WO2011124169A2 - 检测网络设备类型的方法、装置和*** - Google Patents
检测网络设备类型的方法、装置和*** Download PDFInfo
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- WO2011124169A2 WO2011124169A2 PCT/CN2011/073943 CN2011073943W WO2011124169A2 WO 2011124169 A2 WO2011124169 A2 WO 2011124169A2 CN 2011073943 W CN2011073943 W CN 2011073943W WO 2011124169 A2 WO2011124169 A2 WO 2011124169A2
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- network
- reflector
- network device
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- test light
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- 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
- H04B10/071—Arrangements for monitoring or testing transmission systems; Arrangements for fault measurement of transmission systems using a reflected signal, e.g. using optical time domain reflectometers [OTDR]
Definitions
- the present invention relates to communication systems, and more particularly to a method, apparatus and system for detecting a type of network device.
- BACKGROUND With the continuous development of network services, traditional copper broadband access systems cannot meet the bandwidth requirements of existing network services, and PON (Passive Optical Network) technology has the advantages of saving fiber resources and low cost. The advantages of high bandwidth and multi-service access have become the development direction of future network technologies.
- the passive optical network includes an OLT (Optical Line Terminal) and an Optical Network Unit (ONU).
- OLT Optical Line Terminal
- ONU Optical Network Unit
- Each port of the OLT has multiple ONUs through a splitter, and the PON is a P2MP (Point Multiple Point) network.
- the communication between the OLT and the ONU is implemented by means of time division multiplexing, and each ONU communicates with the OLT within the authorized time window of the OLT.
- each port of the PON covers a large number of users and has a wide range, and the service volume of the user services involved is large, it is very important for the operation and maintenance of the PON network.
- the network includes: OLT, optical switch
- OSU Optical Switch Unit
- OTDR Optical Time Domain Reflector
- Optical Power Handheld Optical Power Detection
- Measurement, OPM OPM Measurement, OPM module.
- the application of the network is as follows: When the network is opened for acceptance, it is mainly to test whether the loss of each path meets the design requirements by hand-held 0PM. After the service is started, the service fault is discovered through the device or terminal alarm, and then the fault is determined by 0TDR. position.
- manual Manual input is required, and because the topology of the P2MP network is complex, manual Manual input is not only inefficient, long-term, error-prone, but also unable to detect and detect changes in topology in time.
- Embodiments of the present invention provide a method, apparatus, and system for detecting a type of network device, which automatically and accurately determine the types of various network devices in the network, and thereby automatically determine the topology of the entire network.
- embodiments of the present invention use the following technical solutions:
- a method for detecting a type of a network device comprising: a detecting device and at least one reflector, the detecting device being disposed on a first network device, wherein the at least one reflector matches at least one second network device, The detecting device is located at a front end of the reflector, and the method includes:
- the detecting device transmits a test light pulse to the reflector, wherein each of the reflectors has a different reflectivity
- the detecting device acquires an optical power of a test light pulse reflected by the reflector, and a fiber distance of the reflector to the first network device;
- the detecting device acquires the second according to the optical power of the test light pulse reflected by the reflector, the optical power of the transmitted test light pulse, and the optical fiber distance of the reflector to the first network device. ⁇ value factor of the network device;
- the detecting device determines the device type of the second network device according to the K value factor; wherein the K value factor of the second network device corresponds to the device type of the second network device.
- An apparatus for detecting a network topology is disposed on a first network device, and at least one second network device is connected to the first network device, and each of the second network devices is matched with a reflector.
- the first network device is located at a front end of the second network device, and the device includes:
- a first transmitting unit configured to send a test light pulse to the reflector, wherein each of the reflectors has a different reflectivity
- a first acquiring unit configured to acquire optical power of a test light pulse reflected by the reflector, and a fiber distance of the reflector to the first network device;
- a second acquiring unit configured to: according to the optical power of the test light pulse reflected by the reflector, the optical power of the transmitted test light pulse, and the optical fiber distance of the reflector to the first network device, Determining a ⁇ value factor of the second network device;
- a first device type determining unit configured to determine, according to the ⁇ value factor, a device type of the second network device, where a K value factor of the second network device and a device type of the second network device are A correspondence.
- a system for detecting a type of a network device comprising: the detecting device is disposed on a first network device, and the at least one reflector is matched with at least one second network device, wherein the detecting device is located at the The front end of the reflector;
- the detecting device is configured to send a test light pulse to the reflector; acquire optical power of the test light pulse reflected by the reflector, and a fiber distance of the reflector to the first network device; The optical power of the test light pulse reflected by the reflector, the optical power of the transmitted test light pulse, and the optical fiber distance of the reflector to the first network device, to obtain a K value factor of the second network device; Determining, according to the K value factor, a device type of the second network device, where a K value factor of the second network device is in one-to-one correspondence with a device type of the second network device; Returning the optical power of the reflected test light pulses, wherein each of the reflectors has a different reflectivity.
- a method, device, and system for detecting a type of a network device are provided by an embodiment of the present invention, wherein a test light pulse is sent to the reflector by a detecting device, wherein each of the reflectors has a different reflectivity; and the reflector is acquired The optical power of the reflected test light pulse, and the optical fiber distance of the reflector to the first network device; the optical power of the transmitted test light pulse according to the optical power of the test light pulse reflected by the reflector, And determining, by the optical fiber distance of the reflector to the first network device, a K value factor of the second network device; determining, according to the K value factor, a device type of the second network device; The K value factor of the second network device corresponds to the device type of the second network device. It solves the problem of manually inputting the network topology such as the network device type, and realizes the automatic and accurate determination of the types of various network devices in the network, thereby automatically determining The topology of the entire network.
- FIG. 1 is a schematic structural diagram of a passive optical network in the prior art
- FIG. 3 is a flowchart of a method for detecting a network device type according to an embodiment of the present invention
- FIG. 4 is a flowchart of a specific method for detecting a network device type according to an embodiment of the present invention
- FIG. 5 is a schematic structural diagram of a network for detecting a network device type according to an embodiment of the present invention.
- FIG. 6 is a schematic structural diagram of an apparatus for detecting a network device type according to an embodiment of the present invention.
- An embodiment of the present invention provides a method for detecting a network device type. As shown in FIG. 3, the method includes the following steps:
- the network includes: a detecting device and at least one reflector, the detecting device is disposed on a first network device, and the at least one reflector is matched with at least one second network device, wherein the detecting device is located in the The front end of the reflector.
- the detecting device sends a test light pulse to the reflector, wherein each of the reflectors has a different reflectivity.
- the test light pulse is an optical pulse signal for testing.
- the detecting device acquires optical power of a test light pulse reflected by the reflector, and a fiber distance of the reflector to the first network device. 306. The detecting device acquires the optical power of the test light pulse reflected by the reflector, the optical power of the transmitted test light pulse, and the optical fiber distance of the reflector to the first network device. The K value factor of the second network device.
- the acquiring the K value factor of the second network device specifically includes:
- the detecting device calculates a loss of the optical fiber of the reflector to the first network device according to a fiber distance of the reflector to the first network device and a fiber loss of a unit length;
- the detecting device acquires the first according to the optical power of the test light pulse reflected by the reflector, the optical power of the transmitted test light pulse, and the loss of the optical fiber of the reflector to the first network device.
- the K value factor of the second network device is the K value factor of the second network device.
- the detecting device determines, according to the K value factor, a device type of the second network device, where a K value factor of the second network device corresponds to a device type of the second network device.
