An LED dynamic display device and control method

Abstract

The present invention discloses an LED dynamic display device and a control method, wherein one LED dynamic display device comprises: a housing, a light emitter, a film screen, and a light guide groove, wherein the light guide groove runs through the housing and is adapted to be arranged with the LED light group on the light emitter, and the light guide groove is used to separate and isolate the light of two adjacent LED light groups. The present invention adopts a light guide groove, which can control the angle of illumination, so that there is a clear dividing line between the light and darkness of the LED lamp, and the light emitting effect is good, wherein the gap between the light guide groove and the film screen can ensure that there is no shadow in the middle when two adjacent LED light groups are on, avoid the phenomenon of uneven reflection, and can further ensure the uniformity of light emission of the entire LED light strip, and the display control method of the light after opening the door of the present invention can create a better display effect, can intuitively display the air freshness, and give users a more intuitive experience.

Description

Technical Field

[0001] The present invention relates to the technical field of lighting display, and in particular to an LED dynamic display device and a control method thereof. Background Art

[0002] Static display devices seem boring and dull to people, and the impression left in people's minds is not so deep. As a result, an LED dynamic display device has emerged.

[0003] However, the current dynamic display structure has the following defects: The light emitted by the LED lights shines on the film, and the light becomes darker and darker towards the periphery. There is no obvious boundary between light and darkness, and the control is one-way sweeping. The display effect is not ideal, and it is not associated with key indicators such as air freshness, but only for the display effect.

[0004] Therefore, the existing technology still needs to be improved. Summary of the Invention

[0005] The inventor found that in the prior art, there are problems in dynamic display such as no obvious boundary between light and darkness, unsatisfactory display effect caused by one-way sweeping, and lack of association with key indicators such as air freshness.

[0006] The present invention aims to at least alleviate or solve at least one of the above-mentioned problems to a certain extent. The present invention provides an LED dynamic display device and a control method thereof. Among them, an LED dynamic display device includes:

[0007] A housing,

[0008] A light emitter, which is arranged on one side of the housing. The light emitter includes a PCB board and an LED light strip arranged on the PCB board. A plurality of LED light groups are continuously and spacedly arranged on the light strip;

[0009] A film screen, which is arranged on the other side of the housing relative to the light emitter. The film screen is used for the light display of the LED light groups;

[0010] And a light guide groove, which penetrates through the housing and is arranged in adaptation with the LED light groups. The light guide groove is used for separating and isolating the light of adjacent two LED light groups.

[0011] In one embodiment, one side of the light guide groove is connected to the PCB board, the side of the light guide groove away from the PCB board is fixedly connected to the film screen, and there is a gap between the side of the light guide groove away from the PCB board and the film screen.

[0012] In one embodiment, the gap is 3 - 5 mm.

[0013] In one embodiment, the multiple LED light groups are evenly distributed and arranged in a straight line.

[0014] In one embodiment, the light strip includes a first light strip, a second light strip, and a third light strip. The first light strip and the third light strip are both evenly distributed in a straight line. The second light strip is a digital display light strip. The first light strip and the third light strip are respectively arranged on the left and right sides of the second light strip, and the first light strip and the third light strip are symmetrically distributed left and right.

[0015] In one embodiment, the LED dynamic display device further includes a first sensor and an air detector. The first sensor is electrically connected to the PCB board. The first sensor is used to sense whether there is a door opening action, and the PCB board controls the display mode of the LED lights through the first sensor;

[0016] The air detector is electrically connected to the PCB board. The air detector is used to detect the freshness of the air, and the PCB board controls the display mode of the LED lights by detecting the specific value of the freshness of the air.

[0017] A control method for the LED dynamic display device based on the above includes the following steps:

[0018] Step 10: Turn on the LED light strip and detect whether there is a door opening action; if yes, execute Step 20; if no, execute Step 30;

[0019] Step 20: The LED light groups light up one by one and then dim one by one, and then execute Step 30;

[0020] Step 30: Detect the air freshness, and the LED light groups light up one by one according to different air freshness levels.

