CN206671415U - LED indicator type tri-state voltage alarms - Google Patents
LED indicator type tri-state voltage alarms Download PDFInfo
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- CN206671415U CN206671415U CN201720305593.1U CN201720305593U CN206671415U CN 206671415 U CN206671415 U CN 206671415U CN 201720305593 U CN201720305593 U CN 201720305593U CN 206671415 U CN206671415 U CN 206671415U
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Abstract
The utility model discloses a kind of simple voltage alarms based on pattern recognition for being exclusively used in analogue type sensor, particularly with some as the alarm or instruction of the analogue type sensor such as temperature, water level, air-flow, voltage.Including four transistor circuits, three LED circuits, 8 resistance circuits, a 12V power supply circuits composition；The 12V DC power supply is exchanged by 220V, transformer T, bridge heap B, electric capacity C and voltage-regulator diode D are produced；The triode is made up of two PNP triodes and two NPN triode connections；Whether the LED lights, depending on alarm incoming signal level and the resistance circuit of periphery are connected and determined；These circuits interconnect, one detection circuit of triggering or clamp composition, the analog sensor output signal of different voltage sections is warned with three light emitting diodes respectively according to " under-voltage, normal, over-pressed " three kinds of states, perfection solves another Alarm phenomenon in our daily lifes, i.e., " three condition " alarms.
Description
Technical field
A kind of voltage alarms based on pattern recognition technology is the utility model is related to, it is especially a kind of for some picture temperature, water level, air-flow, electricity
For the analogue type sensors such as pressure, its output voltage values is analog signal, if the warning or instruction to it only have " 0 " or " 1 " two
Kind state is inadequate, there is provided a kind of ball bearing made, warned respectively " under-voltage, normal, over-pressed " with three light emitting diodes, it is perfect
Solves another Alarm phenomenon in our daily lifes, i.e., " three condition " alarms.
Background technology
People in order to from the external world obtain information, it is necessary to by means of sense organ, and depend merely on the sense organ of people itself,
It is just far from much of that to study their function in natural phenomena and rule and production activity, to adapt to such case, it is necessary to
Sensor, accordingly, it can be said that sensor is the extension of mankind's face, also referred to as electric face.The arrival of new technology revolution, the world
The information age is initially entered, during using information, first have to solve seeks to acquisition accurately and reliably information, and passes
Sensor is obtained from the main path and means of information in right and production field.In modern industrial production especially automated production
During, monitor and control the parameters in production process with various sensors, make equipment be operated in normal condition or
Optimum state, and product is reached best quality.Accordingly, it can be said that without numerous excellent sensors, modern production
Also basis is just lost.
Sensor can be divided into numeric type sensor and analogue type sensor by the type of output signal, export digital quantity
Sensor is exactly digital sensor, and the sensor for exporting analog quantity is exactly analog sensor.
General common alarm can only provide warning to " normal " and " abnormal " two kinds of phenomenons, because providing signal source
Sensor be often numeric type sensor, its only have " 0 ", " 1 " two kinds of output states, as shown in Figure 1；For some simulations
Sensor output signal, Fig. 1 models can not realize alarm.
The content of the invention
Technical problem to be solved in the utility model is to provide a kind of simple in construction, cheap, service-strong report
Alert device, the alarm design specifically in some analogue type sensors, and the alarm solves our daily lifes well
Another Alarm phenomenon in work, i.e. " three condition " are alarmed, and make that our detections to human habitat are more flexible, more human nature
Change, this tri-state warning is still very necessary in human habitat.
For the industrial and mineral state of some " tri-states ", if using the digital sensor warning circuit designed as Fig. 1 models
It is inappropriate to realize, it is impossible to realization.If use a kind of safety monitor system of perfect in shape and function（Camera, monitoring
Device, alarm etc.）, it is also uneconomical from cost performance.
To achieve the above object, the utility model provides a kind of analogue type sensor alarm circuit, and the alarm is for work
The tri-state warning in ore deposit field is extremely suitable, as shown in Figure 2.
For one circuit of analogue type sensor alarm job design of accompanying drawing 2, the circuit design is simple, it is general to be used as
The tri-state voltage monitoring system of type, the design using LED light emitting diodes instruction input voltage be in " normal range of operation ",
Still " over-pressed working range " or " under-voltage working range ", as long as most of analog sensors and this " LED indicator types tri-state electricity
Press alarm " combination, you can a complete environment warning system is formed, it can alarm or indicate to above-mentioned three kinds of phenomenons,
Rather than two kinds of phenomenons of general alarm device（Or state）Warning, electrical schematic diagram is as shown in Figure 3.
