CN203745546U - Ground resistance monitoring device - Google Patents
Ground resistance monitoring device Download PDFInfo
- Publication number
- CN203745546U CN203745546U CN201420097217.4U CN201420097217U CN203745546U CN 203745546 U CN203745546 U CN 203745546U CN 201420097217 U CN201420097217 U CN 201420097217U CN 203745546 U CN203745546 U CN 203745546U
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- resistance
- monitoring device
- module
- circuit
- logic processor
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- 238000012806 monitoring device Methods 0.000 title claims abstract description 19
- 230000003321 amplification Effects 0.000 claims abstract description 12
- 238000003199 nucleic acid amplification method Methods 0.000 claims abstract description 12
- 238000012544 monitoring process Methods 0.000 abstract description 3
- 238000009434 installation Methods 0.000 abstract 1
- 238000012423 maintenance Methods 0.000 abstract 1
- 238000010586 diagram Methods 0.000 description 3
- 239000003990 capacitor Substances 0.000 description 2
- 208000033999 Device damage Diseases 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 230000002401 inhibitory effect Effects 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
Abstract
The utility model relates to a ground resistance monitoring device, characterized by comprising a logical processor which is connected with a sensor, a resistance balance adjusting circuit and a signal amplification circuit. The signal amplification circuit is connected with an acoustic signal module and a light signal module. The ground resistance monitoring device also comprises a power supply module for supplying power to the logical processor, the acoustic signal module and the light signal module. The sensor is used for collecting a resistance value of a monitored ground wire. The resistance balance adjusting circuit is used for adjusting a level of the input terminal of the logical processor. The ground resistance monitoring device of the utility model is widely applicable in monitoring the ground resistance of the devices in the fields of electric power, communication and broadcast and TV and the like. The ground resistance monitoring device of the utility model is simple in structure, safe, reliable, and convenient and simple in maintenance and installation.
Description
Technical field
The utility model relates to a kind of grounding resistance monitoring device, is applicable to the calculator room equipment stake resistance monitorings such as electric power, communication, broadcasting and TV.
Background technology
At present, calculator room equipment ground wire, often because of the reason such as loose contact, insulation ag(e)ing, can not be found in time, causes high resistance ground, very easily causes device damage or causes the hidden danger that maintainer gets an electric shock because of body leakage.Therefore, need to develop a kind of grounding resistance monitoring device, monitor by stake resistance, the utmost point is early pinpointed the problems and solves, and plays the object of protection user's calculator room equipment and personal safety.
Utility model content
In view of this, the purpose of this utility model is to provide a kind of grounding resistance monitoring device.
The utility model adopts following scheme to realize: a kind of grounding resistance monitoring device, it is characterized in that: comprise a logic processor, described logic processor connects a sensor, one resistance balanced adjustment circuit and a signal amplification circuit, described signal amplification circuit connects an acoustic signal module and a wigwag module, also comprise that a power module is with thinking described logic processor, acoustic signal module and wigwag module for power supply, described sensor is for gathering the resistance value of monitored ground wire, described resistance balanced adjustment circuit is for adjusting the level of logic processor input end.
In the utility model one embodiment, the integrated circuit that described logic processor is made up of 4 Sheffer stroke gates, model is 4011 integrated circuit.
In the utility model one embodiment, described resistance balanced adjustment circuit is made up of adjustable resistance Rv serial connection fixed resistance R1.
In the utility model one embodiment, described signal amplification circuit is made up of current-limiting resistance R5, triode Q1 and triode Q2.
In the utility model one embodiment, described acoustic signal module is made up of loudspeaker L1 serial connection gauge tap K2, for sending warning sound.
In the utility model one embodiment, described wigwag module is made up of alarm indicator D5 serial connection current-limiting resistance R6, for the alarm of flashing.
In the utility model one embodiment, described power module comprises reduction voltage loop and A/D convertor circuit.
The utility model suitable application area scope is wide, can be widely used in the equipment ground electrical resistance monitorings such as electric power, communication, broadcasting and TV, have simple in structure, safe and reliable, safeguard and install the advantage such as simple and convenient.
