CN103886701A - Indoor alarm - Google Patents
Indoor alarm Download PDFInfo
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- CN103886701A CN103886701A CN201410154488.3A CN201410154488A CN103886701A CN 103886701 A CN103886701 A CN 103886701A CN 201410154488 A CN201410154488 A CN 201410154488A CN 103886701 A CN103886701 A CN 103886701A
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- indoor alarm
- signal processing
- alarm equipment
- processing unit
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Abstract
The invention relates to an indoor alarm arranged in an indoor sill. The indoor alarm comprises a shell, a photoelectric sensor unit, a signal processing unit, a buzzer and a direct current source, wherein the shell is provided with a plurality of through holes, the photoelectric sensor unit, the signal processing unit and the buzzer are respectively arranged in the shell, the photoelectric sensor unit and the buzzer are respectively connected with the signal processing unit through communication, and the photoelectric sensor unit, the signal processing unit and the buzzer are supplied with the electricity through the direct current source. The indoor alarm has the advantages that the area above the sill can be monitored at night through light control and the processing circuit with the simple structure, the indoor alarm can remind residents and warn burglars, the indoor alarm can collect, process and convert local data into sound information through simple devices, the reliability and the hidden performance are high, the indoor alarm is not prone to being found by the burglars, and the burglars cannot bypass the alarm into the house.
Description
Technical field
The present invention relates to Household alarm device, relate in particular to a kind of indoor alarm equipment.
Background technology
Existing household alarm is based on physical method or electronic technology, and the alarm reliability based on physical method is lower, and is easy to be found by robber person, so that walks around alarm and enter the room; And alarm based on electronic technology needs employing wireless Remote Sensing Digital Technique, wire telephony technology, gsm wireless phone technology and internet broadband technology, larger for the processor of alarm local data and the dependence of communication server, limitation is larger, and production cost is also relatively high.
Summary of the invention
The object of the invention is to overcome the deficiency of above prior art, and a kind of simple, cost is lower, reliability is higher indoor alarm equipment is provided, and specifically has following technical scheme to realize:
Described indoor alarm equipment, be located on indoor windowsill, comprise the housing, photoelectric sensing unit, signal processing unit, hummer and the direct supply that are provided with some through holes, described photoelectric sensing unit, signal processing unit and hummer are located at respectively in housing, described photoelectric sensing unit, hummer communicate to connect with signal processing unit respectively, and described photoelectric sensing unit, signal processing unit and hummer are by described DC power supply.
The further design of described indoor alarm equipment is, described housing be a sealing, inside is provided with the cube of cavity structure.
The further design of described indoor alarm equipment is, described photoelectric sensing unit comprises laser instrument, two photodiodes and fixed value resistance, described laser instrument opens and closes by a switch control, the negative pole of described photodiode connects respectively described direct supply, anodal respectively accordingly by described fixed value resistance ground connection.
The further design of described indoor alarm equipment is, described signal processing unit comprises a signal amplification circuit and single-chip microcomputer, the input end of described signal amplification circuit is connected with photodiode respectively, and the output terminal of signal amplification circuit connects respectively the external interrupt interface of single-chip microcomputer.
The further design of described indoor alarm equipment is, described signal amplification circuit is LM358 type operational amplifier, described single-chip microcomputer is 89C51 type single-chip microcomputer, two input ends that are connected respectively LM358 of described two photodiodes, two output terminals of LM358 are connected respectively external interrupt interface INT0, the INT1 of 89C51 single-chip microcomputer.
The further design of described indoor alarm equipment is, described photoelectric sensing unit is circuit structure and the laser instrument that two photodiodes are in parallel, described laser instrument opens and closes by a switch control, the negative pole of described photodiode connects respectively described signal processing unit, and the positive pole of photodiode is connected with DC power cathode.
The further design of described indoor alarm equipment is, described signal processing unit is a relay, the two ends of the coil of relay connect respectively input end and the output terminal formation control loop of photoelectric sensing unit, and the two ends that the moving contact of relay connects respectively described hummer form controlled loop.
