CN102270366A - Audible alarm device, method for monitoring audible alarm device and anaesthesia machine - Google Patents
Audible alarm device, method for monitoring audible alarm device and anaesthesia machine Download PDFInfo
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- CN102270366A CN102270366A CN2010106205755A CN201010620575A CN102270366A CN 102270366 A CN102270366 A CN 102270366A CN 2010106205755 A CN2010106205755 A CN 2010106205755A CN 201010620575 A CN201010620575 A CN 201010620575A CN 102270366 A CN102270366 A CN 102270366A
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- audible alarm
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- power amplification
- loudspeaker
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Abstract
The invention provides an audible alarm device, a method for monitoring the audible alarm device and an anaesthesia machine, wherein the audible alarm device comprises a power amplification circuit and a loudspeaker connected to the power amplification circuit; the audible alarm device further comprises a resistor, wherein the first end of the resistor is connected with the grounding pin of the power amplification circuit and the second end thereof is a measuring terminal. The audible alarm device provided by the invention is used for solving the problem that a loudspeaker cannot reflect that a machine goes wrong in case the machine goes wrong and the loudspeaker is damaged. In the technical proposal provided by the invention, a detection circuit is connected to the loudspeaker and the signal is amplified. The present working state of the loudspeaker can be real-time reflected by the detection on the obtained electric signal. The fault of the loudspeaker and the fault of the circuit are found in time, which decreases risk and enhances safety performance.
Description
Technical field
The present invention relates to the monitoring method and the Anesthesia machine of a kind of audible alarm unit, audible alarm unit.
Background technology
Anesthesia machine is that intra-operative guiding patient sucks anesthetic gases and the utility appliance of carrying out mechanical ventilation, is the medicine equipment that often uses in kind of the operation.Loudspeaker on the Anesthesia machine can be sounded and be detected the state of Anesthesia machine, when Anesthesia machine breaks down, and the loudspeaker warning that can pipe.Be prompted to the anesthetist in the mode of sound and arouse attention, in display device prompt messages is arranged also simultaneously.If but warning circuit has broken down, and not do not detect, other warning can not in time be found, make the reliability deficiency of Anesthesia machine fault alarm.
The problem that has the reliability deficiency of Anesthesia machine fault alarm in the prior art for this problem, does not propose effective solution at present as yet.
Summary of the invention
Fundamental purpose of the present invention provides the monitoring method and the Anesthesia machine of a kind of audible alarm unit, audible alarm unit, to solve the problem of the reliability deficiency of Anesthesia machine fault alarm in the prior art.
To achieve these goals, according to an aspect of the present invention, provide a kind of audible alarm unit.
Audible alarm unit of the present invention comprises power amplification circuit and the loudspeaker that is connected to this power amplification circuit, and wherein audible alarm unit also comprises resistance, and first end of this resistance is connected with the pin over the ground of power amplification circuit, and second end is a measuring junction.
Further, the resistance of this resistance is 1 Europe.
Further, second end of resistance is connected with the input end of amplifying circuit, and the output terminal of amplifying circuit is in series with another resistance.
According to another aspect of the present invention, a kind of audible alarm unit also is provided, comprise power amplification circuit, be connected to the loudspeaker and the resistance of this power amplification circuit, first end of resistance is connected with the pin over the ground of power amplification circuit, second end of resistance is connected with the input end of amplifying circuit, and the output terminal of amplifying circuit is connected with another resistance.
According to a further aspect of the invention, provide a kind of monitoring method of audible alarm unit, wherein audible alarm unit comprises interconnected power amplification circuit and loudspeaker, and this method comprises: the electrical resistance collection power amplification circuit is the voltage of pin over the ground; Determine the state of audible alarm unit according to voltage.
Further, determine that according to voltage the state of audible alarm unit comprises: amplifying circuit amplifies voltage and exports via another resistance; Measurement is via the voltage of another resistance output; Determine the state of audible alarm unit according to the voltage that measures.
According to a further aspect of the invention, also provide a kind of Anesthesia machine, comprised the audible alarm unit of technique scheme.
