CN103135039A - Power supply line fault monitoring device - Google Patents
Power supply line fault monitoring device Download PDFInfo
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- CN103135039A CN103135039A CN2013100477834A CN201310047783A CN103135039A CN 103135039 A CN103135039 A CN 103135039A CN 2013100477834 A CN2013100477834 A CN 2013100477834A CN 201310047783 A CN201310047783 A CN 201310047783A CN 103135039 A CN103135039 A CN 103135039A
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- supply line
- microprocessor
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Abstract
The invention relates to a power supply line fault monitoring device which comprises a microprocessor, a signal collection module and a communication circuit. The signal collection module is composed of a photoelectric coupler, a photoelectric coupler input end current-limiting resistor, a photoelectric coupler output end current-limiting resistor and diodes. When a power supply line works normally, frequency signals are monitored by a monitoring pin of the microprocessor, and therefore whether the power supply line has faults or not is deduced. According to the power supply line fault monitoring device, automatic monitoring and remote alarming of the faults of the power supply line are achieved, the device has the advantages of alarming the faults in time and being high in working efficiency, low in maintenance cost and capable of improving intelligent degree of monitoring of the power supply line.
Description
Technical field
The present invention relates to a kind of monitoring device, is a kind of supply line fault monitoring device specifically.
Background technology
Daily life be unable to do without " electricity ", and the conveying of " electricity " be unable to do without supply line, and supply line breaks down the directly transmission of impact " electricity ", and then affects the normal use of consumer.After street lamp power supply, road lamp power supply circuit generation cable disconnection fault, the later all street lamps in trouble spot can't work, this can bring very big inconvenience to city life at night, again such as street lamp power supply, road lamp power supply circuit cable is stolen, if can not be found and repair in the very first time, not only can affect the normal use of consumer, also can bring immeasurable property loss to country.Also do not have at present a kind ofly can obtain fast, in time, exactly the good method of supply line's failure message.
Summary of the invention
Technical matters to be solved by this invention is exactly for cable broken string or cable former thereby supply line's failure problems of causing such as stolen, propose a kind of can remote online monitoring supply line failure message, and there is supply line's fault monitoring device of data communication function, have fault alarm in time, high efficiency and the low characteristics of maintenance cost, improved the intelligent degree of supply line's monitoring.This supply line's fault monitoring device is arranged on the supply line optional position, can be long-range reception Surveillance center control command, on-line monitoring supply line fault, and send fault alarm information to Surveillance center.
The present invention solves the problems of the technologies described above adopted technical scheme:
A kind of supply line fault monitoring device, comprise microprocessor, signal acquisition module, telecommunication circuit, it is characterized in that, above-mentioned signal acquisition module is by photoelectrical coupler, photoelectrical coupler input end current-limiting resistance, the photoelectric coupler output end current-limiting resistance, diode forms, above-mentioned signal acquisition module is connected with microprocessor, above-mentioned photoelectrical coupler comprises output terminal phototriode and input end light emitting diode, above-mentioned photoelectrical coupler input end light emitting diode is in parallel with diode reverse, above-mentioned diode jumps in supply line through photoelectrical coupler input end current-limiting resistance, during circuit form that above-mentioned photoelectric coupler output end current-limiting resistance is pull-up resistor, photoelectric coupler output end current-limiting resistance one end connects power supply, the collector of the other end and photoelectrical coupler phototriode, the monitoring pin of microprocessor is connected, the emitter of above-mentioned photoelectric coupler output end phototriode connects power supply ground, the monitoring pin of the collector of above-mentioned photoelectric coupler output end phototriode and microprocessor, the photoelectric coupler output end current-limiting resistance is connected, during circuit form that above-mentioned photoelectric coupler output end current-limiting resistance is pull down resistor, photoelectric coupler output end current-limiting resistance one end connects power supply ground, and the other end is connected with the monitoring pin of microprocessor, the emitter of photoelectric coupler output end phototriode.
A kind of supply line fault monitoring device is characterized in that above-mentioned telecommunication circuit is connected with microprocessor, and means of communication and Surveillance center by current comparative maturity realize information interchange, and means of communication comprises wired mode and wireless mode, does not repeat them here.
