CN2708291Y - USB optical time domain reflection (OTDR) testing device having auxiliary power supply - Google Patents
USB optical time domain reflection (OTDR) testing device having auxiliary power supply Download PDFInfo
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- CN2708291Y CN2708291Y CNU2004200478547U CN200420047854U CN2708291Y CN 2708291 Y CN2708291 Y CN 2708291Y CN U2004200478547 U CNU2004200478547 U CN U2004200478547U CN 200420047854 U CN200420047854 U CN 200420047854U CN 2708291 Y CN2708291 Y CN 2708291Y
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- time domain
- optical time
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- auxiliary power
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Abstract
The utility model relates to a USB optical time domain reflection (OTDR) detecting device with auxiliary power supply. The utility model contains: an optical time domain reflection detecting module, which is used to detect the optical fiber; a USB module, which is used for introducing the external electric power, and controlling the optical time domain reflection detecting module to proceed operation of detecting the optical fiber and collecting data; a power module, which is used for providing auxiliary electric power to make up for the insufficiency of the power supply of the external electric power.
Description
Technical field
The utility model is a kind of USB optical time domain reflect testing (OTDR) device with auxiliary power supply, be the various connection states of using measuring fiber, while can be utilized the USB port that power supply is provided and pass test result back computing machine, and available computers is controlled, to obtain relevant test data and result, and, provide auxiliary power by rechargeable battery again in response to the situation of USB port electricity shortage.
Background technology
Optical fiber is a kind ofly can transmit light and the fine glass fibre of profile, diameter be about 100 to 150 microns (micron, one meter 1,000,000/), only a little more slightly than the mankind's hair.Therefore quite light, and easily just can with bending.These characteristics of ingenious utilization optical fiber and utilize light to come the mode of communication to be called optical-fibre communications have entered the stage of practicability at present.Optical fiber will be transmitted in the data input light beam exactly at optical-fibre communications institute role, so the inside of optical fiber has some to construct cleverly, needs special technique just to make and draws.Optical fiber is partly formed by two, and core is called core (core), and outer layer segment then is called shell (clad).In order to want to transmit light, these two parts must be different to the refractive index (refractive index) of light, and the refractive index of core big a little than shell.So, major part enters the light of core, just locates to produce total reflection and moves at the interface (interface) of these two parts.That is to say, can may do not gone to housing parts and go in interface generation total reflection by the light beam of core directive shell that even therefore that optical fiber is in addition tortuous, light beam also can only one side and interface collision reflection in core, one side is advanced having many bends or curvesly.
The advantage of optical fiber is as follows:
(1) very thin, 1,000 optical fiber are integrated a branch of, and are only wide about 7 centimeters.
(2) data transmission rate height, long transmission distance, the transfer rate of following optical fiber can be up to 100Gbps, and transmission range can reach 100 kilometers, and an optical-fibre communications circuit approximates 10,000 telecommunication lines.
(3) in light weight, do not corrode, be not afraid of wave interference, service time is long.
As mentioned above; the laying distance of optical fiber is very long, in the process of laying, can utilize some to fuse (Fusion Splice) point usually; connector (Connector) adds the distance of long optical fibers, causes the optical communication condition of poor and wherein also can have bending (Bend) and open circuit etc.(its principle please refer to Calibration and Use ofOptical Time Domain Reflectometers (OTDR) to the OTDR that commonly uses, the 2-3 page or leaf, author Brian Walker, Britain's National Physical Laboratory (National Physical Laboratory) is published, in April, 2000) can accomplish to detect above-mentioned various situation, and the local distance of measuring that a situation arises.
Fig. 1 is the OTDR calcspar of commonly using, its comprised preceding terminal adapter 10 (Front connector), laser diode 11 (Laser diode), photo-coupler 12 (Coupler), pulse generator 13 (Pulse generator), collapse optical diode 14 (Avalanche Photodiode, APD), amplifier 15 (Amplifier), analog-digital converter 16 (ADconverter), control signal processor 17 (Control; Signal Processing) and display 18 (Display).