Tri-state voltage alarm is by four triodes, three light emitting diodes, 8 resistance and a 12V power supply circuit
Composition, these devices interconnect, triggering or clamp, by the analog sensor output signal of different voltage sections according to " under-voltage, just
Often, it is over-pressed " warned respectively with three light emitting diodes, perfection solves another Alarm phenomenon in our daily lifes,
I.e. " three condition " alarms, and analog sensor output signal is from resistance R1、R3Between input alarm circuit；12V DC power supply passes through
Biasing resistor R2、R1、R3、R4For triode T1、T2Base stage provides bias voltage, from resistance R2、R1Centre access triode T1Base
Pole, from resistance R3、R4Centre access triode T2Base stage；12V DC power supply is directly connected to triode T simultaneously1、T3Transmitting extremely
It provides emitter stage operating voltage, triode T1A colelctor electrode output voltage part pass through resistance R6For triode T3Base is provided
Pole clamps voltage, and another part output voltage passes through resistance R5, triode T2Light light emitting diode D1, triode T2Current collection
Pole is additionally by resistance R7Connecting triode T4Base stage, clamp voltage, triode T are provided for it2、T4Emitter stage all directly connect
Ground；Triode T1Colelctor electrode pass through resistance R6Connecting triode T3Base stage, for its provide clamp voltage, triode T3Collection
Electrode output signal passes through resistance R8Light light emitting diode D2；12V DC power supply passes through resistance R9, triode T4Light luminous
Diode D3。
The triode is made up of two PNP triodes and two NPN triodes；Whether the light emitting diode is sent out
Light, depending on the quiescent point of alarm incoming signal level and four triodes, quiescent point is by peripheral resistance
Circuit determines.
The 12V power supply circuits are by 220V AC powers, transformer T, bridge heap B, electric capacity C and voltage-regulator diode D groups
Into the 12V as tri-state voltage alarm powers.As shown in Figure 4.
When the input voltage level of this alarm is between 3.5V ~ 8.5V, light emitting diode D1Light instruction input signal
Level is in " normal range of operation ".
When incoming level rises to about more than 8.5V, light emitting diode D2Instruction incoming level is lighted to already exceed " just
Normal working range ", in " overvoltage " state, environment such as water level, temperature, speed etc. of side light install sensor have surpassed
Cross warning line.
When input signal drops to below 3.5V, light emitting diode D3Light, instruction incoming signal level is less than " normal work
Make scope ", in " under-voltage " state, side light sensor environment such as air pressure, water level etc. are less than warning line.
Brief description of the drawings
Accompanying drawing 1, accompanying drawing 2, accompanying drawing 3, accompanying drawing 4 are used for providing further understanding to of the present utility model, form the application's
A part, accompanying drawing 1 are numeric type sensor alarm working models；Accompanying drawing 2 is the work of the utility model analogue type sensor alarm
Model；Accompanying drawing 3 is the utility model tri-state voltage alarm electrical schematic diagram；Accompanying drawing 4 is 12V DC power principle figure.
Embodiment
This tri-state voltage alarm, designs specifically in some analog sensors, solves our days well
The often another Alarm phenomenon in life, i.e. " three condition " alarm, make our detections to human habitat more flexible, more
Hommization, what this tri-state warning was still sought after in human habitat.
Sometimes we still amplify deficiency it should be understood that whether an amplifier has reached saturation；One supply voltage is
It is no over-pressed or it is under-voltage still just；Or some voltage sensors（Sampled even if the sensor of current mode by sampling resistor
Voltage-type output can be formed）Whether the output of such as temperature, water level, air-flow sensor alreadys exceed limiting value（Including the positive limit
Limited with negative pole）, these " three kinds of states to environment（Abbreviation tri-state）" description often to work it is all necessary.
For the industrial and mineral state of these " tri-states ", if using the digital sensor warning circuit designed as Fig. 1 models
It is inappropriate to realize, it is impossible to realization.If use a kind of safety monitor system of perfect in shape and function（Camera, monitoring
Device, alarm etc.）Also it is uneconomical from cost performance.
Then it is extremely suitable using the analogue type sensor alarm model designed herein, as shown in Figure 2.
