CN2744075Y - Fault tester for free space optical communication - Google Patents
Fault tester for free space optical communication Download PDFInfo
- Publication number
- CN2744075Y CN2744075Y CNU2004200954670U CN200420095467U CN2744075Y CN 2744075 Y CN2744075 Y CN 2744075Y CN U2004200954670 U CNU2004200954670 U CN U2004200954670U CN 200420095467 U CN200420095467 U CN 200420095467U CN 2744075 Y CN2744075 Y CN 2744075Y
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- CN
- China
- Prior art keywords
- microprocessor
- multiplexer
- fso
- multiplexor
- control panel
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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Abstract
The utility model relates to a malfunction detecting device for FSO which is arranged on the current end or the opposite end of the FSO, comprising a microprocessor, a first multiplexor which is connected with the microprocessor, a second multiplexor, a light collecting/transmitting module which is connected with the first multiplexor and the back stage of the second multiplexor, a transmitting plate which is connected with the first multiplexor, a receiving plate which is connected with the second multiplexor and a piece of control panel. A test key, a remote loopback key and a proximal loopback key are arranged on the control panel. The control panel is connected with the microprocessor. The first input and output interface of the microprocessor and the second input and output interface of the microprocessor respectively output a control signal (channel selecting signal) to the first multiplexor and the second multiplexor. With the utility model, maintainers can detect on one end of the FSO device whether malfunctions generate in the FSO device or an external device which is connected with the end of the FSO device conveniently and accurately.
Description
Technical field
The utility model relates to a kind of failure diagnosis control device, particularly relates to the failure diagnosis control device that is simple and easy to usefulness of a kind of FSO of being used for.
Background technology
Free space optical communication (Free Space Optical Communication, FSO) equipment is as a kind of communication equipment, need to use in pairs, these FSO equipment two ends connect other communication equipment respectively, in use can break down unavoidably, or causing communication disruption because miscellaneous equipment breaks down, this just needs effectively to detect and method of tracing trouble comes this FSO equipment and connected communication equipment are detected.Existing FSO equipment designs test function (can put " test " state) in circuit, when interrupting appears in communication link, FSO equipment can be placed " test " state (at this moment need disconnect extraneous the connection, not connect external signal) to come detection failure whether to go out environment division at FSO.And in practical operation, whether only detect FSO equipment with the method breaks down, also have following weak point: one is to use inconvenience, because of FSO equipment is paired use, two ends at a distance of hundreds of rice to several kms, in testing process, if when local terminal is put " test " state, the opposite end must disconnect with extraneous and being connected, and carries out winding with a backup optical fiber again; The 2nd, adopt this method can not judge definitely network failure goes out which end at FSO equipment.
The utility model content
Technical problem to be solved in the utility model is: use inconvenience and inaccurate a kind of FSO fault test set accurately that is easy to use and detect that provides is provided for overcoming existing FSO fault test set.
For solving the problems of the technologies described above, the technical scheme that the utility model adopted is: the failure detector that a kind of FSO of being used for is provided, this failure detector is located at the local terminal or the opposite end of FSO equipment, it includes a microprocessor, first multiplexer that is connected with this microprocessor and second multiplexer, be connected the optical transceiver module of level behind this first multiplexer and second multiplexer, and the transmission board that is connected with described first multiplexer, the dash receiver that is connected with described second multiplexer, further also be provided with a control panel, on this control panel, be provided with " test ", " remote loopback " and " near-end loopback " button, described control panel is connected with this microprocessor, and first input/output interface of microprocessor and second input/output interface are exported a channel selecting signal respectively to first multiplexer and second multiplexer.
In the technical program, on described control panel, further be provided with the indicator light of each button operating state of indication.
In the technical program, further include one and be connected being used on the described microprocessor and control the management interface circuit that the opposite end is operated in " test " or " remote loopback " state.
The beneficial effects of the utility model are: in the utility model, the maintenance personal promptly can detect this FSO equipment or whether the external equipment that is connected with this end breaks down exactly at an end of FSO equipment, brings convenience to the maintenance personal.
Description of drawings
Fig. 1 is the schematic diagram of data loopback in the utility model.
Fig. 2 is the FSO schematic block circuit diagram of local terminal in the utility model.
Fig. 3 is the circuit theory diagrams of part of the present utility model.
