Four-way networked digital power amplifier broadcasting equipment

Abstract

The utility model relates to the field of power amplifier equipment, in particular to four-way networked digital power amplifier broadcasting equipment, a plurality of modules are integrated in a 2U case to form an integrated structure, and each module comprises an input module used for receiving an input signal; the power amplifier module is used for amplifying the decoded signal; the backup module is used for outputting 100V constant-voltage backup broadcast signals; the input end of the network decoding module is connected with the input module, the output end of the network decoding module is connected with the power amplifier module and the backup module, and the network decoding module is used for decoding signals, judging whether the network state is normal or not, enabling the network decoding module to output decoded signals to the power amplifier module when the network state is normal, and outputting the decoded signals to the backup module when the network state is normal. And when the network state is off, the decoding module is switched to output the decoded signal to the backup module. According to the equipment, the cost can be reduced, the installation process is simplified, and the reliability of broadcast equipment is improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of power amplifier equipment, in particular to a four-way networked digital power amplifier broadcasting equipment. BACKGROUND

[0002] The existing networked broadcasting system generally includes a networked control host, a network decoding terminal and a pure post-stage power amplifier, and the like, which are multiple independent devices. The devices are usually connected through a serial port and an audio line to realize data transmission and acquisition. However, the traditional system architecture has disadvantages.

[0003] In the traditional system, the connection between the devices depends on external lines. These lines are easily affected by external factors such as poor contact, thereby causing the entire broadcasting system to fail. Moreover, in multiple places, one networked control host often needs to control multiple network decoding terminals and pure post-stage power amplifiers, which not only increases the number of devices required to be installed, making the system layout disorganized, but also increases the risk of errors in the installation and debugging process. CONTENT OF THE UTILITY MODEL

[0004] The present application provides a four-way networked digital power amplifier broadcasting equipment, which can reduce the cost and simplify the installation process, and improve the reliability of the broadcasting equipment.

[0005] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme:

[0006] The utility model provides a four-way networked digital power amplifier broadcasting equipment, a plurality of each module is integrated in a 2U machine case, forms integrated structure, and the module includes:

[0007] The input module includes a network signal input interface for receiving an input signal.

[0008] The power amplifier module is used for amplifying the decoded signal.

[0009] The backup module is used for outputting a 100V constant voltage backup broadcasting signal.

[0010] The network decoding module is connected to the input module at the input end, connected to the power amplifier module and the backup module at the output end, used for decoding the signal and judging whether the network state is normal, when the network state is normal, the network decoding module outputs the decoded signal to the power amplifier module, and when the network state is disconnected, the network decoding module is switched to output the decoded signal to the backup module.

[0011] In a preferred example of the present application, the network decoding module can be further configured to use an SSD212 master to network decode the signal.

[0012] In a preferred example of the present application, the strong broadcast output module is further configured to include an EMC 24V strong broadcast output interface.

[0013] In a preferred example of the present application, the strong broadcast output module is further configured to include a short-circuit dry contact interface for outputting a short-circuit signal.

[0014] In a preferred example of the present application, the input module is further configured to include an AUX signal input, an AUX signal output, and a microphone signal input interface.

[0015] In a preferred example of the present application, the device further includes:

[0016] a timing play module for playing at a network offline local timing point and storing a backup of the timing program.

[0017] In a preferred example of the present application, the network signal input interface is an RJ45 network input interface.

[0018] In a preferred example of the present application, the device further includes a power module including an AC_DC power amplifier power supply for supplying power to the power amplifier module.

[0019] In a preferred example of the present application, the power module further includes an AC_DC auxiliary power supply for supplying power to the network decoding module and the output switching module.

[0020] In a preferred example of the present application, the number of network decoding modules is four, the number of power amplifier modules is four, and the number of AC_DC power amplifier power supplies is two.

[0021] In summary, compared with the prior art, the technical scheme provided by the embodiments of the present application has at least the following beneficial effects:

[0022] 1. By modularizing the network decoding terminal and the pure post-stage power amplifier into one, and integrating them in a single device, the number of required devices is significantly reduced. This not only reduces the cost of purchasing devices, but also simplifies the module architecture of the device, making the overall installation and maintenance of the device more convenient.

