<\/p>
Introduction: In a large-scale smart factory, thousands of devices need to transmit data to the cloud platform and receive control commands in real time. How to ensure the reliable transmission of massive data? How to deal with network instability? How to realize the low-power operation of the devices? All of these require the selection of appropriate IoT communication protocols. In this paper, we will introduce the commonly used communication protocols in IoT, including MQTT, CoAP, AMQP and HTTP, etc., analyze their characteristics and application scenarios, and help readers make the best choice of protocols in the actual project.<\/p><\/blockquote>
catalogs<\/h2>
- Overview of IoT protocols<\/a><\/li>\n\n
- MQTT Protocol Explained<\/a><\/li>\n\n
- CoAP Protocol Explained<\/a><\/li>\n\n
- AMQP Protocol Explained<\/a><\/li>\n\n
- HTTP\/HTTPS in the Internet of Things<\/a><\/li>\n\n
- Protocol Selection and Application<\/a><\/li>\n\n
- Best Practices and Case Studies<\/a><\/li>\n\n
- Future Development Trends<\/a><\/li><\/ol>
Overview of IoT protocols<\/h2>
protocol layering<\/h3>
IoT communication protocols can be categorized into the following levels according to the OSI model:<\/p>
- application layer protocol (ALP)<\/strong>
- MQTT: Message Queue Telemetry Transport<\/li>\n\n
- CoAP: Restricted Application Protocol<\/li>\n\n
- AMQP: Advanced Message Queuing Protocol<\/li>\n\n
- HTTP: Hypertext Transfer Protocol<\/li><\/ul><\/li>\n\n
- transport layer protocol<\/strong>
- TCP: Transmission Control Protocol<\/li>\n\n
- UDP: User Datagram Protocol<\/li><\/ul><\/li>\n\n
- network layer protocol<\/strong>
- IPv6: Internet Protocol version 6<\/li>\n\n
- 6LoWPAN: Low Power Wireless Personal Area Networks<\/li><\/ul><\/li><\/ol>
Key technical indicators<\/h3>
The following key metrics need to be considered for selecting an IoT protocol:<\/p>
Technical indicators<\/th> clarification<\/th> significance<\/th><\/tr><\/thead> dependability<\/strong><\/td> Reliability of message transmission<\/td> crux<\/td><\/tr> topicality<\/strong><\/td> Latency level of message transmission<\/td> critical<\/td><\/tr> bandwidth utilization<\/strong><\/td> overhead of the protocol itself<\/td> moderate<\/td><\/tr> Power consumption impact<\/strong><\/td> Impact on equipment battery life<\/td> critical<\/td><\/tr> safety<\/strong><\/td> Security of data transmission<\/td> crux<\/td><\/tr> scalability<\/strong><\/td> Supported device sizes<\/td> critical<\/td><\/tr><\/tbody><\/table><\/figure> MQTT Protocol Explained<\/h2>
basic concept<\/h3>
MQTT (Message Queuing Telemetry Transport) is a lightweight publish-subscribe messaging protocol:<\/p>
- Core features<\/strong>
- Publish\/Subscribe Model<\/li>\n\n
- Supports message QoS<\/li>\n\n
- Support for session hold<\/li>\n\n
- Small transmission overhead<\/li><\/ul><\/li>\n\n
- protocol version<\/strong>
- MQTT 3.1<\/li>\n\n
- MQTT 3.1.1<\/li>\n\n
- MQTT 5.0<\/li><\/ul><\/li><\/ol>
Working Principle<\/h3>
MQTT uses a publish\/subscribe model for messaging:<\/p>
# MQTT communication sample code\nimport paho.mqtt.client as mqtt\n\nclass MQTTHandler.\n def __init__(self).\n self.client = mqtt.\n self.client.on_connect = self.on_connect\n self.client.on_message = self.on_message\n\n def on_connect(self, client, userdata, flags, rc): print(f \"Connected with result\").\n print(f \"Connected with result code {rc}\")\n # Subscribe to a thread\n client.subscribe(\"sensors\/#\")\n\n def on_message(self, client, userdata, msg): print(f \"Received message:\")\n print(f \"Received message: {msg.payload.decode()} on topic {msg.topic}\")\n\n def publish_message(self, topic, message, qos=1): self.client.publish(topic, qos=1).\n self.client.publish(topic, message, qos=qos)\n\n def start(self).\n self.client.connect(\"broker.example.com\", 1883, 60)\n self.client.loop_forever()<\/code><\/pre>QoS mechanism<\/h3>
MQTT provides three quality of service levels:<\/p>
