KR101663572B1 - Monitoring system of working environment for ensuring safety of workers - Google Patents
Monitoring system of working environment for ensuring safety of workers Download PDFInfo
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- KR101663572B1 KR101663572B1 KR1020160038600A KR20160038600A KR101663572B1 KR 101663572 B1 KR101663572 B1 KR 101663572B1 KR 1020160038600 A KR1020160038600 A KR 1020160038600A KR 20160038600 A KR20160038600 A KR 20160038600A KR 101663572 B1 KR101663572 B1 KR 101663572B1
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- monitoring module
- operator
- environment monitoring
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- 238000012544 monitoring process Methods 0.000 title claims abstract description 89
- 238000004891 communication Methods 0.000 claims abstract description 53
- 238000001514 detection method Methods 0.000 claims abstract description 31
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims abstract description 13
- 239000001301 oxygen Substances 0.000 claims abstract description 13
- 229910052760 oxygen Inorganic materials 0.000 claims abstract description 13
- 239000007789 gas Substances 0.000 claims abstract description 9
- 230000007613 environmental effect Effects 0.000 claims description 20
- 230000008859 change Effects 0.000 claims description 11
- 238000000034 method Methods 0.000 claims description 10
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 claims description 4
- RWSOTUBLDIXVET-UHFFFAOYSA-N Dihydrogen sulfide Chemical compound S RWSOTUBLDIXVET-UHFFFAOYSA-N 0.000 claims description 4
- 229910002091 carbon monoxide Inorganic materials 0.000 claims description 4
- 238000006243 chemical reaction Methods 0.000 claims description 4
- 229910000037 hydrogen sulfide Inorganic materials 0.000 claims description 4
- 230000004044 response Effects 0.000 claims description 4
- 230000035939 shock Effects 0.000 claims 1
- 239000003570 air Substances 0.000 description 11
- 238000005286 illumination Methods 0.000 description 11
- 230000005611 electricity Effects 0.000 description 4
- 230000006870 function Effects 0.000 description 4
- 206010003497 Asphyxia Diseases 0.000 description 3
- 206010017740 Gas poisoning Diseases 0.000 description 3
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 description 3
- 208000027418 Wounds and injury Diseases 0.000 description 3
- 229910052744 lithium Inorganic materials 0.000 description 3
- 229920000642 polymer Polymers 0.000 description 3
- 239000012080 ambient air Substances 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000002093 peripheral effect Effects 0.000 description 2
- 239000002341 toxic gas Substances 0.000 description 2
- 230000000007 visual effect Effects 0.000 description 2
- 208000005374 Poisoning Diseases 0.000 description 1
- 230000001133 acceleration Effects 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 238000003915 air pollution Methods 0.000 description 1
- 230000003111 delayed effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 231100000566 intoxication Toxicity 0.000 description 1
- 230000035987 intoxication Effects 0.000 description 1
- 230000014759 maintenance of location Effects 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 238000005192 partition Methods 0.000 description 1
- 231100000572 poisoning Toxicity 0.000 description 1
- 230000000607 poisoning effect Effects 0.000 description 1
- 238000006722 reduction reaction Methods 0.000 description 1
- 239000007779 soft material Substances 0.000 description 1
- 231100000331 toxic Toxicity 0.000 description 1
- 230000002588 toxic effect Effects 0.000 description 1
Images
Classifications
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06Q—INFORMATION AND COMMUNICATION TECHNOLOGY [ICT] SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES; SYSTEMS OR METHODS SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES, NOT OTHERWISE PROVIDED FOR
- G06Q50/00—Information and communication technology [ICT] specially adapted for implementation of business processes of specific business sectors, e.g. utilities or tourism
- G06Q50/10—Services
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06Q—INFORMATION AND COMMUNICATION TECHNOLOGY [ICT] SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES; SYSTEMS OR METHODS SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES, NOT OTHERWISE PROVIDED FOR
- G06Q50/00—Information and communication technology [ICT] specially adapted for implementation of business processes of specific business sectors, e.g. utilities or tourism
- G06Q50/10—Services
- G06Q50/26—Government or public services
- G06Q50/265—Personal security, identity or safety
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J7/02—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries for charging batteries from ac mains by converters
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L51/00—User-to-user messaging in packet-switching networks, transmitted according to store-and-forward or real-time protocols, e.g. e-mail
