CN202448941U - Digital signal processor (DSP) and complex programmable logic device (CPLD)-based fingerprint identification anti-theft system for automobile - Google Patents
Digital signal processor (DSP) and complex programmable logic device (CPLD)-based fingerprint identification anti-theft system for automobile Download PDFInfo
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- CN202448941U CN202448941U CN2012200581491U CN201220058149U CN202448941U CN 202448941 U CN202448941 U CN 202448941U CN 2012200581491 U CN2012200581491 U CN 2012200581491U CN 201220058149 U CN201220058149 U CN 201220058149U CN 202448941 U CN202448941 U CN 202448941U
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Abstract
The utility model provides a digital signal processor (DSP) and complex programmable logic device (CPLD)-based fingerprint identification anti-theft system for an automobile. The fingerprint identification anti-theft system comprises a DSP processor, a CPLD logic control module, a static random access memory (SRAM) memory, a flash memory and a fingerprint sensor which are connected with the DSP processor and a keyboard, a buzzing alarm, a vehicle door control circuit, an ignition control circuit, an Ethernet interface, a liquid crystal display (LCD) display and an SRAM memory which are connected with the CPLD logic control module. According to the fingerprint identification anti-theft system, the automobile, the switching-in and switching-off of an automobile igniter and the opening and closing of the automobile door are controlled by fingerprint identification, so that the problem that the conventional mechanical lock is easy to pick is solved; and in actual life, drivers who use the conventional mechanical lock leave behind keys or leave the keys in the automobile easily, so the problem is solved by a mode of the fingerprint identification.
Description
Technical field
The utility model relates to technical field of automotive electronics, and a kind of fingerprint recognition automotive theft proof system based on DSP and CPLD is provided.
Background technology
Along with rapid economy development, automobile is more and more, and the thing followed is the automobile burglar problem.Traditional automobile door lock adopts mechanical type mostly; Pried open easily, safety factor is low, has uniqueness for raising automobile burglar ability is a kind of; And can not lose; Safety factor is high, fingerprint identification technology in the automotive safety antitheft, be applied, the fingerprint alarms and security systems for automobiles that therefore adopts fingerprint to start automobile arises at the historic moment.
Summary of the invention
The purpose of the utility model is to provide a kind of various information in the driving process of can writing down
OnePlant drive recorder with positioning function
The utility model is for realizing that above-mentioned purpose adopts following technical scheme:
A kind of fingerprint recognition automotive theft proof system based on DSP and CPLD is characterized in that comprising:
Dsp processor: DSP is the core of native system, mainly to control, mathematical operation and the communication etc. of peripheral components, accomplishes fingerprint image processing and coupling, and peripheral components is controlled, and accomplishes the communication that is connected with ethernet;
Fingerprint sensor: fingerprint sensor is mainly accomplished the collection worker of fingerprint;
FLASH memory device: be used to store start-up routine, start-up parameter, operating system, file system and hardware drive program thereof and application code;
SRAM memory device: operation system program, file system and the temporary data of coming of gathering;
CPLD Logic control module:, carry out address decoding and logic control for interface and other peripheral circuit control device;
Power management module: for system provides power supply;
Keysheet module: be used for the working state of system setting operation;
Buzzer siren: send alerting signal;
Door control circuit: the switch of control car door;
Ignition control circuit: the break-make of control ignition circuit;
Ethernet interface: be used for communicating by letter with PC;
LCD display: show the fingerprint image collected and the result after comparing;
Said CPLD Logic control module, SRAM memory device, FLASH memory device, fingerprint sensor all are connected with dsp processor;
Said keyboard, buzzer siren, door control circuit, ignition control circuit, Ethernet interface, LCD display, SEAM memory device all are connected with the CPLD Logic control module.
Said dsp processor adopts the TMS320VC54X chip.
Said fingerprint sensor adopts the MBF200 model.
Said FLASH memory device adopts the SSF39VFl60 chip.
Described SDRAM memory device adopts the HY57V641620AIT chip.
Said CPLD Logic control module adopts the XC9572 chip.
The utlity model has following beneficial effect:
The utility model adopts fingerprint recognition Control of Automobile and the break-make of car firing unit and the switch of arrangements for automotive doors; Solved the problem of traditional mechanical lock in order to be prized; And in real life; Adopt the driver of traditional mechanical lock also to exist and leave behind key, perhaps with the problem of key lock in car, and the fingerprint recognition mode has solved this problem.
