-
QRFC协议的数据包本身也要消耗时间传送！如何考虑这些时间的不可预订性？
A This is the essential challenge that Silabs' solution is trying to solve..tb_button {padding:1px;cursor:pointer;border-right: 1px solid #8b8b8b;border-left: 1px solid #FFF;border-bottom: 1px solid #fff;}.tb_button.hover {borer:2px outset #def; background-color: #f8f8f8 !important;}.ws_toolbar {z-index:100000} .ws_toolbar .ws_tb_btn {cursor:pointer;border:1px solid #555;padding:3px} .tb_highlight{background-color:yellow} .tb_hide {visibility:hidden} .ws_toolbar img {padding:2px;margin:0px}
-
Q四大卫星系统的准确度是否一致？
A Yes..tb_button {padding:1px;cursor:pointer;border-right: 1px solid #8b8b8b;border-left: 1px solid #FFF;border-bottom: 1px solid #fff;}.tb_button.hover {borer:2px outset #def; background-color: #f8f8f8 !important;}.ws_toolbar {z-index:100000} .ws_toolbar .ws_tb_btn {cursor:pointer;border:1px solid #555;padding:3px} .tb_highlight{background-color:yellow} .tb_hide {visibility:hidden} .ws_toolbar img {padding:2px;margin:0px}
-
QIEEE 1588达成高精度的时间同步，关于算法和协议是可以释放给用户吗？
A No, Silabs' servo algorithm is for license only..tb_button {padding:1px;cursor:pointer;border-right: 1px solid #8b8b8b;border-left: 1px solid #FFF;border-bottom: 1px solid #fff;}.tb_button.hover {borer:2px outset #def; background-color: #f8f8f8 !important;}.ws_toolbar {z-index:100000} .ws_toolbar .ws_tb_btn {cursor:pointer;border:1px solid #555;padding:3px} .tb_highlight{background-color:yellow} .tb_hide {visibility:hidden} .ws_toolbar img {padding:2px;margin:0px}
-
QRFC1588的时间同步和GNSS（GPS、北斗）的时间戳运用，是一种什么关系？可以互相校正吗？
A Yes .tb_button {padding:1px;cursor:pointer;border-right: 1px solid #8b8b8b;border-left: 1px solid #FFF;border-bottom: 1px solid #fff;}.tb_button.hover {borer:2px outset #def; background-color: #f8f8f8 !important;}.ws_toolbar {z-index:100000} .ws_toolbar .ws_tb_btn {cursor:pointer;border:1px solid #555;padding:3px} .tb_highlight{background-color:yellow} .tb_hide {visibility:hidden} .ws_toolbar img {padding:2px;margin:0px}
-
Q在RFC1588的模型中，如何将数据在链路中的传送时间控制得最小？
A This is part of Silabs' solution.tb_button {padding:1px;cursor:pointer;border-right: 1px solid #8b8b8b;border-left: 1px solid #FFF;border-bottom: 1px solid #fff;}.tb_button.hover {borer:2px outset #def; background-color: #f8f8f8 !important;}.ws_toolbar {z-index:100000} .ws_toolbar .ws_tb_btn {cursor:pointer;border:1px solid #555;padding:3px} .tb_highlight{background-color:yellow} .tb_hide {visibility:hidden} .ws_toolbar img {padding:2px;margin:0px}
-
Q千兆以太网IEEE 1588协议的时间同步可应用于哪些场合？
A Industrial automation (such as machine to marchine communciation)
-
Q如何解决在城市峡谷中确保网络时钟的准确度？
A By using the PTP to carry time/phase information over to the area where GPS cannot be received..tb_button {padding:1px;cursor:pointer;border-right: 1px solid #8b8b8b;border-left: 1px solid #FFF;border-bottom: 1px solid #fff;}.tb_button.hover {borer:2px outset #def; background-color: #f8f8f8 !important;}.ws_toolbar {z-index:100000} .ws_toolbar .ws_tb_btn {cursor:pointer;border:1px solid #555;padding:3px} .tb_highlight{background-color:yellow} .tb_hide {visibility:hidden} .ws_toolbar img {padding:2px;margin:0px}
-
Q无线网桥基站和客户端产品对数据延时比较敏感，启用RFC1588是否可以改善数据的同步性？
A Yes..tb_button {padding:1px;cursor:pointer;border-right: 1px solid #8b8b8b;border-left: 1px solid #FFF;border-bottom: 1px solid #fff;}.tb_button.hover {borer:2px outset #def; background-color: #f8f8f8 !important;}.ws_toolbar {z-index:100000} .ws_toolbar .ws_tb_btn {cursor:pointer;border:1px solid #555;padding:3px} .tb_highlight{background-color:yellow} .tb_hide {visibility:hidden} .ws_toolbar img {padding:2px;margin:0px}
-
Q请问不同的卫星系统需要不同的设计方案吗?
