CN202815094U - Grounding resistance analysis device - Google Patents
Grounding resistance analysis device Download PDFInfo
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- CN202815094U CN202815094U CN201220475754.9U CN201220475754U CN202815094U CN 202815094 U CN202815094 U CN 202815094U CN 201220475754 U CN201220475754 U CN 201220475754U CN 202815094 U CN202815094 U CN 202815094U
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Abstract
The utility model discloses a grounding resistance analysis device, which comprises a processor as well as a grounding resistance detection circuit, a temperature and humidity detection circuit and a display circuit which are connected with the processor. According to the utility model, both detection on the surrounding environment and intelligent analysis of grounding resistance are realized, and the safety of the grounding resistance analysis device is greatly improved. Moreover, the grounding resistance analysis device has good lightning protection effect.
Description
Technical field
The utility model relates to a kind of stake resistance analytical equipment, in particular a kind of stake resistance analytical equipment with environment monitoring function.
Background technology
The grounding resistance of various device and structures is electric power, railway, petrochemical industry, an important technology index of the industry lightning protection demands such as communication, every profession and trade also has very clear and definite requirement to grounding resistance, grounding resistance is very large on the lightning protection effect impact of equipment and structures, so at present a lot of to the Testing Technology Study of stake resistance, the method of testing of stake resistance, testing apparatus is also various, if any megger formula earth resistance tester, the digital earth resistance tester, jaw type earth resistances etc. also have online and non-online earth resistance tester etc.
But present earth resistance tester only is test to grounding resistance to the test of stake resistance, and the point of fixity stake resistance is affected by soil resistivity in actual applications, and soil resistivity is subjected to again the impact of soil moisture, temperature etc.As everyone knows, the humidity of soil increases when raining, and stake resistance can diminish, and high temperature is without rainy day gas for a long time, and the humidity of soil reduces, temperature rising stake resistance can obviously become large.And the intellectual analysis to the stake resistance resistance in the existing method of testing is few.Stake resistance is changed the lightning protection effect that causes analyze inconvenience, take the effect of counter-measure and the loss of minimizing damage to crops caused by thunder little to the grounding resistance variation that every profession and trade causes according to surrounding environment change.
In addition, existing earth resistance device self is not enough to the protection of thunder and lightning, during as online earth resistance, damaged by thunder and lightning.
Therefore, prior art has yet to be improved and developed.
The utility model content
In view of above-mentioned the deficiencies in the prior art, the purpose of this utility model is to provide a kind of have the stake resistance analytical equipment of environment monitoring function and the analytical approach of stake resistance.
The technical scheme that the utility model technical solution problem adopts is as follows:
A kind of stake resistance analytical equipment with environment monitoring function, wherein, described stake resistance analytical equipment comprises:
One voltage signal and current signal for detection of stake resistance, and the voltage signal that detects and current signal carried out filtering and amplify and process, and the resistance value of calculating stake resistance, and described resistance value is sent to the stake resistance testing circuit that processor carries out analyzing and processing;
One is used in real time the humiture of stake resistance surrounding soil is detected, and the humiture testing circuit that the temperature value that detects and humidity value are sent to the processor analyzing and processing;
One is used for respectively the resistance value of stake resistance that described stake resistance testing circuit is sent and temperature value and the humidity value of the stake resistance surrounding soil that described humiture testing circuit sends carries out analyzing and processing, draw change in resistance curve, temperature variation curve and moisture curve, and change in resistance curve, temperature variation curve and moisture curve are sent to display circuit show, according to the variation relation of change in resistance curve, temperature variation curve and moisture curve, provide the processor of corresponding processing policy simultaneously;
One for the display circuit that shows change in resistance curve, temperature variation curve and moisture curve that described processor sends;
Wherein, described processor links to each other with display circuit with described stake resistance testing circuit, humiture testing circuit respectively.
Described stake resistance analytical equipment with environment monitoring function, wherein, described stake resistance testing circuit also comprises:
Described stake resistance testing circuit also comprises:
Be used for to gather voltage signal and the current signal of stake resistance, and described voltage signal and current signal are sent to the stake resistance signal acquisition circuit of stake resistance signal filter circuit;
Voltage signal and current signal for the stake resistance that described stake resistance signal acquisition circuit is sent carry out the filtering processing, filter out the stake resistance filtering circuit of the clutter in described voltage signal and the current signal;
Be used for the described voltage signal after the stake resistance filtering circuit filtering processing and current signal are carried out the A/D conversion and amplify the stake resistance amplifying circuit of processing.
Described stake resistance analytical equipment with environment monitoring function, wherein, described processor also comprises the regulon that carries out drift correction for temperature value and humidity value to the resistance value of described stake resistance, described stake resistance surrounding soil.
