output end and the change-over switch K1 other end and split screen circuit Device J1, J2, J3, J4, J cathode power supply input terminal is connected through conducting wire, 4 foot of negative power supply output end and the split screen electricity of Switching Power Supply U1 Relay J1, J2, J3, J4, J negative power supply input terminal, 4 foot of time circuit U2 negative power supply output end, light-operated circuit U5 on road 4 foot of negative power supply output end, 5 foot of circuit for remotely controlling U4 negative power supply output end are connected through conducting wire, and vision signal split screen device is set The four road signal output ends 1 of standby U3 and the port of 2,3 and 4,5 and 6,7 and 8 respectively with four road signal input part relays of split screen circuit Two control tip sides of device J1, J2, J3, J4 are connected through video line, the vision signal input of vision signal split screen device equipment U3 9 and 10 ports of end are connected with two control tip sides of the 5th road signal input part relay J of split screen circuit through video line, split screen The signal input port at the 5th road signal output end relay J two normally-closed contact ends and the 4th LED display P4 of circuit It is connected through video line, four tunnel two normally opened contact ends video signal output relay J1, J2, J3, J4 of frequency dividing circuit and four The signal input port of platform LED display P1, P2, P3, P4 are connected through video line.

Shown in Fig. 2,220V AC power source access switch power supply U1, vision signal split screen device equipment U3, four LED are shown Shield P1, P2, P3, P4 power input after, Switching Power Supply U1, vision signal split screen device equipment U3, four LED display P1, P2, P3, P4 are in work once electrified state.After Switching Power Supply U1 work once electrified, 3 feet export stable 12V DC power supply entry time Circuit U 2, circuit for remotely controlling U4, one end power switch K2, K3, K4 of light-operated circuit U5 and the one end change-over switch K1.Split screen In circuit and time circuit: if the present embodiment user need the specific period control four LED display P1, P2, P3, P4 and the display conversion of separate unit LED display video, then turning on the matched power switch K2 of time circuit, then, time 2 work once electrified of circuit U；After time circuit U2 work once electrified, user is electric by itself the feature operation time of time circuit U2 In the period out-put supply of needs, (inside time circuit U2 has charging electricity to respective keys, the setting time circuit U 2 of road U2 Pond, after setting the time, as long as even if nor affecting on the number of its inner setting without secondary adjustment outside 12V power outage According to), the present embodiment sets 8 points to 12 points at night of every night, the control power output end 3 of time circuit U2 and 4 feet output electricity Source, after control power output ends 3 and 4 foot out-put supplies, the cathode power supply of 3 feet output can be into 8 points to 12 periods in the per evening Enter relay J1, J2, J3, J4, J cathode power supply input terminal, then, relay J1, J2, J3, J4 obtain two control of electric actuation Tip side and two normally opened contact ends are respectively closed, and relay J obtains two control tip side of electric actuation and two normally-closed contacts End is each turned off, due to the four road signal output ends 1 of vision signal split screen device equipment U3 and the port of 2,3 and 4,5 and 6,7 and 8 point It is not connected with two control tip sides of relay J1, J2, J3, J4 through video line, two normally opened touchings of relay J1, J2, J3, J4 Point end is connected with the signal input port of four LED displays P1, P2, P3, P4 through video line respectively, so, relay J1, J2, J3, J4 obtain it is electric be attracted two control tip side and after two normally opened contact ends are respectively closed, vision signal split screen device equipment The four road signal output ends 1 of U3 and the split screen vision signal of the port of 2,3 and 4,5 and 6,7 and 8 output can respectively enter four LED The signal input port of display screen P1, P2, P3, P4, four LED displays P1, P2, P3, P4 by the sub-video signal of input into Display is combined into complete picture to row respectively, to achieve the purpose that four LED display group screens show vision signal；Daily At night except 8 points to 12 other times section, the control power output end 3 and 4 feet of time circuit U2 not out-put supply, then, Relay J1, J2, J3, J4 power loss are no longer attracted two control tip side and two normally opened contact ends are each turned off, relay J Power loss is no longer attracted two control tip side and two normally-closed contact ends are respectively turned on, due to relay J1, J2, J3, J4 two A normally opened contact end is connected with the signal input port of four LED displays P1, P2, P3, P4 through video line, so, relay After two control tip side of J1, J2, J3, J4 power loss and two normally opened contact ends are each turned off, vision signal split screen device equipment The four road signal output ends 1 of U3 and the split screen vision signal of the port of 2,3 and 4,5 and 6,7 and 8 output are not further into four LED The signal input port of display screen P1, P2, P3, P4, four LED displays P1, P2, P3, P4 divide video to believe without input Number, also with regard to the display of no longer progress vision signal；Video signal input terminal 9 and 10 ends due to vision signal split screen device equipment U3 Mouth is connected with two control tip sides of the 5th road signal input part relay J of split screen circuit through video line, and relay J two is often Closed contact end is connected with the signal input port of the 4th LED display P4 through video line, so, relay J power loss two Control tip side and after two normally-closed contact ends are respectively closed, the video signal input terminal 9 of vision signal split screen device equipment U3 and The complete video signal of 10 inputs can enter the signal input port of the 4th LED display P4, and the 4th LED display P4 will The complete video picture signal of input is shown；By above-mentioned, the present embodiment can need specific period control more Platform LED display and the display conversion of separate unit LED display video.

