KR102582490B1 - Apparatus and method for safety management - Google Patents

Abstract

The present invention relates to a safety management device, which includes a motion detection unit that detects the wearer's movement, a height detection unit that detects the height at which the wearer is located, a temperature detection unit that detects the wearer's surrounding temperature, and safety management. It includes a communication unit that communicates with a server and a motion control unit connected to the motion detection unit, the height detection unit, the temperature detection unit, the image acquisition unit, the sound acquisition unit, and the communication unit, and the motion control unit detects the motion. reads signals input from the height detection unit and the temperature detection unit to obtain current acceleration data, current angular velocity data, current height data, and current temperature data, and obtains the current height data, the current acceleration data, and the current temperature data. Process the angular velocity data to determine whether the worker has fallen in a fall situation, process the current temperature data to determine whether the area surrounding the worker is a fire situation or a dead situation, and determine at least one dangerous situation among a fall situation, a fire situation, and a dead situation. When this happens, the location information of the safety management device is determined, and the determined type of dangerous situation, the identification number of the safety management device, and the location information are transmitted to the safety management server using the communication unit.

Description

Safety management device and its control method {APPARATUS AND METHOD FOR SAFETY MANAGEMENT}

The present invention relates to safety management devices and their control methods.

In general, the environment in which workers work is often unsafe, and injuries and deaths due to accidents or health conditions commonly occur during work.

In particular, social interest in workplace safety has increased significantly, with related laws being enacted to prevent disasters that occur in various workplaces.

Accordingly, a variety of products are being released to prevent accidents by attaching a camera to the worker's hard hat or body, or attaching various sensing devices and communication devices to transmit the worker's status and surrounding status information to the management server.

However, in the case of safety helmets equipped with such cameras and other communication devices, the price is expensive and the weight increases significantly, which increases the wearer's discomfort and interferes with work.

Additionally, due to the nature of the safety helmet, it is difficult to provide continuous power, so a portable power source such as a battery is used. However, due to the many electronic devices installed on the hard hat, a problem arises in which the portable power source quickly consumes power.

Moreover, since the data collected from the hard hat is continuously or periodically transmitted to the management server through a wireless communication network, the increase in communication traffic due to such data transmission further reduces the duration of portable power and also increases communication costs.

Korean Patent No. 20-048026 (Registration date: April 27, 2016, Title of invention: Worker safety activity detection device using smartphone) Korean Patent No. 10-2123008 (Registration date: June 9, 2020, Title of invention: Intelligent wearable risk status determination device and method using complex environment measurement)

The problem that the present invention aims to solve is to reduce the use of separate devices for worker safety management and to reduce the inconvenience of charging separate batteries.

A safety management device according to one feature of the present invention includes a motion detection unit that detects the movement of the wearer, a height detection unit that detects the height at which the wearer is located, a temperature detection unit that detects the wearer's surrounding temperature, and a safety management server that communicates with the safety management server. It includes a communication unit, the motion detection unit, the height detection unit, the temperature detection unit, and an operation control unit connected to the communication unit, and the operation control unit receives input from the motion detection unit, the height detection unit, and the temperature detection unit. Read the signal to obtain current acceleration data, current angular velocity data, current height data, and current temperature data, and process the current height data, current acceleration data, and current angular velocity data to determine whether the worker has fallen and is in a fall situation. , processes the current temperature data to determine whether the area around the worker is a fire situation or a dead situation, and if it is determined to be a dangerous situation in at least one of a fall situation, a fire situation, and a dead situation, determines the location information of the safety management device, and makes a decision. The type of dangerous situation, the identification number of the safety management device, and the location information are transmitted to the safety management server using the communication unit.

The safety management device according to the above feature is connected to the operation control unit, an image acquisition unit that acquires image data of the surrounding image of the wearer, and a sound acquisition unit connected to the operation control unit, and acquires sound data of the wearer's surrounding voice. The operation control unit may further include the determined type of dangerous situation, the identification number of the safety management device, and the location information, as well as the current image data and current sound acquired from the image acquisition unit and the sound acquisition unit. Data can be output to the safety management server.

The motion detection unit may include an angular velocity sensor and an acceleration sensor.

The operation control unit may receive a communication strength signal transmitted from at least one short-distance communication device and determine the location information using the strength of the received signal.

The at least one short-range communication device may be a wireless LAN router or a Bluetooth AP.

The safety management device may be a smartphone.

