阅读说明：本技术 一种智能广播控制设备系统 (Intelligent broadcast control equipment system ) 是由 李春华 郭远林 严松 谢岸海 周勇 钟文国 庞瑞杰 杨小辉 张峰 赵程辉 方文柏 于 2019-10-18 设计创作，主要内容包括：本发明公开了一种智能广播控制设备系统,包括：主控模块、主备切换模块、分区模块、主功放模块和备功放模块；所述主控模块用于对音频信号和控制信号进行信号处理；所述主备切换模块用于获取从所述主控模块输出的音频信号,并将所述音频信号分别传输至所述主功放模块和所述备功放模块；以及,接收分别由所述主功放模块和所述备功放模块传输过来的功率信号,并将所述功率信号传输至所述分区模块；所述主功放模块和所述备功放模块均用于获取由所述主备切换模块输入的音频信号,经过处理后向所述主备切换模块传输功率信号；所述分区模块用于接收由所述主备切换模块输出的功率信号,以现实推动喇叭。(The invention discloses an intelligent broadcast control equipment system, comprising: the main control module, the main/standby switching module, the partition module, the main power amplifier module and the standby power amplifier module; the main control module is used for processing the audio signal and the control signal; the main/standby switching module is used for acquiring the audio signals output from the main control module and respectively transmitting the audio signals to the main power amplifier module and the standby power amplifier module; receiving power signals respectively transmitted by the main power amplifier module and the standby power amplifier module, and transmitting the power signals to the partition module; the main power amplifier module and the standby power amplifier module are used for acquiring audio signals input by the main/standby switching module and transmitting power signals to the main/standby switching module after processing; the partition module is used for receiving the power signal output by the main/standby switching module so as to actually drive the loudspeaker.)

1. An intelligent broadcast control device system, comprising: the main control module, the main/standby switching module, the partition module, the main power amplifier module and the standby power amplifier module;

the main control module is used for processing the audio signal and the control signal;

the main/standby switching module is used for acquiring the audio signals output from the main control module and respectively transmitting the audio signals to the main power amplifier module and the standby power amplifier module; receiving power signals respectively transmitted by the main power amplifier module and the standby power amplifier module, and transmitting the power signals to the partition module;

the main power amplifier module and the standby power amplifier module are used for acquiring audio signals input by the main/standby switching module and transmitting power signals to the main/standby switching module after processing;

the partition module is used for receiving the power signal output by the main/standby switching module so as to actually drive the loudspeaker.

2. The intelligent broadcast control device system of claim 1, wherein the master control module comprises an MCU controller, a core board, a capacitive touch screen, a beidou satellite module, a fingerprint module, a network interface, a timing power supply, and a USB interface;

the core board is connected with the capacitive touch screen, the USB interface and the network interface respectively, and the core board is connected with the MCU controller;

the MCU controller is respectively connected with the Beidou satellite module, the fingerprint module and the time sequence power supply; the MCU controller is respectively connected with the main/standby switching module, the partition module, the main power amplification module and the standby power amplification module through an RS488 bus.

3. The intelligent broadcast control device system of claim 2, wherein the active-standby switching module comprises an amplifier, a CD40106 device, a 30kHz generation circuit, and a 30kHz separation circuit; the input end of the amplifier is connected with the audio input source of the main control module, and the output end of the amplifier is respectively connected with the main power amplification module and the standby power amplification module through shunt switches; the input end of the 30kHz separating circuit is connected with the output end of the main power amplifying module; the output end of the 30kHz separating circuit is connected with the MCU controller through the CD40106 device; the input end of the 30kHz separating circuit is connected with the output end of the MCU controller, and the output end of the 30kHz separating circuit is connected with the input end of the amplifier.

4. The smart broadcast control device system of claim 2 wherein the partition module comprises a voltage divider circuit, a transformer isolation circuit, a CD4051 device, an LM386 amplifier, a 21kHz generation circuit, and a 21kHz detection circuit;

the input end of the voltage division circuit is connected with the power input end of the main/standby switching module, and the output end of the voltage division circuit is connected with the transformer isolation circuit and then is connected to the monitoring circuit of the main control module; the voltage division circuit is connected with the loudspeaker, and the input end of the 21kHz detection circuit is connected with the output end of the loudspeaker; the LM386 amplifier is connected with a loudspeaker through the CD4051 device; the output end of the 21kHz generating circuit is connected with the input end of the LM386 amplifier.

