CN206363473U - A kind of induction burglar alarm - Google Patents
A kind of induction burglar alarm Download PDFInfo
- Publication number
- CN206363473U CN206363473U CN201621357583.4U CN201621357583U CN206363473U CN 206363473 U CN206363473 U CN 206363473U CN 201621357583 U CN201621357583 U CN 201621357583U CN 206363473 U CN206363473 U CN 206363473U
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- CN
- China
- Prior art keywords
- relay
- switch
- photoelectrical coupler
- alarm
- burglar alarm
- 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.)
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Abstract
The utility model discloses a kind of induction burglar alarm, it includes a plurality of inductively coupled circuit, controlling switch, current-limiting resistance, relay and alarm bell, described inductively coupled circuit includes inductance approach switch and photoelectrical coupler, described photoelectrical coupler includes light emitting diode and phototriode, described relay includes two pairs of contacts, described inductance approach switch is connected with photoelectrical coupler, a pair of contact of relay is connected with the alarm bell, the self-locking of relay in itself is realized by another pair contact of relay, described current-limiting resistance is connected to the input of the photoelectrical coupler, described controlling switch is connected on the line of power cathode main line.The utility model has the characteristics of sensitivity is high, rate of false alarm is low, can realize the monitoring, alarming simultaneously to multiple positions, and production cost is low.
Description
Technical field
The utility model is related to burglar alarm field, specifically a kind of induction burglar alarm.
Background technology
Burglar alarm product category in the market is varied, and function is each different, and brand is also numerous and diverse, but in skill
It is all similar in art, the detection to intrusion is mainly used in, is exactly by installing various types of detection sensors in brief
（Such as infrared ray, electromagnetic wave, door and window magnetic reed switch, emergency alarm button, glass break sensorses）, carry out sensing alarm.It is existing
Using at most on the market, also most common is infrared anti-theft alarm.Infrared anti-theft alarm presses its working method
Two kinds of active detection and passive detection can be divided into again, active infrared detecting alarm has photophore, it can be actively
Light beam is sent to be detected, if its light-beam interruption will be reported by mistake, therefore be present larger rate of false alarm in it, sent due to it
Light beam is straight, so general be all used to protect some region of periphery external world, and passive infrared detecting alarm
Then the infrared ray by detecting human-body emitting, to carry out sensing alarm, but due in general, outdoor temperature change compared with
Greatly, and thermal source interference and disturb also compare it is many, its rate of false alarm is also higher, so passive infrared detecting alarm is most
It can be only applied to the detection to indoor or specific region space.Sensitivity and rate of false alarm, are always that burglar alarm product is faced
Principal contradiction, because if the sensitivity of product is improved, its rate of false alarm also tends to rise therewith.So, it should improve sensitive
Degree, reduces rate of false alarm, is a particularly important developing direction for burglar alarm performance boost again.
As shown in figure 3, inductance approach switch belongs to a kind of position sensor for having an output switch parameter, it is by LC high frequency vibratings
Device and amplification treatment circuit composition are swung, using metal object when the vibration inductive head of electromagnetic field can be produced close to this, makes thing
Internal portion produces vortex.This vortex reacts on proximity switch, proximity switch lasing capability is decayed, the parameter of internal circuit
Change, thus identify that whetheing there is metal object approaches, and then control the on-off of alarm switch.Inductance approach switch has
There are the intrinsic advantages such as detection accuracy high, stable and reliable for performance, frequency response fast, service life length, strong antijamming capability, and have
Waterproof, it is shockproof, corrosion-resistant the features such as, it can improve the sensitivity of burglar alarm, while can reduce rate of false alarm, Neng Goucheng again
Solve the sensitivity of burglar alarm and the contradiction of rate of false alarm work(.
Utility model content
The purpose of this utility model is to overcome the deficiencies in the prior art there is provided a kind of induction burglar alarm,
While at least up to improve sensitivity, reduction rate of false alarm and cost.
The purpose of this utility model is achieved through the following technical solutions：A kind of induction burglar alarm,
It includes a plurality of inductively coupled circuit, controlling switch, current-limiting resistance, relay and alarm bell, and described inductively coupled circuit includes
Inductance approach switch and photoelectrical coupler, described photoelectrical coupler include light emitting diode and phototriode, described
Relay includes two pairs of contacts；The output end of described inductance approach switch and the electric signal input end of light emitting diode connect
Connect, light emitting diode lights after receiving the electric signal of the inductance approach switch input, and phototriode is by described luminous
Electric current is produced after diode illumination, the CE poles of the phototriode are turned on, CE poles are connected with the input of the relay, after
A pair of contact of electrical equipment is connected with the alarm bell, and realization is turned on and off to alarm bell, passes through another pair contact of relay
The self-locking of relay in itself is realized, described current-limiting resistance is connected to the input of the photoelectrical coupler, and described control is opened
Connection is connected on the line of power cathode main line, can cut off whole circuit.
