CN101329377B - Electronic system and warning apparatus thereof - Google Patents
Electronic system and warning apparatus thereof Download PDFInfo
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- CN101329377B CN101329377B CN2007101122114A CN200710112211A CN101329377B CN 101329377 B CN101329377 B CN 101329377B CN 2007101122114 A CN2007101122114 A CN 2007101122114A CN 200710112211 A CN200710112211 A CN 200710112211A CN 101329377 B CN101329377 B CN 101329377B
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Abstract
The invention provides an alarming device, comprising an isolating circuit, a first enabling circuit, a second enabling circuit and an output circuit; wherein, the isolating circuit receives a state signal and generates an adjusting signal according to the state signal; the first enabling circuit is electrically connected with the isolating circuit, receives the adjusting signal and generates a first enabling signal according to the adjusting signal; the second enabling circuit is electrically connected with the first enabling circuit, receives the first enabling signal and generate a second enabling signal according to the first enabling circuit; the output circuit is electrically connected with the second enabling circuit, receives the second enabling signal and outputs an alarming signal according to the second enabling signal.
Description
Technical field
The present invention relates to a kind of electronic system and warning device thereof.
Background technology
The functional requirement of electronic equipment is more and more higher, and its required auxiliary device is also more and more to meet multi-functional requirement.Usually by a processor to make the electronic equipment of control maincenter, its processor is as the usefulness of driving, control, detection, indication, warning and communications.If damage on misoperation (failed) or the hardware takes place because of external indefinite factor in this processor, then can make the running of uncontrollable its peripheral auxiliary device of this electronic equipment, for example uncontrollable heating radiator running and cause can't efficiently radiates heat, even when serious, can cause this electronic equipment to work as machine.
For improving said circumstances, warning (alarm) device can be set usually, in this electronic equipment when this processor makes a mistake, to produce caution signal with usefulness, so this warning device has become a member indispensable in this electronic equipment as prompting.
Please refer to shown in Figure 1ly, existing electronic system 1 has a warning device 11, a processor 12, a client system side 13 and an electronic installation 14.This warning device 11 is electrically connected between this processor 12 and this client system side 13, and this processor 12 electrically connects with this electronic installation 14 (a for example fan), and detects the state (for example rotating speed of this fan) of this electronic installation 14.
Referring again to Fig. 2 and shown in Figure 3, the structure of this warning device 11 can be divided into out drain circuit (open drain) or opener polar circuit (open collector) according to the assembly difference of its use usually.
When the structure of this warning device 11 when opening drain circuit, it has one first resistor 111, one second resistor 112, a metal oxide semiconductcor field effect transistor 113, one the 3rd resistor 114 and one first capacitor 115.This first resistor 111 and this second resistor 112 electrically connect with a grid of this metal oxide semiconductcor field effect transistor 113 respectively, and this second resistor 112 electrically connects with the one source pole and an earth terminal of this metal oxide semiconductcor field effect transistor 113 again.The 3rd resistor 114 and this first capacitor 115 drain with one of this metal oxide semiconductcor field effect transistor 113 respectively and electrically connect.
And when the structure of this warning device 11 was the opener polar circuit, it had one the 4th resistor, 116, one bipolar junction transistor 117, one the 5th resistor 118 and one second capacitor 119.This bipolar junction transistor 117 electrically connects with the 4th resistor 116, second capacitor 119 and the 5th resistor 118 respectively, and this second capacitor 119 electrically connects with the 5th resistor 118.
Structure with this warning device 11 is an example for opening drain circuit, please more simultaneously with reference to Fig. 1 and shown in Figure 2, the sensing signal S01 that this processor 12 detects these electronic installations 14 to be producing a status signal S02, and makes this warning device 11 export a caution signal S03 to this client system side 13 according to this status signal S02.
Hold, when this electronic installation 14 was normal condition, then this processor 12 detected this sensing signal S01 of this electronic installation 14, to produce this status signal S02 of high level.This status signal S02 of high level makes these the first transistor 113 conductings (turn on) of this warning device 11, and this caution signal S03 of output low level.This client system side 13 is according to low level this caution signal S03, judging that this processor 12 and this electronic installation 14 are normal conditions, and this electronic installation 14 do not produced any control.
Moreover when this electronic installation 14 was abnormality, then this processor 12 detected this sensing signal S01 of this electronic installation 14, to produce low level this status signal S02.Low level this status signal S02 makes these the first transistor 113 not conductings (turn off) of this warning device 11, and this caution signal S03 of output high level.This client system side 13, decommissions and control this electronic installation 14 to judge that this processor 12 and this electronic installation 14 are abnormality according to this caution signal S03 of high level.
