CN1332206C - System of giving an alarm of AC power down - Google Patents
System of giving an alarm of AC power down Download PDFInfo
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- CN1332206C CN1332206C CNB031229239A CN03122923A CN1332206C CN 1332206 C CN1332206 C CN 1332206C CN B031229239 A CNB031229239 A CN B031229239A CN 03122923 A CN03122923 A CN 03122923A CN 1332206 C CN1332206 C CN 1332206C
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Abstract
The present invention relates to a system of realizing the alarm of AC power failure, which comprises a rectifying module, a wave filtering module, a main circuit voltage converting, rectifying and wave filtering module, a main circuit switch control module, an auxiliary circuit voltage converting, rectifying and wave filtering circuit, an auxiliary circuit switch control module, an AC power failure detecting module, and a main circuit and auxiliary circuit control circuit, wherein the auxiliary circuit voltage converting, rectifying and wave filtering circuit is used for converting the high-voltage DC voltage into high-frequency high-voltage voltage waves, and the waves are output by rectification and filtration; the auxiliary circuit switch control module is used for controlling the auxiliary circuit voltage conversion and the DC output voltage of the rectifying and wave filtering module; the AC power failure detecting module is used for generating a power failure alarming signal during AC power failure; a main circuit and auxiliary circuit control circuit, is used for controlling main circuit switch control module and the auxiliary circuit switch control module. On one hand, the present invention realizes the function of the alarm of AC power failure, and on the other hand, the present invention eliminates one very uncertain factor owing to the non-adoption of an accumulator cell. As a result, the present invention increases the reliability of the whole system, reduces cost and ensures the convenience of the maintenance in later period.
Description
Technical field
The present invention relates to the power supply technique of communication technical field, refer in particular to a kind of system that realizes exchanging power fail warning.
Background technology
The present ac-dc conversion system that widely applies, as the power module in the little base station of outdoor version, wherein a lot of systems are installed in the backcountry, are rural power grids owing to what link to each other with it, situation about having a power failure often occurs exchanging, cause and service disconnection that this system is directly related, and do not know that electric network power-fail still is that equipment breaks down this moment for user drawn game side personnel, if safeguard at the scene of sending someone at once, therefore waste very greatly, press for and judge whether power down of electrical network.
The present existing ac-dc conversion input 220V of system AC power, by AC/DC (ac/dc) conversion, various direct supplys are provided for various loads, it is divided into two kinds, first kind is the ac-dc conversion system that is not with back-up source, as shown in Figure 1, the alternating voltage of input is through rectification module (11), filtration module becomes stable high-voltage dc voltage after (12), at the voltage transformation rectification filtering module (13) by switch control circuit module (14) control this stable high-voltage dc voltage is transformed into the output of galvanic current pressure, the amplitude of this VD can be set by ON-OFF control circuit module (14); Second kind is the ac-dc conversion system of band back-up source, and itself and the former's difference is to be provided with back-up source in system, as has the ups power of accumulator.
Yet all there are many deficiencies in existing two kinds of ac-dc conversion systems, first kind of ac-dc conversion system is behind electric network power-fail, and total system can not be worked, owing to there is not power supply, can't realize alarm, so electric network power-fail can't be distinguished by Surveillance center or equipment damages; Second kind of ac-dc conversion system, during electric network power-fail because back-up source power supply is arranged, total system still can operate as normal in a period of time, power fail warning is realized easily, but the back-up source price is higher, difficulty is installed, reliability is not high and difficult in maintenance, especially when the power ratio of load is big, can't adopt disposable lithium ion battery, have to use rechargeable battery (as lead-acid battery, Ni-MH battery etc.), rechargeable battery can not be high temperature resistant, especially when outdoor rugged surroundings, cause the rechargeable battery life-span very short, safeguard very difficult.
Summary of the invention
The invention provides a kind of system that realizes exchanging power fail warning, can not simultaneously realize in the prior art that to solve power fail warning, cost hang down and problem easy to maintenance.