5. The intelligent broadcast control device system of claim 2, wherein the main power amplifier module comprises a first M62429 device, a first JRC2762 device and a first digital power amplifier device; the first M62429 device, the first JRC2762 device and the first digital power amplifier are sequentially connected, an input end of the first M62429 device is connected with an audio output end of the main/standby switching module, and an output end of the first digital power amplifier is connected with a power input end of the main/standby switching module.

6. The intelligent broadcast control device system of claim 5, wherein the main power amplifier module further comprises a first protection circuit and a first level indication module, and the first digital power amplifier device is connected to the first protection circuit and the first level indication module, respectively.

7. The intelligent broadcast control device system of claim 2, wherein the backup power amplifier module comprises a second M62429 device, a second JRC2762 device and a second digital power amplifier device; the second M62429 device, the second JRC2762 device and the second digital power amplifier device are sequentially connected, an input end of the second M62429 device is connected with an audio output end of the main/standby switching module, and an output end of the second digital power amplifier device is connected with a power input end of the main/standby switching module.

8. The intelligent broadcast control device system of claim 7, wherein the backup power amplifier module further comprises a second protection circuit and a second level indication module, and the second digital power amplifier device is connected to the second protection circuit and the second level indication module respectively.

9. The intelligent broadcast control device system of claim 2, wherein the master control module further comprises a plurality of signal source input ports and electronic switches, the electronic switches are respectively connected to the plurality of signal source input ports, and the electronic switches are connected to the MCU controller.

10. The intelligent broadcast control device system of claim 9, wherein the master control module further comprises a DSP processor, the DSP processor being connected to the electronic switch.

Technical Field

The invention relates to the field of broadcast control equipment, in particular to an intelligent broadcast control equipment system.

Background

The existing broadcasting system is composed of independent devices, including a control host, an AM/FM tuner, a CD player, a program player, a preamplifier, a partition monitor, a partition detector, a main-standby switcher, a power supply chronograph and a power amplifier; the audio signals between the devices adopt unbalanced transmission, and an RS488 bus is adopted for control; the volume of the preamplifier, the channel monitored by the subareas, the volume of the power amplifier, the on-off state and the opening or closing of the subareas are adjusted by controlling the shuttle of the host, so that the state of the subareas, the monitored channel and the volume can be checked on the display screen of the host. However, the existing broadcasting system has numerous devices, low integration level, a large number of connecting lines between the devices, large system noise and increased system maintenance difficulty.

Disclosure of Invention

The invention provides an intelligent broadcast control equipment system, which interconnects and intercommunicates all functional modules by combining a main control module, a main/standby switching module, a partition module, a main power amplifier module and a standby power amplifier module, so as to solve the technical problems of numerous equipment and low integration level of the existing broadcast system, integrate all the functional modules into an equipment system, further realize the problems of excessive connecting lines between equipment and large system noise, and reduce the maintenance difficulty of the system.

In order to solve the above technical problem, an embodiment of the present invention provides an intelligent broadcast control apparatus system, including: the main control module, the main/standby switching module, the partition module, the main power amplifier module and the standby power amplifier module;

the main control module is used for processing the audio signal and the control signal;

the main/standby switching module is used for acquiring the audio signals output from the main control module and respectively transmitting the audio signals to the main power amplifier module and the standby power amplifier module; receiving power signals respectively transmitted by the main power amplifier module and the standby power amplifier module, and transmitting the power signals to the partition module;

the main power amplifier module and the standby power amplifier module are used for acquiring audio signals input by the main/standby switching module and transmitting power signals to the main/standby switching module after processing;

the partition module is used for receiving the power signal output by the main/standby switching module so as to actually drive the loudspeaker.

As a preferred scheme, the master control module comprises an MCU controller, a core board, a capacitive touch screen, a Beidou satellite module, a fingerprint module, a network interface, a time sequence power supply and a USB interface;

the core board is connected with the capacitive touch screen, the USB interface and the network interface respectively, and the core board is connected with the MCU controller;

the MCU controller is respectively connected with the Beidou satellite module, the fingerprint module and the time sequence power supply; the MCU controller is respectively connected with the main/standby switching module, the partition module, the main power amplification module and the standby power amplification module through an RS488 bus.

