IP ceiling speaker with all-optical network transmission

Abstract

The utility model relates to the field of broadcast transmission facilities, concretely relates to an IP ceiling loudspeaker with all-optical network transmission, including shell, is provided with double optical network interface, constant voltage output terminal and power input terminal on the shell, the frame is connected in the shell bottom mouth, the base is fixed in the shell with the frame junction, the base end surface is equipped with the exciting vibrator, the circuit board subassembly is arranged in the shell inside, and the circuit board subassembly includes power and power amplifier module, signal processing system module and light transceiver and switch module. Through the ring network double link redundancy connection of optical cable, realize all-optical network communication, solved the problem that traditional network cable long distance transmission needs to increase relay equipment, and avoided the network breakage, error rate and other disadvantages caused by the traditional network cable because of the electromagnetic interference, can be used as the central node of the broadcast area, expands the connection many traditional constant voltage ceiling loudspeakers, improves the coverage efficiency of broadcast signal.

Description

Technical Field

[0001] This utility model relates to the field of public broadcasting digital terminal facilities, specifically to an IP ceiling speaker with full optical network transmission. Background Technology

[0002] In the field of broadcasting systems, traditional signal transmission methods mostly rely on cables to transmit broadcast signals to loudspeakers. Such equipment suffers from significant line loss during cable transmission, affecting the quality of audio signal transmission. Furthermore, cables themselves are expensive and have weak resistance to interference in complex environments, making them susceptible to external factors that can negatively impact broadcast performance.

[0003] Currently, with the development of IP network broadcasting technology, Ethernet cables are used for signal transmission in practical applications. The transmission distance needs to be extended using relay equipment such as switches. In large venues such as rail transit and airports, the distance from the control room to the loudspeakers in each zone often exceeds hundreds of meters or even reaches several kilometers, necessitating the installation of relay equipment in between. This not only increases system complexity but also raises maintenance costs. Furthermore, the network connectors for existing network cables connecting to IP loudspeakers are prone to aging, leading to network outages and equipment malfunctions, severely impacting the stability and reliability of the broadcasting system.

[0004] The shortcomings of these existing technologies make it difficult to achieve efficient and stable broadcast signal coverage in scenarios such as civil aviation airports and rail transit subways, where there are high requirements for transmission distance, anti-interference ability and system stability. Therefore, there is an urgent need for a new type of broadcast loudspeaker terminal equipment that can solve the above problems. Utility Model Content

[0005] The purpose of this invention is to provide an IP ceiling speaker with all-optical network transmission to solve the above problems. It connects to the network through a dual-link redundancy optical cable ring network to realize an all-optical network broadcasting system. This solves the problem of low reliability of traditional network cable-connected IP speakers and avoids the drawbacks of traditional network cables such as network outages and high error rates caused by electromagnetic interference.

[0006] A traditional ceiling speaker typically covers only 20-30 square meters. A broadcast area requires multiple ceiling speakers to ensure sound pressure uniformity. Using a large number of IP ceiling speakers would inevitably increase system costs. This new type of IP ceiling speaker features a 100V constant voltage extension output. This IP ceiling speaker with constant voltage extension output can serve as the central node of a broadcast area, extending and connecting multiple traditional constant voltage ceiling speakers, reducing the overall investment in the broadcast system and improving the coverage efficiency of the broadcast signal. Details are provided below.

[0007] To achieve the above objectives, the present invention provides the following technical solution:

[0008] This utility model provides an IP ceiling speaker with full optical network transmission, comprising:

[0009] The housing is provided with dual optical network interfaces, constant voltage output terminals and power input terminals;

[0010] The frame is connected to the bottom opening of the outer shell;

[0011] A base is fixed at the junction of the outer shell and the frame, and an excitation oscillator is provided on the end face of the base;

[0012] A circuit board assembly is disposed inside the housing. The circuit board assembly includes a power supply and power amplifier module, a signal processing system module, and an optical transceiver and switch module. The signal processing system module includes a decoding control unit, an environmental noise detection unit, and a wireless receiving unit.

[0013] A vibrating diaphragm plate is fixed to the surface of the excitation oscillator outside the base;

[0014] An audio constant voltage 100V output transformer is built into the top of the housing.

