CN204287294U - Portable residual current on-line monitoring system - Google Patents
Portable residual current on-line monitoring system Download PDFInfo
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- CN204287294U CN204287294U CN201420802335.0U CN201420802335U CN204287294U CN 204287294 U CN204287294 U CN 204287294U CN 201420802335 U CN201420802335 U CN 201420802335U CN 204287294 U CN204287294 U CN 204287294U
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- 238000012544 monitoring process Methods 0.000 title claims abstract description 15
- 230000000087 stabilizing effect Effects 0.000 claims abstract description 5
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- 230000005540 biological transmission Effects 0.000 claims description 4
- 238000000034 method Methods 0.000 claims description 3
- 230000006870 function Effects 0.000 abstract description 14
- 238000001514 detection method Methods 0.000 abstract description 5
- 238000005070 sampling Methods 0.000 description 9
- 238000010586 diagram Methods 0.000 description 3
- 238000009434 installation Methods 0.000 description 3
- 238000012360 testing method Methods 0.000 description 3
- 102100033380 Chordin Human genes 0.000 description 2
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- 230000006698 induction Effects 0.000 description 2
- 230000003321 amplification Effects 0.000 description 1
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- 239000003990 capacitor Substances 0.000 description 1
- 238000013461 design Methods 0.000 description 1
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- 238000005516 engineering process Methods 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 238000005286 illumination Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 230000006386 memory function Effects 0.000 description 1
- 238000003199 nucleic acid amplification method Methods 0.000 description 1
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- 238000004064 recycling Methods 0.000 description 1
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Abstract
本实用新型公开了一种便携式剩余电流在线监测系统，其包括GPRS部分、采集部分、充电部分、稳压部分、控制部分；GPRS部分、采集部分、稳压部分都与控制部分连接，GPRS部分、稳压部分都与充电部分连接。本实用新型实现漏电检测和故障指示报警功能，另外还实现体积小型化。
The utility model discloses a portable residual current on-line monitoring system, which comprises a GPRS part, an acquisition part, a charging part, a voltage stabilizing part and a control part; The voltage stabilizing part is connected with the charging part. The utility model realizes the functions of electric leakage detection and fault indication and alarm, and also realizes the miniaturization of the volume.
Description
Technical field
The present invention relates to a kind of monitoring system, particularly relate to a kind of portable residual current on-line monitoring system.
Background technology
Present stage, in rural low voltage network operation maintenance work, the residual current numerical value of the multiple nodes on detection line, has two kinds of implementations:
One; automatically detect at the intelligent switch of interdependent node mounting strap residual current data acquisition function; intelligent switch primary structure with residual current data acquisition function and principle of work as follows: the intelligent switch of band residual current data acquisition function is exactly the earth leakage circuit-breaker of a upgraded version in fact; it is on the basis realizing original creepage protection function; add data acquisition and memory function; the residual current numerical value on circuit is gathered by residual current transformer; and be stored in internal memory, check for user.The problem using the intelligent switch of band residual current data acquisition function to bring and shortcoming as follows: intelligent switch volume is large, and the general node measured that needs cannot be installed.Intelligent switch is installed just must can carry out patching operations by open-circuit line, and have a strong impact on the electricity consumption reliability of user on circuit, therefore, intelligent switch is generally just installed before circuit puts into operation.Intelligent switch, without three anti-functions, can not outdoorly be installed, and must be arranged in regulator cubicle.Intelligent switch is countless according to network savvy, and the data that every platform equipment collects can only independently be checked, cannot browse the data analyzing all nodes on a unified platform.Intelligent switch belongs to fixed equipment, just cannot withdraw at any time after installation, and without recycling function, input cost is large, so be generally only applied to focused protection node.
Two, use pincerlike residual current table by manually detecting, pincerlike residual current table primary structure and principle of work: pincerlike residual current table is also called pincerlike leakage current table, it is the main tool when pre-test residual current value, it is made up of pincerlike gauge outfit and table body two parts, pincerlike gauge outfit is exactly a residual current transformer that can arbitrarily close, gauge outfit is vised test line, just can obtain remaining power signal on test line, again by changing and analyzing, the display screen finally on table body demonstrates measurement numerical value.Use pincerlike residual current watchband come problem and shortcoming as follows: pincerlike residual current table battery durable ability, long-time on-line operation cannot be supported.Pincerlike residual current table, without rainproof function, can not use in rainy day or wet environment, and time overcast and rainy power supply department exactly needs most detection line residual current data.Pincerlike residual current table data acquiring frequency is low, can only gather the residual current data always existed, cannot gather the residual current data of burst.Pincerlike residual current table is countless according to network savvy, and the data that every platform equipment collects can only independently be checked, cannot browse the data analyzing all nodes on a unified platform.Pincerlike residual current table internal memory is little, cannot support that long playing large quantity stores.
