RU2732316C1 - System for transmitting power, data and establishing communication over ethernet network - Google Patents

Abstract

FIELD: physics.

SUBSTANCE: invention relates to network technologies. Technical result is achieved by a communication system for Iot devices over a cable Ethernet network, comprising: Ethernet data mixer module, as well as data for IoT devices and remote power for IoT devices, installed on one end of Ethernet cable, comprising at least two transformers, each of which has primary winding with output of middle point and secondary winding, then - PoE transformer for arrangement of additional phantom data transmission channel, an Ethernet data splitter module, as well as data for IoT devices and remote power supply for IoT devices, installed on the other end of the Ethernet cable, containing at least two PoE transformers for arrangement of an additional phantom data transmission channel, made with possibility of connection: analogue or discrete sensors, or IoT devices with a two-wire interface with power transmission, or IoT devices with a two-wire interface without power transfer and/or IoT devices with a separate power input.

EFFECT: enabling data transmission and, if necessary, powering for IoT devices over a cable Ethernet network while maintaining an Ethernet channel.

11 cl, 1 dwg

Description

Technology area

The invention relates to the field of network technologies for transmitting data and power to electronic devices and can be used, in particular, to organize additional communication channel (s) using a new or already laid Ethernet cable between the IoT hub and the IoT device (s) ...

State of the art

Currently, there are many systems designed to transmit data and power to electronic devices. One example of such systems is the telephone communication system described in US 2013/0315048 A1. This solution allows simultaneous transmission of digital data and analog telephone signals in the same transmission medium. This applies to a network in which remote devices (eg, personal computers) are connected to a hub with a cable containing at least two pairs of wires, allowing data to flow in each direction. Modules at each end of the cable allow you to organize an additional communication channel between the telephone and the automatic telephone exchange (PBX) through two pairs of conductors in a phantom scheme. The described communication channels operate simultaneously and without significant mutual interference.

Among the disadvantages of the known solution is the limitation on the transmission of only telephony signals. Also, the known solution provides for connecting devices only at the ends of the cable without the possibility of connecting intermediate devices.

Terminology used in this decision

IoT device - an electronic device designed to interact with other IoT devices or with the external environment in accordance with the concept of the Internet of Things. In particular, IoT devices can be:

• security and fire system, sensor, sensor of temperature, humidity, illumination, pressure, gas concentration, sensor of one or more physical characteristics of an object, button, switch, rheostat, another sensor with pulse, potential or current output;

• a module for monitoring and controlling climate, lighting, curtains, ventilation, video cameras, television, media centers, air purification, TV and audio equipment, water supply, fire extinguishing, power supply, and other equipment;

• metering device for thermal electrical energy, water, gas, liquid, etc.

• audio / video communication device, microphone, video camera;

• a device for recording and / or playing audio and / or video.

An IoT hub is an electronic device capable of connecting to one or more IoT devices.

IoT channel - a data transmission channel for an IoT device, providing for the transfer of data and, if necessary, power.

PoE (Power over Ethernet) is a technology that allows electrical energy to be transmitted to a remote device along with data over an Ethernet cable network. This technology is intended for IP telephony, wireless access points, IP cameras, network hubs and other devices to which it is undesirable or impossible to run a separate power cable. PoE technology is described by the IEEE 802.3af-2003 and IEEE 802.3at-2009 standards (https://ru.wikipedia.org/wiki/Power_over_Ethernet method A).

Ethernet cable is a metal cable designed to organize communication over the Ethernet 10-Base-T, or Ethernet 100-Base-T, or Ethernet 1000-Base-T ¹ standard, or according to another standard including but not limited to the IEEE 802.3 series of standards, containing two or more pairs of wires.

Connector - electrical connector or terminal block for connecting an external cable. When integrating several blocks in one device - the border of the block connection (a system of conductors, tracks, connectors and terminal blocks).