- H04L51/04—Real-time or near real-time messaging, e.g. instant messaging [IM]
-
- H04W4/008—
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
- H04W4/12—Messaging; Mailboxes; Announcements
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- Business, Economics & Management (AREA)
- Engineering & Computer Science (AREA)
- Tourism & Hospitality (AREA)
- Marketing (AREA)
- Strategic Management (AREA)
- Signal Processing (AREA)
- Health & Medical Sciences (AREA)
- Economics (AREA)
- General Health & Medical Sciences (AREA)
- Human Resources & Organizations (AREA)
- Computer Networks & Wireless Communication (AREA)
- Primary Health Care (AREA)
- Theoretical Computer Science (AREA)
- Physics & Mathematics (AREA)
- General Business, Economics & Management (AREA)
- General Physics & Mathematics (AREA)
- Educational Administration (AREA)
- Power Engineering (AREA)
- Computer Security & Cryptography (AREA)
- Development Economics (AREA)
- Alarm Systems (AREA)
Abstract
Description
The present invention relates to a system for preventing a worker from accident in a closed work environment and quickly rescuing a worker when an accident occurs, The present invention relates to a work environment monitoring system for securing the safety of an operator to prevent a choking accident or a gas poisoning accident, and to send a rescue request automatically in the event of an accident so that a rapid structure can be achieved.
Safety problems in the workplace are emerging as a result of frequent occurrence of choking or gas intoxication in closed work environments such as offshore structures.
Accordingly, there is an increasing tendency to apply real-time communication between a crew, a worker, and a manager by applying the latest R & D technology into a complex structure such as an offshore plant.
In order to solve these problems, many techniques have been devised for managing the working environment by providing a noxious gas detection device in the workplace. However, in an environment in which a plurality of partitions such as a ship are configured, there is a limit to providing fixed detection devices in various places .
SUMMARY OF THE INVENTION Accordingly, the present invention has been made in view of the above circumstances, and it is an object of the present invention to provide a portable environment monitoring module that is interlocked with a smart phone possessed by a worker to periodically measure ambient air conditions, And to provide a work environment monitoring system for securing the safety of an operator who can automatically send a rescue request when an accident occurs so that a quick structure can be achieved.
In order to achieve the above object, the present invention provides a work environment monitoring system for securing safety of an operator, comprising an oxygen sensor for detecting a preset gas when power is supplied and measuring an oxygen concentration in the air, An environment monitoring module including a sensor unit, a control unit for controlling the driving of the sensor unit, and a communication unit electrically connected to the control unit and connected to the smartphone of the worker through wire / wireless communication; And an application installed in the smart phone, receiving a detection value of the sensor unit through the communication unit to determine a dangerous situation, and executing an alarm signal when the dangerous situation is determined.
The controller of the environment monitoring module drives the sensor unit according to a predetermined period while being connected to the smartphone of the operator in order to save power consumption by driving the sensor unit. And if it is received, immediately drives the sensor unit.
The application may also receive the remaining power value of the environment monitoring module through the communication unit and change the driving period of the sensor unit set in the control unit according to the remaining power of the environment monitoring module.
The sensor unit may further include a carbon monoxide sensor and a hydrogen sulfide sensor. The control unit may include a micro controller unit (MCU), and the control unit may control the sensor unit using an integrated circuit (I2C) And converting the detected analog signal into a digital signal through an analog to digital conversion (ADC) and receiving the digital signal.
The environment monitoring module may further include a housing detachably coupled to the smartphone of the operator and supporting the sensor unit, the control unit, and the communication unit.
In addition, the housing may be formed with an indented seating groove on one side for seating the lower portion of the smart phone, for pressing the edge of the smartphone with the smartphone, And a fixing unit coupled to the housing so as to be pulled downwardly and having a gripper for catching the upper edge of the smartphone at an end thereof.
