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WO2018156001A1 - Method for measuring and mapping the concentration of gases harmful to health in confined spaces - Google Patents

Method for measuring and mapping the concentration of gases harmful to health in confined spaces Download PDF

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Publication number
WO2018156001A1
WO2018156001A1 PCT/MX2017/000017 MX2017000017W WO2018156001A1 WO 2018156001 A1 WO2018156001 A1 WO 2018156001A1 MX 2017000017 W MX2017000017 W MX 2017000017W WO 2018156001 A1 WO2018156001 A1 WO 2018156001A1
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WIPO (PCT)
Prior art keywords
nodes
specified
gases
concentration
measurement
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Ceased
Application number
PCT/MX2017/000017
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Spanish (es)
French (fr)
Inventor
Jesús Roberto SITTEN AYALA
Eduardo RODARTE LEYVA
Hiram GUTIÉRREZ LIZÁRRAGA
Dino Alejandro PARDO GUZMÁN
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Priority to PCT/MX2017/000017 priority Critical patent/WO2018156001A1/en
Publication of WO2018156001A1 publication Critical patent/WO2018156001A1/en
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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Classifications

    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21F—SAFETY DEVICES, TRANSPORT, FILLING-UP, RESCUE, VENTILATION, OR DRAINING IN OR OF MINES OR TUNNELS
    • E21F17/00—Methods or devices for use in mines or tunnels, not covered elsewhere
    • E21F17/18—Special adaptations of signalling or alarm devices
    • G—PHYSICS
    • G08—SIGNALLING
    • G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
    • G08B21/00—Alarms responsive to a single specified undesired or abnormal condition and not otherwise provided for
    • G08B21/02—Alarms for ensuring the safety of persons
    • G08B21/12—Alarms for ensuring the safety of persons responsive to undesired emission of substances, e.g. pollution alarms
    • G08B21/14—Toxic gas alarms
    • G—PHYSICS
    • G08—SIGNALLING
    • G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
    • G08B25/00—Alarm systems in which the location of the alarm condition is signalled to a central station, e.g. fire or police telegraphic systems
    • G08B25/01—Alarm systems in which the location of the alarm condition is signalled to a central station, e.g. fire or police telegraphic systems characterised by the transmission medium
    • G08B25/10—Alarm systems in which the location of the alarm condition is signalled to a central station, e.g. fire or police telegraphic systems characterised by the transmission medium using wireless transmission systems

Definitions

  • the present invention has its preponderant field of application in safety practices and protocols in the Mining Industry, specifically where activities are carried out in confined spaces with risk of poisoning due to the presence of harmful gases or explosion by explosive mixtures of gases in the environment.
  • Patent No. US20150163652 claims a mining gas monitoring system and method, consisting of a wireless network for two-way voice and data communication, a plurality of nodes that provide the information for gas monitoring, and includes the collection of data emitted by the nodes to monitor the percentage of gas in the environment with which, if the gas exceeds a preset threshold, a visual and audible alarm is generated.
  • Chinese Patent No. 102228319 describes an intelligent helmet consisting of a lamp, multi-sensors, a camera and a data processing module. So the helmet detects toxic gas concentrations, dust concentration, temperature, humidity and video signals in an underground environment in real time, and the processed data is sent to an underground communication substation by the wireless communication module.
  • a portable gas detector is described in patent No. GB2529000, which comprises a sensor configured to detect one or more gases in an enclosed space and to generate an alert in response to an alarm condition.
  • the portable gas detector may include a light source, a light detector arranged to receive light from the light source that has passed through gases in the closed space and a spectrum analyzer.
  • the light source can be adjustable to adjust the wavelength of your Light, to allow the detection of different gases.
  • invention No. CN103622188 details an intelligent waist belt applicable to underground tunnel operators.
  • the intelligent waist belt consists of an intelligent monitoring module fixed to the waist body, in which the intelligent control module is made up of a ZigBee module, a power module, a temperature-humidity sensor, an oxygen sensor , a gyroscope, a buzzer and an LED (light emitting diode) that are arranged in a leather belt holster.
  • the intelligent control module is made up of a ZigBee module, a power module, a temperature-humidity sensor, an oxygen sensor , a gyroscope, a buzzer and an LED (light emitting diode) that are arranged in a leather belt holster.
  • Figure 1 is a schematic diagram of the Method of Measuring and Mapping Concentration of Gases Harmful to Health in Confined Spaces of the present invention. From the Environment in a given Confined Space [101], data from different variables [102] are obtained to pre-process them
  • Critical Zone Mapping according to the location of the anomaly detection for later, based on a predefined database [107] execute a crisis management method [106] where it is decided what actions to take in reference to the situation .