[0021] In one embodiment, the LED light groups light up one by one in Step 20: The LED light strip includes a first LED light group, a second LED light group... and an Nth LED light group. The first LED light group, the second LED light group... and the Nth LED light group are sequentially evenly distributed in a straight line, and the first LED light group, the second LED light group... and the Nth LED light group light up one by one in sequence;

[0022] The LED light strip gradually dims in Step 20: The Nth LED light group, the (N - 1)th LED light group... the first LED light group dim one by one in sequence.

[0023] In one embodiment, the time for the LED light groups to light up one by one and the time for the LED light groups to dim one by one are both 1 s.

[0024] In one embodiment, the number of the LED lamp groups that light up is consistent with the change in the air freshness level. When the air freshness level is 0, all the LED lamp groups are dark, that is, all the LED lamp groups are turned off; when the air freshness level increases, the number of the LED lamp groups that light up increases correspondingly and the LED lamp groups light up one by one in sequence.

[0025] In one embodiment, the LED light strip includes a first LED lamp group, a second LED lamp group... a tenth LED lamp group. The first LED lamp group, the second LED lamp group... the tenth LED lamp group are evenly distributed in a straight line in sequence. The first LED lamp group, the second LED lamp group... the tenth LED lamp group light up one by one in sequence. The range value of the air freshness is 0 - 100;

[0026] When the detected range value of the air freshness is 0, the first LED lamp group, the second LED lamp group... the tenth LED lamp group are all turned off;

[0027] When the detected range value of the air freshness is 1 - 10, the first LED lamp group lights up;

[0028] When the detected range value of the air freshness is 11 - 20, the first LED lamp group and the second LED lamp group light up, and the first LED lamp group and the second LED lamp group light up one by one in sequence;

[0029] When the detected range value of the air freshness is 21 - 30, the first LED lamp group, the second LED lamp group and the third LED lamp group light up, and the first LED lamp group, the second LED lamp group and the third LED lamp group light up one by one in sequence; .......

[0030] When the detected range value of the air freshness is 91 - 100, the first LED lamp group, the second LED lamp group... the tenth LED lamp group light up, and the first LED lamp group, the second LED lamp group... the tenth LED lamp group light up one by one in sequence.

[0031] Advantages of the present invention: The present invention uses a light guide groove to control the angle of illumination, so that there is a distinct boundary between the light and darkness of the LED lamp, and the light-emitting effect is good. The gap between the light guide groove and the film screen can ensure that there is no shadow in the middle when two adjacent LED lamp groups are lit, and the phenomenon of uneven reflection is avoided. Therefore, the gap between the light guide groove and the film screen can further ensure the uniformity of the light emission of the entire LED light strip. The display control method of the lamp after the door is opened in the present invention can create a better display effect, can intuitively display the air freshness, and give the user a more intuitive experience. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] Figure 1 FIG. is an exploded view of the LED dynamic display device provided by the present invention.

[0033] Figure 2 FIG. is a perspective view of the LED dynamic display device provided by the present invention.

[0034] Figure 3 FIG. is a schematic diagram of the LED dynamic display device provided by the present invention becoming brighter.

[0035] Figure 4 is Figure 3 the perspective view of the A-A cross-section in FIG.

[0036] Figure 5 is Figure 4 the enlarged view of the partial B in FIG.

[0037] Figure 6 FIG. is a schematic diagram of a partial enlargement of a certain part of the front of the housing provided by the present invention.

[0038] Figure 7 FIG. is a perspective view of the back of the housing provided by the present invention.

[0039] Figure 8 is Figure 7 the enlarged view of the partial C in FIG.

[0040] Figure 9 FIG. is a schematic diagram of the control process flow of the LED dynamic display device provided by the present invention.

[0041] Figure 10 FIG. is a relationship table between the brightness and air freshness of the LED dynamic display device provided by the present invention.

[0042] Reference Signs:

[0043] DETAILED DESCRIPTION OF THE INVENTION

[0044] To make the objectives, technical solutions and advantages of the present invention clearer and more definite, the following further describes the present invention in detail with reference to the accompanying drawings and by way of examples. It should be understood that the specific examples described herein are only used to explain the present invention and are not used to limit the present invention.