[0015] The aforementioned IP ceiling speaker with all-optical network transmission is installed in the designated location. Multiple speakers are connected in series via a fiber optic ring network using the dual-optical network interface on the casing to form an all-optical network broadcasting system, enabling all-optical transmission of broadcast signals. A 220V power supply is connected to the power input terminal on the casing to power the internal power supply and power amplifier module, ensuring normal startup. When external speakers need to be connected, the IP ceiling speaker is connected to nearby traditional ceiling speakers via the constant voltage output terminal on the casing, using the IP ceiling speaker as the central node to achieve broadcast signal coverage of the surrounding space.

[0016] Preferably, the dual-optical network interface is used to enable the access and output of Ethernet network signals, and the dual-optical network interface is electrically connected to the optical transceiver and switch module.

[0017] Preferably, the constant voltage output terminal is electrically connected to the audio constant voltage 100V output transformer for outputting constant voltage audio signals, and can be expanded to connect multiple external ceiling speakers.

[0018] Preferably, the power input terminal is electrically connected to the power supply and power amplifier module to provide power to the entire speaker system.

[0019] Preferably, the system also includes a fixing frame and a honeycomb panel. The fixing frame is fixed to the top side of the base and includes a bottom metal isolation plate, a top metal isolation plate, and a connecting column connecting the bottom metal isolation plate and the top metal isolation plate.

[0020] Preferably, the circuit board assembly is fixed between the bottom metal isolation plate and the top metal isolation plate, the excitation oscillator is connected to the diaphragm plate to drive the diaphragm plate to generate audio vibration, and the honeycomb plate serves as a speaker grille and is installed corresponding to the bottom opening of the frame.

[0021] Preferably, the bottom metal isolation plate and the top metal isolation plate provide electromagnetic shielding for the circuit board assembly, and the connecting post is used to fix the relative positions of the bottom metal isolation plate, the top metal isolation plate and the circuit board assembly.

[0022] Preferably, the power supply and power amplifier module provides power support and power amplification for the signal processing system module, the optical transceiver and switch module, the excitation oscillator, and the audio constant voltage 100V output transformer.

[0023] The beneficial effects are as follows: 1. By adopting all-optical network communication and connecting through optical cable ring network, the distance from the broadcasting room to the broadcasting device is no longer limited, which solves the problem that traditional long-distance transmission via network cable requires the addition of relay equipment. It is especially suitable for long-distance use scenarios such as control rooms in rail transit and airports to loudspeakers in various zones.

[0024] 2. Using optical fiber to transmit broadcast signals avoids the drawbacks of traditional network cables, such as network outages and high error rates caused by electromagnetic interference, thus ensuring the stability and reliability of broadcast signal transmission.

[0025] 3. Fiber optic cables are cheaper than traditional network cables, and the ceiling speaker with constant voltage extended output can serve as the central node of the broadcast area, extending and connecting multiple traditional constant voltage ceiling speakers, reducing the overall investment in the broadcast system, and improving the coverage efficiency of the broadcast signal. Attached Figure Description

[0026] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0027] Figure 1 This is the main view structural diagram of this utility model;

[0028] Figure 2This is a three-dimensional structural schematic diagram of the present invention;

[0029] Figure 3 This is a top view of the structure of this utility model;

[0030] Figure 4 This is a structural breakdown diagram of the present invention;

[0031] Figure 5 This is a three-dimensional structural diagram of another aspect of the present invention;

[0032] Figure 6 This is a structural dissection diagram of another aspect of this utility model;

[0033] Figure 7 This is a schematic diagram of the internal structure of the outer shell of this utility model;

[0034] Figure 8 This is a schematic diagram of the circuit board assembly of this utility model;

[0035] Figure 9 This is a partial structural disassembly diagram of this utility model;

[0036] Figure 10 This is a schematic diagram of the connection of the external speaker of this utility model.

[0037] The annotations in the attached figures are explained as follows:

[0038] 1. Housing; 101. Dual optical network interface; 102. Constant voltage output terminal; 103. Power input terminal; 2. Frame; 3. Base; 301. Excitation oscillator; 4. Mounting bracket; 401. Bottom metal isolation plate; 402. Top metal isolation plate; 403. Connecting post; 5. Circuit board assembly; 501. Power supply and power amplifier module; 502. Signal processing system module; 503. Optical transceiver and switch module; 6. Vibrating diaphragm; 7. Audio constant voltage 100V output transformer; 8. Cellular panel. Detailed Implementation

[0039] To make the objectives, technical solutions, and advantages of this utility model clearer, the technical solutions of this utility model will be described in detail below. Obviously, the described embodiments are only a part of the embodiments of this utility model, and not all of them. Based on the embodiments of this utility model, all other implementation methods obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0040] See Figures 1-10 As shown, this utility model provides an IP ceiling speaker with all-optical network transmission, comprising:

[0041] The housing 1 is provided with a dual optical network interface 101, a constant voltage output terminal 102 and a power input terminal 103, which are used to protect the internal components and provide an external interface mounting carrier.