For making the purpose of this utility model, technical scheme and advantage clearer, below will, by specific embodiment and relevant drawings, the utility model be described in further detail.
Brief description of the drawings
Fig. 1 is system chart of the present utility model.
Fig. 2 is the inside schematic diagram of the utility model logic processor 4001.
Fig. 3 is the circuit theory diagrams of the utility model one embodiment.
Embodiment
As shown in Figure 1, the utility model provides a kind of grounding resistance monitoring device, comprise a logic processor, described logic processor connects a sensor, one resistance balanced adjustment circuit and a signal amplification circuit, described signal amplification circuit connects an acoustic signal module and a wigwag module, also comprise that a power module is with thinking described logic processor, acoustic signal module and wigwag module for power supply, described sensor is for gathering the resistance value of monitored ground wire, described resistance balanced adjustment circuit is for adjusting the level of logic processor input end, stablize fixed value, described acoustic signal module is used for sending warning sound, be used for the glistening alarm instruction of described wigwag module.
As shown in Figure 2,3, described logic processor is made up of IC4001 integrated circuit, C1, C2, C3, R2, R3, C1 is connected on sensor output terminal, and signal is offered to IC4001 integrated circuit, C2 is connected between IC4001 integrated circuit pin 6 and pin 8, and C3 is connected between IC4001 integrated circuit pin 10 and pin 12; R2 mono-end is connected on IC4001 integrated circuit pin 4, and an end is connected on signal input part; R3 mono-end is connected on positive source, and an end is connected on IC4001 integrated circuit pin 8.Described Sheffer stroke gate is a kind of logical circuit, and output low level in the time that input is high level, when having at least one to export high level during for low level in input.
As shown in Figure 3, described resistance balanced adjustment circuit is 0-20 Ω by adjustable resistance Rv(Rv adjustable extent) serial connection current-limiting resistance R1 forms, Rv mono-end is connected on positive source, connect with R1 in one end, the other end sensor output terminal of R1 is connected, be mainly used in level voltage inhibiting effect, be used for adjusting the level of logic processor input end, stablize fixed value; Described signal amplification circuit is connected to form by current-limiting resistance R5, triode Q1, Q2, R5 mono-end is connected on IC4001 integrated circuit pin 9, the other end is connected on the input end of Q1, and the output terminal of Q1 is connected on the input end of Q2, and the output terminal of Q2 is connected on loudspeaker L1 and alarm indicator D5; Described acoustic signal module is made up of loudspeaker L1 serial connection gauge tap K2, and an end of loudspeaker L1 is connected on the output terminal of Q2, and other end series connection control switch K2 also receives power cathode, for sending warning sound; Described wigwag module is made up of alarm indicator D5 serial connection current-limiting resistance R6, and one end of alarm indicator D5 is attempted by the output terminal of Q2, and other end serial connection current-limiting resistance R6 also receives power cathode, for the alarm of flashing; Described power module comprises reduction voltage loop and A/D convertor circuit, is made up of power switch K1, miniature transformer B2, rectification diode D1-D4, filter capacitor C4 and power light D6 series resistor R4; In described reduction voltage loop, the input end of the miniature transformer B2 K switch 1 of connecting with the mains, output terminal connects the A/D convertor circuit being made up of rectification diode D1-D4, filtering capacitor C 4 and power light D6 in the parallel connection of A/D convertor circuit output terminal; Described reduction voltage loop exchanges 6V voltage for alternating current 220V voltage is become; Described A/D convertor circuit is for becoming direct current 12V by alternating voltage 6V.Described sensor is a kind of harvester, sensor output high level in the time that stake resistance becomes large, output low level when stake resistance diminishes.
