CN203588551U - Recognition and warning circuit - Google Patents
Recognition and warning circuit Download PDFInfo
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- CN203588551U CN203588551U CN201320561150.0U CN201320561150U CN203588551U CN 203588551 U CN203588551 U CN 203588551U CN 201320561150 U CN201320561150 U CN 201320561150U CN 203588551 U CN203588551 U CN 203588551U
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Abstract
The utility model relates to a recognition and warning circuit. The circuit mainly comprises 1 to N comparison units, 1 to N analog switch units and 1 to N warning units. When the circuit is powered by a power supply, and a user impales a piece of conductive cloth by using a metal needle, the comparison unit connected with the piece of conductive cloth works, and the corresponding warning unit is triggered by the analog switch unit to indicate whether the impalement is correct. When the user impales 1 to N layers of conductive cloth by using the metal needle, the comparison units and the warning units start to work. For example, when the second layer of conductive cloth is impaled and the third layer of conductive cloth is not impaled, a corresponding diode or buzzer of the warning unit works to indicate whether the operation is correct.
Description
Technical field
The utility model belongs to the built-in identification of medical teaching device and warning circuit, relates in particular to identification and warning circuit in a kind of acupuncture instructional device.
Background technology
At present in the acupuncture training instructional device in teaching and clinic process, in acupuncture injection site, multilayer conductive cloth is housed, when pinprick arrives conductive fabric, if depth of needling is correct, the green light of circuit control lights or certain auditory tone cues, if acupuncture is crossed, dark red lantern festival lights or certain audible alarm.
What it adopted is resistance current limliting method principle.Because acupuncture simulated solution is aqueous medium, water is electric conductor, when the injection water of past acupuncture position (as the muscle layer of Muscle Simulation injection), although pin is not yet pricked the conductive fabric second layer, but due to the electric action of water, can make the direct conducting in upper and lower two-layer detection zone, can change the resistance value in circuit simultaneously, easily affect testing result, the phenomenons such as prompting, false alarm make the mistake.Cause detection accuracy low, error is large, and error rate uprises, and makes student be in the environment that a kind of error rate is high and obtains the acupuncture technical ability praising, and has increased greatly the risk of clinical treatment and doctors and patients' occurrence probability.
More existing needled product, conventionally at simulate muscular injecting layer, settle two-layer conductive fabric, to conductive fabric, be communicated with power supply, when metal needle punctures respectively through two-layer conductive fabric, the preset alarming device of this needled product can send the warning of " mistake " or " correctly ", but when there is a lot of simulate injection liquid between two-layer conductive fabric, two-layer conductive fabric can be connected equally, trigger attention device is started working, and now " rub-out signal " has been passed to the people who uses this product.
Summary of the invention
The purpose of this utility model is to be provided for one identification and the warning circuit of acupuncture instructional device, allows medico can train and grasp correct clinical skill.
A kind of identification and warning circuit, is characterized in that: comprise
1 ~ N comparing unit, mainly comprises a voltage comparator, is used for differentiating and the voltage that compares two ends input, produces the input voltage of warning unit simultaneously;
1 ~ N warning unit, mainly comprises warning circuit and electronic warning element, after receiving comparing unit output voltage, triggers the work of corresponding electronic warning element;
Described one identification and warning circuit also comprise 1 ~ N analog switch unit controlling respectively 1 ~ N warning cell operation state;
1 wherein said ~ N comparing unit is connected in respectively 1 ~ N warning unit by 1 ~ N analog switch unit respectively.
"+" of described comparing unit inputs by electric resistance partial pressure, and "-" input connects conductivity detection end, and output is connected with analog switch unit;
The current switching of described analog switch unit control warning unit, its break-make is determined by the output voltage of each voltage comparator;
Further,
Described analog switch unit adopts NPN triode;
Described analog switch unit can also adopt PNP triode;
The base stage of described analog switch unit is connected to next voltage comparator output terminal;
Described analog switch unit can also be that emitter-base bandgap grading is connected to next voltage comparator output terminal;
Current limiting resistance between the base stage of described analog switch unit and the output terminal of next voltage comparator;
Described analog switch unit can also be current limiting resistance between emitter-base bandgap grading and the output terminal of next voltage comparator;
Base stage or the emitter grounding of N analog switch unit in described 1 ~ N analog switch unit;
Described electronic warning element is light emitting diode;
Described electronic warning element can also be hummer.