The further design of described indoor alarm equipment is, described housing is fixed on windowsill by gluing sheet, and the length direction of described housing is parallel with windowsill.
The further design of described indoor alarm equipment is, the through hole on described housing is three, and described through hole is distributed in the top of described housing equally spacedly successively along shell length direction.
The further design of described indoor alarm equipment is, under the through hole mediating, is provided with described laser instrument in described three through holes, and under remaining two through hole, correspondence is provided with a photodiode respectively.
Advantage of the present invention is as follows:
Indoor alarm equipment provided by the invention, realize the monitoring to windowsill upper area at night by treatment circuit light-operated and simple in structure, play the effect of reminding resident family and warning thief, this indoor alarm equipment by easy device can complete local data collection, process, change into the function of acoustic intelligence, and reliability is higher, disguise is difficult for by force person thefted and finds so that walk around this alarm to enter indoor.
Accompanying drawing explanation
Fig. 1 is the structural representation of indoor alarm equipment provided by the invention.
Fig. 2 is the AA cut-open view of Fig. 1 indoor alarm equipment structural representation.
Fig. 3 is the position view of described indoor alarm equipment.
Fig. 4 is the circuit diagram of indoor alarm equipment.
Fig. 5 is the circuit diagram (the second embodiment) of indoor alarm equipment.
Embodiment
Below in conjunction with accompanying drawing, the present invention program is elaborated.
The indoor alarm equipment that the present embodiment provides, is located on indoor windowsill.As shown in Figure 1 and Figure 2, this indoor alarm equipment is mainly made up of the housing, photoelectric sensing unit, signal processing unit, hummer and the direct supply that are provided with three through holes.Photoelectric sensing unit, signal processing unit and hummer are located at respectively in housing.Photoelectric sensing, hummer communicate to connect with signal processing unit respectively, and photoelectric sensing unit, signal processing unit and hummer are by above-mentioned DC power supply.The housing that the present embodiment provides be a sealing, inside is provided with the cube of cavity structure.The magnitude of voltage of the direct supply of the present embodiment is+5V.
Above-mentioned housing is fixed on windowsill by gluing sheet, and the length direction of housing is parallel with windowsill, referring to Fig. 3.
Through hole on housing is distributed in the top of housing equally spacedly successively along shell length direction, referring to Fig. 1.Three holes are followed successively by the first through hole, the second through hole and third through-hole from left to right.
Photoelectric sensing unit is mainly made up of laser instrument, two photodiodes and fixed value resistance.Laser instrument, two photodiodes are located at respectively in housing corresponding to position under through hole.Laser instrument opens and closes by a switch control.The negative pole of photodiode connects respectively direct supply, anodal respectively accordingly by fixed value resistance ground connection.The through hole mediating in three through holes, the second through hole under be provided with above-mentioned laser instrument.The laser instrument of the present embodiment adopts conventional laser pen, and in the time that laser pen is worked, light spot is to the top of window frame, owing to being concentrated light, light can scattering so, can person thefted not discover so that walk around this alarm, there is stronger disguise.Under remaining two through hole, be provided with photodiode, for receiving thief in the time crossing windowsill, laser pen exposes to thief's trouser legs, sole and the diffuse light that forms.The light intensity of considering diffuse light is very little, and the electric current that photodiode passes through is less, thereby the voltage signal producing is less, needs to arrange to be specifically designed to this voltage signal amplifying signal amplifying circuit.
The signal processing unit that the present embodiment provides is mainly made up of single-chip microcomputer and the above-mentioned signal amplification circuit of mentioning.The connection corresponding to photodiode respectively of two input ends of signal amplification circuit.Two output terminals of signal amplification circuit connect respectively the external interrupt interface of single-chip microcomputer.
As Fig. 4, in the present embodiment, signal amplification circuit is LM358 type operational amplifier.Single-chip microcomputer is 89C51 type single-chip microcomputer, two input ends that are connected respectively LM358 of two photodiodes.Two output terminals of LM358 are connected respectively external interrupt interface INT0, the INT1 of 89C51 single-chip microcomputer.
