RU165005U1 - MONITORING TERMINAL - Google Patents

Abstract

The monitoring terminal is made in the form of a case, inside of which there is a computing unit including a processor, internal memory, a microcontroller configured to update the internal memory, a Wi-Fi module, a GSM communication module, a state synchronization signal conditioning unit, an encryption unit, on the front housing panel there is a connector for connecting a removable memory card of large capacity, a touch display, keyboard, programmable interface unit, ETHERNET network interface unit, machine interface unit, wholesale unit isolated digital input-output channels of the analog input channel block, said block of machine interface unit optoisolated digital input-output channels and the unit of analog input channels intended for connection to machine tools with different control systems.

Description

MONITORING TERMINAL

The technical field to which the technical solution relates.

The technical solution relates to the field of machine tools, in particular, to devices specially designed for monitoring technological equipment and can be used in systems.

CNC equipment can be represented by: a machine park, for example, machines (machines equipped with numerical control are called CNC machines): for processing metals (for example, milling or turning), wood, plastics, for cutting sheet blanks, for pressure processing etc., by industrial robots; asynchronous electric drives using vector control; characteristic control system of modern industrial robots.

The monitoring terminal is an interface device for the exchange of information between technological equipment with various control systems and modern information systems.

State of the art

The prior art device input or output control programs for processing parts in CNC machines, UVV51, described in the patent for utility model No. 33444, publ. 10/10/2003 class G06F 13/12, which includes the interface part of the photo-reading device, a connecting cable with an CNC device, while it additionally contains a single-chip microcontroller, an optocoupler isolation unit, a connecting cable with a personal computer and is equipped with a jumper to select an operating mode. The disadvantages of the known device is the lack of discrete optically isolated input-output channels, which does not allow connecting any equipment, both CNC machines and non-CNC machines, any technological equipment - pumps, furnaces, motors, air conditioners, fans of any manufacturers, i.e. there is no possibility to monitor all the equipment in the enterprise, as well as the lack of internal memory.

A device for monitoring machine tools is described in the patent for invention US 20100154051 A1, publ. 06/17/2010, class G06F 12/10, including a processor part, an interface part, a color graphic display, a keyboard, connecting cables with a machine control device, an ETHERNET network interface, machine interfaces, a removable storage medium in the form of a removable memory card of large capacity, while the machine terminal is simultaneously the interface between modern information systems and the machine control system, contains devices that provide data exchange via GSM communication channels. The disadvantages of the known device is the lack of discrete optically isolated input-output channels, which does not allow connecting any equipment, both CNC machines and non-CNC machines, any technological equipment - pumps, furnaces, motors, air conditioners, fans of any manufacturers, i.e. there is no possibility to monitor all equipment at the enterprise.

Known machine terminal described in the patent for utility model CN 203084510 U, publ. 07.24.2013 cells G05B 19/414, comprising a processor part, an interface part, a color graphic display, a keyboard, connecting cables with a machine control device, an ETHERNET network interface, machine interfaces, while a machine terminal is also an interface between modern information systems and a machine control system, contains devices providing data exchange via GSM communication channels. The disadvantages of the known device is the lack of discrete optically isolated input-output channels, which does not allow connecting any equipment, both CNC machines and non-CNC machines, any technological equipment - pumps, furnaces, motors, air conditioners, fans of any manufacturers, i.e. there is no possibility to monitor all equipment at the enterprise.

Known machine terminal described in the patent for invention CN 102880115 A, publ. 01/16/2013, class G05B 19/406, including a processor part, an interface part, a color graphic display, a keyboard, connecting cables with a machine control device, an ETHERNET network interface, machine interfaces, while the machine terminal is also an interface between modern information systems and a machine control system, contains devices providing data exchange via GSM communication channels. The disadvantages of the known device is the lack of discrete optically isolated input-output channels, which does not allow connecting any equipment, both CNC machines and non-CNC machines, any technological equipment - pumps, furnaces, motors, air conditioners, fans of any manufacturers, i.e. there is no possibility to monitor all equipment at the enterprise.