Two-wire interface with power transmission - Serial interface for data and power transmission over a two-wire line, for example, M-Bus or KNX / EIB, or LonWorks, or IEEE P802.3cg, or 1-wire (with power transmission).

Two-wire interface without power transfer - A serial data interface that does not support power transfer, such as RS485 or CAN, or LIN, 1-wire (no power transfer).

RS interface is a serial interface that does not transfer power, such as TTL UART, or RS232, or a two-wire interface that does not transfer power.

The list of interfaces is not limited to those listed above, given only as an example.

System modules - mixer modules, splitter modules and intermediate module.

Disclosure of the essence of the invention

The object of the invention is to eliminate the disadvantages listed in the "Background Art" section.

The technical result is to provide the possibility of data transmission and, if necessary, power supply for IoT devices over a cable Ethernet network while maintaining the Ethernet channel.

An additional technical result is the provision of work through an organized communication channel of several IoT devices. At the same time, access to a specific IoT device is carried out, for example, using a protocol that provides for a unique address for each IoT device.

To achieve the indicated technical results, a communication system for IoT devices over a cable Ethernet network is proposed, containing:

- a mixer module for Ethernet data transmitted in accordance with the IEEE 802.3 standard, as well as data for IoT devices and remote power supply for IoT devices, installed at one end of an Ethernet cable, containing at least two transformers, each of which has a primary winding with a midpoint outlet and a secondary winding, hereinafter referred to as a PoE transformer, for organizing at least one additional phantom data transmission channel capable of connecting to the ports of an IoT hub of the following types:

- an input for connecting analog or discrete sensors, or

- a two-wire interface with power transmission, or

- two-wire interface without power transfer and / or

- remote power supply for IoT devices;

- a splitter module for Ethernet data, as well as data for IoT devices and remote power supply for IoT devices, installed at the other end of the Ethernet cable, containing at least two PoE transformers for organizing at least one additional phantom data transmission channel made with the ability to connect :

- analog or discrete sensors, or

- IoT devices with a two-wire interface with power transmission, or

- IoT devices with a two-wire interface without power transmission and / or

- IoT devices with a separate power input.

The system may additionally contain at least one intermediate module installed through the Ethernet cable between the mixer and splitter modules, which does not interfere with the Ethernet data transmission, and is configured to extract data for IoT devices and remote power supply for IoT devices of the following types:

- analog or discrete sensors, or

- IoT devices with a two-wire interface with power transmission, or

- IoT devices with a two-wire interface without power transmission and / or

IoT devices with separate power input. The intermediate module contains at least two pairs of PoE transformers, the outputs of the primary windings of which are closed in pairs with each other.

To organize data exchange with IoT devices via the RS interface and their remote power supply, the following can be additionally installed:

- a converter of the serial interface to a two-wire line with power mixing, intended for data exchange with an IoT switch and mixing remote power into a two-wire line - into a mixer module;

- a converter of a two-wire line into a serial interface with power supply, intended for data exchange and provision of remote power supply for IoT devices - into a splitter module and an intermediate module.

In this case, the two-wire interface with power transmission is M-Bus or KNX / EIB, or LonWorks, or IEEE P802.3cg, or 1-wire, and the two-wire interface without power transmission is RS485 or CAN or LIN. The list of interfaces is not limited to those listed, which are given as an example.

System modules can be equipped with additional elements of electrostatic protection, galvanic isolation and matching.

Also, when using an Ethernet cable with the number of pairs equal to three or more, with the third and subsequent pairs being additional pairs, the system modules can additionally contain at least one circuit for direct connection of inputs and outputs to which additional pairs are connected.

When using an Ethernet cable with the number of pairs equal to four or more, while the third and subsequent pairs are additional pairs, the system modules can additionally contain at least one circuit for connecting inputs and outputs to which additional pairs are connected through PoE transformers, with the possibility of organizing at least one additional data and power transmission channel for IoT devices.

Ethernet cable wires that are not used to carry Ethernet data can be used to carry power for IoT devices.

