Suga koubou
Kansai Electric Power usage meter (Denki-yohou)
Dependencies: mbed mbed-rtos EthernetInterface
関西電力 でんき予報メーター
関電のでんき予報のリアルタイム値（使用電力状況データ CSV ）をもとに、mbedのLEDを点灯させます。
そのほかの情報はこちらへ： http://mbed.org/users/okini3939/notebook/denki-yohou/
Import programdenki-yohou_b
Kansai Electric Power usage meter (Denki-yohou)
Last commit 03 Jul 2012 by 
Suga koubou
- LED1 動作中表示
- LED2 70%以上
- LED3 85%以上
- LED4 95%以上
新しい Ethernet Interface ライブラリと、独自の Tiny HTTP クライアント ライブラリを使っています。
CSVの解析処理をはしょって改行を頼りにしているので、CSVファイルの構造が変わるとうまく動かなくなります。
東電でも同様に使えると思います。
Diff: main.cpp
- Revision:
- 3:ef5af1e8558d
- Parent:
- 2:b50c974ed0d5
--- a/main.cpp Mon Jul 02 16:23:41 2012 +0000
+++ b/main.cpp Tue Jul 03 00:32:27 2012 +0000
@@ -1,121 +1,123 @@
-#include "mbed.h"
-#include "EthernetInterface.h"
-#include "TinyHTTP_b.h"
-
-// Kansai Electric Power
-#define HTTP_HOST "www.kepco.co.jp"
-#define HTTP_URI "/yamasou/juyo1_kansai.csv"
-
-Serial pc(USBTX, USBRX);
-EthernetInterface eth;
-
-DigitalOut led1(LED1), led2(LED2), led3(LED3), led4(LED4);
-
-volatile int denki_flg = 0;
-volatile int denki_capacity = 0;
-volatile int denki_usage = 0;
-volatile int year, month, day, hour, minute;
-
-
-void callback_denkiyohou (char *buf, int len) {
- static int n = 0;
- static char data[100];
- int i;
-
- for (i = 0; i < len; i ++) {
- if (buf[i] == '\r') continue;
-
- if (denki_flg <= 1) {
- // header
- if (buf[i] == '\n') {
- n = 0;
- denki_flg ++;
- } else {
- denki_flg = 0;
- }
- continue;
- }
-
- // body
- if (buf[i] == '\n') {
- data[n] = 0;
- switch (denki_flg) {
- case 2:
- // update
- break;
- case 4:
- // capacity
- if (data[0] >= '0' && data[0] <= '9') {
- denki_capacity = atoi(data);
- }
- break;
- case 7:
- // yosou1
- break;
- case 10:
- // yosou2
- break;
- default:
- // text
- if (data[0] == 'D' && data[1] == 'A') {
- denki_flg = denki_flg < 100 ? 100 : 200;
- }
- break;
- }
- if (denki_flg > 200 && data[i - 1] >= '0' && data[i - 1] <= '9') {
- sscanf(data, "%d/%d/%d,%d:%d,%d", &year, &month, &day, &hour, &minute, &denki_usage);
- }
- n = 0;
- denki_flg ++;
- } else {
- // data
- if (n < sizeof(data) - 1) {
- data[n] = buf[i];
- n ++;
- }
- }
-
- }
-}
-
-int main() {
- Timer timer;
- int flg = 1, r;
- float denki_percentage = 0;
-
- pc.baud(115200);
- eth.init(); //Use DHCP
- if (eth.connect()) {
- return -1;
- }
-
- pc.printf("Denki-yohou: %s\r\n", HTTP_HOST);
-
- timer.start();
- while(1) {
- led1 = 1;
-
- if (flg || timer.read() >= 300) {
- timer.reset();
- denki_flg = 0;
- r = httpRequest(METHOD_GET, HTTP_HOST, 80, HTTP_URI, NULL, NULL, &callback_denkiyohou);
- if (r == 0) {
- denki_percentage = (float)denki_usage / (float)denki_capacity * 100.0;
-
- pc.printf("%04d-%02d-%02d %02d:%02d : ", year, month, day, hour, minute);