QoS level<\/th> transmission mechanism<\/th> application scenario<\/th><\/tr><\/thead> QoS 0<\/strong><\/td> at most once<\/td> Real-time data acquisition<\/td><\/tr> QoS 1<\/strong><\/td> At least once.<\/td> ordinary messaging<\/td><\/tr> QoS 2<\/strong><\/td> Just once.<\/td> Key directives issued<\/td><\/tr><\/tbody><\/table><\/figure> Thematic design<\/h3>
Best Practices for MQTT Topics:<\/p>
- hierarchy<\/strong>
building\/floor1\/room2\/temperature
building\/floor1\/room2\/humidity<\/code><\/pre>
<\/li>\n\n- wildcard usage<\/strong>
+<\/code>: single-level wildcard<\/li>\n\n#<\/code>: Multi-layer wildcards<\/li><\/ul><\/li>\n\n- naming convention<\/strong>
- Use of meaningful names<\/li>\n\n
- Avoid special characters<\/li>\n\n
- Keeping the hierarchy clear<\/li><\/ul><\/li><\/ol>
security mechanism<\/h3>
- transmission security<\/strong>
- TLS\/SSL encryption<\/li>\n\n
- Certification<\/li>\n\n
- port protection<\/li><\/ul><\/li>\n\n
- access control<\/strong>
- user authentication<\/li>\n\n
- rights management<\/li>\n\n
- Subject Access Control<\/li><\/ul><\/li>\n\n
- Message Security<\/strong>
- Message encryption<\/li>\n\n
- integrity check<\/li>\n\n
- anti-replay protection<\/li><\/ul><\/li><\/ol>
CoAP Protocol Explained<\/h2>
basic concept<\/h3>
CoAP (Constrained Application Protocol) is a protocol designed for resource-constrained devices:<\/p>
- Core features<\/strong>
- UDP-based<\/li>\n\n
- REST architecture<\/li>\n\n
- Lightweight design<\/li>\n\n
- Supports reliable transmission<\/li><\/ul><\/li>\n\n
- Protocol Characteristics<\/strong>
- binary format<\/li>\n\n
- asynchronous message interaction<\/li>\n\n
- Resource discovery mechanisms<\/li><\/ul><\/li><\/ol>
message model<\/h3>
CoAP supports four message types:<\/p>
# CoAP\u6d88\u606f\u5904\u7406\u793a\u4f8b\nclass CoAPMessage:\n def __init__(self):\n self.message_types = {\n 'CON': 0, # Confirmable\n 'NON': 1, # Non-confirmable\n 'ACK': 2, # Acknowledgement\n 'RST': 3 # Reset\n }\n \n def create_message(self, type_name, code, payload):\n msg_type = self.message_types[type_name]\n message_id = self.generate_message_id()\n return {\n 'type': msg_type,\n 'code': code,\n 'message_id': message_id,\n 'payload': payload\n }\n \n def handle_response(self, message):\n if message['type'] == self.message_types['CON']:\n self.send_ack(message['message_id'])\n self.process_payload(message['payload'])<\/code><\/pre>resource model<\/h3>
- resource operation<\/strong>
- GET: Get Resources<\/li>\n\n
- POST: Creating a resource<\/li>\n\n
- PUT: update resources<\/li>\n\n
- DELETE: Delete resources<\/li><\/ul><\/li>\n\n
- Resource Discovery<\/strong>
- Resource Catalog Support<\/li>\n\n
- Resource Description Format<\/li>\n\n
- Dynamic resource registration<\/li><\/ul><\/li><\/ol>
reliable transmission<\/h3>
machine<\/th> clarification<\/th> application scenario<\/th><\/tr><\/thead> news recirculated<\/strong><\/td> Retransmission when ACK not received<\/td> Important Message Transmission<\/td><\/tr> Message de-duplication<\/strong><\/td> Avoiding duplication of processing<\/td> All Scenes<\/td><\/tr> message acknowledgment<\/strong><\/td> Acknowledgement of message reception<\/td> Reliable transmission requirements<\/td><\/tr><\/tbody><\/table><\/figure> AMQP Protocol Explained<\/h2>
basic concept<\/h3>
AMQP (Advanced Message Queuing Protocol) is an open standard messaging middleware protocol:<\/p>
- Core features<\/strong>
- Advanced Message Queuing<\/li>\n\n
- Transaction support<\/li>\n\n
- reliable transmission<\/li>\n\n
- Flexible Routing<\/li><\/ul><\/li>\n\n
- protocol component<\/strong>
- Exchange switches<\/li>\n\n
- Queue<\/li>\n\n
- Binding Binding Relationship<\/li><\/ul><\/li><\/ol>
Message Routing<\/h3>