- Corresponding correspondence tables corresponding to the K value factor of each second network device and the device type of each second network device are preset on the detecting device.
- the method further includes: determining, according to the determined device type of the second network device and a fiber distance of the reflector to the optical line terminal, The topology of the network.
- the detecting device can also determine the loss of each network branch in the network, and the specific method is: 3 ⁇ 4:
- the detecting device calculates a loss of the optical fiber of the reflector to the optical line terminal according to a fiber distance of the reflector to the optical line terminal and a fiber loss per unit length;
- the method further includes:
- the detecting device acquires a reference value of the optical power corresponding to the reflector; and detects whether the network is based on a reference value of an optical power of the test light pulse reflected by the reflector and an optical power corresponding to the reflector malfunction;
- a method for detecting a network device type is provided by an embodiment of the present invention, wherein a test light pulse is sent to the reflector by a detecting device, wherein each of the reflectors has a different reflectivity; and the test light reflected by the reflector is obtained.
- the optical power of the pulse, and the fiber distance of the reflector to the first network device; the optical power of the transmitted test light pulse, and the reflection according to the optical power of the test light pulse reflected by the reflector Obtaining a ⁇ value factor of the second network device from the fiber distance of the first network device; determining a device type of the second network device according to the K value factor; wherein the second network device
- the K value factor corresponds to the device type of the second network device. It solves the problem of manually inputting the network topology such as the network device type, and realizes the automatic and accurate determination of the types of various network devices in the network, thereby automatically determining the topology of the entire network.
- the embodiment of the present invention further provides a specific method for detecting a network device type. As shown in FIG. 4, the method includes the following steps:
- the network includes: a detecting device and at least one reflector, the detecting device is disposed on a first network device, and the at least one reflector is matched with at least one second network device, wherein the detecting device is located in the The front end of the reflector.
- the detecting device may be configured on the first network device, where the detecting device is integrated on the first network device, or may be connected to the first network device, and configured to be in the first network.
- the reflector may be matched with the second network device, and the reflector may be connected to the second network device, and the reflector may be connected to the second network device.
- the branch fiber on which the second network device is located may also be integrated in the second network device.
- the first network device may be a network device such as an optical line terminal or a splitter; and the second network device may be a network device such as a splitter or an optical network unit or an optical network terminal.
- Inspection The measuring device can be an Opt ica l Time Doma in Ref lec t ion (OTDR). 402.
- the detecting device sends a test light pulse to the reflector, wherein each of the reflectors has a different reflectivity.
- the reflector may be a specific reflective proportional reflector (Spec i ied Ra t io Ref lector ,
- the reflection ratio of the reflector is related to the second network device, and may be preset, and the reflection ratios (i.e., reflectances) of the respective reflectors are different.
- the test light pulse is an optical pulse signal, which is a test use, that is, a light pulse for testing.
- the detecting device acquires optical power of a test light pulse reflected by the reflector, and a fiber distance of the reflector to the first network device.
- the fiber distance of the reflector to the first network device can be obtained by detecting by the detecting device.
- the detecting device calculates a loss of the optical fiber of the reflector to the first network device according to a fiber distance of the reflector to the first network device and a fiber loss per unit length.
- the loss of the optical fiber of the reflector to the first network device may be the product of the fiber loss per unit length and the fiber distance of the reflector to the first network device.
- the detecting device obtains, according to an optical power of the test light pulse reflected by the reflector, an optical power of the transmitted test light pulse, and a loss of the optical fiber of the reflector to the first network device.
- the K value factor of the second network device is the K value factor of the second network device.
- the foregoing calculation formula may be applicable to the case where the second network device is one. If the second network device is at least two, when calculating the K value factor, the loss of the second network device itself needs to be calculated, In the example of the actual application below Body description.
- the detecting device determines, according to the K value factor, a device type of the second network device, where the threshold value of the second network device corresponds to the device type of the second network device.
- Corresponding correspondence table corresponding to the threshold value of each second network device and the device type of each second network device is preset and stored on the detecting device, and the corresponding relationship table can be obtained by calculating the threshold value The factor uniquely determines the device type of the second network device.
- the detecting device determines, according to the determined device type of the second network device and a fiber distance of the reflector to the optical line terminal, Park structure.
- the device type, the number, and the segments of each network device connected to the optical line terminal may be further determined by determining the K value.
- the length of the fiber which in turn determines the topology of the entire network. For example, the type of the optical splitter and the type of the optical network unit connected to the optical line terminal, the number, and the length of each segment of the optical fiber, etc., the topology of the entire passive optical network P0N.
- the loss of each network branch in the network may also be determined, as follows:
- the detecting device calculates a loss of the optical fiber of the reflector to the optical line terminal according to a fiber distance of the reflector to the optical line terminal and a fiber loss per unit length;
- the detecting device monitors the network according to the acquired network topology. Specifically, the detecting device acquires a reference value of optical power corresponding to the reflector;
- the optical power of the test light pulse reflected by the reflector is The reference values of the optical powers corresponding to the reflectors are compared to accurately determine the location of the fault. For example: if there is one optical splitter in the network, the splitter is provided with a reflector, and the detecting device detects that the optical power returned by the reflector is reduced relative to the reference value, determining the location of the reflector The splitter has failed. Through the above detection process, the specific location of the fault in the network can be accurately determined.
- FIG. 5 is a schematic diagram of a network structure for detecting a network device type.
- the network is a passive optical network (PON), and the network includes an optical line terminal (OLT), and the detecting device is disposed in an optical distribution network (Optical Distribute Net, ODN).
- OLT optical line terminal
- ODN optical distribution network
- the optical distribution network is provided with at least two beamsplitters, respectively, at points a and b, each beam splitter matching a reflector, ie
- the reflectors of a specific reflection ratio are exemplified by SRR1 and SRR2 respectively; the user side devices respectively match the reflectors SRR3 and SRR4 at points c and d, respectively, at points c and d.
- the determining process is as follows:
- the K-value factor K a of the a-point splitter and the optical splitter of the power splitting ratio are stored in the detecting device in advance -
- the device model of the optical splitter can be uniquely determined according to the calculated Ka.
- the type is a 1:4 splitter.
- the determining process is as follows: the detecting device sends a test light pulse to the SRR4, and the power of the transmitted test light pulse is P; detecting the power of the test light pulse reflected by the SRR4 is Pd, the distance between the SRR4 reflector and the detecting device can be divided into several segments: the first segment is the fiber distance La from the point to the detecting device, The distance from the fiber of point a to point b is Lab, and the third segment is the fiber distance Lbd from point b to point d, which is: La +Lab+Lbd, where the distance of the Lab can be measured according to the SRR2 of the detecting device. The distance between the distance Lb and the La of the detecting device is different or, similarly, Lbd can also be calculated (the distance of the La can be obtained by the OTDR device set in the detecting device).
- the detecting device can obtain the fiber loss of each segment of the fiber from point d to point a: FLa, FLab, FLbd; and the self-loss SLb of the self-loss SLa and b-point splitter according to the point a of the spectrometer And the power of the test light pulse reflected by the reflectors SRR1 and SRR2 to the detecting device, respectively, by the K value factor calculation formula:
- the above is an example of practical application, and is not limited to the above formula for calculating the K value.
- the reflection ratios of the SRR1, SRR2, SRR3, and SRR4 are different, which is different from the spectrometer and b point of the point a.
- the device type, the c-point splitter, and the device type of the d-point splitter are different, which is different from the spectrometer and b point of the point a.