Shown in Fig. 2, in split screen circuit and light-operated circuit: if the present embodiment user needs to distinguish in day and night Four LED displays P1, P2, P3, P4 and the display conversion of separate unit LED display video are controlled, is matched then turning on light-operated circuit The power switch K4 of set, after light-operated circuit U5 work once electrified, at its matched photo resistance T and internal circuit effect, at night The intensity of illumination that period photo resistance T is subject to is low, under the effect of light-operated circuit U5 internal circuit, 3 and 4 feet of light-operated circuit U5 The cathode power supply of meeting out-put supply, the output of 3 feet enters relay J1, J2, J3, J4, J cathode power supply input terminal, then, relay J1, J2, J3, J4 obtain it is electric be attracted two control tip side and two normally opened contact ends be respectively closed, relay J obtain it is electric be attracted its Two control tip sides and two normally-closed contact ends are each turned off, and relay J1, J2, J3, J4 obtain two control touching of electric actuation After point end and two normally opened contact ends are respectively closed, the four road signal output ends 1 and 2,3 and 4 of vision signal split screen device equipment U3, The split screen vision signal of 5 and 6,7 and 8 ports output can respectively enter the signal input part of four LED displays P1, P2, P3, P4 Mouthful, four LED displays P1, P2, P3, P4 are shown the sub-video signal of input respectively is combined into complete picture, from And achievees the purpose that four LED display group screens and show vision signal；On daytime, light-operated circuit U5 is in its matched photo resistance Under T and internal circuit effect, 3 feet no longer out-put supply enters relay J1, J2, J3, J4, J cathode power supply input terminal, then, Relay J1, J2, J3, J4 power loss are no longer attracted two control tip side and two normally opened contact ends are each turned off, relay J Power loss is no longer attracted two control tip side and two normally-closed contact ends are respectively turned on, and the four of vision signal split screen device equipment U3 Road signal output end 1 and the split screen vision signal of the port of 2,3 and 4,5 and 6,7 and 8 output are not further into four LED displays The signal input port of P1, P2, P3, P4, four LED displays P1, P2, P3, P4 without input sub-video signal, also No longer carry out the display of vision signal；After two control tip side of relay J power loss and two normally-closed contact ends are respectively closed, It is aobvious that the complete video signal that the video signal input terminal 9 and 10 of vision signal split screen device equipment U3 inputs can enter the 4th LED The signal input port of display screen P4, the 4th LED display P4 show the complete video picture signal of input；By upper It states, the present embodiment user can control four LED displays P1, P2, P3, P4 and list in day and night as needed respectively The display conversion of platform LED display video.