According to technical scheme of the present invention, on loudspeaker, connect a testing circuit, and detection signal is amplified.Just can real time reaction go out the loudspeaker current working state by detection to the gained electric signal.In time find the fault of loudspeaker, in time find the fault of circuit, reduced risk, improved security performance.
Description of drawings
Figure of description is used to provide further understanding of the present invention, constitutes the application's a part, and illustrative examples of the present invention and explanation thereof are used to explain the present invention, do not constitute improper qualification of the present invention.In the accompanying drawings:
Fig. 1 is a synoptic diagram of placing the audible alarm unit that detects resistance on the power amplification circuit pin;
Fig. 2 is a synoptic diagram of placing the audible alarm unit that detects resistance, amplifying circuit and another resistance on the power amplification circuit pin;
Fig. 3 is a process flow diagram of placing the monitoring method of the audible alarm unit that detects resistance on the power amplification circuit pin; And
Fig. 4 is a process flow diagram of placing the monitoring method of the audible alarm unit that detects resistance, amplifying circuit and another resistance on the power amplification circuit pin.
Embodiment
Need to prove that under the situation of not conflicting, embodiment and the feature among the embodiment among the application can make up mutually.Describe the present invention below with reference to the accompanying drawings and in conjunction with the embodiments in detail.
Fig. 1 is a synoptic diagram of placing the audible alarm unit that detects resistance on the power amplification circuit pin.
As shown in Figure 1, audible alarm unit comprises power amplification circuit 10 and is connected to the loudspeaker 13 of this power amplification circuit 10, wherein audible alarm unit also comprises detection resistance 11, this first end that detects resistance 11 is connected with the pin over the ground of power amplification circuit 10, second end is a measuring junction, detects the electric current by this resistance 11.This resistance string is associated on the power amplifier pin over the ground, and the electric current that flows through power amplifier finally flows on the ground by this resistance, so can produce certain pressure drop on this resistance, detects the state that this voltage just can be known loudspeaker.This resistance 11 can not be too big, and resistance 11 is too big, and pressure drop is increased, and causes the power amplifier cisco unity malfunction.The value that representative value can be got this resistance 11 is 1 Europe.
Generally speaking, the value of this resistance 11 is smaller, and the pressure drop that resistance 11 produces is also little, and the measuring voltage value is not convenient especially, and also out of true of numerical value.The electric current that flows through this resistance 11 along with the variation of sound changes, voltage on the resistance 11 also changes like this, is convenient to detect, and this voltage is connected a gate circuit through amplifying the back, be converted into the IO amount and detect, can eliminate electric current like this and change the influence that brings.
Fig. 2 is a synoptic diagram of placing the audible alarm unit that detects resistance, amplifying circuit and another resistance on the power amplification circuit pin.
As shown in Figure 2, this audible alarm unit comprises power amplification circuit 10, is connected to the loudspeaker 13 and the resistance 11 of this power amplification circuit, first end of resistance 11 is connected with the pin over the ground of power amplification circuit 10, second end of resistance 11 is connected with the input end of amplifying circuit, and the output terminal of amplifying circuit is connected with another resistance 12.By on loudspeaker, extracting sampled signal, then amplify through amplifying circuit, detect the magnitude of voltage on this resistance 12, extrapolate the work at present state of loudspeaker again according to these numerical value.Simultaneously, detection resistance 11 is got representative value 1 Ω and also is applicable to this audible alarm unit.
The present invention also provides the monitoring method of audible alarm unit.
Fig. 3 is a process flow diagram of placing the monitoring method of the audible alarm unit that detects resistance on the power amplification circuit pin.
As shown in FIG.: audible alarm unit comprises interconnected power amplification circuit 10 and loudspeaker 13, and its method flow is:
S301: resistance 11 is gathered power amplification circuit 10 voltage of pin over the ground;
S302: the state of determining audible alarm unit according to voltage.