Known machine terminal described in the patent for utility model RU 126855 U1, publ. 04/10/2013, class G05B 19/00, comprising switching-connected operator control panel, machine control panel, industrial computer with installed control core, at least one mobile computer with a virtual panel installed, a personal computer with a virtual panel installed, a network router, The core of the control system is made with a synchronization module, and the machine panel is connected directly to an industrial computer with the ability to process and transmit data to the syn ronizatsii addition, mobile and personal computers are connected to an industrial computer control system. The disadvantages of the known device is the lack of discrete optically isolated input-output channels, which does not allow connecting any equipment, both CNC machines and non-CNC machines, any technological equipment - pumps, furnaces, motors, air conditioners, fans of any manufacturers, i.e. there is no possibility to monitor all the equipment in the enterprise, as well as the lack of internal memory.

The closest analogue is the machine terminal described in the patent for utility model RU 151945 U1, publ. 03/30/2015, cl. G06F 13/12, G05B 19/18 containing a processor, internal memory, a controller that provides memory updates, a Wi-Fi module, on the front panel of the terminal housing there is a slot for connecting a removable memory card with large capacity, a display, a keyboard, a connector for connecting cables with a machine control device, an ETHERNET network interface node, machine interfaces, such as, for example, RS232, IRPS, IRPR, USB, which are necessary for connecting to machine equipment with various control systems, discrete opto-isolated channels O-water, GSM communication channel. The disadvantages of the known device is the impossibility of software and hardware support for the registration of workers at the beginning and end of work, which does not allow receiving information from the machine terminal on the comparison of the operating time of the equipment and the operator responsible for this work, as well as the lack of means to ensure reliable operation as part of a group of similar machine terminals and encryption of transmitted production information.

The essence of the technical solution

The problem to which the claimed technical solution is directed is to eliminate the above disadvantages.

The technical result of the claimed technical solution is to expand the functionality of the device due to the presence of programmable input channels for information, by transmitting group synchronization signals in a local group of similar monitoring terminals, and to increase security by encrypting the transmitted production information.

The monitoring terminal is designed as a case, inside which there is a computing unit including a processor, internal memory, a microcontroller configured to update the internal memory, a Wi-Fi module, a GSM communication module, a state synchronization signal conditioning unit, an encryption unit, on the front housing panel there is a slot for connecting a removable memory card of large capacity, a touch display, a keyboard, a block of programmable interfaces, a network interface node ETHERNET, a block of machine interfaces RS232, IRP C, IRPR, USB, a block of opto-isolated discrete I / O channels, a block of analog input channels, the above-mentioned block of machine interfaces, a block of opto-isolated discrete I / O channels and a block of analog input channels are designed to connect to machine equipment with various control systems.

Brief Description of the Drawings

In FIG. the structural diagram of the device, where:

1 - monitoring terminal;

2 - touch display;

3 - keyboard;

4 - block programmable interfaces;

5 - block machine interfaces (RS232, USB, IRPS, IRPR);

6 - encryption block;

7 - block shaper signal synchronization;

8 - computing unit;

9 - removable memory card;

10 - communication interfaces (ETHERNET channel, Wi-Fi channel, GSM channel);

11 - block optically isolated discrete channels;

12 - inputs of a block of optically isolated discrete channels;

13 - outputs of a block of optically isolated discrete channels;

14 - block analog channels;

15 - inputs of the block of analog channels;

Options for the implementation of technical solutions

Hereinafter, the terms used in the application will be described.

Numerical control (CNC) - a computerized control system that controls the drives of technological equipment, including machine tooling.

IRPS - radial serial interface (current loop).

IRPR - radial parallel interface.

Wi-Fi (abbreviated from the English. Wireless Fidelity) - a standard for equipment for broadband radio communications, intended for the organization of local wireless networks Wireless LAN.