Described inductance approach switch is the inductance approach switch of DC two-wire system.
Described photoelectrical coupler is integrated electro coupler, and connecting described inductance type using different pin interfaces connects
Nearly switch.
Described integrated electro coupler is TLP521-4.
Further, it also includes fuse, and fuse is arranged on the line of power cathode main line.
The beneficial effects of the utility model are：The utility model is used as inductive probe, base using inductance approach switch
In electromagnetic induction action, it is not necessary to which Mechanical Contact and any external force of application, positioning precision are high, and rate of false alarm is low, strong antijamming capability；
The output signal for carrying out inductance approach switch using photoelectrical coupler is handled, and the signal of photoelectrical coupler is one-way transmission
, therefore have the advantages that strong antijamming capability, working stability, service life length, efficiency of transmission are high；The utility model is especially
Using integrated electro coupler, described integrated electro coupler is integrated with multiple photoelectrical couplers, can be with multiple inductance types
Proximity switch is connected, and is monitored while realizing multiple spot position using the integration capability of integrated chip, is not only reduced rate of false alarm, carries
The high sensitivity of monitoring, and reduce cost.The utility model has simple composition, reliability height, good concealment, wrong report
Rate is extremely low, service life length, the advantage of strong antijamming capability.
Brief description of the drawings
Fig. 1 is circuit structure diagram of one of the utility model embodiment using integrated electro coupler；
Fig. 2 is the two of the embodiment of the present utility model circuit structure diagram for using photoelectrical coupler；
Fig. 3 is circuit block diagram of the present utility model；
Fig. 4 is the schematic diagram of inductance approach switch of the present utility model；
Fig. 5 is integrated electro coupler pin interface figure of the present utility model；
Fig. 6 is DC two-wire system inductance approach switch pin interface schematic diagram of the present utility model.
Embodiment
The technical solution of the utility model, but protection domain of the present utility model are described in further detail below in conjunction with the accompanying drawings
It is not limited to as described below.
A kind of induction burglar alarm, it include a plurality of inductively coupled circuit, controlling switch, current-limiting resistance, after
Electrical equipment and alarm bell, described inductively coupled circuit include inductance approach switch and photoelectrical coupler, described photoelectrical coupler
Including light emitting diode and phototriode, described relay includes two pairs of contacts；Described inductance approach switch it is defeated
Go out end to be connected with the electric signal input end of light emitting diode, light emitting diode receives the telecommunications of the inductance approach switch input
Lighted after number, phototriode is turned on the CE poles of the phototriode by electric current is produced after the LED light irradiation,
CE poles are connected with the input of the relay, and a pair of contact of relay is connected with the alarm bell, and realization is opened alarm bell
Open or close, the self-locking of relay in itself is realized by another pair contact of relay, described current-limiting resistance is connected to described
The input of photoelectrical coupler, described controlling switch is connected on the line of power cathode main line, can cut off whole circuit.
Described inductance approach switch is the inductance approach switch of DC two-wire system.
Described photoelectrical coupler is integrated electro coupler, and connecting described inductance type using different pin interfaces connects
Nearly switch.
Described integrated electro coupler is TLP521-4.
Further, it also includes fuse, and fuse is arranged on the line of power cathode main line.
Such as Fig. 1, shown in 3, a kind of induction burglar alarm is mainly connect by power supply BT, controlling switch SA1, inductance type
BT is power supply in the compositions such as nearly switch TA1~TA4, relay K1, alarm bell LS1, photoelectrical coupler U1~U4, fuse FU1, figure
Battery；SA1 is controlling switch, can control the work and stopping of alarm；FU1 is fuse, it is to avoid each functional circuit is not big
Circuit damage.TA1, TA2, TA3, TA4 are four inductance approach switches in figure, four positions can be monitored simultaneously, as long as having one
Individual point has forcible entry, and alarm will alarm.This is the advantage of the application, and an alarm can monitor multiple positions simultaneously
Put, proximity switch is arranged on different positions, as shown in fig. 6, only two lead-out wires of proximity switch need to be received the report for police service into device i.e.
Can, install simple, easy-to-connect is not required to increase other equipment, reduces cost.The output of proximity switch directly controls photoelectricity
The light emitting diode of coupler, light emitting diode controls the phototriode of photoelectrical coupler, the output letter of phototriode again
Number carry out control relay K again, alarm bell LS1, another pair contact of relay are finally controlled by a pair of control contact of relay
For the self-locking of relay, i.e., when alarm bell be switched on after alarm will ring always, until artificially switch SA1 is disconnected, alarm
It could reset, this can largely be avoided failing to report.
