🚰🔌 水电表 OCR

1 IC每次请求

✅ 活跃🏙️ 智慧城市

水表 OCR 是艾艾普科技的一项 AI 服务，可自动读取和数字化水表和电表读数。该服务可以检测并提取圆形和矩形表盘上的数字。

立即试用！

Example Images (Click to try)

API Key

Log in to use your API keys or Create an account

Endpoint URL

cURL Command

Upload Image

入门指南

1. 先决条件

   • 来自艾艾普科技的 API 密钥
   • 清晰的水表/电表图片
   • Internet 连接

2. 快速入门

   • 快速抄表识别
   • 支持多种表盘类型
   • 简单的 REST API 接口

3. 主要功能

   • 自动抄表检测
   • 高精度数字识别
   • 快速响应时间
   • 易于集成

4. 安全与合规

   • 符合 GDPR 和 PDPA
   • 处理后不保留数据

如何获取 API 密钥？

请访问 API 密钥管理 页面查看您现有的 API 密钥或申请新的密钥。

API 端点

端点	方法	描述	费用
/v3/store/smart-city/power-meter-and-water-meter 旧版: /meter-number-ocr	POST	从电表/水表提取读数	每次请求 1 IC
/v3/store/smart-city/power-meter-and-water-meter/file 旧版: /meter-number-ocr/file	POST	从表盘图片文件提取读数	每次请求 1 IC
/v3/store/smart-city/power-meter-and-water-meter/base64 旧版: /meter-number-ocr/base64	POST	从 base64 编码的表盘图片提取读数	每次请求 1 IC

示例

现实应用中的电表和水表

1. 圆形表盘水表

示例 1

示例 2

2. 矩形表盘水表

请求

curl --location --request POST 'https://api.iapp.co.th/meter-number-ocr/file' \
--header 'apikey: ----Your API Key----' \
--form 'file=@"/Users/id_1016_value_367_003.jpg"'

响应

{
    "infer_time": 0.16,
    "label": "024963",
    "message": "success",
    "status": 200
}

功能与能力

核心功能

• 自动检测表盘（圆形和矩形）
• 高精度数字识别
• 处理速度快
• 支持多种图片格式

支持的字段

• 表盘读数数字
• 表盘类型检测

API 参考

端点

POST https://api.iapp.co.th/meter-number-ocr/file

请求头

名称	类型	描述
apikey	string	您的 API 密钥

请求正文

名称	类型	描述
file	image	清晰的表盘图片

代码示例

Python

import requests

url = "https://api.iapp.co.th/meter-number-ocr/file"

payload = {}
files=[
  ('file',('{YOUR UPLOADED FILE NAME}',open('{YOUR UPLOADED FILE PATH}','rb'),'image/png'))
]
headers = {
  'apikey': '{YOUR_API_KEY}'
}

response = requests.request("POST", url, headers=headers, data=payload, files=files)

print(response.text)

JavaScript

const axios = require('axios');
const FormData = require('form-data');
const fs = require('fs');
let data = new FormData();
data.append('file', fs.createReadStream('{YOUR UPLOADED FILE PATH}'));

let config = {
  method: 'post',
  maxBodyLength: Infinity,
  url: 'https://api.iapp.co.th/meter-number-ocr/file',
  headers: {
    'apikey': '{YOUR_API_KEY}',
    ...data.getHeaders()
  },
  data : data
};

axios.request(config)
.then((response) => {
  console.log(JSON.stringify(response.data));
})
.catch((error) => {
  console.log(error);
});

PHP

<?php

$curl = curl_init();

curl_setopt_array($curl, array(
  CURLOPT_URL => 'https://api.iapp.co.th/meter-number-ocr/file',
  CURLOPT_RETURNTRANSFER => true,
  CURLOPT_ENCODING => '',
  CURLOPT_MAXREDIRS => 10,
  CURLOPT_TIMEOUT => 0,
  CURLOPT_FOLLOWLOCATION => true,
  CURLHTTP_VERSION_1_1,
  CURLOPT_CUSTOMREQUEST => 'POST',
  CURLOPT_POSTFIELDS => array('file'=> new CURLFILE('{YOUR UPLOADED FILE PATH}')),
  CURLOPT_HTTPHEADER => array(
    'apikey: {YOUR_API_KEY}'
  ),
));

$response = curl_exec($curl);

curl_close($curl);
echo $response;

