CN203047169U - DSP (Digital Signal Processor)-based automobile anti-theft device - Google Patents
DSP (Digital Signal Processor)-based automobile anti-theft device Download PDFInfo
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- CN203047169U CN203047169U CN 201220629190 CN201220629190U CN203047169U CN 203047169 U CN203047169 U CN 203047169U CN 201220629190 CN201220629190 CN 201220629190 CN 201220629190 U CN201220629190 U CN 201220629190U CN 203047169 U CN203047169 U CN 203047169U
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Abstract
The utility model discloses a DSP (Digital Signal Processor)-based automobile anti-theft device, which comprises a fingerprint recognizer, a password opening unit, a DSP and an automobile door lock, wherein the fingerprint recognizer and the password opening unit are connected with an input end of the DSP respectively; and an output end of the DSP is connected with the automobile door lock. The adopted fingerprint recognizer is a U.ARE.U4000 fingerprint recognizer; and the adopted DSP is the DSP with a model number of TMS320F2812. According to the DSP-based automobile anti-theft device, the defects of low recognition of the fingerprint recognizer in the prior art and no standby opening device after invalidation of fingerprint recognition can be overcome, so that the door of an automobile can also be opened by the standby opening device when the fingers of an owner are soaked in liquid for a long time and fingerprints of the owner cannot be normally and effectively recognized by the fingerprint recognizer during input of fingerprint information.
Description
Technical field
The utility model belongs to DSP integrated application field, is specifically related to a kind of alarms and security systems for automobiles based on DSP.
Background technology
Nowadays Chinese society economy is just fast-developing, and automobile is also universal day by day as the important vehicle of modern city, yet the stolen event of automobile but more and more is subjected to people's attention.More traditional alarms and security systems for automobiles mainly adopts following dual mode: mechanical type anti-joyride device and electronic type anti-joyride device, still, these two kinds of anti-joyride devices fail fundamentally to prevent the behavior that the lawless person steals.
Because everyone fingerprint is different, its comparatively the evident difference characteristic can be used as the effective means of identity characteristic, and characteristic such as it has simply, and is practical has very good development and application prospect.Nowadays along with the fast development of automobile self energyization, the application of automobile electronics in automobile is more and more, because digital signal processor DSP has powerful calculation process ability, so often be used as core processor in automobile electronics, the utility model is exactly to utilize DSP to have multistage interrupt handling capacity and higher arithmetic speed realizes the antitheft of automobile.
Summary of the invention
Deficiency at the prior art existence, the purpose of this utility model is, a kind of alarms and security systems for automobiles based on DSP is provided, and this device can overcome the shortcoming of traditional mechanical type and electronic type anti-joyride device effectively, prevents that the lawless person from stealing automobile by the car theft key.
In order to realize above-mentioned task, the utility model adopts following technical scheme to be achieved:
A kind of alarms and security systems for automobiles based on DSP comprises finger-print recognising instrument, password unlatching unit, DSP and arrangements for automotive doors lock, and finger-print recognising instrument is opened the unit with password and linked to each other the phase-locked company of the mouth of DSP and arrangements for automotive doors respectively with the input end of DSP.
The utility model also has following technical characterstic:
Described finger-print recognising instrument adopts the U.ARE.U4000 fingerprint acquisition instrument.
It is the DSP of TMS320F2812 that described DSP adopts model.
The utility model can overcome the resolution of finger-print recognising instrument deficiency low and no standby unlocking unit after fingerprint recognition lost efficacy in the prior art, thereby when making at the input finger print information in the liquid because its finger is soaked in for a long time as the car owner, finger-print recognising instrument can't normally effectively be identified also can come the opening automobile car door by standby unlocking unit.
Description of drawings
Fig. 1 is annexation scheme drawing of the present utility model.
Fig. 2 is the utility model workflow scheme drawing.
Below in conjunction with drawings and Examples particular content of the present utility model is done explanation in further detail.
The specific embodiment
Below provide specific embodiment of the utility model, need to prove that the utility model is not limited to following specific embodiment, all equivalents of doing on present techniques scheme basis all fall into protection domain of the present utility model.
Defer to technique scheme, as shown in Figure 1, a kind of alarms and security systems for automobiles based on DSP comprises finger-print recognising instrument, password unlatching unit, DSP and arrangements for automotive doors lock, finger-print recognising instrument is opened the unit with password and is linked to each other the phase-locked company of the mouth of DSP and arrangements for automotive doors respectively with the input end of DSP.
