Suga koubou / Mbed 2 deprecated denki-yohou_b

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。

main.cpp@2:b50c974ed0d5, 2012-07-02 (annotated)

Committer:
okini3939
Date:
Mon Jul 02 16:23:41 2012 +0000
Revision:
2:b50c974ed0d5
Parent:
1:10bd46941b8b
Child:
3:ef5af1e8558d
bugfix;

Who changed what in which revision?

UserRevisionLine numberNew contents of line
okini3939 0:2a2f00cbc761 1 #include "mbed.h"
okini3939 0:2a2f00cbc761 2 #include "EthernetInterface.h"
okini3939 0:2a2f00cbc761 3 #include "TinyHTTP_b.h"
okini3939 0:2a2f00cbc761 4
okini3939 0:2a2f00cbc761 5 // Kansai Electric Power
okini3939 0:2a2f00cbc761 6 #define HTTP_HOST "www.kepco.co.jp"
okini3939 0:2a2f00cbc761 7 #define HTTP_URI "/yamasou/juyo1_kansai.csv"
okini3939 0:2a2f00cbc761 8
okini3939 0:2a2f00cbc761 9 Serial pc(USBTX, USBRX);
okini3939 0:2a2f00cbc761 10 EthernetInterface eth;
okini3939 0:2a2f00cbc761 11
okini3939 0:2a2f00cbc761 12 DigitalOut led1(LED1), led2(LED2), led3(LED3), led4(LED4);
okini3939 0:2a2f00cbc761 13
okini3939 1:10bd46941b8b 14 volatile int denki_flg = 0;
okini3939 2:b50c974ed0d5 15 volatile int denki_capacity = 0;
okini3939 1:10bd46941b8b 16 volatile int denki_usage = 0;
okini3939 1:10bd46941b8b 17 volatile int year, month, day, hour, minute;
okini3939 1:10bd46941b8b 18
okini3939 0:2a2f00cbc761 19
okini3939 0:2a2f00cbc761 20 void callback_denkiyohou (char *buf, int len) {
okini3939 1:10bd46941b8b 21 static int n = 0;
okini3939 1:10bd46941b8b 22 static char data[100];
okini3939 0:2a2f00cbc761 23 int i;
okini3939 0:2a2f00cbc761 24
okini3939 0:2a2f00cbc761 25 for (i = 0; i < len; i ++) {
okini3939 0:2a2f00cbc761 26 if (buf[i] == '\r') continue;
okini3939 0:2a2f00cbc761 27
okini3939 2:b50c974ed0d5 28 if (denki_flg <= 1) {
okini3939 0:2a2f00cbc761 29 // header
okini3939 0:2a2f00cbc761 30 if (buf[i] == '\n') {
okini3939 1:10bd46941b8b 31 n = 0;
okini3939 1:10bd46941b8b 32 denki_flg ++;
okini3939 0:2a2f00cbc761 33 } else {
okini3939 1:10bd46941b8b 34 denki_flg = 0;
okini3939 0:2a2f00cbc761 35 }
okini3939 2:b50c974ed0d5 36 continue;
okini3939 2:b50c974ed0d5 37 }
okini3939 2:b50c974ed0d5 38
okini3939 2:b50c974ed0d5 39 // body
okini3939 2:b50c974ed0d5 40 if (buf[i] == '\n') {
okini3939 2:b50c974ed0d5 41 data[n] = 0;
okini3939 2:b50c974ed0d5 42 switch (denki_flg) {
okini3939 2:b50c974ed0d5 43 case 2:
okini3939 2:b50c974ed0d5 44 // update
okini3939 2:b50c974ed0d5 45 break;
okini3939 2:b50c974ed0d5 46 case 4:
okini3939 2:b50c974ed0d5 47 // capacity
okini3939 2:b50c974ed0d5 48 if (data[0] >= '0' && data[0] <= '9') {
okini3939 2:b50c974ed0d5 49 denki_capacity = atoi(data);
okini3939 2:b50c974ed0d5 50 }
okini3939 2:b50c974ed0d5 51 break;
okini3939 2:b50c974ed0d5 52 case 7:
okini3939 2:b50c974ed0d5 53 // yosou1
okini3939 2:b50c974ed0d5 54 break;
okini3939 2:b50c974ed0d5 55 case 10:
okini3939 2:b50c974ed0d5 56 // yosou2
okini3939 2:b50c974ed0d5 57 break;
okini3939 2:b50c974ed0d5 58 default:
