CN203069729U - Power supply line fault monitoring device - Google Patents

Power supply line fault monitoring device Download PDF

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Publication number
CN203069729U
CN203069729U CN 201320069541 CN201320069541U CN203069729U CN 203069729 U CN203069729 U CN 203069729U CN 201320069541 CN201320069541 CN 201320069541 CN 201320069541 U CN201320069541 U CN 201320069541U CN 203069729 U CN203069729 U CN 203069729U
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China
Prior art keywords
supply line
current
monitoring
power supply
microprocessor
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Expired - Fee Related
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CN 201320069541
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Chinese (zh)
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王翥
佟晓筠
佟少强
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王翥
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Abstract

The utility model relates to a power supply line fault monitoring device. The power supply line fault monitoring device comprises a microprocessor, a signal acquisition module and a communication circuit, wherein the signal acquisition module is composed of a photoelectric coupler, a photoelectric coupler input end current-limiting resistor, a photoelectric coupler output end current-limiting resistor and a diode. The work principle of the power supply line fault monitoring device is that when the power supply line supplies power normally, a monitoring pin of the microprocessor will detect and monitor frequency signals, and whether the power supply line has a fault or not is inferred on the basis of the frequency signals. The power supply line fault monitoring device realizes automatic monitoring and remote alarm of a power supply line fault, is characterized by prompt fault alarming, high work efficiency and low maintenance cost, thereby improving intelligence degree of power supply line monitoring.

