CN201359752Y - Portable anti-theft alarm - Google Patents
Portable anti-theft alarm Download PDFInfo
- Publication number
- CN201359752Y CN201359752Y CNU2009200633704U CN200920063370U CN201359752Y CN 201359752 Y CN201359752 Y CN 201359752Y CN U2009200633704 U CNU2009200633704 U CN U2009200633704U CN 200920063370 U CN200920063370 U CN 200920063370U CN 201359752 Y CN201359752 Y CN 201359752Y
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- CN
- China
- Prior art keywords
- alarm
- pressure sensor
- chip microcomputer
- optical sensor
- theft 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.)
- Expired - Fee Related
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Abstract
The utility model discloses a portable anti-theft alarm, which is characterized in that the portable anti-theft alarm comprises a single chip microcomputer, an alarm, a light sensor and a pressure sensor, the light sensor, the pressure sensor and the alarm are all connected with the single chip microcomputer, wherein, both the light sensor and the pressure sensor are arranged on a valuable object which needs to be protected, the pressure sensor adopts a ceramic capacitive pressure sensor, and the light sensor is a photoelectric triode. The portable anti-theft alarm adopts the light sensor, the pressure sensor and the single chip microcomputer to realize the function of anti-theft alarm, which is easy to realize and has good anti-theft effect.
Description
Technical field
The utility model belongs to sensor and electronic technology field, relates to a kind of portable security alarm alarm.
Background technology
Along with socioeconomic growing, the antitheft problem that has become people more and more to be concerned about.Iron gate barred window etc. can not bring the too many sense of security to people, and society is urgent day by day to the demand of alarm equipment.Intelligent alarm system is to ensure that property safety is the technological prevention system that purpose is set up.
The utility model content
The utility model wants the technical solution problem that a kind of portable security alarm alarm is provided, and uses optical sensor and pressure transducer and chip microcontroller anti-theft alarm function.
The utility model is to solve the problems of the technologies described above the technical scheme that is adopted to be:
A kind of portable security alarm alarm is characterized in that, comprises single-chip microcomputer, alarm and optical sensor and pressure transducer, and described optical sensor, pressure transducer and alarm all are connected with described single-chip microcomputer.Wherein optical sensor and pressure transducer all are arranged on the valuables that need protection.
Described pressure transducer adopts ceramic capacitive pressure sensors.
Described optical sensor is a phototriode.
The beneficial effects of the utility model have:
When the robber steals article, must or touch article near article, the utility model uses pressure transducer and optical sensor dexterously, as robber during near article, its effect of optical sensor, when the robber touched article, pressure transducer and optical sensor can work simultaneously, realized from many aspects antitheft, good anti-theft effect.
Description of drawings
Fig. 1 is the circuit block diagram of the utility model embodiment 1 correspondence.
Embodiment
The utility model is described in further detail below in conjunction with the drawings and specific embodiments.
Embodiment 1:
As shown in Figure 1, a kind of portable security alarm alarm is characterized in that, comprises single-chip microcomputer, alarm and optical sensor and pressure transducer, and described optical sensor, pressure transducer and alarm all are connected with described single-chip microcomputer.Wherein optical sensor and pressure transducer all are arranged on the valuables that need protection.
Pressure transducer adopts the CCPS312 ceramic capacitive pressure sensors.Erosion-resisting dry type ceramic capacitive pressure sensors does not have the transmission of liquid, pressure process acts directly on the front surface of ceramic diaphragm, the electric capacitance change ratio of the electrode of substrate and membrance electrode and pressure size, make diaphragm produce the displacement of 0.03mm, the changes in capacitance value is through laser trimming, sensor-specific signal conditioning circuit ASIC amplifies the DC voltage of output up to 4000mV, the trip temperature compensation of going forward side by side of the temperature of the built-in continuous measuring media of temperature sensor.During overload, diaphragm is attached on the ceramic substrate and can damage.When pressure returns to just often, its performance is not affected.Thoroughly having solved the shortcoming of lower range overload capacity difference, is the upgraded product of diffuse si sensor.Standardized high output has extremely strong antijamming capability, joins the dedicated line plate and can carry out big span shift (10: 1).Sensor has very high temperature stability and time stability, carries temperature compensation-20～80 ℃, and can directly contact with most media.
CCPS312 ceramic capacitive pressure sensors technical parameter:
Supply voltage: 5VDC
Range ability: 5kPa～2Mpa
Response time:＜10mS
Composition error (comprising: linearity, sluggishness, repeatability): 0.1...0.2FS%
Output at zero point: 20%VDC
Full scale output: 80%VDC
Temperature characterisitic (temperature compensation scope: 0～70 ℃): ± 0.015%FS/ ℃
Stability:＜0.2%FSO/
Supply current:＜2.2mA
Working temperature :-40～125 ℃
Physical dimension: 32.4 * 5.25...7.12mm
Described optical sensor is a phototriode.The principle of phototriode is, base stage is experienced the light time, and phototriode is equivalent to the switch of a closure, and base stage is not subjected to the light time, and phototriode is equivalent to the switch of a conducting.Just can detect this phototriode by this switching effect and whether covered, whether have the robber approaching thereby detect.
Claims (3)
1, a kind of portable security alarm alarm is characterized in that, comprises single-chip microcomputer, alarm and optical sensor and pressure transducer, and described optical sensor, pressure transducer and alarm all are connected with described single-chip microcomputer.
2, portable security alarm alarm according to claim 1 is characterized in that, described pressure transducer adopts ceramic capacitive pressure sensors.
3, portable security alarm alarm according to claim 1 is characterized in that, described optical sensor is a phototriode.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2009200633704U CN201359752Y (en) | 2009-02-25 | 2009-02-25 | Portable anti-theft alarm |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2009200633704U CN201359752Y (en) | 2009-02-25 | 2009-02-25 | Portable anti-theft alarm |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201359752Y true CN201359752Y (en) | 2009-12-09 |
Family
ID=41425517
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2009200633704U Expired - Fee Related CN201359752Y (en) | 2009-02-25 | 2009-02-25 | Portable anti-theft alarm |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201359752Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2015154572A1 (en) * | 2014-10-22 | 2015-10-15 | 中兴通讯股份有限公司 | Anti-theft method for mobile terminal and mobile terminal thereof |
| TWI552902B (en) * | 2014-03-05 | 2016-10-11 | 元智大學 | Burglarproof system |
-
2009
- 2009-02-25 CN CNU2009200633704U patent/CN201359752Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWI552902B (en) * | 2014-03-05 | 2016-10-11 | 元智大學 | Burglarproof system |
| WO2015154572A1 (en) * | 2014-10-22 | 2015-10-15 | 中兴通讯股份有限公司 | Anti-theft method for mobile terminal and mobile terminal thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20091209 Termination date: 20100225 |