CN104408875A - Alarm circuit and manufacturing method thereof - Google Patents
Alarm circuit and manufacturing method thereof Download PDFInfo
- Publication number
- CN104408875A CN104408875A CN201410725081.1A CN201410725081A CN104408875A CN 104408875 A CN104408875 A CN 104408875A CN 201410725081 A CN201410725081 A CN 201410725081A CN 104408875 A CN104408875 A CN 104408875A
- Authority
- CN
- China
- Prior art keywords
- diode
- resistance
- triode
- warning circuit
- switch
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 238000004519 manufacturing process Methods 0.000 title claims description 7
- 230000000087 stabilizing effect Effects 0.000 claims abstract description 7
- 238000000034 method Methods 0.000 claims description 6
- 238000004080 punching Methods 0.000 claims description 6
- 238000003466 welding Methods 0.000 claims description 6
- 238000007747 plating Methods 0.000 claims description 3
- 230000002265 prevention Effects 0.000 claims description 3
- 238000007639 printing Methods 0.000 claims description 3
- 239000003990 capacitor Substances 0.000 abstract 3
- 238000005516 engineering process Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000007257 malfunction Effects 0.000 description 1
- 230000001960 triggered effect Effects 0.000 description 1
Classifications
-
- G—PHYSICS
- G08—SIGNALLING
- G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
- G08B21/00—Alarms responsive to a single specified undesired or abnormal condition and not otherwise provided for
- G08B21/02—Alarms for ensuring the safety of persons
- G08B21/0297—Robbery alarms, e.g. hold-up alarms, bag snatching alarms
-
- G—PHYSICS
- G08—SIGNALLING
- G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
- G08B25/00—Alarm systems in which the location of the alarm condition is signalled to a central station, e.g. fire or police telegraphic systems
- G08B25/01—Alarm systems in which the location of the alarm condition is signalled to a central station, e.g. fire or police telegraphic systems characterised by the transmission medium
- G08B25/10—Alarm systems in which the location of the alarm condition is signalled to a central station, e.g. fire or police telegraphic systems characterised by the transmission medium using wireless transmission systems
-
- G—PHYSICS
- G08—SIGNALLING
- G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
- G08B29/00—Checking or monitoring of signalling or alarm systems; Prevention or correction of operating errors, e.g. preventing unauthorised operation
- G08B29/02—Monitoring continuously signalling or alarm systems
- G08B29/04—Monitoring of the detection circuits
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Business, Economics & Management (AREA)
- Emergency Management (AREA)
- Engineering & Computer Science (AREA)
- Computer Security & Cryptography (AREA)
- Computer Networks & Wireless Communication (AREA)
- Alarm Systems (AREA)
Abstract
The invention discloses an alarm circuit which comprises a resistor R1, resistor R2, resistor R3, a capacitor C1, a diode D1, a diode D2, a triode Q1, a switch S and an alarm device. The alarm circuit is characterized in that the input port of the alarm device is electrically connected with the collector of the triode Q1; the collector of the triode Q1 is further connected with the positive electrode of the diode D2; the negative electrode of the diode D2 is connected with the ground; the diode D2 is a light emitting diode; the base of the triode Q1 is connected with each of one end of the resistor R3 and the negative electrode of the diode D1; the emitter of the triode Q1 and the other end of the resistor R3 are both connected with the ground; the diode D1 is a voltage stabilizing diode; the positive electrode of the diode D1 is connected with each of one end of the resistor R2, one end of the switch S and one end of the capacitor C1; the other end of the resistor R2 is connected with a 5V power supply; the other end of the switch S is connected with the ground through the resistor R1; the other end of the capacitor C1 is connected with the ground.
Description
Technical field
The present invention relates to safety-security area, specifically a kind of warning circuit and manufacture method thereof.
Background technology
Emergency alarm device is the equipment being used in timely trigger alarm when there is emergency condition, is usually arranged on the places such as bank, office building, market, elevator.At present, along with the increase of automobile, the events such as vehicle failure, accident and carjacking constantly occur, and increasing car owner starts on automobile, install emergency alarm circuit.But at present, on automobile, urgent warning circuit is generally pushbutton switch and adds that hummer is formed, although can alarm sound be produced, draw back robber with fear, but when automobile break down or accident time, alerting signal cannot be sent to relevant rescue center in time, once occur dangerous situation be difficult to be succoured timely, and alarm button is simple, easily produces maloperation.
