CN203504755U - Broadcast units having fault detection functions and public broadcast system having same - Google Patents
Broadcast units having fault detection functions and public broadcast system having same Download PDFInfo
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- CN203504755U CN203504755U CN201320543716.7U CN201320543716U CN203504755U CN 203504755 U CN203504755 U CN 203504755U CN 201320543716 U CN201320543716 U CN 201320543716U CN 203504755 U CN203504755 U CN 203504755U
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Abstract
The utility model discloses broadcast units having fault detection functions and a public broadcast system having the same, and belongs to the field of public address systems. The public broadcast system having the broadcast units comprises a conventional public broadcast system, a management work station and a series of the broadcast units having the fault detection functions. The public broadcast system comprises a series of broadcast zones, the output of the broadcast zones are connected with corresponding broadcast units, and the broadcast units are in bidirectional connection with the management work station. Each broadcast unit having the fault detection function comprises a signal processing module and at least one intelligent horn having a broadcasting function, wherein the signal processing module can transmit voice and fault inquiring signals. The broadcast units having the fault detection functions and the public broadcast system having the broadcast units are simple in structure and are easy to operate. According to the utility model, compared with a conventional manner that the horn is driven by a power amplifier and a sound field detection system is equipped for fault detection, the system cost is greatly reduced, and sound field monitoring effects are improved; when the broadcast signals are sent, working states of the horns in the broadcast zones can be automatically detected; and the malfunctioning horns can be detected in real time by the management work station, and hardware conditions are provided for high efficiency broadcast service and emergency.
Description
Technical field
The utility model relates to public address system.
Background technology
Public Address system on airport, all there is employing the public field such as station, hotel, exhibition center.Original broadcast system does not have sound field detecting devices, and need to regularly detect loudspeaker and whether break down, maintenance inconvenience, use cost is high, particularly at large space, difficult especially to the detection of loudspeaker.Improved Public Address system has added a set of sound field detection system, on the basis of existing broadcast system, set up a set of sound field detection system, this system needs independent wiring, with broadcast system concurrent working, can detect in real time the fault of loudspeaker, but still exist and can only locate fault point at which loudspeaker, can not identify the problems such as failure cause.
Utility model content
The broadcast unit that the utility model provides a kind of tape jam to detect, this broadcast unit also has the function of fault detect when playing voice, can detect broadcast with loudspeaker and broadcast circuit whether in malfunction, for the normal work of broadcast system and follow-up loudspeaker maintenance provide reliable reference.
The utility model also provides a kind of Public Address system of the broadcast unit that contains tape jam detection, this system forms simple in structure, easy to operate, except thering is the broadcast capability of conventional broadcast system, can also detect in real time the operating state of broadcast unit and the particular location of trouble unit simultaneously.
For solving the problems of the technologies described above, the technical solution adopted in the utility model is: the broadcast unit that a kind of tape jam detects, comprises and have transmission broadcasting sound signal and the signal processing module of fault inquiry signal and coupled intelligent loudspeaker above with broadcasting function concurrently;
Described signal processing module comprises mixer, first signal modulator, the first analyzer, first signal demodulator and the first high pass filter, one of them input of described mixer fetches the broadcast singal from radio unit, that another input termination of mixer is sent by the first analyzer, via the fault inquiry signal after first signal modulator, the output of mixer connects intelligent loudspeaker; Fault back-signalling from intelligent loudspeaker connects the respective input of the first analyzer afterwards via the first high pass filter and first signal demodulator;
Described intelligent loudspeaker comprise low pass filter, the second high pass filter, secondary signal modulator, power amplifier, secondary signal demodulator, the second analyzer, address DIP device, fault detector and common loudspeaker; The output of described signal processing module divides two-way to be connected with low pass filter, the second high pass filter respectively; Shown in the output of low pass filter via being connected with common loudspeaker after power amplifier; The output of described the second high pass filter is via an input that connects the second analyzer after secondary signal demodulator, unidirectional connection between described the second analyzer and address DIP device, two-way connection between described the second analyzer and fault detector, the output of described the second analyzer send back to signal processing module via after secondary signal modulator by signal.
Between described signal processing module and intelligent loudspeaker, by bus, be connected.
