CN105024749B - A system and method for protecting an optical path failure rate of the test device - Google Patents

A system and method for protecting an optical path failure rate of the test device Download PDF

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CN105024749B
CN105024749B CN 201510279090 CN201510279090A CN105024749B CN 105024749 B CN105024749 B CN 105024749B CN 201510279090 CN201510279090 CN 201510279090 CN 201510279090 A CN201510279090 A CN 201510279090A CN 105024749 B CN105024749 B CN 105024749B
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signal
optical
test
splitter
connected
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CN 201510279090
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CN105024749A (en )
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杨春
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武汉网锐实验室(信息产业光通信产品质量监督检验中心)
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Abstract

本发明公开了一种测试光路保护设备失效率的系统及方法,涉及通信光路测试领域。 The present invention discloses a system and method for testing the efficiency of an optical path failure protection devices, to a communication light path testing. 该系统包括被测试设备、光源、两只分光器:Splitter1和Splitter2、两台光开关:OSW1和OSW2、光功率计和控制装置;所述光源通过Splitter1分别与OSW1、被测试设备的保护分光器相连;OSW1的支路通道ch1与Splitter2相连,支路通道ch2悬空;Splitter2分别与OSW2、被测试设备的工作分光器相连,被测试设备的光开关输出端与OSW2相连,OSW2与光功率计相连;控制装置分别与OSW1、OSW2、光功率计相连。 The system comprises a device under test, a light source, two splitter: Splitter1 and Splitter2, two optical switches: OSW1 and OSW2, power meter and control means; Splitter1 by said light source respectively OSW1, protected splitter test device connected; OSW1 branch channels ch1 and Splitter2 connected to the branch channel ch2 suspended; Splitter2 OSW2 respectively, are connected to the test equipment operating splitter is connected to the output terminal of the optical switch OSW2 test equipment, power meter connected OSW2 ; control means respectively OSW1, OSW2, optical power meter is connected. 本发明不仅显著的提高了测试效率和测试精度,而且劳动强度较低,便于人们使用,适于推广。 The present invention not only significantly improve the testing efficiency and accuracy, and less labor intensive, it easy to use, suitable for popularization.

Description

一种测试光路保护设备失效率的系统及方法 A system and method for protecting an optical path failure rate of the test device

技术领域 FIELD

[0001]本发明涉及通彳目光路测试领域,具体涉及一种测试光路保护设备失效率的系统及方法。 [0001] The present invention relates to a road test eyes through the left foot, and in particular relates to a system and method for testing the efficiency of an optical path failure protection devices.

背景技术 Background technique

[0002]光通信系统中常用的光路保护设备(例如OLP,即光线路保护设备、光旁路器等)内部使用OSW (光开关)作为光路切换手段。 [0002] commonly used in optical communication systems optical path protection devices (e.g. the OLP, i.e., an optical line protection devices, optical bypass, etc.) internally of OSW (optical switch) as an optical path switching means. 参见图i所示,光路保护设备内置的光探测器检测到输入功率降低至设定的光功率门限值以下时,会产生LOS (信号丢失告警)信号,进而触发光开关切换。 Referring to Figure i, the optical path of the light protection device built probe detects the input power to optical power is reduced to below a threshold value, set the LOS is generated (loss of signal alarm) signal which triggers the optical switch. a a

[0003]对于光路保护设备而言,其失效率(即不能出现该切换时不切换、不该切换时切换的情况)需要控制在万分之一以下(即一万次切换只能出现少于一次的失误),目前,人们一般通过手动和自动两种方法测试光路保护设备失效率。 [0003] For the optical path protection device failure rate (i.e., does not switch the switch not appear, when a handover should handover) is necessary to control one ten thousandth or less (i.e., ten thousand times less than the switching occurs only a mistake), at present, it is generally through manual and automatic method for testing optical path protection equipment failure rate.

[0004]下面分别对上述手动和自动两种方法的具体过程和缺陷进行说明。 [0004] The following specific processes were the manual and automatic methods and defects will be described.

[0005] (1)手动测试光路保护设备失效率时,通过人工在工作光路和备份光路之间进行切换,用功率计在输出光路查看光功率是否有变化,若是则切换成功,否则切换失败。 [0005] (1) manual test optical path failure rate protection equipment, manually between the working optical path and the backup optical path switching, by a power meter at the output of the optical path to see if the optical power changes, if the handover is successful or handover failure. 由于需要将失效率控制在万分之一以下,因此人工需要重复上述过程至少一万次以上,不仅费时费力,工作效率较低,而且需要计算切换次数,难以实施。 The failure rate due to the need to control one ten thousandth or less, need to repeat the process of doing so at least ten thousand times, not only time consuming, low productivity, but also calculate the number of switches, it is difficult to implement.