[0045] It should be noted that if there are directional indications (such as up, down, left, right, front, back...) involved in the embodiments of the present invention, the directional indications are only used to explain the relative positional relationship and movement conditions between components in a specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indications will also change accordingly.

[0046] In addition, if there are descriptions such as "first", "second", etc. involved in the embodiments of the present invention, the descriptions of "first", "second", etc. are only for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include at least one such feature. In addition, the technical solutions between various embodiments can be combined with each other, but it must be based on the fact that those skilled in the art can implement it. When the combination of technical solutions is contradictory or cannot be implemented, it should be considered that such a combination of technical solutions does not exist and is not within the protection scope required by the present invention.

[0047] Based on the problems existing in the prior art, this embodiment provides an LED dynamic display device and a control method. Refer to Figure 1 and Figure 2 , an LED dynamic display device includes: a housing 200, a light emitter, a film screen 300, and a light guide groove 210.

[0048] The light emitter is disposed on one side of the housing 200. The light emitter includes a PCB board 100 and an LED light strip 110 disposed on the PCB board 100. A plurality of LED lamp groups 111 are continuously and spacedly arranged on the LED light strip 110; the film screen 300 is disposed on the other side of the housing 200 opposite to the light emitter, and the film screen 300 is used for displaying the light of the LED lamp groups 111; the light guide groove 210 penetrates the housing 20 and is disposed in adaptation with the LED lamp groups 111, and the light guide groove 210 is used for separating and partitioning the light rays of two adjacent LED lamp groups 111.

[0049] The light emitted by the LED lamp in the prior art shines on the film. The light becomes darker and darker towards the periphery, and there is no obvious boundary between light and darkness, resulting in an unsatisfactory display effect. The present invention uses a light guide groove, which can control the angle of the light, so that there is an obvious boundary between the light and darkness of the LED lamp, ensuring the uniform light emission of the entire light band and achieving a good light emission effect.

[0050] In one embodiment, refer to Figure 3 , Figure 4 andFigure 5 One side of the light guide groove 210 is connected to the PCB board 100, and the side of the light guide groove 210 away from the PCB board 100 is fixedly connected to the film screen 300, and a gap L is provided between the light guide groove 210 and the film screen 300.

[0051] Specifically, in combination with Figure 6 and Figure 7 On the housing 200, a light guide groove 210 adapted to the LED lamp group 111 is provided. The LED lamp group 111 irradiates the film screen 300 through the light guide groove 210. The film screen 300 is fixedly connected to the front surface 201 of the housing in a fitting manner, and a gap L is provided between the light guide groove 210 and the film screen 300. That is, a plurality of independent light guide grooves 210 are provided on the back surface 202 of the housing and penetrate the entire housing 200. The adjacent light guide grooves 210 are separated by a light blocking plate 211. A through groove is further provided on the front surface 201 of the housing, so that the plurality of independent light guide grooves 210 are connected into a piece, and a certain gap is maintained between the light guide groove 210 and the film screen 300. Preferably, the gap L is 3-5 mm, that is, the distance between the top 212 of the light blocking plate and the front surface 201 of the housing is 3-5 mm. The gap L can ensure that there is no shadow in the middle when two adjacent LED lamp groups 111 are lit and avoid the phenomenon of uneven reflection. Therefore, the gap between the light guide groove 210 and the film screen 300 can ensure the uniform light emission of the entire LED light strip 110.

[0052] In addition, in combination with Figure 8 On the back surface 202 of the housing, a fastening portion 220 and a groove 230 are provided. The housing 200 is fixedly connected to the PCB board by snap-fastening through the fastening portion 220, which can make the connection between the housing and the PCB board stable and firm, not easy to loosen. The design of the groove 230 can save the material of the housing, reduce the cost of the entire device and reduce the weight of the entire device.