Described stake resistance analytical equipment with environment monitoring function, wherein, described stake resistance analytical equipment also comprises for communicating with supervisory system, sends exceptional instructions to described supervisory system, provides the telecommunication circuit of prompting message.
Described stake resistance analytical equipment with environment monitoring function wherein, is stated the stake resistance analytical equipment and is also comprised for when the resistance value of stake resistance surpasses default Standard resistance range, sends the warning circuit of alerting signal.
Described stake resistance analytical equipment with environment monitoring function, wherein, described stake resistance analytical equipment also comprises for when thunder and lightning occurs, and cuts off thunder and lightning enters described stake resistance analytical equipment from power supply and described stake resistance testing circuit thunder and lightning buffer circuit.
Stake resistance analytical equipment with environment monitoring function provided by the utility model has not only been realized the detection to surrounding environment, has also realized the intelligent analysis to stake resistance, has greatly improved the security of stake resistance analytical equipment.And this stake resistance analytical equipment has higher lightning protection effect.。
Description of drawings
Fig. 1 is the structural representation of the stake resistance analytical equipment with environment monitoring function that provides of the utility model.
Fig. 2 is the structural representation of a preferred embodiment of the stake resistance analytical equipment with environment monitoring function that provides of the utility model.
Fig. 3 is the structural representation of the another preferred embodiment of the stake resistance analytical equipment with environment monitoring function that provides of the utility model.
Fig. 4 carries out the method flow diagram that stake resistance is analyzed by the described stake resistance analytical equipment with environment monitoring function of Fig. 1.
Embodiment
The utility model provides a kind of stake resistance analytical equipment with environment monitoring function, and is clearer, clear and definite for making the purpose of this utility model, technical scheme and effect, referring to the accompanying drawing examples the utility model further described.Should be appreciated that specific embodiment described herein only in order to explaining the utility model, and be not used in restriction the utility model.
Referring to Fig. 1, Fig. 1 is the structural representation of the stake resistance analytical equipment with environment monitoring function that provides of the utility model, and described stake resistance analytical equipment comprises: processor 10 and with the stake resistance testing circuit 20, humiture testing circuit 30 and the display circuit 40 that link to each other with described processor 10 respectively.
Particularly, described processor 10 is preferably single-chip microcomputer or DSP, be mainly used in the initialization setting to date, time, earth resistance drift correction value, and control described stake resistance testing circuit 20, humiture testing circuit 30 and display circuit 40, and the data analysis that stake resistance testing circuit 20, humiture testing circuit 30 send is processed.
Described stake resistance testing circuit 20 is used for the steering order of receiving processor 10, detect voltage signal and the current signal of stake resistance, and the voltage signal that detects and current signal carried out filtering and amplify and process, and the resistance value of calculating stake resistance, and described resistance value is sent to processor 10 carries out analyzing and processing.
Further, as shown in Figure 2, stake resistance testing circuit 20 also comprises stake resistance signal acquisition circuit 21, stake resistance filtering circuit 22 and stake resistance amplifying circuit 23, wherein, the steering order that stake resistance testing circuit 21 sends by receiving processor 10, this steering order is the earth resistance pumping signal.The earth resistance pumping signal comprises voltage excitation signals and current excitation signal, after receiving the earth resistance pumping signal, earth resistance circuit 20 starts, gather voltage signal and the current signal of stake resistance, voltage signal and the current signal of the stake resistance that gathers are sent to stake resistance filtering circuit 22, carry out filtering by stake resistance filtering circuit 22 and process, effectively filtering interference noise wherein.Carry out the A/D conversion and amplify processing through 23 pairs of voltage signals of stake resistance amplifying circuit and current signal more afterwards.
Described humiture testing circuit 30 detects the humiture of stake resistance surrounding soil in real time, simultaneously detected temperature-humidity signal is carried out the A/D conversion and amplified processing, obtain concrete temperature value and humidity value, and temperature value and the humidity value that detects is sent to processor 10 analyzing and processing.
When processor 10 is processed at the data analysis that stake resistance testing circuit 20, humiture testing circuit 30 are sent, understand the resistance value of the stake resistance that sends respectively according to them, draw the change in resistance curve of stake resistance, and temperature value and the humidity value of the stake resistance surrounding soil of described humiture testing circuit 30 transmissions, draw temperature variation curve and moisture curve.In order to improve the accuracy of resistance value, temperature value and humidity value, also be provided with the regulon (among the figure for illustrating) that these data is carried out drift correction in the processor 10, detect error in order to reduce, improve the accuracy of analyzing.
