Environment-friendly access control large-screen display device

Abstract

The utility model discloses an environment-friendly access control large screen display device which comprises a shell, a display screen and a rear cover, the display screen is installed at the position, close to the upper portion, of the front face in the shell, a sound hole is formed in the position, below the display screen, of the front face of the shell, and two loudspeakers are installed at the positions, close to the two sides, of the upper portion in the shell. A sound transmission pipe is installed between the loudspeaker and the sound hole, and the rear cover is installed on the back of the shell. At present, most environment-friendly access control large-screen display devices are only provided with one loudspeaker, the large-screen display device is provided with two loudspeakers, on the premise that parameters of the loudspeakers are not changed, larger loudness of voice broadcast and sound alarm is provided, and in addition, the loudness of the large-screen display device is improved through a sound transmission pipe with a smooth inner wall. According to the environment-friendly access control large-screen display device, sound gathering and guiding in a certain distance are carried out in the shell of the environment-friendly access control large-screen display device, so that when voice broadcast sound and alarm sound are transmitted out of the shell, certain directivity is achieved, the penetrating power is improved, and the voice broadcast effect is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of access control displays, in particular to an environmentally friendly access control large-screen display device. Background Art

[0002] The environmental protection access control is an intelligent access control mainly set up for automobile environmental protection issues. It is generally set up at the vehicle access gate of some key logistics and transportation companies. The environmental protection access control enters the vehicle information in advance, including license plate number, emission standards, etc., and cooperates with access control cameras, exhaust gas detection and other supporting equipment when the vehicle passes. At the same time, it is connected to the control office to compare and register information such as license plate number recognition, exhaust gas detection, load, passing time, and number of entries and exits, and makes a judgment on whether the vehicle is passing or not. When passage is prohibited, an alarm is issued to remind relevant staff to handle it manually, thereby realizing environmental protection detection and passage control.

[0003] At present, the environmental protection access control large-screen display devices on the market usually integrate display, sound alarm and light alarm functions, but they all have a common problem: the current sound alarm and voice broadcast speakers are directly installed on the inner wall of the environmental protection access control large-screen display device shell, and no sound gathering and guidance measures are set. When voice broadcast and sound alarm are used, the speaker sound will directly disperse after passing through the environmental protection access control large-screen display device shell, and the sound penetration is poor, especially the voice broadcast sound. The installation height of the environmental protection access control large-screen display device is about 1.5-2m. When large logistics transportation vehicles are at the gate, the environmental protection access control large-screen display device is just close to the height of the sound emitted by the large vehicle engine. The sound of the large vehicle engine can easily cover the voice broadcast sound, resulting in invalid broadcast and defects. Utility Model Content

[0004] In view of the shortcomings of the prior art, the utility model provides an environmentally friendly access control large-screen display device, which is used to solve the problem that the speakers of most environmentally friendly access control large-screen display devices on the market are not equipped with sound gathering and guiding measures, resulting in direct divergence of speaker sound and poor penetration.

[0005] In order to solve the above technical problems, the utility model provides the following technical solutions:

[0006] An environmentally friendly access control large-screen display device comprises a shell, a display screen and a back cover, wherein the display screen is mounted on the front side of the shell near the top, and a sound hole is provided on the front side of the shell below the display screen, two speakers are mounted on the top side of the shell near both sides, a sound transmission tube is mounted between the speaker and the sound hole, and the back cover is mounted on the back side of the shell.

[0007] Preferably, a controller is installed inside the shell, an alarm light is installed on the top of the shell, the display screen, the alarm light and the speaker are all connected to the controller signal, and the controller is also connected to the access control camera and the central processing unit of the control center by signal.

[0008] Preferably, the control center is a management computer of a door access management center, and the control center also includes a memory connected to the central processing unit signal.

[0009] Preferably, the sound holes are a plurality of small circular holes of the same size and evenly distributed.

[0010] Preferably, the sound transmission tube includes a vertical tube section with a smooth inner wall connected to the speaker and an arc tube section below which is bent toward the front and corresponds to the sound hole.