- the device type, the c-point splitter, and the device type of the d-point splitter Through the determination of the network device type of each node, the device type of each network device in the network, and the length of each segment of the optical fiber can be known, and then the topology of the entire network can be known, and thus each network can be easily obtained.
- the fiber loss of the network branch, this determination method can automatically and accurately acquire the topology of the network.
- the network can be further monitored to further change the topology of the network, and to accurately locate the network fault.
- the device detects the average of multiple optical powers of SRR1, SRR2, SRR3, and SRR4: P'a, P'b, P'c, and P'd are used as SRR1 and SRR2, respectively.
- SRR3, SRR4 benchmark value, timing or on-demand trigger test, and compared with the reference value, can detect the change of each segment of fiber:
- the optical power value at point a does not change from P, a, and the optical power value at point b is relative to P, b. If it is decreased, it is determined that the point b is faulty; if the difference of (Pa-Pb) is the same as the value of the reference (P, aP, b), but the optical power value of point a is decreased, it is determined that the central office device is the OLT to The fiber at point a has failed, and the fiber from point a to point b has no problem.
- the above judgment is described as an example.
- the specific judgment manner is not limited to the above example, and the network may be monitored according to the device type of each node device, the reflection ratio of the reflector, and the length and loss of each segment of the fiber.
- a method for determining a type of a network device is provided by an embodiment of the present invention, wherein a test light pulse is sent to the reflector by a detecting device, wherein each of the reflectors has a different reflectivity; and the test light reflected by the reflector is obtained.
- the optical power of the pulse, and the fiber distance of the reflector to the first network device; the optical power of the transmitted test light pulse, and the reflection according to the optical power of the test light pulse reflected by the reflector Obtaining a K-value factor of the second network device from the fiber distance of the first network device; determining a device type of the second network device according to the K-value factor; wherein the second network device The K value factor corresponds to the device type of the second network device.
- the problem of manually inputting the network topology such as the network device type is solved, and the types of various network devices in the network are automatically and accurately determined, thereby automatically determining the topology of the entire network; when the network fails, it is also possible Accurately determine the specific location of network failures and improve network construction efficiency.
- an embodiment of the present invention provides a structure of a device for detecting a type of a network device, where the device is disposed on a first network device, and at least one second network device is connected to the first network device.
- Each of the second network devices is matched with a reflector, where the first network device is located at a front end of the second network device, and the device includes:
- a first sending unit 602 configured to send a test light pulse to the reflector, wherein each of the reflectors has a different reflectivity
- a first acquiring unit 604 configured to acquire optical power of the test light pulse reflected by the reflector, and a fiber distance of the reflector to the first network device;
- a second obtaining unit 606 configured to: according to the optical power of the test light pulse reflected by the reflector, the optical power of the transmitted test light pulse, and the optical fiber of the reflector to the first network device a distance, obtaining a k value factor of the second network device;
- a first device type determining unit 608 configured to determine, according to the threshold value, a device type of the second network device, where a threshold value of the second network device and a device type of the second network device --correspond.
- the device further includes:
- the topology structure determining unit 610 is configured to determine a topology of the network according to the determined device type of the second network device and the fiber distance of the reflector to the optical line terminal.
- the device also includes:
- the storage unit 612 is configured to store a preset correspondence table corresponding to a threshold value of each second network device and a device type of each second network device.
- the first obtaining unit 604 is further configured to calculate a fiber loss of the reflector to the first network device according to a fiber distance of the reflector to the first network device, and a fiber loss per unit length;
- the second obtaining unit 606 is further configured to: according to the optical power of the test light pulse reflected by the reflector, the optical power of the transmitted test light pulse, and the optical fiber of the reflector to the first network device Loss, obtaining the threshold factor of the second network device.
- the device also includes:
- a network branch loss calculation unit 614 configured to calculate a loss of the optical fiber of the reflector to the optical line terminal according to a fiber distance of the reflector to the optical line terminal, and a fiber loss per unit length; Depleting the optical fibers of the reflector to the optical line terminal, the number of the second network devices, and the loss of each of the second network devices themselves, and calculating the loss of each network branch in the network.
- the device also includes:
- the monitoring unit 616 is configured to perform fault monitoring on the second network device in the network according to the acquired network topology.
- An apparatus for detecting a type of a network device is provided by an embodiment of the present invention, wherein a test light pulse is sent to the reflector by a detecting device, wherein each of the reflectors has a different reflectivity; Depicting the optical power of the test light pulse reflected by the reflector, and the fiber distance of the reflector to the first network device; according to the optical power of the test light pulse reflected by the reflector, the transmitted test light pulse Determining, by the optical power, the optical fiber distance of the reflector to the first network device, the ⁇ value factor of the second network device; determining the device type of the second network device according to the K value factor; The K value factor of the second network device corresponds to the device type of the second network device.
- the problem of manually inputting the network topology such as the network device type is solved, and the types of various network devices in the network are automatically and accurately determined, thereby automatically determining the topology of the entire network; when the network fails, it is also possible Accurately determine the specific location of network failures and improve network construction efficiency.
- An embodiment of the present invention provides a system for detecting a type of a network device.
- a schematic diagram of a specific system structure refer to FIG. 5 above.
- the system includes: the detecting device is disposed on the first network device, and the at least one reflector is matched with the at least one second network device, wherein the detecting device is located at a front end of the reflector;
- the detecting device is configured to send a test light pulse to the reflector; acquire optical power of the test light pulse reflected by the reflector, and a fiber distance of the reflector to the first network device; The optical power of the test light pulse reflected by the reflector, the optical power of the transmitted test light pulse, and the optical fiber distance of the reflector to the first network device, to obtain a K value factor of the second network device; Determining, according to the K value factor, a device type of the second network device, where a K value factor of the second network device is in one-to-one correspondence with a device type of the second network device; Returning the optical power of the reflected test light pulses, wherein each of the reflectors has a different reflectivity.
- the detecting device when the first network device is an optical line terminal, the detecting device is further configured to: according to the determined device type of the second network device, and the reflector to the optical line terminal The fiber distance determines the topology of the network.
- the detecting device is further configured to store a correspondence table corresponding to a K value factor of each second network device that is preset and a device type of each second network device.
- the first network device may also be a point splitter
- the second network device may also be a b point splitter
- the detecting device is disposed on the optical splitter at point a.
- a reflector is disposed on the b-point splitter.
- the device type of the b-point splitter can be accurately determined by the detecting means of the point a, according to the above method for determining the b-point splitter.
- An embodiment of the present invention further provides a system for detecting a type of a network device, the system comprising a detecting device and a reflector, wherein the detecting device transmits a test light pulse to the reflector, wherein each of the reflectors has a different reflection Obtaining an optical power of the test light pulse reflected by the reflector, and a fiber distance of the reflector to the first network device; according to an optical power of the test light pulse reflected by the reflector, the transmitting Detecting the optical power of the optical pulse, and the optical fiber distance of the reflector to the first network device, acquiring a K value factor of the second network device; determining, according to the K value factor, the second network device The device type; wherein, the K value factor of the second network device corresponds to the device type of the second network device.
- the problem of manually inputting the network topology such as the network device type is solved, and the types of various network devices in the network are automatically and accurately determined, thereby automatically determining the topology of the entire network; when the network fails, it is also possible Accurately determine the specific location of network failures and improve network construction efficiency.
- the present invention can be implemented by means of software plus necessary general hardware, and of course, by hardware, but in many cases, the former is a better implementation. .
