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Novel Internet of Things communication protocol
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A communication protocol and Internet of Things technology, which is applied in the field of new Internet of Things communication protocols, can solve problems such as unusable protocols, high requirements for transmission protocol hardware resources, etc., and achieve the effect of ensuring efficiency and flexible networking
Inactive Publication Date: 2019-12-10
帷幄匠心科技(杭州)有限公司
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[0003] Based on existing network protocols such as TCP or UDP, certain encapsulation is applied to IoT devices, such as MQTT, COAP, AMQP and other protocols. The main defect is that its heavy transmission protocol has high requirements for hardware resources. Compared with Some MCUs with less hardware resources cannot use these protocols
If they need to communicate with each other, there is no proper protocol to do it
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Embodiment 1
[0048] Embodiment one, with reference to figure 1 , Figure 4 and Figure 5 , a new communication protocol for the Internet of Things, including: a Hub and multiple MCUs;
[0049] Multiple MCUs are connected in series through serial ports, and the Hub is connected to multiple MCUs in series;
[0050] The Hub can set up unicast and multicast for multiple MCUs.
[0051] Multiple MCUs include two serial ports, wherein one serial port of the MCU is an uplink serial port, and the other serial port of the MCU is a downlink serial port.
[0052] The Hub is a multi-port transponder. When the Hub is the central device, even if a certain line in the network fails, it will not affect the work of other lines.
[0053] The protocol composition includes: packet header, packet length, ID, command, total packet, packet index, content and check digit.
[0073] Embodiment two, refer to figure 2 and image 3 , the Hub allocates communication addresses for multiple MCUs, and the allocation IDs are 1, 2, 3, 4, 5, 6, 7, and 8, respectively, to ensure that the ID of the SN in this LAN is unique, and the MCU with ID 8 needs to transmit information The MCU transmits the message through MCUs with IDs 7, 6, 5, 4, 3, 2, and 1 in sequence, and finally transmits the message to the Hub;
[0074] Send the message from the MCU with ID 7 to the MCU with ID 4, set the address in the message to 4, the message sent by the MCU with ID 7 is transmitted through the MCUs with ID 6 and 5 in sequence, and the message is forwarded When the MCU with the ID of 4 stops forwarding, the MCU with the ID of 4 receives the message sent from the MCU with the ID of 7.
[0075] Set the target addresses of MCUs with IDs 1 and 2 as FF01, set the target addresses of MCUs with IDs 3, 4, and 5 as FF02, and set the target addresses of MCUs with IDs 6, 7, and 8 as FF...
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Abstract
The invention discloses a novel Internet of Things communication protocol, which comprises a Hub and a plurality of MCUs, the plurality of MCUs are connected in series through serial ports, the Hub isconnected with the plurality of MCUs connected in series, and the Hub can set unicast and multicast for the plurality of MCUs. According to the invention, a lightweight Internet of Things communication protocol is provided, and communication between hardware devices with less hardware resources can be realized. Any light-weight MCU can be accessed according to the protocol, dynamic ID distribution is realized, networking is flexible, and a plurality of MCUs can be controlled at the same time. According to the novel Internet of Things communication protocol, the MCUs can communicate with eachother, the optimal MTU can be negotiated according to the processing capacity of the different MCUs, the efficiency is guaranteed, an inspection and retransmission mechanism exists between the messages, and it is guaranteed that each packet can accurately reach the destination address.
Description
technical field [0001] The invention relates to the technical field of Internet of Things communication protocols, in particular to a novel Internet of Things communication protocol. Background technique [0002] In order to allow data sharing and interconnection between different devices, the Internet of Things communication protocol can integrate the system commonality of similar Internet of Things device manufacturers and redefine the functions, so as to achieve information sharing and data reading between different systems. Access and controllable data writing, control and other functions. [0003] Based on existing network protocols such as TCP or UDP, certain encapsulation is applied to IoT devices, such as MQTT, COAP, AMQP and other protocols. The main defect is that its heavy transmission protocol has high requirements for hardware resources. Compared with Some MCUs with less hardware resources cannot use these protocols. If they need to communicate with each other...
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Application Information
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