UHF RFID application construction site personnel management,Waterproof Bracelet

　　UHF RFID application construction site personnel management

　　1. Background description

　　With the rapid development of cities, the demand for efficient and information-based construction sites is becoming more and more urgent, and in the complex and fast-paced construction environment, the management of personnel attendance is particularly important. The attendance of personnel on construction sites has certain particularities: first, the flow of people is large; second, the cultural level of most workers is low; third, the frequency of staff changes is relatively fast. Therefore, the attendance system of construction site entrance and exit personnel has special requirements: the first is large capacity, the second is that the operation should be convenient, and the last is that 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, and the overly complicated attendance process is not understood or easily accepted by workers. At the same time, information statistics are difficult, and the uncertainty of construction site working time and construction period brings many difficulties to the later work of attendance information statistics.

　　The traditional construction site management mode relies on manual records, which makes the management of personnel cumbersome and complex, and the management intensity is high. At the same time, it is prone to mistakes, inaccurate data registration, and difficult to query. Managers cannot quickly and accurately grasp the attendance time of construction site personnel. Difficulty and high cost.

　　The information-based construction site management urgently needs the intervention of modern management methods to realize the automatic, real-time and accurate collection of the attendance of construction site personnel, and to achieve more scientific management of the construction site for leaders. RFID radio frequency identification technology originated from the Second World War and has been in development for decades. In recent years, due to the vigorous promotion of Kailuwei Electronics Co., Ltd., the application of RFID has become more extensive and diversified, and the application has become more and more More and more mature, especially UHF RFID technology, the reading distance is long, the label is smaller, the cost is lower, the recognition speed is fast, and the multi-label recognition ability is strong. It is widely used in warehousing, transportation, assets, personnel management and other fields. . It successfully saves a lot of manpower and time for enterprises, improves operational efficiency and reduces operational costs, making it gradually become the mainstream technology in wireless automatic identification applications.

　　Based on UHF RFID technology, this solution proposes a set of automatic attendance management system suitable for construction site personnel to help management enterprises to achieve automatic and real-time accurate management of personnel attendance.

　　2. UHF RFID system

　　The UHF RFID system uses the principle of radar reflection. The reader sends a microwave query signal to the electronic tag through the antenna, and the electronic tag is activated by the microwave energy of the reader. After receiving the microwave signal, it responds and sends an echo signal with the tag data information. . The basic feature of radio frequency identification technology is to use radio technology to realize the identification of stationary or moving objects, so as to determine the identity of the object to be identified and extract the characteristic information (or identification information) of the object to be identified.

　　The characteristic information of the object to be identified collected through the RFID system is usually processed by the middleware first, or the collected identification information is directly processed through computer information processing technology (such as database technology, etc.) and computer network technology (Intranet & Internet technology). Technology) to achieve information fusion, sharing, long-distance transmission, etc. to directly serve related business application systems (such as: personnel management, access control systems, item/asset tracking, warehousing/logistics management, etc.).

　　UHF RFID application construction site personnel management

　　3. Overall scheme design of the system

　　3.1 Overall design of the system

　　Install UHF RFID card readers in the entry and exit passages of the construction site, stick self-adhesive RFID passive electronic tags in the safety helmets of construction workers, and automatically complete sign-in or sign-out when wearing safety helmets in and out of the passage. The main software and hardware of the system include: RFID card reader, RFID desktop card issuer, several RFID electronic tags, one set of management software, and several auxiliary materials such as network cables. UHF RFID technology has the advantages of being able to read multiple tags at one time, strong penetrability, multiple reading and writing, large data memory capacity, low cost of passive electronic tags, small size, convenient use, high reliability and high life expectancy. Features.

　　UHF RFID application construction site personnel management

　　3.2 Label installation

　　In this system, workers entering and leaving the construction site must wear safety helmets. Therefore, safety helmets can be used as a medium in this system. The access control channel with RFID identification system can complete the identification of attendance personnel.