The utility model also provides a kind of technical scheme:
A Public Address system for the broadcast unit that contains tape jam detection, comprises the broadcast unit that existing Public Address system, management work station and a series of tape jam that does not comprise broadcast loudspeaker and power amplifier detects; Described Public Address system comprises a series of broadcast subregion, and the output of broadcast subregion is connected with the mixer of corresponding broadcast unit, and described each broadcast unit passes through two-way connection between the first analyzer and management work station.
Between each broadcast unit and management work station, by local area network (LAN), be connected.
Between each broadcast unit and management work station, be provided with the network switch.
It between described Public Address system and broadcast unit, is wired connection.
The technological progress that adopts technique scheme to obtain is: broadcast unit and total system that the tape jam that the utility model provides detects, simple in structure, easy to operate, with respect to traditional use power amplifier, drive loudspeaker to configure again the mode of sound field detection system, also greatly reduce the cost of system, improved the monitoring effect of sound field; When broadcast system sends broadcast, can also automatically detect the operating state of respectively broadcast loudspeaker and circuit and the particular location of fault loudspeaker of respectively broadcasting subregion; Management work station can detect and show the state of the broadcast circuit of the loudspeaker that respectively broadcast in real time, for providing efficient broadcast service and emergency processing to create hardware condition.
Accompanying drawing explanation
Fig. 1 is the structural representation of the broadcast unit of the utility model tape jam detection;
Fig. 2 is the structural representation of message processing module in broadcast unit;
Fig. 3 is the structural representation of intelligent loudspeaker in broadcast unit;
Fig. 4 is the structural representation of the utility model Public Address system;
Fig. 5 is the detailed connection layout of signal processing module in Fig. 4;
Fig. 6 is the detailed connection layouts of intelligent loudspeaker in Fig. 4.
Embodiment
The broadcast unit known as shown in Figure 1, tape jam detects, comprises and has transmission sound and the signal processing module of fault inquiry signal and coupled intelligent loudspeaker above with broadcasting function concurrently.
Between signal processing module and intelligent loudspeaker, by bus, be connected.Described signal processing module also sends malfunction detection signal when transmitting conventional broadcast singal to intelligent loudspeaker, intelligence loudspeaker are monitored the malfunction detection signal from signal processing module when playing conventional broadcast singal, and the analysis result of detection of self is sent to signal processing module analysis.
Figure 2 shows that the structural representation of signal processing module, described signal processing module comprises mixer, first signal modulator, the first analyzer, first signal demodulator and the first high pass filter, one of them input of described mixer fetches the broadcast singal from radio unit, that another input termination of mixer is sent by the first analyzer, via the accident analysis signal after first signal modulator, the output of mixer connects intelligent loudspeaker; Fault back-signalling from intelligent loudspeaker connects the respective input of the first analyzer afterwards via the first high pass filter and first signal demodulator.
The operation principle of this signal processing module and process are: the first analyzer is the core work parts of this module, and it is responsible for the fault back-signalling that sends malfunction detection signal, intercepts intelligent loudspeaker.
Before sending fault detection signal, first by the first parser generation, detect instruction, then send to first signal modulator, detect address and Detection of content that instruction mainly comprises intelligent loudspeaker; First signal modulator is modulated into fault detection signal by detection instruction again and sends to mixer; After mixing, mixer is sent this fault detection signal normal broadcast signal with broadcast system sends to intelligent loudspeaker.
Signal on the first high pass filter foldback circuit, filters out the broadcast singal of low frequency, picks up intelligent loudspeaker and sends the high frequency fault back-signalling of returning, and by this signal, gives first signal demodulator; First signal demodulator sends the first analyzer to after high frequency analog signals is demodulated into digital signal; The digital signal that the first analyzer sends by analyzing first signal demodulator, learns which intelligent loudspeaker breaks down.
Figure 3 shows that the structural representation of intelligent loudspeaker, described intelligent loudspeaker comprise low pass filter, the second high pass filter, secondary signal modulator, power amplifier, secondary signal demodulator, the second analyzer, address DIP device, fault detector and common loudspeaker; The output of described signal processing module divides two-way to be connected with low pass filter, the second high pass filter respectively; Shown in the output of low pass filter via being connected with common loudspeaker after power amplifier; The output of described the second high pass filter is via an input that connects the second analyzer after secondary signal demodulator, unidirectional connection between described the second analyzer and address DIP device, two-way connection between described the second analyzer and fault detector, the output of described the second analyzer send back to signal processing module via after secondary signal modulator by signal.