In addition, this processor 12 self also has the generation of abnormality, for example open circuit, short circuit or suspension joint, and this warning device 11 also can produce caution signal S03.When this processor 12 was in abnormality because of short circuit or suspension joint, this status signal S02 was a low level, and made this warning device 11 export this caution signal S03 of high level, and at this moment, then this client system side 13 can learn that running is unusual.
Yet, when this processor 12 is in abnormality because of open circuit or power supply too high (high to Vdd), then this status signal S02 is a high level, make this caution signal S03 of these warning device 11 output low levels, cause client system side 13 to judge that this processor 12 still is in normal condition, thereby cause erroneous judgement disconnected.
The disconnected generation of above-mentioned erroneous judgement is to be abnormality because which kind of device warning device 11 can't judge clearly, and makes this processor 12 can't effectively control the running of this electronic installation 14, therefore may cause this electronic system 1 to work as machine.
How the whence provides a kind of and can judge clearly whether peripheral device is in abnormality because of in this, and electronic system that gives a warning in real time and warning device thereof, has become one of important topic.
Summary of the invention
Because above-mentioned problem, purpose of the present invention can judge clearly for providing a kind of whether peripheral device is in abnormality, and electronic system that gives a warning in real time and warning device thereof.
Edge is for reaching above-mentioned purpose, to comprise a buffer circuit, one first enable circuits, one second enable circuits and an output circuit according to a kind of warning device of the present invention.In the present invention, this buffer circuit receives and adjusts signal according to a status signal to produce one.This first enable circuits and this buffer circuit electrically connect, and receive and according to this adjustment signal to produce one first enable signal.This second enable circuits and this first enable circuits electrically connect, and receive and according to this first enable signal to produce one second enable signal.This output circuit and this second enable circuits electrically connect, and receive and according to this second enable signal to export a caution signal.
For reaching above-mentioned purpose, comprise a processor, a warning device and a system and device according to a kind of electronic system of the present invention.In the present invention, this warning device and this processor electrically connect, and receive and according to a pulse signal or a direct current signal to produce the caution signal of a low level or high level.This system and device then electrically connects with this warning device and this processor respectively, controls signal to this processor to receive and to produce one according to this caution signal.
From the above, electronic system of the present invention, be to utilize this warning device with this buffer circuit, this first enable circuits, this second enable circuits and this output circuit, and by receive and according to this first status signal and/or this second status signal for this pulse signal or direct current signal to produce this caution signal.This kind mode, not only can make this system and device judge peripheral device easily and which kind of state this processor is at present according to this caution signal, more can be when abnormality takes place, no matter be under the state of open circuit, short circuit or suspension joint, correctly send warning signal, to stop the running of this processor or peripheral device in real time, make that because erroneous judgement is disconnected this processor continues to operate the damage that is caused or work as machine to avoid under abnormality, and then promote whole quality.
Description of drawings
Fig. 1 is the synoptic diagram of existing a kind of electronic system;
Fig. 2 is out the schematic equivalent circuit of drain circuit for the warning device of existing electronic system;
Fig. 3 is the schematic equivalent circuit of opener polar circuit for the warning device of existing electronic system;
Fig. 4 is the synoptic diagram according to a kind of electronic system of preferred embodiment of the present invention;
Fig. 5 is the synoptic diagram according to another electronic system of preferred embodiment of the present invention; And
Fig. 6 is the schematic equivalent circuit according to the warning device of the electronic system of preferred embodiment of the present invention.
The reference numeral explanation:
1,2,2A: electronic system 11,22: warning device
111, R1: first resistor 112, R2: second resistor
113, Q1: the first transistor 114, R3: the 3rd resistor
115, C2: first capacitor 116, R4: the 4th resistor
117, Q2: transistor seconds 118, R5: the 5th resistor
119, C3: second capacitor 12,21: processor
13: client system side 14,24: electronic installation
221: 222: the first enable circuits of buffer circuit
23: system and device C1: capacitor
D1: diode Q3: the 3rd transistor
S01, SE: sensing signal S03, S16: caution signal
S02: status signal S11: first status signal
S14: the first enable signal S15: second enable signal
S17: control signal
Embodiment
Hereinafter with reference to correlative type, a kind of electronic system and warning device thereof according to preferred embodiment of the present invention are described.