Embodiment
Seeing also shown in Figure 1ly, is the schematic diagram of data loopback in the utility model.Because FSO equipment is to use in pairs, for ease of narration, we call local terminal and opposite equip. to it, and local terminal and opposite end are connected with external equipment respectively.The communication interface signal of this FSO equipment and external equipment is the 1310nm laser signal, and is to adopt 850nm laser to come transmission signals between the local terminal of FSO equipment and its opposite end.Under normal user mode, local terminal is sent to the opposite end from the data that connected external equipment receives, and sends to the external equipment that is connected with the opposite end by the opposite end again; And the data that are connected external equipment with it that the opposite end receives send to local terminal, send to the external equipment that is connected with local terminal by local terminal again.
And in the utility model, be on FSO equipment commonly used, be provided with " test " (TEST), " remote loopback " (FAR) reach " near-end loopback " (NEAR) function.After " remote loopback " was meant that FSO equipment local terminal receives the signal of opposite end, the laser that is converted to 1310nm by data-interface was not sent local terminal, but the laser that is converted to 850nm again is by sending it back opposite end FSO equipment in the air; When " near-end loopback " was meant the signal next by receiving the outside when FSO equipment local terminal, it was not to send to the opposite end, but directly sends the external equipment that is connected with local terminal again back to through data-interface.
When interrupted communication link, FSO equipment local terminal is placed " test " state, " remote loopback " put by remote network management in the opposite end, need not the maintenance personal and goes to the opposite end to pull out FSO equipment and the extraneous optical fiber that is connected, and whether the promptly diagnosable FSO of haveing equipment has fault; If FSO equipment itself does not have fault, cancellation " test " state, whether local terminal is put " near-end loopback ", just can detect the external equipment that is connected with this end FSO equipment has fault, can also detect the external equipment that is connected with the opposite end by this method and whether have fault.
Seeing also shown in Figure 2ly, is schematic block circuit diagram of the present utility model.In the utility model, this checkout gear both can be by manually control, also can be in this locality or far-end by the webmaster program control.Manually control is meant and is being provided with on the FSO equipment on the control panel, on this control panel, be provided with " test ", " remote loopback " and reach " near-end loopback " three bands lamp button, this control panel is connected with a microprocessor (MCU), level connects a multiplexer U2 and a multiplexer U3 respectively behind this microprocessor, and this multiplexer U2 and multiplexer U3 all are connected with 1310 optical transceiver module U1.Wherein, the test data of microprocessor is transferred to multiplexer U2, and the I/O1 of microprocessor and I/O2 interface are exported a control signal (channel selecting signal) respectively to multiplexer U2 and multiplexer U3.And multiplexer U2 can be sent to the opposite end with data by a transmission board (not shown); And multiplexer U3 can receive the data of opposite end by a dash receiver (not shown).
When by " test " key, microprocessor can produce test signal (for the 1KHz square wave) and send into multiplexer U2, and the I/O1 mouth of while microprocessor is exported a control signal and this data test signal passed through for multiplexer U2; When by " remote loopback " key, the I/O1 mouth of microprocessor is exported another control signal and the FSO device data that is received by the opposite end is passed through for multiplexer U2, then from being sent to the opposite end in the air; When by " near-end loopback " key, the I/O2 mouth of microprocessor is exported a control signal and the external interface data that received by local terminal is passed through for multiplexer U3, returns to the local terminal external equipment again; When three function buttons do not enable (three lamps all extinguish), the I/O1 of microprocessor and I/O2 mouth are exported control signal corresponding respectively, the external interface data that local terminal is received are sent to the opposite end, deliver to external equipment by the FSO device data of opposite end reception by multiplexer U3 by multiplexer U2, are normal operating conditions.
The management interface circuit is to connect local network management or remote network management, and by hyperterminal software management and configuration, operation principle is the same after the microprocessor responds, also can finish test, remote loopback, near-end loopback function.Use network management, when link broke down, the maintenance personal can directly control the opposite end by remote network management at local terminal and be in " test ", " remote loopback " or " near-end loopback " state, brings convenience to the maintenance personal.
