CN103794019A - Infrared-ray alarm system - Google Patents
Infrared-ray alarm system Download PDFInfo
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- CN103794019A CN103794019A CN201210435710.8A CN201210435710A CN103794019A CN 103794019 A CN103794019 A CN 103794019A CN 201210435710 A CN201210435710 A CN 201210435710A CN 103794019 A CN103794019 A CN 103794019A
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Abstract
Disclosed is an infrared-ray alarm system which belongs to the technical field of alarm systems and the invention particularly relates to an infrared-ray alarm system. The invention provides the infrared-ray alarm system which has a real-time alarm function. The alarm system includes a single-chip microcomputer, a pyroelectric infrared sensor, an alarm circuit and an RS-485 bus system. The structural key points of the alarm system are that a port of the single-chip microcomputer is connected with a port of the pyroelectric infrared sensor, a port of the alarm circuit and a port of the RS-485 bus system.
Description
Technical field
the invention belongs to warning system technical field, relate in particular to a kind of Iris.
Background technology
along with the continuous improvement of residential quarters environment, people also have higher requirement to the security of residential quarters.The current residential quarters overwhelming majority has used infrared camera to realize anti-theft feature, but this side
method weak point is to lack real time alarm function, if it and IR alarm system are used in conjunction with, can realize Real-Time Monitoring personnel and cross the warning function of enclosure wall, thereby reach the object that improves community security.
Summary of the invention
the present invention is exactly for the problems referred to above, and a kind of Iris that possesses real time alarm function is provided.
for achieving the above object, the present invention adopts following technical scheme, the present invention includes single-chip microcomputer, pyroelectric infrared sensor, warning circuit and RS-485 bus system, its structural feature one-chip machine port is connected with pyroelectric infrared sensor port, warning circuit port, RS-485 bus system port respectively.
as a kind of preferred version, single-chip microcomputer of the present invention adopts AT89C52 single-chip microcomputer.
as another kind of preferred version, pyroelectric infrared sensor of the present invention adopts BIS0001 chip.
in addition, warning circuit of the present invention adopts KD-9562 chip.
beneficial effect of the present invention: single-chip microcomputer of the present invention and pyroelectric infrared sensor compositing terminal passive type IR alarm system, main frame is responsible for the communication work of slave, in the time that slave has alerting signal to produce, host PC realizes and the communicating by letter of slave in the mode of inquiry, judge the type of slave signal simultaneously, if report to the police, host PC shows by inner software the state that each slave is current.Host PC is sent chimes of doom simultaneously, the situation of reminding operator on duty to occur by camera overview alarm area.
Accompanying drawing explanation
in order to make technical matters solved by the invention, technical scheme and beneficial effect clearer, below in conjunction with the drawings and the specific embodiments, the present invention is further elaborated.Should be appreciated that embodiment described herein, only in order to explain the present invention, is not intended to limit the present invention.
fig. 1 is schematic block circuit diagram of the present invention.
fig. 2 is pyroelectric infrared sensor circuit theory diagrams of the present invention.
Embodiment
as shown in the figure, the present invention includes single-chip microcomputer, pyroelectric infrared sensor, warning circuit and RS-485 bus system, one-chip machine port is connected with pyroelectric infrared sensor port, warning circuit port, RS-485 bus system port respectively.
described single-chip microcomputer adopts AT89C52 single-chip microcomputer.AT89C52 single-chip microcomputer has low-power consumption, high-speed FLASH ROM, supports the serial communication of full duplex, has stronger I/O driving force and has the features such as good compatibility with RS-485 interface chip, meets the telecommunication requirement of native system.
