Zigbee / Xbee信号强度测量（RSSI） [英] Zigbee/Xbee Signal Strength Measurement (RSSI)

问题描述

嘿伙计们，我有点希望有人可以帮助我完成我正在上学的项目...


我们正在设计一个有人会接​​近的机器人，机器人会询问用户是否要去A，B或C房间。（请记住，所有房间都在没有转弯的走廊里）。


我们决定在每个房间放置Xbee模块，在机器人上放置一个额外的xbee模块。在每个房间的前面，我们希望从所有3个固定的xbee模块中获取信号强度读数，并且tringulate的类型为tringulate。机器人的位置就这样（在每个房间的前面，每个xbee模块的RSSI理论上应该明显不同）。


我明白xbee模块的引脚6是RSSI引脚，但我需要知道如何设置安装在机器人上的xbee模块与3个固定模块通信并从固定模块读取数据。这可能与将机器人模块设置为广播模式有关。


另外我读过我可能需要使用PWM滤波器，但我不确定，因为我想在发送器而不是接收器接收信号强度。


任何帮助都会很好，谢谢！

解决方案

对不起......我们不时收到Zigbee和Xbee的问题，但是我们没有专家在这个论坛上有足够的知识可以提供帮助...


Google是你的朋友。

好的，谢谢！

如果使用maxstream的XBEE_API进行通信，则每个通信的消息将在帧中的一个字节中包含RSSI值。

RSSI不是"强度"测量，因为它是干扰的测量。即，更好 ...

的数字越小

Hey guys, I was kind of hoping that someone could help me out with a project I am working on for school...

We are desigining a robot that someone will approach, and the robot will ask the user if they would like to go to room A, B, or C. (keep in mind all the rooms are in a striagh hallway with no turns).

We have decided to put Xbee modules at each room and an additional xbee module on the robot. In front of each room, we would like to take a signal strength reading from all 3 stationary xbee modules and kind of "tringulate" the robot''s location this way (in front of each room, the RSSI of each xbee modules theoretically should be noticably different).

I understand that the pin 6 of the xbee module is the RSSI pin, but i need to know how to set the xbee module mounted on the robot to communicate with the 3 stationary modules and take readings from stationary module. It probably has to do with setting the robot''s module to broadcast mode.

Also i have read that i may need to use a PWM filter, but am not sure since I want to receive the signal strength at the sender, not the receiver.

Any help would be greath, thanks!

解决方案

Sorry... we get Zigbee and Xbee questions from time to time, but we have no experts on this forum with enough knowledge to be helpful...

Google is your friend.

Alright, thanks anyways!

If you use maxstream''s XBEE_API to communicate, every communicated message will contain the RSSI value in one of the bytes in the frame.
The RSSI is not a "strength" measurement so much as it is a measurement of interference. i.e. The smaller the number the better...

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