Multimedia telephone booth

Abstract

The invention relates to a multimedia telephone booth. Functional modules arranged in the telephone booth comprise a public telephone and an IC card reader, and the multimedia telephone booth is provided with a multimedia terminal display screen, a sound box module and various charging interfaces. The power supply module of the telephone booth main processor is provided with a multi-stage surge protector; the input end of the power supply module is connected with a primary surge protector through a filter; the output end of the power supply module is connected with the main processor through a three-stage surge protector, and lightning protection modules are respectively arranged between the main processor and each functional module. Compared with the prior art, the multimedia telephone booth with the electrical lightning protection measures has the advantages that more diversified services are provided for a user, lightning protection of all functional components of the telephone booth is achieved, the electrical safety performance of the multimedia telephone booth is improved, and the service life of the telephone booth is prolonged.

Description

TECHNICAL FIELD

[0001] The application relates to a public telephone booth, in particular to a multimedia telephone booth with better lightning disaster protection performance. BACKGROUND

[0002] With the wide popularity of mobile phones and the rapid development of mobile communication and network technology, traditional public telephone booths are gradually eliminated and forgotten in people's sight because of single function and narrow application, and are gradually eliminated and forgotten. In order to improve the use rate of public telephone booths, it is urgent to upgrade and transform the public telephone booths to multimedia, so as to provide more information services for citizens and extend the function of public telephone booths.

[0003] Lightning disaster is one of the most serious natural disasters, and the number of casualties and property losses caused by lightning disaster all over the world every year is incalculable. As an outdoor device, the public telephone booth is greatly affected by lightning disaster. The traditional public telephone booth has lightning protection measures such as setting lightning rod and grounding to form a conditional equipotential body of metal and ground, so as to discharge lightning into the ground. However, with the multimedia upgrade and transformation of the public telephone booth, that is, the application of electronic and microelectronic integrated devices, the internal facilities shunt, induced lightning current or surge current and lightning overvoltage and lightning electromagnetic pulse caused by lightning and surge will cause damage to electrical equipment and system. Therefore, it is very important to solve the lightning disaster protection problem of the electronic system of the public telephone booth as soon as possible. SUMMARY

[0004] The application aims to overcome the weak lightning disaster protection defect of the prior art multimedia telephone booth and provide a multimedia telephone booth.

[0005] The application can be realized by the following technical scheme.

[0006] A multimedia telephone booth, the function modules of the telephone booth include public telephone and IC card reader, and the telephone booth is provided with a multimedia terminal display screen, a sound box module and a plurality of charging interfaces.

[0007] The power module of the main processor of the telephone booth is provided with a multi-stage surge protector, and lightning protection modules are arranged between the main processor and each function module.

[0008] As a preferred technical scheme, the input end of the power module is connected with a first-stage surge protector through a filter; and the output end of the power module is connected with the main processor through a third-stage surge protector.

[0009] As a preferred technical scheme, the first-stage surge protector is DEHN DV M TN 255.

[0010] As a preferred technical solution, the three-stage surge protector is DEHN DR M 2P 30.

[0011] As a preferred technical solution, the filter is DEHN NF10.

[0012] As a preferred technical solution, the plurality of charging interfaces include a wireless charging module and a wired charging interface; and an isolation module is further arranged between the main processor and the lightning protection module corresponding to each charging interface.

[0013] As a preferred technical solution, the isolation module is an optoelectronic coupler TOS12VDC / 48VDC 0.1A.

[0014] As a preferred technical solution, the wireless charging module is a CPS812X magnetic wireless charging module.

[0015] As a preferred technical solution, the wired charging interface includes USB and Type-C female seat interfaces and Type-C, Micro-USB and Lighting male connectors.

[0016] As a preferred technical solution, the USB and Type-C female seat interfaces of the wired charging interface are detachably provided with dustproof and waterproof plugs matching the shapes of the interfaces.

[0017] Compared with the prior art, the present application has the following beneficial effects:

[0018] The present application provides a multimedia telephone booth with electrical lightning protection measures, which provides more diversified services for users, realizes lightning protection for each functional component of the telephone booth, improves the electrical safety performance of the multimedia telephone booth, and prolongs the service life of the telephone booth. BRIEF DESCRIPTION OF DRAWINGS

[0019] Figure 1 is a front view of the multimedia telephone booth of the present application;

[0020] Figure 2 is a schematic diagram of the lightning protection circuit structure of the present application;

[0021] The reference signs in the figure are as follows: 1, main processor, 2, IC card reader, 3, IC card reader, 4, multimedia terminal display screen, 5, sound box module, 6, wireless charging module, 7, wired charging interface, 8, lightning protection module, 9, isolation module, 10, first-stage surge protector, 11, filter, 12, power module, 13, three-stage surge protector, 14, public telephone network interface. DETAILED DESCRIPTION

[0022] The application will be described in detail below in combination with the drawings and specific embodiments. The embodiments are implemented on the premise of the technical solutions of the application, and detailed implementation modes and specific operation processes are given, but the protection scope of the application is not limited to the following embodiments.