# AMQP Routing Example\nclass AMQPRouter.\n def __init__(self).\n self.exchange_types = {\n \n \n \n 'headers': 'header matching'\n }\n\n def setup_exchange(self, exchange_name, exchange_type).\n # Create the exchange\n channel.exchange_declare(\n exchange=exchange_name,\n exchange_type=exchange_type\n )\n\n def bind_queue(self, queue_name, exchange_name, routing_key):\n # bind queue\n channel.queue_bind(\n queue=queue_name,\n exchange=exchange_name,\n routing_key=routing_key\n )<\/code><\/pre>Transactional mechanisms<\/h3>
- transaction operation<\/strong>
- Commencement of business<\/li>\n\n
- Messaging<\/li>\n\n
- Transaction commit\/rollback<\/li><\/ul><\/li>\n\n
- Recognition mechanism<\/strong>
- Release Confirmation<\/li>\n\n
- Consumption confirmation<\/li>\n\n
- Batch Confirmation<\/li><\/ul><\/li><\/ol>
HTTP\/HTTPS in the Internet of Things<\/h2>
basic concept<\/h3>
- equipment management<\/strong>
- Configuration issuance<\/li>\n\n
- Firmware Updates<\/li>\n\n
- Status Query<\/li><\/ul><\/li>\n\n
- Data reporting<\/strong>
- Batch data upload<\/li>\n\n
- file transfer<\/li>\n\n
- Log reporting<\/li><\/ul><\/li><\/ol>
RESTful API Design<\/h3>
# RESTful API\u793a\u4f8b\nfrom flask import Flask, request\napp = Flask(__name__)\n@app.route('\/api\/v1\/devices\/\/data', methods=['POST'])\ndef upload_data(device_id):\n data = request.get_json()\n # \u5904\u7406\u8bbe\u5907\u6570\u636e\n return {\n 'status': 'success',\n 'device_id': device_id,\n 'message': 'Data received successfully'\n }\n@app.route('\/api\/v1\/devices\/ \/config', methods=['GET'])\ndef get_config(device_id):\n # \u83b7\u53d6\u8bbe\u5907\u914d\u7f6e\n config = load_device_config(device_id)\n return config<\/code><\/pre> Long Connection Optimization<\/h3>
- connection reuse<\/strong>
- Keep-Alive<\/li>\n\n
- connection pool<\/li>\n\n
- Session maintenance<\/li><\/ul><\/li>\n\n
- data compression<\/strong>
- GZIP compression<\/li>\n\n
- Data Packaging<\/li>\n\n
- incremental update<\/li><\/ul><\/li><\/ol>
Protocol Selection and Application<\/h2>
Selection Considerations<\/h3>
considerations<\/th> MQTT<\/th> CoAP<\/th> AMQP<\/th> HTTP<\/th><\/tr><\/thead> Bandwidth consumption<\/strong><\/td> lower (one's head)<\/td> extremely low<\/td> center<\/td> your (honorific)<\/td><\/tr> topicality<\/strong><\/td> your (honorific)<\/td> your (honorific)<\/td> center<\/td> lower (one's head)<\/td><\/tr> dependability<\/strong><\/td> your (honorific)<\/td> center<\/td> your (honorific)<\/td> your (honorific)<\/td><\/tr> complexity theory<\/strong><\/td> lower (one's head)<\/td> lower (one's head)<\/td> your (honorific)<\/td> center<\/td><\/tr> safety<\/strong><\/td> your (honorific)<\/td> center<\/td> your (honorific)<\/td> your (honorific)<\/td><\/tr> scalability<\/strong><\/td> your (honorific)<\/td> center<\/td> your (honorific)<\/td> center<\/td><\/tr><\/tbody><\/table><\/figure> Application Scenario Matching<\/h3>
- Device Data Acquisition<\/strong>
- Preferred: MQTT<\/li>\n\n
- Option: CoAP<\/li>\n\n
- Reason: low overhead, high real-time<\/li><\/ul><\/li>\n\n
- Key directives issued<\/strong>
- Preferred: MQTT (QoS 2)<\/li>\n\n
- Option: AMQP<\/li>\n\n
- Reason: High reliability, transaction support<\/li><\/ul><\/li>\n\n
- Firmware Upgrade<\/strong>
- Preferred: HTTP\/HTTPS<\/li>\n\n
- Option: MQTT<\/li>\n\n
- Reason: Large file transfers, disconnected transfers<\/li><\/ul><\/li>\n\n
- edge computing<\/strong>
- Preferred: CoAP<\/li>\n\n
- Option: MQTT<\/li>\n\n
- Reason: lightweight, suitable for resource-constrained devices<\/li><\/ul><\/li><\/ol>
Best Practices and Case Studies<\/h2>
protocol coexistence scheme<\/h3>
