CN202256474U - Lightning rod discharge counter possessing accurate counting function - Google Patents
Lightning rod discharge counter possessing accurate counting function Download PDFInfo
- Publication number
- CN202256474U CN202256474U CN2011203914660U CN201120391466U CN202256474U CN 202256474 U CN202256474 U CN 202256474U CN 2011203914660 U CN2011203914660 U CN 2011203914660U CN 201120391466 U CN201120391466 U CN 201120391466U CN 202256474 U CN202256474 U CN 202256474U
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- lightning rod
- discharge counter
- microcontroller
- voltage comparator
- output terminal
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Abstract
The utility model discloses a lightning rod discharge counter possessing the accurate counting function. The lightning rod discharge counter includes a photoelectric coupler, a voltage comparator, a microcontroller, and a display. The input terminal of the photoelectric coupler is connected with a signal switch contact of a big current discharge protective device on a lightning rod, and the output terminal is connected with the input terminal of the voltage comparator via a filter. The output terminal of the voltage comparator is connected with the input terminal of the microcontroller. The output terminal of the microcontroller is connected with the display. The beneficial effects are that: the volume is small, so the lightning rod discharge counter can be applied to special occasions, such as a lightning arrester in a switch cabinet; the counting precision is high, so the lightning rod discharge counter can cooperate with a GPS time device so as to provide action time material and preferably provide research foundation for workers; the lightning rod discharge counter also has the advantages of simple structure, low cost, strong electromagnetic field interference resistance, and the like.
Description
Technical field
The utility model relates to the accurate lightning rod of a kind of counting and uses discharge counter.
Background technology
Lightning arrester is a kind of device that is used for monitoring the lightning arrester discharging action with discharge counter; The volume ratio of existing discharge counter is bigger;, then be difficult to settle, and the degree of accuracy of general discharge counter is not high when being used for the lightning arrester in the switch cubicle in some special places; Make the staff be difficult to obtain the more detailed data of the work that is beneficial to, discharge like lightning arrester in that time period.
The utility model content
The purpose of the utility model promptly is to overcome the deficiency of present technology, provides a kind of lightning arrester simple in structure, that volume is less, degree of accuracy is high to use discharge counter.
The utility model is realized through following technical scheme: the accurate lightning rod of a kind of counting is used discharge counter; Comprise photoelectrical coupler, voltage comparator, microcontroller and display; The input end of described photoelectrical coupler connects the signaling switch contact of heavy-current discharge protective device on the lightning rod; Its output terminal is through the input end of a wave filter connection voltage comparator, and the output terminal of voltage comparator connects the input end of microcontroller, and the output terminal of microcontroller connects display.
Be connected with a gps clock device on the microcontroller of the utility model.
The used wave filter of the utility model is the RC low-pass filter; Used voltage comparator is the hysteresis loop comparator of anti-phase.
One end of the photodiode in the described photoelectrical coupler connects the signaling switch contact of big current protective device; The closure signal of acquired signal switch contact; The other end passes through resistance R 1 ground connection, the grounded emitter of the phototriode in the photoelectrical coupler, and current collection is signal output part very; The RC low-pass filter is that a resistance R 2 is formed with direct earth capacitance C2; The negative input end of voltage comparator connects the output of RC low-pass filter; Its positive input terminal connects comparative voltage; The output terminal of voltage comparator connects microcontroller; And be provided with the bi-directional voltage stabilizing diode D3 of a ground connection between the output terminal of voltage comparator and the microcontroller, be used for voltage stabilizing and pressure-sensitive protection.
The principle of work of the utility model is: when lightning voltage or switching overvoltage are passed through lightning arrester; The signaling switch closing of contact of big current protective device on the lightning arrester; At this moment the receiving end of photoelectrical coupler receives electric signal; And high level signal is changed into low level signal output; Level signal is transferred to microprocessor after RC low-pass filter and voltage comparator processing, microprocessor internal is provided with an INT interrupt routine and is used for discharge time is added up; Microprocessor also can store the time that discharge time and gps time device provide immediately, and last microprocessor can send to the corresponding time of discharge time that stores and discharge simultaneously and supply the staff to check on the display.
The beneficial effect of the utility model is: volume is less, can be used for the lightning arrester in some special occasions such as the switch cubicle; The counting degree of accuracy is high, cooperates with the gps time device, and lightning arrester data actuation time can be provided, and for staff's research foundation is provided better; Advantage simple in structure, that cost is low and the anti-electromagnetic field interference performance is strong that the utility model also has.
