WO2020244175A1

WO2020244175A1 - T-net all-standard single-line multi-source data acquisition and transmission system

Info

Publication number: WO2020244175A1
Application number: PCT/CN2019/121391
Authority: WO
Inventors: 匡俊华; 邓微微; 高伟; 陈胤先
Original assignee: 北京京投卓越科技发展有限公司; 北京京投信安科技发展有限公司; 匡俊华; 邓微微; 高伟; 陈胤先
Priority date: 2019-06-05
Filing date: 2019-11-28
Publication date: 2020-12-10
Also published as: JP2021521661A; JP7084593B2; CN110166340A

Abstract

The present invention relates to the field of industrial buses, and in particular, to a T-NET full-standard single-line multi-source data acquisition and transmission system. The T-NET full-standard single-line multi-source data acquisition and transmission system is a high-performance Internet of Things bus system. The system is a high-integration chip development and design system based on the Internet of Things ad-hoc network technology, and comprises a CCO Internet of Things central controller having two Internet of Things communication modules and an STA communication node, and the Internet of Things communication modules are equipped with high-integration chips. The T-NET full-system single-line multi-source data acquisition and transmission system can effectively overcome adverse effects caused by channel change and signal distortion brought by connection topological structures, and can effectively filter time-varying noises and interferences generated by devices in a line; the number of switches can be increased or decreased at will, and the network can be automatically discovered and updated; intelligent acquisition, analysis and feedback are realized, and reliable encrypted transmission is achieved.

Description

T-NET full-standard single-line multi-source data acquisition and transmission system

This application claims the priority of an invention patent application filed with the Chinese Patent Office on June 5, 2019, the application number is 201910484183.1, and the invention title is "T-NET full-standard single-line multi-source data acquisition and transmission system", the entire content of which is incorporated by reference In this application.

Technical field

The invention relates to the field of industrial buses, in particular to a T-NET full-standard single-wire multi-source data acquisition and transmission system.

Background technique

The existing wired communication can be divided into baseband communication and carrier communication. Baseband communication is a form of communication transmission that uses time-domain pulse symbols of binary or multi-level levels (PAM3, PAM5, etc.) as the basic information unit, typically Ethernet, 485 and similar control bus transmission forms. Carrier communication is a multi-channel communication technology developed based on frequency division multiplexing technology. Generally carrier communication is divided into narrowband carrier and broadband carrier.

Wired channel connection forms are based on bus type and point-to-point type, as well as derivative star type, tree type, daisy chain type and grid type. The bus type means that all communication nodes are connected to the same physical line. In short, a main line is used to connect each node nearby with a branch. Point-to-point type means that a communication line connects only two endpoints. Ethernet is a typical one. Each port of the switch is connected to only one terminal device through a dedicated line.

For the Internet of Things with a large number of nodes in a local area, the bus-shaped topology is simple and direct, which is the optimal wiring method; while the star connection greatly increases the total length of the cable and the wiring is complicated; at the same time, broadband carrier technology is the solution to complex wiring An effective way to connect topological relationships.

Bus-type and point-to-point baseband communication cannot meet the current development trend of the Internet of Things.

Point-to-point connection, baseband communication can reach a very high rate but not suitable for networking. Ethernet is a good representative. Gigabit Ethernet can reach a transmission speed of 1000Mbps at a distance of 100 meters. It makes full use of technologies such as equalization compensation, clock recovery, and adaptive filtering. However, the point-to-point type has great limitations. It can only support point-to-point transmission. The bus line has a large number of branches and connectors, and the line impedance changes complex, which will generate complex reflections and multipath signals. The baseband filtering and equalization technology cannot effectively deal with it. This is also the reason why the point-to-point communication Ethernet cannot work on the point-to-multipoint bus.

