CN104283815A - Back-up power source two-layer managed switch based on super-capacitor - Google Patents
Back-up power source two-layer managed switch based on super-capacitor Download PDFInfo
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- CN104283815A CN104283815A CN201310288422.9A CN201310288422A CN104283815A CN 104283815 A CN104283815 A CN 104283815A CN 201310288422 A CN201310288422 A CN 201310288422A CN 104283815 A CN104283815 A CN 104283815A
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- 239000003990 capacitor Substances 0.000 title claims abstract description 36
- 230000009286 beneficial effect Effects 0.000 claims description 2
- 238000006243 chemical reaction Methods 0.000 claims description 2
- 230000001052 transient effect Effects 0.000 claims description 2
- 230000005611 electricity Effects 0.000 claims 1
- 238000007600 charging Methods 0.000 description 9
- 238000012360 testing method Methods 0.000 description 6
- 238000000034 method Methods 0.000 description 5
- 238000004891 communication Methods 0.000 description 4
- 238000013461 design Methods 0.000 description 3
- 230000007704 transition Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000007689 inspection Methods 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 206010033799 Paralysis Diseases 0.000 description 1
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- 230000002411 adverse Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000008358 core component Substances 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000001934 delay Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
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- 238000012544 monitoring process Methods 0.000 description 1
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Abstract
The invention discloses a back-up power source two-layer managed switch based on a super-capacitor. The back-up power source two-layer managed switch has the advantages that after an accidental power failure, normal data exchange work can still be kept within 30 seconds, in addition, a power failure warning can be given to a control end in a relay warning or mail feedback mode, so the control end can accurately locate trouble spots and the trouble spots can be timely maintained and problems can be solved.
Description
Technical field
The present invention relates to industrial ethernet switch and still can keep the normal communication of data and quick feedback information to control end based on super capacitor back-up source two layer management type switchboard at accident power-off, be widely used in fields such as Industry Control scene, track traffic, reason video monitor, adverse circumstances monitorings.
Background technology
Industrial ethernet switch is at present in track traffic, colliery, in the middle of the industry fields such as power communication system, each equipment effectively stable work can all be unable to do without a large amount of transfer of data and parametric controller, in the middle of this, switch plays vital effect, when there is accidental interruption in the power supply of switch, the interruption even paralysis of whole system of partial data can be caused, be not easy abnormal switch to be detected in the middle of this process, two kinds are had for addressing this problem the method generally adopted at present, utilize professional power-off monitoring software to monitor or be equipped with outside power storage module etc. and maintain the normal work of switch and the feedback of data after power-off.
Specialty power-off monitoring software, it carries out detection control i.e. all mouths of this switch based on same switch all of the port all not have data flow out-of-date, can judge that this power supply for exchange has problem, this software relatively facilitates but the data before power-off can not be backed up, and can only give control end one prompting.
Be equipped with outside battery module, when switch normally works, power storage module is connected in parallel on the input of switch, and be in charged state always, after power-off, storage battery is started working, this ensure that the communication of switch normal data, battery-operated during this period of time in reserve time of maintenance to control end, but its cost is relatively high.
In sum, above two schemes is not suitable for wide popularization and application from the viewpoint of performance maintenance and cost control, can not meet the requirement of industrial field device stability, after switch accident power-off, still can keep the normal communication of data in the urgent need to a kind of and feed back to the switching equipment of control end.
Summary of the invention
The object of the invention is in order to overcome that the deficiencies in the prior art propose based on super capacitor back-up source two layer management type switchboard.The invention has the beneficial effects as follows and provide a after accident power-off appears in two layer management type switchboards, normal exchanges data is still kept in 30s, and remind to control end power-off, with the form that alarm relay or mail feed back, such control end can accurate orientation problem point, and can be safeguarded timely and solve.
In order to ensure that switch works normally, after waiting switch completely normally to work after the 8s that powers on, back-up source is started working, and the voltage conversion circuit formed through power supply chip LM2679SD charges to super capacitor, completes charging after general 15min.Two layer management type switchboards can not be affected normally work in charging process because based on super capacitor back-up source plate work time power less than 1W.When after accident power-off, had the support switch of back-up source still to keep normal work, now the signal feedback detected will be detected that the signal of D feeds back to control end in the mode of alarm relay or mail to CPU, CPU by testing circuit.