Also, the environment monitoring module may be configured such that the power source of the environment monitoring module is connected to the smartphone through an input / output port formed at a lower portion of the smart phone, Output port of the smartphone, and the environment monitoring module shares the power supply with the smartphone of the operator through the terminal.
The communication unit may be connected to the smartphone of the operator through short-range wireless communication so that the environment monitoring module and the operator's smartphone can communicate with each other even when the operator is physically separated from each other.
The environmental monitoring module may include a phone connection detecting unit for detecting whether the smart phone is detachable from the housing and the operator and for transmitting a detection signal to the control unit, a smart phone connected to the housing, And a reel on which a wire fixed to the housing is wound, wherein the housing is formed with a receiving groove for receiving the reel, .
The central control server may further include a central control server connected to the application via wireless communication to receive the detection value of the sensor unit.
The environmental monitoring module may further include a fall detector for detecting a physical impact applied to the housing in order to detect a fall accident of the operator and delivering the detected physical amount to the controller, The application transmits the impact value to the central control server if it is determined that the fall incident has occurred, and the application transmits the structure request to the central control server .
In addition, the application may compare the amount of change in the value detected by the gyro sensor built in the smartphone of the operator when the impact value is received, and if the amount of change of the gyro sensor is greater than a preset reference, And if it is determined that there is no response to the message for a predetermined period of time, it is determined that a fall accident has occurred and a rescue request is transmitted to the central control server.
Further comprising a light beacon connected to a power line installed on the ship and being illuminated to perform wireless communication with the application so that the application and the central control server can communicate with each other, 1. A power supply apparatus comprising: a power input unit receiving an AC voltage; an AD / DC converter for converting the AC voltage into a first DC voltage; a regulator for receiving the first DC voltage and converting the first DC voltage into a second DC voltage; And a beacon module that receives 2 DC voltages and uses short range wireless communication based on a Bluetooth low energy (BLE) protocol.
According to the work environment monitoring system for ensuring safety of workers as described above,
First, wireless communication is not smooth as in offshore structures. In a closed environment, it is possible to prevent the occurrence of a smothering and gas poisoning accident on the spot by using an operator's smartphone and an environmental monitoring module. A rescue request is sent and the operator can be quickly rescued.
Secondly, it is possible to utilize the smart phone possessed by the worker, so that the convenience of the user is ensured because the worker can freely attach and detach the smart phone of the worker.
Third, even if the smartphone is disconnected from the environment detection module, the sensor value of the environment detection module can be received by wireless communication, so that the operator can check the state of the air and enter the air before entering the specific area.
Fourth, since the smartphone is seated in the housing and the fixing part covers the edge of the smartphone, it is prevented that the smartphone is damaged even if the environment detecting module is dropped. When the reel connected with the housing and the wire is connected to the work clothes, A knocking situation is prevented.
Fifth, since a beacon for illuminating a wireless communication with a smartphone of a worker through a beacon is installed in various places in the workplace, the wireless communication shadow area is eliminated and the position of the worker can be accurately detected through the beacon function.
BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a block diagram of a work environment monitoring system for ensuring the safety of an operator according to an embodiment of the present invention; FIG.
BACKGROUND OF THE
3 is a flowchart showing a step of periodically detecting a gas by driving a sensor unit by a control unit of an environment detection module according to an embodiment of the present invention.
4 is a partial enlarged view for explaining a front view and a terminal of an environment detection module according to an embodiment of the present invention;
FIG. 5 is a front view illustrating a state in which a smartphone of an operator is coupled to an environment detection module according to an embodiment of the present invention; FIG.
6 is a side view of an environment detection module according to an embodiment of the present invention;
FIG. 7 is an example of a use example in which an environment detection module according to an embodiment of the present invention and a smartphone of an operator are separated to check a state of an air at a long distance.
8 is a configuration diagram of a beacon of illumination light according to an embodiment of the present invention;
Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings.
The work environment monitoring system according to one embodiment of the present invention is a technique for protecting an operator from an accident that may occur in an enclosed space such as a shipyard or an offshore plant. The system analyzes the ambient air condition of the worker, Prevent, and understand the location of the worker in real time.