Fig. 2 is the result of the OTDR measuring fiber commonly used.From waveform, can see in each distance (position) preposition connector 21 being arranged respectively, fuse connector 25 (Poor connector), back scattering 26 (Backscatter), open circuit 27 (the optical fiber terminal points) of (Fusion Splice) point 22, connector 23 (Connector), crooked 24 (Bend), difference.From figure as can be known, the signal of optical fiber is decayed along with distance, and the generation of various situations also has different signal generations, can judge by this, the place that various situations take place.This test result has been arranged, the action that can safeguard according to this or repair.
It is efficient that OTDR can make the laying of optical fiber more precisely reach, and is to be one of indispensable instrument of optical fibre installation.But the OTDR that commonly uses is single proving installation, and it combines hardware and software, and volume is big, and is quite heavy, is inconvenient to carry, and causes the shortcoming in the use.
On the other hand, it is quite universal to commonly use the use of USB (universal serial bus) (USB, Universal Serial Bus).USB has the socket of standard, that is to say, no matter you connect today is mouse, scanner, display, printer, their socket all is identical.When you need use a certain peripherals, you should do just is inserted into the USB plug of these equipment on the computing machine or the hub (Hub) of USB, computing machine will this initiate interfacing equipment type of Auto-Sensing, and install driver.If do not want to use, at any time USB plug is pulled up, and can not have influence on the operation of computing machine Window system.
USB is except having above these benefits, and its transmission speed is ten times of the conventional serial port or faster.In addition, the usb connecting port of host side can provide the electric power of the maximum 2.5W of USB peripherals that connected, to satisfy the firm power demand of USB peripherals.But relevant USB details reference site:
Http:// www.usb.org
Various now portable digital products in addition, as mobile computer (NB), PDA(Personal Digital Assistant) is quite universal, this series products is also many to be combined with USB, if OTDR can be combined with this class portable digital product, and improve the electricity shortage part (only OTDR has just consumed the power supply of all USB) of USB, and enough auxiliary powers are provided, must promote the convenience that it uses.
The utility model content
(goal of the invention)
The main purpose of the utility model is to propose a kind of USB optical time domain reflect testing (OTDR) device with auxiliary power supply, be in conjunction with USB, required electric power and control are tested in the time of can supplying OTDR work by computing machine, and supply auxiliary power by rechargeable battery, to remedy insufficient section, use making the use of OTDR more convenient by the USB power supply.
(summary of the invention)
For reaching above-mentioned purpose, this case proposes a kind of USB optical time domain reflect testing (OTDR) device with auxiliary power supply, comprises: an optical time domain reflect testing module, and use an optical fiber is tested; One USB module in order to introducing an external power, and is controlled the action that this optical time domain reflect testing module is carried out this test optical fiber and data collection; And a power module, in order to an auxiliary power to be provided, to remedy the deficiency of this external power power supply.
The USB optical time domain reflection test device with auxiliary power supply as described, wherein this optical time domain reflect testing module is to comprise a laser diode, a photo-coupler, a pulse generator, a collapse optical diode, an amplifier, an analog-digital converter and a control signal processor.
USB optical time domain reflection test device as described with auxiliary power supply, wherein this optical time domain reflect testing module is to detect the distance that the various circuit situations of this optical fiber take place, and comprises preposition connector, fuses (Fusion Splice) point, the distance of the connector (Poor connector) of connector (Connector), crooked (Bend), difference, back scattering (Backscatter), optical fiber terminal point.
USB optical time domain reflection test device as described with auxiliary power supply, wherein this USB module is to comprise a USB connector, use and an outside computer interconnection, and by this computing machine supply electric power with control this optical time domain reflect testing module, this optical fiber is tested, and with the various situations on the fibre circuit, be presented on the screen of this computing machine, can utilize this USB module to collect the various data of Optical Fiber Transmission simultaneously.
The USB optical time domain reflection test device with auxiliary power supply as described, wherein this computing machine is to comprise the computing machine that a mobile computer, general personal computer (PC) or other embedded system (Embedded System) in communication system, test macro etc. can provide necessary usb connecting port.
USB optical time domain reflection test device as described with auxiliary power supply, wherein this power module comprises: a rechargeable battery, in order to this auxiliary power to be provided; And a charging device (Charger), in order to this rechargeable battery charging.
The USB optical time domain reflection test device with auxiliary power supply as described, wherein this rechargeable battery can see through a voltage adjusting device this auxiliary power is provided.
The USB optical time domain reflection test device with auxiliary power supply as described, wherein this charging device can utilize this external power that this rechargeable battery is charged.