[0006] (2)自动测试光路保护设备失效率,就是通过计算机程序控制相关仪表自动完成测试过程;但是,自动测试光路保护设备失效率只是人们提出的一种理念,目前没有具体的实施过程。 [0006] (2) Automatic test optical path protection device failure rate, that is, by a computer program controlling associated meter automate the testing process; however, the automatic test light path protection of the failure rate of the device is only an idea has been proposed in, there is no specific implementation process.

发明内容 SUMMARY

[0007]针对现有技术中存在的缺陷,本发明的目的在于提供一种测试光路保护设备失效率的系统及方法,本发明不仅显著的提高了测试效率和测试精度,而且劳动强度较低,便于人们使用,适于推广。 [0007] the defects in the prior art, the object of the present invention is to provide an optical system and method for testing the failure rate of the protection device, the present invention not only significantly improve the testing efficiency and accuracy, and less labor intensive, easier for people to use, suitable for promotion.

[0008] 为达到以上目的,本发明提供的测试光路保护设备失效率的系统,包括被测试设备,被测试设备包括两只分光器:工作分光器和保护分光器、两只光探测器:工作光探测器和保护光探测器、控制单元和光开关;工作分光器通过工作光探测器与控制单元相连,保护分光器通过保护光探测器与控制单元相连;工作分光器、保护分光器、控制单元均与光开关相连; [0008] To achieve the above object, the optical path of the test equipment failure rate of the system of protection provided by the invention, comprising a device under test, the test apparatus comprises two splitter: working splitter and the protection splitter, two photodetectors: Work photodetector and a protection optical detector, and the optical switch control unit; work by the working optical splitter and the detector is connected to the control unit, protected by protecting splitter photodetector is connected with the control unit; working splitter, splitter protection, the control unit They are connected to the optical switch;

[0009] 所述测试光路保护设备失效率的系统还包括光源、两只分光器:第一分光器Splitterl和第二分光器Splitter2、两台光开关:第一光开关0SW1和第二光开关0SW2、光功率计和控制装置;所述光源通过Splitterl分别与0SW1、被测试设备的保护分光器相连; 0SW1的支路通道chi与Splitter2相连,支路通道ch2悬空;Splitter2分别与0SW2、被测试设备的工作分光器相连,被测试设备的光开关输出端与0SW2相连,0SW2与光功率计相连;控制装置分别与0SW1、0SW2、光功率计相连; [0009] Test failure rate of the light path protection device system further comprises a light source, a beam splitter two: a first beam splitter and the second beam splitter Splitterl Splitter2, two optical switch: a first optical switch and the second optical switch 0SW2 0SW1 , power meter and control means; and said light source being connected via Splitterl 0SW1 respectively, test equipment protection spectroscope; 0SW1 Splitter2 branch passage connected to the chi, the channel ch2 is suspended branch; Splitter2 respectively 0SW2, the device under test the splitter is connected to the work, the light output of the switch is connected to the test device and 0SW2 connected 0SW2 optical power meter; control means respectively 0SW1,0SW2, optical power meter is connected;

[0010]光源的光信号通过Splitterl分为两路信号,其中一路为输出至被测试设备保护分光器的信号A,另一路信号输出至0SW1的输入口;控制装置控制0SW1在其输出通道Chl和ch2之间切换,在输出通道chi得到一个方波信号,Splitterl将方波信号分为两路信号,其中一路为输出至被测试设备工作分光器的测试设备光开关切换触发信号B,另一路为输出至0SW2的chl输入通道的参考信号C;被测试设备的输出光路信号D输出至0SW2的ch2输入通道,光功率计接收0SW2的输出信号。 [0010] The light source optical signal into two signals by Splitterl, the way in which the output signal A is to the test equipment protection splitter, the other channel signal output to the input port of 0SW1; 0SW1 control means controls at its output channel Chl and switching between CH2, to obtain a square wave signal in the output channel chi, Splitterl square wave signal into two signals, is the way in which output device to be tested to the optical switch test equipment work splitter handover trigger signal B, another way for the 0SW2 chl output to the reference signal C input channels; is the output signal of the optical path of the test equipment to the D input channel ch2 0SW2, the power meter receives the output signal of 0SW2.

[0011] 在上述技术方案的基础上,所述控制装置选用计算机。 [0011] Based on the foregoing technical solution, the selection of a computer control means.