Brief description of the figure

Figure 1 is a block diagram of the organization of an additional data and power transmission channel for IoT devices over an Ethernet cable, containing an intermediate module installed through the Ethernet cable between the mixer modules and the splitter module.

For Ethernet cable pairs not shown, if any, implies either a direct connection between connectors E (S) and S, or the connection of the described pairs through isolation transformers, or duplication of components allowing or organizing additional channel (s) for data and power transmission for IoT devices. It is allowed to use free cable pairs that are not used for Ethernet transmission to transfer power for IoT devices.

Implementation of the invention

A schematic representation of the claimed communication system for IoT devices over an Ethernet cable network is shown in Figure 1. The system contains a mixer module 1 connected via an Ethernet cable to a splitter module 2 .

Through the Ethernet cable, between the mixer module 1 and the splitter module 2, an intermediate module 3 or several such intermediate modules can be installed in series.

Mixer module 1 contains at least two PoE transformers 4 , each of which has a primary winding with a midpoint output and a secondary winding, which allows you to organize at least one additional phantom data transmission channel with the ability to connect to the ports of the IoT hub of the following types:

- input 5 for connecting analog or discrete sensors or

- two-wire interface 6 , with power transfer, or

- two-wire interface 7 , no power transfer and / or

- remote power supply for IoT devices.

The splitter module 2 contains at least two PoE transformers 8 for organizing at least one additional phantom data transmission channel capable of connecting:

- analog or discrete sensors 9 , or

- 10 IoT devices with two-wire interface with power transmission, or

- 11 IoT devices with two-wire interface without power transmission and / or

- IoT devices with a separate power input.

Intermediate module 3 allows to allocate data for IoT devices and remote power supply for IoT devices of the following types:

- analog or discrete sensors (not shown), or

- IoT devices with a two-wire interface with power transfer (not shown), or

- IoT devices with a two-wire interface without power transfer (not shown) and / or

- IoT devices with a separate power input.

The intermediate module 3 contains at least two pairs of PoE transformers 16, the outputs of the primary windings of which are pairwise closed with each other, the converter 17 of the two-wire line into a serial interface with power supply, designed for data exchange with IoT devices via a two-wire interface without power transmission, as well as for data exchange and receiving power from a two-wire line.

The mixer module 1 contains a converter 12 of a serial interface into a two-wire line with power mixing, intended for data exchange with the IoT switch 13 via the RS interface, as well as for data exchange and power transmission over a two-wire line.

The splitter module 2 contains a converter 14 of a two-wire line into a serial interface with a separate power supply, intended for exchanging data with IoT devices 15 via an RS interface, as well as for exchanging data and receiving power for IoT devices from a two-wire line.

The mixer, splitter and intermediate module modules can be additionally equipped with electrostatic protection, galvanic isolation and matching elements, which are not shown in the block diagram.

To organize an IoT channel via free Ethernet cable pairs (not used for Ethernet data transmission), hereinafter referred to as an IoT pair, solutions similar to those described above can be used, with the following features: PoE transformers are not installed; in the mixer 1 and splitter 2 modules, the contacts of the E connector, to which the Ethernet signal pairs come, are closed to the corresponding contacts of the connector S. The contacts of the S connector, to which the IoT pair comes, are connected to the p and n circuits; in intermediate module 3, all contacts of the S connectors are closed in pairs (1 s 1, 2 s 2, etc.). The pins of the S connectors that the IoT pair comes to are also connected to the p and n circuits.

The declared communication system allows organizing an additional data transmission channel between the IoT hub and IoT devices via: a) an analog two-wire line; b) two-wire interface without power transfer; c) two-wire interface, with power transfer; d) RS interface and remote power transmission circuits.

The system modules can be either devices in a separate housing, or they can be integrated into an IoT hub, into an Ethernet device, into an IoT device, or into sockets, while several mixer, splitter and intermediate modules in any combination can be integrated in one housing with the necessary internal or external connections between them.