For addressing the above problem, technical scheme of the present invention is as follows:
A kind of system that realizes exchanging power fail warning includes rectification module, filtration module, main road voltage transformation rectification filtering module, main path switch control module, and wherein, this system also includes:
Bypass voltage transformation rectification filtering module is used for high-voltage dc voltage being transformed into high-frequency and high-voltage voltage ripple and exporting through rectifying and wave-filtering;
The bypass switch control module is used to control the VD of bypass voltage transformation rectification filtering module;
Exchange the detection of power loss module, be used for when exchanging power down, producing the power fail warning signal;
Main road bypass control module is used to control main path switch control module and bypass switch control module;
The high-voltage dc voltage of described filtration module output, the described main road voltage transformation rectification filtering module main road of leading up to exports load to, and another road exports load to by described bypass voltage transformation rectification filtering module bypass; And described interchange detection of power loss module links to each other with described rectification module, described interchange detection of power loss module produces the power fail warning signal when exchanging power down, and control described main path switch control module and bypass switch control module by described main road bypass control module, and described bypass voltage transformation rectification filtering module is controlled by described bypass switch control module.
This system also further includes: be used to realize main road output and bypass output isolation back and the isolation module of power supply to common load is provided, main road output and bypass output are delivered to common load through this isolation module.
Wherein, described interchange detection of power loss module is to link to each other with the output terminal of described rectification module.
Described interchange detection of power loss module will produce the power fail warning signal and directly export.
And described isolation module links to each other with described main road bypass control module.
The present invention increases by one tunnel auxiliary out-put supply in the ac-dc conversion system, when system's operate as normal, this bypass output does not provide power supply, when exchanging power down, exchange the detection of power loss module and produce the power fail warning signal at once, notice reporting is given Surveillance center, utilizes the capacitance stores energy in the ac-dc conversion system simultaneously, the bypass out-put supply that increases begins power supply to the apparatus of load that sends power fail warning signal indispensability, guarantees that the power fail warning signal can be reported to Surveillance center.A kind of ac-dc conversion system that does not have back-up source realization interchange power fail warning of the present invention, realized interchange power fail warning function on the one hand, on the other hand owing to no longer adopt accumulator, removed a very big uncertain factor like this, increased the reliability of total system, reduce cost, made later maintenance convenient.
Description of drawings
Fig. 1 is the system architecture diagram of the existing ac-dc conversion of the present invention system;
Fig. 2 realizes exchanging the system architecture diagram of the system of power fail warning for the present invention;
Fig. 3 realizes exchanging the user mode reference diagram of the system of power fail warning for the present invention.
Specific implementation
The embodiment of the invention is that example describes with the AC/DC power module in the little base station of outdoor version, and being illustrated in figure 2 as the embodiment of the invention does not have the system architecture diagram that back-up source is realized the ac-dc conversion system of interchange power fail warning; This system also includes except that including rectification module (11), filtration module (12), main road voltage transformation rectification filtering module (13), main path switch control module (14):
Bypass voltage transformation rectification filtering module (23) is used for high-voltage dc voltage being transformed into high-frequency and high-voltage voltage ripple and exporting through rectifying and wave-filtering;
Bypass switch control module (24) is used to control the VD of bypass voltage transformation rectification filtering module;
Exchange detection of power loss module (21), be used for when exchanging power down, producing the power fail warning signal;
Main road bypass control module (22) is used to control main path switch control module and bypass switch control module;
Isolation module (25) is used to realize main road output and bypass output isolation back and provides power supply to common load;
As shown in Figure 3, described isolation module (25) adopts isolating diode to realize the isolation that main road output and bypass are exported automatically, and this is the simplest way, does not need other any control circuit to participate in, and reliability is very high.The main road of present embodiment is exported one the tunnel and is directly provided power supply for high power loads such as power amplifier modules, another road links to each other by common load such as above-mentioned isolation module (25) and veneer module, transport module and optical fiber etc., and bypass output then is all to link to each other by common load such as above-mentioned isolation module (25) and veneer module, transport module and optical fiber etc.