- the technical solution of the present invention which is essential or contributes to the prior art, may be embodied in the form of a software product stored in a readable storage medium, such as a floppy disk of a computer.
- a hard disk or optical disk or the like includes instructions for causing a computer device (which may be a personal computer, a server, or a network device, etc.) to perform the methods described in various embodiments of the present invention.
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Abstract
本发明实施例公开了一种确定网络设备类型的方法。该方法包括:通过检测装置发送测试光脉冲给反射器;根据所述反射器反射的测试光脉冲的光功率,所述发送的测试光脉冲的光功率,以及所述反射器到第一网络设备的光纤距离,获取第二网络设备的K值因子;根据所述K值因子,确定所述第二网络设备的设备类型。本发明解决了手动输入网络设备类型等网络拓扑结构的问题,实现了自动而准确地确定网络中各种网络设备的类型,进而自动确定整个网络的拓扑结构;当所述网络出现故障,还可以精确确定网络的故障发生的具***置,提高了网络的建设效率。
Description
检测网络设备类型的方法、 装置和***
技术领域
本发明涉及通信***, 尤其涉及一种检测网络设备类型的方法、 装置和 ***。 背景技术 随着网络业务的不断发展, 传统的铜线宽带接入***已经不能满足现有 网络业务对带宽的需要, PON ( Passive Optical Network, 无源光网络)技术 具备节约光纤资源、 成本低、 带宽高、 多业务接入等优点, 已经成为未来网 络技术的发展方向。
如图 1 所示, 无源光网络包括局端业务汇聚设备 OLT ( Optical Line Terminal, 光线路终端), 用户终端设备 ONU ( Optical Network Unit,光网络单 元)。OLT的每个端口下面通过分光器带有多个 ONU, PON是一个 P2MP( Point Multiple Point, 点对多点主站 )的网络。 OLT和 ONU之间的通讯釆用时分复 用的方式实现, 每个 ONU在 OLT的授权时间窗口内和 OLT进行通讯。
由于 PON每个端口所覆盖的用户较多, 范围较广, 而且所涉及的用户业 务的业务量较大, 因此对 PON网络的运营维护非常重要。
目前, 对于 PON的运营维护方案如图 2所示, 所述网络包括: OLT、 光开 关
单元( Optical Switch Unit, OSU )、 光时域反射器(光时域反射器 Optical Time Domain Reflection, OTDR ) 以及手持式光功率检测(Optical Power
Measurement, OPM)模块。 该网络的应用如下: 在网络开通验收时, 主要是 通过手持 0PM逐段测试每段路径的损耗是否满足设计要求; 业务开通后, 通 过设备或终端告警发现业务故障, 然后通过 0TDR定位故障的具***置。
上述运营维护方案中, 网络拓朴结构中的各种网络设备的类型, 数量等都 足
需要人工手动输入, 而且由于 P2MP 网络的拓朴结构较复杂, 所以人工
手动输入不仅效率低, 周期长, 容易出错, 而且不能及时检测并发现拓朴的 变化情况。
发明内容
本发明的实施例提供一种检测网络设备类型的方法、 装置和***, 实现 了自动而准确地确定网络中各种网络设备的类型, 进而自动确定整个网络的 拓朴结构。 为达到上述目的, 本发明的实施例釆用如下技术方案:
一种检测网络设备类型的方法, 所述网络包括: 检测装置和至少一个反 射器, 所述检测装置设置在第一网络设备上, 所述至少一个反射器与至少一 个第二网络设备相匹配, 其中, 所述检测装置位于所述反射器的前端, 所述 方法包括:
所述检测装置发送测试光脉冲给所述反射器, 其中所述每个反射器具有 不同的反射率;
所述检测装置获取所述反射器反射的测试光脉冲的光功率, 以及所述反 射器到所述第一网络设备的光纤距离;
所述检测装置根据所述反射器反射的测试光脉冲的光功率, 所述发送的 测试光脉冲的光功率, 以及所述反射器到所述第一网络设备的光纤距离, 获 取所述第二网络设备的 κ值因子;
所述检测装置根据所述 K值因子, 确定所述第二网络设备的设备类型; 其中, 所述第二网络设备的 K值因子与所述第二网络设备的设备类型——对 应。
一种检测网络拓朴结构的装置, 所述装置设置在第一网络设备上, 至少 一个第二网络设备与所述第一网络设备相连 , 在每个所述第二网络设备上匹 配一个反射器, 其中, 所述第一网络设备位于所述第二网络设备的前端, 所 述装置包括:
第一发送单元, 用于发送测试光脉冲给所述反射器, 其中所述每个反射 器具有不同的反射率;
第一获取单元, 用于获取所述反射器反射的测试光脉冲的光功率, 以及
所述反射器到所述第一网络设备的光纤距离;
第二获取单元, 用于根据所述反射器反射的测试光脉冲的光功率, 所述 发送的测试光脉冲的光功率, 以及所述反射器到所述第一网络设备的光纤距 离, 获取所述第二网络设备的 κ值因子;
第一设备类型确定单元, 用于根据所述 κ值因子, 确定所述第二网络设 备的设备类型; 其中, 所述第二网络设备的 K值因子与所述第二网络设备的 设备类型一一对应。
一种检测网络设备类型的***, 所述***包括: 所述检测装置设置在第 一网络设备上, 所述至少一个反射器与至少一个第二网络设备相匹配, 其中, 所述检测装置位于所述反射器的前端; 其中,
所述检测装置, 用于发送测试光脉冲给所述反射器; 获取所述反射器反 射的测试光脉冲的光功率, 以及所述反射器到所述第一网络设备的光纤距离; 根据所述反射器反射的测试光脉冲的光功率, 所述发送的测试光脉冲的光功 率, 以及所述反射器到所述第一网络设备的光纤距离, 获取所述第二网络设 备的 K值因子; 根据所述 K值因子, 确定所述第二网络设备的设备类型; 其 中, 所述第二网络设备的 K值因子与所述第二网络设备的设备类型一一对应; 所述反射器, 用于返回所述反射的测试光脉冲的光功率, 其中所述每个 反射器具有不同的反射率。
本发明实施例提供的一种检测网络设备类型的方法、 装置和***, 通过 检测装置发送测试光脉冲给所述反射器, 其中所述每个反射器具有不同的反 射率; 获取所述反射器反射的测试光脉冲的光功率, 以及所述反射器到所述 第一网络设备的光纤距离; 根据所述反射器反射的测试光脉冲的光功率, 所 述发送的测试光脉冲的光功率, 以及所述反射器到所述第一网络设备的光纤 距离, 获取所述第二网络设备的 κ值因子; 根据所述 K值因子, 确定所述第 二网络设备的设备类型; 其中, 所述第二网络设备的 K值因子与所述第二网 络设备的设备类型——对应。 解决了手动输入网络设备类型等网络拓朴结构 的问题, 实现了自动而准确地确定网络中各种网络设备的类型, 进而自动确