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  • Engineering & Computer Science (AREA)
  • Mining & Mineral Resources (AREA)
  • General Health & Medical Sciences (AREA)
  • Toxicology (AREA)
  • Health & Medical Sciences (AREA)
  • Business, Economics & Management (AREA)
  • Emergency Management (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Environmental & Geological Engineering (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Geology (AREA)
  • Emergency Alarm Devices (AREA)

Abstract

The present invention describes a method for measuring and mapping the concentration of harmful and explosive gases present in confined spaces in mines. Said method combines one or more nodes with sensors for different environmental variables that can communicate wirelessly with other nodes. Said nodes execute a pre-processing to analyse data concerning the measured values obtained to determine risks of high concentrations of toxic and flammable gases, explosions and/or fires or cave-ins. A central node receives information from each node and selects a crisis-management protocol corresponding to each scenario detected based on a pre-determined database.

Description

MÉTODO DE MEDICIÓN Y MAPEO DE CONCENTRACIÓN DE GASES NOCIVOS PARA LA SALUD EN ESPACIOS CONFINADOS  METHOD OF MEASUREMENT AND MAPPING OF CONCENTRATION OF HARMFUL GASES FOR HEALTH IN CONFINED SPACES

CAMPO TÉCNICO DE LA INVENCIÓN TECHNICAL FIELD OF THE INVENTION

La presente invención tiene su campo de aplicación preponderante en practicas y protocolos de seguridad en la Industria de Minería, específicamente donde se realizan actividades en espacios confinados con riesgo a intoxicación por presencia de gases nocivos o explosión por mezclas explosivas de gases en el ambiente.  The present invention has its preponderant field of application in safety practices and protocols in the Mining Industry, specifically where activities are carried out in confined spaces with risk of poisoning due to the presence of harmful gases or explosion by explosive mixtures of gases in the environment.

ANTECEDENTES DE LA INVENCIÓN BACKGROUND OF THE INVENTION

Una de las preocupaciones más grandes para la industria de Minería es garantizar la integridad sus trabajadores, sin embargo, las difíciles condiciones de seguridad industrial dentro del sector minero se ven reflejadas en los altos índices de accidentalidad y riesgos que afectan directamente a los trabajadores, debido en gran parte a la situación inestable y cambiante que se presentan dentro de las minas, especialmente subterráneas. Dichos ambientes se convierten en lugares propicios para formación de atmósferas explosivas como un detonante invisible y silencioso para el cual existen limitados mecanismos de detección. Para tratar con el riesgo tóxico y peligro de explosión son útiles los sistemas de detección de gases. En algunas minas es usual detectar gases explosivos de forma manual, en donde el operador es el encargado de recorrer la mina y alertar de los niveles de estos gases; sin embargo, estos métodos tradicionales de medición otorgan una barrera para el análisis de ocurrencia de riesgos de accidentes como contaminación, envenenamiento, sofocamientos o explosiones por concentraciones excesivas de estos gases. Los esfuerzos tecnológicos se centran en la búsqueda de soluciones autónomas para el sensado y alerta de distintos tipos de gases, una visión interesante es el manejo de información por red de sensores inalámbrico como lo revela la presente invención en su descripción. One of the biggest concerns for the mining industry is to guarantee the integrity of its workers, however, the difficult industrial security conditions within the mining sector are reflected in the high accident rates and risks that directly affect the workers, due largely to the unstable and changing situation that occur within the mines, especially underground. These environments become favorable places for the formation of explosive atmospheres as an invisible and silent trigger for which there are limited detection mechanisms. Gas detection systems are useful for dealing with toxic risk and explosion hazard. In some mines it is usual to detect explosive gases manually, where the operator is in charge of touring the mine and alerting the levels of these gases; However, these traditional measurement methods provide a barrier for the analysis of the occurrence of risks of accidents such as pollution, poisoning, suffocation or explosions due to excessive concentrations of these gases. The technological efforts are focused on the search for autonomous solutions for the sensing and warning of different types of gases, an interesting vision is the management of information by wireless sensor network as revealed by the present invention in its description.

A continuación, se presenta una breve descripción de patentes actuales en relación al tema, con el fin de resaltar la actividad inventiva de la presente invención. La patente No. US20150163652 reclama un sistema y método de monitoreo de gases en minería, conformado por una red inalámbrica de comunicación de voz y datos bidireccional, una pluralidad de nodos que suministran la información para el monitoreo de gases, e incluye la recopilación de los datos emitidos por los nodos para monitorear el porcentaje de gas en el ambiente con el que, si el gas sobre pasa un umbral preestablecido, se genera una alarma visual y audible. Similarmente la patente China No. 102228319 describe un casco inteligente conformado por una lámpara, multi-sensores, una cámara y un módulo de procesamiento de datos. De manera que el casco detecta concentraciones de gases tóxicos, concentración de polvo, temperatura, humedad y las señales de video en un entorno subterráneo en tiempo real, y los datos procesados son enviados a una subestación de comunicación subterránea por el módulo de comunicación inalámbrico. The following is a brief description of current patents in relation to the subject, in order to highlight the inventive activity of this invention. Patent No. US20150163652 claims a mining gas monitoring system and method, consisting of a wireless network for two-way voice and data communication, a plurality of nodes that provide the information for gas monitoring, and includes the collection of data emitted by the nodes to monitor the percentage of gas in the environment with which, if the gas exceeds a preset threshold, a visual and audible alarm is generated. Similarly, Chinese Patent No. 102228319 describes an intelligent helmet consisting of a lamp, multi-sensors, a camera and a data processing module. So the helmet detects toxic gas concentrations, dust concentration, temperature, humidity and video signals in an underground environment in real time, and the processed data is sent to an underground communication substation by the wireless communication module.

Se describe un detector de gas portátil en la patente No. GB2529000, que comprende un sensor configurado para detectar uno o más gases en un espacio cerrado y para generar una alerta en respuesta a una condición de alarma. El detector de gas portátil puede incluir una fuente de luz, un detector de luz dispuesto para recibir luz desde la fuente de luz que ha pasado a través de gases en el espacio cerrado y un analizador de espectro. La fuente de luz puede ser ajustable para ajusfar la longitud de onda de su Luz, para permitir la detección de diferentes gases.  A portable gas detector is described in patent No. GB2529000, which comprises a sensor configured to detect one or more gases in an enclosed space and to generate an alert in response to an alarm condition. The portable gas detector may include a light source, a light detector arranged to receive light from the light source that has passed through gases in the closed space and a spectrum analyzer. The light source can be adjustable to adjust the wavelength of your Light, to allow the detection of different gases.

Por otro lado, la patente No. CN103622188 detalla un cinturón de cintura inteligente aplicable a los operadores de túnel subterráneo. El cinturón de cintura inteligente consta de un módulo de monitorización inteligente fijado en el cuerpo de la cintura, en el que el módulo de control inteligente está conformado de un módulo ZigBee, un módulo de alimentación, un sensor temperatura-humedad, Un sensor de oxigeno, un giroscopio, un zumbador y un LED (diodo emisor de luz) que están dispuestos en una funda de cinturón de cuero. DESCRIPCION DETALLADA DE LA INVENCIÓN On the other hand, patent No. CN103622188 details an intelligent waist belt applicable to underground tunnel operators. The intelligent waist belt consists of an intelligent monitoring module fixed to the waist body, in which the intelligent control module is made up of a ZigBee module, a power module, a temperature-humidity sensor, an oxygen sensor , a gyroscope, a buzzer and an LED (light emitting diode) that are arranged in a leather belt holster. DETAILED DESCRIPTION OF THE INVENTION

Los detalles característicos de la presente invención, se muestran claramente en la siguiente descripción y en las figuras que se acompañan, las cuales se mencionan a manera de ejemplo, por lo que no deben considerarse como una limitante para dicha invención. The characteristic details of the present invention are clearly shown in the following description and in the accompanying figures, which are mentioned by way of example, and therefore should not be considered as a limitation for said invention.

Breve descripción de las figuras: La figura 1 es un diagrama esquemático del Método de Medición y Mapeo de Concentración de Gases Nocivos para la Salud en Espacios Confinados de la presente invención. A partir del Ambiente en un Espacio Confinado [101] determinado se obtienen datos de distintas variables [102] para pre-procesarlosBrief description of the figures: Figure 1 is a schematic diagram of the Method of Measuring and Mapping Concentration of Gases Harmful to Health in Confined Spaces of the present invention. From the Environment in a given Confined Space [101], data from different variables [102] are obtained to pre-process them

[103] y obtener concentración de gases específicos, humedad relativa, ruido acústico, vibraciones en paredes y suelo. Si el valor de alguna de las variables mencionadas sobresale un limite determinado [104], entonces se realiza un[103] and obtain concentration of specific gases, relative humidity, acoustic noise, vibrations in walls and floor. If the value of any of the mentioned variables exceeds a certain limit [104], then a

Mapeo de Zonas Criticas [105] según la localización de la detección de anomalía para después, con base en una base de datos predefinida [107] ejecutar un método de gestión de crisis [106] donde se decida qué acciones tomar en referencia a la situación. Critical Zone Mapping [105] according to the location of the anomaly detection for later, based on a predefined database [107] execute a crisis management method [106] where it is decided what actions to take in reference to the situation .

Claims

REIVINDICACIONES La presente invención reclama: CLAIMS The present invention claims: 1.- Método de medición y mapeo de concentración de gases nocivos para la salud en espacios confinados de minas, conformado por la combinación de dispositivos y técnicas de análisis de datos proporcionados por distintos nodos de adquisición de datos, caracterizado por a.-Uno o más nodos conformados por un microcontrolador integran sensores de variables ambientales para medir al menos un gas específico, temperatura, humedad relativa, ruido acústico, vibraciones de paredes y/o suelo, y tienen capacidad de envío inalámbrico de datos para intercomunicación con otros nodos. b.- P re-procesamiento por parte de dichos nodos para analizar datos referentes a distintas variables del ambiente en espacio confinado para obtener en tiempo real: i) temperatura, ¡i) nivel y velocidad de concentración de gases específicos por unidad de volumen, iii) vibraciones en suelo y paredes, iv) niveles acústicos, c- Nodo central encargado de recepción de datos inalámbricos enviados por cada uno de los nodos (N1, N2 Nx), realiza un mapeo geográfico de los mismos, ejecuta un algoritmo de toma de decisiones para determinar método de gestión de crisis referente a situaciones de riesgo predefinidas para distintos escenarios de propagación de gases nocivos, explosiones o derrumbes.  1.- Method for measuring and mapping the concentration of gases harmful to health in confined spaces of mines, consisting of the combination of devices and data analysis techniques provided by different data acquisition nodes, characterized by a.-One or more nodes made up of a microcontroller integrate sensors of environmental variables to measure at least one specific gas, temperature, relative humidity, acoustic noise, vibrations of walls and / or floor, and have the ability to send wireless data for intercommunication with other nodes. b.- P re-processing by said nodes to analyze data referring to different environment variables in confined space to obtain in real time: i) temperature, i) level and speed of concentration of specific gases per unit volume, iii) vibrations in floor and walls, iv) acoustic levels, c- Central node in charge of receiving wireless data sent by each of the nodes (N1, N2 Nx), performs a geographical mapping of them, executes a take algorithm of decisions to determine crisis management method regarding predefined risk situations for different scenarios of propagation of harmful gases, explosions or landslides. 2.- Método como el especificado en la reivindicación 1, donde se incluye medición de velocidad y dirección del viento para determinar la dirección y velocidad de propagación de los gases. 2. Method as specified in claim 1, which includes measurement of wind speed and direction to determine the direction and speed of propagation of gases. 3.- Método como el especificado en reivindicación 2, donde se incluye medición de humedad relativa para incrementar la precisión de detección de gases en distintos tipos de ambientes. 3. Method as specified in claim 2, wherein relative humidity measurement is included to increase the accuracy of gas detection in different types of environments. 4. - Método de gestión de crisis como el especificado en Reivindicación 1, donde ias personas que trabajan en ios espacios monitoreados portan un nodo de localización geográfica móvil que son considerados para determinar ruta de evacuación segura. 4. - Crisis management method as specified in Claim 1, where the people working in the monitored spaces carry a mobile geographic location node that is considered to determine a safe evacuation route. 5. - Método como el especificado en Reivindicación 4, donde el nodo portátil que llevan los trabajadores cumple además con alguna de las siguientes funciones: i) Medición de concentración de gases, ii) Medición de temperatura, iii) sensor angular absoluto, iv) Medición de ruido acústico. 5. - Method as specified in Claim 4, wherein the portable node carried by the workers also fulfills one of the following functions: i) Measurement of gas concentration, ii) Temperature measurement, iii) absolute angular sensor, iv) Acoustic noise measurement. 6. - Método como el especificado en reivindicación 5, donde el sensor angular absoluto se utiliza para determinar el estado del minero: i) de píe, ii) acostado horizontal, iii) tendido/recargado. 6. - Method as specified in claim 5, wherein the absolute angular sensor is used to determine the status of the miner: i) standing, ii) lying flat, iii) laying / reloading. 7. - Método como el especificado en Reivindicación 1 , donde la intercomunicación entre nodos se lleva a cabo con alguna de los siguientes protocolos de comunicación inalámbrica: i) WIFI, ii) ZigBee, iii) Bluetooth. 7. - Method as specified in Claim 1, wherein intercom between nodes is carried out with any of the following wireless communication protocols: i) WIFI, ii) ZigBee, iii) Bluetooth.
PCT/MX2017/000017 2017-02-22 2017-02-22 Method for measuring and mapping the concentration of gases harmful to health in confined spaces Ceased WO2018156001A1 (en)

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Cited By (11)

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US11636870B2 (en) 2020-08-20 2023-04-25 Denso International America, Inc. Smoking cessation systems and methods
US11760169B2 (en) 2020-08-20 2023-09-19 Denso International America, Inc. Particulate control systems and methods for olfaction sensors
US11760170B2 (en) 2020-08-20 2023-09-19 Denso International America, Inc. Olfaction sensor preservation systems and methods
US11813926B2 (en) 2020-08-20 2023-11-14 Denso International America, Inc. Binding agent and olfaction sensor
US11828210B2 (en) 2020-08-20 2023-11-28 Denso International America, Inc. Diagnostic systems and methods of vehicles using olfaction
US11881093B2 (en) 2020-08-20 2024-01-23 Denso International America, Inc. Systems and methods for identifying smoking in vehicles
US11932080B2 (en) 2020-08-20 2024-03-19 Denso International America, Inc. Diagnostic and recirculation control systems and methods
US12017506B2 (en) 2020-08-20 2024-06-25 Denso International America, Inc. Passenger cabin air control systems and methods
US12251991B2 (en) 2020-08-20 2025-03-18 Denso International America, Inc. Humidity control for olfaction sensors
US12269315B2 (en) 2020-08-20 2025-04-08 Denso International America, Inc. Systems and methods for measuring and managing odor brought into rental vehicles
US12377711B2 (en) 2020-08-20 2025-08-05 Denso International America, Inc. Vehicle feature control systems and methods based on smoking

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Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US11636870B2 (en) 2020-08-20 2023-04-25 Denso International America, Inc. Smoking cessation systems and methods
US11760169B2 (en) 2020-08-20 2023-09-19 Denso International America, Inc. Particulate control systems and methods for olfaction sensors
US11760170B2 (en) 2020-08-20 2023-09-19 Denso International America, Inc. Olfaction sensor preservation systems and methods
US11813926B2 (en) 2020-08-20 2023-11-14 Denso International America, Inc. Binding agent and olfaction sensor
US11828210B2 (en) 2020-08-20 2023-11-28 Denso International America, Inc. Diagnostic systems and methods of vehicles using olfaction
US11881093B2 (en) 2020-08-20 2024-01-23 Denso International America, Inc. Systems and methods for identifying smoking in vehicles
US11932080B2 (en) 2020-08-20 2024-03-19 Denso International America, Inc. Diagnostic and recirculation control systems and methods
US12017506B2 (en) 2020-08-20 2024-06-25 Denso International America, Inc. Passenger cabin air control systems and methods
US12251991B2 (en) 2020-08-20 2025-03-18 Denso International America, Inc. Humidity control for olfaction sensors
US12269315B2 (en) 2020-08-20 2025-04-08 Denso International America, Inc. Systems and methods for measuring and managing odor brought into rental vehicles
US12377711B2 (en) 2020-08-20 2025-08-05 Denso International America, Inc. Vehicle feature control systems and methods based on smoking

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