Summary of the invention
The object of the present invention is to provide a kind of warning circuit and manufacture method thereof, to solve the problem proposed in above-mentioned background technology.
For achieving the above object, the invention provides following technical scheme:
A kind of warning circuit, comprise resistance R1, resistance R2, resistance R3, electric capacity C1, diode D1, diode D2, triode Q1, switch 2 and warning device, described warning device input port is connected electrically on the collector of triode Q1, the collector of triode Q1 also connects the positive pole of diode D2, the minus earth of diode D2, diode D2 is light emitting diode, base stage one end of contact resistance R3 and the negative pole of diode D1 respectively of described triode Q1, the wherein emitter of triode Q1 and the equal ground connection of the other end of resistance R3, described diode D1 is voltage stabilizing diode, the positive pole of described diode D1 is one end of contact resistance R2, one end of switch S and one end of electric capacity C1 respectively, and the other end of resistance R2 connects 5V power supply, the other end of switch S by resistance R1 ground connection, the other end ground connection of electric capacity C1.
As the further scheme of the present invention: described warning device comprises wireless transmitter module and hummer.
As the further scheme of the present invention: described triode Q1 is NPN type triode.
As the further scheme of the present invention: the prevention of described resistance R2 is 4.7K.
As the further scheme of the present invention: described voltage stabilizing diode D1 is 2.4V.
As the further scheme of the present invention: described resistance R3 is 47K.
The invention also discloses the manufacture method of above-mentioned warning circuit, comprise the steps:
1) pcb board system is done: punching press, punching, printing, plating;
2) electronic component grafting: adopt manual and/or Machine automated grafting;
3) electronic component welding: adopt craft and/or mechanical automation welding.
Technological merit
Compared with prior art, the invention has the beneficial effects as follows: the present invention can not only be applied to the emergency alarm of GPS terminal, also can be used alone as emergency alarm device, or be transplanted on other various electromechanical equipments, alerting signal can be sent by wireless launcher, also the hummer of triggered alarm can send alerting signal.After button is pressed, electric capacity C1 could respond, effectively can prevent maloperation after needing fully electric discharge, and arrange light emitting diode can the state of moment supervisory circuit simultaneously, avoids the equipment malfunction that the problems such as short circuit cause.
Accompanying drawing explanation
Fig. 1 is warning circuit schematic diagram of the present invention.
Embodiment
Below in conjunction with accompanying drawing, be clearly and completely described technical scheme of the present invention, obviously, described embodiment is only the present invention's part embodiment, instead of whole embodiments.Based on the embodiment in the present invention, those of ordinary skill in the art, not making the every other embodiment obtained under creative work prerequisite, belong to the scope of protection of the invention.
Embodiment 1: refer to Fig. 1, a kind of warning circuit of the present invention, comprise resistance R1, resistance R2, resistance R3, electric capacity C1, diode D1, diode D2, triode Q1, switch 2 and warning device, described warning device input port is connected electrically on the collector of triode Q1, the collector of triode Q1 also connects the positive pole of diode D2, the minus earth of diode D2, diode D2 is light emitting diode, base stage one end of contact resistance R3 and the negative pole of diode D1 respectively of described triode Q1, the wherein emitter of triode Q1 and the equal ground connection of the other end of resistance R3, described diode D1 is voltage stabilizing diode,
The positive pole of described diode D1 is one end of contact resistance R2, one end of switch S and one end of electric capacity C1 respectively, and the other end of resistance R2 connects 5V power supply, the other end of switch S by resistance R1 ground connection, the other end ground connection of electric capacity C1.
Described warning device comprises wireless transmitter module (not shown) and hummer (not shown), and described triode Q1 is NPN type triode.The prevention of described resistance R2 is 4.7K, and voltage stabilizing diode D1 is 2.4V, and resistance R3 is 47K.
The manufacture method of above-mentioned warning circuit, comprises the steps:
1) pcb board system is done: punching press, punching, printing, plating;
2) electronic component grafting: adopt manual and/or Machine automated grafting;
3) electronic component welding: adopt craft and/or mechanical automation welding.
Principle of work of the present invention is: switch S is as a danger button, when danger button is not pressed, 5V power supply is through 4.7K resistance R2, after 2.4V stabilivolt D1 and 47K resistance R3 dividing potential drop, triode Q1 base voltage is (5-2.4) * 47/ (4.7+47) 0.7V, can make triode Q1 conducting, so the current collection of triode Q1 very low level, now diode D2 is luminance.After danger button is pressed, discharged by button at C1 electric charge, after having discharged, triode Q1 base voltage has been 0, the current collection very high level of triode Q1.