A control method of a safety management device according to another feature of the present invention includes the steps of a motion control unit reading signals input from a motion detection unit, a height detection unit, and a temperature detection unit, wherein the operation control unit reads signals input from the motion detection unit and the height detection unit. and processing the signal applied from the temperature sensor to obtain current acceleration data, current angular velocity data, current height data, and current temperature data, wherein the operation control unit obtains the current height data, current acceleration data, and current angular velocity data. Processing to determine whether the worker has fallen in a fall situation, the operation control unit processing the current temperature data to determine whether the area surrounding the worker is a fire situation or a dead situation, The operation control unit is a fall situation, a fire situation, and a dead situation If at least one of the following is determined to be a dangerous situation, determining location information of the safety management device, and the operation control unit uses the communication unit to transmit the type of the determined dangerous situation, the identification number of the safety management device, and the location information. It includes the step of transmitting to the safety management server.

The control method of the safety management device according to the above feature includes the steps of the operation control unit acquiring current image data and current sound data by reading signals applied from the image acquisition unit and the sound acquisition unit, and the operation control unit determining the dangerous situation. It may further include outputting the current image data and current sound data obtained from the image acquisition unit and the sound acquisition unit along with the type, identification number of the safety management device, and the location information to the safety management server. .

The step of determining the location information includes the operation control unit receiving a communication strength signal transmitted from at least one short-distance communication device and the operation control unit determining the location information using the strength of the received signal. can do.

According to these features, the current safety situation is determined using the safety management device owned by the worker, so the risk of safety accidents is reduced and quick and accurate responses can be made when a safety accident occurs.

In addition, if the safety management device is a smartphone that almost all workers carry, signal processing using a high-performance smartphone can be performed quickly and accurately, and workers do not need to carry an additional safety management device and are reminded every time. There is no need to recharge or replace batteries used in devices.

1 is a schematic block diagram of a worker safety management system according to an embodiment of the present invention.
Figure 2 is a schematic block diagram of a safety management device according to an embodiment of the present invention.
Figure 3 is a schematic operational flowchart of a safety management device according to an embodiment of the present invention.

Hereinafter, embodiments disclosed in the present specification will be described in detail with reference to the attached drawings. However, identical or similar components will be assigned the same reference numbers regardless of reference numerals, and duplicate descriptions thereof will be omitted. Additionally, in describing the embodiments disclosed in this specification, if it is determined that detailed descriptions of related known technologies may obscure the gist of the embodiments disclosed in this specification, the detailed descriptions will be omitted.

Terms containing ordinal numbers, such as first, second, etc., may be used to describe various components, but the components are not limited by the terms. The above terms are used only for the purpose of distinguishing one component from another.

Singular expressions include plural expressions unless the context clearly dictates otherwise.

In this application, each step described may be performed regardless of the listed order, except when it must be performed in the listed order due to a special causal relationship.

In this application, terms such as “comprise” or “have” are intended to designate the presence of features, numbers, steps, operations, components, parts, or combinations thereof described in the specification, but are not intended to indicate the presence of one or more other features. It should be understood that this does not exclude in advance the possibility of the existence or addition of elements, numbers, steps, operations, components, parts, or combinations thereof.

Hereinafter, the present invention will be described with reference to the attached drawings.

Referring to FIG. 1, the worker safety management system 1 of the present example includes a safety management device 10, a worker management server 20 in communication with the safety management device 10, and at least one in communication with the safety management device 10. A short-distance communication device 30 may be provided.

The safety management device 10 is a portable terminal carried by workers working in the workplace, and may be, for example, a smartphone.

As shown in FIG. 2, this safety management device 10 includes a user input unit 11, a motion detection unit 121 including an acceleration sensor and a gyro sensor, a height detection unit 122, and a temperature detection unit 123. A sensor unit 12, an image acquisition unit 13, a sound acquisition unit 14, a communication unit 15, a user input unit 11, a sensor unit 12, an image acquisition unit 13, and a sound acquisition unit. (14) and the operation control unit 16 connected to the communication unit 15, the storage unit 17 connected to the operation control unit 16, and the output unit 18 connected to the operation control unit 16 (time , voice, vibration) can be provided.

The user input unit 11 can generate a signal related to the user's input operation, such as inputting a command or inputting a set value for controlling the operation of the safety management device 10, and output the signal to the control unit.

This user input unit 11 may be composed of a key pad, dome switch, touch pad, jog switch, or mouse.

The motion detection unit 121 may detect the movement of the worker carrying the safety management device 10, generate motion data, and output the generated motion data to the motion control unit 16.

Accordingly, the motion control unit 16 can determine whether the worker has fallen and the speed of the fall by analyzing the state of the movement data applied from the motion detection unit 121.

This motion detection unit 121 may include an acceleration sensor and a gyro sensor as already described.