As shown in Figure 3, the stake resistance analytical equipment that the utility model provides also comprises power supply 60, data storage circuitry 80, telecommunication circuit 90, warning circuit 110, key circuit 70 and thunder and lightning buffer circuit 100, wherein, power supply 60 is mainly the stake resistance analytical equipment electric power supply is provided; The resistance value of the stake resistance that the storage of collected that is used for data storage circuitry 80 arrives, the humiture value of surrounding soil, and according to the resistance value of the stake resistance that collects, change in resistance curve, temperature variation curve and moisture curve etc. that the humiture value of surrounding soil is drawn; Telecommunication circuit 90 is used for communicating with supervisory system, and communication mode is wired or wireless, is convenient to derive from data storage circuitry the data recording of storage, judges in order to further analyze; Warning circuit 110 is used for when the resistance value of stake resistance exceeds predefined default Standard resistance range, send exceptional instructions by telecommunication circuit 90 to supervisory system, provide alerting signal, to remind this locality or remote worker in time to process, prevent the thunderstorm hour damage equipment, cause damage.Key circuit 70 is mainly used in sending the instruction of the routine analyzer that enters stake resistance to processor 10 by receiving user's button operation.Thunder and lightning buffer circuit 100 also is used for when thunder and lightning occurs, and the blocking-up thunder and lightning is from power supply, test pole, interpole.The passages such as stake resistance testing circuit enter the stake resistance analytical equipment, prevent that thunder and lightning from causing damage to device, improve the lightning protection ability of device.
The utility model carries out the method that stake resistance is analyzed by above-mentioned stake resistance analytical equipment with environment monitoring function, as shown in Figure 4, may further comprise the steps:
The instruction of step S100, stake resistance testing circuit receiving processor, begin to detect voltage signal and the current signal of stake resistance, the voltage signal and the current signal that detect are carried out filtering and amplify processing, calculate the resistance value of stake resistance, and just described resistance value is sent to processor and carries out analyzing and processing;
Step S200, described humiture testing circuit detect the humiture of stake resistance surrounding soil, and temperature value and the humidity value that detects is sent to the processor analyzing and processing;
The resistance value of step S300, processor analyzing and processing stake resistance, the change in resistance curve of drafting stake resistance; And temperature value and the humidity value of analysis grounding resistance surrounding soil, draw temperature variation curve and moisture curve;
Step S400, processor provide corresponding processing policy according to the relation of described change in resistance curve, temperature variation curve and moisture curve, and described change in resistance curve, temperature variation curve and moisture curve and processing policy are sent to the display circuit demonstration.
Wherein, when using for the first time, processor is to the initialization setting of date, time, earth resistance drift correction value, and setting test period and test duration.Then open routine analyzer to stake resistance when the test duration, processor sends the earth resistance pumping signal, the stake resistance Acquisition Circuit starts, gather voltage signal and the current signal of stake resistance, and through the effective filtering interfering clutter of stake resistance filtering circuit, A/D conversion and signal that the stake resistance amplifying circuit carries out signal amplify, simultaneously, the work of humiture testing circuit, gather the humiture of stake resistance surrounding soil, and carrying out signal A/D conversion and amplification, these signals enter processor and again carry out the signal processing, for example: to grounding resistance, temperature value and humidity value carry out drift correction etc.
In step S300, after processor was finished dealing with to data, meeting log-on data memory circuit was stored in the data storage circuitry detecting date, time, grounding resistance, temperature value, humidity value and their curve map, makes things convenient for subsequent query and analysis.
And when grounding resistance is unusual, processor can start warning circuit, carry out sound and light alarm, remind local staff in time to dispose, when preventing the thunder and lightning generation equipment is caused damage, can certainly connect supervisory system by telecommunication circuit, by sending exceptional instructions to supervisory system, notify the staff in time to process.
When needs are transferred data analysis from data storage circuitry, can the data in the data storage circuitry be exported to External memory equipment by the communication interface of telecommunication circuit.The staff can also inquire about the data in the data memory circuit, the input inquiry condition, and such as date, time, grounding resistance scope etc., Query Result can according to condition be inquired about and show to the stake resistance analytical equipment in display circuit.The interactivity of lifting gear.
Preferably, when the stake resistance analytical equipment was not operated for a long time, device can enter park mode automatically, to reduce electric quantity consumption.Certainly when arriving or have the staff to operate, stops the test duration dormancy.
In sum, the stake resistance analytical equipment with environment monitoring function that the utility model provides and the analytical approach of stake resistance, by to the resistance value of stake resistance and the collection of ambient temperature value and humidity value, and draw and analysis resistance analytic curve, temperature analysis curve and psychrometrc analysis curve, the variation relation that effectively reflects resistance and humiture, and can provide corresponding processing policy according to this variation relation, not only realized the detection to surrounding environment, also realize the intelligent analysis to stake resistance, greatly improved the security of device.
Should be understood that; application of the present utility model is not limited to above-mentioned giving an example; for those of ordinary skills, can be improved according to the above description or conversion, all these improvement and conversion all should belong to the protection domain of the utility model claims.