Description

A kind of supply line fault monitoring device
Technical field
The utility model 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 " ", and the conveying of " " be unable to do without supply line, and supply line breaks down the directly transmission of influence " ", and then influences the normal use of consumer.Behind street lamp power supply, road lamp power supply circuit generation cable disconnection fault, later all street lamps in trouble spot can't operate as normal, this brings very big inconvenience can for city life at night, stolen such as street lamp power supply, road lamp power supply circuit cable again, if can not be found and repair in the very first time, not only can influence the normal use of consumer, also can bring immeasurable property loss to country.Also there is not at present a kind of good method that can obtain supply line's failure message quickly and accurately.
The utility model content
Technical problem to be solved in the utility model is exactly to cause supply line's failure problems at reasons such as cable broken string or cable are stolen, propose a kind of can remote online monitoring supply line failure message, and has 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 installed in 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 utility model solves the problems of the technologies described above the technical scheme that adopts:
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 constitutes, 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 the supply line through photoelectrical coupler input end current-limiting resistance, when above-mentioned photoelectric coupler output end current-limiting resistance is the circuit form of 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 links to each other, 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 links to each other; Above-mentioned photoelectric coupler output end current-limiting resistance is the circuit form of pull down resistor, and photoelectric coupler output end current-limiting resistance one end connects power supply ground, and the other end links to each other 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 by means of communication and Surveillance center's realization information interchange of present comparative maturity, means of communication comprises wired mode and wireless mode, does not repeat them here.
In the utility model, in instruction is housed microprocessor be the core of supply line's fault monitoring device, be responsible for the operation of whole supply line device fault monitoring device.
The effect of photoelectric coupler output end current-limiting resistance is the phototriode in the protection photoelectrical coupler in the utility model, makes its working current in allowed limits; The photoelectric coupler output end current-limiting resistance can also guarantee that the microprocessor monitors pin is in a stable level state when phototriode is in cut-off state simultaneously.
The effect of photoelectrical coupler input end current-limiting resistance is light emitting diode, the diode in the protection photoelectrical coupler in the utility model, makes both working currents all in allowed limits.
The utility model in use, can supply line's fault monitoring device be installed in the supply line optional position, wherein signal acquisition module can realize the collection to supply line's working state monitoring data under the control of the microprocessor that writes executive routine in advance.In the 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 constitutes the loop and produces alternating current, when the flow direction of alternating current is consistent with the light emitting diode conducting direction in the photoelectrical coupler, alternating current fails to be convened for lack of a quorum, and to drive light emitting diode in the photoelectrical coupler luminous and shine the base stage of phototriode in the photoelectrical coupler, the base stage of phototriode is subjected to making the phototriode conducting after the illumination, makes the level of microprocessor monitors pin overturn; The flow direction of alternating current and the light emitting diode conducting direction in the photoelectrical coupler can drive when inconsistent with photoelectrical coupler in the diode current flow of light emitting diode reverse parallel connection, light emitting diode in the photoelectrical coupler is not luminous at this moment, the base stage of phototriode is not subjected to illumination and is in cut-off state, makes the monitoring pin level overturn again.Go round and begin again, alternating current fails to be convened for lack of a quorum and drives the state that light emitting diode and diode in the photoelectrical coupler are in alternate conduction, will be at the pulse signal of microprocessor monitors pin generation certain frequency.So the microprocessor monitors pin just illustrates that supply line's duty is normal, otherwise illustrates that then fault has appearred in supply line as long as having monitored pulse signal at the appointed time produces.After supply line breaks down, making does not have alternating current in the loop that is made of the light emitting diode in photoelectrical coupler input end current-limiting resistance, the photoelectrical coupler and diode, 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 with fault alarm information by telecommunication circuit, realizes remote alarms.
Cause supply line's failure problems at reasons such as cable broken string or cable are stolen, the utility model proposes a kind of supply line's failure detector that can remote online monitoring supply line failure message, 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 failure detector has data communication function and the automatic monitoring function of supply line's fault simultaneously; This supply line's fault monitoring device can be installed in 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.
Description of drawings:
Fig. 1 is the structural representation when the photoelectric coupler output end current-limiting resistance is pull-up resistor in the utility model;
Fig. 2 is the structural representation when the photoelectric coupler output end current-limiting resistance is pull down resistor in the utility model;
Fig. 3 is the structural representation of the utility model communication;
Fig. 4 is the structural representation of the utility model wire communication mode;
Fig. 5 is the utility model embodiment 1 alternating current and the synoptic diagram of monitoring the pin level relation;
Fig. 6 is the utility model embodiment 2 alternating currents and the synoptic diagram of monitoring the pin level relation.
Label among the 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
Further specify below in conjunction with accompanying drawing 1 and the utility model of embodiment.
A kind of supply line fault monitoring device, comprise microprocessor 1, telecommunication circuit 2, signal acquisition module, 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 constitutes, it is characterized in that: 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 the supply line 8 through photoelectrical coupler input end current-limiting resistance 6.Among Fig. 1, when above-mentioned photoelectric coupler output end current-limiting resistance 3 is the circuit form of pull-up resistor, photoelectric coupler output end current-limiting resistance 3 one ends connect power supply, the other end links to each other with the collector of photoelectrical coupler 4 phototriodes, the monitoring pin of microprocessor 1, 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 links to each other with the monitoring pin of microprocessor 1, photoelectric coupler output end current-limiting resistance 3, and above-mentioned telecommunication circuit 2 is implemented to communicate by letter with Surveillance center 7; Among Fig. 2, above-mentioned photoelectric coupler output end current-limiting resistance 3 is the circuit form of pull down resistor, photoelectric coupler output end current-limiting resistance 3 one ends connect 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.