Shown in Fig. 2, in split screen circuit and circuit for remotely controlling: if the present embodiment user need distal end or near Place controls more LED displays and the display conversion of separate unit LED display video through mobile phone any time section, then turning on long-range The matched power switch K3 of control circuit, after circuit for remotely controlling U4 work once electrified, operator passes through existing maturation skill in distal end The APP that art, mobile phone are installed sends out first via closure signal control instruction, and control instruction passes to remotely through mobile radio network After control circuit U4, circuit for remotely controlling U4 receive the wireless closure signal of the first via, 3 and 5 feet understand out-put supply, and 3 feet are defeated Cathode power supply out enters relay J1, J2, J3, J4, J cathode power supply input terminal, and then, relay J1, J2, J3, J4 obtain electric It is attracted two control tip side and two normally opened contact ends is respectively closed, relay J obtains two control tip side of electric actuation It is each turned off with two normally-closed contact ends, relay J1, J2, J3, J4 obtain two control tip side of electric actuation and two normally opened After tip side is respectively closed, the four road signal output ends 1 of vision signal split screen device equipment U3 and the port of 2,3 and 4,5 and 6,7 and 8 The split screen vision signal of output can respectively enter the signal input port of four LED displays P1, P2, P3, P4, and four LED are aobvious Display screen P1, P2, P3, P4 are shown the sub-video signal of input respectively is combined into complete picture, to reach four LED Display screen group screen shows the purpose of vision signal；When user, which needs to close four LED display group screens, shows vision signal, Operator sends out the wireless cut-off signal control instruction of the first via by the APP that mobile phone is installed in distal end, and control instruction is through wireless Mobile network passes to circuit for remotely controlling U4, after circuit for remotely controlling U4 receives the wireless cut-off signal of the first via, 3 and 5 Foot can stop out-put supply, and then, relay J1, J2, J3, J4 power loss are no longer attracted two control tip side and two normally opened Tip side is each turned off, and relay J power loss is no longer attracted two control tip side and two normally-closed contact ends are respectively turned on, depending on The four road signal output ends 1 of frequency signal split screen device equipment U3 and the split screen vision signal of the port of 2,3 and 4,5 and 6,7 and 8 output are not Can enter back into the signal input port of four LED displays P1, P2, P3, P4, four LED displays P1, P2, P3, P4 without The sub-video signal of input, also with regard to the display of no longer progress vision signal；Two control tip side and two of relay J power loss After normally-closed contact end is respectively closed, the complete video of the input of video signal input terminal 9 and 10 of vision signal split screen device equipment U3 Signal can enter the signal input port of the 4th LED display P4, and the 4th LED display P4 draws the complete video of input Face signal is shown；By above-mentioned, the present embodiment user can be as needed when distal end or vicinity be any through mobile phone Between section control more LED displays and separate unit LED display video display conversion.

Shown in Fig. 2, in split screen circuit and change-over switch K1: user can directly open change-over switch K1 as needed Afterwards, the positive pole of the 3 feet output of Switching Power Supply U1 enters relay J1, J2, J3, J4, J cathode power supply input terminal, then, after Electric appliance J1, J2, J3, J4 obtain two control tip side of electric actuation and two normally opened contact ends are respectively closed, and relay J obtains electric suction It closes two control tip side and two normally-closed contact ends is each turned off, relay J1, J2, J3, J4 obtain two control of electric actuation After tip side processed and two normally opened contact ends are respectively closed, the four road signal output ends 1 and 2,3 of vision signal split screen device equipment U3 And the port of 4,5 and 6,7 and 8 output split screen vision signal can respectively enter four LED displays P1, P2, P3, P4 signal it is defeated Inbound port, four LED displays P1, P2, P3, P4 are shown the sub-video signal of input respectively is combined into complete picture Face, to achieve the purpose that four LED display group screens show vision signal；When user needs to close four LED displays When group screen shows vision signal, operator closes change-over switch K1, then, the power supply of 3 feet of Switching Power Supply U1 output no longer into Enter relay J1, J2, J3, J4, J cathode power supply input terminal, relay J1, J2, J3, J4 power loss are no longer attracted two control touching Point end and two normally opened contact ends are each turned off, and relay J power loss is no longer attracted two control tip side and two normally closed touchings Point end is respectively turned on, the four road signal output ends 1 of vision signal split screen device equipment U3 and the output of the port of 2,3 and 4,5 and 6,7 and 8 Signal input port of the split screen vision signal not further into four LED displays P1, P2, P3, P4, four LED displays P1, P2, P3, P4 without input sub-video signal, also with regard to no longer carry out vision signal display；Relay J power loss its two After a control tip side and two normally-closed contact ends are respectively closed, the video signal input terminal 9 of vision signal split screen device equipment U3 And 10 input complete video signal can enter the 4th LED display P4 signal input port, the 4th LED display P4 The complete video picture signal of input is shown；By above-mentioned, the present embodiment user can be straight at the scene as needed It connects and opens or closes change-over switch, control more LED displays and the display conversion of separate unit LED display video.

Shown in Fig. 2, four kinds of modes of the present embodiment, user be can be selected as needed, and special time period shows publicity Time circuit U2 control mostly just can be selected in region flow of the people；Daytime, few, the evening flow of the people of flow of the people can mostly use light-operated electricity Road U5 is controlled；If flow of the people is unstable, user can also use circuit for remotely controlling U4 whenever and wherever possible as needed Non-contact control；User passes through change-over switch K1 at the scene can also be through manually controlling.The utility model function is more, easy to use, section It saved electric energy, extended LED display service life.Based on above-mentioned, so the application prospect that the utility model has had.The present embodiment In, it, can be any one in two normally-closed contact ends of the 5th relay J and relay J1, J2, J3, J4 when single screen is shown Two normally opened contact ends of relay are connected through video line, in this way, can be aobvious using four LED as needed in actual use Any progress complete video picture exhibition in display screen P1, P2, P3, P4.Relay J1, J2, J3, J4, J are brand pines Happy, model DC12V miniature relay, there are two power inputs, two control tip sides, two normally-closed contact ends, two for tool A normally opened contact end.