[0012]本发明提供的基于上述系统的测试光路保护设备失效率的方法,包括以下步骤: [0013] S1:将光源设置为连续光输出状态,将被测试设备的光开关与工作分光器相连,此时工作分光器的输出信号B处于高电平状态;被测试设备的光开关将B作为被测试设备的输出信号D进行输出,转到步骤S2; [0012] The test optical path protection device failure rate of the method of the above-described system based on, comprising the steps of the present invention provides: [0013] S1: light source is provided as a continuous light output state, the device to be tested optical switch work splitter connected , then the output signal B to work at a high level state of the spectroscope; a test equipment to the optical switch B as the output signal D of the test device output, go to step S2;

[00M] S2:控制装置根据预先设置的切换次数和切换时间,控制0SW1在其输出通道chl和ch2之间切换;被测试设备的工作光探测器实时检测B的光功率是否小于预先设置的信号丢失告警L0S门限,若是,则B信号处于低电平,转到步骤S3,否则B信号处于高电平,转到步骤S4; [00M] S2: The control device switching times and the switching time set in advance, the switching control 0SW1 between its output channels chl and CH2; photodetector detecting operation in real-time optical power testing device B is less than a preset signal L0S loss alarm threshold, if yes, the B signal is at a low level, go to step S3, the signal is high or B, go to step S4;

[0015] S3:工作光探测器向控制单元产生L0S告警,控制单元控制保护光探测器检测收到保护分光器输出的信号A时,控制单元将光开关切换至与保护分光器相连,将A作为被测试设备输出信号D进行输出,转到步骤S5; [0015] S3: working optical detector to the control unit generates an alarm L0S, the control unit controls the protection optical detector detects the received signal A output from the protection splitter, the optical switch control unit switches to the protection splitter is connected to the A is output as a test output device signals D, go to step S5;

[0016] S4:工作光探测器向控制单元发出L0S告警消失信号,控制单元将光开关切换至与工作分光器相连,光开关将B作为被测试设备输出信号D进行输出,转到步骤S5; [0016] S4: working optical detector sends an alarm to the control unit L0S signal disappears, the control unit is connected to the optical switch to the working splitter, the optical switch B is a device to be tested and outputs the output signal D, go to step S5;

[0017] S5:通过控制装置控制0SW2在其输入通道chl、ch2之间轮流切换至少2个来回;每切换一次后,均通过光功率计将接收的信号进行1次采样、并得出采样后的信号波形;OSW2 在输入通道chl上工作时,光功率计接收的信号为C,OSW2在输入通道ch2上工作时,光功率计接收的信号为D,转到步骤S6; [0017] S5: control of the controller at an input channel 0SW2 CHL, alternately switched back and forth between at least two ch2; every time after switching, the received signals are once sampled by the optical power meter, and samples obtained after a signal waveform; OSW2 when working on the input channel chl, the received signal power meter is C, when working on the OSW2 input channel ch2, the received signal power meter is D, go to step S6;

[0018] S6:判断D的信号波形在每个高、低电平时间段内,是否与C的信号波形对齐,若是, 则显示被测试设备有效;否则显示被测试设备失效。 [0018] S6: determining a signal waveform D in each of the high, low period, and the signal waveform C is aligned, and if so, the display device is effectively tested; otherwise the display device is tested to failure.

[0019] 在上述技术方案的基础上,步骤S6采用自动判断方式完成,其具体包括以下步骤: 分别将c和D的信号波形数字化,高电平为“1”,低电平为“〇”,形成两个“oioioior形式的数字信号流;将C和D的数字信号流逐比特进行“与”运算,若运算结果为“0”,则显示被测试设备失效,运算结果中“〇”的个数即为失效总次数;否则显示被测试设备有效。 [0019] Based on the foregoing technical solution, automatic determination step S6 is accomplished, which comprises the steps of: digitizing a signal waveform, respectively, c and D, the high level "1", a low level "square" forming two "digital signal stream oioioior form; the digital signal streams C and D for the bitwise" aND "operation, if the calculation result is" 0 ", the display device being tested to failure, the operation result" square "in is the total number of failure times; otherwise valid display device to be tested.

[0020] 在上述技术方案的基础上,步骤S6采用自动判断方式完成,其具体包括以下步骤: 重放保存在控制装置中的C和D的信号波形,在每个高、低电平时间段内,通过人眼识别C和D 的信号波形的信号波形是否平齐,若是则被测试设备有效,否则被测试设备失效。 [0020] Based on the foregoing technical solution, automatic determination step S6 is accomplished, which comprises the steps of: reproducing a signal waveform C and D are stored in the control device, in each of the high, low-level period inside, a signal waveform by the signal waveform of the human eye to identify whether flush C and D, were tested if a valid device, or the device is tested to failure.

[0021] 在上述技术方案的基础上,步骤S6之后还包括以下步骤:S7:根据步骤S2中的切换次数和被测试设备失效的总次数,计算得到失效率。 [0021] Based on the foregoing technical solution, after step further comprising the step S6: S7: The number of switches in step S2 and the total number of the test equipment failure, the failure rate is calculated.

[0022] 在上述技术方案的基础上,步骤S2中所述切换时间为每4秒切换1次0SW1的输出通道。 [0022] Based on the foregoing technical solution, the step S2, the switching time of the switching of output channel 0SW1 once every 4 seconds.

