CN102866301A - Grounding resistance analyzing device and grounding resistance analyzing method - Google Patents
Grounding resistance analyzing device and grounding resistance analyzing method Download PDFInfo
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Abstract
The invention discloses a grounding resistance analyzing device and a grounding resistance analyzing method. The device comprises a processor, and a grounding resistance detection module, a grounding resistance analyzing module, a temperature/humidity detection module and a display module which are connected with the processor. According to the grounding resistance analyzing device and the grounding resistance analyzing method, a surrounding environment is detected, the intelligentized analysis on a grounding resistor is realized, and the safety of the grounding resistance analyzing device is greatly improved. The grounding resistance analyzing device has a high thunder and lightning protection effect.
Description
Technical field
The present invention relates to the resistance testing device field, especially relate to comprehensive analysis device and the analytical approach of a kind of surrounding enviroment monitoring to stake resistance, earth resistance, stake resistance analysis.
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.
Summary of the invention
The technical problem to be solved in the present invention is, for the defects of prior art, provides a kind of have the stake resistance analytical equipment of environment monitoring function and the analytical approach of stake resistance.
The technical scheme that technical solution problem of the present invention adopts is as follows:
A kind of stake resistance analytical equipment with environment monitoring function wherein, comprises processor and the stake resistance detection module that links to each other with described processor, stake resistance analysis module, humiture detection module and display module,
Wherein, described stake resistance detection module is used for the steering order of receiving processor, 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 carries out analyzing and processing;
Described humiture detection module is used for real-time humiture to the stake resistance surrounding soil and detects, and temperature value and the humidity value that detects is sent to the processor analyzing and processing;
Described processor is used for temperature value and the humidity value of the stake resistance surrounding soil of the resistance value of the stake resistance of stake resistance detection module transmission and the described humiture detection module transmission of analysis are carried 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 module show;
Display module is used for showing change in resistance curve, temperature variation curve and the moisture curve of described processor transmission.
The stake resistance analysis module is transferred change in resistance curve, temperature variation curve and moisture curve from described processor, and according to the variation relation of change in resistance curve, temperature variation curve and moisture curve, provides corresponding processing policy.
Described stake resistance analytical equipment with environment monitoring function, wherein, described stake resistance detection module also comprises:
The stake resistance signal acquisition module be used for to gather voltage signal and the current signal of stake resistance, and described voltage signal and current signal are sent to stake resistance signal filtering module;
The stake resistance filtration module is used for the voltage signal of stake resistance that described stake resistance signal acquisition module is sent and current signal and carries out filtering and process, and filters out the clutter in described voltage signal and the current signal;
The stake resistance amplification module is used for the described voltage signal after the stake resistance filtration module filtering processing and current signal are carried out the A/D conversion and amplify processing.
Described stake resistance analytical equipment with environment monitoring function, wherein, described processor also is used for temperature value and the humidity value of the resistance value of described stake resistance, described stake resistance surrounding soil are carried out drift correction.
Described stake resistance analytical equipment with environment monitoring function, wherein, described stake resistance analytical equipment also comprises communication module, is used for communicating with supervisory system, sends exceptional instructions to described supervisory system, provides prompting message.
Described stake resistance analytical equipment with environment monitoring function, wherein, described stake resistance analytical equipment also comprises alarm module, is used for sending alerting signal when the resistance value of stake resistance surpasses default Standard resistance range.
Described stake resistance analytical equipment with environment monitoring function, wherein, described stake resistance analytical equipment also comprises the thunder and lightning isolation module, is used for when thunder and lightning occurs, and cuts off thunder and lightning and enters described stake resistance analytical equipment from power supply and described stake resistance detection module.
A kind of by above-mentioned method with stake resistance analytical equipment analysis grounding resistance resistance value of environment monitoring function, may further comprise the steps:
The instruction of A, stake resistance detection module 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;
B, described humiture detection module 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 C, 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;
D, show change in resistance curve, temperature variation curve and the moisture curve that described stake resistance analysis module sends by display module;
E, stake resistance analysis module are transferred change in resistance curve, temperature variation curve and moisture curve from processor, and according to the variation relation of change in resistance curve, temperature variation curve and moisture curve, provide corresponding processing policy.
