CN104569153A - Ship pool experiment system based on PCCP failure early-warning and monitoring signals - Google Patents

Ship pool experiment system based on PCCP failure early-warning and monitoring signals Download PDF

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CN104569153A
CN104569153A CN 201410847804 CN201410847804A CN104569153A CN 104569153 A CN104569153 A CN 104569153A CN 201410847804 CN201410847804 CN 201410847804 CN 201410847804 A CN201410847804 A CN 201410847804A CN 104569153 A CN104569153 A CN 104569153A
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power
underwater
acquisition
audio
ship
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CN 201410847804
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李一博
曾周末
封皓
张园
张玉祥
刘圆圆
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天津大学
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Abstract

A ship pool experiment system based on PCCP failure early-warning and monitoring signals comprises an underwater loudspeaker, a power amplifier, a sound source player, a hydrophone, an audio acquisition card, an acquisition computer and a power supply, wherein the underwater loudspeaker is an audio player mounted underwater in a ship pool, and is connected with the sound source player through the power amplifier; the sound source player is an audio signal player; the power amplifier is an audio amplifier and is used for providing sufficient power for the underwater loudspeaker; the hydrophone is an underwater-signal acquisition device mounted underwater in the ship pool and is connected with the acquisition computer through the audio acquisition card; the power supply is a power supply of the hydrophone and is connected with the hydrophone. The ship pool experiment system based on PCCP failure early-warning and monitoring signals has the advantages of reasonable structural design, convenience in use, high applicability and the like, and can provide an experiment support for later long-distance propagation of broken wires signals in a PCCP.

Description

-种基于PCCP爆管预譬监测信号的船池实验系统 - kind of analogy based PCCP pipe explosion pre-monitoring signals boat basin testing system

技术领域 FIELD

[0001] 本发明属于PCCP道预警监测技术领域,特别是设及一种基于PCCP爆管预警监测信号的船池实验系统。 [0001] The present invention belongs to the technical field PCCP channel alarm monitoring, and in particular is provided based on experimental pool PCCP vessel monitoring system squib warning signal.

背景技术 Background technique

[0002] 预应力钢筒混凝±管即PCCP的生产和使用有很长的历史。 [0002] Coagulation ± prestressed steel cylinder pipe PCCP i.e., the production and use has a long history. 最早设计并制造预应力钢筒混凝±管的是法国邦纳管道公司。 Design and manufacture of prestressed first cylindrical tube French coagulation ± Bonner pipeline company. 到了20世纪40年代,欧美国家也开始纷纷开发和制造预应力钢筒混凝±管。 To the 1940s, European and American countries have begun the development and manufacture of prestressed steel cylinder tube ± coagulation. 美国作为世界上最大的预应力钢筒混凝±管生产和使用国家,到今已经使用的预应力钢筒混凝±管管道的长度长达28000KM,其中最大的预应力钢筒混凝±管道直径达7. 6米。 United States as the largest ± coagulation prestressed steel cylinder pipe production and use of national, longitudinal prestressed steel cylinder pipe conduit ± coagulation have been used up to now 28000KM, wherein the prestressing steel cylinder maximum ± coagulation pipe diameter of 7.6 m.

