CN209913829U - Multi-channel frequency modulation broadcast monitor - Google Patents
Multi-channel frequency modulation broadcast monitor Download PDFInfo
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- CN209913829U CN209913829U CN201920776309.8U CN201920776309U CN209913829U CN 209913829 U CN209913829 U CN 209913829U CN 201920776309 U CN201920776309 U CN 201920776309U CN 209913829 U CN209913829 U CN 209913829U
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Abstract
The utility model discloses a multichannel frequency modulation broadcast monitor, including 4 way audio frequency demodulator boards, the upper end of 4 way audio frequency demodulator boards is connected with audio encoder through the audio frequency line, the lower extreme of 4 way audio frequency demodulator boards is connected with the network module through 232 wiring, one side of network module is connected with the 4G router through the net twine, and the 4G router passes through the net twine with audio encoder and is connected. A multichannel frequency modulation broadcast monitor, the network module of setting is monitored by remote software data acquisition through network interface, can monitor 3 sets of radio programs, look over 3 sets of radio programs's dynamic audio frequency level and look over 3 sets of radio programs's receiving field intensity and technical parameter such as SNR in the long-range real-time supervision of surveillance center, the utility model discloses an equipment is plugged in the power, just can use, simple to operate also is applicable to field installation, through 4G router and internet transmission, does not receive the monitoring distance influence, brings better use prospect.
Description
Technical Field
The utility model relates to a frequency modulation broadcasting technology field, concretely relates to multichannel frequency modulation broadcasting monitor.
Background
In recent years, with the rapid development of the broadcast and television industry in China, the influence of broadcasting is deepened into cities and countryside in China, becomes an indispensable part in political, economic and cultural life of the masses, and is a bridge for parties and governments to contact the masses, so that how to ensure safe broadcasting is an important task and topic of all levels of broadcast and television stations;
most of radio and television transmitter rooms are located in remote areas, the rooms are unattended, the equipment runs for 24 hours, daily monitoring and the like are mainly carried out through channels such as local contact personnel, audiences and channels, reaction is delayed often, technical personnel cannot know the broadcasting situation at the first time, the broadcasting stopping, bad broadcasting and illegal inter-cut possibilities exist, safe broadcasting cannot be guaranteed, although the problems can be solved by establishing a transmitter room remote monitoring system, the radio and television transmitter rooms are quite inexperienced and delayed and cannot be implemented due to the reasons of large investment, more equipment, long construction period, fixed single monitoring point, complex system maintenance and the like, and certain influence is brought to the using process of people.
Disclosure of Invention
The utility model aims at providing a multichannel frequency modulation broadcast monitor.
In order to achieve the above purpose, the utility model discloses a following technical scheme realizes:
the utility model provides a multichannel frequency modulation broadcast monitor, includes 4 way audio demodulator boards, the upper end of 4 way audio demodulator boards is connected with audio codec through the audio line, the lower extreme of 4 way audio demodulator boards is connected with the network module through 232 wiring, one side of network module is connected with the 4G router through the network line, and the 4G router passes through the network line with audio codec and is connected, the network module is monitored by remote software acquisition data through network interface.
Furthermore, one side of the 4-channel audio demodulator board is connected with 4-channel demodulator antennas, the lower end of the 4-channel audio demodulator board is connected with a transformer, the transformer is connected with a switching power supply through a power line, and the switching power supply converts 220V alternating current into direct current required by equipment work and provides the direct current required by the work of each module.
Further, 4 external 4 routes demodulator antennas of 4 way audio demodulator boards can receive 4 way broadcast signals simultaneously, audio codec exports the analog audio frequency and is used for remote monitoring, be provided with MCU main control chip on the 4 way audio demodulator boards, can gather technical parameter such as field intensity, SNR of 4 way broadcast signals in real time, link to each other with the network module through 232 interfaces simultaneously for remote communication, still be provided with main demodulation chip on the 4 way audio demodulator boards, and main demodulation chip and MCU main control chip real-time communication, main demodulation chip is car rule radio receiving chip for receiving broadcast audio frequency, export analog audio frequency, detection field intensity, SNR etc. broadcast receiving technical parameter.
Further, the audio codec can receive analog audio of the 4-channel audio demodulator board and encode the analog audio into an IP format for remote monitoring, the audio codec is connected with the 4G router and used for compression codec transmission of remote network audio and video, and the encoding standard of the audio codec is h.264.
Furthermore, the network module is a single-channel serial server, is connected with the 232 port of the 4-channel audio demodulator board, converts 232 communication into an IP format, communicates with a remote monitoring computer in real time, and is connected with the 4G router through a network cable.
Furthermore, an SIM card is arranged inside the 4G router, and an antenna is connected to the outside of the 4G router, so that a 4G internet access function is realized, and an internet channel for communicating with a remote monitoring computer is established.
