CN107153814B - Fingerprint module data acquisition device - Google Patents
Fingerprint module data acquisition device Download PDFInfo
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- CN107153814B CN107153814B CN201710232303.XA CN201710232303A CN107153814B CN 107153814 B CN107153814 B CN 107153814B CN 201710232303 A CN201710232303 A CN 201710232303A CN 107153814 B CN107153814 B CN 107153814B
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- module
- power supply
- fingerprint
- fingerprint module
- short circuit
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06V—IMAGE OR VIDEO RECOGNITION OR UNDERSTANDING
- G06V40/00—Recognition of biometric, human-related or animal-related patterns in image or video data
- G06V40/10—Human or animal bodies, e.g. vehicle occupants or pedestrians; Body parts, e.g. hands
- G06V40/12—Fingerprints or palmprints
- G06V40/13—Sensors therefor
- G06V40/1306—Sensors therefor non-optical, e.g. ultrasonic or capacitive sensing
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F13/00—Interconnection of, or transfer of information or other signals between, memories, input/output devices or central processing units
- G06F13/38—Information transfer, e.g. on bus
- G06F13/42—Bus transfer protocol, e.g. handshake; Synchronisation
- G06F13/4204—Bus transfer protocol, e.g. handshake; Synchronisation on a parallel bus
- G06F13/4221—Bus transfer protocol, e.g. handshake; Synchronisation on a parallel bus being an input/output bus, e.g. ISA bus, EISA bus, PCI bus, SCSI bus
Abstract
The invention relates to a fingerprint module data acquisition device, which comprises a module interface, a program-controlled power module, a current acquisition module, an open/short circuit detection module, a processor, a PHY chip, a communication interface and a system power supply, wherein the module interface is respectively connected with the program-controlled power module, the current acquisition module, the open/short circuit detection module and the processor; the PHY chip is respectively connected with the program-controlled power supply module, the current acquisition module, the open-short circuit detection module and the processor; the communication interface is connected with the PHY chip; the system power supply is used for supplying power to each module. The fingerprint module data acquisition device disclosed by the invention is connected with a PC and uses upper-layer software, so that open/short circuit detection, working/standby current detection and fingerprint module image data acquisition can be carried out on a fingerprint module, and the fingerprint module manufacturer can conveniently detect the fingerprint module through the fingerprint module data acquisition device.
Description
Technical Field
The invention relates to the technical field of fingerprint module detection, in particular to a fingerprint module data acquisition device.
Background
In recent years, intelligent products are rapidly developed, the fingerprint identification technology for identity authentication is widely applied, the fingerprint module integrated with the technology also becomes a necessary device on products such as various mobile terminals and payment terminals, and the demand of the fingerprint module is greatly increased.
Along with market to the performance and the required quality of fingerprint module more and more high, the producer is also more and more strict to fingerprint module production test, because the testing arrangement that fingerprint module wafer merchant provided, the function is single, and compatibility is poor, the current detection precision is low, can't satisfy fingerprint module production test requirement.
In view of this, it is necessary to provide a fingerprint module data acquisition device that is compatible with different fingerprint modules for image data acquisition, open/short circuit detection, and high-precision current acquisition, and meets the requirements of fingerprint module production test.
Disclosure of Invention
The invention aims to solve the technical problem of how to provide a fingerprint module data acquisition device which can be compatible with different fingerprint modules for carrying out fingerprint module image data acquisition and is provided with open-short circuit detection and high-precision current acquisition.
The technical scheme for solving the technical problems is as follows:
a fingerprint module data acquisition device comprises a module interface, a program-controlled power module, a current acquisition module, an open-short circuit detection module, a processor, a PHY chip, a communication interface and a system power supply, wherein the module interface is respectively connected with the program-controlled power module, the current acquisition module, the open-short circuit detection module and the processor; the PHY chip is respectively connected with the program-controlled power supply module, the current acquisition module, the open-short circuit detection module and the processor; the communication interface is connected with the PHY chip; the system power supply is used for supplying power to each module.
Compared with the prior art, the invention has the beneficial effects that: the fingerprint module data acquisition device disclosed by the invention is connected with a PC and uses upper-layer software, so that open/short circuit detection, working/standby current detection and fingerprint module image data acquisition can be carried out on a fingerprint module, and the fingerprint module manufacturer can conveniently detect the fingerprint module through the fingerprint module data acquisition device.
On the basis of the technical scheme, the invention can be further improved as follows:
further, the processor includes an EP4CE6F17C8N chip for image decoding and logic control.
