CN103442323B - The broadcast unit of a kind of tape jam detection and the Public Address system containing this element - Google Patents
The broadcast unit of a kind of tape jam detection and the Public Address system containing this element Download PDFInfo
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- CN103442323B CN103442323B CN201310394105.5A CN201310394105A CN103442323B CN 103442323 B CN103442323 B CN 103442323B CN 201310394105 A CN201310394105 A CN 201310394105A CN 103442323 B CN103442323 B CN 103442323B
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Abstract
The invention discloses the broadcast unit of a kind of tape jam detection and the Public Address system containing this element, belong to public address system field.This system includes Public Address system, management work station and the broadcast unit of a series of tape jam detection；Public Address system includes a series of broadcast subregion, and the output of broadcast subregion is connected with corresponding broadcast unit, is bi-directionally connected between each broadcast unit and management work station；The broadcast unit of tape jam detection includes having concurrently transmission sound and the signal processing module of fault inquiry signal and more than one has the intelligent horn of broadcasting function.Present configuration is simple to operation, for traditional use power amplifier drives the mode that loudspeaker are reconfigured at sound field detection system, greatly reduces system cost, improves sound field monitoring effect；While sending broadcast singal, it is also possible to automatically detect the duty of each loudspeaker of each broadcast subregion；Management work station can detect the loudspeaker broken down in real time, for providing efficient broadcast service to create hardware condition with emergent.
Description
Technical field
The present invention relates to public address system.
Background technology
Public Address system on airport, station, hotel, the public field such as exhibition center all have employing.Original broadcast system does not has sound field detecting devices, needs whether periodic detection loudspeaker break down, maintenance inconvenience, and use cost is high, and particularly at large space, the detection to loudspeaker is the most difficult.The Public Address system improved addition of a set of sound field detection system, it is 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 the fault of loudspeaker in real time, but yet suffer from can only fault point at which loudspeaker, it is impossible to identify the problems such as failure cause.
Summary of the invention
The invention provides the broadcast unit of a kind of tape jam detection, this broadcast unit also has the function of fault detect while playing voice, can detect whether broadcast loudspeaker and broadcast circuit are in malfunction, normal work and the maintenance of follow-up loudspeaker for broadcast system provide reliable reference.
Present invention also offers the Public Address system of a kind of broadcast unit containing tape jam detection, this system composition simple in construction, easily operation, except having the broadcast capability of conventional broadcast system, can also detect the duty of broadcast unit and the particular location of trouble unit simultaneously in real time.
For solving above-mentioned technical problem, the technical solution used in the present invention is: the broadcast unit of a kind of tape jam detection, including having transmission broadcasting sound signal concurrently and the signal processing module of fault inquiry signal and coupled more than one have the intelligent horn of broadcasting function；
Described signal processing module includes mixer, the first signal modulator, the first analyzer, the first demodulator of PM signal PM and the first high pass filter, one of them input of described mixer fetches the broadcast singal from radio unit, mixer another input termination sent by the first analyzer, via the fault inquiry signal after the first signal modulator, the output of mixer connects intelligent horn；From the fault back-signalling of intelligent horn via the first high pass filter and the respective input being followed by the first analyzer of the first demodulator of PM signal PM；
Described intelligent horn includes low pass filter, the second high pass filter, secondary signal manipulator, power amplifier, secondary signal demodulator, the second analyzer, address DIP device, fault detector and conventional horn；The outfan of described signal processing module divides two-way to be connected with low pass filter, the second high pass filter respectively；The outfan of shown low pass filter is connected with conventional horn via after power amplifier；The outfan of described second high pass filter is via the input being followed by the second analyzer of secondary signal demodulator, unidirectional between described second analyzer and address DIP device it is connected, being bi-directionally connected between described second analyzer and fault detector, signal is sent back to signal processing module via after secondary signal manipulator by the outfan of described second analyzer.
It is connected by bus between described signal processing module and intelligent horn.