A No..tb_button {padding:1px;cursor:pointer;border-right: 1px solid #8b8b8b;border-left: 1px solid #FFF;border-bottom: 1px solid #fff;}.tb_button.hover {borer:2px outset #def; background-color: #f8f8f8 !important;}.ws_toolbar {z-index:100000} .ws_toolbar .ws_tb_btn {cursor:pointer;border:1px solid #555;padding:3px} .tb_highlight{background-color:yellow} .tb_hide {visibility:hidden} .ws_toolbar img {padding:2px;margin:0px}
-
Q高精度时间源从哪儿获取？
A GPS .tb_button {padding:1px;cursor:pointer;border-right: 1px solid #8b8b8b;border-left: 1px solid #FFF;border-bottom: 1px solid #fff;}.tb_button.hover {borer:2px outset #def; background-color: #f8f8f8 !important;}.ws_toolbar {z-index:100000} .ws_toolbar .ws_tb_btn {cursor:pointer;border:1px solid #555;padding:3px} .tb_highlight{background-color:yellow} .tb_hide {visibility:hidden} .ws_toolbar img {padding:2px;margin:0px}
-
Q如何保障卫星信号传输的安全性？是否会受到人为干扰？
A Right now, in different parts of the networks, there are localized GNSS timing sources being deployed and there is a standard/protocol used to choose which one is the primary reference clock (PRC). For example, in the core network there is a GNSS that we use to deliver frequency and time over packet networks to mobile access points. On the mobile access side, there are GNSS as well. Each side can be the backup if there is a localized GNSS failure. The net result is that the dependency on GNSS remains..tb_button {padding:1px;cursor:pointer;border-right: 1px solid #8b8b8b;border-left: 1px solid #FFF;border-bottom: 1px solid #fff;}.tb_button.hover {borer:2px outset #def; background-color: #f8f8f8 !important;}.ws_toolbar {z-index:100000} .ws_toolbar .ws_tb_btn {cursor:pointer;border:1px solid #555;padding:3px} .tb_highlight{background-color:yellow} .tb_hide {visibility:hidden} .ws_toolbar img {padding:2px;margin:0px}
-
Q请问一下,时间在同步的过程中,会有时延吗?误差有多少,可否忽略?
A Current focus of 1588 is about time/phase synchronization so known fixed latency is not so important. However, variable latency is what we want to eliminate as much as possible..tb_button {padding:1px;cursor:pointer;border-right: 1px solid #8b8b8b;border-left: 1px solid #FFF;border-bottom: 1px solid #fff;}.tb_button.hover {borer:2px outset #def; background-color: #f8f8f8 !important;}.ws_toolbar {z-index:100000} .ws_toolbar .ws_tb_btn {cursor:pointer;border:1px solid #555;padding:3px} .tb_highlight{background-color:yellow} .tb_hide {visibility:hidden} .ws_toolbar img {padding:2px;margin:0px}
-
QIEEE 1588对高速网络时间延迟的要求？
A Current focus of 1588 is about time/phase synchronization so known fixed latency is not so important. However, variable latency is what we want to eliminate as much as possible..tb_button {padding:1px;cursor:pointer;border-right: 1px solid #8b8b8b;border-left: 1px solid #FFF;border-bottom: 1px solid #fff;}.tb_button.hover {borer:2px outset #def; background-color: #f8f8f8 !important;}.ws_toolbar {z-index:100000} .ws_toolbar .ws_tb_btn {cursor:pointer;border:1px solid #555;padding:3px} .tb_highlight{background-color:yellow} .tb_hide {visibility:hidden} .ws_toolbar img {padding:2px;margin:0px}
-
QRFC1588的基准时钟源来自于哪里？是精度多高的时钟源？