[0023] 在上述技术方案的基础上,步骤S5中所述OSW2在其输入通道chl、ch2之间轮流切换的次数为3个来回。 [0023] Based on the foregoing technical solution, in step S5, the CHL OSW2 at its input channels, the number of turns is three switching between ch2 back and forth.

[0024]与现有技术相比,本发明的优点在于: [0024] Compared with the prior art, advantages of the present invention:

[0025]本发明的系统能够以全自动的方式仿真人工切换光路的动作、并自动查看光功率计的功率变化,进而判断被测试设备的光路切换是否失效•,切换光路的次数完成后,自动计算失效率。 After the number of times [0025] The system of the invention can be simulated in a fully automatic way the operation manual switching the optical path, and automatically check for power change power meter, so as to determine the optical switching test equipment is invalid •, switching the optical path is completed, the automatic calculated failure rate. 与现有技术中手动测试相比,本发明不仅显著的提高了测试效率和测试精度,而且劳动强度较低,便于人们使用,适于推广。 Compared with the prior art manual testing, the present invention not only significantly improve the testing efficiency and accuracy, and less labor intensive, it easy to use, suitable for popularization.

附图说明 BRIEF DESCRIPTION

[0026]图1为现有技术中光路保护设备的连接框图; [0026] FIG. 1 is a block diagram of apparatus connected to the optical path protection prior art;

[0027]图2为本发明实施例中测试光路保护设备失效率的系统的连接框图; [0027] Figure 2 a block diagram of a test connection failure rate of the light path protection device system embodiment of the invention;

[0028]图3a为本发明实施例中信号A的曲线图; [0028] Figure 3a graph illustrating the signal A embodiment of the invention;

[0029]图3b为本发明实施例中信号啲曲线图; [0029] FIG. 3b embodiment GOD signal graph embodiment of the present invention;

[0030]图3c为本发明实施例中信号C的曲线图; [0030] FIG. 3c graph embodiment of the present embodiment invention, a signal C;

[0031]图3d为本发明实施例中被测试设备有效时信号D的曲线图; [0031] Figure 3d is a graph of the embodiment when the signal D is valid testing apparatus of the present embodiment of the invention;

[0032]图3e为本发明实施例中被测试设备失效时信号A的曲线图。 [0032] FIG. 3e a graph when the present embodiment is a fail signal A testing apparatus embodiment of the invention.

具体实施方式 detailed description

[0033]以下结合附图及实施例对本发明作进一步详细说明。 [0033] The following preferred embodiments of the present invention is described in further detail in conjunction with the accompanying drawings.

[0034] 本发明实施例中的测试光路保护设备失效率的系统,基于以下原理得来。 [0034] The test optical path in the embodiment of the present invention, the failure rate of the equipment protection system, based on the principle come.

[0035]由于光路保护设备在实际网络中运行时通常是禁止短时间内频繁切换的(比如有些产品设定,当10分钟内连续切换3次,则在后面一段时间内禁止任何切换动作),本发明要实现自动化测试,则需要解除上述禁止,已加快测试进程,缩短测试时间。 [0035] Since the optical path of the protection device is operating in a real network is prohibited during normal short frequent handover (for example, some setting products, when switching over 10 minutes three times in a row, then prohibits the switching operation in the later period of time), the present invention to achieve the automated test, you need to lift the prohibition, it has accelerated the testing process, reduces test time. 与此同时,被测试设备还需要被设置为切换自动返回状态,所谓自动返回就是当设备工作光路信号断开而保护通道信号正常时,自动切换到保护光路,当工作光路信号恢复正常时,设备自动返回工作光路。 When at the same time, the test equipment needs to be set automatically returns the status of handover, the so-called automatic return is when the device working optical path signal disconnection protection channel signal is normal, it is automatically switched to the protection optical path, when a working optical path signal is restored, the device automatic optical path to return to work.

[0036] 本发明实施例中的测试光路保护设备失效率的系统,包括需要测试的光路保护设备,参见图1所示,光路保护设备(以下简称被测试设备)包括两只分光器:工作分光器和保护分光器,两只光探测器:工作光探测器和保护光探测器、控制单元和光开关。 [0036] Failure Rate embodiment of the test optical path protection device system embodiment of the present invention, includes a light path protection device to be tested, the optical path protection apparatus Referring to FIG. 1 (hereinafter referred to as the test apparatus) comprising two splitter: working spectral and a protective beam splitter, two light detector: working and protection optical detector photodetector, and the optical switch control unit. 工作分光器通过工作光探测器与控制单元相连,保护分光器通过保护光探测器与控制单元相连;工作分光器、保护分光器、控制单元均与光开关相连。 Working through the working optical splitter and the detector is connected to the control unit, protected by protecting splitter photodetector is connected with the control unit; working splitter, splitter protection, the control unit are connected to the optical switch.