定整个网络的拓朴结构。
附图说明 为了更清楚地说明本发明实施例或现有技术中的技术方案, 下面将对实 施例或现有技术描述中所需要使用的附图作简单地介绍, 显而易见地, 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他的附图。
图 1为现有技术中无源光网络的结构示意图;
图 3为本发明实施例提供的检测网络设备类型的方法流程图;
图 4为本发明实施例提供的检测网络设备类型的具体方法流程图; 图 5为本发明实施例提供的检测网络设备类型的组网结构示意图。
图 6为本发明实施例提供的检测网络设备类型的装置结构示意图。
具体实施方式 下面将结合本发明实施例中的附图, 对本发明实施例中的技术方案进行 清楚、 完整地描述, 显然, 所描述的实施例仅仅是本发明一部分实施例, 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作 出创造性劳动前提下所获得的所有其他实施例, 都属于本发明保护的范围。
本发明实施例提供了一种检测网络设备类型的方法, 如图 3 所示, 包括 以下步骤:
所述网络包括: 检测装置和至少一个反射器, 所述检测装置设置在第一 网络设备上, 所述至少一个反射器与至少一个第二网络设备相匹配, 其中, 所述检测装置位于所述反射器的前端。
302、 所述检测装置发送测试光脉冲给所述反射器, 其中所述每个反射器 具有不同的反射率。
所述测试光脉冲为测试用的光脉冲信号。
304、 所述检测装置获取所述反射器反射的测试光脉冲的光功率, 以及所 述反射器到所述第一网络设备的光纤距离。
306、 所述检测装置根据所述反射器反射的测试光脉冲的光功率, 所述发 送的测试光脉冲的光功率, 以及所述反射器到所述第一网络设备的光纤距离, 获取所述第二网络设备的 K值因子。
所述获取所述第二网络设备的 K值因子具体包括:
所述检测装置根据所述反射器到所述第一网络设备的光纤距离, 以及单 位长度光纤损耗, 计算所述反射器至所述第一网络设备的光纤的损耗;
所述检测装置根据所述反射器反射的测试光脉冲的光功率, 所述发送的 测试光脉冲的光功率, 以及所述反射器至所述第一网络设备的光纤的损耗, 获取所述第二网络设备的 K值因子。
308、 所述检测装置根据所述 K值因子, 确定所述第二网络设备的设备类 型; 其中, 所述第二网络设备的 K值因子与所述第二网络设备的设备类型一 一对应。
在所述检测装置上预先设置每个第二网络设备的 K值因子与每个第二网 络设备的设备类型——对应的对应关系表。
进一步地, 当所述第一网络设备为光线路终端时, 所述方法还包括: 根据所述确定的第二网络设备的设备类型以及所述反射器到所述光线路 终端的光纤距离, 确定所述网络的拓朴结构。
进一步地, 所述检测装置还可以确定所述网络中各个网络分支的损耗, 具体方法: ¾口下:
所述检测装置根据所述反射器到所述光线路终端的光纤距离, 以及单位 长度光纤损耗, 计算所述反射器至所述光线路终端的光纤的损耗;
根据每个所述反射器到所述光线路终端的光纤的损耗, 所述第二网络设 备的数量, 以及每个所述第二网络设备自身的损耗, 计算所述网络中各个网 络分支的损耗。
进一步地, 所述方法还包括:
根据所述获取的网络拓朴结构, 对所述网络中的第二网络设备进行故障 监测。
具体为: 所述检测装置获取所述反射器对应的光功率基准值; 根据所述反射器反射的测试光脉冲的光功率和所述反射器对应的光功率 的基准值, 检测所述网络是否发生故障;
若所述网络发生故障, 确定故障所在的位置。
本发明实施例提供的一种检测网络设备类型的方法, 通过检测装置发送 测试光脉冲给所述反射器, 其中所述每个反射器具有不同的反射率; 获取所 述反射器反射的测试光脉冲的光功率, 以及所述反射器到所述第一网络设备 的光纤距离; 根据所述反射器反射的测试光脉冲的光功率, 所述发送的测试 光脉冲的光功率, 以及所述反射器到所述第一网络设备的光纤距离, 获取所 述第二网络设备的 κ值因子; 根据所述 K值因子, 确定所述第二网络设备的 设备类型; 其中, 所述第二网络设备的 K值因子与所述第二网络设备的设备 类型——对应。 解决了手动输入网络设备类型等网络拓朴结构的问题, 实现 了自动而准确地确定网络中各种网络设备的类型, 进而自动确定整个网络的 拓朴结构。
本发明实施例还提供了一种检测网络设备类型的具体方法, 如图 4所示, 包括以下步骤:
所述网络包括: 检测装置和至少一个反射器, 所述检测装置设置在第一 网络设备上, 所述至少一个反射器与至少一个第二网络设备相匹配, 其中, 所述检测装置位于所述反射器的前端。
其中所述检测装置设置在所述第一网络设备上具体可以为: 所述检测装 置集成在第一网络设备上, 也可以与所述第一网络设备相连接, 设置在与所 述第一网络设备所在的光纤上。 所述反射器与所述第二网络设备相匹配具体 可以为: 在每个所述第二网络设备上分别设置一个反射器, 所述反射器可以 与所述第二网络设备相连接, 设置在所述第二网络设备所在的分支光纤上, 也可以集成在所述第二网络设备中。
所述第一网络设备可以为光线路终端或者分光器等网络设备; 所述第二 网络设备可以为分光器或者光网络单元或者光网络终端等网络设备。 所述检
测装置可以为光时 i或反射器(Opt ica l Time Doma in Ref lec t ion, OTDR )。 402、 所述检测装置发送测试光脉冲给所述反射器, 其中所述每个反射器 具有不同的反射率。
所述反射器可以为特定反射比例反射器(Spec i f ied Ra t io Ref lector ,
SRR ), 即具有特定反射比例的反射器, 该反射器的反射比例与所述第二网络 设备相关, 可以预先设定, 且所述各个反射器的反射比例 (即反射率)不同。
所述测试光脉冲为一种光脉冲信号, 该光脉冲信号为测试用途, 即测试 用的光脉冲。
404、 所述检测装置获取所述反射器反射的测试光脉冲的光功率, 以及所 述反射器到所述第一网络设备的光纤距离。
其中, 所述反射器到所述第一网络设备的光纤距离可以通过所述检测装 置检测获得。
406、 所述检测装置根据所述反射器到所述第一网络设备的光纤距离以及 单位长度光纤损耗, 计算所述反射器至所述第一网络设备的光纤的损耗。
其中所述反射器至所述第一网络设备的光纤的损耗可以单位长度光纤损 耗与所述反射器到所述第一网络设备的光纤距离的乘积。
408、 所述检测装置根据所述反射器反射的测试光脉冲的光功率, 所述发 送的测试光脉冲的光功率, 以及所述反射器至所述第一网络设备的光纤的损 耗, 获取所述第二网络设备的 K值因子。