Please refer to shown in Figure 4ly, the electronic system 2 of the present invention's first preferred embodiment comprises a processor 21, a warning device 22 and a system and device 23.In addition, this electronic system 2 more comprises an electronic installation 24.
In the present embodiment, this processor 21 electrically connects with this warning device 22, and produces one first status signal S11, and this first status signal S11 can be a pulse signal or a direct current signal.When this first status signal S11 was this pulse signal, its frequency was more than the 200Hz.Wherein, this first status signal S11 determines to be this pulse signal or this direct current signal according to the state of this processor 21 own.At this is that state with this processor 21 is when serving as normal (normal) running, then the first status signal S11 is this pulse signal, and when this processor 21 was the state of suspension joint (floating), short circuit (short) or open circuit (open), then this first status signal S11 was an example for this direct current signal.In addition, this processor 21 is a microcontroller or a little process chip on the implementation.
Please be simultaneously with reference to Fig. 4 and shown in Figure 5, wherein, Fig. 5 shows the electronic system 2A of another kind of annexation.This electronic installation 24 of present embodiment, the connected mode of itself and this processor 21 and this warning device 22 is also unrestricted, this processor 21 can be electrically connected between this electronic installation 24 and this warning device 22 (as shown in Figure 4) on the implementation, maybe can be respectively with this electronic installation 24 and 21 direct and these warning device 22 electric connections (as shown in Figure 5) of this processor.
When this processor 21 is electrically connected between this electronic installation 24 and this warning device 22, this processor 21 detects the state of this electronic installation 24, for example: this electronic installation 24 of sensing is to obtain a sensing signal SE, and according to this sensing signal SE producing one second status signal S12 (as shown in Figure 4), be that to be electrically connected between this electronic installation 24 and this warning device 22 with this processor 21 be example at this; When this electronic installation 24 electrically connected with this warning device 22 respectively with this processor 21, then this warning device 22 received respectively by this first status signal S11 of this processor output and this second status signal S12 (as shown in Figure 5) that is exported by this electronic installation 24.
Please more simultaneously with reference to Fig. 4 and shown in Figure 5, this electronic installation 24 of present embodiment can be a fan assembly, a sensing apparatus, a power supply device, a communicator, a flat display apparatus, an indicating device or a pressure-indication means on the implementation.Certainly, this electronic system 2 more can comprise above-mentioned these electronic installations 24 (figure do not show) simultaneously, even these electronic system 2 included a plurality of electronic installations 24 are all identical device, and for example: these electronic installations 24 are all this fan assembly.At this is to be these fan assemblys with this electronic installation 24, and this processor 21 is used for detecting the rotating speed of the motor of this fan assembly, is example (as shown in Figure 4) to produce this second status signal S12.
Please more simultaneously with reference to Fig. 4 and shown in Figure 5, in the present embodiment, this the second status signal S12 that is produced by this this electronic installation 24 of processor 21 sensings, or this second status signal S12 of these electronic installation 24 generations, be to have identical feature and effect, so do not repeat them here with above-mentioned this first status signal S11.And this second status signal S12 and this first status signal S11 difference are that this second status signal S12 determines to be this pulse signal or direct current signal according to the state of this electronic installation 24 own, so at this is that this second status signal S12 is this pulse signal when being the normal operation state with this electronic installation 24; This electronic installation 24 is improper operating state, and for example: when open circuit, short circuit or suspension joint, this second status signal S12 is an example for this direct current signal.
Please more simultaneously with reference to Fig. 4 and shown in Figure 6, Fig. 6 is the schematic equivalent circuit of the warning device 22 of Fig. 4, and this warning device 22 of present embodiment has a buffer circuit 221, one first enable circuits 222, one second enable circuits 223 and an output circuit 224.
In the present embodiment, this buffer circuit 221 has a capacitor C1.Wherein, the end of this capacitor C1 and this processor 21 electrically connect, and the other end and this warning device 22 electrically connect, to receive this first status signal S11 and this second status signal S12 respectively.221 of this buffer circuits produce one according to this first status signal S11 and this second status signal S12 and adjust signal S13.
This first enable circuits 222 electrically connects with this buffer circuit 221, and receive and according to this adjustment signal S13 to produce one first enable signal S14.This of present embodiment first enable signal S14 has a low level or a high level.
In addition, referring again to shown in Figure 6, this first enable circuits 222 has one first resistor R 1, one second resistor R 2, a first transistor Q1 and a transistor seconds Q2.