[0037] 参见图2所示,所示测试光路保护设备失效率的系统还包括光源、两只分光器:第一分光器Splitterl和第二分光器Splitter2、两台光开关:第一光开关0SW1和第二光开关0SW2、光功率计和控制装置(本实施例中控制装置为计算机)。 [0037] Referring to Figure 2, the test failure rate of the light path shown protective device system further comprises a light source, a beam splitter two: a first beam splitter and the second beam splitter Splitterl Splitter2, two optical switch: a first optical switch 0SW1 and a second optical switch 0SW2, power meter and a control device (control device according to the present embodiment as a computer).

[0038] 光源通过Splitterl分别与0SW1、被测试设备的保护分光器相连,0SW1的支路通道chi与Splitter2相连,支路通道ch2悬空;Splitter2分别与0SW2、被测试设备的工作分光器相连,被测试设备的光开关输出端与0SW2相连,0SW2与光功率计相连;计算机分别与0SW1、 0SW2、光功率计相连。 [0038] The light source and the 0SW1, are connected through protection devices were tested Splitterl splitter, 0SW1 Splitter2 branch passage connected to the chi, the channel ch2 is suspended branch; 0SW2 are connected with each Splitter2, test equipment work splitter is the optical output of the switch is connected to the test device and 0SW2 connected 0SW2 optical power meter; computer 0SW1, 0SW2, respectively connected to an optical power meter.

[0039] 光源的光信号通过Splitterl分为两路信号,其中一路为输出至被测试设备保护分光器的信号A(A的光功率为X-10dBm,其信号曲线参见图3a所示),另一路信号输出至0SW1 的输入口。 [0039] The light source optical signal into two signals by Splitterl, the way in which the device under test is output to a signal splitter protected A (A is the optical power of X-10dBm, which is shown in the signal graph see FIG. 3a), the other output to one signal input port of 0SW1.

[0040] 计算机控制0SW1在其输出通道chi和ch2之间切换,在输出通道chi得到一个方波信号,Splitterl将方波信号分为两路信号,其中一路为输出至被测试设备工作分光器的测试设备光开关切换触发信号B,另一路为输出至0SW2的chi输入通道的参考信号C。 [0040] Computer controlled 0SW1 switch between its output channels CH2 and chi, to obtain a square wave signal in the output channel chi, Splitterl square wave signal into two signals, wherein the output all the way to the work of the device under test spectroscope test device light switch trigger signal B, another way to reference the output signal of the input channel chi 0SW2 of C. 被测试设备的输出光路信号D输出至0SW2的ch2输入通道,光功率计接收0SW2的输出信号。 The output optical path of the test device to signal D input channel ch2 0SW2, the power meter receives the output signal of 0SW2.

[0041] 参见图3b和图3c所示,信号B和C的信号形状和相位关系相同;B处于高电平时光功率为XdBm,C处于高电平时的光功率为ZdBm;B和C处于低电平的光功率相同,均为YdBm,Y值为光功率计能探测到的最低电平值。 [0041] Referring to FIG. 3b and FIG, 3c same shape and phase relationship between signals B and C; B time at a high level power XdBm, optical power at a high level as the C ZdBm; B and C are low the same optical power level, are YdBm, Y is the most power meter can detect low value.

[0042] 本发明实施例中基于上述系统的测试光路保护设备失效率的方法,包括以下步骤: [0042] The procedure of Example protection device test failure rate based on the optical path of the system according to the present invention, comprising the steps of:

[0043] S1:将光源设置为CW(Continue Wave,连续光输出状态),将被测试设备初始设置为在工作光路上工作,即将被测试设备的光开关与工作分光器相连,此时工作分光器的输出信号B处于高电平状态;被测试设备的光开关将B作为被测试设备的输出信号D进行输出(忽略被测试设备自身光插入损耗时,D与B的光功率相同),转到步骤S2。 [0043] S1: light source is provided to CW (Continue Wave, continuous light output state), the test apparatus is initially set to operate in a working optical path, the test is about to be connected to the optical switch device working splitter, the working spectral case output signal B is at a high level state; the optical switch device will test B as the output signal D of the test device output (to be ignored when their optical insertion loss, the optical power of the same test equipment D and B), transferrin to step S2.

[0044] S2:计算机根据预先设置的切换次数和切换时间,控制0SW1在其输出通道chi和ch2之间切换(本实施例中的每4秒切换1次),切换时会改变B的光功率(0SW1切换到chi时,B 的光功率大于等于L0S门限,0SW1切换到ch2时,B的光功率小于L0S门限);被测试设备的工作光探测器实时检测B的光功率是否小于预先设置的L0S (信号丢失告警)门限,若是,则B信号处于低电平,转到步骤S3,否则B信号处于高电平,转到步骤S4。 [0044] S2: The number of switches and computer switching time set in advance, the control 0SW1 handover (handover in this embodiment once every four seconds) between its output channels CH2 and chi, B will change the optical power of the switching (when the chi, the optical power of B is greater than or equal 0SW1 switching L0S threshold, 0SW1 switched to ch2, the optical power of B is less than L0S threshold); were detected in real time the working optical detector test equipment optical power B is less than a preset L0S (loss of signal alarm) threshold, if yes, the B signal is at a low level, go to step S3, the signal is high or B, go to step S4.

