CN103731215A - Optical line terminal with two-stage temperature monitoring - Google Patents
Optical line terminal with two-stage temperature monitoring Download PDFInfo
- Publication number
- CN103731215A CN103731215A CN201310568205.5A CN201310568205A CN103731215A CN 103731215 A CN103731215 A CN 103731215A CN 201310568205 A CN201310568205 A CN 201310568205A CN 103731215 A CN103731215 A CN 103731215A
- Authority
- CN
- China
- Prior art keywords
- circuit
- reference voltage
- voltage supply
- comparison circuit
- optical line
- 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.)
- Pending
Links
Abstract
The invention discloses an optical line terminal with two-stage temperature monitoring. The optical line terminal comprises an exchanging chip, an OLTMAC connected to the exchanging chip, an optical module connected with the OLTMAC and a temperature sensor. The temperature sensor is connected to a first comparison circuit and a second comparison circuit at the same time. The first comparison circuit is connected with a first reference voltage supply circuit and is connected to a control circuit. The control circuit is connected to the OLTMAC. The second comparison circuit is connected with a second reference voltage supply circuit. The output end of the second comparison circuit is connected to a warning device. The optical line terminal has the advantages that two-stage temperature monitoring is achieved, and the stability and the safety of the terminal are guaranteed.
Description
Technical field
The present invention relates to a kind of optical line terminal, relate in particular a kind of optical line terminal of two-stage monitoring temperature.
Background technology
As a kind of broadband access technology, EPON has started to enter the stage of large scale deployment, in the representative network structure of EPON system, comprises OLT, ONU, POS.OLT equipment is optical line terminal, for connecting the terminal equipment of fiber optic backbone, is generally arranged in central machine room.OLT is Optical Network Terminal, and OLT is main control centre, realizes the function of network management.The same day, gas excess Temperature or Optical Network Terminal were always in running order, and heating can be very serious, and excess Temperature can exert an influence to the performance of Optical Network Terminal, when serious, can threaten to the safety of terminal.
Summary of the invention
The invention provides a kind of optical line terminal of two-stage monitoring temperature, it has two-stage monitoring temperature, guarantees stability and the fail safe of terminal.
For solving above-mentioned technical problem, the present invention by the following technical solutions:
The optical line terminal of two-stage monitoring temperature, it comprises exchange chip, be connected to OLT MAC and the optical module being connected with OLT MAC on exchange chip, also comprise temperature sensor, described temperature sensor is connected on the first comparison circuit and the second comparison circuit simultaneously, on the first described comparison circuit, be also connected with the first reference voltage supply circuit, the first described comparison circuit is also connected on control circuit, described control circuit is connected on OLT MAC, on the second described comparison circuit, be connected with the second reference voltage supply circuit, the output of the second described comparison circuit is connected on alarm device.
Further technical scheme is:
As preferably, the voltage of the first described reference voltage supply circuit output is higher than the voltage of the second reference voltage supply circuit output.
Further, the first described reference voltage supply circuit and the second reference voltage supply circuit are voltage stabilizing circuit.
As preferably, described alarm device is LED lamp.
Compared with prior art, the invention has the beneficial effects as follows: the present invention has two-stage monitoring temperature, when temperature surpasses certain value, start to report to the police, be convenient to staff and take cooling measure, when temperature is elevated to certain value again, automatic shutdown, guarantees temperature and the fail safe of terminal.
Accompanying drawing explanation
Below in conjunction with the drawings and specific embodiments, the present invention is described in further detail.
Fig. 1 is theory diagram of the present invention.
Embodiment
Below in conjunction with accompanying drawing, the present invention is further illustrated.Embodiments of the present invention include but not limited to the following example.
