CN2563626Y - Power cut identification and power cut recording transformer monitor - Google Patents
Power cut identification and power cut recording transformer monitor Download PDFInfo
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- CN2563626Y CN2563626Y CN 02223934 CN02223934U CN2563626Y CN 2563626 Y CN2563626 Y CN 2563626Y CN 02223934 CN02223934 CN 02223934 CN 02223934 U CN02223934 U CN 02223934U CN 2563626 Y CN2563626 Y CN 2563626Y
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Abstract
A power cut identification and power cut recording transformer monitor is characterized in that: a power cut backup power is connected with the input terminal of a DC voltage stabilizing circuit; a power cut testing circuit is connected with the I/O interface of an embedded computer control circuit. The power cut testing circuit mainly comprises a voltage comparator, wherein the input terminal of the power cut testing circuit is connected with the output terminal of a rectification filter circuit, the comparison terminal of the power cut testing circuit is connected with the output terminal of the DC voltage stabilizing circuit, and the output terminal of the power cut testing circuit is connected with the I/O interface of the embedded computer control circuit; the power cut backup power consists of a charging circuit, a current condenser, and a discharging control circuit, which are connected in order, wherein the input terminal of the power cut backup power is connected with the output terminal of the rectification filter circuit, the triggering terminal of the power cut backup power is connected with the I/O interface of the embedded computer control circuit, and the output terminal of the power cut backup power is connected with the input terminal of the DC voltage stabilizing circuit; a host computer can carry out power cut identification or failure recognition of the transformer monitor through a special software program within T seconds, thereby facilitating detecting and trouble shooting, and ensuring the high-efficiency run of a power network.
Description
Technical field: the utility model relates to the power monitoring field, relates in particular to the improvement of the fault judgement technology in the platform district transformer control device.
Background technology: in platform district transformer control device, host computer and on-the-spot embedded computer control circuit are asked by communication channel and are transmitted information data, realize monitoring; But produce abnormal situation of communicate by letter between host computer and on-the-spot embedded computer control circuit sometimes, possible reason has two big classes, the one, and because of the fault of hardware own promptly: damage of platform district transformer control device or communication channel are not smooth; The 2nd, because have a power failure for the platform district transformer of this district's transformer control device power supply.And existing district's transformer control device lacks necessary structural support, can not make host computer point out above-mentioned two kinds of failure causes distinctively, thereby brings very burden for follow-up fault eliminating, maintenance construction, has influence on the efficient operation of network system.
Summary of the invention: at the above-mentioned shortcoming of prior art, technical problem to be solved in the utility model is will provide a kind of can point out the power failure identification of communication failure reason and the power failure formula transformer control device of checking meter to host computer.
For this reason, power failure identification of the present utility model and the power failure formula transformer control device of checking meter, be connected with platform district transformer (platform change) outside it, interior by connecting to form: that outside platform district transformer (platform change) power supply is coupled to internal transformer (interior change) next in the internal circuit with lower member such as preface, thereafter current rectifying and wave filtering circuit has been linked in sequence, direct current regulation circuit and embedded computer control circuit, and the interface of embedded computer control circuit is connected with the interface of host computer through communication channel, it is characterized in that: also be connected with the outage back-up source at described direct current regulation circuit input end; On the I/O of described embedded computer control circuit interface, then be connected with power cut detection circuit.
Described power cut detection circuit mainly is to be made of voltage comparator, its input end is connected with the output terminal of current rectifying and wave filtering circuit, it is relatively held with the output terminal of direct current regulation circuit and is connected, and its output terminal is connected with the I/O interface of embedded computer control circuit; The input end of described outage back-up source is connected with the output terminal of current rectifying and wave filtering circuit, and its trigger end is connected with the I/O interface of embedded computer control circuit, and its output terminal is connected with the input end of direct current regulation circuit.
Described outage back-up source is to be connected to form in regular turn by charging circuit, electrical storage device, charge/discharge control circuit; Wherein the input end of charging circuit is connected with the output terminal of current rectifying and wave filtering circuit, and the output terminal of charging circuit is connected with the electrical storage device electrode; The input end of charge/discharge control circuit is connected with the electrical storage device electrode, and the trigger end of charge/discharge control circuit is connected with the I/O interface of embedded computer control circuit, and the output terminal of charge/discharge control circuit is connected with the input end of direct current regulation circuit.
Described electrical storage device is accumulator or farad level large value capacitor.