The advantages of basic principles and main features and the utility model of the utility model have been shown and described above, for For those skilled in the art, it is clear that the utility model is limited to the details of above-mentioned exemplary embodiment, and without departing substantially from this reality In the case where with novel spirit or essential attributes, the utility model can be realized in other specific forms.Therefore, no matter from From the point of view of which point, the present embodiments are to be considered as illustrative and not restrictive, and the scope of the utility model is by appended Claim rather than above description limit, it is intended that the institute that will be fallen within the meaning and scope of the equivalent elements of the claims It changes and is embraced therein.Right involved in should not treating any reference in the claims as limiting is wanted It asks.

In addition, it should be understood that although this specification is described in terms of embodiments, but not every embodiment is only wrapped Containing an independent technical solution, this description of the specification is merely for the sake of clarity, and those skilled in the art should Using specification as an entirety, the technical solutions in the various embodiments may also be suitably combined, forms those skilled in the art The other embodiments being understood that.

Claims (8)

1. a kind of device that can control LED display multi-screen and single-screen is shown, including four LED displays, vision signals The signal of split screen device equipment, Switching Power Supply, time circuit, circuit for remotely controlling, light-operated circuit, vision signal split screen device equipment is defeated Enter end and connected with video device video output end through video line, four LED displays, video equipment, vision signal split screen device are set Standby, Switching Power Supply power input is connected with 220V AC power source through conducting wire, it is characterised in that also has change-over switch, split screen Circuit, Switching Power Supply, time circuit, light-operated circuit, circuit for remotely controlling, change-over switch, split screen circuit are installed on circuit boards, Circuit board is mounted in subassembly wrapper, and the power output end anode of Switching Power Supply is connected with change-over switch one end through conducting wire, switch electricity The power output end positive and negative polarities in source respectively with time circuit, light-operated circuit, circuit for remotely controlling positive and negative polarities power input It is connected respectively through conducting wire, time circuit, light-operated circuit, the cathode power supply output end of circuit for remotely controlling and change-over switch are another End is connected with the cathode power supply input terminal of split screen circuit through conducting wire, the negative power supply output end of Switching Power Supply and bearing for split screen circuit Pole power input, time circuit negative power supply output end, light-operated circuit negative power supply output end, circuit for remotely controlling negative electricity Source output terminal is connected through conducting wire, four road signal output ends of vision signal split screen device equipment respectively with four road signals of split screen circuit Input terminal is connected through video line, and the video signal input terminal of vision signal split screen device equipment and the 5th road signal of split screen circuit are defeated Enter end connected through video line, the 5th road signal output end and four LED displays of split screen circuit wherein one signal input Port is connected through video line, the signal of four tunnel video signal output and first, second, third and fourth LED display of frequency dividing circuit Input port is connected through video line.

2. a kind of device that can control LED display multi-screen and single-screen is shown according to claim 1, feature exist It is that alternating current 220V turns direct-current switch power supply module in Switching Power Supply.

3. a kind of device that can control LED display multi-screen and single-screen is shown according to claim 1, feature exist In time circuit be time controller.

4. a kind of device that can control LED display multi-screen and single-screen is shown according to claim 1, feature exist It is light-operated switch in light-operated circuit, its own matched photodiode light-receiving surface is located on the outside of the aperture of subassembly wrapper front lower ends.

5. a kind of device that can control LED display multi-screen and single-screen is shown according to claim 1, feature exist In circuit for remotely controlling be remote controllers.

6. a kind of device that can control LED display multi-screen and single-screen is shown according to claim 1, feature exist It is one in change-over switch and stirs power switch.

7. a kind of device that can control LED display multi-screen and single-screen is shown according to claim 1, feature exist It include five relays in split screen circuit, the negative power supply input terminal of five relays is connected through circuit board wiring, five relays The cathode power supply input terminal of device is connected through circuit board wiring, two normally opened contact ends of the 5th relay and first, second Only, only, in the 4th relay wherein one two normally opened contact end connects third through video line.

8. a kind of device that can control LED display multi-screen and single-screen is shown according to claim 1, feature exist In time circuit, circuit for remotely controlling, the cathode power supply output end of light-operated circuit and Switching Power Supply cathode power supply output end it Between be respectively in series with a power switch, the operation handle of three power switches be located at subassembly wrapper upper end second and third, four open Outside hole.