As a preferred scheme, the active/standby switching module comprises an amplifier, a CD40106 device, a 30kHz generating circuit and a 30kHz separating circuit; the input end of the amplifier is connected with the audio input source of the main control module, and the output end of the amplifier is respectively connected with the main power amplification module and the standby power amplification module through shunt switches; the input end of the 30kHz separating circuit is connected with the output end of the main power amplifying module; the output end of the 30kHz separating circuit is connected with the MCU controller through the CD40106 device; the input end of the 30kHz separating circuit is connected with the output end of the MCU controller, and the output end of the 30kHz separating circuit is connected with the input end of the amplifier.

Preferably, the partitioning module comprises a voltage division circuit, a transformer isolation circuit, a CD4051 device, an LM386 amplifier, a 21kHz generating circuit and a 21kHz detecting circuit;

the input end of the voltage division circuit is connected with the power input end of the main/standby switching module, and the output end of the voltage division circuit is connected with the transformer isolation circuit and then is connected to the monitoring circuit of the main control module; the voltage division circuit is connected with the loudspeaker, and the input end of the 21kHz detection circuit is connected with the output end of the loudspeaker; the LM386 amplifier is connected with a loudspeaker through the CD4051 device; the output end of the 21kHz generating circuit is connected with the input end of the LM386 amplifier.

As a preferred scheme, the main power amplifier module comprises a first M62429 device, a first JRC2762 device and first digital power amplifier equipment; the first M62429 device, the first JRC2762 device and the first digital power amplifier are sequentially connected, an input end of the first M62429 device is connected with an audio output end of the main/standby switching module, and an output end of the first digital power amplifier is connected with a power input end of the main/standby switching module.

As a preferred scheme, the main power amplifier module further includes a first protection circuit and a first level indication module, and the first digital power amplifier device is connected to the first protection circuit and the first level indication module respectively.

As a preferred scheme, the standby power amplifier module comprises a second M62429 device, a second JRC2762 device and second digital power amplifier equipment; the second M62429 device, the second JRC2762 device and the second digital power amplifier device are sequentially connected, an input end of the second M62429 device is connected with an audio output end of the main/standby switching module, and an output end of the second digital power amplifier device is connected with a power input end of the main/standby switching module.

As a preferred scheme, the standby power amplifier module further includes a second protection circuit and a second level indication module, and the second digital power amplifier device is connected to the second protection circuit and the second level indication module respectively.

As a preferred scheme, the main control module further comprises a plurality of signal source input ports and an electronic switch, the electronic switch is respectively connected with the plurality of signal source input ports, and the electronic switch is connected with the MCU controller.

As a preferred scheme, the main control module further comprises a DSP processor, and the DSP processor is connected with the electronic switch.

Compared with the prior art, the embodiment of the invention has the following beneficial effects:

according to the invention, through the combined use of the main control module, the main/standby switching module, the partition module, the main power amplifier module and the standby power amplifier module, all the functional modules are interconnected and intercommunicated, so that the technical problem that the existing broadcasting system has numerous devices and low integration level is solved, all the functional modules are integrated into one device system, the problems of excessive connecting lines between the devices and large system noise are further solved, and the system maintenance difficulty is reduced.

Drawings

FIG. 1: the invention is a schematic structural diagram of an intelligent broadcast control equipment system in the embodiment of the invention;

FIG. 2: is a schematic structural diagram of a main control module in the embodiment of the invention;

FIG. 3: the invention is a schematic structural diagram of a main/standby switching module in the embodiment of the invention;

FIG. 4: the invention is a structural schematic diagram of a partition module in the embodiment of the invention;

FIG. 5: the invention discloses a main power amplifier module and a standby power amplifier module.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1 to 5, a preferred embodiment of the present invention provides an intelligent broadcast control apparatus system, including: the main control module, the main/standby switching module, the partition module, the main power amplifier module and the standby power amplifier module;

all audio and control signals are transferred by the main control part to realize signal processing, a sound source is generated by the main control part and then is sent to the main-standby switching module, the sound source is divided into two parts and respectively sent to the main-standby power amplifiers, power signals of the main-standby power amplifiers are respectively returned to the main-standby switching module, and are sent to the partition module after being processed by the main-standby switching module, and finally the loudspeaker is pushed; the control signal adopts an RS485 bus to send the state of each module to the MCU of the main control part, and each module is detected and controlled in real time.