Accompanying drawing explanation
Accompanying drawing 1 is stereogram, wherein: [1] orders rail; [2] link plate; [3] grounding screw; [4] power supply terminal; [5] right panel; [6] top panel; [7] power supply indicator; [8] relay terminal; [9] front panel; [10] cable interface; [11] left panel; [12] lower panel.
Accompanying drawing 2 is cut-away views, wherein: [21] relay mouth; [22] back-up source lead-in wire; [23] main circuit board; [24] based on the back-up source plate of super capacitor; [25] power panel; [26] connecting line; [27] power supply terminal.
Accompanying drawing 3 is circuit theory diagrams.
Embodiment
In order to reach foregoing invention object, technical scheme of the present invention is: a kind of based on super capacitor back-up source two layer management type switchboard, comprises cabinet, is arranged on the back-up source plate based on super capacitor of cabinet inside, the back-up source connected based on super capacitor goes between with the back-up source of main power board.The described back-up source based on super capacitor comprises three parts: live part, discharge portion, test section, the described back-up source plate based on super capacitor comprises the power circuit for providing required power supply for switch, and described back-up source lead-in wire is for connecting the back-up source box main power board based on super capacitor.The described back-up source based on super capacitor comprises.
1, live part: input current flows through D2 unipolarity transient voltage suppressor diode through power supply chip LM2679SD voltage transitions, the output voltage of power supply chip is made to be 10V by configuration resistance, the low pressure obtained gives the capacitor charging of four series connection, remains such state after being full of always.Wherein D2 plays input protection effect; when preventing from discharging, the current potential of diode cathode is higher than the inspection affecting input end signal after anode potential; C10 delays charging interval electric capacity, and after the object guarantee delaying to charge powers on, the normal work of switch, prevents surge current.Just start powered on moment electric current and first flow through the voltage input end that D2 directly arrives switch, switch starts normal work, after 8S, back-up source plate starts charging, and after general 15min, electric capacity is full of, and can not affect the normal work of two layer management type switchboards in charging process.
2, discharge portion: the design is according to the function of the 25F/ 2.7V super capacitor storage power of Beijing He Zhonghuineng scientific & technical corporation, and the charging interval is short, the principle that discharge time is long and designing.The power that this two layer management type switchboard normally works is about 7W, rated voltage 10-36V, rated current 0.3-0.7A, so we select the capacitances in series of four 25F/ 2.7V to get up to form voltage is 10.8V, electric current is 5.8A.This parameter meets the demand of switch completely, when after input open circuit, the electric capacity of four series connection is started working and is namely discharged, electric current flows through D3, is that unipolar diode follows extraneous disconnection, directly to switch PCB input due to D2, now switch still normally works, until when the voltage of the back-up source output of super capacitor formation is lower than switch normal working voltage 5V, switch quits work, and general discharge process can continue 30 ~ 40s.
3, test section: when the back-up source plate that super capacitor is formed is started working, testing circuit can detect the change of low and high level and feed back to CPU, and the controller of CPU feeds back to extraneous control end in the mode of alarm relay or mail afterwards.Testing circuit is on former two layer management type switchboard dual power supply testing circuit bases, duplicate supply is detected pulse and changes power supply disconnection inspection pulse into, software is made an amendment and can reach requirement.
It is inner that back-up source plate based on super capacitor is integrated into two layer management type switchboards by the present invention, is connected, is fixed between two plates with stud by it by lead-in wire with switch, so both cost-saving, do not affect the appearance again.
Below embodiments of the invention are described in detail.
Fig. 1 is the two layer management type switchboard major part stereograms that the present invention is based on super capacitor back-up source.
This switch in Fig. 1 shown in [1] orders rail, is to design for being fixed on guide rail by switch.[2] for link plate is fixing on the wall.[3] be grounding screw.[4] be power supply terminal, access from this from external power source.[5] be right panel.[6] be top panel.[7] be power supply indicator, as long as there have external power source to access the left side to be bright, bright on the right of when CPU normally works etc.[8] be relay terminal, from then on send warning message when external power source surprisingly disconnects.[9] be front panel.[10] be the cable interface of switch.[11] be left panel; [12] be lower panel.
