WO2020171742A1

WO2020171742A1 - Universal modular iot controller for a system of global monitoring and control

Info

Publication number: WO2020171742A1
Application number: PCT/RU2020/050021
Authority: WO
Inventors: Алексей Владимирович КЫЧКИН; Сергей Викторович ГРИБАНОВ
Original assignee: Ооо "Инсайт Глобал"
Priority date: 2019-02-19
Filing date: 2020-02-17
Publication date: 2020-08-27
Also published as: RU2712111C1

Abstract

The invention relates to the processing of digital data using electrical devices comprising the connection of storage devices, input-output devices, central processor devices and devices for transmitting information or other signals between these devices, said electrical devices being intended for use in systems for global monitoring and control of energy resources on the basis of IoT technology. The proposed controller comprises, incorporated into a common housing, an input-output module (1), which is at the same time a motherboard, a system module (2) installed immovably on the motherboard, and also a connector, which is installed on the motherboard and is intended for the installation of a communication module (3) on the motherboard. Furthermore, the input-output module (1), the system module (2) and the communication module (3) (if installed) are electrically interconnected via the motherboard such that the input-output module (1) and the communication module (3) (if installed) operate under direct control of the system module (2).

Description

UNIVERSAL MODULAR IoT CONTROLLER FOR GLOBAL SYSTEM

MONITORING AND CONTROL

DESCRIPTION

The technical field to which the invention relates

The invention relates to the processing of digital data using electrical devices, which are a connection of memory devices, input-output devices, central processor devices, devices for transmitting information or other signals between these devices, and intended for use in global monitoring and control systems, in particular, in energy management systems based on 1oT technology.

State of the art

In the present description and in the claims based on the description, the following terms are used:

"I OT" - Internet of Things,

"1-thing" - the Internet is a thing,

"Energy data" - numerical values characterizing the quantitative and qualitative indicators of consumption, production, transportation and storage of various types of energy resources,

"IoT-management" - management through the technologies of the Internet of things;

(see, for example: Roslyakov A.V. Internet of things: textbook / A.V. Roslyakov, S.V. Vanyashin, A.Yu. Grebeshkov. - Samara: PSUTI, 2015. - 200 p., which is published on http://eclib.psuti.ru).

Known controller containing a splash-proof housing with a backplane, which is a unifying unit, by means of which electrical switching of signal and supply circuits in the controller and connection of external circuits from connectors is provided, a secondary power supply module that generates secondary voltages necessary to power the modules installed in the controller , a system module containing the computing core of the system and the necessary devices for performing the main functions of the product, additional modules operating under the control of the system module, including a unified signals module containing a digital serial interface for communication with the system module, a telemetry and tele-signaling module containing a digital parallel interface for communication with the system module, GSM module modem, containing a digital serial interface for communication with the system module, the controller is equipped with a set of up to 4 additional modules with module functions that are optimally selected for all standard versions of cathodic protection stations within a limited range, as well as digital interfaces built into the main module necessary for everyone versions of cathodic protection stations and Ethernet interface (Patent RU Ns 6440V, IPC G06F 17/00, published on June 27, 2007 Bul. Ns 18).

Signs of the known technical solution, which are common with the declared one, are the presence of a housing, a backplane, signal and supply circuits, a secondary power supply, a system module with an Ethernet interface, and a GSM modem module.

The reason preventing the desired technical result from the known technical solution is that the controller has limited functionality, which makes it impossible to use it in global monitoring and energy management systems based on 1oT technology.

The closest analogue (prototype) is a telemechanics controller, which contains a system module, a power supply module, input-output modules, a communication module built into a common case, operating under the control of a system module and connected by means of a backplane that provides electrical switching of signal and supply circuits, and also connection of external circuits from the first group of connectors, while the controller also additionally contains external I / O modules connected to the system module via a digital serial interface through the second and third groups of connectors, and connected to sensors and actuators through the fourth group of connectors. (Patent RU Ns 110198 U1, IPC G06F13 / 00, published on 10.11.2011 Bull. Ns 31).