具体的 K值因子为反射光返回的测试光脉冲的功率相对于检测装置发射 的测试光脉冲的功率的比值, 具体可以: K = Pj/ ( P0-2*FL! ), 其中, 所述 Pi 为检测装置检测到的所述反射器返回的测试光脉冲的功率; PQ为所述检测装 置发送给所述反射器的测试光脉冲的功率; 为所述反射器到第一网络设备 的光纤损耗(该光纤损耗也可以为反射器到检测装置的损耗, 因为所述检测 装置与第一网络设备在同一侧)。 上述计算公式可以适用于所述第二网络设备 为一个时的情况, 若所述第二网络设备为至少两个, 在计算 K值因子时还需 要计算该第二网络设备自身的损耗, 具体的在下面的实际应用的实例中会具
体说明。
410、 所述检测装置根据所述 K值因子, 确定所述第二网络设备的设备类 型; 其中, 所述第二网络设备的 Κ值因子与所述第二网络设备的设备类型一 一对应。
在所述检测装置上预先设置并存储了每个第二网络设备的 Κ值因子与每 个第二网络设备的设备类型——对应的对应关系表, 该对应关系表可以通过 计算获得的 Κ值因子唯一确定该第二网络设备的设备类型。
412、 当所述第一网络设备为光线路终端时, 检测装置根据所述确定的第 二网络设备的设备类型以及所述反射器到所述光线路终端的光纤距离, 确定 所述网络的拓朴结构。
当所述检测装置设置在光线路终端等局端设备或者中心 CO设备时, 可以 通过上述 K值的确定, 进一步确定与所述光线路终端相连接的各个网络设备 的设备类型, 数量以及各段光纤的长度, 进而确定整个网络的拓朴结构。 例 如与所述光线路终端相连接的各个分光器以及光网络单元的类型, 数量以及 各段光纤的长度等整个无源光网络 P0N的拓朴结构。
进一步地, 在确定所述网络的拓朴结构之后, 还可以确定所述网络中各 个网络分支的损耗, 具体方法如下:
所述检测装置根据所述反射器到所述光线路终端的光纤距离, 以及单位 长度光纤损耗, 计算所述反射器至所述光线路终端的光纤的损耗;
根据每个所述反射器到所述光线路终端的光纤的损耗, 所述第二网络设 备的数量, 以及每个所述第二网络设备自身的损耗, 计算所述网络中各个网 络分支的损耗。
414、 检测装置根据所述获取的网络拓朴结构, 对所述网络进行监测。 具体为: 所述检测装置获取所述反射器对应的光功率基准值;
根据所述反射器反射的测试光脉冲的光功率和所述反射器对应的光功率 的基准值, 检测所述网络是否发生故障;
若所述网络发生故障, 则根据所述反射器反射的测试光脉冲的光功率和
所述反射器对应的光功率的基准值进行比较, 精确确定故障所在的位置。 例 如: 若网络中有 1 个分光器, 所述一个分光器上设置有反射器, 所述检测装 置检测到所述反射器返回的光功率相对于基准值减小, 则确定该反射器所在 的分光器出现故障。 可以通过上述的检测过程, 精确的确定网络中发生故障 的具***置。
下面通过实例进行说明:
如图 5所示, 图 5为一种检测网络设备类型的组网结构示意图。
所述网络为一种无源光网络(Passive Optical Network, PON), 所述网 络中包括光线路终端 (Optical Line Terminal, OLT), 与所述检测装置设置 在光分配网 (Optical Distribute Net, ODN) 的主干光纤上(这里的 OLT相 当于第一网络设备); 所述光分配网中设置至少两个分光器, 分别在 a点和 b 点上, 每个分光器匹配一个反射器, 即以特定反射比例的反射器为例, 分别 为 SRR1和 SRR2; 所述用户侧设备分别在 c点和 d点, 在 c点和 d点上也分别 匹配反射器 SRR3和 SRR4。
若检测装置需要确定 a点的分光器的设备类型, 所述确定过程如下: 预先在检测装置中存储有所述 a点分光器的 K值因子 Ka与该功率分支比 的分光器的——对应关系,可以根据计算获得的 Ka唯一确定该分光器的设备 型号。
所述检测装置发送测试光脉冲给所述 SRR1,发送的测试光脉冲的功率为 P;检测所述 SRR1反射回来的测试光脉冲的功率为 Pa, 所述反射器与检测装置 之间的距离为 La, 根据单位长度光纤损耗, 获得所述反射器与检测装置之间 的光纤损耗 FLa, 即 FLa=单位长度光纤损耗 *所述反射器与检测装置之间的距 离为 La; 则所述 K值因子为: K= Pa/ (P-2*FLa),根据所述计算获取的 K值 因子,查询预先存储在检测设备上的 K值因子与设备类型的对应关系表, 获知 该分光器的设备类型是 1: 4的分光器。
若检测装置需要确定 d点的分光器的设备类型, 确定过程如下: 所述检测装置发送测试光脉冲给所述 SRR4,发送的测试光脉冲的功率为
P;检测所述 SRR4反射回来的测试光脉冲的功率为 Pd, 所述 SRR4反射器与检 测装置之间的距离可以分为几段: 第一段为 a点到检测装置的光纤距离 La, 第二段 a点到 b点的光纤的距离 Lab, 第三段为 b点到 d点的光纤距离 Lbd, 即为: La +Lab+Lbd, 其中所述 Lab的距离可以根据检测装置测得的 SRR2到 检测装置的距离 Lb与 La的距离差或者, 同理, Lbd也可以计算获得 (所述 La的距离可以通过检测装置中设置的 OTDR设备检测获得)。
根据单位长度光纤损耗,检测装置可以获得 d点到 a点上各段光纤的光纤 损耗: FLa、 FLab、 FLbd; 以及根据所述 a点分光器的自身损耗 SLa和 b点 分光器的自身损耗 SLb, 以及反射器 SRR1和 SRR2分别反射给检测装置的测 试光脉冲的功率, 通过 K值因子计算公式:
K = Pd/【P-2* ( FLa+SLa+Flab+SLb+FLbd+Pa+Pb )】
计算出 d点分光器的 K值因子, 根据存储的 Κ值因子与所述 d点分光器的设 备类型的对应关系, 确定所述 d点分光器的设备类型为 1 : 32的分光器。
上述是实际应用的一个例子, 并不限定与上述的 K值计算因子的公式, 所述 SRR1、 SRR2、 SRR3以及 SRR4的反射比例均不相同 , 这与所述 a点的 分光器、 b点分光器、 c点分光器以及 d点分光器的设备类型有关。 通过各个 节点的网络设备类型的确定, 就可以知道该网络中各个网络设备的设备类型, 以及各段光纤的长度, 进而可以知道整个网络的拓朴结构, 进而也可以很容 易获得网络中每个网络分支的光纤损耗情况, 这种确定方法可以准确、 快速 地自动获取网络的拓朴结构。
根据网络的拓朴结构, 进一步还可以对该网络进行进一步监测网络拓朴 的变化, 以及对所述网络故障进行精确定位。 例如, 检测装置在业务稳定正 常运行时, 分别测试得到 SRR1、 SRR2、 SRR3、 SRR4的多次光功率的平均 值: P'a、 P'b、 P'c、 P'd分别作为 SRR1、 SRR2、 SRR3、 SRR4的基准值, 定 时或按需触发测试, 并与所述基准值进行对比, 可以检测各段光纤的变化情 况:
如果 a点的光功率值与 P,a相比没有变化, 而 b点的光功率值相对 P,b
减小, 则确定知道 b点出现故障; 如果 (Pa-Pb)的差值与基准 (P,a-P,b)值相同, 但是 a点的光功率值减小, 则确定局端设备即 OLT到 a点光纤出现故障, a 点到 b点的这段光纤没有问题。
上述判断为一个实例进行说明, 具体判断方式不局限与上述例子, 还可 以根据各节点设备的设备类型、 反射器的反射比率、 以及各段光纤长度以及 损耗等对所述网络进行监测等。