[embodiment]
The optical line terminal of two-stage monitoring temperature as shown in Figure 1, it comprises exchange chip, be connected to OLT MAC and the optical module being connected with OLT MAC on exchange chip, also comprise temperature sensor, described temperature sensor is connected on the first comparison circuit and the second comparison circuit simultaneously, on the first described comparison circuit, be also connected with the first reference voltage supply circuit, the first described comparison circuit is also connected on control circuit, described control circuit is connected on OLT MAC, on the second described comparison circuit, be connected with the second reference voltage supply circuit, the output of the second described comparison circuit is connected on alarm device.OLT MAC is medium access controller, the major control element that it is optical line terminal.In the present invention, utilize the second reference voltage supply circuit to provide a reference voltage, i.e. predefined alarm threshold to the second comparison circuit; The first reference voltage supply circuit provides a reference voltage to the first comparison circuit, i.e. predefined shutdown threshold value; Utilize temperature sensor to detect the temperature of terminal, when the excess Temperature that temperature sensor detects, during higher than alarm threshold, a signal driver alarm device of the second comparison circuit output is started working.When alarm device starts alarm, the temperature of terminal also can not damage terminal, and now, staff can take measures to terminal cooling, avoids temperature to continue to raise.If do not take cooling measure, the temperature of terminal continues to rise, when temperature rises to certain value, the threshold value of shutting down, a signal of the first comparison circuit output is to control circuit, control circuit is controlled OLT MAC shutdown, guarantees stability and the fail safe of terminal, avoids excess Temperature to damage terminal.
The voltage of the first described reference voltage supply circuit output is higher than the voltage of the second reference voltage supply circuit output.The voltage that the first reference voltage supply circuit improves is shutdown threshold value, and now temperature should be greater than alarm temperature, therefore the voltage of the first described reference voltage supply circuit output is higher than the voltage of the second reference voltage supply circuit output.
For the ease of the design of circuit, described the first reference voltage supply circuit and the second reference voltage supply circuit are voltage stabilizing circuit.Voltage stabilizing circuit exports the circuit that keeps constant, and it is the reference voltage of circuit as a comparison, exports constantly, can guarantee the accuracy of controlling.Voltage stabilizing circuit utilizes the simple electronic devices and components such as triode, amplifier, resistance to form, and circuit is simple.
For the ease of alarm device is driven, described alarm device is LED lamp.
Be as mentioned above embodiments of the invention.The present invention is not limited to above-mentioned execution mode, and anyone should learn the structural change of making under enlightenment of the present invention, and every have identical or close technical scheme with the present invention, within all falling into protection scope of the present invention.
Claims (4)
1. the optical line terminal of two-stage monitoring temperature, it comprises exchange chip, be connected to OLT MAC and the optical module being connected with OLT MAC on exchange chip, it is characterized in that: also comprise temperature sensor, described temperature sensor is connected on the first comparison circuit and the second comparison circuit simultaneously, on the first described comparison circuit, be also connected with the first reference voltage supply circuit, the first described comparison circuit is also connected on control circuit, described control circuit is connected on OLT MAC, on the second described comparison circuit, be connected with the second reference voltage supply circuit, the output of the second described comparison circuit is connected on alarm device.
2. the optical line terminal of two-stage monitoring temperature according to claim 1, is characterized in that: the voltage of the first described reference voltage supply circuit output is higher than the voltage of the second reference voltage supply circuit output.
3. the optical line terminal of two-stage monitoring temperature according to claim 2, is characterized in that: described the first reference voltage supply circuit and the second reference voltage supply circuit are voltage stabilizing circuit.