In the present invention, the microprocessor that instruction inside is housed is the core of supply line's fault monitoring device, is responsible for the operation of whole supply line device fault monitoring device.
In the present invention, the effect of photoelectric coupler output end current-limiting resistance is the phototriode in the protection photoelectrical coupler, makes its working current in allowed limits; Simultaneously the photoelectric coupler output end current-limiting resistance can also during in cut-off state, guarantee that the microprocessor monitors pin is in a stable level state at phototriode.
In the present invention, the effect of photoelectrical coupler input end current-limiting resistance is light emitting diode, the diode in the protection photoelectrical coupler, makes both working currents all in allowed limits.
A kind of supply line fault monitoring device, its principle of work is: in the supply line optional position, supply line's fault monitoring device is installed, wherein signal acquisition module can realize the collection to supply line's working state monitoring data under the control of the microprocessor that writes in advance executive routine.In signal acquisition process, there is alternating voltage in supply line, light emitting diode and the diode of alternating voltage in photoelectrical coupler input end current-limiting resistance, photoelectrical coupler forms loop and produces alternating current, when the flow direction of alternating current is consistent with the light emitting diode conducting direction in photoelectrical coupler, alternating current fails to be convened for lack of a quorum and drives light emitting diode in photoelectrical coupler luminous and shine the base stage of phototriode in photoelectrical coupler, the base stage of phototriode is subject to making the phototriode conducting after illumination, makes the level of microprocessor monitors pin overturn; When the flow direction of alternating current and the light emitting diode conducting direction in photoelectrical coupler are inconsistent, the diode current flow of the light emitting diode reverse parallel connection in meeting driving and photoelectrical coupler, now the light emitting diode in photoelectrical coupler is not luminous, the base stage of phototriode is not subject to illumination in cut-off state, makes the monitoring pin level again overturn.Go round and begin again, alternating current fails to be convened for lack of a quorum and drives light emitting diode and the state of diode in alternate conduction in photoelectrical coupler, will produce at the microprocessor monitors pin pulse signal of certain frequency.Therefore the microprocessor monitors pin, as long as monitored at the appointed time pulse signal genration, just illustrates that supply line's duty is normal, otherwise illustrates that fault has appearred in supply line.After supply line breaks down, there is no alternating current in the loop that makes light emitting diode in photoelectrical coupler input end current-limiting resistance, photoelectrical coupler and diode form, the microprocessor monitors pin is monitored at the appointed time less than there being frequency signal to produce, at this moment microprocessor sends to monitoring center by fault alarm information by telecommunication circuit, realizes remote alarms.
The invention solves perplex for a long time people, cause the problem of supply line's fault because of cable broken string or the reason such as stolen, replaced current passive, traditional artificial inspection formula monitoring means with long-range, real-time intelligent monitoring method, realize that this invention only need to be installed supply line's fault monitoring device that cost is low, volume is little in the optional position of supply line just passable, thereby save a large amount of human and material resources costs.The present invention has that high efficiency, cost are low, characteristics are timely reported to the police in trouble spot, the data communication function that this device has can be realized supply line's On-line Fault monitoring, long-range Realtime Alerts, improved the intelligent degree of supply line's malfunction monitoring, administrative authority can locate the also fault of rapid-maintenance supply line in time, especially can significantly reduce the huge loss brought to country because cable is stolen, make the universal of city Internet of Things further be extended simultaneously.
The accompanying drawing explanation:
Fig. 1 is structural representation when in the present invention, the photoelectric coupler output end current-limiting resistance is pull-up resistor;
Fig. 2 is structural representation when in the present invention, the photoelectric coupler output end current-limiting resistance is pull down resistor;
Fig. 3 is the structural representation of communication of the present invention;
Fig. 4 is the structural representation of wire communication mode of the present invention;
Fig. 5 is the embodiment of the present invention 1 alternating current and the schematic diagram of monitoring the pin level relation;
Fig. 6 is the embodiment of the present invention 2 alternating currents and the schematic diagram of monitoring the pin level relation.