Described host computer is made power failure or Fault Identification by following software control procedure to described transformer control device at T in second:
Host computer is once powered to the inquiry of embedded computer control circuit at the beginning at period T i+1 and is originated;
As obtain feedback information, host computer prompting and power supply source when writing down Ti+1 working properly by query station district transformer control device;
As not obtaining feedback information, whether the power supply source that host computer is further checked oneself in the one-period Ti belongs to the interior power supply that becomes;
For certainly, host computer prompting order foreground partition transformer control device job failure, platform become power supply as Query Result, and the power supply source when being recorded as Ti+1;
As Query Result for negating, working properly, the back-up source power supply of host computer prompting order foreground partition transformer control device, and the power supply source when being recorded as Ti+1.
Owing to adopted power cut detection circuit, the structure of the automatic back-up source of embedded computer control and the ad hoc software of host computer, of the present utility model district's transformer control device allows the T of host computer after fault to originate to the last power supply of on-the-spot embedded computer inquiry in cycle second, no matter whether inquiry is or obtain the result, host computer will be in conjunction with self stored historical power supply source, show quickly, distinguish the reason that communication failure produces, be convenient to the technician and further search hardware fault or outage reason, the maintenance of arrangement personnel inspection, fix a breakdown, thereby ensure that effectively electrical network efficiently moves;
The utility model is simple in structure, enforcement is easy, be beneficial in power industry and popularize in an all-round way.
Description of drawings: now in conjunction with the accompanying drawings the utility model is explained.
Fig. 1 is the power failure of the present utility model identification and the theory diagram of formula transformer control device of checking meter that has a power failure.
Fig. 2 is the circuit connection diagram of embodiment of the present utility model.
Fig. 3 is the software principle block diagram of host computer of the present utility model.
Embodiment: as shown in Figure 1: power failure identification of the present utility model and the power failure formula transformer control device of checking meter, be connected with platform district transformer (platform change) 1 outside it, interior by connecting to form: that outside platform district transformer (platform change) 1 power supply is coupled to internal transformer (interior change) 2 next in the internal circuit with lower member such as preface, thereafter current rectifying and wave filtering circuit 3 has been linked in sequence, direct current regulation circuit 4 and embedded computer control circuit 5, and the interface of embedded computer control circuit 5 is connected with the interface of host computer 6 through communication channel, it is characterized in that: also be connected with outage back-up source 7 at described direct current regulation circuit 4 input ends; On the I/O of described embedded computer control circuit 5 interface, then be connected with power cut detection circuit 8.
Described power cut detection circuit 8 mainly is to be made of voltage comparator, its input end is connected with the output terminal of current rectifying and wave filtering circuit 3, it is relatively held with the output terminal of direct current regulation circuit 4 and is connected, and its output terminal is connected with the I/O interface of embedded computer control circuit 5; The input end of described outage back-up source 7 is connected with the output terminal of current rectifying and wave filtering circuit 3, and its trigger end is connected with the I/O interface of embedded computer control circuit 5, and its output terminal is connected with the input end of direct current regulation circuit 4.
As shown in Figure 2: described power cut detection circuit 8 mainly is to be made of voltage comparator G3, the input end of G3 is connected with the output terminal of current rectifying and wave filtering circuit 3 by divider resistance R5, R6, relatively holding by divider resistance R7, R8 of G3 is connected with the output terminal of direct current regulation circuit 4, and the output terminal of G3 is connected with the I/O interface of embedded computer control circuit 5.
Described outage back-up source 7 is to comprise: the charging circuit that R1 and D1 are in series, the electrical storage device C that farad level capacitor constitutes, the switching regulator charge/discharge control circuit that triode G1, G2 directly are coupled to form by R3, R4.Wherein the charging circuit that is in series of R1 and D1 is connected with the output terminal of current rectifying and wave filtering circuit 3 by R1 as the input end of outage back-up source 7, is connected with farad electrode of grade capacitor storage device C by the D1 output terminal; The switching regulator charge/discharge control circuit is connected with the electrode of farad level capacitor storage device C by the input end of the collector formation of triode G1, the base stage of triode G2 constitutes the trigger end of electric back-up source 7, be connected with the I/O interface of embedded computer control circuit 5 by R2, the emitter of triode G1 is as the output terminal of outage back-up source 7, is connected with input end as the LM7805CT chip of direct current regulation circuit 4 by diode D3; (wherein D2 is an isolating diode).
As shown in Figure 3: described host computer 6 is made power failure or Fault Identification by following software control procedure to described transformer control device at T in second:
As obtaining feedback information, host computer 6 promptings are working properly and write down T by query station district transformer control device
I+1The time power supply source;
As not obtaining feedback information, whether the power supply source that host computer 6 is further checked oneself in the one-period Ti belongs to interior 3 power supplies that become;
For affirming, host computer 6 prompting order foreground partition transformer control device job failures, platform become 1 power supply, and are recorded as T as Query Result
I+1The time power supply source;
For negative, host computer 6 prompting order foreground partition transformer control devices are working properly, back-up source 7 is powered, and is recorded as T as Query Result
I+1The time power supply source.