[0045] S3:工作光探测器向控制单元产生L0S告警,控制单元控制保护光探测器检测收到保护分光器输出的信号A时(S卩A正常,A—直处于通光状态),控制单元将光开关切换至与保护分光器相连,将A作为被测试设备输出信号D进行输出,D与A的光功率相同(忽略被测试设备自身光插入损耗),转到步骤S5。 [0045] S3: L0S working optical detector generates an alarm to the control unit, the control unit controls the protection optical detector detects the received signal output from the A protective splitter (S A normal Jie, A- is a straight light passing state), the control means to switch the optical beam splitter is connected with the protection of the test apparatus a as the output signal D OUT, D and a, the same optical power (ignoring the device under test itself optical insertion loss), go to step S5.

[0046] S4:工作光探测器向控制单元发出L0S告警消失信号,控制单元将光开关切换至与工作分光器相连,光开关将B作为被测试设备输出信号D进行输出,转到步骤S5。 [0046] S4: working optical detector sends an alarm to the control unit L0S signal disappears, the control unit is connected to the optical switch to the working splitter, the optical switch B is a device to be tested and outputs the output signal D, goes to step S5.

[0047] S5:通过计算机控制0SW2在其输入通道chi、ch2之间轮流切换,在1个高电平或1个低电平信号期间至少2个来回(本实施例中为3个来回);参见图3c和图3d所示,每切换一次后,均通过光功率计将接收的信号进行1次采样、并得出采样后的信号波形。 [0047] S5: 0SW2 controlled by a computer at an input channel chi, alternately switching between ch2, during a high or a low signal back and forth at least two (three in the present embodiment, back and forth); Referring to FIGS. 3c and 3d shown in FIG., each time after switching, the received signals are once sampled by the optical power meter, and a signal waveform obtained after the sampling. 0SW2在输入通道chi上工作时,光功率计接收的信号为C,0SW2在输入通道ch2上工作时,光功率计接收的信号为D,转到步骤S6。 When working on the input channel 0SW2 chi, the received signal power meter is C, when working on the 0SW2 input channel ch2, the received signal power meter is D, goes to step S6.

[0048] S6:通过自动或人工判断方式,判断D的信号波形在同一时间段(即每个高、低电平时间段)内,是否与C的信号波形对齐,若是,则显示被测试设备有效,转到步骤S7;否则显示被测试设备失效(例如图3e所示,虚线代表未对齐),转到步骤S7。 [0048] S6: determining by automatic or manual mode, determining a signal waveform D at the same time (i.e. each high level period), a signal waveform C is aligned with, and if so, the display device to be tested valid, go to step S7; otherwise, displaying the test equipment failure (e.g., the dotted line represents unaligned FIG. 3e), go to step S7.

[0049] 步骤S6中通过自动判断方式时,分别将C和D的信号波形数字化,高电平为“1”,低电平为“0”,形成两个“01010101”形式的数字信号流,将C和D的数字信号流逐比特进行“与” 运算,即数字相同乘积为1,不同乘积为〇,运算结果中“〇”的个数即为失效总次数。 When [0049] Step S6 is determined by the automatic mode, respectively digitize the signal waveform C and D, the high level "1" to low level "0", forming two "01010101" in the form of digital signal streams, the digital signal streams C and D bits by the total number "and" number of operators, i.e., the same as a product number, a product of different square, the operation result "square" is the failure of.

[0050] 步骤S6中人工判断方式时,重放保存在计算机中的C和D的信号波形,在同一时间段内,通过人眼识别C和D的信号波形的信号波形是否平齐,若是则被测试设备有效,否则被测试设备失效。 [0050] Step S6 is determined in an artificial manner, stored in the computer playback signal waveforms C and D in the same time period, the signal waveform by the signal waveform of the human eye to identify whether flush C and D, if the effectively test equipment, test equipment failure otherwise.

[0051] S7:根据步骤S2中的切换次数和被测试设备失效的总次数,计算得到失效率,结束。 [0051] S7: The number of switches in step S2 and the total number of the test equipment failure, the failure rate calculated to end.

[0052] 本发明不局限于上述实施方式,对于本技术领域的普通技术人员来说,在不脱离本发明原理的前提下,还可以做出若干改进和润饰,这些改进和润饰也视为本发明的保护范围之内。 [0052] The present invention is not limited to the above embodiments, those of ordinary skill in the art, in the present invention without departing from the principles of the premise, can make various improvements and modifications, improvements and modifications are also regarded as the within the scope of the invention. 本说明书中未作详细描述的内容属于本领域专业技术人员公知的现有技术。 In this specification is not described in detail belong to the prior art techniques known to technicians.