Label in figure: 1. microprocessor, 2. telecommunication circuit, 3. photoelectric coupler output end current-limiting resistance, 4. photoelectrical coupler, 5. diode, 6. photoelectrical coupler input end current-limiting resistance, 7. Surveillance center, 8. supply line.
Embodiment
Below in conjunction with accompanying drawing 1 and embodiment, the present invention is further described.
A kind of supply line fault monitoring device, comprise microprocessor 1, telecommunication circuit 2, signal acquisition module, it is characterized in that, above-mentioned signal acquisition module is by photoelectrical coupler 4, photoelectrical coupler input end current-limiting resistance 6, photoelectric coupler output end current-limiting resistance 3, diode 5 forms, signal acquisition module is connected with microprocessor 1, above-mentioned photoelectrical coupler 4 comprises output terminal phototriode and input end light emitting diode, above-mentioned photoelectrical coupler 4 input end light emitting diodes and diode 5 reverse parallel connections, above-mentioned diode 5 jumps in supply line 8 through photoelectrical coupler input end current-limiting resistance 6, in Fig. 1, during circuit form that above-mentioned photoelectric coupler output end current-limiting resistance 3 is pull-up resistor, photoelectric coupler output end current-limiting resistance 3 one ends connect power supply, the collector of the other end and photoelectrical coupler 4 phototriodes, the monitoring pin of microprocessor 1 is connected, the emitter of above-mentioned photoelectrical coupler 4 output terminal phototriodes connects power supply ground, the collector of above-mentioned photoelectric coupler output end 4 phototriodes and the monitoring pin of microprocessor 1, photoelectric coupler output end current-limiting resistance 3 is connected, above-mentioned telecommunication circuit 2 is implemented to communicate by letter with Surveillance center 7, in Fig. 2, the circuit form that above-mentioned photoelectric coupler output end current-limiting resistance 3 is pull down resistor, photoelectric coupler output end current-limiting resistance 3 one ends connect the power supply ground, and the emitter of the monitoring pin of the other end and microprocessor 1, the output terminal phototriode of photoelectrical coupler 4 is connected.
The present invention is in implementation process, in the optional position of supply line 8, a luminaire fault monitoring device can be installed, its microprocessor 1 contains the executive routine write in advance, and signal acquisition module realizes the collection to supply line's working state monitoring data under the control of microprocessor 1.In signal acquisition process, there is alternating voltage in supply line 8, alternating voltage is through photoelectrical coupler input end current-limiting resistance 6, light emitting diode in photoelectrical coupler 4 and diode 5 form loop and produce alternating current, when the flow direction of alternating current is consistent with the light emitting diode conducting direction in photoelectrical coupler 4, alternating current fails to be convened for lack of a quorum and drives light emitting diode in photoelectrical coupler 4 luminous and shine the base stage of phototriode in photoelectrical coupler 4, the base stage of phototriode is subject to making the phototriode conducting after illumination, make the level of microprocessor 1 monitoring pin overturn, light emitting diode conducting direction in the flow direction of alternating current and photoelectrical coupler 4 when inconsistent, can drive with photoelectrical coupler 4 in diode 5 conductings of light emitting diode reverse parallel connection, now the light emitting diode in photoelectrical coupler 4 is not luminous, the base stage of phototriode is not subject to illumination in cut-off state, makes the monitoring pin level again overturn.Go round and begin again, alternating current fails to be convened for lack of a quorum and drives light emitting diode and the state of diode 5 in alternate conduction in photoelectrical coupler 4, will produce at microprocessor 1 monitoring pin the pulse signal of certain frequency.Therefore microprocessor 1 monitoring pin, as long as having monitored at the appointed time frequency signal produces, just illustrates that supply line's duty is normal, otherwise illustrates that fault has appearred in supply line.After supply line breaks down, there is no alternating current in the loop that makes light emitting diode in photoelectrical coupler input end current-limiting resistance 6, photoelectrical coupler 4 and diode 5 form, microprocessor 1 monitoring pin is monitored at the appointed time less than the pulse signal genration that certain frequency is arranged, at this moment microprocessor 1 sends to monitoring center 7 by fault alarm information by telecommunication circuit 2, realizes remote alarms.