okini3939 2:b50c974ed0d5 59 // text
okini3939 2:b50c974ed0d5 60 if (data[0] == 'D' && data[1] == 'A') {
okini3939 2:b50c974ed0d5 61 denki_flg = denki_flg < 100 ? 100 : 200;
okini3939 2:b50c974ed0d5 62 }
okini3939 2:b50c974ed0d5 63 break;
okini3939 0:2a2f00cbc761 64 }
okini3939 2:b50c974ed0d5 65 if (denki_flg > 200 && data[i - 1] >= '0' && data[i - 1] <= '9') {
okini3939 2:b50c974ed0d5 66 sscanf(data, "%d/%d/%d,%d:%d,%d", &year, &month, &day, &hour, &minute, &denki_usage);
okini3939 2:b50c974ed0d5 67 }
okini3939 2:b50c974ed0d5 68 n = 0;
okini3939 2:b50c974ed0d5 69 denki_flg ++;
okini3939 2:b50c974ed0d5 70 } else {
okini3939 2:b50c974ed0d5 71 // data
okini3939 2:b50c974ed0d5 72 if (n < sizeof(data) - 1) {
okini3939 0:2a2f00cbc761 73 data[n] = buf[i];
okini3939 0:2a2f00cbc761 74 n ++;
okini3939 0:2a2f00cbc761 75 }
okini3939 0:2a2f00cbc761 76 }
okini3939 2:b50c974ed0d5 77
okini3939 0:2a2f00cbc761 78 }
okini3939 0:2a2f00cbc761 79 }
okini3939 0:2a2f00cbc761 80
okini3939 0:2a2f00cbc761 81 int main() {
okini3939 0:2a2f00cbc761 82 Timer timer;
okini3939 0:2a2f00cbc761 83 int flg = 1, r;
okini3939 2:b50c974ed0d5 84 float denki_percentage = 0;
okini3939 0:2a2f00cbc761 85
okini3939 0:2a2f00cbc761 86 pc.baud(115200);
okini3939 0:2a2f00cbc761 87 eth.init(); //Use DHCP
okini3939 0:2a2f00cbc761 88 if (eth.connect()) {
okini3939 0:2a2f00cbc761 89 return -1;
okini3939 0:2a2f00cbc761 90 }
okini3939 0:2a2f00cbc761 91
okini3939 1:10bd46941b8b 92 pc.printf("Denki-yohou: %s\r\n", HTTP_HOST);
okini3939 0:2a2f00cbc761 93
okini3939 0:2a2f00cbc761 94 timer.start();
okini3939 0:2a2f00cbc761 95 while(1) {
okini3939 0:2a2f00cbc761 96 led1 = 1;
okini3939 0:2a2f00cbc761 97
okini3939 0:2a2f00cbc761 98 if (flg || timer.read() >= 300) {
okini3939 0:2a2f00cbc761 99 timer.reset();
okini3939 1:10bd46941b8b 100 denki_flg = 0;
okini3939 0:2a2f00cbc761 101 r = httpRequest(METHOD_GET, HTTP_HOST, 80, HTTP_URI, NULL, NULL, &callback_denkiyohou);
okini3939 0:2a2f00cbc761 102 if (r == 0) {
okini3939 2:b50c974ed0d5 103 denki_percentage = (float)denki_usage / (float)denki_capacity * 100.0;
okini3939 0:2a2f00cbc761 104
okini3939 2:b50c974ed0d5 105 pc.printf("%04d-%02d-%02d %02d:%02d : ", year, month, day, hour, minute);
okini3939 2:b50c974ed0d5 106 pc.printf("%0.1f %%\r\n", denki_percentage);
okini3939 2:b50c974ed0d5 107
okini3939 2:b50c974ed0d5 108 led2 = denki_percentage >= 70 ? 1 : 0;
okini3939 2:b50c974ed0d5 109 led3 = denki_percentage >= 85 ? 1 : 0;
okini3939 2:b50c974ed0d5 110 led4 = denki_percentage >= 95 ? 1 : 0;
okini3939 1:10bd46941b8b 111 } else {
okini3939 1:10bd46941b8b 112 pc.printf("http error\r\n");
okini3939 0:2a2f00cbc761 113 }
okini3939 0:2a2f00cbc761 114 flg = 0;
okini3939 0:2a2f00cbc761 115 }
okini3939 0:2a2f00cbc761 116
okini3939 0:2a2f00cbc761 117 wait(0.1);
okini3939 0:2a2f00cbc761 118 led1 = 0;
okini3939 0:2a2f00cbc761 119 wait(0.9);
okini3939 0:2a2f00cbc761 120 }
okini3939 0:2a2f00cbc761 121 }