The high-voltage dc voltage of described filtration module (12) output, described main road voltage transformation rectification filtering module (13) main road of leading up to exports high power load to, and another road exports common load to by described bypass voltage transformation rectification filtering module (23) bypass; And described interchange detection of power loss module (21) links to each other with described rectification module (11), described interchange detection of power loss module (21) produces the power fail warning signal when exchanging power down, and control described main path switch control module (14) and bypass switch control module (24) by described main road bypass control module (22), and described bypass voltage transformation rectification filtering module (23) is controlled by described bypass switch control module (24).
In the little base station of outdoor version, the power maximum of power amplifier module (31) accounts for little base station and consumes 70% of general power, if still give power amplifier module (31) power supply after exchanging power down, because the power of power amplifier module (31) is very big, will consume electric capacity energy stored in the system very soon; And begin to Surveillance center to receive alarm signal from the AC power power down, generally need the above time of 100ms, obviously this moment, the power fail warning signal did not have time enough to be reported to Surveillance center.Because the power fail warning signal is to report and do not report by power amplifier module (31) by veneer module (32), transport module (33), optical fiber (34), so only give veneer module (32), transport module (33), optical fiber (34) power supply when considering to exchange power down, do not give power amplifier module (31) power supply, like this, because the power of veneer module (32), transport module (33), optical fiber (34) etc. is less, electric capacity energy stored power-on time will have bigger prolongation in the system, can reach 100～500ms, make the power fail warning signal can be reported to Surveillance center smoothly.
When AC-input voltage just often, main road output is normal, bypass output can be turn-offed also can operate as normal, present embodiment supposes that this bypass output turn-offs.In case the situation of power down occurs exchanging, AC detection circuit module (21) notifies main road bypass control circuit (22) to close main road output at once, start bypass output, and provide the interchange power fail warning to the veneer module (32) in little base station, transport module (33), optical fiber (34) etc.Owing to after exchanging power down, closed main road output, though the power supply in the main road output is because of very big very fast being depleted of power of power amplifier module (31), power amplifier module (31) is no longer worked, but the power supply in the bypass output comprises that energy stored has all offered the common load that bypass output is connected on the middle electric capacity of filtration module (12), this common load is used to report the power fail warning signal, power is less, in addition because the effect of isolation module (25), high power load no longer consumes the power supply in the bypass output, therefore bypass output supplying time can be longer, can be reported to Surveillance center thereby guarantee to exchange the power fail warning signal.
Claims (6)
1, a kind of system that realizes exchanging power fail warning includes rectification module, filtration module, main road voltage transformation rectification filtering module, main path switch control module, it is characterized in that this system also includes:
Bypass voltage transformation rectification filtering module is used for high-voltage dc voltage being transformed into high-frequency and high-voltage voltage ripple and exporting through rectifying and wave-filtering;
The bypass switch control module is used to control the VD of bypass voltage transformation rectification filtering module;
Exchange the detection of power loss module, be used for when exchanging power down, producing the power fail warning signal;
Main road bypass control module is used to control main path switch control module and bypass switch control module;
The high-voltage dc voltage of described filtration module output, the described main road voltage transformation rectification filtering module main road of leading up to exports load to, and another road exports load to by described bypass voltage transformation rectification filtering module bypass; And described interchange detection of power loss module links to each other with described rectification module, described interchange detection of power loss module produces the power fail warning signal when exchanging power down, and control described main path switch control module and bypass switch control module by described main road bypass control module, and described bypass voltage transformation rectification filtering module is controlled by described bypass switch control module.
2, a kind of system that realizes exchanging power fail warning as claimed in claim 1, wherein, this system also further includes: be used to realize main road output and bypass output isolation back and the isolation module of power supply to common load is provided, main road output and bypass output are delivered to common load through this isolation module.