Claims (6)
1. the stake resistance analytical equipment with environment monitoring function is characterized in that, described stake resistance analytical equipment comprises:
One voltage signal and current signal for detection of stake resistance, and the voltage signal that detects and current signal carried out filtering and amplify and process, and the resistance value of calculating stake resistance, and described resistance value is sent to the stake resistance testing circuit that processor carries out analyzing and processing;
One is used in real time the humiture of stake resistance surrounding soil is detected, and the humiture testing circuit that the temperature value that detects and humidity value are sent to the processor analyzing and processing;
One is used for respectively the resistance value of stake resistance that described stake resistance testing circuit is sent and temperature value and the humidity value of the stake resistance surrounding soil that described humiture testing circuit sends carries out analyzing and processing, draw change in resistance curve, temperature variation curve and moisture curve, and change in resistance curve, temperature variation curve and moisture curve are sent to display circuit show, according to the variation relation of change in resistance curve, temperature variation curve and moisture curve, provide the processor of corresponding processing policy simultaneously;
One for the display circuit that shows change in resistance curve, temperature variation curve and moisture curve that described processor sends;
Wherein, described processor links to each other with display circuit with described stake resistance testing circuit, humiture testing circuit respectively.
2. the stake resistance analytical equipment with environment monitoring function according to claim 1 is characterized in that, described stake resistance testing circuit also comprises:
Be used for to gather voltage signal and the current signal of stake resistance, and described voltage signal and current signal are sent to the stake resistance signal acquisition circuit of stake resistance signal filter circuit;
Voltage signal and current signal for the stake resistance that described stake resistance signal acquisition circuit is sent carry out the filtering processing, filter out the stake resistance filtering circuit of the clutter in described voltage signal and the current signal;
Be used for the described voltage signal after the stake resistance filtering circuit filtering processing and current signal are carried out the A/D conversion and amplify the stake resistance amplifying circuit of processing.
3. the stake resistance analytical equipment with environment monitoring function according to claim 1, it is characterized in that described processor also comprises the regulon that carries out drift correction for temperature value and humidity value to the resistance value of described stake resistance, described stake resistance surrounding soil.
4. the stake resistance analytical equipment with environment monitoring function according to claim 1, it is characterized in that, described stake resistance analytical equipment also comprises for communicating with supervisory system, sends exceptional instructions to described supervisory system, provides the telecommunication circuit of prompting message.
5. the stake resistance analytical equipment with environment monitoring function according to claim 1 is characterized in that, described stake resistance analytical equipment also comprises for when the resistance value of stake resistance surpasses default Standard resistance range, sends the warning circuit of alerting signal.
6. the stake resistance analytical equipment with environment monitoring function according to claim 5, it is characterized in that, described stake resistance analytical equipment also comprises for when thunder and lightning occurs, and cuts off thunder and lightning enters described stake resistance analytical equipment from power supply and described stake resistance testing circuit thunder and lightning buffer circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201220475754.9U CN202815094U (en) | 2012-09-18 | 2012-09-18 | Grounding resistance analysis device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201220475754.9U CN202815094U (en) | 2012-09-18 | 2012-09-18 | Grounding resistance analysis device |
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| Publication Number | Publication Date |
|---|---|
| CN202815094U true CN202815094U (en) | 2013-03-20 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201220475754.9U Expired - Lifetime CN202815094U (en) | 2012-09-18 | 2012-09-18 | Grounding resistance analysis device |
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| CN (1) | CN202815094U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105277796A (en) * | 2015-10-10 | 2016-01-27 | 安徽中普盛德电子科技有限公司 | Grounding impedance online monitoring device |
| CN107179444A (en) * | 2017-07-19 | 2017-09-19 | 国网辽宁省电力有限公司丹东供电公司 | Insulating resistance measuring device |
| CN111103011A (en) * | 2019-12-03 | 2020-05-05 | 武汉科技大学 | Tunnel grounding intelligent method, chip and device |
-
2012
- 2012-09-18 CN CN201220475754.9U patent/CN202815094U/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105277796A (en) * | 2015-10-10 | 2016-01-27 | 安徽中普盛德电子科技有限公司 | Grounding impedance online monitoring device |
| CN107179444A (en) * | 2017-07-19 | 2017-09-19 | 国网辽宁省电力有限公司丹东供电公司 | Insulating resistance measuring device |
| CN111103011A (en) * | 2019-12-03 | 2020-05-05 | 武汉科技大学 | Tunnel grounding intelligent method, chip and device |
| CN111103011B (en) * | 2019-12-03 | 2022-04-19 | 武汉科技大学 | Tunnel grounding intelligent method, chip and device |
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Granted publication date: 20130320 |
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