When described one identification and the external conductive fabric of warning circuit, comparing unit and analog switch unit electrically connect with warning unit again, and when user pierces through 1 ~ N layer conductive fabric with metal needle, comparing unit is started working with warning unit; While or not the 3rd layer of conductive fabric when the 2nd layer of conductive fabric pierced through, the warning corresponding light emitting diode in unit or hummer work, whether prompting operation is correct.
The beneficial effects of the utility model are, it can help the correct puncture technical ability of students, avoids student to form wrong understanding and wrong technical ability.
Accompanying drawing explanation
Fig. 1: a kind of identification and warning circuit schematic diagram simple in structure.
Fig. 2: a kind of identification and the simple and easy schematic diagram of warning circuit circuit.
Fig. 3: a kind of identification and warning circuit circuit easy structure schematic diagram.
1, power supply; 2, multilayer conductive cloth; 3, comparing unit; 4, analog switch unit; 5, warning unit.
Embodiment
Below in conjunction with accompanying drawing, be described further.
As shown in Figure 3, a kind of identification and warning circuit, it mainly comprises 1 ~ N comparing unit 3,1 ~ N analog switch unit 4 and 1 ~ N warning unit 5, when powering through power supply 1, when user uses metal needle to pierce through conductive fabric, work with the comparing unit 3 that conductive fabric 2 electrically connects, trigger corresponding warning unit 5 subsequently work through analog switch unit 4, whether indication acupuncture is correct.
As shown in Figure 1, 2, public conductive fabric (P2.1) is connected on to positive source, ground floor conductive fabric (P2.2) connects "+" end of voltage comparator (U1A), second layer conductive fabric (P2.3), zone errors/exclusion area conductive fabric (P2.4) connect "+" end of another voltage comparator (U1B), and supply voltage is connected on "-" end of each voltage comparator after electric resistance partial pressure.The voltage point pressing out only need be a little less than supply voltage.Between the output of two-stage voltage comparator, by triode, connect, output is not respectively disturbed.
The 1st layer:
When pinprick arrives ground floor, P2.2 and P2.1 conducting, the 3 pin voltages of U1 are supply voltage, are greater than the voltage of 2 pin, 1 pin output high level.Now, toward model position water filling, the resistance between P2.2 and P2.3 can become greatly, but as long as do not prick the second layer, 5 pin voltages of comparer all can be lower than 6 pin voltages, and 7 pin are output as low.Now PNP triode Q2 conducting, C pin high level, D1 lamp is bright.Not conducting of Q1, D3 does not work, and LS1 does not report to the police;
The 2nd layer:
When pinprick arrives the second layer (or wrong layer), P2.3(or P2.4) and P2.1 conducting, 5 pin voltages of comparer are supply voltage, are greater than the voltage of 6 pin, 7 pin output high level.Q1 conducting, the C end of Q1 is low level, and D3 lamp is bright, and LS1 reports to the police.Now the E of Q2 end is still high level, and R6 plays metering function, E end and poor its forward voltage that is less than of B terminal voltage of Q2, and not conducting of Q2, D1 lamp goes out;
Extend to multilayer, as shown in Figure 2:
The 3rd layer: the not direct ground connection of the E pin of triode Q1, but connect a current-limiting resistance, receive again in the output of third level comparer, the E end ground connection of Q3, other is identical with the method for designing of second level comparer.When pin is not yet pricked the 3rd layer, 10 pin of U1C can be used resistance value to become large owing to injecting like this, 10 pin voltage <9 pin voltages, and 8 pin are output as low level, and Q1 is conducting still, not conducting of Q3, red light is still bright, and amber light does not work.There will not be mistake indication.When three layers of pinpricks to the, 10 pin (+) of U1C and outermost layer conducting (voltage is 9V), 9 pin are due to electric resistance partial pressure, voltage <9V, 8 pin output high level, Q3 conducting, D4 amber light is bright.Simultaneously because 8 pin and 7 pin are all high level, pressure reduction is not enough to allow Q1 conducting, and red light goes out;
The 4th layer: the not direct ground connection of the E pin of triode Q3, connects a current-limiting resistance and receive in the output of fourth stage comparer again, with the connection of the third level.Principle is same.During 4 layers of pinpricks to the, Lan Dengliang, amber light goes out.