Present invention also offers a kind of technical scheme:
The Public Address system of a kind of broadcast unit containing tape jam detection, does not comprise broadcast loudspeaker and the Public Address system of power amplifier, management work station and the broadcast unit of a series of tape jam detection including existing；Described Public Address system includes that a series of broadcast subregion, the output of broadcast subregion are connected with the mixer of corresponding broadcast unit, and described each broadcast unit is by being bi-directionally connected between the first analyzer and management work station.
It is connected by LAN between each broadcast unit and management work station.
It is provided with the network switch between each broadcast unit and management work station.
It it is wired connection between described Public Address system and broadcast unit.
The technological progress using technique scheme to obtain is: the broadcast unit of the tape jam detection that the present invention provides and total system, simple in construction, easily operation, for traditional use power amplifier drives the mode that loudspeaker are reconfigured at sound field detection system, it is greatly reduced the cost of system, improves the monitoring effect of sound field；While broadcast system sends broadcast, it is also possible to the automatic each broadcast loudspeaker detecting each broadcast subregion and the duty of circuit and the particular location of fault loudspeaker；Management work station can detect and show the state of the broadcast circuit of each broadcast loudspeaker 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 tape jam of the present invention detection；
Fig. 2 is the structural representation of message processing module in broadcast unit；
Fig. 3 is the structural representation of intelligent horn in broadcast unit；
Fig. 4 is the structural representation of Public Address system of the present invention；
Fig. 5 is signal processing module detailed connection figure in the diagram；
Fig. 6 is intelligent horn detailed connection figure in the diagram.
Detailed description of the invention
Understand as shown in Figure 1, the broadcast unit of tape jam detection, including having transmission sound concurrently and the signal processing module of fault inquiry signal and coupled more than one have the intelligent horn of broadcasting function.
It is connected by bus between signal processing module with intelligent horn.Described signal processing module is also sending malfunction detection signal while intelligent horn transmission conventional broadcast signal, intelligent horn monitors the malfunction detection signal from signal processing module while conventional broadcast signal playing, and the analysis result of detection of self is sent to signal processing module is analyzed.
Fig. 2 show the structural representation of signal processing module, described signal processing module includes mixer, the first signal modulator, the first analyzer, the first demodulator of PM signal PM and the first high pass filter, one of them input of described mixer fetches the broadcast singal from radio unit, mixer another input termination sent by the first analyzer, via the accident analysis signal after the first signal modulator, the output of mixer connects intelligent horn；From the fault back-signalling of intelligent horn via the first high pass filter and the respective input being followed by the first analyzer of the first demodulator of PM signal PM.
The operation principle of this signal processing module and process be: the first analyzer is the core work parts of this module, and it is responsible for sending malfunction detection signal, intercepts the fault back-signalling of intelligent horn.
Before sending fault detection signal, first by the first parser generation detection instruction, being then sent to the first signal modulator, detection instruction mainly includes address and the detection content of intelligent horn；Detection vector modulation is become fault detection signal to be sent to mixer by the first signal modulator again；The normal broadcast signal that this fault detection signal is sent by mixer with broadcast system is sent to intelligent horn after mixing.
Signal on first high pass filter foldback circuit, filters out the broadcast singal of low frequency, and pickup intelligent horn sends the high frequency fault back-signalling of returning, and gives the first demodulator of PM signal PM by this signal；First demodulator of PM signal PM sends the first analyzer to after high frequency analog signals is demodulated into digital signal；First analyzer sends, by analyzing the first demodulator of PM signal PM, the digital signal of coming, and learns which intelligent horn breaks down.
Fig. 3 show the structural representation of intelligent horn, and described intelligent horn includes low pass filter, the second high pass filter, secondary signal manipulator, power amplifier, secondary signal demodulator, the second analyzer, address DIP device, fault detector and conventional horn；The outfan of described signal processing module divides two-way to be connected with low pass filter, the second high pass filter respectively；The outfan of shown low pass filter is connected with conventional horn via after power amplifier；The outfan of described second high pass filter is via the input being followed by the second analyzer of secondary signal demodulator, unidirectional between described second analyzer and address DIP device it is connected, being bi-directionally connected between described second analyzer and fault detector, signal is sent back to signal processing module via after secondary signal manipulator by the outfan of described second analyzer.