本发明实施例提供的一种确定网络设备类型的方法, 通过检测装置发送 测试光脉冲给所述反射器, 其中所述每个反射器具有不同的反射率; 获取所 述反射器反射的测试光脉冲的光功率, 以及所述反射器到所述第一网络设备 的光纤距离; 根据所述反射器反射的测试光脉冲的光功率, 所述发送的测试 光脉冲的光功率, 以及所述反射器到所述第一网络设备的光纤距离, 获取所 述第二网络设备的 K值因子; 根据所述 K值因子, 确定所述第二网络设备的 设备类型; 其中, 所述第二网络设备的 K值因子与所述第二网络设备的设备 类型——对应。 解决了手动输入网络设备类型等网络拓朴结构的问题, 实现 了自动而准确地确定网络中各种网络设备的类型, 进而自动确定整个网络的 拓朴结构; 当所述网络出现故障, 还可以精确确定网络的故障发生的具*** 置, 提高网络的建设效率。
如图 6所示, 本发明实施例提供了一种检测网络设备类型的装置结构示 意图, 所述装置设置在第一网络设备上, 至少一个第二网络设备与所述第一 网络设备相连, 在每个所述第二网络设备上匹配一个反射器, 其中, 所述第 一网络设备位于所述第二网络设备的前端, 所述装置包括:
第一发送单元 602 , 用于发送测试光脉冲给所述反射器, 其中所述每个反 射器具有不同的反射率;
第一获取单元 604 , 用于获取所述反射器反射的测试光脉冲的光功率, 以 及所述反射器到所述第一网络设备的光纤距离;
第二获取单元 606 , 用于根据所述反射器反射的测试光脉冲的光功率, 所 述发送的测试光脉冲的光功率, 以及所述反射器到所述第一网络设备的光纤
距离, 获取所述第二网络设备的 κ值因子;
第一设备类型确定单元 608 , 用于根据所述 Κ值因子, 确定所述第二网络 设备的设备类型; 其中, 所述第二网络设备的 Κ值因子与所述第二网络设备 的设备类型——对应。
当所述第一网络设备为光线路终端时, 所述装置还包括:
拓朴结构确定单元 610,用于根据所述确定的第二网络设备的设备类型以 及所述反射器到所述光线路终端的光纤距离, 确定所述网络的拓朴结构。
所述装置还包括:
存储单元 612 ,用来存储预先设置的每个第二网络设备的 Κ值因子与每个 第二网络设备的设备类型——对应的对应关系表。
所述第一获取单元 604还用于根据所述反射器到所述第一网络设备的光 纤距离, 以及单位长度光纤损耗, 计算所述反射器至所述第一网络设备的光 纤的损耗;
所述第二获取单元 606 ,还用于根据所述反射器反射的测试光脉冲的光功 率, 所述发送的测试光脉冲的光功率, 以及所述反射器至所述第一网络设备 的光纤的损耗, 获取所述第二网络设备的 Κ值因子。
所述装置还包括:
网络分支损耗计算单元 614 ,用于根据所述反射器到所述光线路终端的光 纤距离, 以及单位长度光纤损耗, 计算所述反射器至所述光线路终端的光纤 的损耗; 根据每个所述反射器到所述光线路终端的光纤的损耗, 所述第二网 络设备的数量, 以及每个所述第二网络设备自身的损耗, 计算所述网络中各 个网络分支的损耗。
所述装置还包括:
监测单元 616 , 用于根据所述获取的网络拓朴结构, 对所述网络中的第二 网络设备进行故障监测。
本发明实施例提供的一种检测网络设备类型的装置, 通过检测装置发送 测试光脉冲给所述反射器, 其中所述每个反射器具有不同的反射率; 获取所
述反射器反射的测试光脉冲的光功率, 以及所述反射器到所述第一网络设备 的光纤距离; 根据所述反射器反射的测试光脉冲的光功率, 所述发送的测试 光脉冲的光功率, 以及所述反射器到所述第一网络设备的光纤距离, 获取所 述第二网络设备的 κ值因子; 根据所述 K值因子, 确定所述第二网络设备的 设备类型; 其中, 所述第二网络设备的 K值因子与所述第二网络设备的设备 类型——对应。 解决了手动输入网络设备类型等网络拓朴结构的问题, 实现 了自动而准确地确定网络中各种网络设备的类型, 进而自动确定整个网络的 拓朴结构; 当所述网络出现故障, 还可以精确确定网络的故障发生的具*** 置, 提高网络的建设效率。
本发明实施例提供了一种检测网络设备类型的***, 具体***结构示意 图可以参见上述图 5所示。
所述***包括: 所述检测装置设置在第一网络设备上, 所述至少一个反 射器与至少一个第二网络设备相匹配, 其中, 所述检测装置位于所述反射器 的前端; 其中,
所述检测装置, 用于发送测试光脉冲给所述反射器; 获取所述反射器反 射的测试光脉冲的光功率, 以及所述反射器到所述第一网络设备的光纤距离; 根据所述反射器反射的测试光脉冲的光功率, 所述发送的测试光脉冲的光功 率, 以及所述反射器到所述第一网络设备的光纤距离, 获取所述第二网络设 备的 K值因子; 根据所述 K值因子, 确定所述第二网络设备的设备类型; 其 中, 所述第二网络设备的 K值因子与所述第二网络设备的设备类型一一对应; 所述反射器, 用于返回所述反射的测试光脉冲的光功率, 其中所述每个 反射器具有不同的反射率。
如图 5 所示, 当所述第一网络设备为光线路终端时, 所述检测装置还用 于根据所述确定的第二网络设备的设备类型以及所述反射器到所述光线路终 端的光纤距离, 确定所述网络的拓朴结构。
所述检测装置还用于存储预先设置的每个第二网络设备的 K值因子与每 个第二网络设备的设备类型——对应的对应关系表。
例如, 如图 5所示, 所述第一网络设备也可以为 a点的分光器, 所述第 二网络设备也可以为 b点分光器, 则此时在 a点的分光器上设置检测装置, 在 b点分光器上设置反射器, 此时通过 a点的检测装置, 根据上述的确定 b 点分光器的方法, 可以精确确定所述 b点分光器的设备类型。
本发明实施例还提供的一种检测网络设备类型的***, 所述***包括检 测装置和反射器, 通过检测装置发送测试光脉冲给所述反射器, 其中所述每 个反射器具有不同的反射率; 获取所述反射器反射的测试光脉冲的光功率, 以及所述反射器到所述第一网络设备的光纤距离; 根据所述反射器反射的测 试光脉冲的光功率, 所述发送的测试光脉冲的光功率, 以及所述反射器到所 述第一网络设备的光纤距离, 获取所述第二网络设备的 K值因子; 根据所述 K 值因子, 确定所述第二网络设备的设备类型; 其中, 所述第二网络设备的 K 值因子与所述第二网络设备的设备类型——对应。 解决了手动输入网络设备 类型等网络拓朴结构的问题, 实现了自动而准确地确定网络中各种网络设备 的类型, 进而自动确定整个网络的拓朴结构; 当所述网络出现故障, 还可以 精确确定网络的故障发生的具***置, 提高网络的建设效率。
通过以上的实施方式的描述, 所属领域的技术人员可以清楚地了解到本 发明可借助软件加必需的通用硬件的方式来实现, 当然也可以通过硬件, 但 很多情况下前者是更佳的实施方式。 基于这样的理解, 本发明的技术方案本 质上或者说对现有技术做出贡献的部分可以以软件产品的形式体现出来, 该 计算机软件产品存储在可读取的存储介质中, 如计算机的软盘, 硬盘或光盘 等, 包括若干指令用以使得一台计算机设备(可以是个人计算机, 服务器, 或者网络设备等)执行本发明各个实施例所述的方法。
