CN107845221A - A kind of design of the intelligent building safe examination system based on MSP430 - Google Patents
A kind of design of the intelligent building safe examination system based on MSP430 Download PDFInfo
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- CN107845221A CN107845221A CN201610823901.XA CN201610823901A CN107845221A CN 107845221 A CN107845221 A CN 107845221A CN 201610823901 A CN201610823901 A CN 201610823901A CN 107845221 A CN107845221 A CN 107845221A
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- 238000013461 design Methods 0.000 title claims abstract description 9
- 238000001514 detection method Methods 0.000 claims abstract description 22
- 230000005540 biological transmission Effects 0.000 claims abstract description 15
- 230000003750 conditioning effect Effects 0.000 claims abstract description 4
- 230000006698 induction Effects 0.000 claims abstract description 4
- 230000005616 pyroelectricity Effects 0.000 claims abstract description 4
- 238000007493 shaping process Methods 0.000 claims description 3
- 238000010586 diagram Methods 0.000 description 12
- 238000005516 engineering process Methods 0.000 description 11
- 238000011161 development Methods 0.000 description 6
- 230000010355 oscillation Effects 0.000 description 6
- 230000001960 triggered effect Effects 0.000 description 4
- 230000003321 amplification Effects 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 230000010358 mechanical oscillation Effects 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 238000003199 nucleic acid amplification method Methods 0.000 description 3
- 230000001172 regenerating effect Effects 0.000 description 3
- 230000008859 change Effects 0.000 description 2
- 230000035945 sensitivity Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 230000008033 biological extinction Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 230000009977 dual effect Effects 0.000 description 1
- 230000036541 health Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 230000010349 pulsation Effects 0.000 description 1
- 239000010453 quartz Substances 0.000 description 1
- 230000008054 signal transmission Effects 0.000 description 1
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N silicon dioxide Inorganic materials O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
- 238000012795 verification Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
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- G—PHYSICS
- G08—SIGNALLING
- G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
- G08B13/00—Burglar, theft or intruder alarms
- G08B13/18—Actuation by interference with heat, light, or radiation of shorter wavelength; Actuation by intruding sources of heat, light, or radiation of shorter wavelength
- G08B13/189—Actuation by interference with heat, light, or radiation of shorter wavelength; Actuation by intruding sources of heat, light, or radiation of shorter wavelength using passive radiation detection systems
- G08B13/19—Actuation by interference with heat, light, or radiation of shorter wavelength; Actuation by intruding sources of heat, light, or radiation of shorter wavelength using passive radiation detection systems using infrared-radiation detection systems
- G08B13/191—Actuation by interference with heat, light, or radiation of shorter wavelength; Actuation by intruding sources of heat, light, or radiation of shorter wavelength using passive radiation detection systems using infrared-radiation detection systems using pyroelectric sensor means
-
- 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
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Business, Economics & Management (AREA)
- Emergency Management (AREA)
- Selective Calling Equipment (AREA)
Abstract
The present invention relates to a kind of design of the intelligent building safe examination system based on MSP430, the present invention mainly builds pyroelectricity circuit using BISS0001 chips, the conditioning of analog detection signal is provided, outer signals are gathered with infrared induction pipe, the wireless transmission and receiving of data-signal is carried out with integrated chip PT2262/PT2272 L4.Part is being wirelessly transferred, the present invention realizes the detection to four road signals using toggle switch, while we are also provided with the circuit of hand switch detection emitting portion, with the status transmission of LED indication signal.
Description
Technical field
Patent of the present invention is related to singlechip technology field, more particularly to a kind of intelligent building safe examination system based on MSP430
Design.