# Multi-Protocol Support Example\nclass IoTProtocolHandler.\n def __init__(self).\n self.mqtt_client = MQTTHandler()\n self.mqtt_client = MQTTHandler(): self.coap_client = CoAPHandler()\n self.http_client = HTTPHandler()\n\n def send_data(self, data, protocol='mqtt'): if protocol == 'mqtt'\n if protocol == 'mqtt'.\n self.mqtt_client.publish_data(data)\n elif protocol == 'coap': self.coap_client.\n self.coap_client.send_data(data)\n elif protocol == 'http'.\n self.http_client.post_data(data)\n\n def receive_command(self, callback).\n # Register for multi-protocol command processing\n self.mqtt_client.on_command(callback)\n self.coap_client.on_command(callback)<\/code><\/pre>Practical case studies<\/h3>
Case: In a smart factory project, a multi-protocol architecture is used to realize device communication. MQTT protocol is used for real-time data collection and control command issuance, CoAP protocol is used to connect sensor nodes with limited resources, and HTTP protocol is used for device management and firmware update. In the year since the system went online, the average equipment online rate reached 99.9%, and the data transmission success rate reached 99.99%, effectively supporting the intelligent transformation of the factory.<\/p><\/blockquote>
Future Development Trends<\/h2>
technological evolution<\/h3>
- protocol convergence<\/strong>
- Increased interoperability between protocols<\/li>\n\n
- Unified Messaging Model<\/li>\n\n
- Intelligent Protocol Selection<\/li><\/ul><\/li>\n\n
- performance enhancement<\/strong>
- Lower transmission latency<\/li>\n\n
- Higher throughput capacity<\/li>\n\n
- Greater reliability<\/li><\/ul><\/li>\n\n
- security enhancement<\/strong>
- end-to-end encryption<\/li>\n\n
- Zero Trust Architecture<\/li>\n\n
- Blockchain Integration<\/li><\/ul><\/li><\/ol>
Emerging Applications<\/h3>
- edge computing<\/strong>
- Local data processing<\/li>\n\n
- real time response<\/li>\n\n
- Bandwidth Optimization<\/li><\/ul><\/li>\n\n
- 5G integration<\/strong>
- ultra-low latency<\/li>\n\n
- huge amount of connections<\/li>\n\n
- high reliability<\/li><\/ul><\/li><\/ol>
summarize<\/h2>
IoT communication protocols are the key to realize the interoperability of devices. protocols such as MQTT, CoAP, AMQP and HTTP have their own characteristics and need to be selected according to the specific application scenarios. In actual projects, it is often necessary to use multiple protocols together to meet the needs of different scenarios. With the development of technology, the protocol will evolve in the direction of more intelligent, secure and efficient.<\/p>","protected":false},"excerpt":{"rendered":"
\u5bfc\u8bed\uff1a\u5728\u4e00\u4e2a\u5927\u578b\u667a\u6167\u5de5\u5382\u4e2d\uff0c\u6570\u5343\u53f0\u8bbe\u5907\u9700\u8981\u5b9e\u65f6\u5411\u4e91\u5e73\u53f0\u4f20\u8f93\u6570\u636e\u5e76\u63a5\u6536\u63a7\u5236\u6307\u4ee4\u3002\u5982\u4f55\u786e\u4fdd\u6d77\u91cf\u6570\u636e\u7684\u53ef\u9760\u4f20\u8f93\uff1f\u5982\u4f55<\/p>","protected":false},"author":2,"featured_media":15553,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[356],"tags":[538,519,778],"class_list":["post-15545","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-iot","tag-coap","tag-mqtt","tag-778"],"acf":[],"yoast_head":"\n
\u7269\u8054\u7f51\u7f51\u7edc\u534f\u8bae\u8be6\u89e3\uff1a\u6253\u9020\u9ad8\u6548\u53ef\u9760\u7684\u8bbe\u5907\u901a\u4fe1\u65b9\u6848 \u6253\u9020\u9ad8\u6548\u53ef\u9760\u7684\u8bbe\u5907\u901a\u4fe1\u65b9\u6848<\/title>\n<meta name=\"description\" content=\"\u5de5\u4e1a\u7269\u8054\u7f51\u8bbe\u5907\u4f9b\u5e94\u5546-\u6d77\u5357\u4e16\u7535\u79d1\u6280 - \u7269\u8054\u7f51\u7f51\u7edc\u534f\u8bae\u8be6\u89e3\uff1a\u6253\u9020\u9ad8\u6548\u53ef\u9760\u7684\u8bbe\u5907\u901a\u4fe1\u65b9\u6848\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/store.west-hn.com\/en\/iot-network-protocols-wp\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"\u7269\u8054\u7f51\u7f51\u7edc\u534f\u8bae\u8be6\u89e3\uff1a\u6253\u9020\u9ad8\u6548\u53ef\u9760\u7684\u8bbe\u5907\u901a\u4fe1\u65b9\u6848 \u6253\u9020\u9ad8\u6548\u53ef\u9760\u7684\u8bbe\u5907\u901a\u4fe1\u65b9\u6848\" \/>\n<meta property=\"og:description\" content=\"\u5de5\u4e1a\u7269\u8054\u7f51\u8bbe\u5907\u4f9b\u5e94\u5546-\u6d77\u5357\u4e16\u7535\u79d1\u6280 - \u7269\u8054\u7f51\u7f51\u7edc\u534f\u8bae\u8be6\u89e3\uff1a\u6253\u9020\u9ad8\u6548\u53ef\u9760\u7684\u8bbe\u5907\u901a\u4fe1\u65b9\u6848\" \/>\n<meta property=\"og:url\" content=\"https:\/\/store.west-hn.com\/en\/iot-network-protocols-wp\/\" \/>\n<meta property=\"og:site_name\" content=\"\u5de5\u4e1a\u7269\u8054\u7f51\u8bbe\u5907\u4f9b\u5e94\u5546-\u6d77\u5357\u4e16\u7535\u79d1\u6280\" \/>\n<meta property=\"article:published_time\" content=\"2025-02-21T04:20:35+00:00\" \/>\n<meta property=\"article:modified_time\" content=\"2025-07-02T07:45:12+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/store.west-hn.com\/wp-content\/uploads\/2025\/02\/08-iot-network-protocols-wp.jpeg\" \/>\n\t<meta property=\"og:image:width\" content=\"1024\" \/>\n\t<meta property=\"og:image:height\" content=\"1024\" \/>\n\t<meta property=\"og:image:type\" content=\"image\/jpeg\" \/>\n<meta name=\"author\" content=\"\u4e16\u7535 IOT\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:label1\" content=\"Written by\" \/>\n\t<meta name=\"twitter:data1\" content=\"\u4e16\u7535 IOT\" \/>\n\t<meta name=\"twitter:label2\" content=\"Est. reading time\" \/>\n\t<meta name=\"twitter:data2\" content=\"2 minutes\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\/\/schema.org\",\"@graph\":[{\"@type\":\"Article\",\"@id\":\"https:\/\/store.west-hn.com\/iot-network-protocols-wp\/#article\",\"isPartOf\":{\"@id\":\"https:\/\/store.west-hn.com\/iot-network-protocols-wp\/\"},\"author\":{\"name\":\"\u4e16\u7535 IOT\",\"@id\":\"https:\/\/store.west-hn.com\/#\/schema\/person\/d45439903b5e44c9b15d5b4fafee9444\"},\"headline\":\"\u7269\u8054\u7f51\u7f51\u7edc\u534f\u8bae\u8be6\u89e3\uff1a\u6253\u9020\u9ad8\u6548\u53ef\u9760\u7684\u8bbe\u5907\u901a\u4fe1\u65b9\u6848\",\"datePublished\":\"2025-02-21T04:20:35+00:00\",\"dateModified\":\"2025-07-02T07:45:12+00:00\",\"mainEntityOfPage\":{\"@id\":\"https:\/\/store.west-hn.com\/iot-network-protocols-wp\/\"},\"wordCount\":89,\"publisher\":{\"@id\":\"https:\/\/store.west-hn.com\/#organization\"},\"image\":{\"@id\":\"https:\/\/store.west-hn.com\/iot-network-protocols-wp\/#primaryimage\"},\"thumbnailUrl\":\"https:\/\/store.west-hn.com\/wp-content\/uploads\/2025\/02\/08-iot-network-protocols-wp.jpeg\",\"keywords\":[\"CoAP\",\"MQTT\",\"\u7269\u8054\u7f51\u534f\u8bae\"],\"articleSection\":[\"\u77e5\u8bc6\u79d1\u666e\"],\"inLanguage\":\"en-US\"},{\"@type\":\"WebPage\",\"@id\":\"https:\/\/store.west-hn.com\/iot-network-protocols-wp\/\",\"url\":\"https:\/\/store.west-hn.com\/iot-network-protocols-wp\/\",\"name\":\"\u7269\u8054\u7f51\u7f51\u7edc\u534f\u8bae\u8be6\u89e3\uff1a\u6253\u9020\u9ad8\u6548\u53ef\u9760\u7684\u8bbe\u5907\u901a\u4fe1\u65b9\u6848 \u6253\u9020\u9ad8\u6548\u53ef\u9760\u7684\u8bbe\u5907\u901a\u4fe1\u65b9\u6848\",\"isPartOf\":{\"@id\":\"https:\/\/store.west-hn.com\/#website\"},\"primaryImageOfPage\":{\"@id\":\"https:\/\/store.west-hn.com\/iot-network-protocols-wp\/#primaryimage\"},\"image\":{\"@id\":\"https:\/\/store.west-hn.com\/iot-network-protocols-wp\/#primaryimage\"},\"thumbnailUrl\":\"https:\/\/store.west-hn.com\/wp-content\/uploads\/2025\/02\/08-iot-network-protocols-wp.jpeg\",\"datePublished\":\"2025-02-21T04:20:35+00:00\",\"dateModified\":\"2025-07-02T07:45:12+00:00\",\"description\":\"\u5de5\u4e1a\u7269\u8054\u7f51\u8bbe\u5907\u4f9b\u5e94\u5546-\u6d77\u5357\u4e16\u7535\u79d1\u6280 - \u7269\u8054\u7f51\u7f51\u7edc\u534f\u8bae\u8be6\u89e3\uff1a\u6253\u9020\u9ad8\u6548\u53ef\u9760\u7684\u8bbe\u5907\u901a\u4fe1\u65b9\u6848\",\"breadcrumb\":{\"@id\":\"https:\/\/store.west-hn.com\/iot-network-protocols-wp\/#breadcrumb\"},\"inLanguage\":\"en-US\",\"potentialAction\":[{\"@type\":\"ReadAction\",\"target\":[\"https:\/\/store.west-hn.com\/iot-network-protocols-wp\/\"]}]},{\"@type\":\"ImageObject\",\"inLanguage\":\"en-US\",\"@id\":\"https:\/\/store.west-hn.com\/iot-network-protocols-wp\/#primaryimage\",\"url\":\"https:\/\/store.west-hn.com\/wp-content\/uploads\/2025\/02\/08-iot-network-protocols-wp.jpeg\",\"contentUrl\":\"https:\/\/store.west-hn.com\/wp-content\/uploads\/2025\/02\/08-iot-network-protocols-wp.jpeg\",\"width\":1024,\"height\":1024,\"caption\":\"ot-network-protocols-wp\"},{\"@type\":\"BreadcrumbList\",\"@id\":\"https:\/\/store.west-hn.com\/iot-network-protocols-wp\/#breadcrumb\",\"itemListElement\":[{\"@type\":\"ListItem\",\"position\":1,\"name\":\"\u9996\u9875\",\"item\":\"https:\/\/store.west-hn.com\/\"},{\"@type\":\"ListItem\",\"position\":2,\"name\":\"\u77e5\u8bc6\u79d1\u666e\",\"item\":\"https:\/\/store.west-hn.com\/category\/iot\/\"},{\"@type\":\"ListItem\",\"position\":3,\"name\":\"\u7269\u8054\u7f51\u7f51\u7edc\u534f\u8bae\u8be6\u89e3\uff1a\u6253\u9020\u9ad8\u6548\u53ef\u9760\u7684\u8bbe\u5907\u901a\u4fe1\u65b9\u6848\"}]},{\"@type\":\"WebSite\",\"@id\":\"https:\/\/store.west-hn.com\/#website\",\"url\":\"https:\/\/store.west-hn.com\/\",\"name\":\"\u5de5\u4e1a\u7269\u8054\u7f51\u8bbe\u5907\u4f9b\u5e94\u5546-\u6d77\u5357\u4e16\u7535\u79d1\u6280\",\"description\":\"\u9ad8\u7cbe\u5ea6\u5ba4\u5185\u5b9a\u4f4d\uff0c\u4f20\u611f\u5668\uff0c\u5de5\u4e1a\u6570\u636e\u4f20\u8f93\uff0c\u7269\u8054\u7f51\u8bbe\u5907\u4f9b\u5e94\u5546\",\"publisher\":{\"@id\":\"https:\/\/store.west-hn.com\/#organization\"},\"potentialAction\":[{\"@type\":\"SearchAction\",\"target\":{\"@type\":\"EntryPoint\",\"urlTemplate\":\"https:\/\/store.west-hn.com\/?s={search_term_string}\"},\"query-input\":{\"@type\":\"PropertyValueSpecification\",\"valueRequired\":true,\"valueName\":\"search_term_string\"}}],\"inLanguage\":\"en-US\"},{\"@type\":\"Organization\",\"@id\":\"https:\/\/store.west-hn.com\/#organization\",\"name\":\"\u6d77\u5357\u4e16\u7535\u79d1\u6280\u6709\u9650\u516c\u53f8\",\"url\":\"https:\/\/store.west-hn.com\/\",\"logo\":{\"@type\":\"ImageObject\",\"inLanguage\":\"en-US\",\"@id\":\"https:\/\/store.west-hn.com\/#\/schema\/logo\/image\/\",\"url\":\"https:\/\/store.west-hn.com\/wp-content\/uploads\/2022\/05\/seo_logo2.jpg\",\"contentUrl\":\"https:\/\/store.west-hn.com\/wp-content\/uploads\/2022\/05\/seo_logo2.jpg\",\"width\":201,\"height\":133,\"caption\":\"\u6d77\u5357\u4e16\u7535\u79d1\u6280\u6709\u9650\u516c\u53f8\"},\"image\":{\"@id\":\"https:\/\/store.west-hn.com\/#\/schema\/logo\/image\/\"}},{\"@type\":\"Person\",\"@id\":\"https:\/\/store.west-hn.com\/#\/schema\/person\/d45439903b5e44c9b15d5b4fafee9444\",\"name\":\"\u4e16\u7535 IOT\",\"image\":{\"@type\":\"ImageObject\",\"inLanguage\":\"en-US\",\"@id\":\"https:\/\/store.west-hn.com\/#\/schema\/person\/image\/\",\"url\":\"https:\/\/secure.gravatar.com\/avatar\/e36daf34ebf64654074b1821e9e85401d0d1be357aade9289d97edeee1dd7668?s=96&d=mm&r=g\",\"contentUrl\":\"https:\/\/secure.gravatar.com\/avatar\/e36daf34ebf64654074b1821e9e85401d0d1be357aade9289d97edeee1dd7668?s=96&d=mm&r=g\",\"caption\":\"\u4e16\u7535 IOT\"},\"url\":\"https:\/\/store.west-hn.com\/en\/author\/bread\/\"}]}<\/script>\n<!