Signs of the known technical solution, which are common with the claimed one, are that it contains a system module, input-output modules, a communication module built into a common housing, operating under the control of a system module and combined by means of a backplane that provides electrical switching of signal and supply circuits, as well as the connection of external circuits.

The reason that prevents the desired technical result from being obtained in the known technical solution is that the controller has a complex design and limited functionality, which does not make it possible use it in global monitoring and energy management systems based on 1oT technology.

Disclosure of invention

The technical problem to be solved by the claimed invention lies in the need to expand the arsenal of controllers by creating a universal modular 1oT controller for global monitoring and energy management systems based on 1oT technology.

The technical result consists in the implementation of the specified purpose: expanding the arsenal of controllers by creating a universal modular 1oT controller, characterized by the ability to control energy data, manage energy consumption both in an autonomous mode and, mainly, within the framework of the global energy consumption management center based on IoT control technology ... At the same time, the declared controller relative to the prototype is characterized by a simpler modular design due, firstly, to the I / O module performing the function of the controller backplane, due to, secondly, the absence of a separate power supply module in the controller design due to the arrangement of the power supply circuit elements as directly on the backplane and on the board of the system module, so that the transformer of this circuit is connected by its input to the input mains of the first measuring channel of the controller. As for the versatility of the controller, it, on the one hand, is provided by the already mentioned possibility of the controller to work autonomously and in the global IoT control system, and on the other hand, the possibility of using different channels of interaction between the controller and the IoT control center (primarily Ethernet, but also based on the customer's capabilities and the customer's choice: Wi-Fi, GSM / GPRS or LORA).

The technical result is achieved by the fact that the universal modular 1oT-controller for the global monitoring and energy management system contains a system module built into a common housing and electrically connected to each other and an input-output module operating under the control of a system module, while the input-output module is made with the ability to measure energy data and control energy consumption objects, and is a backplane that combines a system module equipped with an Ethernet connector and a LAN adapter for connecting the controller with the IoT center, the mentioned input-output module and a connector for installing a communication module designed to be installed under control the system module of the alternative radio communication channel of the controller with the IoT-center using a Wi-Fi, GSM / GPRS or LORA radio modem, while the input-output module contains measuring channels for measuring the energy consumption parameters of power consumption objects connected to these channels, and each measuring channel includes a matching unit , connected to a measuring microcircuit, which is connected through a galvanic isolation unit to the information inputs-outputs of the central processor, which is a part of the system module, solid-state relays for turning on and off external devices at the commands of the central processor, to which these relays are connected by means of an input-output expander, discrete inputs connected to information inputs-outputs of the central processor through an expander of inputs-outputs, for monitoring the state of external devices by measuring input discrete signals, as well as the controller's power supply circuit, consisting of serially connected x transformer, rectifier and voltage stabilizer connected to the power input of the I / O expander, while the transformer of this circuit is connected to one of the inputs of the matching unit of the first measuring channel.

The technical result is also achieved by the fact that the controller contains a communication module installed on the cross-board in the connector intended for it on this board, while the communication module contains connectors for installing Wi-Fi, GSM / GPRS and LORA radio modems, as well as a radio modem identification unit , with the help of which only one radio modem is connected to the system module, installed on the communication board in the connector intended for it on this board.

New features of the claimed technical solution are in the implementation of the input-output module. New features are also the presence and performance of the communication module.

Brief Description of Drawings

Figure 1 shows a functional diagram of a universal modular 1oT controller for a global IoT control and energy monitoring system (hereinafter referred to as the controller).

Description of preferred embodiments of the invention

The controller contains built-in I / O module 1, which is at the same time a backplane, permanently installed on the backplane. system module 2, as well as a connector installed on the backplane for installation on the backplane of communication module B (case, backplane as such, and any connectors are not shown in the figure). In this case, I / O module 1, system module 2 and communication module 3 (if installed) are electrically connected to each other through the backplane, so that I / O module 1 and communication module 3 (if installed) operate under the direct control of system module 2 ...