Background technology
With the development of science and technology, AFE(analog front end) detection has been successfully applied in our daily lifes.As remote control, acoustic control
Lamp, safety check etc. the material object that can see in we live, their principle is nothing more than being that make use of AFE(analog front end) to detect skill
Art.Foreign countries are always the level of being in a leading position, particularly application of the U.S. in electric detective technology field is suitable in this regard
It is ripe, have in every field and dabble.And for the country, detection technique is to start to rise in the 80, nineties,
Its development starting is more external late a lot.But it is interior in recent years, the growth momentum of domestic science and technology is swift and violent, gradual to shorten
With gap between them.As utilized in our present life remote control, the light controller in corridor, in hospital
Patient calling system, navigation, fire-fighting etc. are all that make use of AFE(analog front end) detection technique.
Wireless technology it is growing, Radio Transmission Technology application is increasingly received by all trades and professions.Its appearance is not
The only requirement of people, and people aspire after perfection a kind of standard of life.External development is also more early than domestic
A lot, and it is always to maintain the leading position, incipient be wirelessly transferred all is to be used in military field, and civilian is seldom, this
Limit the development being wirelessly transferred.With the development of the society, economic fast development, Radio Transmission Technology are also just gradually opened
Put, for example, present remote control, phone, monitoring system etc. be all have using Radio Transmission Technology carry out the transmission of signal with it is anti-
Feedback.Radio Transmission Technology obtains in fields such as modernization cell, traffic, transport, water conservancy, shipping, public security, fire-fightings at home
It is widely applied.Huge effect has particularly been played in the communications field, has also been remain always in field of wireless transmission leading
Posture.
Patent of invention content
The present invention mainly builds pyroelectricity circuit using BISS0001 chips, there is provided the conditioning of analog detection signal, use are infrared
Induction tube gathers outer signals, and the wireless transmission and receiving of data-signal is carried out with integrated chip PT2262/PT2272-L4.
Part is wirelessly transferred, the present invention realizes the detection to four road signals using toggle switch, while we are also provided with hand switch
The circuit of emitting portion is detected, with the status transmission of LED indication signal.
Brief description of the drawings
Fig. 1：The system complete machine theory diagram.
Fig. 2：Signal condition block diagram.
Fig. 3：BISS0001 pin figures.
Fig. 4：Each point oscillogram under not reproducible triggered mode of operation.
Fig. 5：Each point oscillogram under repeatable triggered mode of operation.
Fig. 6：LM358 built-in functions and pin figure.
Fig. 7：Wireless launcher schematic diagram.
Fig. 8：Receive transmitter schematic diagram.
Fig. 9：PT2262/PT2272 pin pictorial diagram.
Figure 10：Superregenerative detection circuit diagram.
Embodiment
In order that the object, technical solution and advantage of patent of the present invention are more clearly understood, below in conjunction with accompanying drawing and implementation
Example, patent of the present invention is further elaborated.It should be appreciated that specific embodiment described herein is only explaining
Patent of the present invention, is not intended to limit the present invention patent.
The present invention mainly builds pyroelectricity circuit using BISS0001 chips, there is provided the conditioning of analog detection signal, uses
Infrared induction pipe gathers outer signals, and the wireless transmission of data-signal is carried out with connecing with integrated chip PT2262/PT2272-L4
Receive.Part is being wirelessly transferred, the present invention realizes the detection to four road signals using toggle switch, while we are also provided with manually
The circuit of switch detection emitting portion, with the status transmission of LED indication signal.
Further, the system complete machine theory diagram is as shown in figure 1, the present invention is believed by the human body of pyroelectric sensor detection
Number, amplify through inertia, two-way amplitude discrimination, export logic level, deliver to the data encoding input of transmitter module, sent out after modulated
Penetrate；Receiving terminal receives the data-signal, amplified, shaping, decoding, delivers to the input of MSP430 single-chip microcomputers, realizes its software
Partial function.Transmitting/receive process, realize being wirelessly transferred and handling for data.