GSM (short for Global System for Mobile Communications) is the global standard for digital mobile cellular communications, with channel separation by time (TDMA) and frequency (FDMA).

ETHERNET is a family of standards that define wired connections and electrical signals at the physical level, frame format and media access control protocols at the data link layer of the OSI model.

RS232 (short for Recommended Standard 232) is a physical layer standard for asynchronous interface (UART).

It provides data and some special signals between the terminal and the communication device.

USB (short for Universal Serial Bus - “universal serial bus”) is a serial data transfer interface for medium-speed and low-speed peripheral devices in computer technology.

The monitoring terminal is made in the form of a case, inside of which there is a computing unit including a processor, internal memory, a microcontroller configured to update the internal memory, a Wi-Fi module, a GSM communication module, a state synchronization signal conditioning unit, and an encryption unit.

On the front panel of the case there is a slot for connecting a removable memory card of large capacity, a touch display, a keyboard, a block of programmable interfaces, a network interface node ETHERNET, a block of machine interfaces RS232, IRPS, IRPR, USB, a block of optically isolated discrete input / output channels, an analog channel block input, the aforementioned block of machine interfaces, a block of optically isolated discrete input / output channels and a block of analog input channels designed to be connected to the machine equipment using one of the machine s interfaces, depending on the machine control system.

As a removable high-capacity memory card in the monitoring terminal, standard USB flash drives or SD memory cards can be used, miniSD and microSD memory cards can be installed through the corresponding adapters. A removable memory card of large capacity is necessary for recording a copy of technological information on it, which is also recorded on the internal memory of the monitoring terminal.

The unit of discrete optically isolated input-output channels in the claimed monitoring terminal allows you to connect any equipment, such as CNC machines or non-CNC machines, namely any technological equipment - pumps, furnaces, motors, air conditioners, fans from any manufacturers. Thus, it is possible to bring and monitor all equipment into a single network of the enterprise.

By a discrete channel is meant a channel for receiving / transmitting discrete signals with an amplitude of 24V +/- 20% positive polarity. As a rule, the machine’s electrical automation is powered by a constant voltage of 24V amplitude.

The analog channel block is used to receive electric current or voltage signals corresponding to continuously changing physical quantities, such as electric current, voltage, power, pressure, temperature, etc., as well as to convert them to a discrete (digital) form.

An analog channel means a channel for receiving electric signals of current (constant, variable with an amplitude of not more than 50 mA) and voltage (constant, variable with an amplitude of not more than 2 V). As a rule, the machine’s electrical automation is powered by a constant voltage of 24V amplitude.

The monitoring terminal is capable of collecting and accumulating on a large capacity memory card data for monitoring the status of machine tools, transmitting accumulated information on the operation of machine tools over the local ETHERNET network, receiving and transmitting control programs for processing parts and other technological information over the ETHERNET network, and entering them into the machine with program control, output from the machine with program control and storage of control programs for processing parts.

The encryption block is a software and hardware module designed for encoding and decoding transmitted information packets with monitoring data, as well as frames of control programs for CNC machines. A block converts input or output information according to an algorithm embedded in a block module. To implement the functions incorporated in the block, two-way information interaction is carried out between the microcontroller and the block on the one hand and communication interfaces on the other hand.

The use of an encryption unit increases the security of received / transmitted data and is necessary, for example, when transmitting monitoring data via wireless communication channels, as well as when transmitting control programs for CNC machines installed in enterprises with increased requirements for information protection.

The block of programmable interfaces is intended for data exchange with connected additional devices.

The received data is displayed on the touch screen of the monitoring terminal and transmitted over the ETHERNET, Wi-Fi, GSM networks. If the connection via ETHERNET, Wi-Fi, GSM is lost, the information will be recorded on the memory card.

The state synchronization signal generator unit, the long absence of which in the local group of similar monitoring terminals is a prerequisite for reconfiguring the distribution of responsibility zones while ensuring group survivability (self-healing), is a hardware-software generator of sync packets transmitted to other terminals of a given group.