In the system, the main control module is used for processing audio signals and control signals;

in this embodiment, the main control module includes an MCU controller, a core board, a capacitive touch screen, a beidou satellite module, a fingerprint module, a network interface, a time-sequence power supply, and a USB interface; the core board is connected with the capacitive touch screen, the USB interface and the network interface respectively, and the core board is connected with the MCU controller; the MCU controller is respectively connected with the Beidou satellite module, the fingerprint module and the time sequence power supply; the MCU controller is respectively connected with the main/standby switching module, the partition module, the main power amplification module and the standby power amplification module through an RS488 bus.

In this embodiment, the main control module further includes a plurality of signal source input ports and an electronic switch, the electronic switch is respectively connected to the plurality of signal source input ports, and the electronic switch is connected to the MCU controller. In this embodiment, the main control module further includes a DSP processor, and the DSP processor is connected to the electronic switch.

Referring to fig. 2, the main control module implements the steps of:

1: the 7-inch capacitive touch screen is connected with an S3C2416ARM926 core board, and is operated on a graphical interface of the capacitive touch screen to control all signals of the machine;

2: collecting fingerprints through a fingerprint module, inputting the fingerprints into a local computer, and after the power-on permission is set, touching the fingerprint module by the fingerprints, judging whether the fingerprints are correct by an MCU (microprogrammed control Unit) and determining whether the local computer is operated by the user;

3: the Beidou satellite module collects time in real time, and each MCU is communicated with the Beidou satellite module in 10ms through a serial port, so that the time precision of the equipment is ensured;

4: the relay is opened or closed by operating the UI interface of the capacitive screen, 8 paths of time sequence power supplies are controlled, and each path of output power of the power supplies can reach 1000W;

5: the signal source comprises 5-path input (AUX 1-AUX 5), 3-path microphone input (MIC 1-MIC 3), MP3, AM/FM tuner, clock and fire-fighting signals, the signal source is input into an electronic switch MT8816, through the operation of a capacitive screen, a signal is output to an ADAU1701 for DSP processing, 10-segment equalization and volume adjustment can be carried out, the adjusted signal is output to main/standby switching and on-site sampling and recording at a high speed of 16 bits and 32k/S, and the recorded signal is stored in an internal memory of an S3C2416ARM926 core board;

6: the PC end is connected with the network interface, and can remotely control the operation of the computer;

7: and detecting the states of the main/standby switching module, the partition module and the main/standby power amplifier in real time through an RS488 bus.

In the system, the main/standby switching module is used for acquiring the audio signals output from the main control module and respectively transmitting the audio signals to the main power amplifier module and the standby power amplifier module; receiving power signals respectively transmitted by the main power amplifier module and the standby power amplifier module, and transmitting the power signals to the partition module;

in this embodiment, the active/standby switching module includes an amplifier, a CD40106 device, a 30kHz generation circuit, and a 30kHz separation circuit; the input end of the amplifier is connected with the audio input source of the main control module, and the output end of the amplifier is respectively connected with the main power amplification module and the standby power amplification module through shunt switches; the input end of the 30kHz separating circuit is connected with the output end of the main power amplifying module; the output end of the 30kHz separating circuit is connected with the MCU controller through the CD40106 device; the input end of the 30kHz separating circuit is connected with the output end of the MCU controller, and the output end of the 30kHz separating circuit is connected with the input end of the amplifier.

Referring to fig. 3, the main/standby switching module includes:

the audio signal from the main control part and the 30kHz signal are reversely differentially amplified and then sent to a main power amplifier, 1 path is sent to a partition module, the other 1 path is shaped to an MCU (microprogrammed control unit) through a 30kHz separating circuit and detected through a 40106, when the 30kHz signal is sent to the main power amplifier, the MCU can detect the 30kHz signal, the main power amplifier is normal, and the main power amplifier is switched to a standby power amplifier if the main power amplifier cannot be detected; similarly, when the 30kHz signal is sent to the standby power amplifier, the MCU can detect the 30kHz signal, the standby power amplifier is normal, and the MCU can switch to the main power amplifier if the standby power amplifier cannot be detected; the main and standby states are uploaded to the main control part through the RS488 bus.

In the system, the partition module is used for receiving the power signal output by the main/standby switching module so as to actually drive the loudspeaker.

