CN109039447A - optical network terminal BOB comprehensive calibration test system and method thereof - Google Patents
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
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- H04B10/00—Transmission systems employing electromagnetic waves other than radio-waves, e.g. infrared, visible or ultraviolet light, or employing corpuscular radiation, e.g. quantum communication
- H04B10/07—Arrangements for monitoring or testing transmission systems; Arrangements for fault measurement of transmission systems
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
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- H04B10/07—Arrangements for monitoring or testing transmission systems; Arrangements for fault measurement of transmission systems
- H04B10/075—Arrangements for monitoring or testing transmission systems; Arrangements for fault measurement of transmission systems using an in-service signal
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Abstract
Description
技术领域technical field
本发明涉及光纤通信技术领域，具体涉及一种光网络终端BOB综合校准测试系统及其方法。The invention relates to the technical field of optical fiber communication, in particular to an optical network terminal BOB comprehensive calibration test system and a method thereof.
背景技术Background technique
现有中国电信、中国移动运营商在宽带接入设备都采用吉比特光网络接入终端(GPON)或者以太网光网络接入终端(EPON)。目前，市场上GPON或都EPON产品在光电转换的设计都采用BOB(BOSA on Board)的方法。在生产GPON与EPON设备时，需要对BOB的参数进行校准。校准的参数主要有发射光功能、消光比、Los电平、接收灵敏度等。Existing China Telecom and China Mobile operators all use Gigabit Optical Network Access Terminal (GPON) or Ethernet Optical Network Access Terminal (EPON) for broadband access equipment. At present, GPON or EPON products on the market adopt the method of BOB (BOSA on Board) in the design of photoelectric conversion. When producing GPON and EPON equipment, the parameters of BOB need to be calibrated. The parameters to be calibrated mainly include emitted light function, extinction ratio, Loss level, receiving sensitivity, etc.
但是传统DUT(Device under contro l，被测设备)测试方案都是一台WLAN综测仪对应一款DUT进行测试。这种方案只能每次测试单类型DUT，而不能同时测试多种类型的DUT。对某些DUT的生产厂家而言，一台WLAN综测仪器可以测试多种类型的DUT可以达到经济效益并重的效果。所以一台WLAN综测仪能测试多种类型DUT的方案就尤为显得重要。However, in the traditional DUT (Device under control, device under test) test scheme, one WLAN comprehensive tester corresponds to one DUT for testing. This solution can only test a single type of DUT each time, but cannot test multiple types of DUTs at the same time. For some DUT manufacturers, one WLAN comprehensive test instrument can test multiple types of DUTs to achieve the effect of paying equal attention to economic benefits. Therefore, it is particularly important that a WLAN comprehensive tester can test various types of DUTs.
发明内容Contents of the invention
本发明的目的是提供一种光网络终端BOB综合校准测试系统及其方法，其组网简便，测试效率高，误差率小。The object of the present invention is to provide an optical network terminal BOB comprehensive calibration test system and its method, which is simple in networking, high in test efficiency and low in error rate.
为了实现上述目的，本发明的技术方案如下：In order to achieve the above object, the technical scheme of the present invention is as follows:
一种光网络终端BOB综合校准测试系统，包括支持4通道的误码仪、支持8通道的光衰减器以及支持8通道的光网络综合测试仪，所述误码仪、所述光衰减器以及所述光网络综合测试仪依次连接，所述光网络综合测试仪可与最多8个DUT连接。An optical network terminal BOB comprehensive calibration test system, including a bit error meter supporting 4 channels, an optical attenuator supporting 8 channels, and an optical network comprehensive tester supporting 8 channels, the bit error meter, the optical attenuator and The optical network comprehensive tester is connected sequentially, and the optical network comprehensive tester can be connected with up to 8 DUTs.
优选的，所述误码仪通过光分器与所述光衰减器连接。Preferably, the bit error detector is connected to the optical attenuator through an optical splitter.