[0003] 传统的预应力钢筒混凝±管防护的主要方法是人工检查,如听声法和人眼观察法。 [0003] The main conventional methods prestressed cylindrical protective tube is ± coagulation manual inspection, such as listening to the sound of the human eye and the observation method. 预应力钢筒混凝±管故障检测的还有远场祸流/变压器禪合(RFEC/TC),基于水听器的声学检测和声光纤检测(AFO)等方法。 Prestressed steel cylinder failure detection as well as the coagulation tube ± disaster far field flow / co-Zen transformer (RFEC / TC), an optical fiber acoustic detector detects the acoustic hydrophone (the AFO) method based on the like. RFEC/TC法需要在检测前排空管道内的水,因此会消耗大量的人力和物力。 RFEC / TC method requires the detection of water in the front air duct, and therefore consumes a lot of manpower and material resources. 此外,RFEC/TC法是一种离线检验方法,效率较低。 Further, RFEC / TC offline test method is a method less efficient. 声光纤检测法是一种高准确度的实时检测方法,但是该方法成本高,且于在役的预应力钢筒混凝±管道很难再安装声光纤,只能应用于新建的管道。 Acoustic optical detection method for real-time detection of high accuracy, but the methods are costly, and to a prestressed tubular conduit in service ± coagulation difficult to install acoustic fiber, can be applied to the new pipe. 由于水听器对检测声信号灵敏度高,而且只需要在管道内每隔一定距离布设一个水听器即可,所W基于水听器的检测方法不仅检测精度高而且安装方便。 Since the hydrophone acoustic signal detection sensitivity is high, but only a certain distance laid to every hydrophone within the conduit, a method detecting hydrophone based on only the detection accuracy and ease of installation are high W. 该方法相对其他几种检测方法有明显的优势,在预应力钢筒混凝±管道破损检测方面有很广泛的应用前景。 This method is relatively several other detection methods are obvious advantages, have a very broad application prospects in terms of coagulation ± prestressed pipe breakage detector tube.

发明内容 SUMMARY

[0004] 为了解决上述问题,本发明的目的在于提供一种基于PCCP爆管预警监测信号的船池实验系统。 [0004] In order to solve the above problems, an object of the present invention is to provide a vessel based on experimental pool monitoring system squib warning signal PCCP.

[0005] 为了达到上述目的,本发明提供的基于PCCP爆管预警监测信号的船池实验系统包括;水下扬声器、功率放大器、声源播放器、水听器、音频采集卡、采集计算机和电源;其中;水下扬声器为安装在船池中水面之下的音频播放装置,其通过功率放大器与声源播放器相连接;声源播放器为音频信号播放装置,用于生成实验所需要的声信号;功率放大器为音频放大器,用于为水下扬声器提供足够的功率;水听器为安装在船池中水面之下的水下声信号的采集装置,其通过音频采集卡与采集计算机相连接,电源为水听器的电源,其与水听器相连接。 [0005] To achieve the above object, the present invention provides experimental pool PCCP Ship squib warning system based on the monitoring signal comprises; underwater speaker, amplifier, a sound source player, a hydrophone, an audio capture card, and power acquisition computer ; wherein; underwater speaker audio playback device is mounted below the water surface of the tank vessel, which is connected through a power amplifier and a sound source player; a sound source player, an audio signal playback means for generating acoustic experiments required signal; a power amplifier for the audio amplifier, for providing sufficient power for underwater speaker; hydrophone underwater acoustic signal acquisition device is mounted below the water surface of the tank vessel, which is connected via an audio capture card and acquisition computer , hydrophones power supply, which is connected to hydrophone.

[0006] 所述的水下扬声器选用浙江金华天阳电子有限公司生产的JX00A型水下扬声器, 该扬声器由两个直径*高87mm的圆柱组成,重量为1. 6千克,声源数3个,声源方向数为2 个。 [0006] Selection of the underwater speaker Zhejiang Huatian Yang Electronics Co. underwater JX00A of a speaker by the two cylinders 87mm diameter * height composition, weight of 1.6 kg, the number of sound source 3 number, the sound source direction is two.

[0007] 所述的声源播放器采用一台具有声卡的计算机。 The [0007] sound source player uses a computer with a sound card.

[000引所述的音频采集卡为USB音频采集卡,其通过USB接口与采集计算机相连接。 [000 lead the audio capture card USB audio capture card, which is connected via USB to the acquisition computer.

[0009] 本发明提供的基于PCCP爆管预警监测信号的船池实验系统采用结构设计合理、 使用方便、适用性强等优点,能够为后期断丝声信号在PCCP内长距离传播提供实验支持。 [0009] The present invention provides a warning based on the monitor signal PCCP squib boat basin testing system using reasonable structure, easy applicability, etc., to provide experimental support for the later broken wire acoustic signals travel long distances in the PCCP.