Also, if an area where choking or poisoning is likely to be detected is detected through the
The configuration of the working environment monitoring system according to an embodiment of the present invention will be described in more detail as follows.
1, a work environment monitoring system according to an embodiment of the present invention includes a
An embodiment of the present invention is installed in a
The
The most frequent accidents in closed workplaces are suffocation due to lack of oxygen in the air. In order to prevent such an accident, the
In addition, the
The sensor included in the
The
Since the
Accordingly, the
The predetermined period of time during which the
The operator can immediately instruct the
2, the
The power source (Batterty) of the
The power supply of the
The MCU of the
The MCU can select and operate the LMP91000 device through the GPIO and I2C.
I2C (Inter Integrated Circuit) is a serial computer bus developed by Philips and is used to connect low-speed peripherals to motherboards, embedded systems, and mobile phones.
Analog to digital conversion (ADC) is an electronic circuit or device that converts an analog electrical signal into a digital electrical signal.
3, the
In addition, the
The
The
The
Since the
Bluetooth 4.0 (2.4 GHz), which includes beacon technology capable of precisely tracking the position of a connected device when communication is performed via Bluetooth, can be a short range wireless communication method in which the
The
The
For example, if the remaining amount of the power of the
4 to 6, the
The
When the
The
The fixing
In one embodiment, the fixing
In another embodiment, the retention of the securing
In addition, it is preferable that the
The fixing
In addition, the
The power supply of the
The
The power source of the
The
If the power of the
The physical connection with the
The input / output port of the
The power supply of the
The
Since the
Therefore, as an example of use, the operator physically separates the
The phone
When the
The
The
The
The operator can check the state of the air remotely by sufficiently pulling the
A
A
When the
In addition, one embodiment of the present invention includes a
The
The web server is generally connected to an unspecified number of clients or other servers through a network such as the Internet, receives a request for performing a job from a client such as the
The
The
The
For example, if an
It is possible to quickly arrange an operator who has an accident through the
The
In order to minimize the error in determining whether or not a fall occurred in the
Generally, since the
However, since it is difficult to accurately determine whether an operator has an accident in this way, the
The message for feedback of the operator is a message to touch the button displayed on the display of the
If the operator does not provide feedback within a predetermined time after the message is output, the
At this time, the
The
The presence of multiple bulkheads, such as a ship or an underground facility, or the enclosed space is very limited in the range of the wireless communication. Therefore, it is necessary to install an access point (AP) in various places in the workplace so that the
Accordingly, an embodiment of the present invention provides a lighting system that is connected to a power line installed on a ship and is illuminated, and performs a wireless communication with the
Since the beacon function of the
8, the
The
The AC /
For example, when the AC voltage supplied to an offshore structure is 220V and the
The
For example, when an AC voltage supplied to an offshore structure is 220V, and the
The
The
In particular, the
In another embodiment of the present invention, the
Accordingly, while the
In another embodiment of the present invention, the
At this time, the
In another embodiment of the present invention, the
For example, when an AC voltage supplied to an offshore structure is 220V, and the
In another embodiment of the present invention, the beacon light 300 further includes an
For example, when an AC voltage supplied to an offshore structure is 220V, and the
As described above, the
While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is to be understood that the invention is not limited to the disclosed exemplary embodiments. It is clear that the present invention can be suitably modified and applied in the same manner. Therefore, the above description does not limit the scope of the present invention, which is defined by the limitations of the following claims.