[0042] The frame 2 is connected to the bottom opening of the outer shell 1 and is used to seal the connection gap between the outer shell 1 and the base 3, enhance the structural stability and help fix the vibrating diaphragm 6.

[0043] The base 3 is fixed at the junction of the outer shell 1 and the frame 2. The end face of the base 3 is provided with an excitation oscillator 301, which is used to support the excitation oscillator 301 and transmit the vibration energy to the vibrating diaphragm 6.

[0044] The circuit board assembly 5 is disposed inside the housing 1. The circuit board assembly 5 includes a power supply and power amplifier module 501, a signal processing system module 502, and an optical transceiver and switch module 503. The signal processing system module 502 includes a decoding control unit, a modular environmental noise detection unit, and a modular wireless receiving unit. The modular environmental noise detection unit and the modular wireless receiving unit can be combined in a modular manner according to the user's order requirements.

[0045] The vibrating diaphragm 6 is fixed to the surface of the excitation oscillator 301 outside the base 3, and is used to convert the mechanical vibration of the electrical signal into audible audio sound waves.

[0046] The audio constant voltage 100V output transformer 7 is built into the top of the housing 1. It can also be used as a high voltage power amplifier to achieve 100V constant voltage output, which is used to convert the processed audio signal into a constant voltage 100V signal to meet the signal input requirements of traditional constant voltage ceiling speakers.

[0047] As an optional implementation, the dual-optical network interface 101 is used to realize the access and output of Ethernet network signals, and the dual-optical network interface 101 is electrically connected to the optical transceiver and switch module 503. With this configuration, an all-optical transmission path can be constructed through the optical cable ring network, which can break through the transmission distance limitation of traditional network cables and realize long-distance signal transmission without repeaters.

[0048] The constant voltage output terminal 102 is electrically connected to the audio constant voltage 100V output transformer 7 to output constant voltage audio signals. It can be expanded to connect multiple ceiling speakers. With this setup, the surrounding space is covered by a single IP speaker as the central node, which greatly reduces the cost of deploying multiple IP devices.

[0049] The power input terminal 103 is electrically connected to the power supply and power amplifier module 501 to provide power to the entire speaker system. This configuration ensures a stable power supply to each module through the 220V AC mains input, ensuring continuous operation of the equipment.

[0050] It also includes a mounting bracket 4 and a honeycomb panel 8. The mounting bracket 4 is fixed to the top side of the base 3. The mounting bracket 4 includes a bottom metal isolation plate 401, a top metal isolation plate 402, and a connecting column 403 connecting the bottom metal isolation plate 401 and the top metal isolation plate 402. This arrangement provides a rigid mounting structure for the circuit board assembly 5, while achieving electromagnetic shielding through the metal isolation plate.

[0051] The circuit board assembly 5 is fixed between the bottom metal isolation plate 401 and the top metal isolation plate 402. The excitation oscillator 301 is connected to the diaphragm plate 6 to drive the diaphragm plate 6 to generate audio vibration. The honeycomb plate 8 serves as a speaker grille and is installed at the bottom of the frame 2 to protect the diaphragm plate 6 and optimize the sound wave diffusion path, thereby reducing sound diffraction interference.

[0052] The bottom metal isolation plate 401 and the top metal isolation plate 402 provide electromagnetic shielding for the circuit board assembly 5. The connecting post 403 is used to fix the relative positions of the bottom metal isolation plate 401, the top metal isolation plate 402 and the circuit board assembly 5, thereby avoiding external electromagnetic interference from affecting signal processing accuracy and preventing poor contact caused by loose components.

[0053] The power supply and power amplifier module 501 provides power support and power amplification for the signal processing system module 502 and the optical transceiver and switch module 503, and can dynamically adjust the output power according to the feedback of the environmental noise detection unit to achieve adaptive closed-loop volume control.

