Based on RFID technology construction site personnel attendance management solution
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1. Project background
The attendance of construction site personnel has certain particularities: first, the flow of people is large; second, the education level of most workers is low; third, the frequency of staff changes is relatively fast. Therefore, the attendance system for entry and exit personnel at construction sites has special requirements: first, large capacity, secondly, convenient operation, and lastly, the system update procedure should be simple and fast. The working hours of construction site personnel are not fixed, and the work cycle is not fixed. Workers do not understand or accept the overly complex attendance process. At the same time, information statistics are difficult, and the uncertainty of construction site work time and construction period brings many difficulties to the later work of attendance information statistics.
2. Program overview
Install UHF RFID readers in the entry and exit passages of the construction site, stick a self-adhesive RFID passive electronic tag in the safety helmet of the construction worker, and automatically complete the sign-in or sign-out when the safety helmet enters and exits the passage. The main software and hardware of the system include: 1-2 fixed RFID readers, 1 RFID desktop card issuer, 1-2 RFID handheld terminals, several RFID electronic tags, 1 set of management software (PC terminal + mobile terminal), network cable Several other auxiliary materials. UHF RFID technology has the advantages of being able to read multiple tags at one time, strong penetrability, multiple read and write, large data memory capacity, low cost of passive electronic tags, small size, convenient use, high reliability and long life, etc. Features.
Three, system architecture
Fourth, the implementation plan
1. Label installation
In this system, workers entering and leaving the construction site must wear safety helmets. Therefore, the safety helmet can be used as a medium in this system. The access control channel with RFID identification system can complete the identification of attendance personnel.
2. Access control channel
Install RFID identification equipment at the gates entering and exiting the construction site. When workers wearing safety helmets pass by, the electronic tags bound on the safety helmets are identified to realize the identification of attendance personnel.
In the design of this system, the key lies in the simultaneous identification of multiple people entering and exiting at the access control channel, especially for wider gates. During the peak attendance hours, the flow of people is large, and the device needs to have the ability to not miss reading of multiple tags.
3. Display system
The LED display shows the real-time number of people entering and exiting each type of work (if specific personnel information is written, the personnel information can be displayed). At the same time, managers can conveniently view the real-time personnel attendance status through APP or WeChat official account.
4. RFID handheld terminal audit
The management personnel inside the construction site hold RFID mobile terminals with mobile management software installed on the mobile terminals to conduct personnel verification and inspections on the on-duty employees.
Five, system process
The construction worker and the engineering party sign a labor service contract. The engineering party conducts necessary pre-job training for the workers, collects personnel photos, establishes files (names, ID numbers, electronic photos, etc.) in the reader management system, and assigns RFID electronic tags. Stick a self-adhesive RFID passive electronic tag in the helmet of the construction worker. When the operator wears a helmet when entering and exiting the channel, the fixed card reader automatically recognizes the electronic tag, and completes the sign-in or sign-out.
1. Label initialization
The RFID blank tag itself does not represent anything, so the first task of the RFID application system is to associate the RFID tag with a unique ID number with the actual goods through the RFID card issuer, and associate the ID of the tag with the person. The identities are bound together, so that each individual has his own unique identity accordingly.
2. Attendance information management
Through RFID technology, the system can collect the data of personnel entering and leaving the construction site in time to make the data timely and accurate. The management of basic attendance information can be formed, and the attendance table can be inquired.
3. Safety warning
For illegal entry of people without a card, the system will automatically give an early warning. At the same time, records of rewards and punishments for employees and units, classified registration of safety incidents, and inquiries and statistics on them. Warn of violations exceeding the number of violations set by the system. Severe ones can enter the blacklist.
4. Assignment of related permissions
Construction sites can be assigned the authority to handle the construction personnel card, and the construction personnel can be issued electronic tags and report the loss through the management system; construction personnel must go to the designated management office to apply for electronic tags and perform identity registration and other data backup.
5. Attendance rule management
Different companies can set corresponding attendance rules according to their own specific conditions and systems, add data to the basic rule table, and modify the basic rule table. Set the basic commuting time and the number of swiping cards, as well as corresponding rules for being late, leaving early, and working overtime.
6. Statistics query
Provide effective management methods and various projects for project management based on the data generated from employment records, salary payment records, attendance records, training records, safety accident records, rewards and punishment records, meal records, attendance queries, accident queries, training queries, etc. Management reports.
Six, hardware equipment selection
In this application system, the accuracy of RFID data collection is very important, and its core equipment is the fixed RFID reader and RFID handheld terminal equipment.
1. Fixed RFID reader
Fixed RFID readers are mainly deployed at the entrance and exit of construction sites to collect the identity information of construction workers entering and exiting.
Yueran F103 is a high-performance UHF RFID read-write integrated machine, completely independent intellectual property design combined with a proprietary high-efficiency signal processing algorithm, while maintaining a high reading rate, to achieve rapid read and write processing of electronic tags , Widely used in parking lot IC card reading, weighing management, sanitation vehicle management, access control and attendance, intelligent transportation, logistics vehicle management, production line management, anti-counterfeiting system and production process control and other radio frequency identification (RFID) systems.
2. RFID desktop card issuer
The RFID desktop card issuer mainly initializes the tag and completes the binding of the ID of the tag and the identity of the person.
Yueran FU100 is a high-performance UHF RFID reader, designed with completely independent intellectual property rights, based on a highly integrated RFID engine ASIC design, combined with a proprietary efficient processing algorithm, while maintaining a high reading rate, Realize the rapid read and write processing of electronic tags, which can be widely used in a variety of radio frequency identification (RFID) application systems such as personal identification, conference sign-in systems, access control systems, anti-counterfeiting and production process control.
3. RFID handheld terminal
In this system, the RFID handheld terminal can be used as a mobile collection device, which can flexibly complete some daily operations that need to be manually processed in the construction site.
Yueran HA500 UHF handheld terminal is an industrial PDA integrated with ISO18000-6C (EPC GEN2) external UHF RFID module, designed for UHF RFID long-distance applications. With advanced anti-collision algorithm and cutting-edge radio frequency circuit design, it has the characteristics of strong anti-collision ability, long reading and writing distance, high sensitivity, stability and reliability. At the same time, it is a rugged, multi-functional industrial-grade mobile data acquisition terminal, which can be flexibly configured with 1D/2D barcode scanning, fingerprint recognition, ID card recognition and other functions, and can realize barcode, UHF and HF at the same time. Configuration to meet application requirements in complex environments.
4. Passive RFID electronic tags
Passive RFID electronic tags identify personnel.
RFID UHF self-adhesive label TU205 adopts a unique tag antenna design, has excellent performance, can read long-distance multi-tags, and is widely used in commodity logistics, book tags, file management, warehousing, product identification, and item anti-counterfeiting And other fields.
Seven, company profile
Shanghai Yueran Information Technology Co., Ltd. (“Yueran Information” for short) is a technology-based enterprise specializing in the application of RFID automatic identification technology and Internet of Things data collection related technologies, with more than 8 years of industry experience. Relying on RFID (Radio Frequency Identification) products, the company is committed to organically combining the Internet of Things technology with “Internet +”, and continues to develop the application fields of RFID technology.
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