USB optical time domain reflection test device as described with auxiliary power supply, wherein more comprise a control module, in order to transmitting the signal between this USB module and this optical time domain reflect testing module, and control this external power and power to the opportunity of this optical time domain reflect testing module.
The USB optical time domain reflection test device with auxiliary power supply as described, wherein this control module is by this auxiliary power power supply.
Description of drawings
This case must be by the following icon and detailed description, in order to do a more deep understanding:
Fig. 1: the optical time domain reflect testing of commonly using (OTDR) calcspar.
Fig. 2: the OTDR test result figure that commonly uses.
Fig. 3: the block schematic diagram of USB optical time domain reflect testing (OTDR) device with auxiliary power supply of this case preferred embodiment.
Fig. 4: the detailed block diagram of this case preferred embodiment.
Fig. 5: another preferred embodiment of this case.
Fig. 6: USB optical time domain reflect testing (OTDR) device and mobile computer connection diagram with auxiliary power supply of this case preferred embodiment.
The figure number of icon primary clustering is as follows:
10: preceding terminal adapter 11: laser diode
12: photo-coupler 13: pulse generator
14: collapse optical diode 15: amplifier
16: analog-digital converter 17: the control signal processor
18: display
21: preposition connector 22: fuse a little
23: connector 24: bending
25: the connector 26 of difference: back scattering
27: open circuit
30: USB optical time domain reflect testing (OTDR) device with auxiliary power supply
31:USB module 311:USB link head
312:USB engine 32: control module
321: microprocessor 322: steering logic
33: power module 331: charging device
332: rechargeable battery 333: voltage adjusting device
34: the optical time domain reflect testing module
S1, S2: switch
Embodiment
See also Fig. 3, be USB optical time domain reflect testing (OTDR) device with auxiliary power supply of this case preferred embodiment.As shown in the figure, USB optical time domain reflect testing (OTDR) device 30 of this case with auxiliary power supply mainly is made up of USB module 31, control module 32, power module 33 and optical time domain reflect testing module 34.Wherein, USB module 31 sees through USB interface and introduces external power, give power module 33 and optical time domain reflect testing module 34 with power supply, control module 32 then provides the auxiliary power power supply by power module 33, and the power supply opportunity of control optical time domain reflect testing module 34.In addition, the signal exchange of USB module 31 and optical time domain reflect testing module 34 is to transmit by control module 32.
Certainly, optical time domain reflect testing module 34 is to comprise necessary assemblies such as laser diode 11, photo-coupler 12, pulse generator 13, collapse optical diode 14, amplifier 15, analog-digital converter 16 and control signal processor 17.And optical time domain reflect testing module 34 be can detect that the various circuit situations of this optical fiber take place distance, comprise preposition connector 21, fuse (Fusion Splice) point 22, the distance of the connector 25 (Poor connector) of connector 23 (Connector), crooked 24 (Bend), difference, back scattering 26 (Backscatter), open circuit 27 (optical fiber terminal points) etc.
See also Fig. 4, further disclose the details that this case has USB optical time domain reflect testing (OTDR) device of auxiliary power supply.As shown in the figure, USB module 31 is made up of USB link head 311 (USB Connector) and USB engine 3 12 (USB Engine), control module 32 is made up of microprocessor 321 (Micro Processor) and steering logic 322 (Control Logic), power module 33 is then by charging device 331 (Charger), rechargeable battery 332, voltage adjusting device 333 (Voltage Regulator), and switch S 1, S2 are formed.
The relevant power supply source and the control on the opportunity of power supply below are described in detail in detail in this case preferred embodiment.In power supply source part, external power sees through USB interface by USB link head 311 and introduces, and charges via 331 pairs of rechargeable batteries 332 of charging device, and rechargeable battery 332 then provides auxiliary power to control module 32 via switch S 1 and voltage adjusting device 333.In addition, external power is also given optical time domain reflect testing module 34 via switch S 2 power supplies.
As for the power supply control on opportunity, be described as follows:
1, switch S 1 is responsible for the power supply of 332 pairs of steering logics 22 of switching rechargeable battery.When external power is introduced into (USB interface connects the usb connecting port of host side), then switch S 1 is for connecting (ON) state.At this moment, auxiliary power just can be adjusted through voltage adjusting device 333 by rechargeable battery 332, and control module 32 is given in power supply.Certainly, rechargeable battery 332 is during powering, and charging device 331 is to stop its charging is in (OFF) state of closing.