Further, signal condition block diagram of the invention is as shown in Fig. 2 this unit uses integrated chip BISS0001 to letter
Number it is acquired and nurses one's health.BISS0001 is an infrared sensor signal processor, and it has independent high input impedance computing
It amplifier, can be matched with multiple sensors, carry out Signal Pretreatment.Inside is provided with time delay timer and blocking time timing
Device, its output is made in certain scope to higher than setting voltage and carrying out upset less than setting voltage by two-way amplitude discriminator
It is interior, while it also has the effect for suppressing interference.BISS0001 pin figures for more reliable realization design as shown in figure 3, want
Ask, ensure the success of design, the internal structure circuit of chip is studied, and the triggering mode of its 1 pin is carried out
Emulation.Each point waveform under not reproducible triggered mode of operation is as shown in figure 4, each point waveform is as schemed under repeatable triggered mode of operation
Shown in 5.
Further, present invention employs LM358 amplifiers to be amplified to signal.Include two high increase inside LM358
Beneficial, independent, internal frequency compensation double operational, suitable for the very wide single supply of voltage range, and is also applied for dual power supply
Working method, its application include making for sensor amplifier, DC current gain module and other all available single supply power supplies
Used with the place of amplifier.Its pinouts and pin function such as Fig. 6.
Further, wireless transmitting system transmitter unit block diagram of the invention is as shown in fig. 7, receiving unit block diagram such as Fig. 8
It is shown.In this part of design, completed using coding and decoding PT2262/PT2272-L4 integrated chips to launching with connecing
The realization of the function of receiving portions.PT2262 is a kind of general coding and decoding circuit of low-power consumption low price of CMOS technology manufacture,
PT2262/PT2272 can at most have 12 (A0-A11) three-state address end pipe pin, and any combination can provide 531441 address codes,
PT2262 can at most have 6 (D0-D5) data terminal pins, and the address code and numeric data code of setting can be used for from 17 pin Serial outputs
Wireless transmission technique.It is illustrated in figure 9 PT2262/PT2272 pin pictorial diagram.
Further, the encoded signal that coding chip PT2262 of the invention is sent by：Address code, numeric data code, synchronous code
A complete code word is formed, after decoding chip PT2272 receives signal, its address code after comparing verification twice, VT pin
High level is just exported, at the same time corresponding data pin also exports high level, if transmitting terminal presses ＆ hold always, coding chip
Also it can continuously launch, 4 groups of character codes are at least launched when PT2262 launches every time, 2272 only with detecting identical twice in succession
Location code adds numeric data code " 1 " in numeric data code can just be driven, and corresponding data output end is high level and driving VT ends are synchronously high
Level.Because the characteristics of wireless transmission, first group of character code is very easy to be disturbed by zero level, error code is often produced, so journey
Sequence can be with discard processing.There is one piece of 315MHz quartz oscillator on PT2262, it is when high-frequency ac voltage is added on
Behind chip both ends, chip will produce mechanical oscillation with the change of AC signal.The physical dimension of chip and the timing of structure one, it
Itself there are an intrinsic mechanical oscillation frequencies.When the frequency of external high-frequency signal is equal with the vibration frequency that chip is intrinsic,
Its mechanical oscillation is most strong, produces resonance phenomena.PT2272 decoding chips have different suffix, represent different functions, there is L4/
M4/L6/M6 point, wherein L represents to latch output, as long as data are properly received with regard to that can be always maintained at corresponding level state, directly
Change when being changed to next remote-control data.M represents unlatching output, and the level of data pin output is instantaneous and and hair
Penetrate end and whether launch corresponding, can be used for the control of similar crawl.The 6 of suffix and 4 represent the parallel control passage in You Ji roads,
When using 4 channel parallel data（PT2272-M4), corresponding geocoding should be 8, if the parallel data using 6 tunnels
When (PT2272-M6), corresponding geocoding should be 6.Setting the principle of address code is：Same system address code is necessary
Unanimously；Different systems can be distinguish between by different address codes.PT2262 and PT2272 must be complete except geocoding
Consistent outer, oscillation resistance must also match, and otherwise receiving distance can become near or can not receive.
