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The campus has always been regarded as sacred and inviolable, and relatively safe in terms of the social environment, but at the same time the campus is the easiest place to become a dangerous area. In recent years, whether it is abroad or at home, campus security incidents have frequently broken out. Whether it is theft, shooting or violence, it is related to the loopholes in the campus security inspection system. To do a good job in campus security inspection, the first thing is to keep the “school gate” well, and the identity of the people entering and exiting must be determined, but relying on the traditional security inspection method one by one is obviously very inefficient. The new era calls for the popularization of new technologies. As one of the most advanced technologies nowadays, RFID technology has become more and more obvious in security inspection and access control.
RFID Radio Frequency Express has done relevant case analysis on the use of RFID identification cards to strengthen management in a Chicago high school in the United States. Interested readers can click to view it. The selected case this time is the same as the access control management application, but the focus is different. In the Chicago high school case, RFID identification cards are issued to students to manage students’ access; while the latter focuses on vehicles that drive into the campus. . The specific cases are as follows:
The new system reduces tag costs by 75% and increases the read rate from 29% to 99%
The world’s largest Christian and humanities university, Bob Jones University (BJU), has recently conducted a comprehensive evaluation of the function, design, and safety of its campus entrance in Greenville, South Carolina, hoping to create a great experience for teachers and students. A friendlier and safer environment.
Previously, the front door of the campus was monitored and controlled by a set of RFID access control system, in which the active RFID tag was affixed to the windshield of the car. However, inherent flaws in school construction (RFID radio frequency bulletin: including the design of buildings and school gates, and adjacent streets, etc.) limit the application of this system. All these problems resulted in a system read rate of only 19%. In addition, the system is battery-powered and has a service life of only two to three years. At the same time, it is accompanied by the high cost of tags.
The BJU school staff redesigned the front door of the campus and fully considered the previous problems during the design process. At the same time, the university selected Intermec and its partner Regan Inc. as the supplier of the solution, installed passive UHF RFID equipment and adopted the corresponding logistics technology, without the need for batteries and expensive tags. The whole system includes Intermec IF4 RFID reader, antenna embedded in the brick pillar of the school gate and Intermec IT32A Gen 2 identification tag.
According to Regan, Inc, BJU’s adoption of this system was partly driven by the shooting on the campus of Virginia Tech. They realized that because there is no way to ensure campus safety, the school does not know who is on campus and who is not, and the safety of students cannot be guaranteed. BJU cooperates with Intermec to provide matching hardware and technical support to enhance the safety of BJU students.
beyond expectation
Since the students start in the fall, the time allocated to the design and implementation of the program is only 5 months. At the most critical moment when selecting suppliers, Intermec won. Regarding Intermec’s victory, Paul Litzenberger, IT telecommunications manager at Bob Jones University, pointed out that Intermec’s reader/writer products have more than twice the reading distance of similar competitors. “They (Intermec) not only proved that the passive RFID tags attached to mobile vehicles can be connected to the antenna, but the actual reading range of the product also exceeded their expectations.”
Intermec’s RFID reader was designed with a reading range of 13 feet at the time, and after a redesign, the reading range reached 35 feet, so the overall product improvement rate was 269%.
According to Litzenberger, Intermec has also done a lot of work to meet the needs of the school. In the end, these efforts increased the reading distance by about 15% to 20%, which exceeded expectations.
On the one hand, the new construction makes the campus more beautiful and safer, and at the same time solves the previous technical problems, but on the other hand brings a series of new technical challenges. Specific challenges include the location of the installation system, multiple lanes, multiple buildings, lack of overhead structures for antennas, and more and more vehicles. All these changes are changes that Intermec needs to reconsider during field testing.
Litzenberger said that the entire deployment process of the system can be regarded as a concerted effort, especially in the later stage of intense work, the cooperation becomes more valuable. “As a team, Intermec will work hard to reduce variables and ensure that the reading distance is maintained at 35 feet in the actual application environment. Even if school starts tomorrow, the system must be installed tonight.”
Improve efficiency, but also save costs
After the system was deployed, the read rate increased from 29% to 99%. After 16 days of testing on 2,900 cars, it was discovered that only 3 cars could not be read correctly in the initial test because the engine could not be recognized. After further testing under various conditions, the remaining 3 cars all passed the test. Because Intermec’s solution uses passive RFID technology, the battery is eliminated, and the life of the tag has been extended from two to eight years. In addition, the university has reduced tag costs by at least 75% by implementing RFID technology.
Litzenberger pointed out that the school compared the cost of the original system with the Intermec system and found that the new system did indeed save a lot of cost. The reduction in tag costs enables the school to pay for the RFID part of the project. These costs are at least lower than the cost of purchasing two-year ID cards.
The results of the implementation of this technology have proven to improve the overall efficiency of the staff. In the past, the school’s security guards would stand near the school gate, and each car had to manually press a button to let it go. A survey of the traffic of more than 2,000 vehicles found that the average number of vehicles passing the school gate every night is 750-of which only 150 can be read correctly under the surveillance of the security guard. Now, although it is a shift, the security guards are mainly focused on other tasks, but the vehicle identification inspection can still be carried out effectively.
Litzenberger said that since the adoption of the new RFID system, there have been fewer complaints. The application of the system has been very successful and will also create a safer environment for the entire school.
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