CN207764922U - A kind of system of electric power terminal device instruction operation troubles - Google Patents
A kind of system of electric power terminal device instruction operation troubles Download PDFInfo
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- CN207764922U CN207764922U CN201721861217.7U CN201721861217U CN207764922U CN 207764922 U CN207764922 U CN 207764922U CN 201721861217 U CN201721861217 U CN 201721861217U CN 207764922 U CN207764922 U CN 207764922U
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Abstract
The utility model is related to the system that a kind of electric power terminal device indicates operation troubles, which includes：Signal generator (1)：The central processing unit for connecting terminal device generates trigging signal signal when terminal device is normal, trigging signal signal stops overturning when terminal equipment failure；Signal processor (2)：Connection signal generator (1) input terminal, when incoming level signal is trigging signal, signal processor (2) output level is kept constant, and after incoming level signal stops overturning, output level changes；Fault detector (3)：Connection signal processor (2).Compared with prior art, the utility model correctly can reliably indicate the malfunction of electric power terminal device.
Description
Technical field
The utility model is related to a kind of electric power terminal device fault monitoring systems, more particularly, to a kind of electric power terminal device
The system for indicating operation troubles.
Background technology
Intelligent terminal is widely used in electric power supervisory control field at home, and different terminal devices completes different work(
Energy.But the either terminal of which kind of function is required for having function and method that terminal device operating condition can be explicitly indicated, side
Just whether the working condition of live operation maintenance personnel's accurate judgement terminal is normal.
Whether two class method of electric power terminal device generally use carrys out indicating equipment in normal operation at present.Method one：At end
Run indicator is added in end equipment, if terminal operating indicator light is flickering, proves that equipment is in normal operating condition, such as
Fruit run indicator is lighted or is extinguished for a long time for a long time, then illustrating terminal device, operation goes wrong at present, in abnormal shape
State.Method two：Using terminal equipment directly controls an indicator light or relay output, is used to indicate the working condition of equipment.
No matter which kind of above-mentioned method, exist some drawbacks.Method one needs the relatively long time to observe run indicator
Judge equipment running status, and due to the output signal be in ceaselessly overturn always, is unfavorable for miscellaneous equipment acquisition
Equipment running status signal.Second method places one's entire reliance upon the normal operation of terminal core module, if key control unit is transported
Row goes wrong, then output signal cannot correctly reflect the operating status of equipment.
Utility model content
The purpose of this utility model is exactly to provide a kind of electric power terminal to overcome the problems of the above-mentioned prior art
The system that equipment indicates operation troubles.
The purpose of this utility model can be achieved through the following technical solutions：
A kind of system of electric power terminal device instruction operation troubles, the system include：
Signal generator：The central processing unit for connecting terminal device generates trigging signal signal, eventually when terminal device is normal
Trigging signal signal stops overturning when end equipment failure；
Signal processor：Connection signal generator input terminal, when incoming level signal is trigging signal, signal processor
Output level is kept constant, and after incoming level signal stops overturning, output level changes；
Fault detector：Connection signal processor.
The signal generator includes microcontroller, DSP.
The signal processor includes 555 timer single-shot trigger circuits, the 555 timer monostable triggers
Circuit includes 555 timers, 555 timers trigger end connection signal generator outputs, 555 timer discharge ends connection first
Capacitance；
The signal processor further includes for triggering the electric discharge of the first capacitance in signal generator output switching activity signal
Triggering discharge paths, the triggering discharge paths are parallel to the first capacitance both ends, and trigger the connection of discharge paths triggering end
Signal generator output end.
The triggering discharge paths include discharge resistance and triode, and the transistor collector passes through discharge resistance
The first capacitance cathode is connected, transistor emitter connects the first capacitance cathode, and transistor base is the triggering for triggering discharge paths
Hold simultaneously connection signal generator output.
The fault detector includes indicator light.
The fault detector further includes one or more combinations in relay, optocoupler.