Compared with the prior art, the utility model, have following advantage:
1. the set network module is monitored by remote software data acquisition through a network interface, and can remotely monitor the technical parameters of 3 sets of broadcast programs, check the dynamic audio level of the 3 sets of broadcast programs, check the receiving field intensity, the signal to noise ratio and the like of the 3 sets of broadcast programs in real time at a monitoring center.
2. The utility model discloses an equipment is plugged in the power, just can use, simple to operate also is applicable to the field installation, through 4G router and internet transmission, does not receive the monitoring distance to influence.
Drawings
Fig. 1 is an overall system block diagram of the multi-channel fm broadcast monitor of the present invention;
fig. 2 is the utility model relates to a local enlarger of 4 way audio frequency demodulator boards of multichannel FM broadcast monitor.
Detailed Description
Embodiments of the present invention will be described in further detail below with reference to the accompanying drawings.
Example 1
As shown in fig. 1 and 2, a multichannel fm broadcast monitor comprises 4 channels of audio demodulator boards, the upper end of the 4 channels of audio demodulator boards is connected with an audio codec through an audio cable, the lower end of the 4 channels of audio demodulator boards is connected with a network module through 232 wiring, one side of the network module is connected with a 4G router through a network cable, the 4G router is connected with the audio codec through a network cable, and the network module is monitored by remote software acquisition data through a network interface.
One side of 4 way audio demodulator boards is connected with 4 way demodulator antennas, and the lower extreme of 4 way audio demodulator boards is connected with the transformer, and the transformer is connected with switching power supply through the power cord, and switching power supply converts the 220V alternating current into the required direct current of equipment work, provides the required direct current of each module work.
The 4-channel audio demodulator board is externally connected with a 4-channel demodulator antenna and can simultaneously receive 4-channel broadcast signals, an audio codec outputs analog audio for remote monitoring, an MCU master control chip is arranged on the 4-channel audio demodulator board and is C8051F020, the chip is high in operation speed, sufficient in storage capacity and stable in performance, technical parameters such as field intensity and signal to noise ratio of the 4-channel broadcast signals can be collected in real time, the chip is connected with a network module through a 232 interface and is used for remote communication, a main demodulation chip is further arranged on the 4-channel audio demodulator board and is in real-time communication with the MCU master control chip, the main demodulation chip is Si4740C10-GMR, and the main demodulation chip is a vehicle gauge radio receiving chip and is used for receiving the broadcast audio, outputting the analog audio, detecting the field intensity, the signal to noise ratio and other broadcast receiving technical parameters.
The audio codec can receive the analog audio of the 4-channel audio demodulator board and encode the analog audio into an IP format for remote monitoring, the audio codec is connected with the 4G router and is used for compression coding and decoding transmission of remote network audio and video, and the encoding standard of the audio codec is H.264.
The network module is a single-path serial server, is connected with 232 ports of the 4-path audio demodulator board, converts 232 communication into an IP format, communicates with a remote monitoring computer in real time, and is connected with the 4G router through a network cable.
By adopting the technical scheme: the set network module is monitored by remote software data acquisition through a network interface, and can remotely monitor the technical parameters of 3 sets of broadcast programs, check the dynamic audio level of the 3 sets of broadcast programs, check the receiving field intensity, the signal to noise ratio and the like of the 3 sets of broadcast programs in real time at a monitoring center.
Example 2
As shown in fig. 1 and 2, a multichannel fm broadcast monitor comprises 4 channels of audio demodulator boards, the upper end of the 4 channels of audio demodulator boards is connected with an audio codec through an audio cable, the lower end of the 4 channels of audio demodulator boards is connected with a network module through 232 wiring, one side of the network module is connected with a 4G router through a network cable, the 4G router is connected with the audio codec through a network cable, and the network module is monitored by remote software acquisition data through a network interface.
The SIM card is arranged in the 4G router, and the antenna is connected to the outside of the 4G router, so that the 4G internet function is realized, and the 4G router is used for establishing an internet channel for communicating with a remote monitoring computer.
By adopting the technical scheme: the utility model discloses an equipment is plugged in the power, just can use, simple to operate also is applicable to the field installation, through 4G router and internet transmission, does not receive the monitoring distance to influence.