Further, PT2272-L4 integrated chips are using superregenerative detection mode.Superregenerative detection circuit diagram is as schemed
Shown in 10, superregenerative refers to a part for High frequency amplification output signal to be sent to input in a manner of positive feedback, makes amplifier
Sensitivity and selectivity be all improved.Ultra-audio circuit refers to that oscillating voltage caused by oscillating circuit itself is more positive and negative than regenerating
The effect of feedback is also strong, so being called ultra-audio circuit.Armstrong circuit is also referred to as superregenerative detection circuit, and it is actually work
Make the regenerative detection circuit under intermittent oscillation state.Usual regenerative reception circuit is by detection, low frequency amplification, shaping, decoding etc.
Link forms.Using superregenerative detection mode, only with one-level with regard to signal behavior, amplification and demodulation function can be completed.Make superregenerative
The key issue of circuit work is the higher-order of oscillation for allowing circuit to produce batch (-type), and the condition for producing the higher-order of oscillation must possess and have
The control voltage of batch (-type), this voltage are generally extinction voltage, and frequency of oscillation is about 20 ~ 60kHz, can influence high-frequency generator
Work, it is not continuous but interval to make its vibration.Voltage pulsation of the oscillator oscillation amplitude of this interval in by circuit
Influence very big, reflection sensitivity.
The preferred embodiment of patent of the present invention is the foregoing is only, is not intended to limit the invention patent, it is all at this
All any modification, equivalent and improvement made within the spirit and principle of patent of invention etc., should be included in patent of the present invention
Protection domain within.
Claims (2)
1. a kind of design of the intelligent building safe examination system based on MSP430, it is characterised in that the present invention mainly utilizes
BISS0001 chips build pyroelectricity circuit, there is provided the conditioning of analog detection signal, gather outer signals with infrared induction pipe, use
Integrated chip PT2262/PT2272-L4 carries out the wireless transmission and receiving of data-signal；It is being wirelessly transferred part, present invention profit
The detection to four road signals is realized with toggle switch, while we are also provided with the circuit of hand switch detection emitting portion, use
The status transmission of LED indication signal.
A kind of 2. design of intelligent building safe examination system based on MSP430 according to claim 1, it is characterised in that this
The human body signal that invention is detected by pyroelectric sensor, amplify through inertia, two-way amplitude discrimination, export logic level, deliver to transmitting mould
The data encoding input of block, launch after modulated；Receiving terminal receives the data-signal, amplified, shaping, decoding, delivers to
The input of MSP430 single-chip microcomputers, realize the function of its software section.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610823901.XA CN107845221A (en) | 2016-09-17 | 2016-09-17 | A kind of design of the intelligent building safe examination system based on MSP430 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610823901.XA CN107845221A (en) | 2016-09-17 | 2016-09-17 | A kind of design of the intelligent building safe examination system based on MSP430 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107845221A true CN107845221A (en) | 2018-03-27 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201610823901.XA Pending CN107845221A (en) | 2016-09-17 | 2016-09-17 | A kind of design of the intelligent building safe examination system based on MSP430 |
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| CN (1) | CN107845221A (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2857122Y (en) * | 2005-11-10 | 2007-01-10 | 西安高远公路养护技术有限公司 | Multifunction mini infrared radio alarmer |
| CN204014177U (en) * | 2014-06-09 | 2014-12-10 | 广东凯乐斯光电科技有限公司 | A kind of infrared remote sensing lamp dimmer with Radio Control Function |
| CN204288408U (en) * | 2014-12-23 | 2015-04-22 | 丽水学院 | Four road wireless theft-proof alarms |
-
2016
- 2016-09-17 CN CN201610823901.XA patent/CN107845221A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2857122Y (en) * | 2005-11-10 | 2007-01-10 | 西安高远公路养护技术有限公司 | Multifunction mini infrared radio alarmer |
| CN204014177U (en) * | 2014-06-09 | 2014-12-10 | 广东凯乐斯光电科技有限公司 | A kind of infrared remote sensing lamp dimmer with Radio Control Function |
| CN204288408U (en) * | 2014-12-23 | 2015-04-22 | 丽水学院 | Four road wireless theft-proof alarms |
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Application publication date: 20180327 |
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