The input-output module 1 is configured to measure parameters related to energy consumption (energy data) and to control energy consumption objects. The attached figure shows (including) a functional diagram of a possible embodiment of this module, namely, an option associated with measuring the parameters of 3-phase electrical power lines of various 1-things (energy consumption objects, i.e. energy-consuming equipment of technological lines connected to the controller, for example, motors, pumps, compressors and APs

Module 1 in this particular embodiment contains four measuring channels (two are shown in the figure), each of which includes a serially connected matching unit 4, a measuring microcircuit 5 and a galvanic isolation unit 6. Each measuring channel is designed to measure six electrical parameters of power consumption of one specific 1-things (three voltages and three currents in accordance with the three phases of the power supply network 1-things). In this case, the voltage is fed directly to the cross-board, and the current is fed through the current transformers. Matching unit 4 is designed to convert high voltage (220 V) to low voltage, which is fed to the measuring microcircuit 5, and transfer (using a shunt resistor) a large current to a small one up to 10 mA, which is also fed to the measuring microcircuit 5. As a measuring microcircuit 5 uses an industrial-scale large integrated circuit V9203 (made in China), designed to measure the parameters of three-phase circuits. It includes blocks for calibration, measurement of phase sequence, instantaneous and average values of voltages and currents, power (active, reactive, total), power factor calculation unit, memory, digital interface and others. As a block of galvanic decoupling b is used the industrial integrated microcircuit ADUM 1401 BRW. The input-output module 1, in addition, contains an input-output expander 14, which provides information transmission from a plurality of its inputs to one of its outputs and from one of its inputs to a plurality of its outputs (multiplexing and demultiplexing function). As expander 14, an industrial PCA 9555 PW integrated circuit is used.

In addition, the input-output module 1 contains four solid-state relays 7 (two are shown), each of which is a semiconductor switch designed to turn on and off external devices at the command of the central processor 15, to which these solid-state relays are connected by means of an expander 14.

In addition, the input-output module 1 contains four discrete inputs 8 (two are shown), each of which is an electrical signal conditioning circuit and a measuring integrated logic circuit and is intended for external connected devices and sensors with an output type of "dry contact" or transistor keys, as well as monitoring the status of external devices and equipment, including switches, buttons, limit switches, relay contacts, etc. by measuring input discrete signals.

I / O module 1 contains a controller power supply circuit integrated into the module (transformer 9, rectifier 10 and voltage stabilizer 11 connected in series), as well as an RS-485 interface 12 integrated into the module, intended for wired connection (up to 1 km) of external devices with digital interface, galvanic isolation unit 1B, through which interface 12 is connected to the central processor 15. In this case, one of the outputs of the stabilizer 11 of the specified power supply circuit is connected to the power input of the expander 14, and the transformer 9 of this circuit is connected to one of the inputs of the matching unit 4 of the first measuring channel (this connection is not shown in the figure), which makes it possible to exclude the power module from the controller design as a structurally separate module, which in turn simplifies the controller's design and operation.

Each solid-state relay 7 and each discrete input 8 through an expander 14 are connected to the corresponding information inputs-outputs of the central processor 15. The information inputs-outputs of the central processor 15 are also connected through the corresponding galvanic isolation blocks b outputs measuring microcircuits 5 measuring channels, as well as through the block of galvanic isolation 1V inputs-outputs of the RS-485 interface 12.

Specific embodiments (modifications) of the input-output module 1 may differ in the number of measuring channels, the function of these channels based on the types of controlled energy consumption, the presence of a different number of relays 7 and discrete inputs 8, their different design or their absence. However, all possible variants of execution (modifications) of the I / O module 1 contain measuring channels, a power supply circuit (positions 9, 10, 11), including the mentioned connections of the units 9 and 11 included in it, an RS-485 interface 12 with a galvanic isolation unit 13 and expander 14.

System module 2 contains a central processor 15 (32-bit integrated circuit STM32), to which two RAM blocks 16, a permanent memory block 17, an SD memory card 18, a programmer connector 19, a USB connector 20 through diode protection 21, an Ethernet connector are connected 22 via a LAN adapter 23, a block of LED indicators 24, as well as an additional power supply circuit, including an additional stabilizer 25 connected to the output of the stabilizer 11, a battery 26, a battery charge controller 27 and a voltage regulator 28 connected by its output to the power input of the central processor 15 and the corresponding contact of the connector for installing the communication module 3. Blocks of random access memory 16 are volatile, they are intended for temporary storage of variables, arrays. The permanent memory block 17 is non-volatile, it is designed to store the program of the controller. SD card 18 is for storing the archive; it is removable. Programmer connector 19 is designed to connect an external device for downloading and debugging the program during the controller manufacturing process. Connector 19 is located on the system module board 3 and is not accessible to the user; it is intended for the person who downloads and debugs the program. USB connector 20 through diode protection 21 is connected to the central processor 15. Connector 20 is designed to connect an external computer for the purpose of debugging and updating the software for the central processor, setting and configuring the operating parameters of the device. Diode protection 21 is designed to prevent the transmission of possible high voltages and currents to an external computer. Ethernet connector 22, connected to processor 15 via LAN adapter 23, is designed to establish information (wired) communication of the controller with the 1oT-center. Block 24 contains a plurality of 15 LEDs connected to the processor, through which a visual indication of the controller's operation is carried out. An additional power supply circuit (items 25-28) allows the system module 2 and communication module B (if installed) to operate during a temporary outage of the external power source.

Communication module 3 is designed to establish radio communication between the controller and the 1oT-center, an alternative to wired communication through the Ethernet connector 22. This module is optional, since the design of the system module 2 contains the mentioned Ethernet communication channel. For this reason, only a connector for installing a communication module 3 is installed on the backplane in the controller design. At the same time, the communication module 3 itself contains three connectors for installing Wi-Fi, GSM / GPRS and LORA radio modems on the communication module (positions 29, 30, 31 ). In addition, the communication module contains an identification unit 32 permanently installed on this module, designed to identify a radio modem (one of three) intended for establishing radio communication between the controller and the IoT center. In this case, the specified block 32 in its simplest embodiment is electrical jumpers connecting only one radio modem with the processor 15. In this case, in the controller case on the backplane, which is also an input-output module, a communication module 3 s is installed in the corresponding connector the radio modem (either 29, or 30, or 31), which is set on the identification block 32. Thus, the consumer can be supplied with controllers in three configuration options:

1) without communication module 3, when the controller can communicate with the IoT-center only via Ethernet (positions 22, 23);

2) with communication module 3, containing one radio modem out of possible three, so that the supplier on the identification unit 32 pre-specified the actually installed radio modem;

3) with a communication module 3 containing all radio modems (positions 29, 30, 32), so that the consumer himself, using the identification unit 32, determines the radio modem that he will actually use to communicate with the IoT center.

The use of the controller is as follows.

A legal entity that is the owner of the IoT center concludes contracts with the center's clients for the provision of services for the provision of automated 1oT control and management of energy consumption. In this case, the client can be in any place of the globe, subject to access to the Internet via Ethernet or one of the radio channels (Wi-Fi, GSM / GPRS, LORA). For this purpose, each client acquires and installs at his facilities, the energy data of which is subject to control and management, a set of controllers for the formation and the corresponding 1-things. Each 1-thing represents one or many power-consuming objects connected to the controller. All these objects are divided into groups, each of which is connected to one controller. In this case, a common three-phase power line of a group of objects is connected to the first measuring channel (positions 4, 5, 6), to which the transformer 9 of the controller's power supply circuit is also connected. To other measuring channels (they are in Fig. Under the same positions 4, 5, 6), three-phase power lines of individual energy consumption objects included in the group under consideration are connected. If necessary, within the framework of the considered group of objects, connections are also made to solid-state relays 7 and discrete inputs 8 of the controller in question.