2, switch S 2 is responsible for switching the power supply of external power to optical time domain reflect testing module 34.Whether the connection of switch S 2, is to decide in response to the running of optical time domain reflect testing module 34.When optical time domain reflect testing module 34 is in idle state (Idle), then switch S 2 is open circuit (OFF), and charger activates (ON) charging simultaneously; Opposite, during optical time domain reflect testing module 34 in running order (Busy), switch S 2 is connected (ON) power supply, and charging device cuts out (OFF) simultaneously.As for the running of optical time domain reflect testing module 34, be that USB engine 3 12 is passed to microprocessor 321 via USB interface reception control signal, again by steering logic 322 exciting light Time Domain Reflectometry test modules 34; Simultaneously, microprocessor 321 also can make switch S 2 connect (ON), so that supplied with external power is given optical time domain reflect testing module 34.
In addition, auxiliary power is except by rechargeable battery 332 supply, also can be as shown in Figure 5, set up Direct current power source socket 334, with socket power breakout box DC power supply apparatus such as (Power Adapter), introduce outside direct supply as auxiliary power.At this moment, charging device 331 activates (ON) to rechargeable battery 332 chargings, and when externally electric power is introduced, and connects (ON) switch S 1 simultaneously and sees through voltage adjusting device 333 power supplies and give control module 32.When not existing as for the direct supply of outside, then Gong Dian situation is just the same with Fig. 4.
Fig. 6 is USB optical time domain reflect testing (OTDR) device and mobile computer connection diagram with auxiliary power supply of this case preferred embodiment.USB optical time domain reflect testing (OTDR) device 30 that this case has an auxiliary power supply can utilize the USB connector of USB module, online by USB connecting line 61 with an outside mobile computer 62, and the external power source and the control optical time domain reflect testing module of supplying USB optical time domain reflection test device 30 by this mobile computer 62 with auxiliary power supply, testing fiber 64 is tested, and with the various situations on the testing fiber circuit, be presented on the screen 63 of this computing machine, can utilize this USB module to collect the various data of Optical Fiber Transmission simultaneously.
Certainly, the employed rechargeable battery of this case, no matter adopt built-in Ni-MH battery that maybe can take out or lithium ion battery, its auxiliary power that provides must be enough to power supply in this case device, the assembly except the optical time domain reflect testing module uses.In addition, the supply of auxiliary power, except using rechargeable battery, directly adopt general dry cell also do not have can not, then charger just can omit.But, in this case preferred embodiment, be to be preferred version to adopt rechargeable battery.
In sum, USB optical time domain reflect testing (OTDR) device that this case has an auxiliary power supply be the screen of the OTDR that will commonly use, partly firmware, and software move on on the mobile computer, with hardware and partly firmware reservation, add USB module, control module and power module, make it can receive the control of outer computer, with test result or data directly are presented at general computing machine or above the mobile computer, the volume of OTDR is greatly reduced, and weight saving, easy to carry.When testing, the USB port on the connection mobile computer can reach the purpose of test.Simultaneously, because with the display of OTDR, partly firmware, and software removal, its cost of manufacture also can greatly reduce, and can promote the competitive power of industry.
The disclosed technology of this case must implement according to this by haveing the knack of the present technique personage, and its unprecedented practice also possesses patentability, and the whence proposes the application of patent in accordance with the law.Only the above embodiments still are not enough to contain the claim of this case institute desire protection, therefore, file an application claim such as attached.
Claims (10)
1, a kind of USB optical time domain reflect testing (OTDR) device with auxiliary power supply is characterized in that, comprises:
One optical time domain reflect testing module is used an optical fiber is tested;
One USB module in order to introducing an external power, and is controlled the action that this optical time domain reflect testing module is carried out this test optical fiber and data collection; And
One power module is in order to provide an auxiliary power, to remedy the deficiency of this external power power supply.
2, as 1 described USB optical time domain reflection test device of claim the with auxiliary power supply, it is characterized in that wherein this optical time domain reflect testing module is to comprise a laser diode, a photo-coupler, a pulse generator, a collapse optical diode, an amplifier, an analog-digital converter and a control signal processor.