A circuit is designed for the analogue type sensor alarm working model of accompanying drawing 2, and the circuit design is simple, can conduct
Universal tri-state voltage monitoring system, the design indicate that input voltage is to be in " normal work model using LED light emitting diodes
Enclose ", still " over-pressed working range " or " under-voltage working range ", as long as most of analog sensors and this " LED indicator types three
State voltage alarms based on pattern recognition " combines, you can forms a complete environment warning system, it can alarm or refer to above-mentioned three kinds of phenomenons
Show, rather than two kinds of phenomenons of general alarm device（Or state）Warning, electrical schematic diagram is as shown in Figure 3.
Alarm shown in Fig. 3 is by four triodes, three light emitting diodes, 8 resistance and a 12V DC power supply
Form, these devices trigger mutually or clamp, by the analog sensor output signal of different voltage sections according to " under-voltage, normal, mistake
Pressure " is warned respectively with three light emitting diodes, the perfect another Alarm phenomenon solved in our daily lifes, i.e., and " three
State " is alarmed.
When the output voltage of voltage-type analog sensor, i.e., when the input voltage level of this circuit is between 3.5V ~ 8.5V,
Transistor T1And T2Base stage connection biasing resistor R1、R2、R3、R4Produce firing current, transistor T1And T2C-E poles conducting（T3With
T4Cut-off）, then T1、R5, light emitting diode D1、T2Connection forms loop, light emitting diode D1Light, due to transistor T3And T4Cut
Only make light emitting diode D2、D3Extinguish, D1Instruction incoming signal level is lighted to be in " normal range of operation ".
When incoming level rises to about more than 8.5V, transistor T1Raised due to base potential and be reversed to end by conducting
State, transistor T2Still turn on, T1Cut-off causes T3Base level falls, T3Conducting, T2Conducting makes T4Base stage is still in low electricity
It is flat, T4It is still off, T3Although turning on but base current being too small, it is not enough to light light emitting diode D1, extinguish；Transistor T3, hair
Optical diode D2, resistance R8Connection forms loop, D2Light；T4Cut-off, light emitting diode D3Still extinguish, D2Light instruction input
Level alreadys exceed " normal range of operation ", in " overvoltage " state, the environment such as water level, temperature of side light install sensor
Degree, speed etc. already exceed warning line.
Finally, when input signal drops to below 3.5V, transistor T1And T4Conducting, T2、T3Cut-off, light emitting diode D3Even
Meet transistor T4, 12V power supplys, be lit, D1、D2Extinguish, instruction incoming signal level is less than " normal range of operation ", in " deficient
Pressure " state, side light sensor environment such as air pressure, water level etc. are less than warning line.
Work as input（R1/R3Node）During disconnection, input voltage is equal to the half of supply voltage, i.e. 6V, at this moment light-emitting diodes
Pipe D1Also can light, therefore this circuit will ensure being reliably connected for input wires as far as possible, otherwise can cause to be used as alarm
Alert thing is failed to report.
The total current drain of this circuit depends primarily on the electric current of light emitting diode, is about 20mA during its value maximum.Wherein
In " normal range of operation " light emitting diode D1Indicated using green；" overvoltage " state is in more than " normal range of operation "
Light emitting diode indicated using red；Less than the light emitting diode of " normal range of operation " i.e. in " under-voltage " state using yellow
Color indicates that this color design is identical with our the alarm colors of daily life cognition, and no any discomfort, should will not produce mistake
Read.
The design may be designed in sound and light alarm, existing LED luminous alarms while be furnished with strong audible alarm.But
Due to this alarm be to three kinds of state instructions, and the mankind to the susceptibility of sound relative to being differed greatly for color, i.e.,
It is especially sensitive to color, not very sensitive to sound, it is not easy to so distinguishing three kinds of phenomenons by sound.If using ready-made
Speech IC design, cost height do not say, design difficulty increases, and some are drawn a snake and add feet to it in fact.
" the LED indicator type tri-state voltages alarm " of the utility model introduction, although circuit structure is fairly simple, design
Theory is novel, unique, is totally different from that common " 0 or 1 " alarm, can be solved another in our daily lifes well
Kind Alarm phenomenon, i.e. " three condition " are alarmed, and make our detections to human habitat more flexible, more humane, and this three
State warning is still very necessary in human habitat.Although this design can also be realized by computer, the utility model
Run that more stable, price is less expensive, be very beneficial to marketing.
