CN202463759U - Fingerprint identification antitheft system for automobile based on DSP (digital signal processor) and FPGA (field programmable gate array) - Google Patents
Fingerprint identification antitheft system for automobile based on DSP (digital signal processor) and FPGA (field programmable gate array) Download PDFInfo
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- CN202463759U CN202463759U CN 201220058174 CN201220058174U CN202463759U CN 202463759 U CN202463759 U CN 202463759U CN 201220058174 CN201220058174 CN 201220058174 CN 201220058174 U CN201220058174 U CN 201220058174U CN 202463759 U CN202463759 U CN 202463759U
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Abstract
The utility model provides a fingerprint identification antitheft system for an automobile based on a DSP (digital signal processor) and an FPGA (field programmable gate array). The fingerprint identification antitheft system comprises the DSP, an FPGA processor, a VFDA02 fingerprint identification module, a FLASH, an SDRAM (synchronous dynamic random access memory), a display module, a key module, an automobile door control switch, an ignition control circuit, an Ethernet interface, a power module and an acoustic and optical alarming module, the FPGA processor, the FLASH, the SDRAM, the display module, a key module, the automobile door control switch, the ignition control circuit, the Ethernet interface, the power module and the acoustic and optical alarming module are connected with the DSP, and the FPGA processor is connected with the VFDA02 fingerprint identification module. A hardware platform of a cooperative processing structure of the floating point DSP and the FPGA processor is built, the characteristic of high calculation precision of the DSP and the characteristic of parallel processing of the FPGA are utilized sufficiently, the DSP and the FPGA processor jointly process a matching algorithm, the processing speed of the fingerprint identification system is increased, and accordingly the work performance of the integral fingerprint identification antitheft system for the automobile based on the DSP and the FPGA is improved.
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 FPGA 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.
The embedded Automated Fingerprint Identification System that present automobile finger-print identification anti-theft column lock adopts adopts monolithic dsp processor or MIPS treater to accomplish algorithm more; Because dsp processor or MIPS treater can only be carried out according to procedure order; In the fingerprint matching process, can only mate one by one with the fingerprint in the whole storehouse, thus this type systematic handle big fingerprint base at present match time quite long.In order to overcome this shortcoming; This paper has made up the hardware platform of float-point DSP processor and FPGA treater associated treatment framework; Make full use of accuracy rate and the characteristics of FPGA treater concurrent processing of dsp processor on calculating, handle matching algorithm jointly by dsp processor and FPGA treater.Improved the processing speed of fingerprint recognition system greatly.
The utility model content
The purpose of the utility model is the deficiency to prior art, only provides with the fast a kind of fingerprint recognition automotive theft proof system based on DSP and FPGA of fingerprint recognition processing speed.
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 FPGA is characterized in that comprising:
FPGA treater: adopt chip EPlC6Q240C8, realize function, IMAQ controllable function and the system bus handoff functionality of address generator;
Dsp processor: the core of system, mainly to control, mathematical operation and the communication etc. of peripheral components, accomplish fingerprint image processing and coupling, and peripheral components is controlled, accomplish the communication that is connected with ethernet;
VFDA02 fingerprint identification module: be used to gather information in 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;
SDRAM memory device: operation system program, file system and the temporary data of coming of gathering;
Display module: show job information;
Key-press module: mode of operation is set;
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;
Power module: for total system provides stable power;
Sound and light alarm module: send alerting signal;
Said FPGA treater, FLASH memory device, SDRAM memory device, display module, key-press module, control door contact interrupter, ignition control circuit, Ethernet interface, power module, sound and light alarm module all are connected with dsp processor, and said VFDA02 fingerprint identification module is connected with the FPGA treater.
Said dsp processor adopts the TMS320VC54X chip.
Said FLASH memory device adopts the SSF39VFl60 chip.
Described SDRAM memory device adopts the HY57V641620AIT chip.
The utlity model has following beneficial effect:
The utility model has made up the hardware platform of float-point DSP processor and FPGA treater associated treatment framework; Make full use of accuracy rate and the characteristics of FPGA treater concurrent processing of dsp processor on calculating, handle matching algorithm jointly by dsp processor and FPGA treater.Improve the processing speed of fingerprint recognition system greatly, thereby improved the serviceability of the fingerprint recognition automotive theft proof system of whole DSP and FPGA.
Description of drawings
Fig. 1 is the system construction drawing of the utility model.