The utility model relates to a multi-channel FM broadcast monitor, which mainly comprises a 4G router, a network module, an audio codec, a 4-channel audio demodulator board, a switch power supply and a transformer, wherein the switch power supply converts 220V alternating current into direct current required by the equipment work, the switch power supply provides the direct current required by the work of each module, and the monitor has the functions of internet access communication, 4G signal antenna access, 4-channel demodulator antenna access and the like, the 4G signal access is realized, the network module is connected with the router through a network, the network module is connected with the 4-channel audio demodulator board through a 232 mode, data is collected by remote software through a network interface for monitoring, the 4-channel audio demodulator board is externally connected with the 4-channel demodulator antenna and can simultaneously receive 4-channel broadcast signals, the audio codec outputs analog audio for remote monitoring, the 4-channel audio demodulator board is provided with a MCU chip, the technical parameters of field intensity, signal to noise ratio and the like of 4 paths of broadcast signals can be collected in real time, meanwhile, the technical parameters are connected with a network module through a 232 interface and are used for remote communication, a main demodulation chip is also arranged on a 4-path audio demodulator board and is communicated with an MCU main control chip in real time, the main demodulation chip is a vehicle radio receiving chip and is used for receiving broadcast audio, outputting analog audio, detecting the technical parameters of broadcast reception such as the field intensity, the signal to noise ratio and the like, an audio codec can receive the analog audio of the 4-path audio demodulator board and is coded into an IP format and is used for remote monitoring, the audio codec is connected with a 4G router and is used for compressing, coding and decoding transmission of remote network audio and video, the coding standard of the audio codec is H.264, the network module is a single-path serial server and is connected with a 232 port of the 4-path audio demodulator board and converts the 232 communication into the IP, with remote monitoring computer real-time communication, through the net twine connection 4G router, the network module of setting is monitored by remote software data acquisition through network interface, can monitor 3 sets of radio programs, look over 3 sets of radio programs's dynamic audio frequency level and look over 3 sets of radio programs's receiving field intensity and technical parameter such as SNR in the long-range real-time monitoring of surveillance center, the utility model discloses an equipment is plugged in the power, just can use, and simple to operate also is applicable to field installation, through 4G router and internet transmission, does not receive monitoring distance to influence, and is comparatively practical.
The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of improvements and decorations can be made without departing from the concept of the present invention, and these improvements and decorations should also be considered as the protection scope of the present invention.
Claims (6)
1. The utility model provides a multichannel FM broadcast monitor, includes 4 way audio demodulator boards, its characterized in that: the upper end of 4 way audio demodulator boards is connected with audio frequency codec through the audio frequency line, the lower extreme of 4 way audio demodulator boards is connected with the network module through 232 wiring, one side of network module is connected with the 4G router through the network line, and the 4G router passes through the network line with audio frequency codec and is connected, the network module is monitored by remote software data acquisition through network interface.
2. A multi-channel fm broadcast monitor as claimed in claim 1, wherein: one side of 4 way audio demodulator boards is connected with 4 way demodulator antennas, the lower extreme of 4 way audio demodulator boards is connected with the transformer, the transformer is connected with switching power supply through the power cord, switching power supply converts the 220V alternating current into the required direct current of equipment work, provides the required direct current of each module work.
3. A multi-channel fm broadcast monitor as claimed in claim 2, wherein: 4 external 4 routes demodulator antennas of audio demodulator board can receive 4 routes broadcast signal simultaneously, audio codec exports analog audio frequency and is used for remote monitoring, be provided with MCU main control chip on the 4 routes audio demodulator board, technical parameter such as field intensity, SNR that can gather 4 routes broadcast signal in real time link to each other with network module through 232 interfaces simultaneously for remote communication, still be provided with main demodulation chip on the 4 routes audio demodulator board, and main demodulation chip and MCU main control chip real-time communication, main demodulation chip is car rule radio receiving chip for broadcast receiving technical parameter such as receiving broadcast audio frequency, output analog audio frequency, detection field intensity, SNR.
4. A multi-channel fm broadcast monitor as claimed in claim 1, wherein: the audio codec can receive analog audio of the 4-channel audio demodulator board and encode the analog audio into an IP format for remote monitoring, the audio codec is connected with the 4G router and used for compression coding and decoding transmission of remote network audio and video, and the encoding standard of the audio codec is H.264.
5. A multi-channel fm broadcast monitor as claimed in claim 1, wherein: the network module is a single-path serial server, is connected with 232 ports of the 4-path audio demodulator board, converts 232 communication into an IP format, communicates with a remote monitoring computer in real time, and is connected with the 4G router through a network cable.
6. A multi-channel fm broadcast monitor as claimed in claim 1, wherein: the 4G router is characterized in that an SIM card is arranged inside the 4G router, and an antenna is connected to the outside of the 4G router, so that a 4G internet function is realized, and an internet channel for communicating with a remote monitoring computer is established.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920776309.8U CN209913829U (en) | 2019-05-27 | 2019-05-27 | Multi-channel frequency modulation broadcast monitor |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920776309.8U CN209913829U (en) | 2019-05-27 | 2019-05-27 | Multi-channel frequency modulation broadcast monitor |
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| CN209913829U true CN209913829U (en) | 2020-01-07 |
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| CN201920776309.8U Expired - Fee Related CN209913829U (en) | 2019-05-27 | 2019-05-27 | Multi-channel frequency modulation broadcast monitor |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110113121A (en) * | 2019-05-27 | 2019-08-09 | 杭州众传数字设备有限公司 | A kind of multichannel frequency modulation broadcasting monitor |
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2019
- 2019-05-27 CN CN201920776309.8U patent/CN209913829U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110113121A (en) * | 2019-05-27 | 2019-08-09 | 杭州众传数字设备有限公司 | A kind of multichannel frequency modulation broadcasting monitor |
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