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| 型号： | CC2431DK |
| 厂商： | Texas Instruments |
| 文件页数： | 7/33页 |
| 文件大小： | 0K |
| 描述： | KIT DEV FOR CC2431 |
| 标准包装： | 1 |
| 系列： | SmartRF® |
| 类型： | 收发器，802.15.4/Zigbee |
| 频率： | 2.4GHz |
| 适用于相关产品： | CC2431 |
| 已供物品： | 12 个板，12 个模块，12 根天线，线缆，文档 |
| 相关产品： | CC2431ZRTCRG3-ND - CC2431ZRTCRG3 CC2431ZRTCG3-ND - CC2431ZRTCG3 296-32621-ND - IC SOC 802.15.4 SENSR NEW 48QFN CC2431ZDK-ND - CC2431ZDK CC2431RTC-ND - CC2431RTC 296-21980-1-ND - IC SOC IEEE 802.15.4/ZIG 48-VQFN 296-21980-2-ND - IC SOC IEEE 802.15.4/ZIG 48-VQFN 296-21940-6-ND - IC SOC 802.15.4 SENSR NET 48-QFN 296-21940-1-ND - IC SOC 802.15.4 SENSR NET 48-QFN 296-21940-2-ND - IC SOC 802.15.4 SENSR NET 48-QFN |
| 其它名称： | 296-23004 CC2431DK-ND |
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CC2431
5.2 Nodes
The CC2431 Location Engine uses the RSSI value combined with the physical location of the
Reference Nodes to calculate its own position.
Any number of Reference Nodes can be used in the system, but a node can only calculate its
position if it is within range of at least three Reference Nodes 1 .
Experiments have shown that one Reference Node for each 100 m 2 gives good location
estimates. The nodes should be placed in a grid with one node for each 10 meters in both
directions.
5.2.1
Reference Node
A node which has static location is called a Reference Node. This node must be configured
with an X and a Y value that correspond to the physical location.
The main task for a Reference Node is to provide “reference” packets to the Blind Node.
Reference packets contain the X and Y coordinates of the Reference Node.
5.2.2
Blind Node
A Blind Node will communicate with its nearest Reference Nodes, collecting X, Y and RSSI
values for each of these nodes. Then it uses the location engine hardware to calculate its
position based on the collected parameters from several Reference Nodes.
5.2.3
Dongle
The Dongle will communicate with the entire network; it can request or configure the X,Y
values of all Reference Nodes and the A and N values of the Blind Nodes via the Z-location
Engine PC Application. The Z-location Engine can also configure any Blind Node to
automatically make a periodic position calculation and report (by default the Blind Node is
waiting for a command to perform a position calculation.)
5.3 RSSI
The RSSI value is typically in the range -40 dBm to -90 dBm, where -40 dBm is the highest
value. -40 dBm is approximately the measured signal strength on distance of one meter. Input
to the location engine hardware is the absolute value of the RSSI in dBm, so the range will
typically be from 40 to 90, where 40 is the highest signal strength.
1
Three is a lower theoretical limit, for a good estimate three Reference Nodes may be too
few.
SWRU076D
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相关PDF资料 |
PDF描述 |
|---|---|
| CC2480A1RTC | IC Z-ACCEL ZIGBEE PROC 48-VQFN |
| CDJB3 | JUNCTION BOX COLORDRV 1/IN 3/OUT |
| CEA-06-062UR-350 | STRAIN GAGE 350 OHM RECT |
| CEA-06-062UT-350 | STRAIN GAGE 350 OHM TEE |
| CEA-06-062UW-350 | STRAIN GAGE 350 OHM LINEAR |
相关代理商/技术参数 |
参数描述 |
|---|---|
| CC2431EMK | 功能描述:Zigbee/802.15.4开发工具 CC2431 Eval Mod Kit RoHS:否 制造商:Silicon Labs 产品:Development Kits 工具用于评估:EM35x 频率:2.4 GHz 接口类型:USB 工作电源电压: |
| CC2431-RTB1 | 制造商:TI 制造商全称:Texas Instruments 功能描述:System-on-Chip for 2.4 GHz ZigBee/ IEEE 802.15.4 with Location Engine |
| CC2431RTC | 功能描述:RF片上系统 - SoC CC2431 SoC 2.4 GHz Transceiver Chipset RoHS:否 制造商:Texas Instruments 类型:Zigbee 处理器系列:CC253 核心:8051 最大数据速率:250 Kbps 输出功率:4.5 dBm 灵敏度:- 97 dBm 工作电源电压:2 V to 3.6 V 接收供电电流:24.3 mA 传输供电电流:33.5 mA 程序存储器大小:256 KB 工作温度范围:- 40 C to + 125 C 封装 / 箱体:QFN-40 |
| CC2431RTCR | 功能描述:RF片上系统 - SoC CC2431 2.4 GHz Chip in Tape and Reel Pkg RoHS:否 制造商:Texas Instruments 类型:Zigbee 处理器系列:CC253 核心:8051 最大数据速率:250 Kbps 输出功率:4.5 dBm 灵敏度:- 97 dBm 工作电源电压:2 V to 3.6 V 接收供电电流:24.3 mA 传输供电电流:33.5 mA 程序存储器大小:256 KB 工作温度范围:- 40 C to + 125 C 封装 / 箱体:QFN-40 |
| CC2431-RTR1 | 制造商:TI 制造商全称:Texas Instruments 功能描述:System-on-Chip for 2.4 GHz ZigBee/ IEEE 802.15.4 with Location Engine |
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