In order to allow persons skilled in the art better understand principle of work of the present utility model, describe below in conjunction with circuit theory diagrams of the present utility model: as shown in Figure 3, the ground wire that needs are monitored is directly through described sensor, then open power switch K1 and the loudspeaker gauge tap K2 of described grounding resistance monitoring device, this timer is started working, and power light D6 is bright; Adjusting adjustable resistance Rv(Rv adjustable extent in described resistance balanced adjustment circuit is 0-20 Ω) size, make described logic processor input end remain low level, now described logic processor no signal output.In the time that ground lead resistance becomes large, described sensor output high level signal, described logic processor sends high-frequency signal, this high-frequency signal amplifies through described signal amplification circuit (triode Q1 and triode Q2), and the signal after amplifying is offered to described acoustic signal module (loudspeaker L1) and wigwag module (alarm indicator D5), now loudspeaker L1 sends sound, alarm indicator D5 is bright, prompting user stake resistance raises, exceed specialized range, user can close loudspeaker alarm sound by closing loudspeaker gauge tap K2 after seeing signal, then the underproof ground wire of monitored stake resistance is rectified and improved.
Above-listed preferred embodiment; the purpose of this utility model, technical scheme and advantage are further described; institute is understood that; the foregoing is only preferred embodiment of the present utility model; not in order to limit the utility model; all within spirit of the present utility model and principle, any amendment of doing, be equal to replacement, improvement etc., within all should being included in protection domain of the present utility model.
Claims (7)
1. a grounding resistance monitoring device, it is characterized in that: comprise a logic processor, described logic processor connects a sensor, a resistance balanced adjustment circuit and a signal amplification circuit, described signal amplification circuit connects an acoustic signal module and a wigwag module, also comprise that a power module is with thinking described logic processor, acoustic signal module and wigwag module for power supply, described sensor is for gathering the resistance value of monitored ground wire, and described resistance balanced adjustment circuit is for adjusting the level of logic processor input end.
2. grounding resistance monitoring device according to claim 1, is characterized in that: the integrated circuit that described logic processor is made up of 4 Sheffer stroke gates, model is 4011 integrated circuit.
3. grounding resistance monitoring device according to claim 1, is characterized in that: described resistance balanced adjustment circuit is made up of adjustable resistance Rv serial connection fixed resistance R1.
4. grounding resistance monitoring device according to claim 1, is characterized in that: described signal amplification circuit is made up of current-limiting resistance R5, triode Q1 and triode Q2.
5. grounding resistance monitoring device according to claim 1, is characterized in that: described acoustic signal module is made up of loudspeaker L1 serial connection gauge tap K2, for sending warning sound.
6. grounding resistance monitoring device according to claim 1, is characterized in that: described wigwag module is made up of alarm indicator D5 serial connection current-limiting resistance R6, for the alarm of flashing.
7. grounding resistance monitoring device according to claim 1, is characterized in that: described power module comprises reduction voltage loop and A/D convertor circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420097217.4U CN203745546U (en) | 2014-03-05 | 2014-03-05 | Ground resistance monitoring device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420097217.4U CN203745546U (en) | 2014-03-05 | 2014-03-05 | Ground resistance monitoring device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203745546U true CN203745546U (en) | 2014-07-30 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420097217.4U Expired - Fee Related CN203745546U (en) | 2014-03-05 | 2014-03-05 | Ground resistance monitoring device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203745546U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103792434A (en) * | 2014-03-05 | 2014-05-14 | 国家电网公司 | Ground resistance monitoring device and monitoring method thereof |
| CN105044467A (en) * | 2015-05-25 | 2015-11-11 | 苏州市华安普电力工程有限公司 | Multifunctional earth resistance tester |
| CN105717367A (en) * | 2016-04-13 | 2016-06-29 | 国网新疆电力公司阿克苏供电公司 | Grounding device resistor monitor for preventing humans and animals from electric shock |
-
2014
- 2014-03-05 CN CN201420097217.4U patent/CN203745546U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103792434A (en) * | 2014-03-05 | 2014-05-14 | 国家电网公司 | Ground resistance monitoring device and monitoring method thereof |
| CN105044467A (en) * | 2015-05-25 | 2015-11-11 | 苏州市华安普电力工程有限公司 | Multifunctional earth resistance tester |
| CN105717367A (en) * | 2016-04-13 | 2016-06-29 | 国网新疆电力公司阿克苏供电公司 | Grounding device resistor monitor for preventing humans and animals from electric shock |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140730 Termination date: 20180305 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |