RU2785360C1 - System for control and collection of information during work with increased danger - Google Patents

Abstract

FIELD: protection means.

SUBSTANCE: invention relates to means of protection. The system for monitoring and collecting information during work with increased danger consists of a data acquisition and transmission module and a data converter module connected to each other via a radio channel and consisting of separate cases with printed circuit boards and central processors located inside them. A temperature sensor, a pressure sensor and a humidity sensor, a transceiver, a battery charge controller with a battery connected to it are connected to the digital bus of the central processor of the data collection and transmission module through the galvanic isolation module. A gas contamination sensor for propane, isobutane and natural gas is connected to the analogue bus through a galvanic isolation module. Addressable LEDs are connected to the digital bus. A wireless battery charger is connected to the battery charge controller. A transceiver module and a protocol conversion module are connected to the digital bus of the central processor of the data converter module through the galvanic isolation module. The battery charge module is connected to the digital bus.

EFFECT: possibility of identifying hazards is achieved in order to minimize the risks of threats to the life and health of an employee in the performance of his job duties.

1 cl, 5 dwg

Description

The invention relates to a means of collective protection used to minimize the health risks of workers when performing high-risk work.

On the territories of compressor stations and objects of the linear part of main gas pipelines (oil pipelines, condensate pipelines, etc.), work with increased danger is carried out: gas hazardous, fire and earthworks. When carrying out these works, it is impossible to constantly monitor the air environment in the work area. Also at the place of work, there is a need to control the temperature regime, humidity and pressure, in order to comply with the rules of labor protection for workers, rest and heating regimes for workers document [1].

A device for measuring environmental data when performing hazardous work by an employee is known [2]. The disadvantages of this device are:

- Lack of transmission and storage of data on the state of the environment about the ambient temperature, magnetic field strength and the presence of explosive and flammable gases;

- This device is local (without information transfer);

- no humidity sensor;

- lack of pressure sensor;

- lack of wireless battery charging;

- the absence of settings for explosive substances (light hydrocarbons, heavy fractions of hydrocarbons and other mixtures of gases and volatile explosive liquids (flammable liquids)), ambient temperature, under the influence of which there is a risk of harm to health and the time spent by an employee at sub-zero / plus temperatures;

- lack of color indication of modes by LEDs;

- lack of indication control in case of emergency situations from outside, by sending a signal from a remote device (personal computer or server).

The objective of the invention is to create safe working conditions, preserve the life and health of workers in the production of work:

- under low-temperature weather conditions;

- in the oil, gas industry and mining, where there is a risk of release of explosive and flammable gases and flammable liquids into the working area;

- in electrical installations (on power lines (power lines), as well as where there is a risk of voltage appearing above the worker's head (when the worker is lifted under live parts);

- carried out in conditions of insufficient visibility (snow, fog, twilight, etc.);

- monitoring the actions of employees performing work on newly commissioned construction sites, scheduled repairs, maintenance of equipment, works to localize accidents and perform hazardous work (gas hazardous, fire and earthworks).

The technical result is the identification of hazards, the collection of information in order to minimize the risks of threats to the life and health of an employee when he performs work with increased danger and under low-temperature / high-temperature weather conditions, as well as an analysis of the quality of the work, based on the obtained data stored on a remote device ( personal computer or server).

The invention is shown in FIG. 1-2. The block diagram of the operation of the device is shown in Fig. 3-4. The scheme for organizing data transfer is shown in Fig.5

The invention is a system for collecting information in real time and storing it on a personal computer (AWP) or server and consists of a data collection and transmission module (MSTD) 1, a data conversion module (MTD) 2 and a SCADA system (SCADA) 3.

As MRTD 1, patent No. 198230 "Smart Helmet" is used with modified:

a) algorithms:

- using MPD 2 to enter into ISMT 1 constants for gas contamination thresholds (for a wide range of device use when working with various combustible hydrocarbons and mixtures of flammable liquids);

- comparison of the residence time and ambient temperature at the place of work from the given conditions;

- processing additional parameters for data collection (humidity, pressure, battery charge);

- transfer of the collected information to MTD 2 for storage and its display on SCADA 3;

- notification of emergency situations by receiving a signal from SCADA 3 through MTD 2.

b) improved technical characteristics:

- an improved coating of elements (compound) was applied for the insulating properties of elements interacting with the environment;

- applied the division of zones inside the helmet, according to their interaction with the environment;

- Improved sensor binding support system;

- a different type (more reliable and capacious) of the rechargeable battery (ACB) was used;

- a wireless battery charging system is used;

- applied battery charge controller with support for wireless charging;

- a module was used for reading the battery charge by the central processing unit (CPU);

- used a wireless charger in a separate case;

- added with sensors: humidity, pressure, temperature of the processor board;

- supplemented with a module for transferring the collected information to MTD 2 using an encrypted transmission channel;

MRTD 1 consists of:

1.1 of patent No. 198230 "Smart helmet" including:

1.1.1 helmet shell

1.1.2 protective helmet cover;

1.1.3 battery;

1.1.4 PCB;

1.1.5 buzzer;

1.1.6 central processing unit;

1.1.7 humidity sensor;

1.1.8 address LEDs;

1.1.9 pressure sensor;

1.1.10 power buttons;

1.1.11 wireless battery charger;

1.1.12 magnetic field strength sensors;

1.1.13 gas sensors;

1.1.14 temperature sensors;

1.1.15 touch sensor;

1.1.16 battery charge module;

1.1.17 PCB temperature sensor;

1.1.18 sensor operation LEDs;

1.1.19 device operation LEDs;

1.1.20 battery charge LED;

1.1.21 information transmission module;

1.1.22 galvanic isolation module.

MRTD 1 consists of a helmet body (hard outer shell) 1.1.1 (Fig. 1-4) and elements attached to this body. On the inner side surfaces of the helmet body 1.1.1, addressable LEDs 1.1.8 in the amount of 8 pieces are fixed (Fig. 1), as well as a temperature sensor 1.1.14, a gas contamination sensor 1.1.13 and a humidity sensor 1.1.7. A magnetic field strength sensor 1.1.12 is fixed on the upper inner side. Address LEDs 1.1.8 are connected to the printed circuit board 1.1.4 by soldering with tin-lead solder and connected to the digital bus of the central processor 1.1.6. Inside the helmet shell 1.1.1 there is a protective cover 1.1.2, which restricts access to the device and prevents the user from interfering with its operation. On the protective cover of the helmet 1.1.2 there is a power button 1.1.10, a touch sensor 1.1.15 connected to the digital bus of the central processor 1.1.6 through a galvanic isolation module 1.1.22, a sensor operation LED 1.1.18, a device operation LED 1.1.19, battery charge LED 1.1.20 and wireless battery charger 1.1.11, which is connected to the battery charge module 1.1.16.

The magnetic field strength sensor 1.1.12 consists of a sensing element based on the Hall sensor and is connected to the printed circuit board 1.1.4 to the analog buses of the central processor 1.1.6 through the galvanic isolation module 1.1.22, which in turn contributes to real-time analysis of an open circuit and indication of the magnetic field strength around the helmet shell 1.1.1. If a magnetic field strength exceeding the norm is detected around the helmet, as well as an open circuit between the magnetic field strength sensor 1.1.12, the central processor 1.1.6 will generate a signal to the buzzer 1.1.5 and address LEDs 1.1.8, which will glow orange. By creating a symmetrical frequency of the sound pulse and the glow of the address LEDs 1.1.8, where the glow time will be 200 ms (0.2 sec), and the decay time will be 200 ms. The magnetic field strength signals are removed only after the employee is removed from the detection zone.

The temperature sensor 1.1.14 provides measurement of the ambient temperature and is connected to the printed circuit board 1.1.4 to the digital channel of the central processor 1.1.6 through the galvanic isolation module 1.1.22, which ensures control of the sensor circuit against breakage, malfunction or short circuit. The range of measured temperatures is from -55°C to +125°C, with an error of ±0.5°C. In case of an open circuit or a malfunction between the temperature sensor 1.1.14, the central processor 1.1.6 will generate a signal to the buzzer 1.1.9 and the address LEDs 1.1.8, which will glow blue. By creating an asymmetric frequency of the sound pulse and the glow of the address LEDs 1.1.8, where the glow time will be 500 ms (0.5 sec), and the decay time will be 200 ms (0.2 sec). In the algorithm of the central processor 1.1.6, the ambient temperature is fixed, when the temperature is less than or equal to the set temperature and when the timer set from SCADA 3 through MTD 2 is exceeded. When the set parameters are exceeded, the central processor 1.1.6 generates a signal to the buzzer 1.1.9 and address LEDs 1.1.8, which glow blue, creating an asymmetric frequency of the sound pulse and the glow of the address LEDs 1.1.8, where the glow time will be 3000 ms (3 sec), and the decay time will be 500 ms (0.5 sec). Sound buzzer 1.1.9 and address LEDs 1.1.8 will work until the temperature rises to room temperature (+18), which corresponds to the fact that the worker has left the zone of low temperature conditions and is in a warm room.

The principle of operation of the gas contamination sensor 1.1.13 is based on the change in resistance upon contact with the molecules of the gas being determined. Measuring range: Propane: 200-10000 ppm Isobutane: 200-10,000 ppm (0.46% LEL - 22.6% LEL, or 0.02 - 1% v/v), Natural gas: 200-10,000 ppm (0.46% LEL - 22.6% LEL, or 0.02 - 1% vol.) Gas sensor 1.1.13 is connected to the printed circuit board 1.1.4 with analog buses of the central processor 1.1.6 through the galvanic isolation module 1.1.22. Threshold data are set from SCADA 3 through MTD 2, which are taken into account by the central processor 1.1.6 when analyzing the environment in terms of gas contamination.In real time, the central processor 1.1.6 analyzes the open circuit and the increase in gas contamination around the helmet body 1.1.1, comparing the data with those specified from SCADA 3 through MTD 2. When open circuit between the gas contamination sensor 1.1.13 and the printed circuit board 1.1.4, the central processor 1.1.6 will generate a signal to the buzzer 1.1.9 and the address LEDs 1.1.8 will not serviceability, which glow red, creating an asymmetric frequency of the sound pulse and the glow of the address LEDs 1.1.8, where the glow time will be 500 ms (0.5 sec), and the decay time will be 200 ms (0.2 sec). If gas pollution is detected around the helmet that exceeds the minimum allowable values, the central processor 1.1.6 will generate a signal to the buzzer 1.1.9 and address LEDs 1.1.8, creating an asymmetric frequency of the sound pulse and the glow of the address LEDs 1.1.8, which glow red, where the glow time will be 1000 ms (1 sec), and the decay time will be 500 ms (0.5 sec). Signals are removed only after the employee is removed from the gas contamination zone.

Humidity sensor 1.1.7 is used to control the humidity of the ambient air when working in conditions of high and / or low temperatures. The humidity sensor 1.1.7 is connected to the printed circuit board 1.1.4 with the digital channel of the central processor 1.1.6 through the galvanic isolation module 1.1.22, which ensures control of the sensor circuit against breakage, malfunction or short circuit. The central processor 1.1.6 processes the received data from the humidity sensor 1.1.7 and transmits them through the information transmission module 1.1.21 to SCADA 3 via MTD 2.

The pressure sensor 1.1.9 is used to determine the ambient air pressure and height above sea level, while it is possible to reset the calculated height to determine the position of the helmet (the helmet is removed or is on the worker). Altitude reset is provided using SCADA 3 through MTD 2. Pressure sensor 1.1.9 is connected to the printed circuit board 1.1.4 to the digital channel of the central processor 1.1.6 through the galvanic isolation module 1.1.22, which ensures control of the sensor circuit from open, malfunction or short circuit . The pressure is recalculated in mm Hg by the central processor 1.1.6, the recalculated values are transmitted using the information transfer module 1.1.21 to SCADA 3 via MTD 2. Pressure data are used in the same way as humidity to determine the time spent by an employee in the zone of low and / or elevated temperatures.

Information transmission module 1.1.21 is designed to communicate via radio channel with MPD 2 to transmit information: temperature, humidity, pressure, gas pollution, helmet height level relative to a given zero, magnetic field strength, gas pollution thresholds, printed circuit board temperature 1.1.4, charge level battery, working out the setpoint for temperature and time, the status of the helmet illumination, etc. It is also possible to control from SCADA 3 via MTD 2: settings for gas content thresholds, activation of emergency notification of the helmet in case of emergencies to warn the employee, temperature setting, time spent at the designated temperature, helmet height zero setting.

MTD 2 is designed to exchange information with MRTD 1. MTD 2 is connected to MRTD 1 (1 to 247 devices). It converts encrypted information from MRTD 1 and transfers it using the ModbusTCP/IP protocol to SCADA 3.

MTD 2 consists of:

2.1 module of reception and transmission;

2.2 battery;

2.3 power buttons;

2.4 PCB;

2.5 protocol conversion modules;

2.6 charge connector;

2.7 battery charge module;

2.8 work LED;

2.9. CPU;

2.10 fuse;

2.11 galvanic isolation module;

2.13 case.

Case 2.13 of MTD 2 is used for installation of printed circuit board 2.4 with connected to it elements included in MTD 2 and serves to protect MTD 2 from external influences.