Claims (8)

  1. 1. 一种测试光路保护设备失效率的系统,包括被测试设备,被测试设备包括两只分光器:工作分光器和保护分光器、两只光探测器:工作光探测器和保护光探测器、控制单元和光开关;工作分光器通过工作光探测器与控制单元相连,保护分光器通过保护光探测器与控制单元相连;工作分光器、保护分光器、控制单元均与光开关相连; 其特征在于:所述测试光路保护设备失效率的系统还包括光源、两只分光器:第一分光器Splitterl和第二分光器Splitter2、两台光开关:第一光开关0SW1和第二光开关0SW2、光功率计和控制装置;所述光源通过Splitter 1分别与0SW1、被测试设备的保护分光器相连; OSffl的支路通道chi与Splitter2相连,支路通道ch2悬空;Splitter2分别与0SW2、被测试设备的工作分光器相连,被测试设备的光开关输出端与0SW2相连,0SW2与光功率计相连;控制装置分别与0SW1、 1. A test failure rate of the light path protection device system, comprising a device under test, the test apparatus comprises two splitter: working splitter and the protection splitter, two light detector: working and protection optical detector photodetector , the control unit and the optical switch; work by the working optical splitter and the detector is connected to the control unit, protected by protecting splitter photodetector is connected with the control unit; working splitter, splitter protection, the control unit are connected to the optical switch; wherein comprising: an optical path failure rate of the protection system of the test apparatus further comprises a light source, a beam splitter two: a first beam splitter and the second beam splitter Splitterl Splitter2, two optical switch: a first optical switch and the second optical switch 0SW1 0SW2, power meter and control means; splitter by said light source being connected to the 0SW1 1, respectively, to protect the test device spectroscope; OSffl Splitter2 branch passage connected to the chi, the channel ch2 is suspended branch; Splitter2 respectively 0SW2, the device under test the splitter is connected to the work, the light output of the switch is connected to the test device and 0SW2 connected 0SW2 optical power meter; control means respectively 0SW1, 0SW2、光功率计相连; 光源的光信号通过Splitterl分为两路信号,其中一路为输出至被测试设备保护分光器的信号A,另一路信号输出至0SW1的输入口;控制装置控制0SW1在其输出通道chi和ch2之间切换,在输出通道chi得到一个方波信号,Splitterf将方波信号分为两路信号,其中一路为输出至被测试设备工作分光器的测试设备光开关切换触发信号B,另一路为输出至0SW2 的chi输入通道的参考信号C;被测试设备的输出光路信号D输出至0SW2的ch2输入通道,光功率计接收0SW2的输出信号。 0SW2, optical power meter is connected; source optical signal into two signals by Splitterl, wherein all the way to the output device to be tested protected signal splitter A, the other channel signal output to the input port 0SW1; a control means for controlling its 0SW1 switching between the output channels CH2 and chi, to obtain a square wave signal in the output channel chi, Splitterf square wave signal into two signals, wherein the output all the way to the switch trigger signal is an optical switching device B test equipment test work spectroscope another way is output to the reference signal input channel C chi 0SW2; a output signal light path to the test equipment D input channel ch2 0SW2, the power meter receives the output signal of 0SW2.
  2. 2. 如权利要求1所述的测试光路保护设备失效率的系统,其特征在于:所述控制装置选用计算机。 Test failure rate of the light path of the protective device 2. The system as claimed in claim 1, wherein: said selection means control computer.
  3. 3. —种基于权利要求1或2所述系统的测试光路保护设备失效率的方法,其特征在于, 包括以下步骤: S1:将光源设置为连续光输出状态,将被测试设备的光开关与工作分光器相连,此时工作分光器的输出信号B处于高电平状态;被测试设备的光开关将B作为被测试设备的输出信号D进行输出,转到步骤S2; S2:控制装置根据预先设置的切换次数和切换时间,控制0SW1在其输出通道chi和ch2 之间切换;被测试设备的工作光探测器实时检测B的光功率是否小于预先设置的信号丢失告警L0S门限,若是,则B信号处于低电平,转到步骤S3,否则B信号处于高电平,转到步骤S4; S3:工作光探测器向控制单元产生L0S告警,控制单元控制保护光探测器检测收到保护分光器输出的信号A时,控制单元将光开关切换至与保护分光器相连,将A作为被测试设备输出信号D进行输出,转到步骤S5; S4: 3. - seed light path protection apparatus based test failure rate of 1 or 2 The method of the system as claimed in claim, characterized in that it comprises the following steps: S1: light source is provided as a continuous light output state, optical switching device to be tested and working splitter is connected, then the output signal B to work at a high level state of the spectroscope; a test equipment to the optical switch B as the output signal D of the test device output, go to step S2; S2: control means according to a pre switching times and the switching time is set, the control 0SW1 switch between its output channel and chi CH2; photodetector detecting operation in real-time optical power testing device B is less than a preset signal L0S loss alarm threshold, if yes, B signal is at a low level, go to step