Bus type connection, baseband communication can only realize low-rate transmission. Baseband bus communication including 485, Can, 1553B, Modbus, Profit-Bus has the following limitations:

1) Receiving requires high signal-to-noise ratio: baseband communication uses the level of distinguishing steps as the receiving decision condition, and the requirements for signal-to-noise ratio are high, requiring a signal-to-noise ratio of more than 40dB;

2) Short communication distance: Due to the high threshold of the received signal-to-noise ratio, it is sensitive to the attenuation of signal transmission and the transmission distance is limited, usually within a distance of 100 meters;

3) Low communication rate: Due to insufficient support for the bus topology and high requirements for the received signal-to-noise ratio, its communication bandwidth is greatly restricted. The communication rate of less than 1Mbps is usually provided when multiple nodes are connected within a range of tens of meters.

Current bus application status: RS-485, MOD-BUS, PROFI-BUS and other bus technologies are commonly used in industrial control. CAN bus technology is used for vehicles with high requirements for real-time control. The military industry is mainly 1553B bus technology.

At present, various domestic bus application bottlenecks: communication distance <100 meters; communication speed <1Mbps; number of network nodes <128.

Summary of the invention

The purpose of the present invention is to provide a T-NET full-standard single-wire multi-source data acquisition and transmission system to solve the problems encountered in the application of the existing wired communication technology in the Internet of Things.

The technical solution adopted by the present invention to solve the above-mentioned technical problems is: T-NET full-standard single-wire multi-source data acquisition and transmission system is a high-performance Internet of Things bus system, which is developed and designed based on a highly integrated chip based on Internet of Things self-organizing technology A system designed to solve the problems encountered in the application of existing wired communication technology in the Internet of Things.

The T-NET full-standard single-wire multi-source data acquisition and transmission system includes two IoT communication modules, the CCO IoT central controller and the STA communication node. The IoT communication module is equipped with a highly integrated chip.

The IoT communication module CCO IoT central controller and STA communication node have the following characteristics:

The communication transmission rate is 0.5M～3Mbps, the maximum communication distance can reach 2000 meters, and the large network capacity can support up to 65536 nodes;

The receiving sensitivity reaches -85dBm, which has good adaptability to a variety of complex channels and noise suppression capabilities;

It can share AC and DC power supply lines as transmission channels without special wiring, which saves wiring costs and facilitates construction. The cable types support power twisted pair, coaxial, telephone lines, etc.;

Support self-organizing network technology, with automatic node discovery and automatic network access functions;

Adopt multi-hop relay routing technology, support dynamic routing management, and further improve network communication capabilities;

32-bit MCU processor, 64MB memory, support Linux operating system;

Support AES-128bit encryption, cloud management, remote diagnosis, online upgrade;

Can deal with various complex line topology scenarios, including bus type, tree type, star type, grid type, etc.

The length*width*height of the CCO IoT central controller is 111.5mm*96.4mm*18mm, and the length*width*height of the STA communication node is 71.9mm*40.6mm*18mm.

The highly integrated chip is based on the highly integrated, highly reliable Internet of Things and the new control bus chip for broadband and high-speed communication on a two-core cable, which integrates analog front-end transceivers, baseband modulation and demodulation, digital signal processing, MCU core control and peripheral interfaces The functions are integrated to provide complete communication solutions such as the physical layer, media access layer, and application layer, and provide reliable, safe and efficient communication and control physical connection channels for the Internet of Everything.

Based on the highly integrated chip-based CCO IoT central controller and STA communication nodes, bus-type, tree-type topology scenarios such as T-NET full-standard single-wire multi-source data acquisition and transmission system have been developed, which can develop suitable for the Internet of Things and industrial control bus applications The physical layer, link layer and network layer protocols of the company; R&D and production of related communication and network chips and SoC systems; provide application solutions and services for different scenarios and industries.