This other end of this capacitor C1 of one end of this first resistor R 1 and this buffer circuit 221 electrically connects, and the other end ground connection of this first resistor R 1.One end of this second resistor R 2 and a power supply V electrically connect, and the drain electrode of the other end of this second resistor R 2 and this first transistor Q1 electrically connects.This end of the grid of this first transistor Q1 and this first resistor R 1 electrically connects, and receives this adjustment signal S13, and the source ground of this first transistor Q1.The base stage of this transistor seconds Q2 respectively with this second resistor R 2 this in addition the drain electrode of end and this first transistor Q1 electrically connect the emitter grounding of this transistor seconds Q2, and the collection utmost point of this transistor seconds Q2 produces this first enable signal S14.
This first transistor Q1 of present embodiment and this transistor seconds Q2 are respectively a metal oxide semiconductcor field effect transistor (MOSFET) and a bipolar junction transistor (BJT) on the implementation.
Referring again to shown in Figure 4, in the present embodiment, this second enable circuits 223 electrically connects with this first enable circuits 222, and receive and according to this first enable signal S14 to produce one second enable signal S15.This output circuit 224 receives and exports this caution signal S16 according to this second enable signal S15.This of present embodiment second enable circuits 223 can be the adjustable integrator of a resistance-capacitance (R-C adjus table integrator) on the implementation, and this second enable signal S15 has a high level or a low level.
Referring again to shown in Figure 6, in the present embodiment, this second enable circuits 223 has one the 3rd resistor R 3, one the 4th resistor R 4, a diode D1 and one first capacitor C2.One end of the 3rd resistor R 3 and this power supply V electrically connect, and the other end of the 3rd resistor R 3 and this first enable circuits 222 electrically connect, and receive this first enable signal S14.This of the end of this diode D1 and the 3rd resistor R 3 end in addition electrically connects.The end of this first capacitor C2 electrically connects with an end of the other end of this diode D1 and the 4th resistor R 4 respectively, producing this second enable signal S15, and the other end ground connection of the other end of this first capacitor C2 and the 4th resistor R 4.The diode D1 of present embodiment is used for preventing that the electric current adverse current of this second enable circuits 223 is to the 3rd resistor R 3.
224 of this output circuits have one the 5th resistor R 5, one the 3rd transistor Q3 and one second capacitor C3.One end of the 5th resistor R 5 and this power supply V electrically connect.The grid of the 3rd transistor Q3 and this second enable circuits 223 electrically connect, to receive this second enable signal S15.The other end of the drain electrode of the 3rd transistor Q3 and the 5th resistor R 5 electrically connects, and produces this caution signal S16.The source ground of the 3rd transistor Q3.The end of this second capacitor C3 and the drain electrode of the 3rd transistor Q3 electrically connect, and the other end ground connection of this second capacitor C3.The 3rd transistor Q3 of present embodiment is a metal oxide semiconductcor field effect transistor (MOSFET) on the implementation, and this caution signal S16 then has a high level or a low level.
In addition, this buffer circuit 221 of this warning device 22 of present embodiment, this first enable circuits 222, this second enable circuits 223 and this output circuit 224 can be arranged in the controller on the implementation.Anticipate promptly, the internals of this warning device 22 is to make in modular mode, and this controller is such as but not limited to a digitial controller, a program-controlled device or a microprocessor.
This system and device 23 of present embodiment electrically connects with this warning device 22 and this processor 21 respectively, to receive and to produce a control signal S17 to this processor 21 according to this caution signal S16.This system and device 23 is arranged in the middle of the client on the implementation.
Please, below will be described at the action of this electronic system 2 more simultaneously with reference to Fig. 4 and shown in Figure 6.Its action is as follows:
When this electronic system 2 in normal operation state following time, this processor 21 produces this first status signal S11, and detect this electronic installation 24 to produce this second status signal S12, this moment, this first status signal S11 and this second status signal S12 were respectively this pulse signal.
This buffer circuit 221 of this warning device 22 receives by this capacitor C1 and adjusts signal S13 according to this first status signal S11 to produce one.In this first enable circuits 222, the grid of this first transistor Q1 receives and makes this first transistor Q1 conducting according to this adjustment signal S13, and at the signal of the drain electrode output low level of this first transistor Q1 to this transistor seconds, and make not conducting of this transistor seconds Q2.At this moment, this first enable signal S14 of this collection utmost point output high level of this transistor seconds Q2.This second enable circuits 223 is according to this first enable signal S14, and by this power supply V by 3 pairs of these first capacitors of the 3rd resistor R C2 charging, with this second enable signal S15 of output high level to this output circuit 224.So the 3rd transistor Q3 conducting according to this second enable signal S15 of this output circuit 224 is at this caution signal S16 of the drain electrode output low level of the 3rd transistor Q3.