A Time source will still come from GPS..tb_button {padding:1px;cursor:pointer;border-right: 1px solid #8b8b8b;border-left: 1px solid #FFF;border-bottom: 1px solid #fff;}.tb_button.hover {borer:2px outset #def; background-color: #f8f8f8 !important;}.ws_toolbar {z-index:100000} .ws_toolbar .ws_tb_btn {cursor:pointer;border:1px solid #555;padding:3px} .tb_highlight{background-color:yellow} .tb_hide {visibility:hidden} .ws_toolbar img {padding:2px;margin:0px}
-
Q1588协议时间精度在以后有可能会变成0吗？就是发展成完全没有时间差
A It will be very difficult to achieve absolute 0 time error but carefully architected system could achieve 5ns accuracy, we believe..tb_button {padding:1px;cursor:pointer;border-right: 1px solid #8b8b8b;border-left: 1px solid #FFF;border-bottom: 1px solid #fff;}.tb_button.hover {borer:2px outset #def; background-color: #f8f8f8 !important;}.ws_toolbar {z-index:100000} .ws_toolbar .ws_tb_btn {cursor:pointer;border:1px solid #555;padding:3px} .tb_highlight{background-color:yellow} .tb_hide {visibility:hidden} .ws_toolbar img {padding:2px;margin:0px}
-
QSilicon Labs 时钟产品有多少款和RFC1588有关的产品？
ASilicon Labs提供一系列的IEEE 1588 和同步以太网定时解决方案，包括模块和软件工具，您可以访问产品官网查阅相关信息和文档：https://cn.silabs.com/timing/network-synchronizers
-
Q以太网数据包的TCP和UDP传送的可靠性模式是不同的，延时或者丢包的特性也不同，他们分别如何和RFC1588协议建立关联关系？
A They are defined as a part of PTP stack/profile..tb_button {padding:1px;cursor:pointer;border-right: 1px solid #8b8b8b;border-left: 1px solid #FFF;border-bottom: 1px solid #fff;}.tb_button.hover {borer:2px outset #def; background-color: #f8f8f8 !important;}.ws_toolbar {z-index:100000} .ws_toolbar .ws_tb_btn {cursor:pointer;border:1px solid #555;padding:3px} .tb_highlight{background-color:yellow} .tb_hide {visibility:hidden} .ws_toolbar img {padding:2px;margin:0px}
-
Q1588主要应用场景有哪些？和pgs的精度相差多少
A In telecom, 5G, data center switches, NIC cards, auto driving or Industrial Ethernet networks in general for synchronized drives and robotics, and others as well. They are definite in IEEE..tb_button {padding:1px;cursor:pointer;border-right: 1px solid #8b8b8b;border-left: 1px solid #FFF;border-bottom: 1px solid #fff;}.tb_button.hover {borer:2px outset #def; background-color: #f8f8f8 !important;}.ws_toolbar {z-index:100000} .ws_toolbar .ws_tb_btn {cursor:pointer;border:1px solid #555;padding:3px} .tb_highlight{background-color:yellow} .tb_hide {visibility:hidden} .ws_toolbar img {padding:2px;margin:0px}
-
Q时间同步的精确度是靠什么确定的？相差到什么程度？NS级别的差异会有什么影响？
A PTP time synchronization is done by transmitting and receiving PTP messages (i.e. timestamps) between two nodes..tb_button {padding:1px;cursor:pointer;border-right: 1px solid #8b8b8b;border-left: 1px solid #FFF;border-bottom: 1px solid #fff;}.tb_button.hover {borer:2px outset #def; background-color: #f8f8f8 !important;}.ws_toolbar {z-index:100000} .ws_toolbar .ws_tb_btn {cursor:pointer;border:1px solid #555;padding:3px} .tb_highlight{background-color:yellow} .tb_hide {visibility:hidden} .ws_toolbar img {padding:2px;margin:0px}
-
QSilicon Labs 的时钟产品中的软件工具主要提供哪一些功能？是不是收费的？（License？）
ASilicon Labs提供一套完整的时钟开发软件ClockBuilder Pro，可用于评估和开发Silicon Labs的全系列时钟产品并且相当易于使用，有助您加速并简化时钟树的设计。您可以至官网了解更多相关信息：https://cn.silabs.com/developers/clockbuilder-pro-software
- 0425召开 采用革命性的栅极驱动器技术简化并加速高功率 GaN 和 SiC 系统的实现
- 0306召开 适合物联网和可穿戴设备的“小型锂离子二次电池”