In the present invention, the effect of photoelectric coupler output end current-limiting resistance 3 is the phototriodes in protection photoelectrical coupler 4, makes its working current in allowed limits; Simultaneously photoelectric coupler output end current-limiting resistance 3 can also during in cut-off state, guarantee that microprocessor 1 monitoring pin is in a stable level state at phototriode.
In the present invention, the effect of photoelectrical coupler input end current-limiting resistance 6 is light emitting diode, the diodes 5 in protection photoelectrical coupler 4, makes both working currents all in allowed limits.
In the present invention, the effect of diode 5 is the photodiodes in protection photoelectrical coupler 4; when in the flow direction of alternating current and photoelectrical coupler 4, the light emitting diode conducting direction is inconsistent; for alternating current provides backward channel, avoid in photoelectrical coupler 4 light emitting diode to be reversed and puncture.
As shown in Figure 1, the circuit form that photoelectric coupler output end current-limiting resistance 3 is pull-up resistor, a termination power of photoelectric coupler output end current-limiting resistance 3, its effect is when not monitoring pulse signal, the monitoring pin remains high level; As shown in Figure 2, the circuit form that photoelectric coupler output end current-limiting resistance 3 is pull down resistor, a termination power ground of photoelectric coupler output end current-limiting resistance 3, its effect is when not monitoring pulse signal, the monitoring pin remains low level.Photoelectric coupler output end current-limiting resistance 3 is selected the circuit form of pull-up resistor or the circuit form of pull down resistor, and working effect is the same, but the level logic that in the course of work, microprocessor 1 pin monitors is contrary, does not repeat them here.
As shown in Figures 1 and 2, the communication mode adopted between telecommunication circuit 2 and Surveillance center 7 can be wired mode, can be also wireless mode, and communication mode communication mode in Fig. 1 and Fig. 2 dots.
As shown in Figure 3, adopt communication between telecommunication circuit 2 and Surveillance center 7, work work process is that telecommunication circuit 2 sends signal by sending module, be transferred to Surveillance center 7 via wireless channel, the receiver module of Surveillance center 7 receives corresponding signal, otherwise Surveillance center 7 sends signal by sending module, be transferred to telecommunication circuit 2 via wireless channel, the receiver module of telecommunication circuit 2 receives corresponding signal.
As shown in Figure 4, adopt the wire communication mode between telecommunication circuit 2 and Surveillance center 7, telecommunication circuit 2 sends signal by interface module, be transferred to Surveillance center 7 via wire message way, the interface module of Surveillance center 7 receives corresponding signal, otherwise Surveillance center 7 sends signal by interface module, be transferred to telecommunication circuit 2 via wire message way, the interface module of telecommunication circuit 2 receives corresponding signal.
A kind of supply line fault monitoring device, supply line provides the 220V50Hz alternating current.As everyone knows, now the working current of photoelectrical coupler input end current-limiting resistance 6 is alternating currents
i, alternating current
iperiod of change be equally also 50Hz, as shown in Fig. 5, Fig. 6 dotted line, do not repeat them here.
As shown in Figure 1, the circuit form that photoelectric coupler output end current-limiting resistance 3 is pull-up resistor, supply line 8 is when normal operating conditions, supply line 8 has alternating voltage, alternating voltage is through photoelectrical coupler input end current-limiting resistance 6, light emitting diode in photoelectrical coupler 4 and diode 5 form loop and produce alternating current, when the flow direction of alternating current is consistent with the conducting direction of light emitting diode in photoelectrical coupler 4, can drive light emitting diode in photoelectrical coupler 4 luminous and irradiate the phototriode base stage in photoelectrical coupler 4, base stage is subject to after illumination in conducting state, making the level of monitoring pin is low level, as Fig. 5 positive half period
ashown in solid line, when the diode current flow direction in the flow direction of alternating current and photoelectrical coupler 4 is inconsistent, diode 5 conductings of the light emitting diode reverse parallel connection in meeting driving and photoelectrical coupler 4, now the light emitting diode of photoelectrical coupler 4 is not luminous, the base stage of the phototriode in photoelectrical coupler 4 is not subject to illumination and in cut-off state, making the level of monitoring pin is high level, as Fig. 5 negative half-cycle
bshown in solid line.So, go round and begin again, alternating current fails to be convened for lack of a quorum and drives light emitting diode in photoelectrical coupler 4 and the state of diode 5 in alternate conduction of reverse parallel connection with it, will produce at the monitoring pin of microprocessor 1 pulse signal of certain frequency, for the alternating current of 50Hz, the frequency signal cycle that the monitoring pin produces is also 50Hz.