The transmit-receive module 2.1 is used to communicate with the information transmission module 1.1.21 of the MRTD 1 via a secure information transmission channel. It consists of a processor, signal amplifiers, an antenna module and a protocol matching unit. Data from MRTD 1 is transmitted over a secure channel and using encryption over a distance of up to 1000 meters (line-of-sight), which will ensure reliable communication with MTD 2. The module for receiving and transmitting 2.1 uses a bidirectional communication mode with the information transmission module 1.1.21 of MRTD 1 and operates at a frequency of 2.45 GHz using encrypted transmission data. Maximum output power 0 dBm, antenna gain: 2dBm. The transmit/receive module 2.1 is connected to the digital bus of the central processor 2.9 by soldering with tin-lead solder to the printed circuit board 2.4 through the galvanic isolation module 2.11.

Battery 2.2 is connected to battery charge module 2.7. The battery charge module 2.7 monitors the charge, discharge of the battery 2.2, converts the voltage to power all the elements of the MPD 2 and connects to them through the power button 2.3. The battery charge module 2.7 is connected to the charge connector 2.6 through fuse 2.10. On the battery charge module 2.7 there is an indication of the process of charging the battery 2.2. The battery charge module 2.7 is also connected to the CPU digital bus 2.9 to communicate the charge level of the battery 2.2 by tin-lead soldering to the printed circuit board 2.4. The 2.7 battery charge module converts the voltage of the 2.6 charge connector supplied to the input and converts the voltage from 7 to 42 volts.

The protocol conversion module 2.5 converts the received encrypted information from the MRTD 1 through the receive-transmit module 2.1 into the ModbusTCP / IP protocol for transmission to SCADA 3. The protocol conversion module 2.5 is connected to the digital bus of the central processor 2.9 by soldering with tin-lead solder to the printed circuit board 2.4 , through the galvanic isolation module 2.11.

SCADA 3 is a software used to convert information coming from ISMT 1 through MTD 2 into an intuitive human-machine interface to control the work of an employee when performing work. SCADA 3 is selected based on the following factors: 1. ModbusTCP/IP support via OPC server; 2. The number of tags for the content of the database (selected from the number of ISMT 1); 3. Storage time of information coming from ISMT 1.

The invention is a system consisting of complex technical devices serving to perform specific tasks, namely:

1. Analysis of the air environment using a gas sensor;

2. Analysis of outdoor air temperature;

3. Analysis of the magnetic field strength;

4. Atmospheric pressure analysis;

5. Analysis of ambient air humidity;

6. Calculation of height above sea level;

7. Transfer of collected information;

8. Storage and display of information coming from sensors and calculated information based on mathematical and logical calculations to analyze and control the work performed by the employee;

9. Building graphs with the help of incoming information;

10. Keeping a log of events to analyze and control the work performed by an employee;

11. Formation of an emergency warning light and sound alarm to attract attention.

The algorithms include:

1. Constant analysis of the air environment and when the thresholds set using the gas content settings are exceeded, a light and sound alarm will work, which allows you to attract the user's attention;

2. Constant analysis and comparison of the ambient temperature, at or below -30 degrees and after 15 minutes, a light and sound alert will work, and turn off only after the worker moves into an area with a room temperature above +18 degrees;

3. Permanent analysis and comparison of the magnetic field strength. When the threshold is reached, a light and sound alert will work;

4. Continuous analysis of air humidity;

5. Constant analysis of atmospheric pressure and its conversion to mmHg;

6. Calculation of altitude above sea level;

7. Calculation of battery charge;

8. Encryption / decryption of transmitted data;

9. Transfer of information;

10. Information conversion;

11. Enabling and disabling the light indication of the helmet for work during low visibility;

12. Constant monitoring of sensors for their serviceability. If a malfunction (break in communication lines) is detected, a light and sound alert is activated;

13. Control of the touch sensor on and off the light indication.

List of sources:

1. Instruction on labor protection when performing work at low temperatures No. IVR-003-19 (developed on the basis of Methodological recommendations MP 2.2.7.2129-06 "Work and rest regime for workers in cold weather in an open area or in unheated premises");

2. RF patent No. RU198230U1 "Smart helmet" IPC A42B 3/04.

Claims (1)

The system for monitoring and collecting information during work with increased danger, consisting of a data acquisition and transmission module and a data converter module connected to each other via a radio channel and consisting of separate cases with printed circuit boards and central processors located inside them, while to the digital bus of the central processor of the data collection and transmission module, a temperature sensor, a pressure sensor and a humidity sensor, a transceiver, a battery charge controller with a battery connected to it, are connected through the galvanic isolation module, a gas contamination sensor for propane, isobutane and natural gas is connected to the analog bus through the galvanic isolation module, addressable LEDs are connected to the digital bus, a wireless battery charging unit is connected to the battery charge controller; a transceiver module and a protocol conversion module are connected to the digital bus of the central processor of the data converter module through a galvanic isolation module, a battery charge module is connected to the digital bus.

Images