4. the optical line terminal of two-stage monitoring temperature according to claim 1, is characterized in that: described alarm device is LED lamp.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310568205.5A CN103731215A (en) | 2013-11-15 | 2013-11-15 | Optical line terminal with two-stage temperature monitoring |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310568205.5A CN103731215A (en) | 2013-11-15 | 2013-11-15 | Optical line terminal with two-stage temperature monitoring |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103731215A true CN103731215A (en) | 2014-04-16 |
Family
ID=50455158
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310568205.5A Pending CN103731215A (en) | 2013-11-15 | 2013-11-15 | Optical line terminal with two-stage temperature monitoring |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103731215A (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101582558A (en) * | 2009-06-08 | 2009-11-18 | 北京国科世纪激光技术有限公司 | Security protection and control device of medium/high power solid state laser module |
| CN101621332A (en) * | 2009-07-07 | 2010-01-06 | 中兴通讯股份有限公司 | Method and device for detecting optical power of optical network unit on line |
| CN102625199A (en) * | 2012-04-23 | 2012-08-01 | 索尔思光电（成都）有限公司 | Dual-channel GEPON OLT CSFP (Gigabitcapable Passive Optical Network Optical Line Terminal Compact Small Form Factor Pluggable) optical module |
| CN102684782A (en) * | 2012-05-08 | 2012-09-19 | 成都瑞凌科信息技术有限公司 | Protection device of Ethernet passive optical network (EPON) system and data redundancy backup method and monitoring method |
| CN202696615U (en) * | 2012-08-13 | 2013-01-23 | 成都思迈科技发展有限责任公司 | Fiber converter with fault report and remote control functions |
| US20130051789A1 (en) * | 2011-08-30 | 2013-02-28 | Cyoptics, Inc. | Monitoring Circuitry For Optical Transceivers |
| CN203574658U (en) * | 2013-11-15 | 2014-04-30 | 成都市宏山科技有限公司 | Optical line terminal with two levels of temperature monitoring |
-
2013
- 2013-11-15 CN CN201310568205.5A patent/CN103731215A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101582558A (en) * | 2009-06-08 | 2009-11-18 | 北京国科世纪激光技术有限公司 | Security protection and control device of medium/high power solid state laser module |
| CN101621332A (en) * | 2009-07-07 | 2010-01-06 | 中兴通讯股份有限公司 | Method and device for detecting optical power of optical network unit on line |
| US20130051789A1 (en) * | 2011-08-30 | 2013-02-28 | Cyoptics, Inc. | Monitoring Circuitry For Optical Transceivers |
| CN102625199A (en) * | 2012-04-23 | 2012-08-01 | 索尔思光电（成都）有限公司 | Dual-channel GEPON OLT CSFP (Gigabitcapable Passive Optical Network Optical Line Terminal Compact Small Form Factor Pluggable) optical module |
| CN102684782A (en) * | 2012-05-08 | 2012-09-19 | 成都瑞凌科信息技术有限公司 | Protection device of Ethernet passive optical network (EPON) system and data redundancy backup method and monitoring method |
| CN202696615U (en) * | 2012-08-13 | 2013-01-23 | 成都思迈科技发展有限责任公司 | Fiber converter with fault report and remote control functions |
| CN203574658U (en) * | 2013-11-15 | 2014-04-30 | 成都市宏山科技有限公司 | Optical line terminal with two levels of temperature monitoring |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102576047B (en) | For identifying the method and apparatus of the fault in photovoltaic apparatus | |
| CN102761052A (en) | Optical module working parameter adjusting method and adjusting device | |
| CN105562952A (en) | Monitoring system for laser device | |
| CN111835413B (en) | Monitoring system capable of monitoring, adjusting and testing optical module in real time | |
| CN103269056B (en) | Current detection protection device and method | |
| CN105813344B (en) | The optical power control system and control method of a kind of optical module | |
| CN103731204A (en) | Optical network terminal with temperature monitoring function | |
| US20150177290A1 (en) | Controller for automatically detecting the maximal operating current of light sources and detection method thereof | |
| CN203394821U (en) | Failure detection circuit for direct current fan | |
| CN103368640B (en) | Expansion optical module digital diagnostic monitoring improved system | |
| CN203574658U (en) | Optical line terminal with two levels of temperature monitoring | |
| CN102723995B (en) | A kind of active light module controller | |
| CN102508011A (en) | Overvoltage and no-voltage detection circuit and testing device | |
| CN102288310A (en) | Device for measuring temperature of cable joint | |
| CN103812233B (en) | Micro-electric current inductive power supply type temperature measurement and alarm device and thermometric alarm method | |
| CN103731215A (en) | Optical line terminal with two-stage temperature monitoring | |
| CN202837459U (en) | Power-on continuity test device for photovoltaic module | |
| CN103715604A (en) | Driving system and driving method of DFB laser | |
| CN203274949U (en) | Over-temperature detection and protection circuit of current transformer | |
| CN105223433A (en) | Metal oxide arrester on-line monitoring system | |
| CN215575498U (en) | Monitoring system for aging test of chip | |
| CN204924613U (en) | Safety arrangement of big power laser fiber optic coupling end | |
| CN102435953B (en) | Power supply monitoring instrument of seismic data processing workstation | |
| CN110867825B (en) | Overvoltage protection circuit of constant power output power supply | |
| CN203574651U (en) | OLT device with redundancy protection |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C12 | Rejection of a patent application after its publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20140416 |