The operation principle of this intelligent horn and process be: from the audio broadcast signal of signal processing module on low pass filter detection circuit, sends conventional horn to by power amplifier and plays out；Second high pass filter detection, from the high frequency fault detectable signal of signal processing module, sends it to secondary signal demodulator；The second analyzer given by secondary signal demodulator after this analogue signal is converted into digital signal, second analyzer detects unique address code of the mark loudspeaker in malfunction detection signal from digital signal, by this address code compared with the address code giving this intelligent horn in local address DIP device, if different from the address code of this intelligent horn, then ignore this signal；If identical with the address code of this intelligent horn, then extract the probe instructions in malfunction detection signal；If this probe instructions is invalid, then ignore this signal；Otherwise the second analyzer sends signal enabling fault detector to fault detector；Whether fault detector detection power amplifier is transferred to the duty of conventional horn and conventional horn the most normally by broadcast singal, and give the second analyzer by test results report；Second analyzer generates response code according to the testing result of fault detector, after forming back-signalling with local intelligent horn address code combination, is sent to secondary signal manipulator；Secondary signal manipulator is sent on circuit after this back-signalling is modulated into analogue signal, send back to signal processing module, completes epicycle detection work.
Above-mentioned for the operation principle of broadcast unit in the present invention and work process.From the above, signal processing module the most only inquires about the duty of an intelligent horn, therefore, in order to ensure the duty of each intelligent horn connected, signal processing module actually ceaselessly, circulating transmission malfunction detection signal, in the signal the most every time sent, the address code of intelligent horn is different.
Fig. 4 show the Public Address system of broadcast unit containing tape jam detection, and this system includes existing not comprising broadcast loudspeaker and the Public Address system of power amplifier, management work station and the broadcast unit of a series of tape jam detection；Described Public Address system includes that a series of broadcast subregion, the output of broadcast subregion are connected with the mixer of corresponding broadcast unit, and described each broadcast unit is by being bi-directionally connected between the first analyzer and management work station, as shown in Figure 5.Fig. 6 show the concrete connection diagram of signal processing module and intelligent horn.
In the present invention, Public Address system does not comprise broadcast loudspeaker and power amplifier part, because broadcast unit below just has this function.Public Address system the most all comprises a series of broadcast subregion, and these broadcast subregions, primarily to ensure that broadcast singal can cover extensively, are arranged at certain area.Such as one broadcast subregion is set at waiting room, a broadcast subregion is set at exit.The broadcast unit that the broadcast singal of each broadcast subregion out the most just detects with the tape jam arranged at this subregion is connected.Mixer in the signal processing module of what conventional broadcast signal initially entered is broadcast unit, then according to the operation principle of signal processing module is processed in broadcast unit.
Also including a management work station in native system, the fault back-signalling analyzed is sent to management work station by each broadcast unit.These information are collected by management work station, and staff can arrange maintainer to keep in repair fault loudspeaker according to these information in time, to ensure the normal work of broadcast system.Management work station can also send ad hoc inquiry signal to a certain broadcast unit, inquires about the duty of specific a certain intelligent horn.
By LAN two-way communication between management work station and broadcast unit, it is provided with the equipment such as the network switch between as intermediate transit structure.Wired connection between each broadcast subregion and broadcast unit in Public Address system, it is possible to use existing broadcast subregion and the connecting line of teller machines, it is not necessary to connect up the most separately, saved the cost of system.
The overall routing of this broadcast system uses three-wire system, is holding wire, positive source, power ground respectively.Positive source and power ground provide working power to intelligent horn.Holding wire is with fieldbus form transmission fault detectable signal and fault back-signalling.
In the present invention, the quantity of the intelligent horn that broadcast unit contains is not fixing, each broadcast subregion is commonly coupled with a broadcast unit, and the quantity broadcasting subregion in whole system is not changeless, these relate to the ingredient of quantity, and those skilled in the art select quantity to arrange the most voluntarily.The connected mode of equipment room is not changeless, can the most rationally select.