The mode of pin voltage is a lot of over the ground wherein to gather power amplification circuit 10, directly measure or indirectly numerical value derive.The approach of determining the state of audible alarm unit according to voltage also has multiple, can determine that directly the various electrical parameters of audible alarm unit determine state by voltage, also can determine the state of audible alarm unit by other auxiliary circuit.
Fig. 4 is a process flow diagram of placing the monitoring method of the audible alarm unit that detects resistance, amplifying circuit and another resistance on the power amplification circuit pin.As shown in FIG.: audible alarm unit comprises interconnected power amplification circuit 10 and loudspeaker 13, and its method flow is:
S3021: amplifying circuit VCC amplifies voltage and exports via another resistance 12;
S3022: measure voltage via another resistance 12 outputs;
S3023: the state of determining described audible alarm unit according to the voltage that measures.
In the shown flow process of present embodiment, mainly be the state of determining audible alarm unit by auxiliary circuit.Electrical resistance collection power amplification circuit 10 is the voltage of pin over the ground, this voltage is via the input end input of amplifying circuit, the output terminal of amplifying circuit is connected with another resistance 12, by the output voltage of another resistance 12 of direct or indirect measurement, extrapolate the loudspeaker current working state according to these numerical value again.
Detecting resistance string is associated on the power amplification circuit pin over the ground, the electric current that flows through power amplification circuit 10 finally detects resistance 11 by this, so detecting resistance 11, this can produce certain voltage drop, this resistance 11 can not be too big, the too big power amplification circuit that influences is worked, too for a short time being not easy to measured and taken a sample, and the value that representative value can be got this resistance 11 is 1 Europe, and resistance value is that 1 Europe also is applicable to the value that detects resistance in the process flow diagram shown in Figure 3 simultaneously.
The present invention also provides a kind of Anesthesia machine, comprises above-described audible alarm unit in the Anesthesia machine.Audible alarm unit of the present invention not only is applicable to the Anesthesia machine of multiple model, also can be applicable in other circuit that need carry out the loudspeaker detection.When loudspeaker break down, just can in time feed back the current working state of loudspeaker by testing circuit, played the effect of standby loudspeaker, strengthened detection protective effect to circuit.Security requirement than higher medicine equipment in, the present invention has strengthened security performance, it has embodied with the obvious advantagely.
The above is the preferred embodiments of the present invention only, is not limited to the present invention, and for a person skilled in the art, the present invention can have various changes and variation.Within the spirit and principles in the present invention all, any modification of being done, be equal to replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (7)
1. an audible alarm unit comprises power amplification circuit and the loudspeaker that is connected to this power amplification circuit, it is characterized in that described audible alarm unit also comprises:
Resistance, first end of this resistance is connected with the pin over the ground of described power amplification circuit, and second end is a measuring junction.
2. audible alarm unit according to claim 1 is characterized in that, the resistance of described resistance is 1 Europe.
3. audible alarm unit according to claim 1 and 2 is characterized in that, second end of described resistance is connected with the input end of amplifying circuit, and the output terminal of described amplifying circuit is in series with another resistance.
4. the monitoring method of an audible alarm unit, described audible alarm unit comprises interconnected power amplification circuit and loudspeaker, it is characterized in that, described method comprises:
The described power amplification circuit of electrical resistance collection is the voltage of pin over the ground;
Determine the state of described audible alarm unit according to described voltage.
5. method according to claim 4 is characterized in that, the resistance of described resistance is 1 Europe.
6. according to claim 4 or 5 described methods, it is characterized in that, determine that according to described voltage the state of described audible alarm unit comprises:
Amplifying circuit amplifies described voltage and exports via another resistance;
Measurement is via the voltage of described another resistance output;
Determine the state of described audible alarm unit according to the voltage that measures.