To those skilled in the art, obviously the invention is not restricted to the details of above-mentioned one exemplary embodiment, and when not deviating from spirit of the present invention or essential characteristic, the present invention can be realized in other specific forms.Therefore, no matter from which point, all should embodiment be regarded as exemplary, and be nonrestrictive, scope of the present invention is limited by claims instead of above-mentioned explanation, and all changes be therefore intended in the implication of the equivalency by dropping on claim and scope are included in the present invention.Any Reference numeral in claim should be considered as the claim involved by limiting.
In addition, be to be understood that, although this instructions is described according to embodiment, but not each embodiment only comprises an independently technical scheme, this narrating mode of instructions is only for clarity sake, those skilled in the art should by instructions integrally, and the technical scheme in each embodiment also through appropriately combined, can form other embodiments that it will be appreciated by those skilled in the art that.
Claims (7)
1. a warning circuit, comprise resistance R1, resistance R2, resistance R3, electric capacity C1, diode D1, diode D2, triode Q1, switch 2 and warning device, it is characterized in that, described warning device input port is connected electrically on the collector of triode Q1, the collector of triode Q1 also connects the positive pole of diode D2, the minus earth of diode D2, diode D2 is light emitting diode, base stage one end of contact resistance R3 and the negative pole of diode D1 respectively of described triode Q1, the wherein emitter of triode Q1 and the equal ground connection of the other end of resistance R3, described diode D1 is voltage stabilizing diode, the positive pole of described diode D1 is one end of contact resistance R2, one end of switch S and one end of electric capacity C1 respectively, and the other end of resistance R2 connects 5V power supply, the other end of switch S by resistance R1 ground connection, the other end ground connection of electric capacity C1.
2. a kind of warning circuit according to claim 1, is characterized in that, described warning device comprises wireless transmitter module and hummer.
3. a kind of warning circuit according to claim 1, is characterized in that, described triode Q1 is NPN type triode.
4. a kind of warning circuit according to claim 1, is characterized in that, the prevention of described resistance R2 is 4.7K.
5. a kind of warning circuit according to claim 1, is characterized in that, described voltage stabilizing diode D1 is 2.4V.
6. a kind of warning circuit according to claim 1, is characterized in that, described resistance R3 is 47K.
7. the manufacture method of above-mentioned warning circuit, comprises the steps:
1) pcb board system is done: punching press, punching, printing, plating;
2) electronic component grafting: adopt manual and/or Machine automated grafting;
3) electronic component welding: adopt craft and/or mechanical automation welding.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410725081.1A CN104408875A (en) | 2014-12-03 | 2014-12-03 | Alarm circuit and manufacturing method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410725081.1A CN104408875A (en) | 2014-12-03 | 2014-12-03 | Alarm circuit and manufacturing method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104408875A true CN104408875A (en) | 2015-03-11 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410725081.1A Pending CN104408875A (en) | 2014-12-03 | 2014-12-03 | Alarm circuit and manufacturing method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104408875A (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN200993816Y (en) * | 2007-01-01 | 2007-12-19 | 邵志祥 | Automatic prompting device |
| CN201527699U (en) * | 2009-08-04 | 2010-07-14 | 天津三星电子有限公司 | Light control alarm device |
| CN203084842U (en) * | 2012-12-24 | 2013-07-24 | 泉州豪杰信息科技发展有限公司 | Emergency alarm circuit |
| CN204270468U (en) * | 2014-12-03 | 2015-04-15 | 宿迁峰驰安防有限公司 | A kind of warning circuit |
-
2014
- 2014-12-03 CN CN201410725081.1A patent/CN104408875A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN200993816Y (en) * | 2007-01-01 | 2007-12-19 | 邵志祥 | Automatic prompting device |
| CN201527699U (en) * | 2009-08-04 | 2010-07-14 | 天津三星电子有限公司 | Light control alarm device |
| CN203084842U (en) * | 2012-12-24 | 2013-07-24 | 泉州豪杰信息科技发展有限公司 | Emergency alarm circuit |
| CN204270468U (en) * | 2014-12-03 | 2015-04-15 | 宿迁峰驰安防有限公司 | A kind of warning circuit |
Non-Patent Citations (1)
| Title |
|---|
| 陈晓: "《电子工艺基础》", 31 December 2013, 气象出版社 * |
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| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20150311 |