Compared with prior art, the utility model has the following advantages that：
(1) the utility model indicates that electric power terminal device is normal using trigging signal, and level stops overturning and then indicates electric power
Terminal equipment failure, and then signal processor exports corresponding signal according to the incoming level state of input terminal, compared to straight
The method for connecing output services state, output instruction are more accurate, it can be ensured that will not make terminal work because of the exception of output signal
Make state instruction exception, it is ensured that output it is accurate；
(2) the utility model is implemented in combination with input using 555 timer single-shot trigger circuits and triggering discharge paths
The processing of signal is 2V using the first capacitance maximum voltage in 555 timer single-shot trigger circuitsCC/ 3 this characteristic, when
When signal generator output end is trigging signal, triggering discharge paths work so that the first capacitance discharges, to which the first capacitance fills
2V is not achieved in piezoelectric voltage alwaysCCThe output of/3,555 timer single-shot trigger circuits is kept constant, just to instruction terminal equipment
Often, when signal generator output end signal stops overturning, high level or low level no matter are stopped at, triggering discharge paths are equal
Cisco unity malfunction, the first capacitance voltage reach 2V quicklyCC/ 3, to which 555 timer single-shot trigger circuit output levels are sent out
Changing thereby indicates that terminal equipment failure, signal processor are built using integrated digital and analog circuit, microcontroller is not present
Class programming device, greatly improves anti-interference ability, it is ensured that output is stablized；
(3) the utility model fault detector is various informative, and indicator light can intuitively carry out failure displaying, relay or
When optocoupler exports, output signal can be acquired by miscellaneous equipment, and convenient run to equipment carries out remote monitoring.
Description of the drawings
Fig. 1 is the structure diagram for the system that the utility model electric power terminal device indicates operation troubles；
Fig. 2 is the physical circuit figure of the present embodiment signal processor；
Fig. 3 is 555 timer monostable trigger sequence diagrams；
Fig. 4 is the logic timing figure of the signal that signal generator generates and the signal of signal processor output.
In figure, 1 is signal generator, and 2 be signal processor, and 3 be fault detector.
Specific implementation mode
The utility model is described in detail in the following with reference to the drawings and specific embodiments.
Embodiment
As shown in Figure 1, a kind of system of electric power terminal device instruction operation troubles, the system include：
Signal generator 1：The central processing unit for connecting terminal device generates trigging signal signal when terminal device is normal,
Trigging signal signal stops overturning when terminal equipment failure；
Signal processor 2：1 input terminal of connection signal generator, when incoming level signal is trigging signal, signal processing
2 output level of device is kept constant, and after incoming level signal stops overturning, output level changes；
Fault detector 3：Connection signal processor 2.
Signal generator 1 includes microcontroller, DSP, naturally it is also possible to directly be sent out by the central processing unit of electric power terminal device
Go out associated level signal.
As shown in Fig. 2, signal processor 2 includes 555 timer single-shot trigger circuits, 555 timer monostable triggers
Circuit includes 555 timers, 555 timers trigger ends (2 foot) connection signal generator, 1 output end, 555 timer discharge ends
(7 foot) connects the first capacitance (capacitance C3 in Fig. 2)；Signal processor 2 further includes in 1 output switching activity signal of signal generator
When trigger the triggering discharge paths of the first capacitance electric discharge, triggering discharge paths are parallel to the first capacitance both ends, and trigger electric discharge branch
1 output end of road triggering end connection signal generator.It includes discharge resistance R3 and triode Q1, triode Q1 collection to trigger discharge paths
Electrode connects the first capacitance C3 cathode, triode by discharge resistance R3 the first capacitances of connection C3 anodes, triode Q1 emitters
Q1 base stages be trigger discharge paths triggering end and by 1 output end of capacitance C2 connection signals generator, triode Q1 base stages are also
Connect diode D2 cathodes, diode D2 plus earths, diode D2 parallel resistances R4.555 traditional timer monostables are touched
The sequential of Power Generation Road is as shown in figure 3, Vi is input signal, VCFor the first capacitance C3 charging voltages, VOFor output level, due to touching
The addition for sending out discharge paths will trigger Q1 pairs of resistance R3 and triode the simultaneously at the ends Vi when low level is converted into high level
One capacitance C3 electric discharges, are more than 2V to prevent the first capacitance C3 level in short-termCC/ 3, if such level change always present in
The ends Vi, then VOIt will remain high level.If this level change of Vi inputs stops, high level or low no matter is stopped at
Level, since the discharge loop of the first capacitance C3 can not be formed by resistance R3 and triode Q1, so working as VCLevel is more than
2VCCAfter/3, VOIt is restored to low level, is achieved in the output of failure.Entire signal processor 2 uses integrated digital and simulation
Circuit is built, and microcontroller class programming device is not present, greatly improves anti-interference ability, it is ensured that output is stablized.