At this moment, because of this caution signal S16 is a low level, so this system and device 23 receives and learn that according to this caution signal S16 this processor 21 is all normal with these electronic installation 24 runnings, then this system and device 23 is kept and is produced this control signal S17 to this processor 21, and makes this processor 21 and this electronic installation 24 continue running.
Please more simultaneously with reference to Fig. 4 and shown in Figure 6, when this processor 21 and this electronic installation 24 of this electronic system 2, or one of them is when being in abnormality, and then the manner of execution of this electronic system 2 is as follows:
At this is abnormality with this electronic installation 24 then, and this processor 21 is an example for normal condition, and when being normal condition owing to this processor 21, the manner of execution of this electronic system 2 is discussed in the above-described embodiments, so do not give unnecessary details at this.
When this electronic installation 24 was in abnormality, then these processor 21 these electronic installations 24 of detection were that this direct current signal is to this buffer circuit 221 to produce this second status signal S12.At this moment, this buffer circuit 221 produces low level this adjustment signal S13 by this capacitor C1 isolates this second status signal S12.This first transistor Q1 of this first enable circuits 222 should adjust signal S13 and not conducting according to low level, at this moment, this transistor seconds Q2 then receives this power supply V and conducting via this second resistor R 2, and at this first enable signal S14 of the drain electrode output low level of this transistor seconds Q2.This second enable circuits 223 receives this first enable signal S14, and this moment, this first capacitor C2 discharged to the 4th resistor R 4.And this output circuit 224 can't make the 3rd transistor Q3 conducting because of this second enable signal S15, so 5 pairs second capacitor C3 chargings of the 5th resistor R this moment, with this caution signal S16 of output high level.
At this moment, this system and device 23 receives and learns that according to this caution signal S16 this electronic installation 24 is unusual running, so this system and device 23 this control signal of generation S17 control this electronic installation 24 to this processor 21 and decommission, and cause damage or make electronic system 2 work as machine when continuing to operate again to prevent this electronic installation 24.Certainly this system and device 23 also can change and 24 electric connections of this electronic installation, so that this electronic installation 24 decommissions according to this control signal S17.
In addition; this electronic system 2 can be in normal or abnormality according to this first status signal S11 and/or this second status signal S12 clearly to judge which kind of device by this warning device 22; and when abnormality, this system and device 23 can be exported this control signal S17 immediately to stop the running of this processor 21 or this electronic installation 24.
In sum, electronic system of the present invention is between this processor and this system and device or between this electronic installation and this system and device, electrically connect this warning device, and this processor produces this first status signal, and this warning device receives and according to this first status signal and/or resulting this second status signal of this electronic installation certainly, to produce this caution signal,, this system and device controls signal to this processor and producing this according to this caution signal.
Compare with prior art, the present invention utilizes this warning device with this buffer circuit, this first enable circuits, this second enable circuits and this output circuit, and by receive and according to this first status signal and/or this second status signal for this pulse signal or direct current signal to produce this caution signal.This kind mode not only can make this system and device judge this processor easily according to this caution signal and which kind of state this electronic installation is at present, no matter in the time of more can working as the abnormality generation is under the state of open circuit, short circuit or suspension joint, correctly send warning signal, to stop the running of this processor or this electronic installation in real time, make this processor or this electronic installation under abnormality and continue the damage that running caused or work as machine to avoid because erroneous judgement is disconnected, and then promote the quality of integral body.
The above only is an illustrative, but not is restricted person.Anyly do not break away from spirit of the present invention and category, and, all should be included in the claim of the present invention its equivalent modifications of carrying out or change.
Claims (19)
1. warning device comprises:
One buffer circuit, its reception and foundation one status signal are adjusted signal to produce one;
One first enable circuits, itself and this buffer circuit electrically connects, and receive and according to this adjustment signal to produce one first enable signal;
One second enable circuits, itself and this first enable circuits electrically connects, and receive and according to this first enable signal to produce one second enable signal; And
One output circuit, itself and this second enable circuits electrically connects, and receive and according to this second enable signal to export a caution signal.
2. warning device as claimed in claim 1, wherein, this buffer circuit has a capacitor.
3. warning device as claimed in claim 1, wherein, this status signal is a pulse signal or a direct current signal.