Summary of the invention
Technical matters to be solved by this invention is to provide a kind of portable residual current on-line monitoring system, and it realizes detection of electrical leakage and indicating fault warning function, also realizes volume miniaturization in addition.
The present invention solves above-mentioned technical matters by following technical proposals: a kind of portable residual current on-line monitoring system, is characterized in that, it comprises GPRS part, collecting part, live part, voltage stabilization part, control section; GPRS part, collecting part, voltage stabilization part are all connected with control section, and GPRS part, voltage stabilization part are all connected with live part.
Preferably, described voltage stabilization part adopts battery input or outside 5V to input, and it is control section that voltage stabilizing 3.3V is mainly used in, amplifier, comparer and electronic switch are powered.
Preferably, described live part employing P channel MOS tube carrys out the input that control system is powered.
Preferably, described collecting part is primarily of outside zero-sequence transformer, amplifier, comparer composition.
Preferably, described control section function comprises to be responsible for gathering external signal, and obtains final leakage current value by algorithm process, by GPRS fractional transmission image data to server.
Preferably, described GPRS part is connected with control section by serial ports, is connected on remote server by fixed ip address and port.
Positive progressive effect of the present invention is: one, realizes earth leakage detection functions, the leakage current numerical value on the low-voltage supply line of rural area can be detected.Two, realize fault alarm threshold value setting function: can require according to on-the-spot running environment the leak current fault alarming threshold value that setting is different.Three, realize indicating fault warning function: by sounding, illumination mode carrys out indication fault origination point.Four, realize apparent volume miniaturization: enclosure volume is compressed to 2P switch size, can directly be installed in the ammeter box of rural subscribers.Five, gather and general earth leakage circuit-breaker common circuit and chip on control section employing current market, shell uses switch housing, without the need to brand-new design exploitation circuit and mould, reduces production cost, enhances productivity.Six, finished product meets on-the-spot narrow and small installation environment requirement, and Installation and Debugging are convenient and swift, save a large amount of manpower and materials.
Accompanying drawing explanation
Fig. 1 is the theory diagram of portable residual current on-line monitoring system of the present invention.
Fig. 2 is the circuit diagram of collecting part in the present invention.
Fig. 3 is the circuit diagram of live part in the present invention.
Embodiment
Present pre-ferred embodiments is provided, to describe technical scheme of the present invention in detail below in conjunction with accompanying drawing.
As shown in Figure 1, portable residual current on-line monitoring system of the present invention comprises GPRS part, collecting part, live part, voltage stabilization part, control section; GPRS part, collecting part, voltage stabilization part are all connected with control section, and GPRS part, voltage stabilization part are all connected with live part.
Voltage stabilization part adopts battery input or outside 5V to input, and it is control section that voltage stabilizing 3.3V is mainly used in, amplifier, comparer and electronic switch are powered.Add more filter capacitor before and after voltage stabilization part circuit and guarantee that plate carries IC voltage stabilization.
Live part employing P channel MOS tube carrys out the input that control system is powered, and when accessing external power source, system adopts externally fed also to battery charging, and when not having external power source to input, system adopts powered battery.The external dual-colored LED of charging chip shows charged state.
Collecting part is primarily of outside zero-sequence transformer, amplifier, comparer composition.Zero-sequence transformer detects outside line electric leakage and exports induction current according to a certain percentage, induction current is Access Control part after filtering and amplifying circuit, amplifier signal is as comparer input source simultaneously, and comparer exports Access Control part again for detecting sinusoidal wave positive axis maximal value.
Control section function comprises to be responsible for gathering external signal, and obtains final leakage current value by algorithm process, by GPRS fractional transmission image data to server.Control section can arrange the alarming threshold value of acquisition system from remote server or web interface by GPRS part, transmission time, wrong report cycle etc. configuration information.
GPRS part is connected with control section by serial ports, can be connected on remote server by fixed ip address and port.
As shown in Figure 2, collecting part comprises the first sampling resistor R11, the second sampling resistor R12, the first amplifier UA1, the second amplifier UA2, the 3rd amplifier UA3, the 5th resistance R5, the 6th resistance R6, the 7th resistance R7, the 5th electric capacity C5, the 6th electric capacity C6,5th resistance R5, the 6th resistance R6, the 7th resistance R7, the 5th electric capacity C5, the 6th electric capacity C6 are connected with the second amplifier UA2, and the first sampling resistor R11, the second sampling resistor R12 are connected between the first amplifier UA1 and the 3rd amplifier UA3.The principle of work of collecting part is as follows: outside input converts magnitude of voltage to through the first sampling resistor R11, the second sampling resistor R12, through monolateral amplification access microcontroller (MCU) of the first amplifier UA1, first amplifier UA1 exports and inputs as the second amplifier UA2 simultaneously, compares output fiducial value through the second amplifier UA2.Second amplifier UA2 compares threshold values.3rd amplifier UA3 controls to adopt which road sampling resistor, namely can control the conducting of the first sampling resistor R11, the second sampling resistor R12.