Although this invention has been shown and described with reference to certain embodiments thereof, those skilled in the art will appreciate that various changes and modifications may be made therein without departing from the actual scope of the invention.

Claims (27)

1. Communication system for IoT devices over a cable Ethernet network, characterized in that it contains: - a mixer module for Ethernet data transmitted in accordance with the IEEE 802.3 standard, as well as data for IoT devices and remote power supply for IoT devices, installed at one end of an Ethernet cable, containing at least two transformers, each of which has a primary winding with a midpoint outlet and a secondary winding, hereinafter - a PoE transformer for organizing at least one additional phantom data transmission channel capable of connecting to the ports of an IoT hub of the following types: - an input for connecting analog or discrete sensors, or - a two-wire serial interface with power transmission, or - two-wire serial interface without power transmission and / or - remote power supply for IoT devices; - a splitter module for Ethernet data, as well as data for IoT devices and remote power supply for IoT devices, installed at the other end of the Ethernet cable, containing at least two PoE transformers for organizing at least one additional phantom data transmission channel made with the ability to connect : - analog or discrete sensors, or - IoT devices with a two-wire serial interface with power transmission, or - IoT devices with two-wire serial interface without power transmission and / or - IoT devices with a separate power input. 2. A communication system for IoT devices over a cable Ethernet network according to claim 1, characterized in that it additionally contains at least one intermediate module installed in the cut of the Ethernet cable between the mixer and splitter modules, which does not interfere with the Ethernet data transmission and is made with the ability to allocate data for IoT devices and remote power supply for IoT devices of the following types: - analog or discrete sensors, or - IoT devices with a two-wire serial interface with power transmission, or - IoT devices with two-wire serial interface without power transmission and / or - IoT devices with a separate power input. 3. A communication system for IoT devices over a cable Ethernet network according to claim 2, characterized in that the intermediate module contains at least two pairs of PoE transformers, the outputs of the primary windings of which are pairwise closed with each other. 4. A communication system for IoT devices over a cable Ethernet network according to claim 1, characterized in that it additionally contains: - a converter of the serial interface to a two-wire line with power mixing, intended for data exchange with the IoT switch and mixing remote power into the two-wire line, installed in the mixer module, and - a converter of a two-wire line to a serial interface with power supply, intended for data exchange and provision of remote power supply for IoT devices, installed in the splitter module and intermediate module. 5. Communication system for IoT devices via cable Ethernet network according to any one of paragraphs. 1-4, characterized in that the mixer modules, the splitter and the intermediate module are additionally equipped with electrostatic protection, galvanic isolation and matching elements. 6. Communication system for IoT devices via cable Ethernet network according to any one of paragraphs. 1-4, characterized in that the Ethernet cable contains three pairs of wires or more, while the third and subsequent pairs are additional pairs. 7. The communication system for IoT devices over a cable Ethernet network according to claim 6, characterized in that the mixer, splitter and intermediate module additionally contain at least one circuit for direct connection of inputs and outputs to which additional pairs are connected. 8. Communication system for IoT devices via cable Ethernet network according to any one of paragraphs. 1-4, characterized in that the Ethernet cable contains four or more pairs of wires, while the fourth and subsequent pairs are additional pairs. 9. A communication system for IoT devices over a cable Ethernet network according to claim 8, characterized in that the mixer, splitter and intermediate module additionally contain at least one circuit for connecting inputs and outputs to which additional pairs are connected through PoE transformers , with the possibility of organizing at least one additional data and power transmission channel for IoT devices. 10. Communication system for IoT devices over a cable Ethernet network according to claim 1, characterized in that the two-wire serial interface with power transmission is M-Bus, or KNX / EIB, or LonWorks, or IEEE P802.3cg, or 1-wire ... 11. Communication system for IoT devices over a wired Ethernet network according to claim 1, characterized in that the two-wire serial interface without power transmission is RS485, or CAN, or LIN.

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