T-NET full-standard single-wire multi-source data acquisition and transmission system uses existing or dedicated wiring to achieve communication between nodes, and has considerable bandwidth, supports the transmission of real-time large-capacity information, and can effectively cope with the reality of uneven line quality Circumstances, it can effectively overcome the adverse effects of channel changes and signal distortion caused by various connection topologies, and can effectively filter time-varying noise and interference generated by various devices in the line; all nodes are automatically connected based on the connection. Form a network that can communicate with each other, and establish a communication path between any two nodes that do not have a direct path through other connected intermediate nodes. The core is that the nodes can be connected to any position on the power supply line according to the needs of users, and they can be added or added at will Reduce or switch, the network can be automatically discovered and updated; realization of intelligence includes automatic collection, analysis and feedback of terminal information, as well as seamless access and control by users anytime and anywhere through the Internet and mobile terminals; due to the above Internet of Things Extensive connectivity, networking and intelligent features, its security must be guaranteed, to be able to confirm the identity of network nodes and users, not to be counterfeited, to protect communication content from being stolen and not tampered with. The security mechanism 128-bit AES realizes reliable encrypted transmission.

The positive effect of the present invention is that the T-NET full-standard single-line multi-source data acquisition and transmission system can effectively overcome the adverse effects of channel changes and signal distortion caused by various connection topologies, and can effectively filter out various devices in the line The generated time-varying noise and interference; it can be added or reduced or switched at will, and the network can automatically discover and update; realize intelligent collection, analysis and feedback, and realize reliable encrypted transmission.

Description of the drawings

Figure 1 is a block diagram of the principle block diagram of the CCO IoT central controller of the T-NET full-standard single-wire multi-source data acquisition and transmission system;

Figure 2 is the block diagram of the STA communication node of the T-NET full-standard single-wire multi-source data acquisition and transmission system;

Figure 3 is a schematic diagram of a typical application of T-NET full-standard single-wire multi-source data acquisition and transmission system;

Figure 4 is a bus topology diagram that can be realized by the T-NET full-standard single-wire multi-source data acquisition and transmission system;

Figure 5 is a tree topology diagram that can be realized by the T-NET full-standard single-wire multi-source data acquisition and transmission system.

Detailed ways

Example 1

The embodiments of the present invention will be described below with reference to FIG. 3.

The T-NET full-standard single-wire multi-source data acquisition and transmission system is a high-performance Internet of Things bus system. It is a system based on the development and design of highly integrated chips based on the Internet of Things self-organizing network technology. It aims to solve the existing wired communication technology. Problems encountered in the application of the Internet of Things.

The communication transmission rate is 0.5Mbps, the maximum communication distance can reach 2000 meters, and the large network capacity can support up to 65536 nodes;

32-bit MCU processor, 64MB memory, support Linux operating system;

Support AES-128bit encryption, support cloud management, remote diagnosis, online upgrade;

Example 2

The embodiments of the present invention will be described below with reference to FIG. 4.

The communication transmission rate is 2Mbps, the maximum communication distance can reach 2000 meters, and the large network capacity can support up to 65536 nodes;

32-bit MCU processor, 64MB memory, support Linux operating system;

Based on the highly integrated chip-based CCO IoT central controller and STA communication node, a bus-type topology scenario, namely the T-NET full-standard single-wire multi-source data acquisition and transmission system has been developed, which can develop physical layers suitable for IoT and industrial control bus applications. Link layer and network layer protocols; R&D and production of related communication and network chips and SoC systems; provide application solutions and services for different scenarios and industries.

The T-NET full-standard single-line multi-source data acquisition and transmission system can effectively overcome the adverse effects of channel changes and signal distortions caused by various connection topologies, and can effectively filter out time-varying noise and time-varying noise generated by various devices in the line. Interference; can be added or reduced or switched at will, and the network can be automatically discovered and updated; realize intelligent collection, analysis and feedback, and realize reliable encrypted transmission.

Example 3

The embodiments of the present invention will be described below with reference to FIG. 5.

The communication transmission rate is 3Mbps, the maximum communication distance can reach 2000 meters, and the large network capacity can support up to 65536 nodes;

32-bit MCU processor, memory 64MB, support Linux operating system;

The highly integrated chip is based on the highly integrated, highly reliable Internet of Things and the new control bus chip for broadband high-speed communication on a two-core cable, which integrates analog front-end transceiver, baseband modulation and demodulation, digital signal processing, MCU core control and peripheral interfaces The functions are integrated to provide complete communication solutions such as the physical layer, media access layer, and application layer, and provide reliable, safe and efficient communication and control physical connection channels for the Internet of Everything.