Utility model 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 that writes in advance, and signal acquisition module realizes the collection to supply line's working state monitoring data under the control of microprocessor 1.In the 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 the photoelectrical coupler 4 and diode 5 constitute the loop and produce alternating current, when the flow direction of alternating current is consistent with the light emitting diode conducting direction in the photoelectrical coupler 4, alternating current fails to be convened for lack of a quorum, and to drive light emitting diode in the photoelectrical coupler 4 luminous and shine the base stage of phototriode in the photoelectrical coupler 4, the base stage of phototriode is subjected to making the phototriode conducting after the illumination, makes the level of microprocessor 1 monitoring pin overturn; Light emitting diode conducting direction in the flow direction of alternating current and the photoelectrical coupler 4 can drive when inconsistent with photoelectrical coupler 4 in diode 5 conductings of light emitting diode reverse parallel connection, light emitting diode in the photoelectrical coupler 4 is not luminous at this moment, the base stage of phototriode is not subjected to illumination and is in cut-off state, makes the monitoring pin level overturn again.Go round and begin again, alternating current fails to be convened for lack of a quorum and drives the state that light emitting diode and diode 5 in the photoelectrical coupler 4 are in alternate conduction, will be at the pulse signal of microprocessor 1 monitoring pin generation certain frequency.So microprocessor 1 monitoring pin just illustrates that supply line's duty is normal, otherwise illustrates that then fault has appearred in supply line as long as having monitored frequency signal at the appointed time produces.After supply line breaks down, making does not have alternating current in the loop that is made of the light emitting diode in photoelectrical coupler input end current-limiting resistance 6, the photoelectrical coupler 4 and diode 5, microprocessor 1 monitoring pin is monitored at the appointed time less than the pulse signal that certain frequency is arranged and is produced, at this moment microprocessor 1 sends to monitoring center 7 with fault alarm information by telecommunication circuit 2, realizes remote alarms.
The effect of photoelectric coupler output end current-limiting resistance 3 is the phototriodes in the protection photoelectrical coupler 4 in the utility model, makes its working current in allowed limits; Photoelectric coupler output end current-limiting resistance 3 can also guarantee that microprocessor 1 monitoring pin is in a stable level state when phototriode is in cut-off state simultaneously.
The effect of photoelectrical coupler input end current-limiting resistance 6 is light emitting diode, the diodes 5 in the protection photoelectrical coupler 4 in the utility model, makes both working currents all in allowed limits.
The effect of diode 5 is the photodiodes in the protection photoelectrical coupler 4 in the utility model; when the light emitting diode conducting direction is inconsistent in the flow direction of alternating current and the photoelectrical coupler 4; for alternating current provides backward channel, avoid that light emitting diode is reversed puncture in the photoelectrical coupler 4.
As shown in Figure 1, photoelectric coupler output end current-limiting resistance 3 is the circuit form of pull-up resistor, a termination power of photoelectric coupler output end current-limiting resistance 3, and its effect is when not monitoring pulse signal, the monitoring pin remains high level; As shown in Figure 2, photoelectric coupler output end current-limiting resistance 3 is the circuit form of pull down resistor, a termination power ground of photoelectric coupler output end current-limiting resistance 3, and 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 the work effect is the same, but the level logic that microprocessor 1 pin monitors in the course of work is opposite, does not repeat them here.
As Fig. 1 and shown in Figure 2, the communication mode that adopts between telecommunication circuit 2 and the Surveillance center 7 can be wired mode, also can be 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 the Surveillance center 7, work worker 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 the 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.
Embodiment 1
A kind of supply line fault monitoring device, supply line provides the 220V50Hz alternating current.As everyone knows, the working current of photoelectrical coupler input end current-limiting resistance 6 is alternating currents at this moment i, alternating current iPeriod of change equally also be 50Hz, shown in Fig. 5, Fig. 6 dotted line, do not repeat them here.
As shown in Figure 1, photoelectric coupler output end current-limiting resistance 3 is the circuit form of pull-up resistor, when supply line 8 is in 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 the photoelectrical coupler 4 and diode 5 constitute the loop and produce alternating current, when the conducting direction of the light emitting diode in the flow direction of alternating current and the photoelectrical coupler 4 is consistent, can drive the phototriode base stage in the luminous and irradiates light electric coupler 4 of light emitting diode in the photoelectrical coupler 4, base stage is subjected to being in conducting state after the illumination, make that the level of monitoring pin is low level, as Fig. 5 positive half period aShown in the solid line; When the diode current flow direction in the flow direction of alternating current and the photoelectrical coupler 4 is inconsistent, diode 5 conductings of the light emitting diode reverse parallel connection in meeting driving and the photoelectrical coupler 4, this moment, the light emitting diode of photoelectrical coupler 4 was not luminous, the base stage of the phototriode in the photoelectrical coupler 4 is not subjected to illumination and is in cut-off state, make that the level of monitoring pin is high level, as Fig. 5 negative half-cycle bShown in the solid line.So, go round and begin again, alternating current fail to be convened for lack of a quorum drive in the photoelectrical coupler 4 light emitting diode and with it the diode 5 of reverse parallel connection be in the state of alternate conduction, will produce the pulse signal of certain frequency at the monitoring pin of microprocessor 1, for the alternating current of 50Hz, the frequency signal cycle that the monitoring pin produces also is 50Hz.
Therefore, produce as long as microprocessor 1 has monitored frequency signal at the appointed time, just illustrate that supply line's duty is normal, otherwise illustrate that then 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 that certain frequency is arranged and produce that at this moment microprocessor 1 sends to monitoring center 7 with 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, the working current of photoelectrical coupler input end current-limiting resistance 6 is alternating currents at this moment i, alternating current iPeriod of change equally also be 50Hz, shown in Fig. 5, Fig. 6 dotted line, do not repeat them here.
As shown in Figure 2, photoelectric coupler output end current-limiting resistance 3 is the circuit form of pull down resistor, when supply line 8 is in 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 the photoelectrical coupler 4 and diode 5 constitute the loop and produce alternating current, when the conducting direction of the light emitting diode in the flow direction of alternating current and the photoelectrical coupler 4 is consistent, can drive the phototriode base stage in the luminous and irradiates light electric coupler 4 of light emitting diode in the photoelectrical coupler 4, base stage is subjected to being in conducting state after the illumination, make that the level of monitoring pin is high level, as Fig. 6 positive half period cShown in the solid line; When the diode current flow direction in the flow direction of alternating current and the photoelectrical coupler 4 is inconsistent, diode 5 conductings of the light emitting diode reverse parallel connection in meeting driving and the photoelectrical coupler 4, this moment, the light emitting diode of photoelectrical coupler 4 was not luminous, the base stage of the phototriode in the photoelectrical coupler 4 is not subjected to illumination and is in cut-off state, make that the level of monitoring pin is low high level, as Fig. 6 negative half-cycle dShown in the solid line.So, go round and begin again, alternating current fail to be convened for lack of a quorum drive in the photoelectrical coupler 4 light emitting diode and with it the diode 5 of reverse parallel connection be in the state of alternate conduction, will produce the pulse signal of certain frequency at the monitoring pin of microprocessor 1, for the alternating current of 50Hz, the frequency signal cycle that the monitoring pin produces also is 50Hz.
Therefore, produce as long as microprocessor 1 has monitored frequency signal at the appointed time, just illustrate that supply line's duty is normal, otherwise illustrate that then 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 that certain frequency is arranged and produce that at this moment microprocessor 1 sends to monitoring center 7 with 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 constitutes, it is characterized in that, described signal acquisition module links to each other 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 the supply line through photoelectrical coupler input end current-limiting resistance, when described photoelectric coupler output end current-limiting resistance is the circuit form of 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 links to each other, 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 links to each other; Described photoelectric coupler output end current-limiting resistance is the circuit form of pull down resistor, and photoelectric coupler output end current-limiting resistance one end connects power supply ground, and the other end links to each other 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.
CN 201320069541 2013-02-06 2013-02-06 Power supply line fault monitoring device Expired - Fee Related CN203069729U (en)