附图说明 BRIEF DESCRIPTION

[0010] 图1为本发明提供的基于PCCP爆管预警监测信号的船池实验系统的结构示意图。 [0010] Fig 1 a schematic structural diagram based on the experimental system PCCP Ship pool squib monitoring warning signal provided by the present invention.

[0011] 图2为原始断丝声信号波形及滤波之后的断丝波形。 [0011] FIG 2 is a broken Sibo original shape after the broken wire acoustic signal waveform and filter.

[0012] 图3为断丝声信号传播衰减曲线图。 [0012] FIG. 3 is a broken wire acoustic signal propagation attenuation curve.

具体实施方式 detailed description

[0013] 下面结合附图和具体实施例对本发明提供的基于PCCP爆管预警监测信号的船池实验系统进行详细说明。 Drawings and specific embodiments of the present invention provides experimental pool PCCP ship warning system monitoring signal squib described in detail based on the [0013] following binding.

[0014] 针对已有技术的情况,本发明人在对PCCP作了大量的前期研究后,提出了基于水听器的PCCP断丝检测系统,其原理是对PCCP道的声信号实时在线检测,识别其中的断丝信号,利用断丝信号实现PCCP道爆管的预警;要监视和识别断丝信号,就必须首先掌握在PCCP道中声信号的传播特点和规律,船池的环境虽然与实际的PCCP道环境有所不同,但是船池也有一定的代表性,在船池实验中,主要针对W下两个方案,第一,测量模拟的断丝声信号在船池中的衰减曲线;第二,测量模拟的单频声信号在船池中的传播衰减曲线。 [0014] for the case of the prior art, the present invention in a large number of previous studies made on the PCCP, proposed PCCP broken wire detection system based on hydrophones, the principle is real-time online detection of acoustic signals PCCP Road, which identified broken wire signal using the broken wire signal is achieved warning PCCP channel squib; to monitor and identification signal from broken wires, must first grasp the propagation characteristics and laws PCCP channel acoustic signals, the ship pool environment, although the actual PCCP channel environment is different, but there is a certain ship pool representative experiment ship pool, W mainly for the two programs, a first measurement of the analog acoustic signal attenuation broken wire ship pool curve; second single-frequency acoustic signal measured in the propagation attenuation curve simulated vessel pool.

[001引如图1所示,本发明提供的基于PCCP爆管预警监测信号的船池实验系统包括冰下扬声器1、功率放大器2、声源播放器3、水听器4、音频采集卡5、采集计算机6和电源7 ; 其中;水下扬声器1为安装在船池中水面8之下的音频播放装置,其通过功率放大器2与声源播放器3相连接;声源播放器3为音频信号播放装置,用于生成实验所需要的声信号;功率放大器2为音频放大器,用于为水下扬声器1提供足够的功率;水听器4为安装在船池中水面8之下的水下声信号的采集装置,其通过音频采集卡5与采集计算机6相连接,电源7 为水听器4的电源,其与水听器4相连接; [001 Primer 1, the present invention provides experimental pool PCCP Ship squib warning system based on the monitoring signal of a loudspeaker including ice 1, the power amplifier 2, a sound source player 3, 4 hydrophone, audio capture card 5 , power acquisition computer 6 and 7; wherein; underwater speaker audio playback apparatus 1 is mounted in the vessel below the water surface in the pool 8, 3 through the power amplifier 2 is connected to the sound source player; sound source audio player 3 4 underwater hydrophones mounted in the ship below the water surface of the pool 8; signal playback means, for generating an acoustic signal required for the experiment; 2 audio amplifier amplifiers, for providing sufficient power for underwater speaker 1 an acoustic signal acquisition device, through which 6 audio capture card connected with the acquisition computer 5, 7 hydrophones power supply 4, which is connected to hydrophone 4;

