HE-1型电缆防盗保护仪的研究设计

Research and Design of HE-1 Cable Anti-Burglary Equipment

HE 1型电缆防盗保护仪的特征是被测电缆回路连接在测量电路中,电缆回路和测量电路的电源是直流电源,测量电路的信号输出端与控制电路相连接,控制电路输出驱动有线或无线报警电路。本电路的显著特点是,将电缆连接到测量电路中,并采用直流电源供电,这样电缆回路可以等效成纯阻回路,通过测量电路阻抗的变化反映路灯电缆的情况。其结构简单、性能可靠,采用有线或无线方式直接反馈到实时监控的终端,及时发现和防止路灯电缆被盗。

Obvious character of HE- 1 cable anti - burglary equipment is that the measured electric cable was connected with the measuring circuits. They are powered by an DC source. The measuring circuits are connected with the controller. Then the controlling part drives wired or wireless alarm system. Generally speaking, the electric cable is connected with the measuring parts in the system. And they are powered by a direct current source. So the cable circuits were seemed to be a series of pure resistance. We would measure the rarity of the pure resistance. It could reflect the circumstances of the cable. The system＇s constructure is very easy. And it＇s function is stable. The controller supervises the final parts by wired or wireless style. When the electric cable was stoled. The system would alert in time.