The principle of work of voltage stabilization part is as follows: FDN304P is P channel MOS tube, makees electronic switch and uses.Obtain negative gate source voltage when 5V voltage does not have and make its conducting, automatically switch to VBAT, and when 5V voltage exists, make its pinch off, only use 5V power supply.
As shown in Figure 3, live part comprises charging chip TP4057 and comprises charging chip TP4057, first socket J1, first inductance L 1, first electric capacity C1, second electric capacity C2, second inductance L 2, 3rd electric capacity C3, 4th electric capacity C4, first resistance R1, second socket J2, first inductance L 1, first electric capacity C1, second electric capacity C2, second inductance L 2, 3rd electric capacity C3, 4th electric capacity C4, first resistance R1 is connected with charging chip TP4057, first electric capacity C1 is in parallel with the second electric capacity C2, 3rd electric capacity C3 is in parallel with the 4th electric capacity C4, first socket J1 is connected with the first inductance L 1, second inductance L 2 is connected with the second socket J2.The principle of work of live part is as follows: external 5V power supply has CHRD pin and STDBY pin by charging chip TP4057, charging chip TP4057, and CHRD pin and STDBY pin are the charged state instruction of chip, external dual-colored LED display charged state.During battery charging complete, STDBY pin is moved to low level by internal switch, represents charging complete.In addition, STDBY pin will be in high-impedance state.When charger charges to battery, CHRG pin is moved to low level by internal switch, represents that charging is carried out; Otherwise CHRG pin is in high-impedance state.
Control section and GPRS part all adopt minimum system.
Above-described specific embodiment; the technical matters of solution of the present invention, technical scheme and beneficial effect are further described; be understood that; the foregoing is only specific embodiments of the invention; be not limited to the present invention; within the spirit and principles in the present invention all, any amendment made, equivalent replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (6)
1. a portable residual current on-line monitoring system, is characterized in that, it comprises GPRS part, collecting part, live part, voltage stabilization part, control section; GPRS part, collecting part, voltage stabilization part are all connected with control section, and GPRS part, voltage stabilization part are all connected with live part.
2. portable residual current on-line monitoring system as claimed in claim 1, is characterized in that, described voltage stabilization part adopts battery input or outside 5V to input, and it is control section that voltage stabilizing 3.3V is mainly used in, amplifier, comparer and electronic switch are powered.
3. portable residual current on-line monitoring system as claimed in claim 1, is characterized in that, described live part employing P channel MOS tube carrys out the input that control system is powered.
4. portable residual current on-line monitoring system as claimed in claim 1, is characterized in that, described collecting part is primarily of outside zero-sequence transformer, amplifier, comparer composition.
5. portable residual current on-line monitoring system as claimed in claim 1, is characterized in that, described control section function comprises to be responsible for gathering external signal, and obtains final leakage current value by algorithm process, by GPRS fractional transmission image data to server.
6. portable residual current on-line monitoring system as claimed in claim 1, is characterized in that, described GPRS part is connected with control section by serial ports, is connected on remote server by fixed ip address and port.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420802335.0U CN204287294U (en) | 2014-12-16 | 2014-12-16 | Portable residual current on-line monitoring system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420802335.0U CN204287294U (en) | 2014-12-16 | 2014-12-16 | Portable residual current on-line monitoring system |
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| CN204287294U true CN204287294U (en) | 2015-04-22 |
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| CN201420802335.0U Expired - Lifetime CN204287294U (en) | 2014-12-16 | 2014-12-16 | Portable residual current on-line monitoring system |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104391162A (en) * | 2014-12-16 | 2015-03-04 | 南京凡瑞特软件有限公司 | Portable online residual current monitoring system |
| CN106680651A (en) * | 2017-01-03 | 2017-05-17 | 重庆长安汽车股份有限公司 | Leakage current detecting device and vehicle charging equipment |
-
2014
- 2014-12-16 CN CN201420802335.0U patent/CN204287294U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104391162A (en) * | 2014-12-16 | 2015-03-04 | 南京凡瑞特软件有限公司 | Portable online residual current monitoring system |
| CN106680651A (en) * | 2017-01-03 | 2017-05-17 | 重庆长安汽车股份有限公司 | Leakage current detecting device and vehicle charging equipment |
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| GR01 | Patent grant | ||
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20161012 Address after: Qinhuai District of Nanjing City, 210000 Hongwu Road, Jiangsu province No. 26 room 1602 Patentee after: Nanjing Lu Darboux Intelligent Technology Co.,Ltd. Address before: 210000, room 2, Taiping South Road, Qinhuai District, Jiangsu, Nanjing, 1629 Patentee before: NANJING FANRUITE SOFTWARE Co.,Ltd. |
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| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20150422 |