[0053] In one embodiment, the light strip includes a first light strip 101, a second light strip 102 and a third light strip 103. The first light strip 101 and the third light strip 103 are both linearly and evenly distributed. The second light strip 102 is a digital display light strip. The first light strip 101 and the third light strip 103 are respectively arranged on the left and right sides of the second light strip 102, and the first light strip 101 and the third light strip 103 are symmetrically distributed left and right. The first light strip 101 and the third light strip 103 are both provided with a plurality of LED lamp groups 111, and the plurality of LED lamp groups 111 are evenly distributed and linearly arranged.

[0054] In one embodiment, the LED dynamic display device further includes a first sensor (not labeled) and an air detector (not labeled). The first sensor is electrically connected to the PCB board 100, and the first sensor is used to sense whether there is a door opening action, and the PCB board 100 controls the display mode of the LED lamp through the first sensor;

[0055] The air detector is electrically connected to the PCB board 100. The air detector is used to detect the freshness of the air, and the PCB board 100 controls the display mode of the LED lights by detecting the specific value of the freshness of the air.

[0056] Air detector: It is the latest scientific and technological product developed based on the principle of the fixed potential electrolysis sensor to detect polluting gases and the principle of light scattering to detect dust, combined with the internationally mature electronic technology and network communication technology; the air detector adopts the principle of high-sensitivity electrochemical sensors, combined with single-chip microcomputer technology and network communication technology, and can continuously monitor SO2, NO2, O3, CO, H2S, NH3, HF gases in the atmosphere and comprehensively display the required measurement data. First, the air pump draws environmental air through the filter, and after passing through the flow regulator, it is sent to the sensor chamber at a flow rate of 300 mL / min respectively. The signals generated when passing through the sensor are amplified and A / D converted, and then collected, calculated, and data processed by the microprocessor to generate concentration result data, and at the same time save the data results or send them to the information center through the RS485 serial interface.

[0057] A control method for the LED dynamic display device based on the above, as Figure 9 and Figure 10 shown, includes the following steps:

[0058] Step 10: Turn on the LED light strip and detect whether there is a door opening action; if yes, execute step 20; if no, execute step 30;

[0059] Step 20: The LED light groups light up one by one and then dim one by one, and then execute step 30;

[0060] Step 30: Detect the air freshness, and the LED light groups light up one by one in sequence according to different air freshness levels.

[0061] In one embodiment, the LED light groups in step 20 gradually light up: The LED light strip includes the first LED light group, the second LED light group.... and the Nth LED light group. The first LED light group, the second LED light group...... and the Nth LED light group are evenly distributed in a straight line in sequence, and the first LED light group, the second LED light group...... and the Nth LED light group gradually light up one by one in sequence;

[0062] The LED light strip in step 20 gradually dims: The Nth LED light group, the (N - 1)th LED light group...... the first LED light group gradually dim one by one in sequence.

[0063] In one embodiment, the time for the LED light groups to light up one by one and the time for the LED light groups to dim one by one are both 1 s, refer to Figure 1, the first LED lamp group, the second LED lamp group... and the Nth LED lamp group of the first light strip 101 on the left are evenly distributed in a straight line in sequence. The first LED lamp group, the second LED lamp group... and the Nth LED lamp group gradually light up one by one, and the time for the first light strip 101 on its left to gradually light up one by one is 1 s. When the Nth LED lamp group, the (N - 1)th LED lamp group... and the first LED lamp group gradually dim one by one, the time for it to dim is 1 s; continue to refer to Figure 1 , the first LED lamp group, the second LED lamp group... and the Nth LED lamp group of the second light strip 102 on the right are evenly distributed in a straight line in sequence. The first LED lamp group, the second LED lamp group... and the Nth LED lamp group gradually light up one by one, and the time for the second light strip 102 on its right to gradually light up is 1 s. When the Nth LED lamp group, the (N - 1)th LED lamp group... and the first LED lamp group gradually dim one by one, the time for it to dim is 1 s.

[0064] In one implementation, the number of lit LED lamp groups changes in accordance with the change in the air freshness level. When the air freshness level is 0, all LED lamp groups are dark, that is, all LED lamps are extinguished; when the air freshness level increases, the number of lit LED lamp groups increases correspondingly and the LED lamp groups light up one by one in sequence.