Below in conjunction with accompanying drawing the utility model principle of work is further explained:
When platform district transformer 1 is working properly, in become 2 to current rectifying and wave filtering circuit 3 normal power supplies, the charging circuit that R1 and D1 are in series is as the input end of outage back-up source 7, C charges to farad level capacitor storage device, even and guarantee after platform district transformer (platform change) 1 has a power failure, platform district transformer control device can operate as normal time greater than host computer 6 to embedded computer control circuit 5 inquiries period T seconds once: promptly have a power failure when platform becomes 1,8 winks of power cut detection circuit are about to power cut signal and are transferred to embedded computer control circuit 5, embedded computer control circuit 5 triggers the G2 base stage of back-up source 7 immediately, make back-up source 7 be no less than T second to 5 power supplies of embedded computer control circuit by direct current regulation circuit 4, according to described software program, finish the inquiry of being done to embedded computer control circuit 5 until host computer 6; If inquiry has no resolution, host computer 6 accesses the power supply that is stored in self and comes source record, judges to provide failure cause.
Claims (4)
1, a kind of power failure identification and the power failure formula transformer control device of checking meter, be connected with platform district transformer (platform change) outside it, interior by connecting to form: that outside platform district transformer (platform change) power supply is coupled to internal transformer (interior change) next in the internal circuit with lower member such as preface, thereafter current rectifying and wave filtering circuit has been linked in sequence, direct current regulation circuit and embedded computer control circuit, and the interface of embedded computer control circuit is connected with the interface of host computer through communication channel, it is characterized in that: be connected with the outage back-up source at described direct current regulation circuit input end; Be connected with power cut detection circuit at the I/O of described embedded computer control circuit interface.
2, power failure identification as claimed in claim 1 and the power failure formula transformer control device of checking meter, it is characterized in that: described power cut detection circuit mainly is to be made of voltage comparator, its input end is connected with the output terminal of current rectifying and wave filtering circuit, it is relatively held with the output terminal of direct current regulation circuit and is connected, and its output terminal is connected with the I/O interface of embedded computer control circuit; The input end of described outage back-up source is connected with the output terminal of current rectifying and wave filtering circuit, and its trigger end is connected with the I/O interface of embedded computer control circuit, and its output terminal is connected with the input end of direct current regulation circuit.
3, power failure identification as claimed in claim 1 or 2 and the power failure formula transformer control device of checking meter, it is characterized in that: described outage back-up source is to be connected to form in regular turn by charging circuit, electrical storage device, charge/discharge control circuit; Wherein the input end of charging circuit is connected with the output terminal of current rectifying and wave filtering circuit, and the output terminal of charging circuit is connected with the electrical storage device electrode; The input end of charge/discharge control circuit is connected with the electrical storage device electrode, and the trigger end of charge/discharge control circuit is connected with the I/O interface of embedded computer control circuit, and the output terminal of charge/discharge control circuit is connected with the input end of direct current regulation circuit.
4, power failure identification as claimed in claim 3 and the power failure formula transformer control device of checking meter is characterized in that: described electrical storage device is accumulator or farad level large value capacitor.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN 02223934 CN2563626Y (en) | 2002-04-26 | 2002-04-26 | Power cut identification and power cut recording transformer monitor |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN 02223934 CN2563626Y (en) | 2002-04-26 | 2002-04-26 | Power cut identification and power cut recording transformer monitor |
Publications (1)
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CN2563626Y true CN2563626Y (en) | 2003-07-30 |
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CN 02223934 Expired - Fee Related CN2563626Y (en) | 2002-04-26 | 2002-04-26 | Power cut identification and power cut recording transformer monitor |
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Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN109963394A (en) * | 2018-07-12 | 2019-07-02 | 青岛亿联客信息技术有限公司 | A kind of flash switch detection circuit and Intelligent lamp |
CN111707962A (en) * | 2020-08-20 | 2020-09-25 | 上海南麟电子股份有限公司 | Alternating current detection circuit |
-
2002
- 2002-04-26 CN CN 02223934 patent/CN2563626Y/en not_active Expired - Fee Related
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN109963394A (en) * | 2018-07-12 | 2019-07-02 | 青岛亿联客信息技术有限公司 | A kind of flash switch detection circuit and Intelligent lamp |
CN111707962A (en) * | 2020-08-20 | 2020-09-25 | 上海南麟电子股份有限公司 | Alternating current detection circuit |
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C14 | Grant of patent or utility model | ||
GR01 | Patent grant | ||
C17 | Cessation of patent right | ||
CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20030730 |