The acceleration sensor can measure the acceleration of movement occurring in three-dimensional vertical axes orthogonal to the x-axis, y-axis, and z-axis and output it as acceleration data, and the gyro sensor performs a rolling motion, which is a rotating motion about the x-axis. , the rotational angular velocity of pitching, which is a rotational motion about the y-axis, and yawing, which is a rotational motion about the z-axis, can be measured and output as angular velocity data.

Therefore, the movement magnitude (MACC) is calculated using the root mean square using the acceleration sensor values (ax, ay, az) for the three axes measured by the acceleration sensor, that is, the x-axis, y-axis, and z-axis. can be calculated.

The height detection unit 122 may detect the height of the workplace where the worker is located, generate height data, and output the generated height data to the operation control unit 16. In this example, the height sensor 122 may include an air pressure sensor.

If it is determined that the worker has fallen based on the movement data received from the motion detection unit 121, the motion control unit 16 determines the height of the worker's fall using the value of the height data received from the height detection unit 122. can do.

The temperature detection unit 123 generates temperature data by detecting the temperature of the workplace, that is, the worker's surrounding temperature. The temperature detection unit 123 can output the generated temperature data to the operation control unit 16.

For this reason, the operation control unit 16 determines the current temperature around the worker using the value of the input temperature data, and determines whether a fire has occurred or whether a fire is dangerous when the determined current temperature around the worker is outside the set temperature range. can be judged.

As an alternative example, the operation control unit 16 may determine whether an accident has occurred by determining whether the temperature difference between the previous temperature and the current temperature of the workplace is greater than or equal to a set difference.

For example, when the current temperature rises more than a set value (eg, a first set value) compared to the previous temperature, the operation control unit 16 may determine that a fire has occurred around the worker.

In addition, if the previous temperature falls below the set value (e.g., the second set value) compared to the initial temperature, the operation control unit 16 may determine that the worker is located in a position where there is a risk of falling or the like. there is.

The image acquisition unit 13 can capture images surrounding the workplace where the safety management device 10 is located, generate corresponding image data, and output it to the operation control unit 16, and the sound acquisition unit 14 can perform safety management. Sound data generated around the device 10 may be input, sound data may be generated, and then output to the operation control unit 16.

In this example, the image acquisition unit 13 may be a camera mounted on the safety management device 10, and the sound acquisition unit 14 may be a microphone mounted on the safety management device 10.

The image acquisition unit 13 may be located integrally with the body of the safety management device 10, but alternatively, it may be separated from the body using an extension line or the like and placed separately. In this case, the body of the safety management device is mounted in the worker's pocket for ease of portability and to prevent loss, while the image acquisition unit 13 is exposed to the outside, such as on the outside of a work hat or work clothes, using a separate fixing device, etc. Can be installed. In this case, there is no risk of the image acquisition unit 13 being captured by clothes, etc., and the image acquisition unit 13 can be installed so that image capture can be performed in a desired direction when the image acquisition unit 13 is mounted.

Accordingly, if it is determined that an accident has occurred using the motion data and height data, the operation control unit 16 can additionally determine the type of accident that has occurred using the image data and sound data. However, at this time, one of the image data and sound data may be omitted.

The communication unit 15 may include at least one communication module for communication with the safety management server.

As an example, the communication unit 15 may include a short-range communication module 151, an Internet communication module 152, and a mobile communication module.

The short-range communication module 151 may be a module for short-range communication, and short-range communication technologies for short-range communication include NFC, Bluetooth, Radio Frequency Identification (RFID), infrared data association (IrDA), and UWB. (Ultra Wideband) or ZigBee, etc. may be used.

The Internet communication module 152 may be a module for wireless or wired Internet access. At this time, Internet technologies for Internet access may include WLAN (Wireless LAN) (Wi-Fi network), Wibro (Wireless broadband), Wimax (World Interoperability for Microwave Access), or HSDPA (High Speed Downlink Packet Access). there is.

The mobile communication module 153 wirelessly transmits and receives signals (i.e., wireless signals) with at least one of a base station, an external terminal, and a server on a cellular network. Wireless signals may include various types of data resulting from the transmission and reception of voice call signals, video call signals, or short messages or multimedia messages.

The operation control unit 16 is a control unit that controls the overall operation of the safety management device 10 and may be a microprocessor.

This operation control unit 16 may be connected to the sensor unit 12, the image acquisition unit 13, the sound acquisition unit 14, and the communication unit 15.