Description of drawings
Fig. 1 is the structured flowchart of the utility model;
Fig. 2 is the circuit structure diagram of the utility model.
Embodiment
Below in conjunction with accompanying drawing the utility model is done further to specify:
Like Fig. 1, shown in Figure 2; The accurate lightning rod of a kind of counting is used discharge counter; Comprise photoelectrical coupler, voltage comparator, microcontroller and display, the input end of described photoelectrical coupler connects the signaling switch contact of heavy-current discharge protective device on the lightning rod, and its output terminal connects the input end of voltage comparator through a wave filter; The output terminal of voltage comparator connects the input end of microcontroller, and the output terminal of microcontroller connects display.
Be connected with a gps clock device on the microcontroller of the utility model.
The used wave filter of the utility model is the RC low-pass filter, is used for more isolated residual high level signals; Used voltage comparator is the hysteresis loop comparator of anti-phase, is used to resist the undesired signal that comes from the outside.
One end of the photodiode in the described photoelectrical coupler connects the signaling switch contact of heavy-current discharge protective device; The closure signal of acquired signal switch contact; The other end is through resistance R 1 ground connection; The grounded emitter of the phototriode in the photoelectrical coupler, current collection is signal output part very; The RC low-pass filter is that a resistance R 2 is formed with direct earth capacitance C2; The negative input end of voltage comparator connects the output of RC low-pass filter; Its positive input terminal connects comparative voltage; The output terminal of voltage comparator connects microcontroller; And be provided with the bi-directional voltage stabilizing diode D3 of a ground connection between the output terminal of voltage comparator and the microcontroller, be used for voltage stabilizing and pressure-sensitive protection.
The principle of work of the utility model is: when lightning voltage or switching overvoltage are passed through lightning arrester; The signaling switch closing of contact of heavy-current discharge protective device on the lightning arrester; At this moment the receiving end of photoelectrical coupler collects electric signal; And high level signal is changed into low level signal output; Level signal is transferred to microprocessor after RC low-pass filter and voltage comparator processing, microprocessor internal is provided with an INT interrupt routine and is used for discharge time is added up; Microprocessor stores the time that discharge time and gps time device provide immediately, and last microprocessor can send to the corresponding time of discharge time that stores and discharge simultaneously and supply the staff to check on the display.
Claims (4)
1. the accurate lightning rod of counting is used discharge counter; It is characterized in that: comprise photoelectrical coupler, voltage comparator, microcontroller and display; The input end of described photoelectrical coupler connects the signaling switch contact of heavy-current discharge protective device on the lightning rod; Its output terminal is through the input end of a wave filter connection voltage comparator, and the output terminal of voltage comparator connects the input end of microcontroller, and the output terminal of microcontroller connects display.
2. the accurate lightning rod of a kind of counting according to claim 1 is used discharge counter, it is characterized in that: be connected with a gps clock device on the described microcontroller.
3. the accurate lightning rod of a kind of counting according to claim 1 is used discharge counter, and it is characterized in that: described wave filter is the RC low-pass filter.
4. the accurate lightning rod of a kind of counting according to claim 1 is used discharge counter, and it is characterized in that: described voltage comparator is the hysteresis loop comparator of anti-phase.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203914660U CN202256474U (en) | 2011-10-14 | 2011-10-14 | Lightning rod discharge counter possessing accurate counting function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203914660U CN202256474U (en) | 2011-10-14 | 2011-10-14 | Lightning rod discharge counter possessing accurate counting function |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202256474U true CN202256474U (en) | 2012-05-30 |
Family
ID=46117693
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011203914660U Expired - Fee Related CN202256474U (en) | 2011-10-14 | 2011-10-14 | Lightning rod discharge counter possessing accurate counting function |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202256474U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103048528A (en) * | 2011-10-14 | 2013-04-17 | 四川蓝迅宝迩电子科技有限公司 | Precisely counting discharge counter for lightning rod |
| CN103529282A (en) * | 2012-07-06 | 2014-01-22 | 四川蓝讯宝迩电子科技有限公司 | Lightning rod discharge counter with automatic memory |
-
2011
- 2011-10-14 CN CN2011203914660U patent/CN202256474U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103048528A (en) * | 2011-10-14 | 2013-04-17 | 四川蓝迅宝迩电子科技有限公司 | Precisely counting discharge counter for lightning rod |
| CN103529282A (en) * | 2012-07-06 | 2014-01-22 | 四川蓝讯宝迩电子科技有限公司 | Lightning rod discharge counter with automatic memory |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| 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: 20120530 Termination date: 20121014 |