[0065] In one implementation, the LED light strip includes the first LED lamp group, the second LED lamp group... the tenth LED lamp group. The first LED lamp group, the second LED lamp group... the tenth LED lamp group are evenly distributed in a straight line in sequence. The range value of the air freshness is 0 - 100;

[0066] When the detected range value of the air freshness is 0, the first LED lamp group, the second LED lamp group... the tenth LED lamp group are all extinguished;

[0067] When the detected range value of the air freshness is 1 - 10, the first LED lamp group lights up;

[0068] When the detected range value of the air freshness is 11 - 20, the first LED lamp group and the second LED lamp group light up, and the first LED lamp group and the second LED lamp group light up one by one in sequence;

[0069] When the detected range value of the air freshness is 21 - 30, the first LED lamp group, the second LED lamp group and the third LED lamp group light up, and the first LED lamp group, the second LED lamp group and the third LED lamp group light up one by one in sequence; .......

[0070] When the detected range value of air freshness is 91 - 100, the first LED light group, the second LED light group... the tenth LED light group light up, and the first LED light group, the second LED light group... the tenth LED light group light up one by one in sequence.

[0071] In an implementation manner, the light strip includes a first light strip 101, a second light strip 102, and a third light strip 103. Both the first light strip 101 and the third light strip 103 are linearly and evenly distributed. The second light strip 102 is a digital display light strip. The first light strip 101 and the third light strip 103 are respectively arranged on the left and right sides of the second light strip 102, and the first light strip 101 and the third light strip 103 are symmetrically distributed left and right. Both the first light strip 101 and the third light strip 103 include a first LED light group, a second LED light group... a tenth LED light group. The first LED light group, the second LED light group... the tenth LED light group are linearly and evenly distributed in sequence. The first LED light group of the first light strip 101 is arranged at the leftmost side of the light strip, and the first LED light group of the third light strip 103 is arranged at the rightmost side of the light strip;

[0072] When the detected range value of air freshness is 0, the first LED light group, the second LED light group... the tenth LED light group are all turned off;

[0073] When the detected range value of air freshness is 1 - 10, the first LED light group of the leftmost first light strip 101 and the first LED light group of the rightmost third light strip 103 light up simultaneously;

[0074] When the detected range value of air freshness is 11 - 20, the first LED light group and the second LED light group of the first light strip 101 light up, and the first LED light group and the second LED light group light up one by one in sequence; the first LED light group and the second LED light group of the third light strip 103 light up one by one in sequence, and the first light strip 101 and the third light strip 103 light up synchronously. The first LED light group and the second LED light group light up one by one from both sides. The lighting direction of the first light strip 101 and the third light strip 103 is specifically as Figure 3 shown.

[0075] When the detected range value of air freshness is 21 - 30, the first LED light group, the second LED light group, and the third LED light group of the first light strip 101 light up, and the first LED light group, the second LED light group, and the third LED light group of the first light strip 101 light up one by one in sequence; the first LED light group, the second LED light group, and the third LED light group of the third light strip 103 light up one by one in sequence, and the first light strip 101 and the third light strip 103 light up synchronously. The first LED light group, the second LED light group, and the third LED light group light up one by one from both sides. The lighting direction of the first light strip 101 and the third light strip 103 is specifically asFigure 3 as shown .......

[0077] When the detected range value of air freshness is 91 - 100, the first LED lamp group, the second LED lamp group... the tenth LED lamp group of the first light strip 101 light up, and the first LED lamp group, the second LED lamp group... the tenth LED lamp group of the first light strip 101 light up one by one in sequence; the first LED lamp group, the second LED lamp group... the tenth LED lamp group of the third light strip 103 light up one by one in sequence, and the first light strip 101 and the third light strip 103 light up synchronously. The first LED lamp group, the second LED lamp group... the tenth lamp group light up one by one from both sides in sequence. The specific lighting direction of the first light strip 101 and the third light strip 103 is as Figure 3 shown

[0078] In summary, the present invention adopts a light guide groove, which can control the lighting angle, making the light and dark of the LED lamp have an obvious boundary line, and the lighting effect is good. The gap L can ensure that there is no shadow in the middle when two adjacent LED lamp groups are lit and avoid the phenomenon of uneven light reflection. Therefore, the gap between the light guide groove and the film screen can further ensure the lighting uniformity of the entire LED light strip. The display control method of the lamp after the door is opened in the present invention can create a better display effect, visually display the air freshness, and give users a more intuitive experience.

