完善资料让更多小伙伴认识你,还能领取20积分哦, 立即完善>
|
|
相关推荐
7个回答
|
|
不要急着回答;我想你们都在IEEE或类似的机构工作。或者你们都是工程师。或者你们都没有真正的家庭自动化,只需要几个月的时间…
以上来自于百度翻译 以下为原文 ...don't rush at replying ;) :D I suppose you all work at IEEE or alike. or you're all engineer. or you all have no real house automation. just some more months to go... |
|
|
|
达里奥,为了了解MiWi Mesh操作,我尝试了MiWi和WiFi的结合,并通过互联网连接多个MiWi网状网络来检查是否能够创建大范围的覆盖。为此,我用MRP24J40制作了一个板,PIC16F6。7K22和MRF24G0MA和一个只有MRF24J40和PIC67 K22加上一些I/O的第二板实现了一个最小的网络并进行了实验,但是由于我没有传输大量的数据,所以我发现WiFi和MiWi之间没有干扰。我的兴趣集中在软件问题上,用于中继信息、处理延迟数据、统一时间保持等。我不关心高WiFi流量的可能共存,因为我的安排并不意味着MIWI网与WiFi区域的共同位置,除了MiWi到WiFi桥站。从我读802.15.4所理解的,2.4 GHz不是唯一可以与O-QPSK一起使用的频带。除了Microchip的MRF24J40之外,不同的设备可以在其他可用频带之一上工作,只要这种设备是市售的。这可能会解决你的问题。我有一种感觉,微芯片本身对MRF24J40不太满意。
以上来自于百度翻译 以下为原文 Dario, I did play around with combined MIWI and WIFI just for the sake of understanding MIWI mesh operation, and checking the possibility of creating large territory coverage by interconnecting a number of MIWI mesh networks via the Internet. For this purpose I made a board with a MRF24j40, a PIC16F67K22 and a MRF24G0MA and a second board with just an MRF24J40 and PIC67K22 plus some I/O. I implemented a minimal network and experimented, but since I was not transmitting high volumes of data I found no interference between WIFI ad MIWI. My interest were concentrated on software issues for relaying information, handling delayed data, uniform time keeping etc. I was not concerned with the possible coexistance of high wifi traffic because my arrangement was not meant to have the miwi net be co-located with the wifi area except for the miwi to wifi bridge stations. From what I understand by reading 802.15.4 the 2.4 Ghz is not the only frequency band that can be used with O-QPSK. A different device other than Microchip's MRF24J40 could possibly operate on one of the other available bands, provided such device is commercially available. This might solve your issue. I have the feeling that Microchip itself is not very pleased with the MRF24J40. |
|
|
|
我刚查过。显然,AT86RF212B ATMEL转换器可以用于满足您的目的。恐怕这意味着重新设计河流。
以上来自于百度翻译 以下为原文 I just checked. Apparently the AT86RF212B tranceiver by Atmel could be used to suit your purpose. I am afraid it would imply somedriver redesign. |
|
|
|
这是因为在MIWI/ZigBee上使用的服务/协议是未被认可的,所以消息可能丢失。可以使用认可的服务吗?BT也在相同的频谱中。
以上来自于百度翻译 以下为原文 Is it because the services/protocols being used on MiWi/Zigbee are un-acknowledged so the messages can get lost. Could an acknowledged service be used instead? BT is also in the same spectrum. |
|
|
|
我知道,其他频率是可以使用的。但这很有趣…
以上来自于百度翻译 以下为原文 I know, other frequencies could be used. but it's just funny... |
|
|
|
我避开了5GHz,因为这是另一个流行的家用WiFi频段。我会说使用900兆赫,但它有其他(更不经常)干扰,并取决于你的国家可能或可能不合法。
以上来自于百度翻译 以下为原文 I'd shy away from 5GHz as that's another popular home WiFi frequency band. I would say use 900 MHz, but that has other (much less often) interference, and depending on your country may or may not be legal. |
|
|
|
达里奥,我知道你知道,我很欣赏你把我们的注意力放在这样一个关键问题上,即共同定位无线电服务竞争频带的兼容性。你的帖子总是有用的,即使是有趣的。请不要遗漏架构师,因为我相信他们比工程师低一步(我会把律师放在最下面)。
以上来自于百度翻译 以下为原文 Dario, I knew you knew, and I appreciated you pointed our attention on such a key issue as the compatibility of co-locating radio services competing for band. As always your posts are useful, even when funny. Please do not leave out architects, because I believe they are a step lower than engineers (I would put lawyers at the bottom). |
|
|
|
只有小组成员才能发言,加入小组>>
5208 浏览 9 评论
2017 浏览 8 评论
1943 浏览 10 评论
请问是否能把一个ADC值转换成两个字节用来设置PWM占空比?
3189 浏览 3 评论
请问电源和晶体值之间有什么关系吗?PIC在正常条件下运行4MHz需要多少电压?
2244 浏览 5 评论
758浏览 1评论
646浏览 1评论
有偿咨询,关于MPLAB X IPE烧录PIC32MX所遇到的问题
564浏览 1评论
PIC Kit3出现目标设备ID(00000000)与预期的设备ID(02c20000)不匹配。是什么原因
657浏览 0评论
556浏览 0评论
小黑屋| 手机版| Archiver| 电子发烧友 ( 湘ICP备2023018690号 )
GMT+8, 2024-12-9 22:36 , Processed in 1.532355 second(s), Total 90, Slave 72 queries .
Powered by 电子发烧友网
© 2015 bbs.elecfans.com
关注我们的微信
下载发烧友APP
电子发烧友观察
版权所有 © 湖南华秋数字科技有限公司
电子发烧友 (电路图) 湘公网安备 43011202000918 号 电信与信息服务业务经营许可证:合字B2-20210191 工商网监 湘ICP备2023018690号