[0016] 水下扬声器1、功率放大器2和声源播放器3为声信号的发送部分,水听器4、音频采集卡5、采集计算机6和电源7为声信号的接收部分; [0016] underwater speaker 1, the power amplifier 2 to the sound source 3 player acoustic signal transmission section, hydrophone 4, 5 audio capture card, collection computer 6 and 7 to the power receiving portion of the acoustic signal;

[0017] 声信号的发送主要通过功率放大器2和水下扬声器1来实现的,声信号的采集主要是通过音频采集卡5实现的; Transmitting [0017] the main acoustic signal through the power amplifier 2 and an underwater loudspeaker achieved, the main acoustic signal acquisition is achieved by an audio capture card 5;

[001引所述的水下扬声器1选用浙江金华天阳电子有限公司生产的JX00A型水下扬声器,该扬声器由两个直径*高87mm的圆柱组成,重量为1. 6千克,声源数3个,声源方向数为2个。 [001 underwater speaker 1 of the cited selection Zhejiang Huatian Yang Electronics Co. underwater JX00A of a speaker by the two cylinders 87mm diameter * height composition, weight of 1.6 kg, the number of sound source 3 a, the sound source direction is two.

[0019] 所述的声源播放器3采用一台具有声卡的计算机。 [0019] the sound source 3 player uses a computer with a sound card.

[0020] 所述的音频采集卡5为USB音频采集卡,其通过USB接口与采集计算机6相连接。 [0020] The audio capture card 5 for the USB audio capture card, which is connected to the computer via the USB interface 6 and collected. [002U 本发明提供的基于PCCP爆管预警监测信号的船池实验系统的实验结果: [002U present invention provides experimental results based on experimental pool PCCP Ship early warning and monitoring system squib signal:

[0022] 实验中首先用水下扬声器1播放断丝声信号,并在船池的不同位置对断丝声信号进行测量,原始的断丝声信号时域图及频域图如图2所示; A speaker playing an acoustic signal at breakage [0022] First experiments with water, and broken wires acoustic signal measured at different locations of the ship tank, broken wire original acoustic signal in the frequency domain and time-domain diagram shown in Figure 2;

[0023] 从图中可W看到,PCCP的真实断丝声信号的有效时间非常短,只有200毫秒左右。 [0023] W can be seen from the figure, the effective real time acoustic signal PCCP broken wire is very short, only about 200 ms.

[0024] 表1反映了断丝声信号在船池中传播的结果,从表1中可W看出,尽管断丝声信号在船池中传播100米之后,信号幅度有较大程度的衰减,但是断丝声信号相对于其它噪声声信号还是很明显的。 [0024] Table 1 reflects the results of the acoustic signal propagating broken wires in the ship tank, can be seen from Table 1, W, although yarn breakage acoustic signal after propagation tank ship 100 m, the signal amplitude greater degree of attenuation, However, the broken wire acoustic signal relative to other acoustic noise signals is obvious.

[0025] 表1断丝声信号在船池中传播的结果 [0025] The results in Table 1 broken wire acoustic signal propagating in the tank vessel

[0026] [0026]

Figure CN104569153AD00051

[0027] 图3为断丝声信号传播衰减曲线图,如图3所示的声信号传播衰减曲线说明,首先声信号都是在最初传播的10-20米范围内有很大的衰减,虽然在20米到100米的范围内也有衰减,但是其衰减的幅度已经比较小了。 [0027] FIG. 3 is a broken wire acoustic signal propagation attenuation curve, the attenuation curve illustrates the acoustic signal propagation shown in Figure 3, the first acoustic signal is attenuated greatly in the first 10-20 meters of propagation, although in the range of 20 to 100 meters it is also attenuated, but the amplitude attenuation has been relatively small.