[0079] It should be understood that the application of the present invention is not limited to the above examples. For those of ordinary skill in the art, improvements or transformations can be made according to the above description. All such improvements and transformations shall fall within the protection scope of the appended claims of the present invention.

Claims

1. An LED dynamic display device, characterized in that include: case, A light emitter, the light emitter being arranged on one side of the housing, the light emitter comprising a PCB board and an LED light strip arranged on the PCB board, wherein a plurality of LED light groups are arranged on the light strip at intervals in a row; A film screen, which is arranged on the other side of the housing relative to the light emitter, and is used for light display of the LED light group; A light guide groove, which passes through the housing and is adapted to be arranged with the LED light group, and is used to separate and isolate the light of two adjacent LED light groups; the light guide groove is separated by a light isolation plate, so that the independent light guide groove is adapted to be arranged with the LED light group; A through slot is provided on the front side of the housing, and the through slot connects a plurality of independent light guide slots into one piece, and keeps a certain gap between the light guide slots and the film screen; One side of the light guide groove is connected to the PCB board, and the side of the light guide groove away from the PCB board is fixedly connected to the film screen, and a gap is set between the side of the light guide groove away from the PCB board and the film screen, and the gap is 3-5mm; The LED dynamic display device also includes a first sensor and an air detector, wherein the first sensor is electrically connected to the PCB board, the first sensor is used to sense whether there is a door opening action, and the PCB board controls the LED light display mode through the first sensor; The air detector is electrically connected to the PCB board, and the air detector is used to detect the freshness of the air. The PCB board controls the display mode of the LED light by detecting the specific value of the freshness of the air.

2. The LED dynamic display device according to claim 1, wherein The plurality of LED light groups are evenly distributed and arranged in a straight line.

3. The LED dynamic display device according to claim 1, wherein The light strips include a first light strip, a second light strip and a third light strip. The first light strip and the third light strip are evenly distributed in a straight line. The second light strip is a digital display light strip. The first light strip and the third light strip are respectively arranged on the left and right sides of the second light strip, and the first light strip and the third light strip are symmetrically distributed on the left and right sides.

4. A control method for an LED dynamic display device according to any one of claims 1-3, characterized in that, The following steps are involved: Step 10: Turn on the LED light strip and detect whether there is a door opening action; if yes, execute step 20; if no, execute step 30; Step 20: The LED light groups are brightened one by one and then dimmed one by one, and then step 30 is executed; Step 30: Detect air freshness, and the LED light groups light up one by one according to different air freshness.

5. The control method of the LED dynamic display device according to claim 4, characterized in that, The LED light groups in step 20 are brightened one by one: the LED light strip includes a first LED light group, a second LED light group ... and an Nth LED light group, the first LED light group, the second LED light group ... and the Nth LED light group are evenly distributed in a straight line in sequence, and the first LED light group, the second LED light group ... and the Nth LED light group are brightened one by one in sequence; The LED light strips in step 20 gradually dim: the Nth LED light group, the N-1th LED light group, ... the first LED light group dim one by one in sequence.

6. The control method of the LED dynamic display device according to claim 5, wherein The time for each LED light group to light up one by one and the time for each LED light group to dim one by one are both 1 s.

7. The control method of the LED dynamic display device according to claim 5, characterized in that The number of lit LED light groups is consistent with the change in the air freshness level. When the air freshness level is 0, all the LED light groups are dark, that is, all the LED light groups are turned off; when the air freshness level increases, the number of lit LED light groups increases correspondingly and the LED light groups light up one by one in sequence.

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