This indoor alarm equipment, as long as user opens above-mentioned switch, can enter duty.The light beam irradiates of laser pen is to the top of window frame, often adopt the materials such as ceramic tile to lay due to the top of window frame, therefore light beam is that mirror-reflection can not reflex to second, third through hole, even if the top of window frame is metope material, because the top of window frame is larger apart from this indoor alarm equipment distance, the light after diffuse reflection also very faint being difficult to is collected by the photodiode of second, third through hole below.In the time that burglary person passes the second through hole top, because thief's health is less than 30cm apart from the distance of windowsill, be enough to be captured the lower voltage signal of formation by diode thereby now laser pen is irradiated to the intensity of diffuse reflection light beam that thief's health causes, after the amplifying circuit that this voltage signal entered signal processing unit amplifies, form enable signal and be sent to the external interrupt interface of 51 single-chip microcomputers, trigger and interrupt, thereby the hummer work that Micro Controller Unit (MCU) driving is attached thereto is with warning thief and prompting resident family.
The indoor alarm equipment that the present embodiment provides, is located on indoor windowsill.As shown in Figure 1 and Figure 2, this indoor alarm equipment is mainly made up of the housing, photoelectric sensing unit, signal processing unit, hummer and the direct supply that are provided with three through holes.Photoelectric sensing unit, signal processing unit and hummer are located at respectively in housing.Photoelectric sensing, hummer communicate to connect with signal processing unit respectively, and photoelectric sensing unit, signal processing unit and hummer are by above-mentioned DC power supply.The housing that the present embodiment provides be a sealing, inside is provided with the cube of cavity structure.
Above-mentioned housing is fixed on windowsill by gluing sheet, and the length direction of housing is parallel with windowsill, referring to Fig. 3.
The photoelectric sensing unit that the present embodiment provides is circuit structure and the laser instrument that two photodiodes are in parallel.Laser instrument opens by a switch control, is user and controls the switch of this alarm work.The negative pole of photodiode connects respectively DC power cathode, and the positive pole of photodiode is connected with signal processing unit, referring to Fig. 5.
Through hole on housing is distributed in the top of housing equally spacedly successively along shell length direction, referring to Fig. 1.Three holes are followed successively by the first through hole, the second through hole and third through-hole from left to right.The through hole mediating in three through holes, the second through hole under be provided with above-mentioned laser instrument.The laser instrument of the present embodiment adopts conventional laser pen, and in the time that laser pen is worked, light spot is to the top of window frame, owing to being concentrated light, light can scattering so, can person thefted not discover so that walk around this alarm, there is stronger disguise.Under remaining two through hole, be provided with photodiode, for receiving thief in the time crossing windowsill, laser pen exposes to thief's trouser legs, sole and the diffuse light that forms.
Further, signal processing unit is a relay.The two ends of the coil of this relay connect respectively input end and the output terminal formation control loop of photoelectric sensing unit, and the two ends that the moving contact of relay connects respectively hummer form controlled loop, referring to Fig. 5.
The indoor alarm equipment of the present embodiment is after user opens, in the time that have thief to stride across from windowsill top night, because thief's health is less than 30cm apart from the distance of windowsill, be enough to be captured by diode thereby now laser pen is irradiated to the intensity of diffuse reflection light beam that thief's health causes, the diode of reversal connection becomes conducting from cut-off state, thereby the coil of relay has electric current process, make iron core produce the armature of magnetic force band motor type relay, make the contact of relay be pulled to moving contact by stationary contact, thereby make controlled circuit conducting, hummer work.
Claims (10)
1. an indoor alarm equipment, be located on indoor windowsill, it is characterized in that comprising the housing, photoelectric sensing unit, signal processing unit, hummer and the direct supply that are provided with some through holes, described photoelectric sensing unit, signal processing unit and hummer are located at respectively in housing, described photoelectric sensing unit, hummer communicate to connect with signal processing unit respectively, and described photoelectric sensing unit, signal processing unit and hummer are by described DC power supply.