Fault detector 3 includes indicator light, and when a failure occurs it, indicator light is bright, and visual result is visual, fault detector 3
Further include one or more combinations in relay, optocoupler, when being exported using relay or optocoupler, output signal can be by
Miscellaneous equipment acquires, and convenient run to equipment carries out remote monitoring.
Electric power terminal device indicates that the concrete operating principle of the system progress indicating fault of operation troubles is：
First, monitor electric power terminal device, if electric power terminal device normally if signal generator 1 generate trigging signal letter
Number, the trigging signal signal that signal generator 1 generates if terminal equipment failure stops overturning and keeps constant；
Then, the level signal that signal processor 2 generates signal generator 1 is handled, if the level signal generated
The first constant level is then exported for trigging signal, and second electrical level is exported if the level signal generated stops overturning；
Finally, when what fault detector 3 received the output of signal processor 2 is the first level, fault detector 3 is motionless
Make, triggering fault detector 3, which acts, when what signal processor 2 exported is second electrical level indicates failure.
As shown in figure 4,1. and being 2. the signal that signal generator 1 generates, the signal 3. exported for signal processor 2, tool
There is following characteristic：
There are two state (1 and 2), which kind of state is output signal be in and depend on input signal output signal；
When input signal (low and high level) persistently overturns variation, output signal is state 1；
Input signal (low and high level) stop overturning, keep same state for a period of time after, output signal enters state 2.
When electric power terminal device is switched on, output signal is in state 2；Start to institute after the completion of electric power terminal device initialization
It states system and generates the variation level signal persistently overturn, output is into state 1 and keeps；Become if input signal stops overturning
Change, after a period of time, output enters state 2, until there is the generation of the variation level signal of overturning again.
Claims (6)
1. a kind of system of electric power terminal device instruction operation troubles, which is characterized in that the system includes：
Signal generator (1)：The central processing unit for connecting terminal device generates trigging signal signal, eventually when terminal device is normal
Trigging signal signal stops overturning when end equipment failure；
Signal processor (2)：Connection signal generator (1) input terminal, when incoming level signal is trigging signal, signal processing
Device (2) output level is kept constant, and after incoming level signal stops overturning, output level changes；
Fault detector (3)：Connection signal processor (2).
2. a kind of system of electric power terminal device instruction operation troubles according to claim 1, which is characterized in that described
Signal generator (1) includes microcontroller, DSP.
3. a kind of system of electric power terminal device instruction operation troubles according to claim 1, which is characterized in that described
Signal processor (2) includes 555 timer single-shot trigger circuits, and the 555 timer single-shot trigger circuits include 555
Timer, 555 timers trigger end connection signal generator (1) output ends, 555 timer discharge ends connect the first capacitance；
The signal processor (2) further includes being put for triggering the first capacitance in signal generator (1) output switching activity signal
The triggering discharge paths of electricity, the triggering discharge paths are parallel to the first capacitance both ends, and trigger discharge paths triggering end and connect
Connect signal generator (1) output end.
4. a kind of system of electric power terminal device instruction operation troubles according to claim 3, which is characterized in that described
Triggering discharge paths include discharge resistance and triode, and the transistor collector is connecting the first capacitance just by discharge resistance
Pole, transistor emitter connect the first capacitance cathode, and transistor base is triggering end and the connection signal production for triggering discharge paths
Raw device (1) output end.
5. a kind of system of electric power terminal device instruction operation troubles according to claim 1, which is characterized in that described
Fault detector (3) includes indicator light.
6. a kind of system of electric power terminal device instruction operation troubles according to claim 1, which is characterized in that described
Fault detector (3) further includes one or more combinations in relay, optocoupler.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721861217.7U CN207764922U (en) | 2017-12-27 | 2017-12-27 | A kind of system of electric power terminal device instruction operation troubles |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721861217.7U CN207764922U (en) | 2017-12-27 | 2017-12-27 | A kind of system of electric power terminal device instruction operation troubles |
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| CN207764922U true CN207764922U (en) | 2018-08-24 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107978108A (en) * | 2017-12-27 | 2018-05-01 | 上海欣能信息科技发展有限公司 | A kind of system and method for electric power terminal device instruction operation troubles |
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2017
- 2017-12-27 CN CN201721861217.7U patent/CN207764922U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107978108A (en) * | 2017-12-27 | 2018-05-01 | 上海欣能信息科技发展有限公司 | A kind of system and method for electric power terminal device instruction operation troubles |
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