[0023] Embodiment 1

[0024] The application provides a multimedia telephone booth with improved electrical lightning protection performance to improve the electrical lightning protection performance of the multimedia telephone booth, ensure the safe use of the telephone booth, and prolong the service life of the multimedia telephone booth.

[0025] As shown in Figure 1 The multimedia telephone booth provided by the application is provided with a multimedia terminal display screen 4 in addition to a conventional public telephone 2 and an IC card reader 3. The multimedia terminal display screen 4 can be used for browsing city maps, bus information, and scrolling playing of commodity advertisements and the like by relying on an existing mature embedded development system. An audio box module 5 can be used for playing system prompts and audio information such as advertisements. The multimedia telephone booth is also provided with a plurality of charging interfaces, including a wireless charging module 6 and a wired charging interface 7. The wired charging interface 7 includes USB and Type-C female seat interfaces and Type-C, Micro-USB, and Lighting male connectors. The male connector module specifically adopts a CYPD2103A chip. A dustproof and waterproof rubber soft plug matched with the shape of the interface is detachably arranged at the USB and Type-C female seat interfaces. The wireless charging module 6 specifically adopts a CPS812X magnetic suction wireless charging module.

[0026] As shown in Figure 2 To improve the electrical performance of the multimedia telephone booth, the application also provides a circuit with lightning protection measures. An input voltage is converted into a 12V power supply by a power module 12, which specifically adopts a TBL030-112 in the embodiment. The input end of the power module 12 is connected with a DEHN DV M TN 255 first-stage surge protector 10 through a DEHN NF10 filter 11. The output end of the power module 12 is connected with a main processor 1MCU through a DEHN DR M 2P 30 third-stage surge protector 13. Through the lightning protection measures described above, the telephone booth can be isolated from lightning overvoltage and lightning electromagnetic pulse disturbance in the power distribution network.

[0027] The main processor 1 accesses the public telephone network through the public telephone network interface 14, and lightning protection modules 8 are arranged between the main processor 1 and the telephone module 2, the IC card reading module, the multimedia terminal display screen module 4 and the sound module 5 respectively; the main processor 1 and the female seat interface module 6 and the male connector module 7 are connected through the lightning protection modules 8 after being isolated from circuit signal interference by the isolation module 9. The lightning protection module 8 specifically adopts DEHN BXT ML4 BE 5, and the isolation module 9 specifically adopts an optoelectronic coupler TOS12VDC / 48VDC 0.1A. Each functional unit module is protected by the lightning protection module 8 to prevent damage to each functional module of the telephone booth after being struck by lightning.

[0028] The preferred embodiments of the application are described in detail above. It should be understood that those of ordinary skill in the art can make many modifications and variations without creative work based on the concept of the present application. Therefore, any technical solution obtained by logical analysis, reasoning or limited experiment based on the existing technology according to the concept of the present application shall be within the protection scope defined by the claims.

Claims

1. A multimedia telephone booth, wherein the functional modules of the telephone booth include a public telephone (2) and an IC card reader (3), characterized in that, It also includes a multimedia telephone booth equipped with a multimedia terminal display screen (4), a speaker module (5) and multiple charging interfaces; The power module (12) of the main processor (1) of the telephone booth is equipped with a multi-level surge protector; a lightning protection module (8) is provided between the main processor (1) and each functional module.

2. A multimedia telephone booth according to claim 1, characterized in that, The input terminal of the power module (12) is connected to a first-stage surge protector (10) via a filter (11); the output terminal of the power module (12) is connected to the main processor (1) via a third-stage surge protector (13).

3. A multimedia telephone booth according to claim 2, characterized in that, The primary surge protector (10) is a DEHN DV M TN 255.

4. A multimedia telephone booth according to claim 2, characterized in that, The three-stage surge protector (13) is DEHN DR M 2P 30.

5. A multimedia telephone booth according to claim 2, characterized in that, The filter (11) is a DEHNNF10.

6. A multimedia telephone booth according to claim 5, characterized in that, The various charging interfaces include a wireless charging module (6) and a wired charging interface (7); an isolation module (9) is also provided between the main processor (1) and the surge protection module (8) corresponding to each charging interface.

7. A multimedia telephone booth according to claim 6, characterized in that, The isolation module (9) is an optocoupler TOS12VDC / 48VDC 0.1A.

8. A multimedia telephone booth according to claim 6, characterized in that, The wireless charging module (6) is a CPS812X magnetic wireless charging module.

9. A multimedia telephone booth according to claim 6, characterized in that, The wired charging interface includes USB and Type-C female connectors and Type-C, Micro-USB and Lightning male connectors.

10. A multimedia telephone booth according to claim 9, characterized in that, The wired charging interface has a detachable dustproof and waterproof plug that matches the shape of the interface at both the USB and Type-C female connectors.

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