The operation principle of these intelligence loudspeaker and process are: low pass filter detects on circuit from the audio broadcast signal of signal processing module, sends common loudspeaker to play by power amplifier; The second high pass filter detects the high frequency malfunction detection signal from signal processing module, sends it to secondary signal demodulator; Secondary signal demodulator is given the second analyzer after converting this analog signal to digital signal, the second analyzer detects unique address code of the sign loudspeaker in malfunction detection signal from digital signal, this address code is compared with the address code of giving these intelligent loudspeaker in local address DIP device, if different from the address code of these intelligent loudspeaker, ignore this signal; If identical with the address code of these intelligent loudspeaker, extract the probe instructions in malfunction detection signal; If this probe instructions is invalid, ignore this signal; Otherwise the second analyzer starts fault detector to fault detector transmitted signal; Whether the operating state whether fault detector detection power amplifier is transferred to broadcast singal common loudspeaker and common loudspeaker is normal, and gives the second analyzer by test results report; The second analyzer generates response code according to the testing result of fault detector, is combined to form after back-signalling with local intelligent loudspeaker address code, sends to secondary signal modulator; Secondary signal modulator sends on circuit after this back-signalling is modulated into analog signal, send back to signal processing module, completes epicycle testing.
Above-mentioned is operation principle and the course of work of broadcast unit in the utility model.From the above, signal processing module is only inquired about the operating state of intelligent loudspeaker at every turn, therefore, in order to guarantee the operating state of connected each intelligent loudspeaker, signal processing module be actually ceaselessly, circulating transmission malfunction detection signal, just in each signal sending, the address code of intelligent loudspeaker is different.
Figure 4 shows that the Public Address system of the broadcast unit that contains tape jam detection, this system comprises the broadcast unit that existing Public Address system, management work station and a series of tape jam that does not comprise broadcast loudspeaker and power amplifier detects; Described Public Address system comprises a series of broadcast subregion, and the output of broadcast subregion is connected with the mixer of corresponding broadcast unit, and described each broadcast unit passes through two-way connection between the first analyzer and management work station, as shown in Figure 5.Figure 6 shows that the concrete connection diagram of signal processing module and intelligent loudspeaker.
In the utility model, Public Address system does not comprise broadcast loudspeaker and power amplifier part, because broadcast unit below just has this function.Public Address system all comprises a series of broadcast subregion conventionally, and these broadcast subregions are mainly in order to guarantee that broadcast singal can cover extensively, at certain area, arrange.Such as a broadcast subregion is set at waiting room, a broadcast subregion is set at place, exit.The broadcast singal of each broadcast subregion is just connected with the broadcast unit of tape jam detection in this subregion setting after out.First conventional broadcast singal enters is the mixer in the signal processing module of broadcast unit, then processed according to the operation principle of signal processing module in broadcast unit.
In native system, also comprise Yi Ge management work station, each broadcast unit sends to management work station by the fault back-signalling of having analyzed.Management work station gathers these information, and staff can arrange maintenance personal to keep in repair fault loudspeaker according to these information in time, to guarantee the normal work of broadcast system.Management work station can also send ad hoc inquiry signal, the operating state of inquiring about specific a certain intelligent loudspeaker to a certain broadcast unit.
Between management work station and broadcast unit, by local area network (LAN) two-way communication, between is provided with the equipment such as the network switch as intermediate transit structure.In Public Address system, respectively broadcast wired connection between subregion and broadcast unit, can utilize the connecting line of existing broadcast subregion and broadcast equipment, without wiring separately again, saved the cost of system.
The overall routing of this broadcast system adopts three-wire system, is respectively holding wire, positive source, power ground.Positive source and power ground provide working power to intelligent loudspeaker.Holding wire is with fieldbus form transmission fault detectable signal and fault back-signalling.
The quantity of the intelligent loudspeaker that in the utility model, broadcast unit contains is not fixed, each broadcast subregion is connected with a broadcast unit conventionally, and the quantity of broadcasting subregion in whole system neither be changeless, these relate to the part of quantity, and those skilled in the art select quantity setting according to actual needs voluntarily.The connected mode of equipment room neither be changeless, can carry out according to actual needs choose reasonable.