7. an Anesthesia machine is characterized in that, comprises the described audible alarm unit of claim 1,2 or 3.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010106205755A CN102270366A (en) | 2010-12-31 | 2010-12-31 | Audible alarm device, method for monitoring audible alarm device and anaesthesia machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010106205755A CN102270366A (en) | 2010-12-31 | 2010-12-31 | Audible alarm device, method for monitoring audible alarm device and anaesthesia machine |
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| Publication Number | Publication Date |
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| CN102270366A true CN102270366A (en) | 2011-12-07 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2010106205755A Pending CN102270366A (en) | 2010-12-31 | 2010-12-31 | Audible alarm device, method for monitoring audible alarm device and anaesthesia machine |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103893867A (en) * | 2012-12-27 | 2014-07-02 | 北京谊安医疗系统股份有限公司 | Failure warning system and method for respirators |
| CN104874061A (en) * | 2014-02-28 | 2015-09-02 | 北京谊安医疗系统股份有限公司 | Respirator speaker state detection method and device |
| CN110136371A (en) * | 2018-02-09 | 2019-08-16 | 沅圣科技股份有限公司 | Bell ring control device and its control method |
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| JPH08317498A (en) * | 1995-05-23 | 1996-11-29 | Toa Corp | Inspection device for speaker line |
| CN1655649A (en) * | 2004-02-10 | 2005-08-17 | 伯斯有限公司 | Detecting connectivity of a speaker |
| CN1750420A (en) * | 2004-09-16 | 2006-03-22 | 天津市明珠电器公司 | Detecting control circuit for two-wire multiple signal transmission speaker in public broadcast system |
| CN2783677Y (en) * | 2005-01-18 | 2006-05-24 | 梁松原 | Fault detector for louderspeakers of broad casting line |
| CN2822060Y (en) * | 2005-10-10 | 2006-09-27 | 海信集团有限公司 | Sound output power monitor limit circuit and audio-video frequency device having said circuit |
| CN2854616Y (en) * | 2005-12-09 | 2007-01-03 | 天津先唯铁路电子设备有限公司 | Fault locating device for railway loudspeaker |
| CN201548651U (en) * | 2009-11-01 | 2010-08-11 | 杨清海 | Voice wiring harness fault detector |
| CN201616906U (en) * | 2009-06-19 | 2010-10-27 | 中山市天键电子工业有限公司 | Polarity test device for loudspeakers |
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2010
- 2010-12-31 CN CN2010106205755A patent/CN102270366A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH08317498A (en) * | 1995-05-23 | 1996-11-29 | Toa Corp | Inspection device for speaker line |
| CN1655649A (en) * | 2004-02-10 | 2005-08-17 | 伯斯有限公司 | Detecting connectivity of a speaker |
| CN1750420A (en) * | 2004-09-16 | 2006-03-22 | 天津市明珠电器公司 | Detecting control circuit for two-wire multiple signal transmission speaker in public broadcast system |
| CN2783677Y (en) * | 2005-01-18 | 2006-05-24 | 梁松原 | Fault detector for louderspeakers of broad casting line |
| CN2822060Y (en) * | 2005-10-10 | 2006-09-27 | 海信集团有限公司 | Sound output power monitor limit circuit and audio-video frequency device having said circuit |
| CN2854616Y (en) * | 2005-12-09 | 2007-01-03 | 天津先唯铁路电子设备有限公司 | Fault locating device for railway loudspeaker |
| CN201616906U (en) * | 2009-06-19 | 2010-10-27 | 中山市天键电子工业有限公司 | Polarity test device for loudspeakers |
| CN201548651U (en) * | 2009-11-01 | 2010-08-11 | 杨清海 | Voice wiring harness fault detector |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103893867A (en) * | 2012-12-27 | 2014-07-02 | 北京谊安医疗系统股份有限公司 | Failure warning system and method for respirators |
| CN103893867B (en) * | 2012-12-27 | 2016-04-20 | 北京谊安医疗系统股份有限公司 | A kind of fault alarm method of respirator |
| CN104874061A (en) * | 2014-02-28 | 2015-09-02 | 北京谊安医疗系统股份有限公司 | Respirator speaker state detection method and device |
| CN110136371A (en) * | 2018-02-09 | 2019-08-16 | 沅圣科技股份有限公司 | Bell ring control device and its control method |
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Application publication date: 20111207 |