[0054] Using the above structure, the IP ceiling speaker is installed in the designated location. Multiple IP ceiling speakers are connected via a fiber optic cable to the dual-optical network interface 101 on the housing 1, forming a full-optical network broadcasting system for full-optical transmission of broadcast signals. A 220V power supply is connected to the power input terminal 103 on the housing 1 to power the internal power supply and power amplifier module 501, ensuring normal startup of the speaker. When external speakers need to be connected, the IP ceiling speaker is connected to nearby conventional ceiling speakers via the constant voltage output terminal 102 on the housing 1, using the IP ceiling speaker as the central node to achieve broadcast signal coverage of the surrounding space (e.g., ...). Figure 10 (as shown)

[0055] By employing all-optical network communication and constructing a redundant ring network using optical cables, it is ensured that a fault in the middle of the optical cable will not cause a system outage or interruption of broadcasting. Furthermore, the distance between the broadcast control room and the broadcasting equipment is no longer limited, solving the problem of needing to add repeater equipment for long-distance transmission via traditional network cables. This is particularly suitable for scenarios such as rail transit and airports where control rooms are used for long-distance transmission to loudspeakers in various zones.

[0056] Using fiber optic cables to transmit broadcast signals avoids the drawbacks of traditional network cables, such as network outages and high error rates caused by electromagnetic interference, thus ensuring the stability and reliability of broadcast signal transmission.

[0057] Fiber optic cables are cheaper than traditional network cables, and the ceiling speaker with constant voltage extended output can serve as the central node of the broadcast area, extending and connecting multiple traditional constant voltage ceiling speakers, reducing the overall investment in the broadcast system, and improving the coverage efficiency of the broadcast signal.

[0058] The above description is merely a specific embodiment of this utility model, but the protection scope of this utility model is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this utility model should be included within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the protection scope of the claims.

Claims

1. An IP ceiling speaker with all-optical network transmission, characterized in that, include: The housing (1) is provided with a dual optical network interface (101), a constant voltage output terminal (102) and a power input terminal (103). The frame (2) is connected to the bottom opening of the outer shell (1); The base (3) is fixed at the junction of the outer shell (1) and the frame (2), and the end face of the base (3) is provided with an excitation oscillator (301). The circuit board assembly (5) is disposed inside the housing (1). The circuit board assembly (5) includes a power supply and power amplifier module (501), a signal processing system module (502), and an optical transceiver and switch module (503). The signal processing system module (502) includes a decoding control unit, an environmental noise detection unit, and a wireless receiving unit. A vibrating diaphragm plate (6) is fixed to the surface of the excitation oscillator (301) outside the base (3); An audio constant voltage 100V output transformer (7) is built into the top of the housing (1).

2. The IP ceiling speaker with all-optical network transmission according to claim 1, characterized in that, The dual-optical network interface (101) is used to realize the access and output of Ethernet network signals, and the dual-optical network interface (101) is electrically connected to the optical transceiver and switch module (503).

3. The IP ceiling speaker with all-optical network transmission according to claim 1, characterized in that, The constant voltage output terminal (102) is electrically connected to the audio constant voltage 100V output transformer (7) for outputting constant voltage audio signals, and can be extended to connect multiple ceiling speakers.

4. An IP ceiling speaker with all-optical network transmission according to claim 1, characterized in that, The power input terminal (103) is electrically connected to the power supply and power amplifier module (501) to provide power to the entire speaker system.

5. An IP ceiling speaker with all-optical network transmission according to claim 1, characterized in that, It also includes a fixing frame (4) and a honeycomb panel (8). The fixing frame (4) is fixed to the top side of the base (3). The fixing frame (4) includes a bottom metal isolation plate (401), a top metal isolation plate (402), and a connecting column (403) connecting the bottom metal isolation plate (401) and the top metal isolation plate (402).

6. An IP ceiling speaker with all-optical network transmission according to claim 5, characterized in that, The circuit board assembly (5) is fixed between the bottom metal isolation plate (401) and the top metal isolation plate (402). The excitation oscillator (301) is connected to the diaphragm plate (6) and is used to drive the diaphragm plate (6) to generate audio vibration. The honeycomb plate (8) serves as a speaker grille and is installed corresponding to the bottom opening of the frame (2).

7. An IP ceiling speaker with all-optical network transmission according to claim 5, characterized in that, The bottom metal isolation plate (401) and the top metal isolation plate (402) provide electromagnetic shielding for the circuit board assembly (5), and the connecting post (403) is used to fix the relative positions of the bottom metal isolation plate (401), the top metal isolation plate (402) and the circuit board assembly (5).

8. An IP ceiling speaker with all-optical network transmission according to claim 1, characterized in that, The power supply and power amplifier module (501) provides power support and power amplification for the signal processing system module (502), the optical transceiver and switch module (503), the excitation oscillator (301), and the audio constant voltage 100V output transformer (7).

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