Accordingly, the operation control unit 16 can determine the operator and the surrounding situation by receiving and processing the data input from the sensor unit 12 and the data input from the image acquisition unit 13 and the sound acquisition unit 14, Because of this, it is possible to determine whether an accident has occurred and the type of accident that has occurred.

The storage unit 17 is a storage medium such as a memory that stores data required for the operation of the operation control unit 16 or data generated during the operation.

The output unit 18 is for generating output related to vision, hearing, and tactile senses, and includes a display module 181, an audio output module, and a haptic module.

The display module 181 displays an image corresponding to the image data output from the control unit 23 according to the operation of the operation control unit 16 on the screen, such as a liquid crystal display or an organic light emitting display device. It includes at least one display device selected from an emitting diode display, a flexible display, and a 3D display.

The audio output module can output an audio signal output from the operation control unit 16 as a voice by the operation of the operation control unit 16.

In this example, the operation control unit 16 outputs a sound corresponding to a risk warning message to the outside through a sound output module to inform workers of the risk.

This sound output module may be equipped with a speaker or buzzer.

The haptic module 183 generates various tactile effects that the user can feel. In this example, the tactile effect generated by the haptic module 183 is vibration.

The intensity and pattern of vibration generated by the haptic module 183 can be changed by the control operation of the motion control unit 16, and the haptic module 183 is operated by a motor operated by control of the motion control unit 16. ), etc. can be provided.

The safety management server 20 may communicate wirelessly with the safety management device 10.

Therefore, the safety management device 10 can transmit safety management information, such as whether an accident has occurred to a worker working in the workplace and the type of accident predicted when an accident occurs, to the safety management server 20 using the communication unit 15. there is.

As a result, the safety management server 20 located outside the workplace outputs the safety management information transmitted from the safety management device 10 using the output unit 18 to quickly and accurately identify the situation in the workplace and prevent accidents from occurring. Enable timely and rapid response actions.

This safety management server 20 may also include a user input unit 11, a communication unit 15, an operation control unit 16 consisting of a processor, and an output unit 18, and may be additionally connected to a database.

At least one short-range communication device 30 may be a wireless LAN router or a Bluetooth access point (AP), and propagates a communication strength signal (RSRP) to the surroundings, and the safety management device 10 is connected to each short-range communication device 30. You can receive a communication strength signal transmitted from and determine your location information using the strength of the received signal. That is, since the installation positions of each short-range communication device 30 are different from each other, the safety management device 10 can receive each communication strength signal received at different strengths.

By using this short-range communication device 30, the operation control unit 16 can obtain location information of the safety management device 10 using communication with at least one short-range communication device 30 installed in the workplace.

As an example, the operation control unit 16 can connect to the short-range communication device 30 and receive a communication strength signal (RSRP) from the short-range communication device 30 through the communication unit 15. At this time, the short-range communication device 30 may output its installation location information, which is absolute coordinates, together with the communication strength signal.

Accordingly, the operation control unit 16 can measure the distance to the short-distance communication device 30 with which it communicated using the magnitude of the received communication strength signal.

The operation control unit 16 calculates the current location of the safety management device 10 in which it is embedded using the installation location information of the communication device, which is absolute coordinates, and the calculated distance to the short-distance communication device 30, and then stores the storage unit 17. ) can be saved in .

In an alternative example, installation location information for at least one short-distance communication device 30 installed in the workplace may be stored in advance in the storage unit 17 of the safety management device 10, and in this case, the operation control unit 16 may not separately receive installation location information from the short-range communication device 30.

In another alternative example, the safety management device 10 may be equipped with a location acquisition unit that uses a GPS signal, and in this case, the control unit determines the current location of the safety management device 10 using the signal output from the location acquisition unit. Information can be determined.

In another example, the safety management device 10 may additionally include an inertial sensor, and when the safety management device 10 includes an inertial sensor, the operation control unit 16 uses a signal applied from the inertial sensor to ensure safety. Whenever movement of the management device 10 is detected, location information of the safety management device 10 can be obtained using a short-distance communication device 30 or a location acquisition unit using a GPS signal.

When location information is acquired through this method, the operation control unit 16 can output the acquired location information to the display module 181 of the output unit 18.

Therefore, in the event of an accident, workers can quickly determine their location information and request rescue.

Next, with reference to FIG. 3, the operation of this safety management system will be described.

First, when a worker arrives at a workplace where at least one short-range communication device 30 is installed, he or she can perform work after operating the safety management device 10 that he or she is carrying or wearing.