In this embodiment, the partitioning module includes a voltage dividing circuit, a transformer isolation circuit, a CD4051 device, an LM386 amplifier, a 21kHz generating circuit, and a 21kHz detecting circuit; the input end of the voltage division circuit is connected with the power input end of the main/standby switching module, and the output end of the voltage division circuit is connected with the transformer isolation circuit and then is connected to the monitoring circuit of the main control module; the voltage division circuit is connected with the loudspeaker, and the input end of the 21kHz detection circuit is connected with the output end of the loudspeaker; the LM386 amplifier is connected with a loudspeaker through the CD4051 device; the output end of the 21kHz generating circuit is connected with the input end of the LM386 amplifier.

Referring to fig. 4, the partition module implementation steps are as follows:

the power signals of the main and standby switching modules are controlled by a capacitive screen of the main control part and are switched on through a relay to drive a loudspeaker, and are sent to a monitoring circuit of the main control part through a voltage division circuit and a transformer isolation circuit, so that any partition can be monitored; the generated 21kHz signals are amplified by the LM386 and are sent to the loudspeakers through the CD4051 in turn, the resistance value and the number of the loudspeakers are calculated by judging the size of the signals detected by the 21kHz detection circuit through the MCU, and all the states of the partitions are uploaded to the main control part through the RS488 bus.

In the system, the main power amplifier module and the standby power amplifier module are both used for acquiring audio signals input by the main/standby switching module, and transmitting power signals to the main/standby switching module after processing;

in this embodiment, the main power amplifier module includes a first M62429 device, a first JRC2762 device, and a first digital power amplifier device; the first M62429 device, the first JRC2762 device and the first digital power amplifier are sequentially connected, an input end of the first M62429 device is connected with an audio output end of the main/standby switching module, and an output end of the first digital power amplifier is connected with a power input end of the main/standby switching module. In this embodiment, the main power amplifier module further includes a first protection circuit and a first level indication module, and the first digital power amplifier device is connected to the first protection circuit and the first level indication module, respectively.

In this embodiment, the standby power amplifier module includes a second M62429 device, a second JRC2762 device, and a second digital power amplifier device; the second M62429 device, the second JRC2762 device and the second digital power amplifier device are sequentially connected, an input end of the second M62429 device is connected with an audio output end of the main/standby switching module, and an output end of the second digital power amplifier device is connected with a power input end of the main/standby switching module. In this embodiment, the standby power amplifier module further includes a second protection circuit and a second level indication module, and the second digital power amplifier device is connected to the second protection circuit and the second level indication module respectively.

Referring to fig. 5, the power amplifier module includes:

after passing through an electronic volume IC M62429, an audio signal switched between the main and the standby is sent to a digital power amplifier through JRC2762 pressure limit and sent to a main and standby switching power end; the power amplifier has direct current, temperature and overload protection, and has signal, over-temperature, distortion and power supply indication; the main control part can control the volume of the power amplifier of the MCU through an RS488 bus, and monitor the state of the MCU in real time.

The invention integrates the functions of the prior broadcasting system into one, namely intelligent broadcasting control equipment; the main and standby switcher, the partition detector, the partition monitor and the power amplifier are made into card insertion type modules, and all the functional modules are interconnected; the control adopts a 7-inch capacitive screen, and the graphical operation interface displays the centralized state and controls the touch operation; the power amplifier adopts a digital power amplifier, so that the efficiency is high; the accuracy of equipment time is guaranteed by adopting Beidou satellite timing; fingerprint collection is added, and the safety and reliability of equipment use are effectively increased.

The technical scheme has the advantages that:

1: the device adopts a 7-inch capacitive touch screen, the interface is graphical, and the operation is visual and clear at a glance;

2: fingerprint identification is added, the requirement on authentication of equipment use is higher, and the safety and the height of the used equipment are improved;

3: the Beidou satellite is adopted for timing, and the time service precision is less than 30 ns;

4: the modular design is adopted, connecting wires are reduced, the equipment is reliable, the signal to noise ratio is higher, and the installation and maintenance are easy;

5: the power amplifier adopts a D-type power amplifier, and a switching power supply supplies power, so that the efficiency of output power is improved, and the assembly difficulty is reduced.

The above-mentioned embodiments are provided to further explain the objects, technical solutions and advantages of the present invention in detail, and it should be understood that the above-mentioned embodiments are only examples of the present invention and are not intended to limit the scope of the present invention. It should be understood that any modifications, equivalents, improvements and the like, which come within the spirit and principle of the invention, may occur to those skilled in the art and are intended to be included within the scope of the invention.