Description of drawings
Fig. 1 is the system block diagram of the utility model.
The specific embodiment
A kind of fingerprint recognition automotive theft proof system based on DSP and CPLD comprises:
Dsp processor:
DSP is the core of native system, mainly to control, mathematical operation and the communication etc. of peripheral components, accomplishes fingerprint image processing and coupling, and peripheral components is controlled, and accomplishes the communication that is connected with ethernet;
Fingerprint sensor:
Fingerprint sensor is mainly accomplished the collection worker of fingerprint, and fingerprint sensor is mainly accomplished the collecting work of fingerprint.This paper adopts the ultrathin silicon semiconductor direct contact type fingerprint sensor MBF200 that is produced by printer Fujisu.Sensor is gathered fingerprint image under the control of DSP, and fingerprint image is carried out the digital quantization of 256 gray levels, and the fingerprint image after will quantizing passes in the SRAM SRAM.
The FLASH memory device:
Be used to store start-up routine, start-up parameter, operating system, file system and hardware drive program thereof and application code; Its storage speed is slower than RAM, and under power-down conditions, it can continue to preserve data and the program in the FLASH sheet.
The SDRAM memory device:
Sdram interface is main operation system as program, file system and the temporary data of coming of gathering in this system.His access speed is than much fast in Flash, and unit space memory capacity is big.
CPLD Logic control module:, carry out address decoding and logic control for interface and other peripheral circuit control device.
Buzzer siren:
Send alerting signal.
Door control circuit:
Control the switch of car door, be connected the switch of an empty car door with relay.
Ignition control circuit: be connected with relay, the control relay mode of operation is realized the break-make control of ignition circuit.
Ethernet interface: be used for communicating by letter with PC;
LCD display: show the fingerprint image collected and the result after comparing;
Keysheet module:
Be used for the working state of system setting operation.
Power management module:
For system provides power supply.
Clock module:
In the process of total system, need real time recording and storing various information, this just requires this system that the real-time clock producer must be arranged.This module plays crucial effects to real-time, accuracy and the reliable provisional capital of system.
Said CPLD Logic control module, SRAM memory device, FLASH memory device, fingerprint sensor all are connected with dsp processor;
Said keyboard, buzzer siren, door control circuit, ignition control circuit, Ethernet interface, LCD display, SEAM memory device all are connected with the CPLD Logic control module.
Said dsp processor adopts the TMS320VC54X chip.
Said fingerprint sensor adopts the MBF200 model.
Said FLASH memory device adopts the SSF39VFl60 chip.
Described SDRAM memory device adopts the HY57V641620AIT chip.
Said CPLD Logic control module adopts the XC9572 chip.
(1) fingerprint opens the door
When the car owner need open car door; Press as long as will point on the fingerprint capturer on the Door Lock; System gets access to car owner's fingerprint image automatically and matees with fingerprint in the depositing fingerprint database, if fingerprint comparison is correct, is identified as validated user; System's freeing vehicle anti-theft state sends the instruction of opening the door; If the fingerprint comparison mal, then further operation of system's refusal, the oil supply circuit that cuts off vehicle simultaneously carries out white lock, the concurrent visual alarm of speaking.
(2) fingerprint igniting.
When the car owner need start vehicle; Press as long as will point on the vehicle launch fingerprint acquisition instrument; System gets access to car owner's fingerprint image automatically, and matees with fingerprint in the fingerprint database, if fingerprint comparison correctly then is a validated user; System's freeing vehicle anti-theft state is connected IC Ignition Control circuit start vehicle; If the comparison fingerprint is not a validated user, then the oil supply circuit of system's cut-out vehicle carries out self-locking, and sends the acousto-optic alarm control signal.
(3) sound and light alarm antitheft
System is when carrying out the fingerprint identification to the user, if coupling is made mistakes, system thinks that the disabled user is operating vehicle, and then vehicle control of fuel supply circuit breaks off in system, sends the sound and light alarm signal simultaneously, improves system's theftproof performance.
(4) password emergency starting
When abnormal condition (being scratched etc. like finger) appear in user's finger, when fingerprint capturer can't collect finger print information, perhaps because of power shortage fingerprint identification module can't normal operation the time, available password came the emergency starting vehicle.Be to guarantee security of system, password only buy car in installments main I (handler) use, simultaneously the car owner only in the fingerprint identification through revising emergency cryptosystem under the situation.For preventing that others from malice souning out password, when importing the password mistakes continuous three times, system forbids inputing password, can input password after one hour, thereby reduces the possibility that password is decrypted.