10: Smartphone 100: Environmental monitoring module
110: housing 111: seat groove
112: fixed portion 113: gripper
114: storage groove 115: wire
116: Reel 117: Hook
120: control unit 140:
150: phone connection detecting unit 160: fall detection unit
170: lamp 180:
182: Terminal 200: Application
300: light beacon 310: power input part
320: AC / DC converter 330: Regulator
340: Beacon module 350: Output section
400: central control server
Claims (13)
An application installed in the smartphone and receiving a detection value of the sensor unit through the communication unit to determine a dangerous situation and executing a warning signal when the dangerous situation is determined;
And a central control server connected to the application by radio communication and receiving a detection value of the sensor unit,
Wherein the environmental monitoring module is detachably coupled to the smartphone of the operator and includes a housing for supporting the sensor unit, the control unit, and the communication unit, and a control unit for detecting a physical impact amount applied to the housing to detect a fall- To the control unit,
Wherein the communication unit is connected to the smartphone of the operator by short range wireless communication so that the environment monitoring module and the operator's smartphone can communicate with each other even when the operator is physically separated,
Wherein the control unit transmits the impact value to the application when the impact amount detected by the fall detection unit is equal to or greater than a predetermined reference value and the application determines whether or not a fall accident has occurred using the received shock amount value, And transmits a rescue request to the central control server.
The controller of the environment monitoring module drives the sensor unit according to a predetermined period while being connected to the smartphone of the operator in order to save power consumption by driving the sensor unit,
Wherein the controller immediately drives the sensor unit when a sensing command is received from the application.
Wherein the application receives the remaining power value of the environment monitoring module through the communication unit and changes the driving period of the sensor unit set in the control unit according to the remaining power of the environment monitoring module.
The sensor unit may further include a carbon monoxide sensor and a hydrogen sulfide sensor,
The control unit includes a micro controller unit (MCU)
Wherein the control unit controls the sensor unit using an I 2 C (inter integrated circuit), and converts the analog signal detected by the sensor unit into a digital signal through an analog to digital conversion (ADC) system.
Wherein the housing is formed with an indented seating groove on which a lower portion of the smart phone is seated to be engaged with the smartphone by pressing the edge of the smartphone,
And a fixing unit coupled to the housing to be pulled downwardly of the smartphone mounted on the seating groove and having a gripper for holding the upper edge of the smartphone at an end thereof.
The environment monitoring module may be installed in the housing such that the power of the environment monitoring module is connected to the smartphone through an input / output port formed at a lower portion of the smart phone, And a terminal protruded corresponding to an input / output port of the smartphone,
Wherein the environment monitoring module shares power with the smartphone of the operator through the terminal.
A phone connection detecting unit for detecting whether or not the smart phone of the operator and the operator is detachable and transmitting a detection signal to the control unit,
A lamp coupled to an outer circumferential surface of the housing and illuminated when the housing and the smartphone of the operator are physically separated from each other when wireless communication is connected;
Further comprising a reel around which a wire fixed to the housing is wound,
Wherein the housing has a receiving groove for receiving the reel.
The application compares the amount of change in the value detected by the gyro sensor built in the smartphone of the operator when the impact value is received, and if the amount of change in the gyro sensor is greater than a preset reference, And if it is determined that there is no response to the message for a predetermined period of time, it is determined that a fall has occurred and a rescue request is sent to the central control server.
Further comprising a light beacon connected to a power line installed on the ship and being illuminated and performing wireless communication with the application so that the application and the central control server can communicate with each other,
Wherein the beacon includes a power source input section for receiving an AC voltage from the power line, an AD / DC converter for converting the AC voltage to a first DC voltage, a regulator for converting the first DC voltage into a second DC voltage, And a beacon module connected to the regulator and receiving a second DC voltage and using a BLE (Bluetooth Low Energy) protocol based near field wireless communication.