[0023] 2. By integrating multiple functional modules into one device, the installation and wiring work of a large number of devices in traditional systems is avoided. This not only reduces the time and labor cost required for installation, but also reduces the risk of installation errors caused by the complexity of wiring and the large number of devices.

[0024] 3. The system integrates 100V constant voltage backup function, which can quickly switch to backup line when the main line or main device fails, ensuring the continuous operation of the broadcast equipment. This design improves the stability and reliability of the system, avoiding system failure caused by poor external line contact or device failure. BRIEF DESCRIPTION OF DRAWINGS

[0025] Figure 1 A module diagram of a four-way networked digital power amplifier broadcast equipment is provided for an embodiment of the present application.

[0026] Figure 2 A data flow diagram of a four-way networked digital power amplifier broadcast equipment is provided for an embodiment of the present application. DETAILED DESCRIPTION

[0027] The technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor are within the scope of protection of the present application.

[0028] In an embodiment of the present application, a four-way networked digital power amplifier broadcast equipment is provided, in which several modules are integrated in a 2U chassis to form an integrated structure, including:

[0029] The input module 100 includes a network signal input interface for receiving input signals.

[0030] The power amplifier module 200 is used to amplify the decoded signals.

[0031] The backup module 300 is used to output 100V constant voltage backup broadcast signals.

[0032] The network decoding module 400 has its input end connected to the input module and its output end connected to the power amplifier module and the backup module, and is used to decode signals and determine whether the network state is normal. When the network state is normal, the network decoding module outputs decoded signals to the power amplifier module, and when the network state is disconnected, the network decoding module switches to output decoded signals to the backup module.

[0033] In specific implementation, the connection mode of each module can be referred to Figure 1 .

[0034] The 100V constant voltage backup of the backup module is a widely used backup mechanism in broadcast systems. The 100V constant voltage backup refers to a backup line or device based on 100V constant voltage broadcast signals in addition to the main line or main device in the module design of the equipment. When the main line or main device fails, the system can automatically or manually switch to this backup line or device to ensure the continuous transmission of broadcast signals. In this equipment, using a 2U chassis as the shell has the advantages of moderate height, without occupying too much space, and providing enough internal space for installing hardware components of each module.

[0035] The 2U chassis refers to a specification of server chassis, where "2U" is a unit used to describe the height of a server cabinet or chassis. In the server field, "U" is the abbreviation of Unit, and 1U is equal to 1.75 inches (about 4.45 cm). Therefore, the height of a 2U chassis is 2U, i.e. 2 times 1.75 inches, equal to 3.5 inches (about 8.9 cm).

[0036] Further, the network decoding module uses an SSD212 master to network decode signals. The SSD212 master is a highly integrated embedded CPU chip launched by SigmaStar, which integrates a variety of functional interfaces such as Ethernet MAC+PHY, audio support ADC / DAC, UARTs, PWMs, GPIOS, and SPI, etc., achieving maximum flexibility of application programs. This highly integrated design makes the SSD212 more efficient in signal processing and network decoding, reducing the need for external components, and reducing system complexity and cost.

[0037] In this embodiment, the beneficial effects at least include:

[0038] 1. By modularizing the network decoding terminal and the pure post-stage power amplifier into one, and integrating them in a single device, the number of required devices is significantly reduced. This not only reduces the cost of purchasing equipment, but also simplifies the module architecture of the equipment, making the overall installation and maintenance of the equipment more convenient.

[0039] 2. By integrating multiple functional modules into one device, the installation and wiring work of a large number of devices in traditional systems is avoided. This not only reduces the time and labor cost required for installation, but also reduces the risk of installation errors caused by the complexity of wiring and multiple devices.

[0040] 3. The system integrates 100V constant voltage backup function, which can quickly switch to backup line when the main line or main device fails, ensuring the continuous operation of the broadcast equipment. This design improves the stability and reliability of the system, avoiding system failure caused by poor external line contact or equipment failure.

[0041] In some embodiments, a strong broadcast output module is further included, which is connected with the network decoding module and includes an EMC 24V strong broadcast output interface. The strong broadcast output module further includes a short-circuit dry contact interface for outputting a short-circuit signal.

[0042] In the embodiment, the device is provided with two strong broadcast output interfaces of EMC 24V and short-circuit dry contact, which can output DC 24V and short-circuit signal in the emergency broadcast state, thereby ensuring the timely communication of broadcast information in an emergency.