Finger-print recognising instrument adopts the U.ARE.U4000 fingerprint acquisition instrument; Finger-print recognising instrument and password are opened the arm rest that the unit all is installed in the operator's saddle car door, and this handrail has individual handrail to cover, in that the time spent can not cover handrail.Open the unit at password two buttons are installed, one is used for selecting the fingerprint recognition pattern, and another is used for selecting password opening mode.
It is the DSP of TMS320F2812 that described DSP adopts model.This DSP is 32 fixed DSPs of the High Performance that is exclusively used in digital media applications of TIX (TI) exploitation, its core is C2000 type high-performance digital signal processor, CPU frequency is up to 150MHz, adopt Harvard's bus architecture pattern, have fast speed interrupt response and interrupt handling capacity, the interrupting information that can in time receive fingerprint acquisition instrument carries out calculation process.
Two kinds of patterns are arranged during the utility model work, as shown in Figure 2, a kind of is exactly fingerprint recognition pattern commonly used, another kind of then be as standby password opening mode when the fingerprint recognition mode failures even, when chaufeur need start arrangements for automotive doors, at first need to select start-up mode, here we have installed two buttons in addition on the keyboard of password unlatching unit, one is used for selecting the fingerprint recognition pattern, another one then is used for selecting password opening mode, if chaufeur has been selected the fingerprint recognition pattern, then also need import finger print information, just with certain finger of chaufeur, this finger must be the finger print information that in advance information of this fingerprint is stored in that finger among the DSP, then can't the opening automobile Door Lock otherwise the finger print information of input and prior institute's canned data are inconsistent, if fingerprint recognition mode failures even, reselect the selection password opening mode that touches the button, input corresponding password then, open Door Lock.
Claims (3)
1. alarms and security systems for automobiles based on DSP, it is characterized in that, comprise finger-print recognising instrument, password unlatching unit, DSP and arrangements for automotive doors lock, finger-print recognising instrument is opened the unit with password and is linked to each other the phase-locked company of the mouth of DSP and arrangements for automotive doors respectively with the input end of DSP.
2. the alarms and security systems for automobiles based on DSP as claimed in claim 1 is characterized in that, described finger-print recognising instrument adopts the U.ARE.U4000 fingerprint acquisition instrument.
3. the alarms and security systems for automobiles based on DSP as claimed in claim 1 is characterized in that, it is the DSP of TMS320F2812 that described DSP adopts model.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220629190 CN203047169U (en) | 2012-11-23 | 2012-11-23 | DSP (Digital Signal Processor)-based automobile anti-theft device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220629190 CN203047169U (en) | 2012-11-23 | 2012-11-23 | DSP (Digital Signal Processor)-based automobile anti-theft device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203047169U true CN203047169U (en) | 2013-07-10 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220629190 Expired - Fee Related CN203047169U (en) | 2012-11-23 | 2012-11-23 | DSP (Digital Signal Processor)-based automobile anti-theft device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203047169U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103818352A (en) * | 2014-01-20 | 2014-05-28 | 梁飘 | Comprehensive car burglar alarm |
| CN106740684A (en) * | 2016-12-22 | 2017-05-31 | 信利光电股份有限公司 | A kind of vehicle starting method based on iris recognition, device and vehicle |
| CN107038787A (en) * | 2017-06-22 | 2017-08-11 | 合肥展游软件开发有限公司 | A kind of fingerprint lock control system |
| CN107953852A (en) * | 2016-10-14 | 2018-04-24 | 株式会社东海理化电机制作所 | Biological identification simultaneously uses electron key system |
-
2012
- 2012-11-23 CN CN 201220629190 patent/CN203047169U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103818352A (en) * | 2014-01-20 | 2014-05-28 | 梁飘 | Comprehensive car burglar alarm |
| CN107953852A (en) * | 2016-10-14 | 2018-04-24 | 株式会社东海理化电机制作所 | Biological identification simultaneously uses electron key system |
| CN106740684A (en) * | 2016-12-22 | 2017-05-31 | 信利光电股份有限公司 | A kind of vehicle starting method based on iris recognition, device and vehicle |
| CN107038787A (en) * | 2017-06-22 | 2017-08-11 | 合肥展游软件开发有限公司 | A kind of fingerprint lock control system |
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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: 20130710 Termination date: 20131123 |