The method of described analysis grounding resistance resistance value, wherein, described step C also comprises: described processor carries out drift correction to temperature value and the humidity value of the resistance value of described stake resistance, described stake resistance surrounding soil.
The method of described analysis grounding resistance resistance value wherein, also comprises after the described step e: by communication module described change in resistance curve, temperature variation curve and moisture curve are derived.
Provided by the present invention have the stake resistance analytical equipment of environment monitoring function and an analytical approach of stake resistance, not only realized the detection to surrounding environment, also realize the intelligent analysis to stake resistance, 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 with stake resistance analytical equipment of environment monitoring function provided by the invention.
Fig. 2 is the structural representation of a preferred embodiment of the stake resistance analytical equipment with environment monitoring function provided by the invention.
Fig. 3 is the structural representation of the another preferred embodiment of the stake resistance analytical equipment with environment monitoring function provided by the invention.
Fig. 4 is the analytical approach process flow diagram that carries out stake resistance by the stake resistance analytical equipment with environment monitoring function provided by the invention.
Embodiment
For making purpose of the present invention, technical scheme and advantage clearer, clear and definite, developing simultaneously referring to accompanying drawing, the present invention is described in more detail for embodiment.Should be appreciated that specific embodiment described herein only in order to explain the present invention, is not intended to limit the present invention.
Referring to Fig. 1, Fig. 1 is the structural representation with stake resistance analytical equipment of environment monitoring function provided by the invention, and described stake resistance analytical equipment comprises: processor 10 and the stake resistance detection module 20 that links to each other with described processor 10, stake resistance analysis module 50, humiture detection module 30 and display module 40.
Particularly, or described processor 10 is preferably single-chip microcomputer DSP, be mainly used in the initialization setting to date, time, earth resistance drift correction value, and control described stake resistance detection module 20, stake resistance analysis module 50, humiture detection module 30 and display module 40, and the data analysis that stake resistance detection module 20, humiture detection module 30 send is processed.
Described stake resistance detection module 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 detection module 20 also comprises stake resistance signal acquisition module 21, stake resistance filtration module 22 and stake resistance amplification module 23, wherein, the steering order that stake resistance detection module 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 module 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 filtration module 22, carry out filtering by stake resistance filtration module 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 amplification module and current signal more afterwards.
Described humiture detection module 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 detection module 20, humiture detection module 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 detection module 30 transmissions, draw temperature variation curve and moisture curve.In order to improve the accuracy of resistance value, temperature value and humidity value, processor also can carry out drift correction to these data, detects error in order to reduce, and improves the accuracy of analyzing.
Stake resistance analysis module 50 is transferred change in resistance curve, temperature variation curve and moisture curve from described processor 10, and according to the variation relation of change in resistance curve, temperature variation curve and moisture curve, provide corresponding processing policy, improved the intellectuality that stake resistance is analyzed.While stake resistance analysis module 50 also can send to display module with processing policy and show, makes demonstration more directly perceived.
As shown in Figure 3, stake resistance analytical equipment provided by the invention also comprises power module 60, data memory module 80, communication module 90, alarm module 110, key-press module 70 and thunder and lightning isolation module 100, wherein, power module 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 memory module 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; Communication module 90 is used for communicating with supervisory system, and communication mode is wired or wireless, is convenient to derive from data memory module the data recording of storage, judges in order to further analyze; Alarm module 110 is used for when the resistance value of stake resistance exceeds predefined default Standard resistance range, send exceptional instructions by communication module 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-press module 70 is mainly used in starting stake resistance analysis module 50 by receiving user's button operation, enters the routine analyzer of stake resistance.Thunder and lightning isolation module 100 also is used for when thunder and lightning occurs, and the blocking-up thunder and lightning enters the stake resistance analytical equipment from passages such as power supply, test pole, interpole, stake resistance detection modules, prevents that thunder and lightning from causing damage to device, improves the lightning protection ability of device.
Based on above-mentioned stake resistance analytical equipment with environment monitoring function, the present invention also provides a kind of analytical approach of stake resistance, as shown in Figure 4, may further comprise the steps:
The instruction of step S100, stake resistance detection module 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 detection module 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, show change in resistance curve, temperature variation curve and the moisture curve that described stake resistance analysis module sends by display module;
Step S500, stake resistance analysis module are transferred change in resistance curve, temperature variation curve and moisture curve from processor, and according to the variation relation of change in resistance curve, temperature variation curve and moisture curve, provide corresponding processing policy.