Follow main power board connecting line based on the back-up source of super capacitor in Fig. 2.
[27] be the power supply interface of switch.[21] be feedback information and disconnection of reporting to the police.[24] be the main functional parts that we design, it is connected with [25] by [22], and [23] are connected with [25] by [26], and it is also the core component of switch.
Normal operation principle: external power source first arrives [25] from the access of [4] mouth, through [26] to [23] after voltage transitions, then start normal work, after crossing 8s, [24] start charging, after [4] place's power-off, [24] start working by [22] to [25] once by [26] to [23].
Fig. 3 is the back-up source plate schematic diagram based on super capacitor.
Electric current enters through D2 mono-tunnel directly to switch from JP2, lead up to power supply chip LM2679SD through voltage transitions give four capacitor chargings, during electric discharge by D3 to power supply for exchange.
Claims (5)
1. provide a kind of beneficial effect to be based on back-up source two layer management type switchboard of super capacitor, after there is accident power-off in switch, in 30s, still can keep normal exchanges data, and the form can fed back with relay or mail is to control end power-off prompting message.
2. realize back-up source two layer management type switchboard based on super capacitor according to claim 1, it is characterized in that described super capacitor back-up source plate adopts power supply chip LM2679SD.
3. realize back-up source two layer management type switchboard based on super capacitor according to claim 1, it is characterized in that described super capacitor back-up source plate adopts super capacitor to be 2.7V/25F.
4. realize back-up source two layer management type switchboard based on super capacitor according to claim 1, it is characterized in that described super capacitor power panel is connected with power panel by lead-in wire.
5. according to claim 1,2,3,4, realize back-up source two layer management type switchboard based on super capacitor, it is characterized in that input current passes through lead-in wire through unipolarity transient diode D2, filter capacitor C3 to power supply chip LM2679SD, voltage after conversion charges to super capacitor 2.7V/25F, after power-off super capacitor release electricity by D3 to power supply for exchange.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310288422.9A CN104283815A (en) | 2013-07-10 | 2013-07-10 | Back-up power source two-layer managed switch based on super-capacitor |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201310288422.9A CN104283815A (en) | 2013-07-10 | 2013-07-10 | Back-up power source two-layer managed switch based on super-capacitor |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20100332896A1 (en) * | 2009-06-26 | 2010-12-30 | Dean Clark Wilson | Systems, methods and devices for backup power control in data storage devices |
| CN102467969A (en) * | 2010-11-08 | 2012-05-23 | 三星电子株式会社 | Methods of charging auxiliary power supplies in data storage devices and related devices |
| CN202997627U (en) * | 2012-12-18 | 2013-06-12 | 四川汇友电气有限公司 | Intelligent monitoring back-up power source device for super-capacitive isolation switch |
| CN103176752A (en) * | 2012-07-02 | 2013-06-26 | 晶天电子（深圳）有限公司 | Super-endurance solid-state drive with Endurance Translation Layer (ETL) and diversion of temp files for reduced Flash wear |
-
2013
- 2013-07-10 CN CN201310288422.9A patent/CN104283815A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20100332896A1 (en) * | 2009-06-26 | 2010-12-30 | Dean Clark Wilson | Systems, methods and devices for backup power control in data storage devices |
| CN102467969A (en) * | 2010-11-08 | 2012-05-23 | 三星电子株式会社 | Methods of charging auxiliary power supplies in data storage devices and related devices |
| CN103176752A (en) * | 2012-07-02 | 2013-06-26 | 晶天电子（深圳）有限公司 | Super-endurance solid-state drive with Endurance Translation Layer (ETL) and diversion of temp files for reduced Flash wear |
| CN202997627U (en) * | 2012-12-18 | 2013-06-12 | 四川汇友电气有限公司 | Intelligent monitoring back-up power source device for super-capacitive isolation switch |
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Application publication date: 20150114 |