When user pierces through 1 ~ N layer conductive fabric with metal needle, comparing unit is started working with warning unit.As: while or not the 3rd layer of conductive fabric when the 2nd layer of conductive fabric pierced through, the warning corresponding light emitting diode in unit or hummer work, whether prompting operation is correct.
Above-mentionedly as an example of 4 layers of conductive coating structure example, set forth, but the circuit structure of the 5th layer and N layer and upper principle be with postponing, but for the powered battery with current, be also difficult for application to too many layer.
Claims (8)
1. identification and a warning circuit, is characterized in that: comprise
1 ~ N comparing unit, mainly comprises a voltage comparator, and its "+" inputs by electric resistance partial pressure, "-" input connects conductivity detection end, output is connected with analog switch unit, is used for differentiating and the voltage that compares two ends input, produces the input voltage of warning unit simultaneously;
1 ~ N warning unit, mainly comprises warning circuit and electronic warning element, after receiving comparing unit output voltage, triggers the work of corresponding electronic warning element;
Described one identification and warning circuit also comprise 1 ~ N analog switch unit controlling respectively 1 ~ N warning cell operation state, control the current switching of warning unit, and its break-make is determined by the output voltage of each voltage comparator;
1 wherein said ~ N comparing unit is connected in respectively 1 ~ N warning unit by 1 ~ N analog switch unit respectively.
2. a kind of identification according to claim 1 and warning circuit, is characterized in that: described analog switch unit adopts NPN triode.
3. a kind of identification according to claim 1 and warning circuit, is characterized in that: described analog switch unit can also adopt PNP triode.
4. according to one identification and warning circuit described in claim 1 or 2 or 3, it is characterized in that: described analog switch base stage is connected to next voltage comparator output terminal.
5. according to one identification and warning circuit described in claim 1 or 2 or 3, it is characterized in that: described analog switch can also be that emitter-base bandgap grading is connected to next voltage comparator output terminal.
6. a kind of identification according to claim 1 and warning circuit, is characterized in that: base stage or the emitter grounding of N analog switch unit in described 1 ~ N analog switch unit.
7. a kind of identification according to claim 1 and warning circuit, is characterized in that: described warning unit is light emitting diode.
8. a kind of identification according to claim 1 and warning circuit, is characterized in that: described warning unit can also be hummer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320561150.0U CN203588551U (en) | 2013-09-11 | 2013-09-11 | Recognition and warning circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320561150.0U CN203588551U (en) | 2013-09-11 | 2013-09-11 | Recognition and warning circuit |
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| Publication Number | Publication Date |
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| CN203588551U true CN203588551U (en) | 2014-05-07 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201320561150.0U Expired - Lifetime CN203588551U (en) | 2013-09-11 | 2013-09-11 | Recognition and warning circuit |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105590530A (en) * | 2014-10-21 | 2016-05-18 | 天津市医学堂科技有限公司 | Proximity detection and application technology-based first-aid transfer model |
-
2013
- 2013-09-11 CN CN201320561150.0U patent/CN203588551U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105590530A (en) * | 2014-10-21 | 2016-05-18 | 天津市医学堂科技有限公司 | Proximity detection and application technology-based first-aid transfer model |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee |
Owner name: TIANJIN TIANYAN TECHNOLOGY CO., LTD. Free format text: FORMER NAME: TIANJIN TELLYES SCIENTIFIC CO., LTD. |
|
| CP01 | Change in the name or title of a patent holder |
Address after: Haitai Huayuan Industrial Zone Binhai West Road 300384 Tianjin City No. 18 West 6-3F Patentee after: TELLYES SCIENTIFIC Inc. Address before: Haitai Huayuan Industrial Zone Binhai West Road 300384 Tianjin City No. 18 West 6-3F Patentee before: TIANJIN TELLYES SCIENTIFIC Co.,Ltd. |
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| CX01 | Expiry of patent term |
Granted publication date: 20140507 |
|
| CX01 | Expiry of patent term |