3, a kind of system that realizes exchanging power fail warning as claimed in claim 1, wherein, described interchange detection of power loss module is to link to each other with the output terminal of described rectification module.
4, a kind of system that realizes exchanging power fail warning as claimed in claim 1, wherein, described interchange detection of power loss module will produce the power fail warning signal and directly export.
5, a kind of system that realizes exchanging power fail warning as claimed in claim 2, wherein, this isolation module is realized automatically by isolating diode.
6. a kind of system that realizes exchanging power fail warning as claimed in claim 2, wherein, this isolation module links to each other with described main road bypass control module.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB031229239A CN1332206C (en) | 2003-04-23 | 2003-04-23 | System of giving an alarm of AC power down |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB031229239A CN1332206C (en) | 2003-04-23 | 2003-04-23 | System of giving an alarm of AC power down |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1540357A CN1540357A (en) | 2004-10-27 |
| CN1332206C true CN1332206C (en) | 2007-08-15 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB031229239A Expired - Fee Related CN1332206C (en) | 2003-04-23 | 2003-04-23 | System of giving an alarm of AC power down |
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| CN (1) | CN1332206C (en) |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101246198B (en) * | 2007-02-15 | 2011-03-02 | 比亚迪股份有限公司 | Electric network power-fail detection circuit |
| CN101895341B (en) * | 2010-07-23 | 2015-01-28 | 中兴通讯股份有限公司 | Terminal equipment and power failure alarm reporting method thereof |
| CN102036279A (en) * | 2010-12-06 | 2011-04-27 | 华为技术有限公司 | Alarm report method, base transceiver station and base station system |
| CN109596880A (en) * | 2018-11-28 | 2019-04-09 | 国家电网有限公司 | One kind being based on substation's alternating current-direct current down Monitor Unit system and monitoring method |
| CN109470965B (en) * | 2019-01-15 | 2023-11-10 | 浙江大邦科技有限公司 | Independent feedback monitoring system |
| CN110133361A (en) * | 2019-04-30 | 2019-08-16 | 浙江亿邦通信科技有限公司 | Power down alarm system based on low-voltage monitoring |
| CN110928735B (en) * | 2019-11-25 | 2024-04-19 | 杜杰 | Power-down arbitration bus transceiver and bus system |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4713553A (en) * | 1985-10-21 | 1987-12-15 | Motorola Inc. | Fast power-fail detector for power supplies with energy hysteresis |
| US5376920A (en) * | 1991-06-14 | 1994-12-27 | Huntleigh Technology Plc | Power fail detection circuit |
| CN2407366Y (en) * | 2000-01-10 | 2000-11-22 | 宜昌市公安局西陵区分局 | Multifunctional power transformer and line power-off alarm |
| CN2481031Y (en) * | 2001-05-14 | 2002-03-06 | 国春廷 | Multi-function power switching off alarm device |
| CN1387377A (en) * | 2001-05-18 | 2002-12-25 | 华为技术有限公司 | Power fail warning method and device for base station in mobile communication system |
-
2003
- 2003-04-23 CN CNB031229239A patent/CN1332206C/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4713553A (en) * | 1985-10-21 | 1987-12-15 | Motorola Inc. | Fast power-fail detector for power supplies with energy hysteresis |
| US5376920A (en) * | 1991-06-14 | 1994-12-27 | Huntleigh Technology Plc | Power fail detection circuit |
| CN2407366Y (en) * | 2000-01-10 | 2000-11-22 | 宜昌市公安局西陵区分局 | Multifunctional power transformer and line power-off alarm |
| CN2481031Y (en) * | 2001-05-14 | 2002-03-06 | 国春廷 | Multi-function power switching off alarm device |
| CN1387377A (en) * | 2001-05-18 | 2002-12-25 | 华为技术有限公司 | Power fail warning method and device for base station in mobile communication system |
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| CN1540357A (en) | 2004-10-27 |
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