Based on the highly integrated chip-based CCO IoT central controller and STA communication nodes, a tree-type topology scenario has been developed, namely T-NET full-standard single-wire multi-source data acquisition and transmission system, which can develop physical layers suitable for IoT and industrial control bus applications. Link layer and network layer protocols; R&D and production of related communication and network chips and SoC systems; provide application solutions and services for different scenarios and industries.

The above are only the preferred embodiments of the present invention. It should be understood that the description of the above embodiments is only used to help understand the method and core idea of the present invention, and is not used to limit the protection scope of the present invention. Any modifications, equivalent replacements, etc. made within the ideas and principles of the present invention shall be included in the protection scope of the present invention.

Claims

T-NET full-standard single-wire multi-source data acquisition and transmission system is characterized by: T-NET full-standard single-wire multi-source data acquisition and transmission system includes two Internet of things communication modules CCO Internet of Things central controller and STA communication node, Internet of Things communication The module is equipped with a highly integrated chip.
The T-NET full-standard single-wire multi-source data acquisition and transmission system according to claim 1, wherein the central controller of the Internet of Things communication module CCO Internet of Things has the following characteristics:

a) The communication transmission rate is 0.5M～3Mbps, the maximum communication distance can reach 2000 meters, and the large network capacity can support up to 65536 nodes;

b) The receiving sensitivity is up to -85dBm, which has good adaptability to a variety of complex channels and noise suppression capabilities;

c) AC and DC power supply lines can be shared as transmission channels, no special wiring is required, which saves wiring costs and is convenient for construction. The cable types support power twisted pair, coaxial, telephone lines, etc.;

d) Support self-organizing network technology, with automatic node discovery and automatic network access functions;

e) Adopt multi-hop relay routing technology, support dynamic routing management, and further improve network communication capabilities;

f) 32-bit MCU processor, 64MB memory, supporting Linux operating system;

g) Support AES-128bit encryption, cloud management, remote diagnosis, online upgrade;

h) Can deal with various complex line topology scenarios, including bus type, tree type, star type, grid type, etc.;

i) The length*width*height of the CCO IoT Central Controller is 111.5mm*96.4mm*18mm.
The T-NET full-standard single-wire multi-source data acquisition and transmission system according to claim 1, wherein the communication node of the IoT communication module STA has the following characteristics:

a) The communication transmission rate is 0.5M～3Mbps, the maximum communication distance can reach 2000 meters, and the large network capacity can support up to 65536 nodes;

b) The receiving sensitivity is up to -85dBm, which has good adaptability to a variety of complex channels and noise suppression capabilities;

c) AC and DC power supply lines can be shared as transmission channels, no special wiring is required, which saves wiring costs and is convenient for construction. The cable types support power twisted pair, coaxial, telephone lines, etc.;

d) Support self-organizing network technology, with automatic node discovery and automatic network access functions;

e) Adopt multi-hop relay routing technology, support dynamic routing management, and further improve network communication capabilities;

f) 32-bit MCU processor, 64MB memory, supporting Linux operating system;

g) Support AES-128bit encryption, cloud management, remote diagnosis, online upgrade;

h) It can handle various complex line topology scenarios, including bus type, tree type, star type, grid type, etc.

i) The length*width*height of the STA communication node of the IoT communication module is 71.9mm*40.6mm*18mm.
The T-NET full-standard single-wire multi-source data acquisition and transmission system according to claim 1, characterized in that: the highly integrated chip is a highly integrated and highly reliable Internet of Things based on broadband high-speed communication on a two-core cable And a new control bus chip, which integrates analog front-end transceiver, baseband modulation and demodulation, digital signal processing, MCU core control and peripheral interface functions in one, which can provide complete communication solutions such as physical layer, media access layer, and application layer. Provide reliable, safe and efficient communication and control physical connection pipelines for the Internet of Everything.