The characteristics of the construction industry with many people and strong mobility have always been the key and difficult point of people management.Site position is a part of people management,whichis an important processing module for smart construction sites.
"Smart Construction Site" uses real-time positioning technology to track and locate personnel on the construction site, so as to know the whereabouts of personnel and other information in an all-round way to ensure safety. In particular, the monitoring and processing of the whereabouts of personnel in key positions can effectively prevent personnel from leaving their posts, ensure that responsibilities are in place, and provide practical and favorable data information for attendance.
A lot of personnel information data also provides the processor with the most direct basis for positioning. By analyzing the personnel requirements of various types of work in the construction stage, it can better assist the processor in formulating personnel arrangement plans, which saves the enterprise to a certain extent. Labor cost, so that the construction efficiency can be multiplied with half the effort. At the same time , the "smart construction site" combines video surveillance and construction site personnel positioning processing system to strengthen the management and control of foreign personnel and effectively curb illegal and criminal activities. Commonly used positioning technologies include infrared, ultrasonic, GPS, etc., but these technologies have the disadvantages of small positioning scale, poor anti-interference ability, and low positioning accuracy.
What is RFID?
The RFID personnel positioning system collects the information of electronic tags through long-distance and non-contact, and transmits it to the system through the wireless network. The system can transmit information in real time, and the accuracy can reach a radius of 2M. At present, it is more used in the pursuit of security inspection points. Automatic records of staff entering and leaving buildings and workshops, positioning and query of staff, understanding of the area where specific personnel are located, and statistical analysis of data of personnel in the area.
First, in a semi-closed or fully closed environment, there are common advantages to locating people by means of active RFID. In such an environment, GPS cannot play a role in positioning, but active RFID technology is unobstructed, which has been verified in the application of personnel positioning in coal mines for many years. Today, common applications of active RFID technology in closed environments include: locating construction personnel in subway tunnels, and locating personnel in buildings or warehouses.
Second, in open-air areas, active RFID is more accurate and useful for small-scale personnel positioning. According to the actual positioning requirements, in some active RFID readers that need special attention, by collecting the transmission information of the positioning target, the location of the positioning target can be determined by the coverage of the reader signal, combined with the locator. , The camera system can also achieve accurate positioning and video surveillance. Active RFID is used in the location and application of construction site personnel in an open-air environment, including the location and way of personnel tracking in various parks and ports.
Finally, active RFID has more and more broad application space in terms of personnel positioning in general places where indoor and outdoor are combined . In daily use, most of the positioning of personnel needs to be carried out in complex indoor and outdoor occasions. The current smart construction site production in full swing has put forward new requirements and specifications for the intelligent processing of personnel, which further expands this demand. Active RFID technology can seamlessly realize the switching positioning of indoor and outdoor.