[0043] In some embodiments, the input module further includes an AUX signal input, an AUX signal output and a microphone signal input interface.

[0044] In the embodiment, the input module has AUX signal input / output and microphone signal input port, so that the device can input more flexible and diverse signals to meet the broadcast needs in different scenarios.

[0045] In some embodiments, the device further includes:

[0046] A timing play module is configured to play at a local timing point offline and store a backup of the timing program.

[0047] In the embodiment, the device is provided with an offline local timing point play function, which allows the backup of the timing program to be stored in the SD card and automatically backup the timing point program, so that the device can continue to play the broadcast content according to the predetermined plan without network connection.

[0048] In some embodiments, a power module is further included, which includes an AC_DC power amplifier power supply configured to supply power to the power amplifier module, and an AC_DC auxiliary power supply configured to supply power to the network decoding module and the output switching module.

[0049] In the embodiment, the AC_DC power amplifier power supply module and the AC_DC auxiliary power supply module are provided to supply power to the power amplifier module and the network decoding module, respectively. This design optimizes power management and improves the overall energy efficiency and stability of the device.

[0050] In some embodiments, the number of network decoding modules is four, the number of power amplifier modules is four, and the number of AC_DC power amplifier power supplies is two.

[0051] In specific implementation, as Figure 2As shown, the network decoding module includes two two-way independent signal processing and independent network decoding modules shown in the figure, and power amplifier modules 1-4, the number of AC_DC power amplifier power supplies is two, and one AC_DC power amplifier power supply supplies power to two power amplifier modules. Figure 2 The flow direction of the signals can be seen from the figure.

[0052] In this embodiment, although the device is in a highly integrated form, the modular design still retains scalability, and in the future, more functional modules can be added or existing modules can be upgraded as needed.

[0053] The technical features of the above embodiments can be combined in any manner. To make the description concise, not all possible combinations of the technical features in the above embodiments are described, but as long as the combinations of the technical features do not contradict, they should be considered as falling within the scope of the present disclosure. The above-described embodiments only express several implementation manners of the present application, and the description is more specific and detailed, but it should not be construed as limiting the scope of the utility model patent. It should be noted that for those skilled in the art, without departing from the concept of the present application, a number of modifications and improvements can be made, which are all within the scope of the present application. Therefore, the scope of the patent of the present application should be subject to the appended claims.

Claims

1. A four-way networked digital power amplifier broadcasting device, characterized by, Several modules are integrated in a 2U case to form an integrated structure, and the modules include: An input module including a network signal input interface for receiving an input signal; A power amplifier module for amplifying the decoded signal; A backup module for outputting a 100V constant voltage backup broadcast signal; A network decoding module, an input end of the network decoding module being connected to the input module, an output end of the network decoding module being connected to the power amplifier module and the backup module, the network decoding module being used for decoding the signal and judging whether the network state is normal, the network decoding module outputting the decoded signal to the power amplifier module when the network state is normal, and the network decoding module outputting the decoded signal to the backup module when the network state is disconnected.

2. The quadripole networked digital power amplifier broadcasting device according to claim 1, characterized in that, The network decoding module adopts an SSD212 main control to perform network decoding on the signal.

3. The quadripole networked digital power amplifier broadcasting device according to claim 1, characterized in that, Further comprising a strong broadcast output module, the strong broadcast output module being connected to the network decoding module, and including an EMC 24V strong broadcast output interface.

4. The quadripole networked digital power amplifier broadcasting device according to claim 3, characterized in that, The strong broadcast output module further includes a short-circuit dry contact interface, the short-circuit dry contact interface being used for outputting a short-circuit signal.

5. The quadripole networked digital power amplifier broadcasting device according to claim 2, characterized in that, The input module further includes an AUX signal input, an AUX signal output and a microphone signal input interface.

6. The quadripole networked digital power amplifier broadcasting device according to claim 1, characterized in that, Further comprising: A timing play module for playing at a local timing point offline and storing a backup of a timing program.

7. The quadripole networked digital power amplifier broadcasting device according to claim 1, characterized in that, The network signal input interface is an RJ45 network input interface.

8. The quadripole networked digital power amplifier broadcasting device according to claim 1, characterized in that, Further comprising a power module including an AC_DC power amplifier power supply, the AC_DC power amplifier power supply being used for supplying power to the power amplifier module.

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