-- \/ Yoast SEO plugin. -->","yoast_head_json":{"title":"\u7269\u8054\u7f51\u7f51\u7edc\u534f\u8bae\u8be6\u89e3\uff1a\u6253\u9020\u9ad8\u6548\u53ef\u9760\u7684\u8bbe\u5907\u901a\u4fe1\u65b9\u6848 \u6253\u9020\u9ad8\u6548\u53ef\u9760\u7684\u8bbe\u5907\u901a\u4fe1\u65b9\u6848","description":"\u5de5\u4e1a\u7269\u8054\u7f51\u8bbe\u5907\u4f9b\u5e94\u5546-\u6d77\u5357\u4e16\u7535\u79d1\u6280 - \u7269\u8054\u7f51\u7f51\u7edc\u534f\u8bae\u8be6\u89e3\uff1a\u6253\u9020\u9ad8\u6548\u53ef\u9760\u7684\u8bbe\u5907\u901a\u4fe1\u65b9\u6848","robots":{"index":"index","follow":"follow","max-snippet":"max-snippet:-1","max-image-preview":"max-image-preview:large","max-video-preview":"max-video-preview:-1"},"canonical":"https:\/\/store.west-hn.com\/en\/iot-network-protocols-wp\/","og_locale":"en_US","og_type":"article","og_title":"\u7269\u8054\u7f51\u7f51\u7edc\u534f\u8bae\u8be6\u89e3\uff1a\u6253\u9020\u9ad8\u6548\u53ef\u9760\u7684\u8bbe\u5907\u901a\u4fe1\u65b9\u6848 \u6253\u9020\u9ad8\u6548\u53ef\u9760\u7684\u8bbe\u5907\u901a\u4fe1\u65b9\u6848","og_description":"\u5de5\u4e1a\u7269\u8054\u7f51\u8bbe\u5907\u4f9b\u5e94\u5546-\u6d77\u5357\u4e16\u7535\u79d1\u6280 - \u7269\u8054\u7f51\u7f51\u7edc\u534f\u8bae\u8be6\u89e3\uff1a\u6253\u9020\u9ad8\u6548\u53ef\u9760\u7684\u8bbe\u5907\u901a\u4fe1\u65b9\u6848","og_url":"https:\/\/store.west-hn.com\/en\/iot-network-protocols-wp\/","og_site_name":"\u5de5\u4e1a\u7269\u8054\u7f51\u8bbe\u5907\u4f9b\u5e94\u5546-\u6d77\u5357\u4e16\u7535\u79d1\u6280","article_published_time":"2025-02-21T04:20:35+00:00","article_modified_time":"2025-07-02T07:45:12+00:00","og_image":[{"width":1024,"height":1024,"url":"https:\/\/store.west-hn.com\/wp-content\/uploads\/2025\/02\/08-iot-network-protocols-wp.jpeg","type":"image\/jpeg"}],"author":"\u4e16\u7535 IOT","twitter_card":"summary_large_image","twitter_misc":{"Written by":"\u4e16\u7535 IOT","Est. reading time":"2 minutes"},"schema":{"@context":"https:\/\/schema.org","@graph":[{"@type":"Article","@id":"https:\/\/store.west-hn.com\/iot-network-protocols-wp\/#article","isPartOf":{"@id":"https:\/\/store.west-hn.com\/iot-network-protocols-wp\/"},"author":{"name":"\u4e16\u7535 IOT","@id":"https:\/\/store.west-hn.com\/#\/schema\/person\/d45439903b5e44c9b15d5b4fafee9444"},"headline":"\u7269\u8054\u7f51\u7f51\u7edc\u534f\u8bae\u8be6\u89e3\uff1a\u6253\u9020\u9ad8\u6548\u53ef\u9760\u7684\u8bbe\u5907\u901a\u4fe1\u65b9\u6848","datePublished":"2025-02-21T04:20:35+00:00","dateModified":"2025-07-02T07:45:12+00:00","mainEntityOfPage":{"@id":"https:\/\/store.west-hn.com\/iot-network-protocols-wp\/"},"wordCount":89,"publisher":{"@id":"https:\/\/store.west-hn.com\/#organization"},"image":{"@id":"https:\/\/store.west-hn.com\/iot-network-protocols-wp\/#primaryimage"},"thumbnailUrl":"https:\/\/store.west-hn.com\/wp-content\/uploads\/2025\/02\/08-iot-network-protocols-wp.jpeg","keywords":["CoAP","MQTT","\u7269\u8054\u7f51\u534f\u8bae"],"articleSection":["\u77e5\u8bc6\u79d1\u666e"],"inLanguage":"en-US"},{"@type":"WebPage","@id":"https:\/\/store.west-hn.com\/iot-network-protocols-wp\/","url":"https:\/\/store.west-hn.com\/iot-network-protocols-wp\/","name":"\u7269\u8054\u7f51\u7f51\u7edc\u534f\u8bae\u8be6\u89e3\uff1a\u6253\u9020\u9ad8\u6548\u53ef\u9760\u7684\u8bbe\u5907\u901a\u4fe1\u65b9\u6848 \u6253\u9020\u9ad8\u6548\u53ef\u9760\u7684\u8bbe\u5907\u901a\u4fe1\u65b9\u6848","isPartOf":{"@id":"https:\/\/store.west-hn.com\/#website"},"primaryImageOfPage":{"@id":"https:\/\/store.west-hn.com\/iot-network-protocols-wp\/#primaryimage"},"image":{"@id":"https:\/\/store.west-hn.com\/iot-network-protocols-wp\/#primaryimage"},"thumbnailUrl":"https:\/\/store.west-hn.com\/wp-content\/uploads\/2025\/02\/08-iot-network-protocols-wp.jpeg","datePublished":"2025-02-21T04:20:35+00:00","dateModified":"2025-07-02T07:45:12+00:00","description":"\u5de5\u4e1a\u7269\u8054\u7f51\u8bbe\u5907\u4f9b\u5e94\u5546-\u6d77\u5357\u4e16\u7535\u79d1\u6280 - \u7269\u8054\u7f51\u7f51\u7edc\u534f\u8bae\u8be6\u89e3\uff1a\u6253\u9020\u9ad8\u6548\u53ef\u9760\u7684\u8bbe\u5907\u901a\u4fe1\u65b9\u6848","breadcrumb":{"@id":"https:\/\/store.west-hn.com\/iot-network-protocols-wp\/#breadcrumb"},"inLanguage":"en-US","potentialAction":[{"@type":"ReadAction","target":["https:\/\/store.west-hn.com\/iot-network-protocols-wp\/"]}]},{"@type":"ImageObject","inLanguage":"en-US","@id":"https:\/\/store.west-hn.com\/iot-network-protocols-wp\/#primaryimage","url":"https:\/\/store.west-hn.com\/wp-content\/uploads\/2025\/02\/08-iot-network-protocols-wp.jpeg","contentUrl":"https:\/\/store.west-hn.com\/wp-content\/uploads\/2025\/02\/08-iot-network-protocols-wp.jpeg","width":1024,"height":1024,"caption":"ot-network-protocols-wp"},{"@type":"BreadcrumbList","@id":"https:\/\/store.west-hn.com\/iot-network-protocols-wp\/#breadcrumb","itemListElement":[{"@type":"ListItem","position":1,"name":"\u9996\u9875","item":"https:\/\/store.west-hn.com\/"},{"@type":"ListItem","position":2,"name":"\u77e5\u8bc6\u79d1\u666e","item":"https:\/\/store.west-hn.com\/category\/iot\/"},{"@type":"ListItem","position":3,"name":"\u7269\u8054\u7f51\u7f51\u7edc\u534f\u8bae\u8be6\u89e3\uff1a\u6253\u9020\u9ad8\u6548\u53ef\u9760\u7684\u8bbe\u5907\u901a\u4fe1\u65b9\u6848"}]},{"@type":"WebSite","@id":"https:\/\/store.west-hn.com\/#website","url":"https:\/\/store.west-hn.com\/","name":"Industrial Internet of Things equipment suppliers-Hainan Shidian Technology Co.","description":"High Precision Indoor Positioning, Sensors, Industrial Data Transmission, IoT Device Provider","publisher":{"@id":"https:\/\/store.west-hn.com\/#organization"},"potentialAction":[{"@type":"SearchAction","target":{"@type":"EntryPoint","urlTemplate":"https:\/\/store.west-hn.com\/?s={search_term_string}"},"query-input":{"@type":"PropertyValueSpecification","valueRequired":true,"valueName":"search_term_string"}}],"inLanguage":"en-US"},{"@type":"Organization","@id":"https:\/\/store.west-hn.com\/#organization","name":"Hainan Shidian Technology Co.","url":"https:\/\/store.west-hn.com\/","logo":{"@type":"ImageObject","inLanguage":"en-US","@id":"https:\/\/store.west-hn.com\/#\/schema\/logo\/image\/","url":"https:\/\/store.west-hn.com\/wp-content\/uploads\/2022\/05\/seo_logo2.jpg","contentUrl":"https:\/\/store.west-hn.com\/wp-content\/uploads\/2022\/05\/seo_logo2.jpg","width":201,"height":133,"caption":"\u6d77\u5357\u4e16\u7535\u79d1\u6280\u6709\u9650\u516c\u53f8"},"image":{"@id":"https:\/\/store.west-hn.com\/#\/schema\/logo\/image\/"}},{"@type":"Person","@id":"https:\/\/store.west-hn.com\/#\/schema\/person\/d45439903b5e44c9b15d5b4fafee9444","name":"\u4e16\u7535 IOT","image":{"@type":"ImageObject","inLanguage":"en-US","@id":"https:\/\/store.west-hn.com\/#\/schema\/person\/image\/","url":"https:\/\/secure.gravatar.com\/avatar\/e36daf34ebf64654074b1821e9e85401d0d1be357aade9289d97edeee1dd7668?s=96&d=mm&r=g","contentUrl":"https:\/\/secure.gravatar.com\/avatar\/e36daf34ebf64654074b1821e9e85401d0d1be357aade9289d97edeee1dd7668?s=96&d=mm&r=g","caption":"\u4e16\u7535 IOT"},"url":"https:\/\/store.west-hn.com\/en\/author\/bread\/"}]}},"_links":{"self":[{"href":"https:\/\/store.west-hn.com\/en\/wp-json\/wp\/v2\/posts\/15545","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/store.west-hn.com\/en\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/store.west-hn.com\/en\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/store.west-hn.com\/en\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/store.west-hn.com\/en\/wp-json\/wp\/v2\/comments?post=15545"}],"version-history":[{"count":10,"href":"https:\/\/store.west-hn.com\/en\/wp-json\/wp\/v2\/posts\/15545\/revisions"}],"predecessor-version":[{"id":16278,"href":"https:\/\/store.west-hn.com\/en\/wp-json\/wp\/v2\/posts\/15545\/revisions\/16278"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/store.west-hn.com\/en\/wp-json\/wp\/v2\/media\/15553"}],"wp:attachment":[{"href":"https:\/\/store.west-hn.com\/en\/wp-json\/wp\/v2\/media?parent=15545"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/store.west-hn.com\/en\/wp-json\/wp\/v2\/categories?post=15545"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/store.west-hn.com\/en\/wp-json\/wp\/v2\/tags?post=15545"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}