Swift

let parameters = [
  [
    "key": "file",
    "src": "{YOUR UPLOADED FILE PATH}",
    "type": "file"
  ]] as [[String: Any]]

let boundary = "Boundary-\(UUID().uuidString)"
var body = Data()
var error: Error? = nil
for param in parameters {
  if param["disabled"] != nil { continue }
  let paramName = param["key"]!
  body += Data("--\(boundary)\r\n".utf8)
  body += Data("Content-Disposition:form-data; name=\"\(paramName)\"".utf8)
  if param["contentType"] != nil {
    body += Data("\r\nContent-Type: \(param["contentType"] as! String)".utf8)
  }
  let paramType = param["type"] as! String
  if paramType == "text" {
    let paramValue = param["value"] as! String
    body += Data("\r\n\r\n\(paramValue)\r\n".utf8)
  } else {
    let paramSrc = param["src"] as! String
    let fileURL = URL(fileURLWithPath: paramSrc)
    if let fileContent = try? Data(contentsOf: fileURL) {
      body += Data("; filename=\"\(paramSrc)\"\r\n".utf8)
      body += Data("Content-Type: \"content-type header\"\r\n".utf8)
      body += Data("\r\n".utf8)
      body += fileContent
      body += Data("\r\n".utf8)
    }
  }
}
body += Data("--\(boundary)--\r\n".utf8);
let postData = body


var request = URLRequest(url: URL(string: "https://api.iapp.co.th/meter-number-ocr/file")!,timeoutInterval: Double.infinity)
request.addValue("{YOUR_API_KEY}", forHTTPHeaderField: "apikey")
request.addValue("multipart/form-data; boundary=\(boundary)", forHTTPHeaderField: "Content-Type")

request.httpMethod = "POST"
request.httpBody = postData

let task = URLSession.shared.dataTask(with: request) { data, response, error in
  guard let data = data else {
    print(String(describing: error))
    return
  }
  print(String(data: data, encoding: .utf8)!)
}

task.resume()

Kotlin

val client = OkHttpClient()
val mediaType = "text/plain".toMediaType()
val body = MultipartBody.Builder().setType(MultipartBody.FORM)
  .addFormDataPart("file","{YOUR UPLOADED FILE NAME}",
    File("{YOUR UPLOADED FILE PATH}").asRequestBody("application/octet-stream".toMediaType()))
  .build()
val request = Request.Builder()
  .url("https://api.iapp.co.th/meter-number-ocr/file")
  .post(body)
  .addHeader("apikey", "{YOUR_API_KEY}")
  .build()
val response = client.newCall(request).execute()

Java

OkHttpClient client = new OkHttpClient().newBuilder()
  .build();
MediaType mediaType = MediaType.parse("text/plain");
RequestBody body = new MultipartBody.Builder().setType(MultipartBody.FORM)
  .addFormDataPart("file","{YOUR UPLOADED FILE NAME}",
    RequestBody.create(MediaType.parse("application/octet-stream"),
    new File("{YOUR UPLOADED FILE PATH}")))
  .build();
Request request = new Request.Builder()
  .url("https://api.iapp.co.th/meter-number-ocr/file")
  .method("POST", body)
  .addHeader("apikey", "{YOUR_API_KEY}")
  .build();
Response response = client.newCall(request).execute();

Dart

var headers = {
  'apikey': '{YOUR_API_KEY}'
};
var request = http.MultipartRequest('POST', Uri.parse('https://api.iapp.co.th/meter-number-ocr/file'));
request.files.add(await http.MultipartFile.fromPath('file', '{YOUR UPLOADED FILE PATH}'));
request.headers.addAll(headers);

http.StreamedResponse response = await request.send();

if (response.statusCode == 200) {
  print(await response.stream.bytesToString());
}
else {
  print(response.reasonPhrase);
}

准确性和性能

评估基于矩形和圆形表盘的水表图像数据（107 张图片）

模型评估

模型	描述	准确率 (%)
水表检测模型	从输入图像中检测水表	96.22
OCR 模型	识别数字	76.47
整体准确率	系统的整体准确率	73.58

字符评估

数字	总数	正确数	准确率 (%)
0	197	188	95.43
1	85	80	94.12
2	58	53	91.38
3	69	63	91.3
4	65	62	95.38
5	57	50	87.72
6	51	43	84.31
7	52	48	92.31
8	48	40	83.33
9	59	50	84.75

基于数字正确检测的整体准确率 = 90 %

历史/变更日志

版本 1.0 - 2021-10-05

新增

• 推出艾艾普科技的水表 OCR
• 支持所有类型的水表表盘

版本 1.1 - 2021-12-02

修复

• 检测同一 x 坐标上的 2 位数字
• 准确率从 62.26% 提高到 73.58%

代码示例

Curl

curl -X POST https://api.iapp.co.th/v3/store/smart-city/meter-reading \
    -H "apikey: YOUR_API_KEY" \
    -F "file=@/path/to/meter.jpg"