The 1-things formed in this way are included in the system of global 1oT control and management, within which the set under consideration forms the lower (client) level of the system that performs the function of global control and management.

Depending on the client's tasks, he may be offered various modifications of the controller to form different sets of 1-things within the declared patent claims. Below is a typical set of 1-things formed using the declared controller.

The simplest 1oT controller in this set is a recorder, which is a device that can be connected either to a single-phase network or to a three-phase network (single-phase or three-phase recorder). It measures instantaneous and average currents in phases, voltages, active, reactive and apparent power, energy, frequency and a number of other parameters that characterize the amount and quality of passing electrical energy. Such a registrar establishes both the electricity supplier (at its output) and the consumer (at its input). If there are no losses, no unauthorized connections, then both contractors fix the same amount of electricity. But, since there is efficiency, drops, open circuit, short circuit, leakage, it is obvious that the consumer will actually receive less energy than the supplier gave. In this case, each recorder of the pair under consideration accumulates information in its memory, where this information is stored for up to six months. But, since the registrar has an Internet connection interface, each interested counterparty can receive this information via the Internet. Recorders can be single-channel or multi-channel. A single channel recorder is a device that can only be connected to one power line. The multichannel recorder has several channels, each of which can be connected to its own power line. In addition, for control at the lower level of the system, a dimmer is used, which is multi-channel. It can control loads up to 2 kilowatts, including powerful switching equipment, circuit breakers or contactors. At the lower (client) level, a universal controller is also used, which is a conventional input-output device for analog and discrete signals, where signals of the 0-10 V standard, signals from temperature, humidity, and pressure sensors can be brought. The devices can work as gateways (protocol converters): on the one hand, the Internet, and on the other, an industrial network with Modbus RTU protocols, etc. The gateway allows converting signals and sending data to the Internet.

Claims

CLAIM

1. A universal modular 1oT controller for a global monitoring and energy management system, containing a system module (2) built into a common housing and electrically connected to each other and an I / O module (1), operating under the control of a system module (2), characterized by that the I / O module (1) is designed to measure energy data and control energy consumption objects, and is a backplane that unites the system module (2), equipped with an Ethernet connector (22) and a LAN adapter (23) for connecting the controller with 1oT -center, the aforementioned input-output module (1) and a connector for installing a communication module (3), designed to establish, under the control of the system module (2), an alternative radio communication channel of the controller with the IoT-center using the Wi-Fi radio modem (29), GSM / GPRS (30) or LORA (31),

at the same time, the input-output module (1) contains measuring channels for measuring the parameters of energy consumption of energy consumption objects connected to these channels,

moreover, each measuring channel includes a matching unit (4) connected to a measuring microcircuit (5), which through a galvanic isolation unit (6) is connected to the information inputs-outputs of the central processor (15), which is part of the system module (2), solid-state relays (7) to turn on and off external devices by commands from the central processor (15), to which these relays are connected by means of an I / O expander (14), discrete inputs (8) connected to the information inputs-outputs of the central processor (15) through an expander inputs-outputs (14), for monitoring the status of external devices by measuring input discrete signals, as well as a controller power supply circuit consisting of a series-connected transformer (9), a rectifier (10) and a voltage stabilizer (11) connected to the power input of the input expander - outputs (14), while the transformer (9) of this circuit is connected to one of the inputs of the matching unit (4) of the first measuring body channel.

2. Universal modular 1oT-controller according to claim 1, characterized in that it contains a communication module (3) installed on the backplane in the connector intended for it on this board, while the communication module contains connectors for installing Wi-Fi radio modems (29), GSM / GPRS (30) and LORA (31) as well as identification unit (32) a radio modem, with the help of which only one radio modem is connected to the system module (2), installed on the communication board in the connector intended for it on this board.