[0011] Preferably, a sealing gasket is provided between the front side of the inner wall of the shell and the display screen and the sound transmission tube, and the sealing gasket is hollowed out at positions corresponding to the window and the sound hole of the shell.

[0012] Preferably, a sealing ring is provided between the speaker and the sound transmission tube.

[0013] Preferably, a fixing frame with two ends connected to two sides of the inner wall of the shell is installed inside the shell, the display screen is fixedly installed on the front side of the fixing frame, and the controller is installed on the fixing frame.

[0014] Preferably, a connecting ear is provided at a position of the inner wall of the shell near the back side, and the back cover is mounted on the back side of the shell by means of the connecting ear and the fixing frame.

[0015] Compared with the prior art, the utility model has the following beneficial effects:

[0016] Currently, most environmentally friendly access control large-screen display devices have only one speaker. The utility model provides a greater loudness of voice broadcast and sound alarm by setting two speakers under the premise that the speaker parameters remain unchanged. In addition, through the sound transmission tube with a smooth inner wall, sound is gathered and guided for a certain distance inside the shell of the environmentally friendly access control large-screen display device, so that the voice broadcast sound and the alarm sound have a certain directionality when they are transmitted out of the shell, thereby improving the penetration, making it easier for drivers to hear the voice broadcast information in front of the environmentally friendly access control large-screen display device, improving the effect of voice broadcast, and solving the problem that the speakers of most environmentally friendly access control large-screen display devices on the market are not equipped with sound gathering and guiding measures, resulting in direct divergence of the speaker sound and poor penetration. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is the front view of the utility model;

[0018] Figure 2 This is a rear view of the utility model;

[0019] Figure 3 This is a rear view of the internal structure of the housing of the utility model;

[0020] Figure 4 This is a left sectional view of the internal structure of the housing of the utility model;

[0021] Figure 5 This is a top view of the fixing frame of the utility model;

[0022] Figure 6 This is a front view of the sealing gasket of the utility model;

[0023] Figure 7 This is the principle diagram of the utility model system.

[0024] In the figure: 1. shell; 101. sound hole; 102. connecting ear; 2. display screen; 3. back cover; 4. speaker; 5. sound tube; 6. controller; 7. alarm light; 8. access control camera; 9. control center; 901. central processing unit; 902. memory; 10. sealing pad; 11. sealing ring; 12. fixing bracket. DETAILED DESCRIPTION

[0025] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0026] like Figure 1-7 As shown, the utility model provides a technical solution: an environmentally friendly access control large-screen display device, comprising a housing 1, a display screen 2 and a back cover 3, the display screen 2 is installed at a position near the top of the front of the housing 1, and a sound hole 101 is provided at a position below the display screen 2 on the front of the housing 1, a sealing gasket 10 is provided between the front of the inner wall of the housing 1 and the display screen 2 and the sound transmission tube 5, and the sealing gasket 10 is hollowed out at the position corresponding to the window of the housing 1 and the sound hole 101;

[0027] The sound holes 101 are a number of small circular holes of the same size and evenly distributed. Two speakers 4 are installed at the upper part of the housing 1 near the two sides. A sound transmission tube 5 is installed between the speakers 4 and the sound holes 101. A sealing ring 11 is provided between the speakers 4 and the sound transmission tube 5. The sound transmission tube 5 includes a vertical section tube with a smooth inner wall connected to the speakers 4 and a circular arc section tube bent toward the front below and corresponding to the sound holes 101.

[0028] The rear cover 3 is mounted on the back of the housing 1. A fixing frame 12 is mounted inside the housing 1, with both ends connected to the two sides of the inner wall of the housing 1. The display screen 2 is fixedly mounted on the front of the fixing frame 12. The controller 6 is mounted on the fixing frame 12. A connecting ear 102 is provided at a position of the inner wall of the housing 1 near the back. The rear cover 3 is mounted on the back of the housing 1 through the connecting ear 102 and the fixing frame 12.