Therefore, as long as microprocessor 1 has monitored frequency signal at the appointed time, produce, just illustrate that supply line's duty is normal, otherwise illustrate that fault has appearred in supply line.After supply line breaks down, make microprocessor 1 monitoring pin monitor at the appointed time less than the pulse signal genration that certain frequency is arranged, at this moment microprocessor 1 sends to monitoring center 7 by fault alarm information by telecommunication circuit 2, realizes remote alarms.
Embodiment 2
A kind of supply line fault monitoring device, supply line provides the 220V50Hz alternating current.As everyone knows, now the working current of photoelectrical coupler input end current-limiting resistance 6 is alternating currents
i, alternating current
iperiod of change be equally also 50Hz, as shown in Fig. 5, Fig. 6 dotted line, do not repeat them here.
As shown in Figure 2, the circuit form that photoelectric coupler output end current-limiting resistance 3 is pull down resistor, supply line 8 is when normal operating conditions, supply line 8 has alternating voltage, alternating voltage is through photoelectrical coupler input end current-limiting resistance 6, light emitting diode in photoelectrical coupler 4 and diode 5 form loop and produce alternating current, when the flow direction of alternating current is consistent with the conducting direction of light emitting diode in photoelectrical coupler 4, can drive light emitting diode in photoelectrical coupler 4 luminous and irradiate the phototriode base stage in photoelectrical coupler 4, base stage is subject to after illumination in conducting state, making the level of monitoring pin is high level, as Fig. 6 positive half period
cshown in solid line, when the diode current flow direction in the flow direction of alternating current and photoelectrical coupler 4 is inconsistent, diode 5 conductings of the light emitting diode reverse parallel connection in meeting driving and photoelectrical coupler 4, now the light emitting diode of photoelectrical coupler 4 is not luminous, the base stage of the phototriode in photoelectrical coupler 4 is not subject to illumination and in cut-off state, make the level of monitoring pin for low high level, as Fig. 6 negative half-cycle
dshown in solid line.So, go round and begin again, alternating current fails to be convened for lack of a quorum and drives light emitting diode in photoelectrical coupler 4 and the state of diode 5 in alternate conduction of reverse parallel connection with it, will produce at the monitoring pin of microprocessor 1 pulse signal of certain frequency, for the alternating current of 50Hz, the frequency signal cycle that the monitoring pin produces is also 50Hz.
Therefore, as long as microprocessor 1 has monitored frequency signal at the appointed time, produce, just illustrate that supply line's duty is normal, otherwise illustrate that fault has appearred in supply line.After supply line breaks down, make microprocessor 1 monitoring pin monitor at the appointed time less than the pulse signal genration that certain frequency is arranged, at this moment microprocessor 1 sends to monitoring center 7 by fault alarm information by telecommunication circuit 2, realizes remote alarms.
Claims (2)
1. supply line's fault monitoring device, comprise microprocessor, telecommunication circuit, signal acquisition module, described signal acquisition module is by photoelectrical coupler, photoelectrical coupler input end current-limiting resistance, the photoelectric coupler output end current-limiting resistance, diode forms, it is characterized in that, described signal acquisition module is connected with microprocessor, described photoelectrical coupler comprises output terminal phototriode and input end light emitting diode, described photoelectrical coupler input end light emitting diode is in parallel with diode reverse, described diode jumps in supply line through photoelectrical coupler input end current-limiting resistance, during circuit form that described photoelectric coupler output end current-limiting resistance is pull-up resistor, photoelectric coupler output end current-limiting resistance one end connects power supply, the collector of the other end and photoelectrical coupler phototriode, the monitoring pin of microprocessor is connected, the emitter of described photoelectric coupler output end phototriode connects power supply ground, the monitoring pin of the collector of described photoelectric coupler output end phototriode and microprocessor, the photoelectric coupler output end current-limiting resistance is connected, the circuit form that described photoelectric coupler output end current-limiting resistance is pull down resistor, photoelectric coupler output end current-limiting resistance one end connects power supply ground, and the other end is connected with the monitoring pin of microprocessor, the emitter of photoelectric coupler output end phototriode.