Priority Applications (1)
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KR1020160038600A KR101663572B1 (en) | 2016-03-30 | 2016-03-30 | Monitoring system of working environment for ensuring safety of workers |
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KR1020160038600A KR101663572B1 (en) | 2016-03-30 | 2016-03-30 | Monitoring system of working environment for ensuring safety of workers |
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Cited By (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR101914228B1 (en) * | 2017-02-17 | 2018-11-02 | 주식회사 영신 | IOT Based Safety Management System for Construction Site Using the RTLS and Video Control Technology |
KR20190113222A (en) * | 2018-03-28 | 2019-10-08 | 김춘상 | System and method for construction site safety management using smart phone |
US10627381B2 (en) | 2017-05-16 | 2020-04-21 | Gumi Electronics & Information Technolgy Research Institute | Method and apparatus for calculating safety level |
KR102108368B1 (en) | 2019-12-18 | 2020-05-12 | (주)백산에스엔케이 | Smart management system that can monitor the work environment and work environment |
KR102123008B1 (en) * | 2019-08-26 | 2020-06-15 | 전찬희 | Apparatus for intelligent wearable hazard determination device using complex environment measurement and method thereof |
KR102133180B1 (en) * | 2019-03-18 | 2020-07-13 | 백우민 | Wearable devices for prevent suffocation |
CN111735909A (en) * | 2020-06-01 | 2020-10-02 | 北京康尔兴科技发展有限公司 | Characteristic pollutant environment monitoring system |
KR102229617B1 (en) * | 2020-08-20 | 2021-03-17 | 홍성희 | Smart IOT gas alarm system |
KR102229620B1 (en) * | 2020-08-20 | 2021-03-17 | 홍성희 | Smart IOT gas alarm system |
KR20230102806A (en) | 2021-12-30 | 2023-07-07 | 윤서현 | Work shoes and systems to determine the safety status of workers |
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JP2002216282A (en) * | 2001-01-17 | 2002-08-02 | Nippon Telegr & Teleph Corp <Ntt> | Sensor device, sensor system and sensor data providing method |
KR101505022B1 (en) | 2013-07-23 | 2015-03-30 | (주) 동우엔지니어링 | Monitoring system for air pollution measurement |
KR20160000711A (en) * | 2014-06-25 | 2016-01-05 | 필아이티 주식회사 | Apparatus for measuring air pollution level and method for measuring air pollution level of mobile communication terminal by using same |
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2016
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JP2002216282A (en) * | 2001-01-17 | 2002-08-02 | Nippon Telegr & Teleph Corp <Ntt> | Sensor device, sensor system and sensor data providing method |
KR101505022B1 (en) | 2013-07-23 | 2015-03-30 | (주) 동우엔지니어링 | Monitoring system for air pollution measurement |
KR20160000711A (en) * | 2014-06-25 | 2016-01-05 | 필아이티 주식회사 | Apparatus for measuring air pollution level and method for measuring air pollution level of mobile communication terminal by using same |
Cited By (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR101914228B1 (en) * | 2017-02-17 | 2018-11-02 | 주식회사 영신 | IOT Based Safety Management System for Construction Site Using the RTLS and Video Control Technology |
US10627381B2 (en) | 2017-05-16 | 2020-04-21 | Gumi Electronics & Information Technolgy Research Institute | Method and apparatus for calculating safety level |
KR20190113222A (en) * | 2018-03-28 | 2019-10-08 | 김춘상 | System and method for construction site safety management using smart phone |
KR102163833B1 (en) * | 2018-03-28 | 2020-10-12 | 김춘상 | System and method for construction site safety management using smart phone |
KR102133180B1 (en) * | 2019-03-18 | 2020-07-13 | 백우민 | Wearable devices for prevent suffocation |
KR102123008B1 (en) * | 2019-08-26 | 2020-06-15 | 전찬희 | Apparatus for intelligent wearable hazard determination device using complex environment measurement and method thereof |
WO2021040126A1 (en) * | 2019-08-26 | 2021-03-04 | 전찬희 | Intelligent wearable dangerous state determination device using complex environment measurement, and method therefor |
KR102108368B1 (en) | 2019-12-18 | 2020-05-12 | (주)백산에스엔케이 | Smart management system that can monitor the work environment and work environment |
CN111735909A (en) * | 2020-06-01 | 2020-10-02 | 北京康尔兴科技发展有限公司 | Characteristic pollutant environment monitoring system |
KR102229617B1 (en) * | 2020-08-20 | 2021-03-17 | 홍성희 | Smart IOT gas alarm system |
KR102229620B1 (en) * | 2020-08-20 | 2021-03-17 | 홍성희 | Smart IOT gas alarm system |
KR20230102806A (en) | 2021-12-30 | 2023-07-07 | 윤서현 | Work shoes and systems to determine the safety status of workers |
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