Claims (5)
1. a LED indicator types tri-state voltage alarm, it is characterised in that：Including four triodes, three light emitting diodes, 8
Individual resistance and a 12V power supply circuits composition, these devices are interconnected, trigger or clamped, by the simulation of different voltage sections
Sensor output signal is warned respectively according to " under-voltage, normal, over-pressed " with three light emitting diodes, i.e., " three condition " alarms；Mould
Intend sensor output signal from resistance R1、R3Between input alarm circuit；12V DC power supply passes through biasing resistor R2、R1、R3、
R4For triode T1、T2Base stage provides bias voltage, from resistance R2、R1Centre access triode T1Base stage, from resistance R3、R4It is middle
Access triode T2Base stage；12V DC power supply is directly connected to triode T simultaneously1、T3Transmitting extremely its provide emitter stage work
Voltage, triode T1A colelctor electrode output voltage part pass through resistance R6For triode T3Base clamper voltage, another portion are provided
Output voltage is divided to pass through resistance R5, triode T2Light light emitting diode D1, triode T2Colelctor electrode additionally by resistance R7Even
Meet triode T4Base stage, clamp voltage, triode T are provided for it2、T4Emitter stage be all directly grounded；Triode T3Colelctor electrode
Output signal passes through resistance R8Light light emitting diode D2；12V DC power supply passes through resistance R9, triode T4Light light-emitting diodes
Pipe D3。
2. LED indicator types tri-state voltage alarm according to claim 1, it is characterised in that：The triode is by two
PNP triode T1, T3 and two NPN triode T2, T4 compositions.
3. LED indicator types tri-state voltage alarm according to claim 1, it is characterised in that：The input of the alarm
When voltage level is between 3.5V ~ 8.5V, transistor T1And T2Base stage connection biasing resistor R1、R2、R3、R4Produce firing current,
Transistor T1And T2The conducting of C-E poles, at this moment T3And T4End, then T1、R5, light emitting diode D1、T2Connection forms loop, lights
Diode D1Light, due to transistor T3And T4Cut-off makes light emitting diode D2、D3Extinguish, D1Light at instruction incoming signal level
In " normal range of operation ".
4. LED indicator types tri-state voltage alarm according to claim 1, it is characterised in that：The input of the alarm
When level rises to more than 8.5V, transistor T1Raised due to base potential and cut-off state, transistor T are reversed to by conducting2Still
Conducting, T1Cut-off causes T3Base level falls, T3Conducting, T2Conducting makes T4Base stage is still in low level, T4It is still off, T3Though
So turn on but base current is too small, be not enough to light light emitting diode D1, extinguish；Transistor T3, light emitting diode D2, resistance R8
Connection forms loop, D2Light；T4Cut-off, light emitting diode D3Still extinguish, D2Instruction incoming level is lighted to already exceed " just
Normal working range ", in " overvoltage " state.
5. LED indicator types tri-state voltage alarm according to claim 1, it is characterised in that：The input of the alarm
When signal drops to below 3.5V, transistor T1And T4Conducting, T2、T3Cut-off, light emitting diode D3Connect transistor T4And 12V
Power supply, D3It is lit, D1、D2Extinguish, instruction incoming signal level is less than " normal range of operation ", in " under-voltage " state.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720305593.1U CN206671415U (en) | 2017-03-27 | 2017-03-27 | LED indicator type tri-state voltage alarms |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720305593.1U CN206671415U (en) | 2017-03-27 | 2017-03-27 | LED indicator type tri-state voltage alarms |
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| Publication Number | Publication Date |
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| CN206671415U true CN206671415U (en) | 2017-11-24 |
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|---|---|---|---|
| CN201720305593.1U Expired - Fee Related CN206671415U (en) | 2017-03-27 | 2017-03-27 | LED indicator type tri-state voltage alarms |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109596879A (en) * | 2018-11-08 | 2019-04-09 | 山西工程技术学院 | The design and implementation methods of industrial and mineral electrical equipment externally positioned type overcurrent alarm |
| CN109653799A (en) * | 2018-12-26 | 2019-04-19 | 山西工程技术学院 | A kind of gas alarm being different from traditional structure and implementation method |
-
2017
- 2017-03-27 CN CN201720305593.1U patent/CN206671415U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109596879A (en) * | 2018-11-08 | 2019-04-09 | 山西工程技术学院 | The design and implementation methods of industrial and mineral electrical equipment externally positioned type overcurrent alarm |
| CN109596879B (en) * | 2018-11-08 | 2024-05-14 | 山西工程技术学院 | External overcurrent alarm for industrial and mining electrical equipment |
| CN109653799A (en) * | 2018-12-26 | 2019-04-19 | 山西工程技术学院 | A kind of gas alarm being different from traditional structure and implementation method |
| CN109653799B (en) * | 2018-12-26 | 2023-12-22 | 山西工程技术学院 | Gas alarm different from traditional structure and implementation method |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20171124 Termination date: 20190327 |