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Application Number Priority Date Filing Date Title
CN 201320069541 CN203069729U (en) 2013-02-06 2013-02-06 Power supply line fault monitoring device

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Application Number Priority Date Filing Date Title
CN 201320069541 CN203069729U (en) 2013-02-06 2013-02-06 Power supply line fault monitoring device

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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103135039A (en) * 2013-02-06 2013-06-05 王翥 Power supply line fault monitoring device
CN103454557A (en) * 2013-08-29 2013-12-18 华为技术有限公司 Method and device for detecting cable fault
CN104122810A (en) * 2014-07-11 2014-10-29 成都飞亚航空设备应用研究所有限公司 Controlling method of aircraft engine fire detection apparatus
CN111970026A (en) * 2020-08-20 2020-11-20 重庆欢腾科技有限公司 Circuit connection monitoring structure and device

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103135039A (en) * 2013-02-06 2013-06-05 王翥 Power supply line fault monitoring device
CN103454557A (en) * 2013-08-29 2013-12-18 华为技术有限公司 Method and device for detecting cable fault
CN103454557B (en) * 2013-08-29 2016-06-22 华为技术有限公司 The detection method of a kind of cable fault and detecting device
CN104122810A (en) * 2014-07-11 2014-10-29 成都飞亚航空设备应用研究所有限公司 Controlling method of aircraft engine fire detection apparatus
CN111970026A (en) * 2020-08-20 2020-11-20 重庆欢腾科技有限公司 Circuit connection monitoring structure and device

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Granted publication date: 20130717

Termination date: 20150206