Seeing also shown in Figure 3ly, is local circuit schematic diagram of the present utility model.When being operated in " test " state, be " 01 " from " the SEND_S1 SEND_S0 " of microprocessor, choose the second channel of multiplexer U2 this moment, be about to test signal and be sent to transmission board and be sent to the opposite end; When being operated in " remote loopback " state, " SEND_S1 SEND_S0 " from microprocessor is " 00 ", choose the first passage of multiplexer U2 this moment, be about to signal (receive to end signal) and be sent to transmission board and be sent to the opposite end from dash receiver; When being operated in " NEAR " state, " RCV_S " from microprocessor is " 0 ", making multiplexer U3 " S1 S0 " is " 00 ", choose the first passage of multiplexer U3 this moment, be about to pass through, return to external equipment by 1310 optical transceiver module U1 again by the external interface data that 1310 optical transceiver module U1 (local terminal) receive; When FSO equipment is normal operating conditions, " SEND_S1 SEND_S0 " from microprocessor is " 11 ", " RCV_S " is " 1 ", choose the four-way of U2, U3 this moment, even the external interface data that 1310 optical transceiver module U1 receive are sent to the opposite end, deliver to external equipment by multiplexer U3 through 1310 optical transceiver module U1 by the FSO device data of opposite end reception by multiplexer U2.
In the utility model, the maintenance personal promptly can detect this FSO equipment or whether the external equipment that is connected with this end breaks down at an end of FSO equipment, brings convenience to the maintenance personal.
Claims (3)
1. failure detector that is used for free space optical communication, this failure detector is located at the local terminal and the opposite end of free space optical communication, it includes a microprocessor, first multiplexer that is connected with this microprocessor and second multiplexer, be connected the optical transceiver module of level behind this first multiplexer and second multiplexer, and the transmission board that is connected with described first multiplexer, the dash receiver that is connected with described second multiplexer, it is characterized in that: further also be provided with a control panel, on this control panel, be provided with " test ", " remote loopback " and " near-end loopback " button, described control panel is connected with this microprocessor, and first input/output interface of microprocessor and second input/output interface are exported a channel selecting signal respectively to first multiplexer and second multiplexer.
2. a kind of failure detector that is used for free space optical communication as claimed in claim 1 is characterized in that: the indicator light that further is provided with each button operating state of indication on described control panel.
3. a kind of failure detector that is used for free space optical communication as claimed in claim 1 is characterized in that: further include one and be connected being used on the described microprocessor and control the management interface circuit that the opposite end is operated in " test " or " remote loopback " state.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2004200954670U CN2744075Y (en) | 2004-11-16 | 2004-11-16 | Fault tester for free space optical communication |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2004200954670U CN2744075Y (en) | 2004-11-16 | 2004-11-16 | Fault tester for free space optical communication |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2744075Y true CN2744075Y (en) | 2005-11-30 |
Family
ID=35634092
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2004200954670U Expired - Fee Related CN2744075Y (en) | 2004-11-16 | 2004-11-16 | Fault tester for free space optical communication |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2744075Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104836617A (en) * | 2015-05-29 | 2015-08-12 | 杭州华三通信技术有限公司 | Fault positioning method and device |
-
2004
- 2004-11-16 CN CNU2004200954670U patent/CN2744075Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104836617A (en) * | 2015-05-29 | 2015-08-12 | 杭州华三通信技术有限公司 | Fault positioning method and device |
| CN104836617B (en) * | 2015-05-29 | 2017-08-11 | 新华三技术有限公司 | fault locating method and device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: SHENZHEN SIAN COMMUNICATIONS TECHNOLOGY CO., LTD. Effective date: 20110824 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| COR | Change of bibliographic data |
Free format text: CORRECT: ADDRESS; FROM: 518053 SHENZHEN, GUANGDONG PROVINCE TO: 518000 SHENZHEN, GUANGDONG PROVINCE |
|
| TR01 | Transfer of patent right |
Effective date of registration: 20110824 Address after: 518000 room 1503, Pioneer Park, University Town, Taoyuan street, Nanshan District, Shenzhen, Guangdong Patentee after: Shenzhen Sian Communications Technology Co., Ltd. Address before: 518053, Guangdong, Shenzhen, Nanshan District overseas Chinese city, Shahe Industrial Zone, south side of the south side of the five layer Patentee before: Shijiren Radio Communication Equipment Co., Ltd., Shenzhen |
|
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20051130 Termination date: 20131116 |