2. indoor alarm equipment according to claim 1, it is characterized in that described housing be a sealing, inside is provided with the cube of cavity structure.
3. indoor alarm equipment according to claim 1, it is characterized in that described photoelectric sensing unit comprises laser instrument, two photodiodes and fixed value resistance, described laser instrument opens and closes by a switch control, the negative pole of described photodiode connects respectively described direct supply, anodal respectively accordingly by described fixed value resistance ground connection.
4. indoor alarm equipment according to claim 3, it is characterized in that described signal processing unit comprises a signal amplification circuit and single-chip microcomputer, the input end of described signal amplification circuit is connected with photodiode respectively, and the output terminal of signal amplification circuit connects respectively the external interrupt interface of single-chip microcomputer.
5. indoor alarm equipment according to claim 4, it is characterized in that described signal amplification circuit is LM358 type operational amplifier, described single-chip microcomputer is 89C51 type single-chip microcomputer, two input ends that are connected respectively LM358 of described two photodiodes, two output terminals of LM358 are connected respectively external interrupt interface INT0, the INT1 of 89C51 single-chip microcomputer.
6. indoor alarm equipment according to claim 2, it is characterized in that described photoelectric sensing unit is circuit structure and the laser instrument that two photodiodes are in parallel, described laser instrument opens and closes by a switch control, the negative pole of described photodiode connects respectively described signal processing unit, and the positive pole of photodiode is connected with DC power cathode.
7. indoor alarm equipment according to claim 6, it is characterized in that described signal processing unit is a relay, the two ends of the coil of relay connect respectively input end and the output terminal formation control loop of photoelectric sensing unit, and the two ends that the moving contact of relay connects respectively described hummer form controlled loop.
8. according to the indoor alarm equipment described in claim 5 or 7, it is characterized in that described housing is fixed on windowsill by gluing sheet, the length direction of described housing is parallel with windowsill.
9. indoor alarm equipment according to claim 8, is characterized in that the through hole on described housing is three, and described through hole is distributed in the top of described housing equally spacedly successively along shell length direction.
10. indoor alarm equipment according to claim 9, it is characterized in that the through hole that mediates in described three through holes under be provided with described laser instrument, under remaining two through hole, correspondence is provided with a photodiode respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410154488.3A CN103886701B (en) | 2014-04-17 | 2014-04-17 | Indoor alarm |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410154488.3A CN103886701B (en) | 2014-04-17 | 2014-04-17 | Indoor alarm |
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| Publication Number | Publication Date |
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| CN103886701A true CN103886701A (en) | 2014-06-25 |
| CN103886701B CN103886701B (en) | 2017-01-11 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
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| CN201410154488.3A Expired - Fee Related CN103886701B (en) | 2014-04-17 | 2014-04-17 | Indoor alarm |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104408849A (en) * | 2014-12-23 | 2015-03-11 | 华南师范大学 | Door/window alarm equipment based on optical fiber sensing |
| CN106327780A (en) * | 2016-08-28 | 2017-01-11 | 桂林市晶准测控技术有限公司 | Smoke alarm system |
| CN110164106A (en) * | 2019-06-24 | 2019-08-23 | 安徽晨光电子科技有限公司 | A kind of the child sitting gesture monitoring device and its method of controllable desk lamp |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104408849A (en) * | 2014-12-23 | 2015-03-11 | 华南师范大学 | Door/window alarm equipment based on optical fiber sensing |
| CN104408849B (en) * | 2014-12-23 | 2017-02-22 | 华南师范大学 | Door/window alarm equipment based on optical fiber sensing |
| CN106327780A (en) * | 2016-08-28 | 2017-01-11 | 桂林市晶准测控技术有限公司 | Smoke alarm system |
| CN110164106A (en) * | 2019-06-24 | 2019-08-23 | 安徽晨光电子科技有限公司 | A kind of the child sitting gesture monitoring device and its method of controllable desk lamp |
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| CN103886701B (en) | 2017-01-11 |
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Granted publication date: 20170111 Termination date: 20190417 |