本发明还提供了一种根据所述的光网络终端BOB综合校准测试系统的测试方法，包括如下步骤:The present invention also provides a test method according to the optical network terminal BOB comprehensive calibration test system, comprising the following steps:
S1、验证所述DUT的光功率是否达到目标光功率、消光比是否达到目标消光比，判断所述DUT是否是去告警状态、是否是告警状态以及是否有丢包，若所述DUT的光功率低于目标光功率，则执行步骤S2，否则执行步骤S3；若所述DUT的消光比低于目标消光比，则执行步骤S4，否则执行步骤S5；若所述DUT不是去告警状态，则执行步骤S6；若所述DUT不是告警状态，则执行步骤S7；若所述DUT没有丢包，则执行步骤S8，否则执行步骤S9；S1. Verify whether the optical power of the DUT reaches the target optical power, whether the extinction ratio reaches the target extinction ratio, and judge whether the DUT is in the de-alarm state, whether it is in the alarm state, and whether there is packet loss. If the optical power of the DUT is lower than the target optical power, then execute step S2, otherwise execute step S3; if the extinction ratio of the DUT is lower than the target extinction ratio, execute step S4, otherwise execute step S5; if the DUT is not in the alarm state, execute Step S6; if the DUT is not in an alarm state, execute step S7; if the DUT has no packet loss, execute step S8, otherwise execute step S9;
S2、增加所述DUT调节光功率的寄存器值，直至达到所述目标光功率；S2. Increase the register value of the DUT to adjust the optical power until the target optical power is reached;
S3、减少所述DUT调节光功率的寄存器值，直至达到所述目标光功率；S3. Decrease the register value of the DUT to adjust the optical power until the target optical power is reached;
S4、增加所述DUT调节消光比的寄存器值，直至达到所述目标消光比；S4. Increase the register value of the DUT to adjust the extinction ratio until the target extinction ratio is reached;
S5、减少所述DUT调节消光比的寄存器值，直至达到所述目标消光比；S5. Decrease the register value of the DUT to adjust the extinction ratio until the target extinction ratio is reached;
S6、调节其LOS电平；S6, adjusting its LOS level;
S7、调节其LOS电平；S7, adjusting its LOS level;
S8、测试通过；S8, the test is passed;
S9、测试失败。S9. The test fails.
优选的，所述目标光功率为2.8dBm，所述目标消光比为12.5dB。Preferably, the target optical power is 2.8dBm, and the target extinction ratio is 12.5dB.
优选的，在步骤S1中，在判断所述DUT是否是去告警状态时，控制所述光衰减器调节至-28dB。Preferably, in step S1, when judging whether the DUT is in the de-alarm state, the optical attenuator is controlled to be adjusted to -28dB.
优选的，在步骤S1中，在判断所述DUT是否是告警状态时，控制所述光衰减器调节至-34dB。Preferably, in step S1, when judging whether the DUT is in an alarm state, the optical attenuator is controlled to adjust to -34dB.
优选的，在步骤S1中，在判断所述DUT是否有丢包时，控制所述光衰减器调节至-29dB。Preferably, in step S1, when judging whether the DUT has packet loss, the optical attenuator is controlled to be adjusted to -29dB.
优选的，在步骤S1中，所述DUT的光功率和消光比值由所述光发射综合测试仪读取。Preferably, in step S1, the optical power and extinction ratio of the DUT are read by the optical emission comprehensive tester.
与相关技术相比较，本发明提供的光网络终端BOB综合校准测试系统及其方法具有如下有益效果：采用支持8通道的光发射综合测试仪，能够一次对多达8个DUT进行测试，每个通道都是并行测试，因而测试效率高；采用光发射综合测试仪，器件集成度高，节约接入光纤线的设备数量，组网简便，误差率小，因而测试准确。Compared with related technologies, the optical network terminal BOB comprehensive calibration test system and method thereof provided by the present invention have the following beneficial effects: adopting an optical emission comprehensive tester supporting 8 channels can test up to 8 DUTs at a time, each The channels are tested in parallel, so the test efficiency is high; the optical emission comprehensive tester is used, the device integration is high, the number of devices connected to the optical fiber line is saved, the networking is simple, and the error rate is small, so the test is accurate.
附图说明Description of drawings
为了更清楚地说明本发明实施例中的技术方案，下面将对实施例描述中所需要使用的附图作简单地介绍，下面描述中的附图仅仅是本发明的一些实施例，对于本领域普通技术人员来讲，在不付出创造性劳动的前提下，还可以根据这些附图获得其它的附图，其中：In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following will briefly introduce the drawings that need to be used in the description of the embodiments. The drawings in the following description are only some embodiments of the present invention. Ordinary technicians can also obtain other drawings based on these drawings without any creative effort, among which:
图1为本发明光网络终端BOB综合校准测试系统的框架图；Fig. 1 is the frame diagram of the optical network terminal BOB comprehensive calibration test system of the present invention;
图2为本发明光网络终端BOB综合校准测试方法的流程图。Fig. 2 is a flow chart of the BOB comprehensive calibration test method for the optical network terminal of the present invention.
具体实施方式Detailed ways
下面将对本发明实施例中的技术方案进行清楚、完整地描述，显然，所描述的实施例仅是本发明的一部分实施例，而不是全部的实施例。基于本发明中的实施例，本领域普通技术人员在没有做出创造性劳动前提下所获得的所有其它实施例，都属于本发明保护的范围。The following will clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only some of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.
请一并参阅图1，本发明提供一种光网络终端BOB综合校准测试系统100，包括支持4通道的误码仪1、支持8通道的光衰减器2以及支持8通道的光网络综合测试仪3，所述误码仪1、所述光衰减器2以及所述光网络综合测试仪3依次连接，优选的，所述误码仪1、所述光衰减器2以及所述光网络综合测试仪3采用光纤进行连接。Please refer to Fig. 1 together, the present invention provides a kind of optical network terminal BOB comprehensive calibration test system 100, including the bit error meter 1 that supports 4 channels, the optical attenuator 2 that supports 8 channels and the optical network comprehensive tester that supports 8 channels 3. The BER tester 1, the optical attenuator 2 and the optical network comprehensive tester 3 are sequentially connected, preferably, the BER tester 1, the optical attenuator 2 and the optical network comprehensive tester Instrument 3 is connected by optical fiber.
所述误码仪1通过光分器10与所述光衰减器2连接，所述光分器10为1分2的光分器，从而可以实现支持4通道的所述误码仪1与支持8通道的所述光衰减器2连接。The bit error detector 1 is connected to the optical attenuator 2 through an optical splitter 10, and the optical splitter 10 is an optical splitter of 1 to 2, so that the bit error detector 1 supporting 4 channels and supporting 8 channels of the optical attenuator 2 are connected.
所述光网络综合测试仪3由于可以支持8通道，因此可与最多8个DUT4连接，多个所述DUT4可同时进行校准测试，相当于传统的测试仪只能校准测试一个DUT来说，效率提升了6倍，因而测试效率极大提升。The optical network comprehensive tester 3 can support 8 channels, so it can be connected with up to 8 DUT4s, and multiple DUT4s can perform calibration tests at the same time, which is equivalent to a traditional tester that can only calibrate and test one DUT. It has been increased by 6 times, so the test efficiency has been greatly improved.