4. warning device as claimed in claim 1, wherein, the frequency of this status signal is more than the 200Hz.
5. warning device as claimed in claim 1, wherein, this first enable signal or this second enable signal have a low level or a high level.
6. warning device as claimed in claim 1, wherein, this first enable circuits more comprises:
One first resistor, one end and this buffer circuit electrically connect, its other end ground connection;
One second resistor, an one end and a power supply electrically connect;
One the first transistor, this end of one grid and this first resistor electrically connect to receive this adjustment signal, and the one drain electrode electrically connects the one source ground with the other end of this second resistor; And
One transistor seconds, one base stage electrically connect with the other end of this second resistor and this drain electrode of this first transistor respectively, the one emitter grounding, and the one collection utmost point produces this first enable signal.
7. warning device as claimed in claim 6, wherein, this first transistor is a metal oxide semiconductcor field effect transistor, and this transistor seconds is a bipolar junction transistor.
8. warning device as claimed in claim 1, wherein, this second enable circuits is the adjustable integrator of a resistance-capacitance.
9. warning device as claimed in claim 1, wherein, this second enable circuits comprises:
One the 3rd resistor, an one end and a power supply electrically connect, and its other end and this first enable circuits electrically connect to receive this first enable signal;
One diode, this of one end and the 3rd resistor end in addition electrically connect;
One the 4th resistor, one end ground connection; And
One first capacitor, one end electrically connect with the other end of this diode and the other end of the 4th resistor respectively, to produce this second enable signal, its other end ground connection.
10. warning device as claimed in claim 1, wherein, this output circuit comprises:
One the 5th resistor, an one end and a power supply electrically connect;
One the 3rd transistor, one grid and this second enable circuits electrically connect to receive this second enable signal, and the one drain electrode electrically connects to produce this caution signal, the one source ground with the other end of the 5th resistor; And
One second capacitor, one end and the 3rd transistorized should the drain electrode electrically connect its other end ground connection.
11. warning device as claimed in claim 10, wherein, the 3rd transistor is a metal oxide semiconductcor field effect transistor.
12. warning device as claimed in claim 1, wherein, this caution signal has a high level or a low level.
13. warning device as claimed in claim 1, wherein, this buffer circuit, this first enable circuits, this second enable circuits and this output circuit are to be incorporated in a controller, a digitial controller, a program-controlled device or the microprocessor.
14. an electronic system comprises:
One processor produces one first status signal;
One warning device, electrically connect with this processor, and receive and according to this first status signal and from this electronic system outside resulting second status signal, or certainly this electronic system outward resulting second status signal to produce the caution signal of a low level or high level; And
One system and device electrically connects with this warning device and this processor respectively, controls signal to this processor to receive and to produce one according to this caution signal.
15. electronic system as claimed in claim 14, wherein, this processor produces this pulse signal or this direct current signal.
16. electronic system as claimed in claim 14, wherein, the frequency of this pulse signal is more than the 200Hz.
17. electronic system as claimed in claim 14, it more comprises an electronic installation, electrically connect with this warning device and this processor respectively, or this processor is electrically connected between this electronic installation and this warning device, and produces this pulse signal or this direct current signal.
18. electronic system as claimed in claim 17, wherein, this electronic installation is a fan assembly, a sensing apparatus, a power supply device, a communicator, a flat display apparatus, an indicating device or a pressure-indication means.
19. electronic system as claimed in claim 14, wherein, this processor is a microcontroller or a little process chip.
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| CN2007101122114A CN101329377B (en) | 2007-06-21 | 2007-06-21 | Electronic system and warning apparatus thereof |
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|---|---|---|---|
| CN2007101122114A CN101329377B (en) | 2007-06-21 | 2007-06-21 | Electronic system and warning apparatus thereof |
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| CN101329377A CN101329377A (en) | 2008-12-24 |
| CN101329377B true CN101329377B (en) | 2011-04-06 |
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| CN108021052B (en) * | 2016-11-01 | 2021-10-08 | 和舰科技(苏州)有限公司 | Equipment fault monitoring system and method based on single chip microcomputer |
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| CN1909318A (en) * | 2005-08-02 | 2007-02-07 | 台达电子工业股份有限公司 | Electrical power monitoring device for fan |
| CN2852216Y (en) * | 2005-11-09 | 2006-12-27 | 浪潮电子信息产业股份有限公司 | Intelligent type fan detection control instrument |
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| CN101329377A (en) | 2008-12-24 |
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