方案介绍

目前市面的智能插座开始出现电量检测和负荷辅助监控的功能需求，这就对电网运营状况和检测技术提出了更高要求。对于不太熟悉电网情况的开发者该如何面对困扰?MicroMonitor电量监控智能插座方案由英国著名智能表具测量团队设计完成，该插座无需额外电池，可以将产品的耗电量实时展示，预计量产后成本将低于9美金。

这款产品可以单独使用，也可以和其他产品或服务相结合，比如直接放在壁装电源插座上、插座上或者放置于用电设备上。

该设备内部集成“c-strip”电流传感器，并有一个片上软件库进行电量计算。通过交直流转换器供电，待机功率仅为10mW。

消费者应该知道家电的具体耗电量，目前大多数设备只显示家庭总计的耗电量。“如果消费者希望减少家庭总耗电量，那么他们至少要了解家电真正的功率是多少，而目前个人的智能电量监控系统非常笨重及昂贵，无法进行实时测量，而且也不够准确。”

该产品参考设计体积为24x22x15mm，支持120-240V交流电，自带433MHz无线收发模块，同时也支持915MHz无线频率，Zigbee以及Z-Wave。当然ZigBee，Z-Wave需要外接部件来配合完成。

MicroMonitor 还可集成其他传感器，包括光、声音、温湿度、压力以及红外热传感器，意味该方案可以被设计融合到更广泛的家庭智能节电上，构建专属的个人家庭能源原理系统(HEMS)。

MicroMonitor:

An Embedded System Boot Platform

MicroMonitor:

An Embedded System Boot Platform

Quick introduction

User manual

Current release

Available releases

uCon

MicroMonitor, or uMon, is an open-source embedded system boot platform. It is a mature, target-resident environment that provides the target system with a set of capabilities that enhance the development process and add to the flexibility of the deployed application. In its simplest form, it is a bootloader used to speed up the early stages of embedded system development by providing a target independent mechanism for program/data storage as well as industry standard communication interfaces for transfer of data to/from the target.

As a part of a development strategy for an organization, it provides a common base platform, an integral part of the application itself, providing the system with a core set of features that are generic in nature, and should be useable by application code regardless of the operating system chosen.

uMon-M: Port to Cortex-M3/M4 boards. This is a port of uMon to a (relatively) small-memory-footprint system. It required several adjustments to uMon standard; hence the need to create a separate uMon-M (uMon for MCUs) tarball. As of this writing (Jan 2015), there are ports for the following MCUs: LPC1768 (board=Simplecortex), STM32F4 (board=Discovery), Kinetis-K60 (board=TWR-K60N512) and Kinetis-K64 (board=FRDM). I added a chapter to the end of the user manual documenting the changes made to fit this type of system and also wrote a short "getting started" guide for uMon-M on the K64F-FRDM board.

A fully enabled MicroMonitor platform includes:

Extensible built-in flash file system (TFS)

Support for JFFS2 and FAT

TFTP client/server for network file transfer

Xmodem for serial file transfer

On-board ASCII file creation (i.e. target resident file editor)

File-based scripts with conditional branching

ASCII-script-driven startup options

Command line history and editing

UDP and RS232 based command line interaction

Versatile configuration management using files

Symbols and shell variables

Symbolic display of variables, stack trace, runtime profiling and memory-based runtime trace

Gdb server for application loads and post-mortem analysis

Network host supporting ICMP and DHCP/BOOTP as a startup option

Syslog client

Zlib-based decompression

Password-protected user levels

Large API to hook the application to facilities provided by monitor

Frame buffer interface, with variable sized fonts and bitmap generation.

Here are a few examples that are simply running uMon scripts:

cogent_demo keypad_demo fbi_demo

Support for Multicast-DNS and IPV4-Local-Link Addressing

Extensive documentation and application examples

CPU ports: PowerPC, MIPS, ARM/Xscale, 68K/ColdFire, Blackfin, SH2, MicroBlaze, Nios

OS boots: VxWorks, Linux, uC/OS-II, eCos, RTEMS, Nucleus, CMX, pSOS, etc...