The specific embodiment
A kind of fingerprint recognition automotive theft proof system based on DSP and FPGA comprises:
FPGA treater: adopt chip EPlC6Q240C8, realize function, IMAQ controllable function and the system bus handoff functionality of address generator;
Dsp processor: the core of system, mainly to control, mathematical operation and the communication etc. of peripheral components, accomplish fingerprint image processing and coupling, and peripheral components is controlled, accomplish the communication that is connected with ethernet;
The VFDA02 fingerprint identification module: be used to gather information in fingerprint, fingerprint sensor is mainly accomplished the collection worker of fingerprint, and fingerprint sensor is mainly accomplished the collecting work of fingerprint.Native system adopts the VFDA02 fingerprint sensor.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 is 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.
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.
Display module: show job information.
Key-press module: mode of operation is set.
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;
Power module: for total system provides stable power;
Sound and light alarm module: send alerting signal;
Said FPGA treater, FLASH memory device, SDRAM memory device, display module, key-press module, control door contact interrupter, ignition control circuit, Ethernet interface, power module, sound and light alarm module all are connected with dsp processor, and said VFDA02 fingerprint identification module is connected with the FPGA treater.
Said dsp processor adopts the TMS320VC54X chip.
Said FLASH memory device adopts the SSF39VFl60 chip.
Described SDRAM memory device adopts the HY57V641620AIT chip.
Native system has following function
(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.
Claims (4)
1. fingerprint recognition automotive theft proof system based on DSP and FPGA is characterized in that comprising:
FPGA treater: adopt chip EPlC6Q240C8, realize function, IMAQ controllable function and the system bus handoff functionality of address generator;
Dsp processor: the core of system, mainly to control, mathematical operation and the communication etc. of peripheral components, accomplish fingerprint image processing and coupling, and peripheral components is controlled, accomplish the communication that is connected with ethernet;
VFDA02 fingerprint identification module: be used to gather information in 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;
SDRAM memory device: operation system program, file system and the temporary data of coming of gathering;
Display module: show job information;
Key-press module: mode of operation is set;
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;
Power module: for total system provides stable power;
Sound and light alarm module: send alerting signal;
Said FPGA treater, FLASH memory device, SDRAM memory device, display module, key-press module, control door contact interrupter, ignition control circuit, Ethernet interface, power module, sound and light alarm module all are connected with dsp processor, and said VFDA02 fingerprint identification module is connected with the FPGA treater.
2. a kind of fingerprint recognition automotive theft proof system based on DSP and FPGA according to claim 1 is characterized in that comprising: said dsp processor adopts the TMS320VC54X chip.
3. a kind of fingerprint recognition automotive theft proof system based on DSP and FPGA according to claim 1 is characterized in that comprising: said FLASH memory device adopts the SSF39VFl60 chip.
4. a kind of fingerprint recognition automotive theft proof system based on DSP and FPGA according to claim 1 is characterized in that comprising: described SDRAM memory device adopts the HY57V641620AIT chip.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220058174 CN202463759U (en) | 2012-02-22 | 2012-02-22 | Fingerprint identification antitheft system for automobile based on DSP (digital signal processor) and FPGA (field programmable gate array) |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220058174 CN202463759U (en) | 2012-02-22 | 2012-02-22 | Fingerprint identification antitheft system for automobile based on DSP (digital signal processor) and FPGA (field programmable gate array) |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202463759U true CN202463759U (en) | 2012-10-03 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220058174 Expired - Fee Related CN202463759U (en) | 2012-02-22 | 2012-02-22 | Fingerprint identification antitheft system for automobile based on DSP (digital signal processor) and FPGA (field programmable gate array) |
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| Country | Link |
|---|---|
| CN (1) | CN202463759U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103318136A (en) * | 2013-07-05 | 2013-09-25 | 无锡商业职业技术学院 | Automobile anti-theft device |
| CN104290754A (en) * | 2013-07-16 | 2015-01-21 | 通用汽车环球科技运作有限责任公司 | Driver profile control system for motor vehicles |
-
2012
- 2012-02-22 CN CN 201220058174 patent/CN202463759U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103318136A (en) * | 2013-07-05 | 2013-09-25 | 无锡商业职业技术学院 | Automobile anti-theft device |
| CN104290754A (en) * | 2013-07-16 | 2015-01-21 | 通用汽车环球科技运作有限责任公司 | Driver profile control system for motor vehicles |
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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: 20121003 Termination date: 20130222 |