山东省龙口市无线电厂研制、生产的JX—5型图书监测系统能有效地防止图书馆因开架阅览和开架借书而引起的图书失窃。该系统置于出口通道中,一旦读者私自携带装有磁条的书籍通过通道时,系统立即发出报警声和灯光报警信号。配上自动锁门装置可以自动锁住通道的出口。如果读者携带图书办理了借阅手续(由与系统配套的“充消敏器”对其进行消敏处理——指装有复合磁条的书籍),在通过出口通道时,就不会引起 Shandong Longkou Radio Factory developed and produced by the JX-5 book monitoring system can effectively prevent the library because of open-shelf reading and open books caused by the theft of books. The system is placed in the exit channel, the reader once the book itself containing magnetic stripe through the channel, the system immediately issued a warning sound and light alarm signal. Coupled with automatic locking device can automatically lock the exit of the channel. If you go through the exit channel with a book, you have to borrow books (desensitized by the system’s “charge deionizer” - a book with composite magnetic stripe)