Claims (6)
1. the broadcast unit that tape jam detects, is characterized in that comprising having concurrently and transmits broadcasting sound signal and the signal processing module of fault inquiry signal and coupled intelligent loudspeaker above with broadcasting function;
Described signal processing module comprises mixer, first signal modulator, the first analyzer, first signal demodulator and the first high pass filter, one of them input of described mixer fetches the broadcast singal from radio unit, that another input termination of mixer is sent by the first analyzer, via the fault inquiry signal after first signal modulator, the output of mixer connects intelligent loudspeaker; Fault back-signalling from intelligent loudspeaker connects the respective input of the first analyzer afterwards via the first high pass filter and first signal demodulator;
Described intelligent loudspeaker comprise low pass filter, the second high pass filter, secondary signal modulator, power amplifier, secondary signal demodulator, the second analyzer, address DIP device, fault detector and common loudspeaker; The output of described signal processing module divides two-way to be connected with low pass filter, the second high pass filter respectively; Shown in the output of low pass filter via being connected with common loudspeaker after power amplifier; The output of described the second high pass filter is via an input that connects the second analyzer after secondary signal demodulator, unidirectional connection between described the second analyzer and address DIP device, two-way connection between described the second analyzer and fault detector, the output of described the second analyzer send back to signal processing module via after secondary signal modulator by signal.
2. the broadcast unit that tape jam according to claim 1 detects, is characterized in that by bus, being connected between described signal processing module and intelligent loudspeaker.
3. a Public Address system that contains the broadcast unit of tape jam detection claimed in claim 1, is characterized in that the broadcast unit that comprises that existing Public Address system, management work station and a series of tape jam that does not comprise broadcast loudspeaker and power amplifier detects; Described Public Address system comprises a series of broadcast subregion, and the output of broadcast subregion is connected with the mixer of corresponding broadcast unit, and described each broadcast unit passes through two-way connection between the first analyzer and management work station.
4. a kind of Public Address system that contains the broadcast unit that tape jam detects according to claim 3, is characterized in that by local area network (LAN), being connected between each broadcast unit and management work station.
5. the Public Address system of a kind of broadcast unit that contains tape jam detection according to claim 4, is characterized in that being provided with the network switch between each broadcast unit and management work station.
6. the Public Address system of a kind of broadcast unit that contains tape jam detection according to claim 3, is characterized in that between described Public Address system and broadcast unit being wired connection.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320543716.7U CN203504755U (en) | 2013-09-03 | 2013-09-03 | Broadcast units having fault detection functions and public broadcast system having same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201320543716.7U CN203504755U (en) | 2013-09-03 | 2013-09-03 | Broadcast units having fault detection functions and public broadcast system having same |
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| CN203504755U true CN203504755U (en) | 2014-03-26 |
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| CN201320543716.7U Withdrawn - After Issue CN203504755U (en) | 2013-09-03 | 2013-09-03 | Broadcast units having fault detection functions and public broadcast system having same |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103442323A (en) * | 2013-09-03 | 2013-12-11 | 中铁六局集团有限公司 | Playing unit with fault detection function and public broadcast system with same |
| CN104410376A (en) * | 2014-11-25 | 2015-03-11 | 天津市黎明时代轨道交通技术有限公司 | Power amplifier system capable of monitoring fault |
| CN105592396A (en) * | 2015-12-23 | 2016-05-18 | 上海力申科学仪器有限公司 | Medical instrument loudspeaker abnormity on-line real-time alarm device |
-
2013
- 2013-09-03 CN CN201320543716.7U patent/CN203504755U/en not_active Withdrawn - After Issue
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103442323A (en) * | 2013-09-03 | 2013-12-11 | 中铁六局集团有限公司 | Playing unit with fault detection function and public broadcast system with same |
| CN103442323B (en) * | 2013-09-03 | 2016-08-24 | 中铁六局集团有限公司 | The broadcast unit of a kind of tape jam detection and the Public Address system containing this element |
| CN104410376A (en) * | 2014-11-25 | 2015-03-11 | 天津市黎明时代轨道交通技术有限公司 | Power amplifier system capable of monitoring fault |
| CN105592396A (en) * | 2015-12-23 | 2016-05-18 | 上海力申科学仪器有限公司 | Medical instrument loudspeaker abnormity on-line real-time alarm device |
| CN105592396B (en) * | 2015-12-23 | 2019-11-19 | 上海力申科学仪器有限公司 | The extremely online real time warning device of the loudspeaker of medical instruments and equipment |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20140326 Effective date of abandoning: 20160824 |
|
| AV01 | Patent right actively abandoned |
Granted publication date: 20140326 Effective date of abandoning: 20160824 |
|
| C25 | Abandonment of patent right or utility model to avoid double patenting |