- pc.printf("%0.1f %%\r\n", denki_percentage);
-
- led2 = denki_percentage >= 70 ? 1 : 0;
- led3 = denki_percentage >= 85 ? 1 : 0;
- led4 = denki_percentage >= 95 ? 1 : 0;
- } else {
- pc.printf("http error\r\n");
- }
- flg = 0;
- }
-
- wait(0.1);
- led1 = 0;
- wait(0.9);
- }
-}
+#include "mbed.h"
+#include "EthernetInterface.h"
+#include "TinyHTTP_b.h"
+
+// Kansai Electric Power
+#define HTTP_HOST "www.kepco.co.jp"
+#define HTTP_URI "/yamasou/juyo1_kansai.csv"
+
+Serial pc(USBTX, USBRX);
+EthernetInterface eth;
+
+DigitalOut led1(LED1);
+PwmOut led2(LED2), led3(LED3), led4(LED4);
+
+volatile int denki_flg = 0;
+volatile int denki_capacity = 0;
+volatile int denki_usage = 0;
+volatile int year, month, day, hour, minute;
+
+
+void callback_denkiyohou (char *buf, int len) {
+ static int n = 0;
+ static char data[100];
+ int i;
+
+ for (i = 0; i < len; i ++) {
+ if (buf[i] == '\r') continue;
+
+ if (denki_flg <= 1) {
+ // header
+ if (buf[i] == '\n') {
+ n = 0;
+ denki_flg ++;
+ } else {
+ denki_flg = 0;
+ }
+ continue;
+ }
+
+ // body
+ if (buf[i] == '\n') {
+ data[n] = 0;
+ switch (denki_flg) {
+ case 2:
+ // update
+ break;
+ case 4:
+ // capacity
+ if (data[0] >= '0' && data[0] <= '9') {
+ denki_capacity = atoi(data);
+ }
+ break;
+ case 7:
+ // yosou1
+ break;
+ case 10:
+ // yosou2
+ break;
+ default:
+ // text
+ if (data[0] == 'D' && data[1] == 'A') {
+ denki_flg = denki_flg < 100 ? 100 : 200;
+ }
+ break;
+ }
+ if (denki_flg > 200 && data[n - 1] >= '0' && data[n - 1] <= '9') {
+ sscanf(data, "%d/%d/%d,%d:%d,%d", &year, &month, &day, &hour, &minute, &denki_usage);
+ }
+ n = 0;
+ denki_flg ++;
+ } else {
+ // data
+ if (n < sizeof(data) - 1) {
+ data[n] = buf[i];
+ n ++;
+ }
+ }
+
+ }
+}
+
+int main() {
+ Timer timer;
+ int flg = 1, r;
+ float denki_percentage = 0;
+
+ pc.baud(115200);
+ eth.init(); //Use DHCP
+ if (eth.connect()) {
+ return -1;
+ }
+
+ pc.printf("Denki-yohou: %s\r\n", HTTP_HOST);
+
+ timer.start();
+ while(1) {
+ led1 = 1;
+
+ if (flg || timer.read() >= 180) { // 3min
+ timer.reset();
+ denki_flg = 0;
+ r = httpRequest(METHOD_GET, HTTP_HOST, 80, HTTP_URI, NULL, NULL, &callback_denkiyohou);
+ if (r == 0) {
+ denki_percentage = (float)denki_usage / (float)denki_capacity * 100.0;
+
+ pc.printf("%04d-%02d-%02d %02d:%02d :", year, month, day, hour, minute);
+ pc.printf(" %d0 MW / %d0 MW", denki_usage, denki_capacity);
+ pc.printf(" (%0.1f %%)\r\n", denki_percentage);
+
+ led2 = denki_percentage >= 70 ? (denki_percentage >= 77.5 ? 1 : 0.5) : 0;
+ led3 = denki_percentage >= 85 ? (denki_percentage >= 90 ? 1 : 0.5) : 0;
+ led4 = denki_percentage >= 95 ? (denki_percentage >= 97 ? 1 : 0.5) : 0;
+ } else {
+ pc.printf("http error\r\n");
+ }
+ flg = 0;
+ }
+
+ wait(0.1);
+ led1 = 0;
+ wait(0.9);
+ }
+}