S3, the signal is high or B, go to step S4; S3: L0S working optical detector generates an alarm to the control unit, the control unit controls the protection optical detector detecting the beam splitter receives protection a signal output from the control unit to switch the optical beam splitter is connected with the protection of the apparatus a as the test output signal D is outputted, go to step S5; S4: 作光探测器向控制单元发出L0S告警消失信号,控制单元将光开关切换至与工作分光器相连,光开关将B作为被测试设备输出信号D进行输出,转到步骤S5; S5:通过控制装置控制0SW2在其输入通道chi、ch2之间轮流切换至少2个来回;每切换一次后,均通过光功率计将接收的信号进行1次采样、并得出采样后的信号波形;0SW2在输入通道chi上工作时,光功率计接收的信号为C,0SW2在输入通道ch2上工作时,光功率计接收的信号为D,转到步骤S6; S6:判断D的信号波形在每个高、低电平时间段内,是否与C的信号波形对齐,若是,则显示被测试设备有效;否则显示被测试设备失效。 The photodetector as sent to the control unit L0S alarm signal disappears, the control unit is connected to the optical switch to the working splitter, the optical switch B is a device to be tested and outputs the output signal D, go to step S5; S5: control device 0SW2 control channel Chi at its input, switch turns back and forth between at least two ch2; every time after switching, the received signals are once sampled by the optical power meter, and a signal waveform obtained sampled; 0SW2 input channels in operation the Chi, the received signal power meter is C, when working on the 0SW2 input channel CH2, the received signal power meter D, go to step S6; S6: determining a signal waveform D in each of the high, low level period, a signal waveform C is aligned with, and if so, the display device is effectively tested; otherwise the display device is tested to failure.
  4. 4.如权利要求3所述的测试光路保护设备失效率的方法,其特征在于:步骤S6采用自动判断方式完成,其具体包括以下步骤:分别将C和D的信号波形数字化,高电平为“1”,低电平为二形成两个“010101 〇1 ”形式的数字信号流;将(^和!)的数字信号流逐比特进行“与,,运算,若运算结果为“0”,则显示被测试设备失效,运算结果中“0”的个数即为失效总次数;否则显示被测试设备有效。 4. The test device failure rate optical path protection method according to claim 3, wherein: the step S6 to complete the automatic determination mode, which comprises the steps of: digitizing a signal waveform, respectively C and D, high level "1", a low level two to form two "〇1 010101" in the form of a digital signal stream; and (! ^ and) is carried out bit by bit digital signal stream "operation ,, and, if the calculation result is" 0 ", the display device being tested to failure, the number of the operation result "0" is the total number of failures; otherwise valid display device to be tested.
  5. 5.如权利要求3所述的测试光路保护设备失效率的方法,其特征在于:步骤36采用自动判断方式完成,其具体包括以下步骤:重放保存在控制装置中的C和D的信号波形,在每个髙、低电平时间段内,通过人眼识别C和D的信号波形的信号波形是否平齐,若是则被测试设备有效,否则被测试设备失效。 5. The test equipment failure rate optical path protection method according to claim 3, wherein: the step of using the automatic determination mode 36 is completed, which comprises the steps of: reproducing a signal waveform stored in the control device C and D of in each Gao, a low level period of the signal waveform C and D identify eye by people whether flush signal waveform, if the active devices were tested, otherwise failure of the test equipment.
  6. 6.如权利要求3至5任一项所述的测试光路保护设备失效率的方法,其特征在于,步骤S6之后还包括以下步骤:S7:根据步骤S2中的切换次数和被测试设备失效的总次数,计算得到失效率。 6. The test device failure rate optical path protection method according to any one of claims 3-5, characterized in that, after step further comprising the step S6: S7: The number of switches in step S2 and the test equipment failure the total number, the calculated failure rate.
  7. 7.如权利要求3至5任一项所述的测试光路保护设备失效率的方法,其特征在于:步骤S2中所述切换时间为每4秒切换1次OSW1的输出通道。 7. The test device failure rate optical path protection method according to any one of 3-1 to claim 5, wherein: the step S2, the switching time of the switch once every 4 seconds OSW1 output channels.
  8. 8.如权利要求3至5任一项所述的测试光路保护设备失效率的方法,其特征在于:步骤S5中所述0SW2在其输入通道chl、ch2之间轮流切换的次数为3个来回。 8. The test device failure rate optical path protection method according to any one of 3-1 to claim 5, wherein: the step S5, the CHL 0SW2 at its input channels, the number of turns is three switching between back and forth ch2 .
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CN1294795A (en) * 1998-03-18 2001-05-09 西门子公司 Method for establishing communication on standby link in optical transmission facilities

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