The utility model is handled using photoelectrical coupler come the output signal to inductance approach switch.Photoelectric coupling
Device is luminescent device（Such as light-emittingdiode）And light-sensitive device（Such as phototriode）Fit together, coupling is realized by light
Close the switching device for constituting electricity-light and light-electricity.Photoelectrical coupler is typically made up of three parts：The transmitting of light, the reception of light and
Signal amplifies.The electric signal driving light emitting diode of input（LED）, light-emittingdiode lighted by electric current, phototriode
Element after illumination by electric current is produced, and its CE pole is turned on, then is exported after further amplification；When input no signal, light
Diode is not lighted, phototriode cut-off, and CE poles are not turned on.As shown in Fig. 2 being one of embodiment of the present utility model, adopt
With a photoelectrical coupler and an inductance approach switch circuit structure diagram, the monitoring to some ad-hoc location is realized.
Such as Fig. 2, shown in 5, as the two of embodiment of the present utility model, monitored while realization to multiple positions.It will
Four photoelectrical couplers are integrated in a chip, and each irrelevant, and the switching signal of four proximity switches can be received simultaneously.Its
In, 1,3,5,7 pin of integrated electro coupler are anode anodes, and 2,4,6,8 pin are cathode negative electrodes, and 9,11,13,15 pin are
Emitter emitter stages, 10,12,14,16 pin are collector colelctor electrodes.
The input of photoelectrical coupler, which accesses current-limiting resistance a R1, R1, is used for the input current for limiting photoelectrical coupler,
When input current is more than 5mA, the conducting resistance of photoelectric coupler output end is substantially with regard to that can reach saturation, so general all lead to
The resistance for crossing adjustment current-limiting resistance controls the input current of photoelectrical coupler in 5mA or so, photoelectrical coupler can be enable to have
Effect ground output control signal, is avoided that it because electric current is excessive and damages again.
The utility model is mainly used in the forcible entry detection of the door of various occasions, window etc., and proximity switch insertion is arranged on
In door, window, very hidden, when there is forcible entry, door, window are opened, and proximity switch will sense the change of door, window, fast
Speed sends electrical command and gives control circuit, control circuit to control alarm bell to alarm immediately after receiving instruction.
Described above is only preferred embodiment of the present utility model, it should be understood that the utility model is not limited to herein
Disclosed form, is not to be taken as the exclusion to other embodiment, and available for various other combinations, modification and environment, and
It can be modified in contemplated scope described herein by the technology or knowledge of above-mentioned teaching or association area.And this area
The change and change that personnel are carried out do not depart from spirit and scope of the present utility model, then all should be in right appended by the utility model
It is required that protection domain in.
Claims (5)
1. a kind of induction burglar alarm, it is characterised in that：It includes a plurality of inductively coupled circuit, controlling switch, limit
Leakage resistance, relay and alarm bell, described inductively coupled circuit include inductance approach switch and photoelectrical coupler, described light
Electric coupler includes light emitting diode and phototriode, and described relay includes two pairs of contacts；Described inductance type is approached
The output end of switch and the electric signal input end of light emitting diode are connected, and it is defeated that light emitting diode receives the inductance approach switch
Lighted after the electric signal entered, phototriode is turned on photosensitive three pole by electric current is produced after the LED light irradiation
The CE poles of pipe, CE poles are connected with the input of the relay, and a pair of contact of relay is connected with the alarm bell, realization pair
Being turned on and off for alarm bell, the self-locking of relay in itself is realized by another pair contact of relay, and described current-limiting resistance connects
The input of the photoelectrical coupler is connected on, described controlling switch is connected on the line of power cathode main line, can cut off whole
Circuit.
2. a kind of induction burglar alarm according to claim 1, it is characterised in that：Described inductance type is approached
Switch the inductance approach switch for DC two-wire system.
3. a kind of induction burglar alarm according to claim 1, it is characterised in that：Described photoelectrical coupler
For integrated electro coupler, described inductance approach switch is connected using different pin interfaces.
4. a kind of induction burglar alarm according to claim 3, it is characterised in that：Described Integrated Light thermocouple
Clutch is TLP521-4.
5. a kind of induction burglar alarm according to claim 1, it is characterised in that：It also includes fuse,
Fuse is arranged on the line of power cathode main line.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621357583.4U CN206363473U (en) | 2016-12-12 | 2016-12-12 | A kind of induction burglar alarm |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621357583.4U CN206363473U (en) | 2016-12-12 | 2016-12-12 | A kind of induction burglar alarm |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206363473U true CN206363473U (en) | 2017-07-28 |
Family
ID=59374593
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621357583.4U Expired - Fee Related CN206363473U (en) | 2016-12-12 | 2016-12-12 | A kind of induction burglar alarm |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206363473U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111371171A (en) * | 2020-03-09 | 2020-07-03 | 苏州天一信德环保科技有限公司 | Environment monitoring meter-dividing and electricity-metering GPRS terminal with power-down and door switch detection functions |
-
2016
- 2016-12-12 CN CN201621357583.4U patent/CN206363473U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111371171A (en) * | 2020-03-09 | 2020-07-03 | 苏州天一信德环保科技有限公司 | Environment monitoring meter-dividing and electricity-metering GPRS terminal with power-down and door switch detection functions |
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20170728 Termination date: 20181212 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |