Application example of networked fingerprint attendance system in central blood station
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Fingerprint attendance requirements of central blood station
In order to strengthen management, the central blood station hopes to use fingerprint recognition technology for employee attendance in its office area and mobile blood collection carts;
Attendance points are scattered: in the whole city or even in other places;
Require attendance data to be automatically uploaded and summarized in real time;
Automatic backup of personnel fingerprint data;
The attendance machine has a capacity of 300 people;
Attendance machine monitoring and management;
Real network attendance:
There is no need to re-register and enter fingerprints when transferring personnel;
Hope to check attendance on any attendance machine on the network without restriction
Other network application requirements, such as VPN private network data transmission, U disk data transmission, etc.
Fingerprint Time Attendance System Analysis
Among the many biometric technologies used for identity verification, fingerprint recognition technology is currently the most convenient, reliable, non-invasive and inexpensive solution. Fingerprint recognition has a long history as an identification technology. This technology analyzes the global and local features of the fingerprint, and the feature values extracted from the fingerprint can be very detailed in order to reliably confirm the identity of a person through the fingerprint. On average, each fingerprint has several unique and measurable feature points, and each feature point has about seven features. Our ten fingers produce at least 4900 independently measurable features-this is enough to confirm whether fingerprint recognition is A more reliable way of identification.
Fingerprints are unique features of the human body, and their complexity is sufficient to provide sufficient features for identification; if we want to increase reliability, we only need to register more fingerprints and identify more fingers, up to ten , And each fingerprint is unique; scanning fingerprints is fast and easy to use; when reading fingerprints, the user must touch the fingerprint collection head with each other, and direct contact with the fingerprint collection head is the most important way to read the biological characteristics of the human body. Reliable method. This is also one of the main reasons that fingerprint recognition technology can occupy most of the market.
The estimated number of employees of the central blood station is: 3-5 hundred people. There are 1 attendance point in the office area, 1 fixed blood collection point in Huaqiangbei, 1 fixed attendance point in Nanshan District, and 1 mobile attendance point, with attendance numbers. About 400 people, that is, this system solution needs to complete the daily fingerprint attendance management of 3-5 hundred employees.
Fingerprint Time Attendance Network System Architecture
Central blood station network connection: VPN tunnel
The system adopts the HTTP protocol, and the time attendance machine actively initiates the server connection and data transmission request:
Support complex network access methods: such as ADSL/ISDN/remote Modem dial-up access, ISP dedicated line, etc.
Supports widely used Web access methods: such as routing, NAT, Http proxy, etc.
The network firewall usually opens the HTTP protocol port for Web access, so that the access from the attendance machine to the server is almost unrestricted
Central blood station data transmission: attendance data upload
After employee attendance, attendance data is automatically uploaded to the server
Newly entered employee fingerprints are automatically backed up to the server
It can be set to transmit in the following ways:
1. Upload to the server in real time;
2. The time attendance machine checks and transmits new data at intervals (such as 5 minutes);
3. Set a few times to check regularly and transmit new data;
Central blood station data transmission:
Only new data is transmitted, the data that has been transmitted will not be automatically transmitted, but it can be retransmitted from the server
If the network is temporarily unable to connect normally, the data will be automatically retransmitted after the connection is restored
Data is usually packaged together and sent in batches, thereby reducing network connection overhead
Data that fails to be transmitted due to network problems will be retransmitted until it succeeds
Data uploading and downloading does not affect the normal attendance usage. Only when a large number of personnel fingerprints are sent to the attendance machine through the server, the attendance speed will be slightly slowed down
Central blood station data transmission security: encryption and compression
Encryption and compression of data transmission is an option, and they are carried out at the same time. Encryption makes data transmission more secure, and compression makes network communication bandwidth occupancy greatly reduced.
Usually, 20K attendance record data can be compressed to 6K for transmission on the network
Security architecture
The server side of the central blood station: flexible deployment
Intranet server
Server on dedicated line network
VPN node
Internet:
Rent ISP/IDC server/virtual server
Establish a hosting server in the server room of China Telecom and Netcom
Directly rent the central control server
Server side: Support multiple databases to access data
Oracle
MySQL
PostgreSQL
SQLite
Scalable to support other databases
Server side: real-time export and write of attendance data
Customers usually have their own attendance, personnel, and salary management systems. Through configuration and simple customization, they can write the attendance data collected by the server into the database of these existing systems in real time and automatically, including the reprocessing of the data proposed by the user. , Such as 5 late or early withdrawals into 1 absenteeism, so as to achieve seamless integration between systems.
Central blood station: perfect remote attendance machine management function
At the central blood station, remote control and parameter setting of the attendance machine can be performed
Fingerprint Time Attendance Machine Automatically Upgrade Firmware
Automatic maintenance of attendance record storage: automatically clear the previous 10,000 records when it reaches 50,000
Fingerprint time attendance at each blood sampling point: automatic mutual backup of fingerprints
Users and fingerprints registered on one machine can be automatically transferred to another machine for backup, so that when there are multiple attendance machines in one place, employees only need to register fingerprints on one of them and compare them on the other. right;
Multiple machines in one attendance point can back up personnel data to each other, which not only improves the efficiency of use, but also reduces the risk of failing to attendance when one of them is accidentally damaged.
Easy to use: attendance can be checked on any attendance machine on the network
It can be configured as needed:
When checking attendance on your default attendance machine, just press your fingerprint directly;
When checking attendance on other attendance machines, first input your own ID number, and then press your fingerprint;
On the machine equipped with card reading function, the way of inputting the number can be replaced by swiping card (ID card/Mifare card/HID card).
This is also an ideal solution for the attendance machine to support large-scale personnel (tens of thousands)
Customer application simplification: simplify the application development process
The system is easy to integrate, and personnel and attendance data can be easily integrated into the existing system with little customization or self-setting
No need to understand and use the complex offline SDK, you can use and integrate directly without programming
Flexible database interface can connect to almost all types of databases
The system is simple and quick to use
Flexible system application: flexible expansion according to application
Based on the modular B/S structure, it is easy to expand according to actual applications, such as:
Connect the relevant modules of attendance management to form a fingerprint attendance management system;
Connect the relevant modules of conference management to form a fingerprint conference sign-in system;
Attach the relevant modules of the candidate management to constitute the fingerprint candidate’s identity registration and identification system;
Connect the relevant modules of patrol management to form a fingerprint patrol management system;
etc
Product parameters: X938 ZEM300U disk offline attendance machine
X938 fingerprint time attendance machine adopts ZEM300 multimedia Linux platform with ZK6001 parallel high-speed chip with independent intellectual property rights of Zhongkong Technology. The recognition algorithm adopts the latest hybrid engine Biokey8.0 of Zhongkong Technology. The recognition speed is increased by more than 5 times compared with the original version. , 2200 fingerprints, 100,000 records, centrally controlled fingerprint meter. There is no need to connect to the computer in real time. It is specially designed for fingerprint attendance of enterprises and institutions that need to be used offline from a long distance. At the same time, it is also suitable for various occasions that only require accurate identification. The fingerprint attendance machine communicates with the computer through RS232, RS485, standard TCP/IP, U disk and other methods, and can be used in multiple networks; suitable for office or factory attendance.
characteristic:
The ZEM300 platform recognition algorithm, which uses the ZK6001 parallel high-speed chip of Supcon Technology’s independent intellectual property rights, uses Supcon Technology’s latest high-speed hybrid recognition engine Biokey8.0, which has significantly improved system reliability, accuracy, and recognition speed. Based on the motherboard Embedded development system (EDK) is a parallel high-speed processing embedded Linux offline fingerprint product development platform, TCP/IP is the standard interface, stable and reliable operation, optical collector “enhancement film”, improve image quality, accept dry and wet Finger. Able to achieve sleep mode function, software control shutdown, set timing boot support 360-degree recognition of fingers, easy to use, good performance, motherboard design, long-term 24-hour uninterrupted operation, with voltage monitoring, programmable watchdog timer function, customers do not need to add anything The single-chip microcomputer directly uses the EDK motherboard to easily customize it to meet the needs of industry customers and enhance competitiveness
technical parameter:
Fingerprint capacity: 2200 pieces
Recording capacity: 80,000 records
Algorithm: Internationally famous Biokey 8.0 version dual-engine fingerprint recognition algorithm
Hardware platform: ZEM100
Communication method: RS232, RS485, TCP/IP
Attendance speed: ＜=2 seconds False judgment rate: ＜=0.0001%
Disapproval rate: ＜=1% LED: red, green
LCD: 128×64 blue backlit Collector: central fingerprint scanner
Operating temperature: 0℃-45℃ Operating humidity: 20%-80%
Language selection: Simplified Chinese, Traditional Chinese, English
Dimensions: 190 (length) * 140 (width) * 57 (height) mm
Product parameters: X628 offline attendance machine
X628 (TCP/IP) is a network-based high-performance dual-recognition engine offline fingerprint attendance machine with an international appearance. It was originally a mainstream model exported by Supcon Technology, and Supcon Technology decided to introduce it in August 2005 to promote the development of the domestic market in China. Domestic sales in China. The machine has good recognition performance according to different fingerprint distributions (old people, children, men, women, northerners, southerners, broken fingerprints, etc.), with more than 40 million usage records and a history of use in more than 30 countries around the world. It can store 1500-3000 fingerprints and 30,000-120000 records without real-time connection to the computer. It is specially designed for fingerprint attendance of enterprises and institutions that need to be used offline for long distances. At the same time, it is also suitable for all kinds of fingerprints that only need to be accurate. Various occasions for identification. The fingerprint attendance machine communicates with the computer through RS232 or RS485; it is suitable for enterprises with 1000-2000 employees. Using the machine’s own TCP/IP interface, it is easy to realize distributed and centralized attendance and human resources solutions in the local area network.
characteristic:
The Biokey VX8.0 algorithm has good recognition performance according to different fingerprint distributions (old people, children, men, women, northerners, southerners, broken fingerprints, etc.)
Built-in powerful embedded fingerprint recognition module (ZEM100), it is easy to integrate into various systems.
Support finger 360-degree recognition, easy to use and good performance
Optical collector "enhanced film", improves image quality, accepts dry and wet fingers.
CMOS automatic exposure and intelligent compensation to enhance image quality
Grid initialization corrects image distortion to ensure the consistency of fingerprint recognition
The attendance name is displayed in Chinese characters to ensure that the attendance data is accurate and reliable
technical parameter:
Fingerprint capacity: 2,200 pieces Recording capacity: 80,000 pieces
Algorithm: Internationally famous Biokey 8.0 version dual-engine fingerprint recognition algorithm
Hardware platform: ZEM100 Communication mode: RS232, RS485, TCP/IP
Attendance speed: ＜=2 seconds False judgment rate: ＜=0.0001%
Disapproval rate: ＜=1% LED: red, green
LCD: 128×64 blue backlit Collector: central fingerprint scanner
Operating temperature: 0℃-45℃ Operating humidity: 20%-80%
Language selection: Simplified Chinese, Traditional Chinese, English
Dimensions: 190 (length) * 140 (width) * 57 (height) mm
success case
A certain department of Ping An Insurance: The branch uploads attendance data in real time at more than 800 attendance points across the country (X938);
China Telecom: Inspection monitoring and alarm system for enterprises in a certain area (over 80 points, F7)
China Merchants Bank: A department’s online attendance system, and the data is imported into the SAP HR system in real time (iClock 100)
Adult recruitment in a province: candidate identification system, the candidate identification record is uploaded to the central server in real time (U160)
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