For example, a group of several terminals serves several machines. In the event of a failure or shutdown of one of the terminals, the monitoring system initiates a change in the zones of responsibility by means of the state synchronization signal conditioning unit, as a result of which each of the remaining functioning terminals starts servicing more machines at the same time.

The following is a description of an example of the practical implementation of the claimed technical solution.

The monitoring terminal is installed on the CNC machine and connected to the local ETHERNET network. Using a cable, the monitoring terminal is connected to the machine connector, through which technological programs are entered into the machine. With another cable, the opto-isolated inputs of the monitoring terminal are connected to certain signals of the machine, reflecting its status (the machine is turned on, the hydraulics are turned on, program work, etc.). After supplying the supply voltage, the monitoring terminal automatically starts collecting, accumulating information about the operation of the machine, and the monitoring terminal can also transmit the same information to the local network if necessary. Loading and unloading of technological programs is carried out by the machine operator through the monitoring terminal in the dialogue mode.

The versatility of the monitoring terminal allows you to connect it to transfer technological control programs (UP) to CNC systems of various models and years of production. The monitoring terminal is connected with the CNC system via the IRPR interfaces (parallel input-output mode), IRPS (20 mA current loop), USB, RS-232. Interface parameters are set by the user and stored in the memory of the monitoring terminal.

To account for the operating time of the machine, a number of its states is determined based on the monitoring tasks at a particular enterprise and the type of equipment.

The machine can be turned on (power is supplied to it) or turned off. If the machine is turned on, then it either produces products (works according to the program) or is idle. A machine downtime can have various reasons: performing auxiliary operations during part processing (setting a part, zero point binding, etc.); adjustment and readjustment of the machine; performance on the machine of scheduled repair work (NDP); malfunction of the machine in electronics, electrics, mechanics; absence, malfunction or adjustment of the part program; tool breakage or replacement; lack of blanks; unscheduled downtime through the fault of the shop personnel.

Monitoring of all these conditions is carried out using the proposed monitoring terminal, using automatic data collection and its storage, both in the internal memory of the machine and on a large memory card. All data received by the monitoring terminal is recorded in its internal memory. In parallel, the received information is recorded on the memory card of the monitoring terminal. This allows you to monitor the operation of the machine when the monitoring program is disabled and even when the network is disconnected. When resuming operation over the network, the monitoring terminal transmits to the monitoring program all the accumulated information and real-time monitoring continues.

The monitoring terminal can be used in various production control systems as a device that provides real information about the operation of the machine, both in local and network modes.

Thanks to the information received about the operation of equipment at the enterprise, the following important tasks can be solved:

- determination of equipment performance due to objective data accounting;

- Production optimization based on real data collected from process equipment control systems;

- accurate accounting of the work of specific operators of machine equipment;

- identification and timely response to the failure of individual monitoring terminals included in local groups, with the possibility of operational redistribution of areas of responsibility;

- protection of transmitted production information by encryption;

- making objective decisions on the re-equipment of production;

- improving the reliability of data storage.

The monitoring terminal is primarily focused on industrial applications, providing increased reliability of operation and storage of information.

The technical solution is industrially applicable because it uses industrially manufactured and industrially applicable resources.

Although this technical solution is described by a specific example of its implementation, this description is not limiting, but is provided only to illustrate and better understand the essence of the technical solution, the volume of which is determined by the attached formula.

Claims (1)

The monitoring terminal is designed as a case, inside of which there is a computing unit including a processor, internal memory, a microcontroller configured to update the internal memory, a Wi-Fi module, a GSM communication module, a state synchronization signal conditioning unit, an encryption unit, on the front housing panel there is a connector for connecting a removable memory card of large capacity, a touch display, keyboard, programmable interface unit, ETHERNET network interface unit, machine interface unit, wholesale unit isolated digital input-output channels of the analog input channel block, said block of machine interface unit optoisolated digital input-output channels and the unit of analog input channels intended for connection to machine tools with different control systems.

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