[0029] A controller 6 is installed inside the shell 1, and an alarm light 7 is installed on the top of the shell 1. The display screen 2, the alarm light 7 and the speaker 4 are all connected to the controller 6 by signal. The controller 6 is also connected to the access control camera 8 and the central processor 901 of the control center 9 by signal. The control center 9 is the management computer of the access control management center. The control center 9 also includes a memory 902 connected to the central processor 901 by signal.

[0030] Working principle: Enter vehicle information in advance. When the vehicle passes through the environmental protection access control gate, the access control camera 8 and related environmental protection equipment identify and enter the vehicle information. The controller 6 drives the speaker 4 to broadcast the vehicle information by voice. The information is transmitted to the control center 9 through the controller 6, and the information is compared through the central processor 901. If it meets the original entry requirements, the gate is controlled to open through the controller 6, and the speaker 4 makes a voice broadcast allowing the vehicle to pass; when it does not meet the passing requirements, the speaker 4 makes a voice broadcast and alarm, and the alarm light 7 works at the same time; when the speaker 4 makes a sound, the sound is collected and guided for a distance through the sound transmission tube 5 with a smooth inner wall, so that the sound has a certain directionality when it is transmitted from the outer shell 1, thereby improving the penetration effect, so that the driver in front of the environmental protection access control large-screen display device can also hear the voice broadcast content of the environmental protection access control large-screen display device under the sound of the car engine, thereby improving the use effect of the environmental protection access control large-screen display device.

[0031] It should be noted that, in this article, terms such as "comprises", "includes" or any other variations thereof are intended to cover non-exclusive inclusion, so that a process, method, article or apparatus that includes a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or apparatus.

[0032] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An environmentally friendly access control large-screen display device, comprising a housing (1), a display screen (2) and a back cover (3), characterized in that: The display screen (2) is mounted at a position near the top of the front of the housing (1), and a sound hole (101) is provided at a position below the display screen (2) on the front of the housing (1). Two speakers (4) are mounted at positions near both sides of the top of the housing (1), and a sound transmission tube (5) is mounted between the speakers (4) and the sound hole (101). The back cover (3) is mounted on the back of the housing (1).

2. The environmentally friendly access control large-screen display device according to claim 1, characterized in that: A controller (6) is installed inside the housing (1), an alarm light (7) is installed on the top of the housing (1), the display screen (2), the alarm light (7) and the speaker (4) are all connected to the controller (6) by signal, and the controller (6) is also connected to the access control camera (8) and the central processing unit (901) of the control center (9) by signal.

3. The environmentally friendly access control large-screen display device according to claim 2, characterized in that: The control center (9) is a management computer of the access control management center. The control center (9) also includes a memory (902) connected to the central processing unit (901) by signal.

4. The environmentally friendly access control large-screen display device according to claim 1, characterized in that: The sound holes (101) are a plurality of small circular holes of the same size and evenly distributed.

5. The environmentally friendly access control large-screen display device according to claim 1, characterized in that: The sound transmission tube (5) comprises a vertical tube section having a smooth inner wall connected to the speaker (4) and a circular arc tube section below which is bent toward the front and corresponds to the sound hole (101).

6. The environmentally friendly access control large-screen display device according to claim 1, characterized in that: A sealing gasket (10) is provided between the front side of the inner wall of the housing (1) and the display screen (2) and the sound transmission tube (5), and the sealing gasket (10) is hollowed out at positions corresponding to the window and the sound hole (101) of the housing (1).

7. The environmentally friendly access control large-screen display device according to claim 1, characterized in that: A sealing ring (11) is provided between the speaker (4) and the sound transmission tube (5).

8. The environmentally friendly access control large-screen display device according to claim 2, characterized in that: A fixing frame (12) is installed inside the housing (1) with two ends connected to two sides of the inner wall of the housing (1), the display screen (2) is fixedly mounted on the front side of the fixing frame (12), and the controller (6) is mounted on the fixing frame (12).

9. The environmentally friendly access control large-screen display device according to claim 8, characterized in that: A connecting ear (102) is provided on the inner wall of the shell (1) at a position close to the back side, and the back cover (3) is mounted on the back side of the shell (1) by means of the connecting ear (102) and the fixing frame (12).

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