2. supply line's fault monitoring device, is characterized in that, described telecommunication circuit is connected with microprocessor.
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| CN2013100477834A CN103135039A (en) | 2013-02-06 | 2013-02-06 | Power supply line fault monitoring device |
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| CN2013100477834A CN103135039A (en) | 2013-02-06 | 2013-02-06 | Power supply line fault monitoring device |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111090055A (en) * | 2019-12-27 | 2020-05-01 | 珠海格力电器股份有限公司 | Abnormal power failure detection circuit and method |
| CN112023208A (en) * | 2020-09-03 | 2020-12-04 | 合肥康居人智能科技有限公司 | Intelligent oxygen-making and breathing integrated robot control system and use method thereof |
| CN112904833A (en) * | 2021-01-27 | 2021-06-04 | 杭州爱科科技股份有限公司 | Full-automatic cutting system and hardware self-checking system |
| CN116500429A (en) * | 2023-03-16 | 2023-07-28 | 深圳市志奋领科技有限公司 | Proximity switch surge testing device and method |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5949974A (en) * | 1996-07-23 | 1999-09-07 | Ewing; Carrell W. | System for reading the status and for controlling the power supplies of appliances connected to computer networks |
| CN2591633Y (en) * | 2002-12-26 | 2003-12-10 | 北京利德华福技术有限公司 | Three-phase sinusoidal AC electric power abnormal situation detecting circuit |
| US20090121739A1 (en) * | 2007-11-13 | 2009-05-14 | Hon Hai Precision Industry Co., Ltd. | Ac detecting apparatus for detecting operating states of ac power supply |
| CN202676816U (en) * | 2012-05-15 | 2013-01-16 | 格力电器（中山）小家电制造有限公司 | A photoelectric coupling device, photoelectric coupling detection circuits, and an indication circuit |
| CN203069729U (en) * | 2013-02-06 | 2013-07-17 | 王翥 | Power supply line fault monitoring device |
-
2013
- 2013-02-06 CN CN2013100477834A patent/CN103135039A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5949974A (en) * | 1996-07-23 | 1999-09-07 | Ewing; Carrell W. | System for reading the status and for controlling the power supplies of appliances connected to computer networks |
| CN2591633Y (en) * | 2002-12-26 | 2003-12-10 | 北京利德华福技术有限公司 | Three-phase sinusoidal AC electric power abnormal situation detecting circuit |
| US20090121739A1 (en) * | 2007-11-13 | 2009-05-14 | Hon Hai Precision Industry Co., Ltd. | Ac detecting apparatus for detecting operating states of ac power supply |
| CN202676816U (en) * | 2012-05-15 | 2013-01-16 | 格力电器（中山）小家电制造有限公司 | A photoelectric coupling device, photoelectric coupling detection circuits, and an indication circuit |
| CN203069729U (en) * | 2013-02-06 | 2013-07-17 | 王翥 | Power supply line fault monitoring device |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111090055A (en) * | 2019-12-27 | 2020-05-01 | 珠海格力电器股份有限公司 | Abnormal power failure detection circuit and method |
| CN112023208A (en) * | 2020-09-03 | 2020-12-04 | 合肥康居人智能科技有限公司 | Intelligent oxygen-making and breathing integrated robot control system and use method thereof |
| CN112904833A (en) * | 2021-01-27 | 2021-06-04 | 杭州爱科科技股份有限公司 | Full-automatic cutting system and hardware self-checking system |
| CN116500429A (en) * | 2023-03-16 | 2023-07-28 | 深圳市志奋领科技有限公司 | Proximity switch surge testing device and method |
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Application publication date: 20130605 |