The beneficial effect of adopting the further scheme is that: can dispose fingerprint module configuration data that PC transmitted, dispose fingerprint sensor through the SPI bus, decode the fingerprint module image data who receives again to data and relevant information after decoding the image send PHY chip.
Further, programme-controlled power module is including being used for giving 5 way programme-controlled power of fingerprint module power supply.
The beneficial effect of adopting the further scheme is that: the voltage supply device can be used for meeting the voltage supply of an analog power supply AVDD, a module IO power supply DOVDD, a core power supply DVDD and an induction halo power supply TXVDD of different fingerprint modules, and is additionally provided with a wide voltage power supply VPP for different needs.
Further, the PHY chip has a model of FX2LP 68013A.
The beneficial effect of adopting the further scheme is that: the device can realize data transmission with the PC physical layer, is connected with the PC end through the communication interface, transmits the instruction transmitted by the PC end to the corresponding module, and sends the returned data to the PC end.
Further, the communication interface is a USB2.0 interface.
The beneficial effect of adopting the further scheme is that: can make the transmission bandwidth reach 480Mbps, satisfy different fingerprint module data transmission requirements.
Further, include at least one the module interface, the module interface is used for being connected with the fingerprint module.
The beneficial effect of adopting the further scheme is that: promote fingerprint module efficiency of software testing greatly.
Drawings
FIG. 1 is a block diagram of the modules of the present invention;
fig. 2 is a block diagram of a preferred module of the present invention.
In the drawings, the components represented by the respective reference numerals are listed below:
1. module interface, 2, programmable power supply module, 3, current acquisition module, 4, open short circuit detection module, 5, treater, 6, PHY chip, 7, communication interface, 8, system power.
Detailed Description
The principles and features of this invention are described below in conjunction with the following drawings, which are set forth by way of illustration only and are not intended to limit the scope of the invention.
As shown in fig. 1, a fingerprint module data acquisition device includes a module interface 1, a programmable power supply module 2, a current acquisition module 3, an open/short circuit detection module 4, a processor 5, a PHY chip 6, a communication interface 7, and a system power supply 8, where the module interface 1 is connected to the programmable power supply module 2, the current acquisition module 3, the open/short circuit detection module 4, and the processor 5, respectively; the PHY chip 6 is respectively connected with the programmable power supply module 2, the current acquisition module 3, the open-short circuit detection module 4 and the processor 5; the communication interface 7 is connected with the PHY chip 6; the system power supply 8 is used for supplying power to each module. The fingerprint module data acquisition device disclosed by the invention is connected with a PC and uses upper-layer software, so that open/short circuit detection, working/standby current detection and fingerprint module image data acquisition can be carried out on a fingerprint module, and the fingerprint module manufacturer can conveniently detect the fingerprint module through the fingerprint module data acquisition device.
As shown in fig. 2, in particular, the processor 5 comprises an FPGA EP4CE6F17C8N chip for image decoding and logic control. The program-controlled power supply module 2 comprises 5 paths of program-controlled power supplies for supplying power to the fingerprint module. The PHY chip 6 has a model number FX2LP 68013A. The communication interface 7 is a USB2.0 interface. The system power supply 8 is a USB2.0 power supply system power supply. And, the fingerprint module collection system of the invention includes one at least module interface 1, module interface 1 is used for being connected with the fingerprint module.
In a specific embodiment, after the fingerprint module is connected to the module interface 1, the fingerprint module is supplied with power through the programmable power supply module 2, the programmable power supply is composed of a 5-channel digital adjustable power supply with high precision and low noise, and is used for meeting the voltage supply of an analog power supply AVDD, a module IO power supply DOVDD, a core power supply DVDD and an induction halo power supply TXVDD of different fingerprint modules, and adding a wide voltage power supply VPP for different needs.
Open short circuit detection module 4, through detecting the inside diode of fingerprint module pin with the conduction voltage of power and ground, judge the open short circuit of pin, avoid the fingerprint module to have short/open a way or virtual short/open a way, cause the module directly to destroy after the camera circular telegram.
The FPGAE P4CE6F17C8N processor 5 configures the fingerprint module configuration data transmitted from the PC through the SPI bus, decodes the received fingerprint module image data, and sends the decoded data and related information to the PHY chip.