The utility model adopts fingerprint recognition Control of Automobile and the break-make of car firing unit and the switch of arrangements for automotive doors; Solved the problem of traditional mechanical lock in order to be prized; And in real life; Adopt the driver of traditional mechanical lock also to exist and leave behind key, perhaps with the problem of key lock in car, and the fingerprint recognition mode has solved this problem.
Claims (6)
1. fingerprint recognition automotive theft proof system based on DSP and CPLD is characterized in that comprising:
Dsp processor: DSP is the core of native system, mainly to control, mathematical operation and the communication of peripheral components, accomplishes fingerprint image processing and coupling, and peripheral components is controlled, and accomplishes the communication that is connected with ethernet;
Fingerprint sensor: fingerprint sensor is mainly accomplished the collection worker of fingerprint;
FLASH memory device: be used to store start-up routine, start-up parameter, operating system, file system and hardware drive program thereof and application code;
SRAM memory device: operation system program, file system and the temporary data of coming of gathering;
CPLD Logic control module:, carry out address decoding and logic control for interface and other peripheral circuit control device;
Power management module: for system provides power supply;
Keysheet module: be used for the working state of system setting operation;
Buzzer siren: send alerting signal;
Door control circuit: the switch of control car door;
Ignition control circuit: the break-make of control ignition circuit;
Ethernet interface: be used for communicating by letter with PC;
LCD display: show the fingerprint image collected and the result after comparing;
Said CPLD Logic control module, SRAM memory device, FLASH memory device, fingerprint sensor all are connected with dsp processor;
Said keyboard, buzzer siren, door control circuit, ignition control circuit, Ethernet interface, LCD display, SEAM memory device all are connected with the CPLD Logic control module.
2. a kind of fingerprint recognition automotive theft proof system system based on DSP and CPLD according to claim 1, it is characterized in that: said dsp processor adopts the TMS320VC54X chip.
3. a kind of fingerprint recognition automotive theft proof system based on DSP and CPLD according to claim 1 is characterized in that: said fingerprint sensor adopts the MBF200 model.
4. a kind of fingerprint recognition automotive theft proof system based on DSP and CPLD according to claim 1 is characterized in that: said FLASH memory device adopts the SSF39VFl60 chip.
5. a kind of fingerprint recognition automotive theft proof system based on DSP and CPLD according to claim 1 is characterized in that: described SDRAM memory device adopts the HY57V641620AIT chip.
6. a kind of fingerprint recognition automotive theft proof system based on DSP and CPLD according to claim 1 is characterized in that: said CPLD Logic control module adopts the XC9572 chip.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200581491U CN202448941U (en) | 2012-02-22 | 2012-02-22 | Digital signal processor (DSP) and complex programmable logic device (CPLD)-based fingerprint identification anti-theft system for automobile |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200581491U CN202448941U (en) | 2012-02-22 | 2012-02-22 | Digital signal processor (DSP) and complex programmable logic device (CPLD)-based fingerprint identification anti-theft system for automobile |
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| Publication Number | Publication Date |
|---|---|
| CN202448941U true CN202448941U (en) | 2012-09-26 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012200581491U Expired - Fee Related CN202448941U (en) | 2012-02-22 | 2012-02-22 | Digital signal processor (DSP) and complex programmable logic device (CPLD)-based fingerprint identification anti-theft system for automobile |
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| Country | Link |
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| CN (1) | CN202448941U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103818352A (en) * | 2014-01-20 | 2014-05-28 | 梁飘 | Comprehensive car burglar alarm |
| CN104616372A (en) * | 2014-12-01 | 2015-05-13 | 南京泰锐斯通信科技有限公司 | Method and apparatus for controlling automobile lock |
| CN104859587A (en) * | 2015-05-22 | 2015-08-26 | 陈元喜 | Automobile antitheft display with starting verification function |
-
2012
- 2012-02-22 CN CN2012200581491U patent/CN202448941U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103818352A (en) * | 2014-01-20 | 2014-05-28 | 梁飘 | Comprehensive car burglar alarm |
| CN104616372A (en) * | 2014-12-01 | 2015-05-13 | 南京泰锐斯通信科技有限公司 | Method and apparatus for controlling automobile lock |
| CN104859587A (en) * | 2015-05-22 | 2015-08-26 | 陈元喜 | Automobile antitheft display with starting verification function |
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| 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: 20120926 Termination date: 20130222 |