described pyroelectric infrared sensor adopts BIS0001 chip.BIS0001 chip is to block by two-stage calculation amplifier (OP1, OP2), voltage comparator, state controller, back off timer, output the digital-to-analogue that timer and reference power source etc. form to mix special IC, have low in energy consumption, input impedance is high, antijamming capability is strong is connected the only a small amount of peripheral cell of need with pyroelectric infrared sensor with the advantage such as operating voltage Fan Kuan and can forms autoalarm.The principle of work of this circuit is: in the time having people to enter defence area, focus on by Fresnel Lenses, pyroelectric infrared sensor receives the infrared signal of human body, and is translated into electric signal.This signal is by after low-pass filter circuit filtering high frequency interference noise, be sent to the operational amplifier OP1 in BISS0001, after preposition amplification, carry out secondary amplification by capacitive coupling to operational amplifier OP2, after the two-way amplitude discrimination of voltage comparator, be the P1.3 that 1.3 s high level are sent into single-chip microcomputer at the 2nd pin output width, wake communicating by letter of single-chip microcomputer and host computer up.Reach warning object.In actual applications, can be by changing BISS0001 the 3rd, 4 resistance of pin and the size of electric capacity, also can regulate the width of the 2nd pin output high level.In addition, BISS0001, after the 2nd pin output is by high step-down, will enter its " triggering blocking time ".The default time is 6 s.Can regulate by BISS0001 the 5th, 6 resistance of pin and the size of electric capacity.Even if there is like this people to enter defence area, the 2nd pin of BISS0001 can not exported high level yet, thereby avoids repetition of alarms, reduces system power dissipation.
described warning circuit adopts KD-9562 chip.Because integrated chip KD-9562 can select for 8 kinds of sound, in the time of circuit design, select chimes of doom.
in order to make system have a friendly interface, the Software for Design of host PC mainly completes two-part task.The one, single-chip microcomputer is carried out to data query; The 2nd, design the mutual good interface of a personal-machine by higher level lanquage.Native system utilizes VB software to design, and can show in real time the residing state of current each check point, and the alert data of every day etc., operator on duty also can utilize this interface to go to control the duty of each check point system.RS-485 bus has that circuit design is simple, Software for Design is convenient, low cost and other advantages, and in serial communication, application is very extensive.Native system makes full use of this feature of RS-485 bus, has realized PC main frame and the telecommunication of AT89C52 slave multimachine, can be satisfied with the needs of IR alarm system completely.
be understandable that, above about specific descriptions of the present invention, only for being described, the present invention is not limited to the described technical scheme of the embodiment of the present invention, those of ordinary skill in the art is to be understood that, still can modify or be equal to replacement the present invention, to reach identical technique effect; Use needs as long as meet, all within protection scope of the present invention.
Claims (4)
1. an Iris, comprise single-chip microcomputer, pyroelectric infrared sensor, warning circuit and RS-485 bus system, its structural feature one-chip machine port is connected with pyroelectric infrared sensor port, warning circuit port, RS-485 bus system port respectively.
2. a kind of Iris according to claim 1, is characterized in that described single-chip microcomputer adopts AT89C52 single-chip microcomputer.
3. a kind of Iris according to claim 1, is characterized in that described pyroelectric infrared sensor adopts BIS0001 chip.
4. a kind of Iris according to claim 1, is characterized in that described warning circuit adopts KD-9562 chip.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210435710.8A CN103794019A (en) | 2012-11-05 | 2012-11-05 | Infrared-ray alarm system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210435710.8A CN103794019A (en) | 2012-11-05 | 2012-11-05 | Infrared-ray alarm system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103794019A true CN103794019A (en) | 2014-05-14 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210435710.8A Pending CN103794019A (en) | 2012-11-05 | 2012-11-05 | Infrared-ray alarm system |
Country Status (1)
| Country | Link |
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| CN (1) | CN103794019A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107533796A (en) * | 2014-12-16 | 2018-01-02 | 任哲洙 | Pedestrian's security system of crossing |
| CN109816949A (en) * | 2019-02-12 | 2019-05-28 | 贵州大学 | A kind of novel intelligent IR alarm system |
-
2012
- 2012-11-05 CN CN201210435710.8A patent/CN103794019A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107533796A (en) * | 2014-12-16 | 2018-01-02 | 任哲洙 | Pedestrian's security system of crossing |
| CN109816949A (en) * | 2019-02-12 | 2019-05-28 | 贵州大学 | A kind of novel intelligent IR alarm system |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20140514 |