[002引船池实验的结果表明,断丝声信号在传播100米之后,尽管声信号的幅度有较大的衰减,但是断丝声信号的信噪比还是很明显的,因此为后期断丝声信号在PCCP内长距离传播提供了实验支持。 [002 cited experimental results show that the boat pool, broken wires after the acoustic signal propagation 100 meters, although the magnitude of the acoustic signal greater attenuation, but the broken wire signal to noise ratio of acoustic signals is obvious, therefore the latter broken wire sound signals long distances in the PCCP provides experimental support.

Figure CN104569153AD00052

Claims (4)

  1. 1. 一种基于PCCP爆管预警监测信号的船池实验系统,其特征在于:所述的基于PCCP 爆管预警监测信号的船池实验系统包括: 水下扬声器(1)、功率放大器(2)、声源播放器(3)、水听器(4)、音频采集卡(5)、采集计算机(6)和电源(7);其中:水下扬声器⑴为安装在船池中水面⑶之下的音频播放装置, 其通过功率放大器(2)与声源播放器(3)相连接;声源播放器(3)为音频信号播放装置,用于生成实验所需要的声信号;功率放大器(2)为音频放大器,用于为水下扬声器(1)提供足够的功率;水听器(4)为安装在船池中水面(8)之下的水下声信号的采集装置,其通过音频采集卡(5)与采集计算机(6)相连接,电源(7)为水听器⑷的电源,其与水听器⑷相连接。 An experimental cell PCCP vessel squib warning system based on the monitoring signal, characterized in that: said test cell PCCP vessel squib warning system based on the monitoring signal comprises: an underwater speaker (1), the power amplifier (2) , a sound source player (3), the hydrophone (4), an audio capture card (5), acquisition computer (6) and a power supply (7); wherein: ⑴ underwater speaker is mounted under the water tank ship ⑶ audio playback apparatus, which is connected through the power amplifier (2) with a sound source player (3); player sound source (3) for the audio signal playback means for generating an acoustic signal required for the experiment; power amplifier (2 ) for the audio amplifier, for providing sufficient power for underwater speaker (1); hydrophone (4) is mounted on a ship tank (underwater acoustic signal acquisition means) 8 below, by audio collection card (5) and acquisition computer (6) connected to a power source (7) is a hydrophone ⑷ power supply, which is connected to hydrophone ⑷.
  2. 2. 根据权利要求1所述的基于PCCP爆管预警监测信号的船池实验系统,其特征在于: 所述的水下扬声器(1)选用浙江金华天阳电子有限公司生产的JXOOA型水下扬声器,该扬声器由两个直径*高87_的圆柱组成,重量为1. 6千克,声源数3个,声源方向数为2个。 Ship according to claim PCCP experimental pool squib warning system based on the monitoring signal, characterized in that said 1: the underwater loudspeaker (1) selection of Zhejiang Huatian Yang Electronics Co., Ltd. of underwater speaker JXOOA the loudspeaker consists of two cylindrical diameter * height 87_ composition, weight of 1.6 kg, the sound source 3, the number of sound source direction is two.
  3. 3. 根据权利要求1所述的基于PCCP爆管预警监测信号的船池实验系统,其特征在于: 所述的声源播放器(3)采用一台具有声卡的计算机。 3. PCCP Ship experimental pool squib warning system based on the monitor signal, wherein according to claim 1: the sound source playback device (3) using a computer with a sound card.
  4. 4. 根据权利要求1所述的基于PCCP爆管预警监测信号的船池实验系统,其特征在于: 所述的音频采集卡(5)为USB音频采集卡,其通过USB接口与采集计算机(6)相连接。 4. PCCP Ship experimental pool squib warning system based on the monitoring signal, characterized in that said claim 1: said audio acquisition card (5) is a USB audio capture card, which is collected with a computer through a USB interface (6 ) is connected.
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CN102635786A (en) * 2012-03-15 2012-08-15 朱朝晖 Online real-time monitoring system for an embedded delivery pipeline
CN204389445U (en) * 2014-12-31 2015-06-10 天津大学 Ship pool experimental system based on PCCP (prestressed concrete cylinder pipe) pipe explosive early warning and monitoring signal

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