请一并参阅图1和2，本发明还提供了一种根据所述的光网络终端BOB综合校准测试系统的测试方法，包括如下步骤:Please refer to Fig. 1 and 2 together, the present invention also provides a kind of test method according to described optical network terminal BOB comprehensive calibration test system, comprises the steps:
S1、验证所述DUT的光功率是否达到目标光功率、消光比是否达到目标消光比，判断所述DUT是否是去告警状态、是否是告警状态以及是否有丢包，若所述DUT的光功率低于目标光功率，则执行步骤S2，否则执行步骤S3；若所述DUT的消光比低于目标消光比，则执行步骤S4，否则执行步骤S5；若所述DUT不是去告警状态，则执行步骤S6；若所述DUT不是告警状态，则执行步骤S7；若所述DUT没有丢包，则执行步骤S8，否则执行步骤S9；S1. Verify whether the optical power of the DUT reaches the target optical power, whether the extinction ratio reaches the target extinction ratio, and judge whether the DUT is in the de-alarm state, whether it is in the alarm state, and whether there is packet loss. If the optical power of the DUT is lower than the target optical power, then execute step S2, otherwise execute step S3; if the extinction ratio of the DUT is lower than the target extinction ratio, execute step S4, otherwise execute step S5; if the DUT is not in the alarm state, execute Step S6; if the DUT is not in an alarm state, execute step S7; if the DUT has no packet loss, execute step S8, otherwise execute step S9;
具体的，在判断所述DUT是否是去告警状态时，控制所述光衰减器调节至-28dB；在判断所述DUT是否是告警状态时，控制所述光衰减器调节至-34dB；在判断所述DUT是否有丢包时，控制所述光衰减器调节至-29dB；所述DUT的光功率和消光比值由所述光发射综合测试仪读取。在本发明的具体实施例中，所述目标光功率为2.8dBm，所述目标消光比为12.5dB。Specifically, when judging whether the DUT is in an alarm state, control the optical attenuator to be adjusted to -28dB; when judging whether the DUT is in an alarm state, control the optical attenuator to be adjusted to -34dB; When the DUT has packet loss, control the optical attenuator to adjust to -29dB; the optical power and extinction ratio of the DUT are read by the optical emission comprehensive tester. In a specific embodiment of the present invention, the target optical power is 2.8dBm, and the target extinction ratio is 12.5dB.
S2、增加所述DUT调节光功率的寄存器值，直至达到所述目标光功率；S2. Increase the register value of the DUT to adjust the optical power until the target optical power is reached;
S3、减少所述DUT调节光功率的寄存器值，直至达到所述目标光功率；S3. Decrease the register value of the DUT to adjust the optical power until the target optical power is reached;
S4、增加所述DUT调节消光比的寄存器值，直至达到所述目标消光比；S4. Increase the register value of the DUT to adjust the extinction ratio until the target extinction ratio is reached;
S5、减少所述DUT调节消光比的寄存器值，直至达到所述目标消光比；S5. Decrease the register value of the DUT to adjust the extinction ratio until the target extinction ratio is reached;
S6、调节其LOS电平；S6, adjusting its LOS level;
S7、调节其LOS电平；S7, adjusting its LOS level;
S8、测试通过；S8, the test is passed;
S9、测试失败。S9. The test fails.
与相关技术相比较，本发明提供的光网络终端BOB综合校准测试系统及其方法具有如下有益效果：采用支持8通道的光发射综合测试仪，能够一次对多达8个DUT进行测试，每个通道都是并行测试，因而测试效率高；采用光发射综合测试仪，器件集成度高，节约接入光纤线的设备数量，组网简便，误差率小，因而测试准确。Compared with related technologies, the optical network terminal BOB comprehensive calibration test system and method thereof provided by the present invention have the following beneficial effects: adopting an optical emission comprehensive tester supporting 8 channels can test up to 8 DUTs at a time, each The channels are tested in parallel, so the test efficiency is high; the optical emission comprehensive tester is used, the device integration is high, the number of devices connected to the optical fiber line is saved, the networking is simple, and the error rate is small, so the test is accurate.
以上所述仅为本发明的实施例，并非因此限制本发明的专利范围，凡是利用本发明说明书及附图内容所作的等效结构或等效流程变换，或直接或间接运用在其它相关的技术领域，均同理包括在本发明的专利保护范围内。The above is only an embodiment of the present invention, and does not limit the patent scope of the present invention. Any equivalent structure or equivalent process conversion made by using the description of the present invention and the contents of the accompanying drawings, or directly or indirectly used in other related technologies fields, all of which are equally included in the scope of patent protection of the present invention.
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