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 module starts, gather voltage signal and the current signal of stake resistance, and through the effective filtering interfering clutter of stake resistance filtration module, A/D conversion and signal that the stake resistance amplification module carries out signal amplify, simultaneously, the work of humiture detection module, 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 module was stored in the data memory module 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 alarm module, 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 communication module, by sending exceptional instructions to supervisory system, notify the staff in time to process.
When needs are transferred data analysis from data memory module, can the data in the data memory module be exported to External memory equipment by the communication interface of communication module.The staff can also inquire about the data in the data memory module, 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 module.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, provided by the invention have the stake resistance analytical equipment of environment monitoring function and an 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 invention is not limited to above-mentioned giving an example, for those of ordinary skills, can be improved according to the above description or conversion that all these improvement and conversion all should belong to the protection domain of claims of the present invention.
Claims (9)
1. the stake resistance analytical equipment with environment monitoring function is characterized in that, comprises processor and the stake resistance detection module that links to each other with described processor, stake resistance analysis module, humiture detection module and display module,
Wherein, described stake resistance detection module is used for the steering order of receiving processor, 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 carries out analyzing and processing;
Described humiture detection module is used for real-time humiture to the stake resistance surrounding soil and detects, and temperature value and the humidity value that detects is sent to the processor analyzing and processing;
Described processor is used for temperature value and the humidity value of the stake resistance surrounding soil of the resistance value of the stake resistance of stake resistance detection module transmission and the described humiture detection module transmission of analysis are carried 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 module show;
Display module is used for showing change in resistance curve, temperature variation curve and the moisture curve of described processor transmission;
The stake resistance analysis module is transferred change in resistance curve, temperature variation curve and moisture curve from described processor, and according to the variation relation of change in resistance curve, temperature variation curve and moisture curve, provides corresponding processing policy.
2. the stake resistance analytical equipment with environment monitoring function according to claim 1 is characterized in that, described stake resistance detection module also comprises:
The stake resistance signal acquisition module be used for to gather voltage signal and the current signal of stake resistance, and described voltage signal and current signal are sent to stake resistance signal filtering module;
The stake resistance filtration module is used for the voltage signal of stake resistance that described stake resistance signal acquisition module is sent and current signal and carries out filtering and process, and filters out the clutter in described voltage signal and the current signal;
The stake resistance amplification module is used for the described voltage signal after the stake resistance filtration module filtering processing and current signal are carried out the A/D conversion and amplify processing.
3. the stake resistance analytical equipment with environment monitoring function according to claim 1 is characterized in that, described processor also is used for temperature value and the humidity value of the resistance value of described stake resistance, described stake resistance surrounding soil are carried out drift correction.
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 communication module, be used for communicating with supervisory system, send exceptional instructions to described supervisory system, provide 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 alarm module, is used for sending alerting signal when the resistance value of stake resistance surpasses default Standard resistance range.
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 the thunder and lightning isolation module, is used for when thunder and lightning occurs, and cuts off thunder and lightning and enters described stake resistance analytical equipment from power supply.
7. one kind by such as the described method with stake resistance analytical equipment analysis grounding resistance resistance value of environment monitoring function of claim 1 to 6, may further comprise the steps:
The instruction of A, stake resistance detection module 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;
B, described humiture detection module 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 C, 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;
D, show change in resistance curve, temperature variation curve and the moisture curve that described stake resistance analysis module sends by display module;
E, stake resistance analysis module are transferred change in resistance curve, temperature variation curve and moisture curve from processor, and according to the variation relation of change in resistance curve, temperature variation curve and moisture curve, provide corresponding processing policy.
8. the method for analysis grounding resistance resistance value according to claim 7 is characterized in that, described step C also comprises: described processor carries out drift correction to temperature value and the humidity value of the resistance value of described stake resistance, described stake resistance surrounding soil.
9. the method for analysis grounding resistance resistance value according to claim 7 is characterized in that, also comprises after the described step e: by communication module described change in resistance curve, temperature variation curve and moisture curve are derived.
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