3, as 1 described USB optical time domain reflection test device of claim the with auxiliary power supply, it is characterized in that, wherein this optical time domain reflect testing module is to detect the distance that the various circuit situations of this optical fiber take place, and comprises preposition connector, fuses (Fusion Splice) point, the distance of the connector (Poor connector) of connector (Connector), crooked (Bend), difference, back scattering (Backscatter), optical fiber terminal point.
4, as 1 described USB optical time domain reflection test device of claim the with auxiliary power supply, it is characterized in that, wherein this USB module is to comprise a USB connector, use and an outside computer interconnection, and supply electric power and this optical time domain reflect testing module of control by this computing machine, this optical fiber is tested, and with the various situations on the fibre circuit, be presented on the screen of this computing machine, can utilize this USB module to collect the various data of Optical Fiber Transmission simultaneously.
5, as 1 described USB optical time domain reflection test device of claim the with auxiliary power supply, it is characterized in that wherein this computing machine is to comprise the computing machine that a mobile computer, general personal computer (PC) or other embedded system (Embedded System) in communication system, test macro etc. can provide necessary usb connecting port.
6, as 1 described USB optical time domain reflection test device of claim the, it is characterized in that wherein this power module comprises with auxiliary power supply:
One rechargeable battery is in order to provide this auxiliary power; And
One charging device (Charger) is in order to charge to this rechargeable battery.
As 6 described USB optical time domain reflection test devices of claim the, it is characterized in that 7, wherein this rechargeable battery can see through a voltage adjusting device this auxiliary power is provided with auxiliary power supply.
8, as 6 described USB optical time domain reflection test devices of claim the, it is characterized in that wherein this charging device can utilize this external power that this rechargeable battery is charged with auxiliary power supply.
9, as 1 described USB optical time domain reflection test device of claim the with auxiliary power supply, it is characterized in that, wherein more comprise a control module, in order to transmitting the signal between this USB module and this optical time domain reflect testing module, and control this external power and power to the opportunity of this optical time domain reflect testing module.
As 9 described USB optical time domain reflection test devices of claim the, it is characterized in that 10, wherein this control module is by this auxiliary power power supply with auxiliary power supply.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2004200478547U CN2708291Y (en) | 2004-04-01 | 2004-04-01 | USB optical time domain reflection (OTDR) testing device having auxiliary power supply |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2004200478547U CN2708291Y (en) | 2004-04-01 | 2004-04-01 | USB optical time domain reflection (OTDR) testing device having auxiliary power supply |
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| CN2708291Y true CN2708291Y (en) | 2005-07-06 |
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| CNU2004200478547U Expired - Lifetime CN2708291Y (en) | 2004-04-01 | 2004-04-01 | USB optical time domain reflection (OTDR) testing device having auxiliary power supply |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102834705A (en) * | 2010-03-31 | 2012-12-19 | 阿尔卡特朗讯 | Monitoring a system using optical reflectometry |
| CN103384170A (en) * | 2012-05-04 | 2013-11-06 | 鸿富锦精密工业（深圳）有限公司 | Data transmission system and optical fiber data line |
| CN105356936A (en) * | 2015-11-27 | 2016-02-24 | 国网北京市电力公司 | Device for detecting whether optical cable breaks or not |
| CN105356937A (en) * | 2015-11-27 | 2016-02-24 | 国网北京市电力公司 | Device for detecting whether optical cable breaks or not |
-
2004
- 2004-04-01 CN CNU2004200478547U patent/CN2708291Y/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102834705A (en) * | 2010-03-31 | 2012-12-19 | 阿尔卡特朗讯 | Monitoring a system using optical reflectometry |
| CN103384170A (en) * | 2012-05-04 | 2013-11-06 | 鸿富锦精密工业（深圳）有限公司 | Data transmission system and optical fiber data line |
| CN105356936A (en) * | 2015-11-27 | 2016-02-24 | 国网北京市电力公司 | Device for detecting whether optical cable breaks or not |
| CN105356937A (en) * | 2015-11-27 | 2016-02-24 | 国网北京市电力公司 | Device for detecting whether optical cable breaks or not |
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| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CX01 | Expiry of patent term |
Expiration termination date: 20140401 Granted publication date: 20050706 |