Claims (6)
1. the broadcast unit of tape jam detection, it is characterised in that include having concurrently transmission broadcasting sound signal and the signal processing module of fault inquiry signal and coupled more than one has the intelligent horn of broadcasting function；
Described signal processing module includes mixer, the first signal modulator, the first analyzer, the first demodulator of PM signal PM and the first high pass filter, one of them input of described mixer fetches the broadcast singal from radio unit, mixer another input termination sent by the first analyzer, via the fault inquiry signal after the first signal modulator, the output of mixer connects intelligent horn；From the fault back-signalling of intelligent horn via the first high pass filter and the respective input being followed by the first analyzer of the first demodulator of PM signal PM；
Described intelligent horn includes low pass filter, the second high pass filter, secondary signal manipulator, power amplifier, secondary signal demodulator, the second analyzer, address DIP device, fault detector and conventional horn；The outfan of described signal processing module divides two-way to be connected with low pass filter, the second high pass filter respectively；The outfan of described low pass filter is connected with conventional horn via after power amplifier；The outfan of described second high pass filter is via the input being followed by the second analyzer of secondary signal demodulator, unidirectional between described second analyzer and address DIP device it is connected, being bi-directionally connected between described second analyzer and fault detector, signal is sent back to signal processing module via after secondary signal manipulator by the outfan of described second analyzer.
The broadcast unit of tape jam the most according to claim 1 detection, it is characterised in that be connected by bus between described signal processing module and intelligent horn.
3. the Public Address system of the broadcast unit containing the tape jam detection described in claim 1, it is characterised in that include not comprising broadcast loudspeaker and the Public Address system of power amplifier, management work station and the broadcast unit of a series of tape jam detection；Described Public Address system includes that a series of broadcast subregion, the output of broadcast subregion are connected with the mixer of corresponding broadcast unit, and described each broadcast unit is by being bi-directionally connected between the first analyzer and management work station.
The Public Address system of a kind of broadcast unit containing tape jam detection the most according to claim 3, it is characterised in that be connected by LAN between each broadcast unit and management work station.
The Public Address system of a kind of broadcast unit containing tape jam detection the most according to claim 4, it is characterised in that be provided with the network switch between each broadcast unit and management work station.
The Public Address system of a kind of broadcast unit containing tape jam detection the most according to claim 3, it is characterised in that be wired connection between described Public Address system and broadcast unit.
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| CN201310394105.5A CN103442323B (en) | 2013-09-03 | 2013-09-03 | The broadcast unit of a kind of tape jam detection and the Public Address system containing this element |
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| CN201310394105.5A CN103442323B (en) | 2013-09-03 | 2013-09-03 | The broadcast unit of a kind of tape jam detection and the Public Address system containing this element |
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| CN103442323B true CN103442323B (en) | 2016-08-24 |
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| CN103905952A (en) * | 2014-04-03 | 2014-07-02 | 宝鸡市凌云机电设备制造有限公司 | High-power matrix loudspeaker |
| 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 |
| CN105991335A (en) * | 2015-02-25 | 2016-10-05 | 邵未 | Addressable fault isolation system |
| DE102016225365A1 (en) | 2016-12-19 | 2018-06-21 | Robert Bosch Gmbh | Method and device for monitoring at least one loudspeaker line |
| CN112822624A (en) * | 2021-01-14 | 2021-05-18 | 四川湖山电器股份有限公司 | Linear array loudspeaker detection method and system based on FFT |
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Effective date of registration: 20161026 Address after: 100036 Beijing City, Haidian District Wanshou Road railway building, No. 2 Patentee after: The Sixth Engineering Bureau Group Co., Ltd., China Railway Patentee after: China Raliway Sixth Group Electric Co., Ltd. Address before: 100036 Beijing City, Haidian District Wanshou Road railway building, No. 2 Patentee before: The Sixth Engineering Bureau Group Co., Ltd., China Railway Patentee before: Beijing Zhongtie Tianyi Technology Development Co., Ltd. |