Python

import requests

url = "https://api.iapp.co.th/v3/store/smart-city/meter-reading"
files = {"file": ("("/path/to/meter.jpg", "rb"))}
headers = {"apikey": "YOUR_API_KEY"}

response = requests.post(url, headers=headers, files=files)
print(response.json())

JavaScript

const axios = require("axios");
const FormData = require("form-data");
const fs = require("fs");

let data = new FormData();
data.append("file", fs.createReadStream("/path/to/meter.jpg"));

let config = {
    method: "post",
    url: "https://api.iapp.co.th/v3/store/smart-city/meter-reading",
    headers: {
        apikey: "YOUR_API_KEY",
        ...data.getHeaders(),
    },
    data: data,
};

axios(config)
    .then((response) => console.log(response.data))
    .catch((error) => console.log(error));

PHP

<?php
$curl = curl_init();

curl_setopt_array($curl, array(
    CURLOPT_URL => 'https://api.iapp.co.th/v3/store/smart-city/meter-reading',
    CURLOPT_RETURNTRANSFER => true,
    CURLOPT_POST => true,
    CURLOPT_POSTFIELDS => array(
        'file'=> new CURLFILE('/path/to/meter.jpg')
    ),
    CURLOPT_HTTPHEADER => array(
        'apikey: YOUR_API_KEY'
    ),
));

$response = curl_exec($curl);
curl_close($curl);
echo $response;
?>

Swift

import Foundation

let url = URL(string: "https://api.iapp.co.th/v3/store/smart-city/meter-reading")!
var request = URLRequest(url: url)
request.httpMethod = "POST"
request.addValue("YOUR_API_KEY", forHTTPHeaderField: "apikey")

let boundary = "Boundary-\(UUID().uuidString)"
request.setValue("multipart/form-data; boundary=\(boundary)", forHTTPHeaderField: "Content-Type")

var body = Data()
body.append("--\(boundary)\r\n".data(using: .utf8)!)
body.append("Content-Disposition: form-data; name=\"file\"; filename=\"file.jpg\"\r\n".data(using: .utf8)!)
body.append("Content-Type: image/jpeg\r\n\r\n".data(using: .utf8)!)

if let fileData = try? Data(contentsOf: URL(fileURLWithPath: "/path/to/meter.jpg")) {
    body.append(fileData)
}
body.append("\r\n--\(boundary)--\r\n".data(using: .utf8)!)

request.httpBody = body

let task = URLSession.shared.dataTask(with: request) { data, response, error in
    if let data = data {
        print(String(data: data, encoding: .utf8)!)
    }
}
task.resume()

Kotlin

import okhttp3.*
import okhttp3.MediaType.Companion.toMediaTypeOrNull
import okhttp3.RequestBody.Companion.asRequestBody
import java.io.File

val client = OkHttpClient()

val file = File("/path/to/meter.jpg")
val requestBody = MultipartBody.Builder()
    .setType(MultipartBody.FORM)
    .addFormDataPart("file", file.name, file.asRequestBody("image/jpeg".toMediaTypeOrNull()))
    .build()

val request = Request.Builder()
    .url("https://api.iapp.co.th/v3/store/smart-city/meter-reading")
    .addHeader("apikey", "YOUR_API_KEY")
    .post(requestBody)
    .build()

client.newCall(request).execute().use { response ->
    println(response.body?.string())
}

Java

import okhttp3.*;
import java.io.File;

OkHttpClient client = new OkHttpClient();

File file = new File("/path/to/meter.jpg");

RequestBody requestBody = new MultipartBody.Builder()
    .setType(MultipartBody.FORM)
    .addFormDataPart("file", file.getName(),
        RequestBody.create(MediaType.parse("image/jpeg"), file))
    .build();

Request request = new Request.Builder()
    .url("https://api.iapp.co.th/v3/store/smart-city/meter-reading")
    .addHeader("apikey", "YOUR_API_KEY")
    .post(requestBody)
    .build();

try (Response response = client.newCall(request).execute()) {
    System.out.println(response.body().string());
}

Dart

import 'package:http/http.dart' as http;

var request = http.MultipartRequest(
    'POST',
    Uri.parse('https://api.iapp.co.th/v3/store/smart-city/meter-reading')
);

request.files.add(await http.MultipartFile.fromPath(
    'file',
    '/path/to/meter.jpg'
));

request.headers.addAll({
    'apikey': 'YOUR_API_KEY'
});

var response = await request.send();
var responseBody = await response.stream.bytesToString();
print(responseBody);

定价

AI API 服务名称	每次请求 IC	本地部署
水电表 OCR	1 IC/请求	联系我们