The PHY chip adopts FX2LP series 68013A peripheral controller, which is a device for realizing data transmission with PC physical layer, and is connected with PC end through communication interface, transmitting the instruction transmitted by PC end to corresponding module, and sending the returned data to PC end. The communication interface uses a USB2.0 interface, the transmission bandwidth reaches 480Mbps, and the data transmission requirements of different fingerprint modules are met.
The system power supply adopts USB2.0 power supply, realizes the functions of voltage reduction/boost, protection and voltage distribution, and supplies power to the whole device.
The fingerprint module testing device is connected with a PC (personal computer) by using a USB (universal serial bus) 2.0 connecting wire, and can finish open/short circuit detection, working/standby current acquisition and fingerprint module image data acquisition on a fingerprint module connected on a module interface 1 by matching with upper software. In some embodiments, the module interface 1 is designed to be multiple, so that the fingerprint module testing efficiency is greatly improved.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.
Claims (4)
1. A fingerprint module data acquisition device is characterized by comprising a module interface, a program-controlled power module, a current acquisition module, an open/short circuit detection module, a processor, a PHY chip, a communication interface and a system power supply, wherein the module interface is respectively connected with the program-controlled power module, the current acquisition module, the open/short circuit detection module and the processor; the PHY chip is respectively connected with the program-controlled power supply module, the current acquisition module, the open-short circuit detection module and the processor; the communication interface is connected with the PHY chip; the system power supply is used for supplying power to each module; the program control power supply module consists of a 5-channel digital adjustable power supply with high precision and low noise, and is used for meeting the voltage supply of an analog power supply AVDD, a module IO power supply DOVDD, a kernel power supply DVDD and an induction halo power supply TXVDD of different fingerprint modules and adding a wide voltage power supply VPP for different needs; the open-short circuit detection module judges the open-short circuit of the pin by detecting the conduction voltage of the diode in the pin of the fingerprint module with the power supply and the ground; the processor comprises an FPGA EP4CE6F17C8N chip used for image decoding and logic control, the FPGAE P4CE6F17C8N processor configures fingerprint module configuration data transmitted by a PC (personal computer) through an SPI (serial peripheral interface) bus, decodes received fingerprint module image data, and sends the data after image decoding and related information to the PHY chip.
2. The fingerprint module data collection device of claim 1, wherein the PHY chip is FX2LP 68013A.
3. The fingerprint module data collection device of claim 1, wherein the communication interface is a USB2.0 interface.
4. The fingerprint module data collection device of any one of claims 1 to 3, comprising at least one of the module interfaces for interfacing with a fingerprint module.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710232303.XA CN107153814B (en) | 2017-04-11 | 2017-04-11 | Fingerprint module data acquisition device |
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| CN201710232303.XA CN107153814B (en) | 2017-04-11 | 2017-04-11 | Fingerprint module data acquisition device |
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| CN107153814A CN107153814A (en) | 2017-09-12 |
| CN107153814B true CN107153814B (en) | 2020-12-08 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110119752A (en) * | 2018-02-06 | 2019-08-13 | 南昌欧菲生物识别技术有限公司 | The test macro and test method of fingerprint recognition mould group |
| CN109739796A (en) * | 2018-12-29 | 2019-05-10 | 上海思立微电子科技有限公司 | Fingerprint recognition component, terminal device, image data transfer method and device |
| CN113933638A (en) * | 2021-11-01 | 2022-01-14 | 豪威科技(北京)股份有限公司 | Test equipment of fingerprint image module |
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| US9197736B2 (en) * | 2009-12-31 | 2015-11-24 | Digimarc Corporation | Intuitive computing methods and systems |
| CN105160368A (en) * | 2015-11-06 | 2015-12-16 | 邱钊 | Examination identity authentication system applied to big data voiceprint recognition |
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|---|---|---|---|---|
| CN101534330A (en) * | 2008-10-15 | 2009-09-16 | 闻泰集团有限公司 | Electrifying circuit on mobile terminal camera |
| CN102063009A (en) * | 2009-11-13 | 2011-05-18 | 蒋思远 | Camera testing system |
| CN201600404U (en) * | 2009-11-18 | 2010-10-06 | 深圳市度信科技有限公司 | Multifunctional camera test plate |
| CN102608512A (en) * | 2012-04-11 | 2012-07-25 | 上海电力学院 | Method for on-line detecting faults of photovoltaic cells in solar photovoltaic power station on line |
| WO2014160186A1 (en) * | 2013-03-13 | 2014-10-02 | Bosch Automotive Service Solutions Llc | Vehicle measurement apparatus having a system-on-a-chip device, a sensor and a wireless adapter |
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