以上所述, 仅为本发明的具体实施方式, 但本发明的保护范围并不局限 于此, 任何熟悉本技术领域的技术人员在本发明揭露的技术范围内, 可轻易 想到变化或替换, 都应涵盖在本发明的保护范围之内。 因此, 本发明的保护 范围应所述以权利要求的保护范围为准。
Claims
1、 一种检测网络设备类型的方法, 其特征在于, 所述网络包括: 检测装置 和至少一个反射器, 所述检测装置设置在第一网络设备上, 所述至少一个反射 器与至少一个第二网络设备相匹配, 其中, 所述检测装置位于所述反射器的前 端, 所述方法包括:
所述检测装置发送测试光脉冲给所述反射器, 其中所述每个反射器具有不 同的反射率;
所述检测装置获取所述反射器反射的测试光脉冲的光功率, 以及所述反射 器到所述第一网络设备的光纤距离;
所述检测装置根据所述反射器反射的测试光脉冲的光功率, 所述发送的测 试光脉冲的光功率, 以及所述反射器到所述第一网络设备的光纤距离, 获取所 述第二网络设备的 K值因子;
所述检测装置根据所述 K值因子, 确定所述第二网络设备的设备类型; 其 中, 所述第二网络设备的 K值因子与所述第二网络设备的设备类型一一对应。
2、 根据权利要求 1所述的检测网络中网络设备类型的方法, 其特征在于, 当所述第一网络设备为光线路终端时, 所述方法还包括:
根据所述确定的第二网络设备的设备类型以及所述反射器到所述光线路终 端的光纤距离, 确定所述网络的拓朴结构。
3、根据权利要求 1或者权利要求 2所述的检测网络中网络设备类型的方法, 其特征在于, 在所述检测装置上预先设置每个第二网络设备的 K值因子与每个 第二网络设备的设备类型——对应的对应关系表。
4、 根据权利要求 1或者 2所述的检测网络中网络设备类型的方法, 其特征 在于, 所述获取所述第二网络设备的 K值因子包括:
所述检测装置根据所述反射器到所述第一网络设备的光纤距离, 以及单位 长度光纤损耗, 计算所述反射器至所述第一网络设备的光纤的损耗;
所述检测装置根据所述反射器反射的测试光脉冲的光功率, 所述发送的测 试光脉冲的光功率, 以及所述反射器至所述第一网络设备的光纤的损耗, 获取 所述第二网络设备的 K值因子。
5、 根据权利要求 2所述的检测网络中网络设备类型的方法, 其特征在于, 所述方法还包括:
所述检测装置根据所述反射器到所述光线路终端的光纤距离, 以及单位长 度光纤损耗, 计算所述反射器至所述光线路终端的光纤的损耗;
根据每个所述反射器到所述光线路终端的光纤的损耗, 所述第二网络设备 的数量, 以及每个所述第二网络设备自身的损耗, 计算所述网络中各个网络分 支的损耗。
6、 根据权利要求 2所述的检测网络中网络设备类型的方法, 其特征在于, 所述方法还包括:
根据所述获取的网络拓朴结构, 对所述网络中的第二网络设备进行故障监 测。
7、 根据权利要求 6所述的检测网络中网络设备类型的方法, 其特征在于, 所述根据所述获取的网络拓朴结构, 对所述网络进行故障监测包括:
所述检测装置获取所述反射器对应的光功率基准值;
根据所述反射器反射的测试光脉冲的光功率和所述反射器对应的光功率的 基准值, 检测所述网络是否发生故障;
若所述网络发生故障, 确定故障所在的位置。
8、 一种检测网络设备类型的装置, 其特征在于, 所述装置设置在第一网络 设备上, 至少一个第二网络设备与所述第一网络设备相连, 在每个所述第二网 络设备上匹配一个反射器, 其中, 所述第一网络设备位于所述第二网络设备的 前端, 所述装置包括:
第一发送单元, 用于发送测试光脉冲给所述反射器, 其中所述每个反射器 具有不同的反射率;
第一获取单元, 用于获取所述反射器反射的测试光脉冲的光功率, 以及所 述反射器到所述第一网络设备的光纤距离;
第二获取单元, 用于根据所述反射器反射的测试光脉冲的光功率, 所述发 送的测试光脉冲的光功率, 以及所述反射器到所述第一网络设备的光纤距离, 获取所述第二网络设备的 κ值因子;
第一设备类型确定单元, 用于根据所述 κ值因子, 确定所述第二网络设备 的设备类型; 其中, 所述第二网络设备的 K值因子与所述第二网络设备的设备 类型——对应。
9、 根据权利要求 8所述的装置, 其特征在于, 当所述第一网络设备为光线 路终端时, 所述装置还包括:
拓朴结构确定单元, 用于根据所述确定的第二网络设备的设备类型以及所 述反射器到所述光线路终端的光纤距离, 确定所述网络的拓朴结构。
1 0、 根据权利要求 8或者 9所述的装置, 其特征在于, 所述装置还包括: 存储单元, 用来存储预先设置的每个第二网络设备的 K值因子与每个第二 网络设备的设备类型——对应的对应关系表。
1 1、 根据权利要求 8或者 9所述的装置, 其特征在于, 所述第一获取单元 还用于根据所述反射器到所述第一网络设备的光纤距离, 以及单位长度光纤损 耗, 计算所述反射器至所述第一网络设备的光纤的损耗;
所述第二获取单元, 还用于根据所述反射器反射的测试光脉冲的光功率, 所述发送的测试光脉冲的光功率, 以及所述反射器至所述第一网络设备的光纤 的损耗, 获取所述第二网络设备的 K值因子。
1 2、 根据权利要求 9所述的装置, 其特征在于, 所述装置还包括: 网络分支损耗计算单元, 用于根据所述反射器到所述光线路终端的光纤距 离, 以及单位长度光纤损耗, 计算所述反射器至所述光线路终端的光纤的损耗; 根据每个所述反射器到所述光线路终端的光纤的损耗, 所述第二网络设备的数 量, 以及每个所述第二网络设备自身的损耗, 计算所述网络中各个网络分支的 损耗。
1 3、 根据权利要求 9所述的装置, 其特征在于, 所述装置还包括: 监测单元, 用于根据所述获取的网络拓朴结构, 对所述网络中的第二网络 设备进行故障监测。
14、 一种检测网络设备类型的***, 其特征在于, 所述***包括: 所述检 测装置设置在第一网络设备上, 所述至少一个反射器与至少一个第二网络设备 相匹配, 其中, 所述检测装置位于所述反射器的前端; 其中,
所述检测装置, 用于发送测试光脉冲给所述反射器; 获取所述反射器反射 的测试光脉冲的光功率, 以及所述反射器到所述第一网络设备的光纤距离; 根 据所述反射器反射的测试光脉冲的光功率, 所述发送的测试光脉冲的光功率, 以及所述反射器到所述第一网络设备的光纤距离, 获取所述第二网络设备的 K 值因子; 根据所述 K值因子, 确定所述第二网络设备的设备类型; 其中, 所述 第二网络设备的 K值因子与所述第二网络设备的设备类型一一对应;
所述反射器, 用于返回所述反射的测试光脉冲的光功率, 其中所述每个反 射器具有不同的反射率。
15、 根据权利要求 14所述的***, 其特征在于, 当所述第一网络设备为光 线路终端时 , 所述检测装置还用于根据所述确定的第二网络设备的设备类型以 及所述反射器到所述光线路终端的光纤距离, 确定所述网络的拓朴结构。
16、 根据权利要求 14或者 15所述的***, 其特征在于, 所述检测装置还 用于存储预先设置的每个第二网络设备的 K值因子与每个第二网络设备的设备 类型——对应的对应关系表。
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