　　3.3 Access control channel

　　RFID identification equipment is installed at the gates entering and leaving the construction site. When workers wearing safety helmets pass through, the identification of the attendance personnel can be realized by identifying the electronic tags bound to the safety helmets.

　　In the design of this system, the key is to identify multiple people entering and exiting at the access control channel at the same time, especially for wider gates, during the peak attendance time, the flow of people is large, and the device needs to have the ability to read multiple labels without missing.

　　UHF RFID application construction site personnel management

　　3.4 Display system

　　The LED display screen displays the real-time entry and exit numbers of various types of work (if specific personnel information is written, the personnel information can be displayed). At the same time, the management personnel can conveniently view the real-time personnel attendance status through the APP or WeChat public account.

　　UHF RFID application construction site personnel management

　　4. System Architecture Process

　　The construction workers and the engineering party sign labor contracts, and the engineering party conducts necessary pre-job training for the workers, collects photos of personnel, establishes files (name, ID number, electronic photo, etc.) in the reader management system, assigns RFID tags, Self-adhesive RFID passive electronic tags are pasted in the safety helmets of construction workers. When operators wear safety helmets to enter and exit the channel, the fixed card reader will automatically identify the electronic tag and complete the check-in or check-out.

　　UHF RFID application construction site personnel management

　　4.1 Label initialization

　　The RFID blank label itself does not represent anything, so the primary task of the RFID application system is to associate the RFID label with a unique ID number with each actual item one by one, and bind the ID identity of the label to the identity of the person. Up, so that each person has their own unique identity accordingly.

　　4.2 Attendance information management

　　Through RFID technology, the system can collect the data of personnel entering and leaving the construction site in time, so that the data is timely and accurate. It can form the management of basic attendance information, and can query the attendance sheet.

　　4.3 Security warning

　　For the illegal entry of people without cards, the system will automatically give an early warning. At the same time, records of rewards and punishments for practitioners and units, classification and registration of safety accidents, and inquiries and statistics on them. Alerts on violations that exceed the system-set number. Severe cases can be blacklisted.

　　4.4 Assignment of related permissions

　　The construction site can be assigned the authority to apply for the construction personnel card, and can send electronic tags to the construction personnel through the management system, report losses and other operations; construction personnel must go to the designated management office to apply for electronic tags, and perform identity registration and other data backup.

　　4.5 Attendance rule management

　　Different companies can set up corresponding attendance rules according to their specific conditions and systems, add data to the basic rules table, and modify the basic rules table. Set the basic commute time and the number of card swipes, as well as the corresponding rules such as being late, leaving early, and working overtime.

　　4.6 Statistical query

　　According to the generated employment records, salary payment records, attendance records, training records, safety accident records, reward and punishment records, meal records, attendance inquiries, accident inquiries, training inquiries and other data to provide project management with effective management methods and various projects Manage reports.

　　5. Hardware equipment selection

　　The application of RFID technology in the management of bank cash drawers provides basic data for the refined management of cash drawers by loading the cash drawer with RFID electronic tags to make it have a unique identity label, and obtaining the label information through the RFID reader. support.

　　In this application system, the accuracy of RFID data collection is very important, and the core equipment is the channel reader and mobile collection equipment.

　　5.1 Fixed reader

　　The fixed reader is mainly deployed at the entrance and exit of the construction site to complete the collection of the identity information of the construction workers entering and leaving.

　　KX822OUT is a four-channel UHF RFID reader, which has a high-speed reading capability of 750 tags/second, and can be connected to up to 4 antennas at the same time. . At the same time, KX822OUT has super anti-interference ability, which can adapt to various complex indoor and outdoor industrial environments.

Read recommendations:

M04 ISO11784/5 Animal Microchip Implant

M03 ICAR Certifiicated Injected Under Skin Microchip

M02- Pet Microchip with Needle Pack

RFID management and control scheme of property involved,RFID Tags

RFID material receiving and dispatching management system solution,RFID Seal