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1. 发明申请

WO2002099993A1 METHOD AND APPARATUS FOR TWO-WAY COMMUNICATIONS AMONGST A PLURALITY OF COMMUNICATIONS DEVICES 审中-公开
标题翻译：通信设备多路通信的方法和设备
公开(公告)号：WO2002099993A1
公开(公告)日：2002-12-12
申请号：PCT/CA2002/000829
申请日：2002-06-03
申请人： STRATEGIC VISTA INTERNATIONAL INC. , SCHWARTZMAN, Yaakov , LAVEE, Doron , KLIGMAN, Joel
发明人： SCHWARTZMAN, Yaakov , LAVEE, Doron , KLIGMAN, Joel
IPC分类号： H04B1/713
CPC分类号： H04B1/7156 , H04B1/7087
摘要： In a security system, a method and apparatus for two-way frequency hopping communications between the control panel and each peripheral device which maintains channel synchronization through the assignment of fixed beacon frequencies for the transmission of synchronizing data. The use of frequency hopping provides high immunity to jamming and interference, reduced occurrence of multi-path phenomena, and allows for transmissions at a much higher output power than conventional fixed-frequency communications, to thus increase the effective range of the peripheral devices while providing effective and reliable two-way communications between the control panel and the peripheral devices. The invention also provides a large number of channels, which allows for actuators such as sirens, strobes and line seizing devices to be wireless in addition to sensors. The invention provides a high immunity to signal jamming, interference from other wireless systems and miss-detection due to multi-path phenomena; reduces opportunities for collision between peripheral transmissions; and eliminates the redundant emission of peripheral transmissions to reduce RF traffic in the vicinity of the system and extend the life of batteries used in the peripheral devices.
摘要翻译：在安全系统中，一种用于控制面板和每个外围设备之间的双向跳频通信的方法和装置，其通过分配用于传输同步数据的固定信标频率来维持信道同步。跳频的使用对干扰和干扰提供了高的抗扰性，减少了多路径现象的发生，并且允许以比常规固定频率通信更高的输出功率进行传输，从而增加了外围设备的有效范围，同时提供控制面板和外围设备之间有效可靠的双向通信。本发明还提供了大量的通道，其允许除了传感器之外的致动器，例如警报器，闪光灯和线检测装置是无线的。本发明提供了对信号干扰，来自其他无线系统的干扰以及由于多路径现象引起的错误检测的高抗扰性; 减少外围传输之间的碰撞机会; 并且消除了外围传输的冗余发射，以减少系统附近的RF业务并延长外围设备中使用的电池的使用寿命。

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