Therefore, when the operation of the safety management device 10 starts, the operation control unit 16 operates the sensor unit 12, the image acquisition unit 13, and the sound acquisition unit 14 to acquire the sensor unit 12 and the image. Data input from the unit 13 and the sound acquisition unit 14 can be read (S11). In this example, the operation control unit 16 may periodically receive signals from the sensor unit 12 according to a predetermined period stored in the storage unit 17.

Accordingly, the operation control unit 16 obtains the current acceleration data, current angular velocity data, current height data, current temperature data, current image data, and current sound data of the current worker using the signal input from the sensor unit 12. It can be stored as current data in the storage unit 17 (S12).

Then, the operation control unit 16 can determine whether a dangerous situation has occurred in the workplace using the acquired current data (S13, S14).

To this end, the operation control unit 16 can determine whether a fall accident has occurred using a change in the worker's position.

To this end, the operation control unit 16 may compare current height data and previous height data to determine whether the change in height at which the worker is located has occurred more than a set value.

If the worker's height change occurs more than the set value, the motion control unit 16 may determine the amount of acceleration change and angular velocity change by using the current acceleration data and the current angular velocity data, respectively, and the previous acceleration data and previous angular velocity data.

Therefore, when at least one of the acceleration change amount and the angular velocity change amount is greater than or equal to the set change amount, the operation control unit 16 may determine that the worker has fallen.

Additionally, the operation control unit 16 may compare the current temperature and the previous temperature to determine whether the environment around the worker is dangerous to the worker.

For example, when the current temperature rises above the first set value compared to the previous temperature, the operation control unit 16 may determine that a fire has occurred in the vicinity where the worker is located.

On the other hand, if the current temperature drops to the second set value or more compared to the previous temperature, the operation control unit 16 may determine that the surrounding area where the worker is located is a low temperature situation where there is a risk of freezing.

In this way, when the worker's situation is not a normal situation but a dangerous situation, for example, a fall situation, a fire situation, or a low temperature situation occurs (S14), the operation control unit 16 detects the fall through communication with the short-distance communication device 30. Location information on where one worker is located, that is, location information on the safety management device 10, can be determined (S15).

Next, the operation control unit 16 uses the communication unit 15 to indicate the currently determined type of dangerous situation (e.g., at least one of a fall situation, a fire situation, and a low temperature situation), the worker's identification number, for example, safety management Safety data including at least one of the identification number (e.g., MAC address) of the device 10, determined location information, current image data, and current sound data stored in the storage unit 17 It can be transmitted to the management server 20 (S16).

Accordingly, when risk occurrence data is transmitted from the safety management device 10 through the communication unit 15, the operation control unit 16 of the safety management server 20 outputs the transmitted risk occurrence data to the output unit 18. Additionally, a danger signal can be output to a warning light unit (not shown) so that the current accident can be quickly notified to the outside world. At this time, the warning light unit may be equipped with a speaker that outputs a passing sound and a warning light.

Therefore, the manager of the safety management server 20 quickly confirms the state in which a dangerous situation has occurred by the risk occurrence data output to the output unit 18 and the operation of the light unit, and transmits the transmitted video data, sound data, and the dangerous situation. By using the type, you can quickly determine the extent of the accident, and by using the transmitted location information, you can quickly and accurately determine the current location of the worker who suffered the accident.

As a result, the safety of workers who have suffered an accident can be protected by quickly dispatching to the identified location and quickly and accurately taking action appropriate to the identified degree of the accident.

In this way, when risk occurrence data is transmitted from the safety management device 10 and it is determined that a risk has occurred to the worker who owns the entire management device, the operation control unit 16 of the safety management server 20 operates the communication unit ( 15) can be used to transmit a driving command that can drive at least one of the image acquisition unit 13, the sound acquisition unit 14 (e.g., microphone), and the haptic module 183 to the safety management device 10. .

Accordingly, the operation control unit 16 of the safety management device 10 operates the image acquisition unit 13, the sound acquisition unit 14, and the haptic operation according to the driving command transmitted from the safety management server 20 through the communication unit 15. By operating at least one of the modules 183, the accident site can be checked in real time and a real-time voice call or video call can be made with the accident victim. In addition, the consciousness of the thinker can be continuously maintained by using the generation of vibration through the haptic module 183 according to the current state of the thinker.

Additionally, if the operator's situation is determined to be a dangerous situation, the operation control unit 16 may output the current situation to the output unit 18 (S16).

Accordingly, when risk occurrence data is transmitted from the safety management device 10 through the communication unit 15, the operation control unit 16 of the safety management server 20 outputs the transmitted risk occurrence data to the output unit 18. Additionally, a danger signal can be output to a warning light unit (not shown) so that the current accident can be quickly notified to the outside world. At this time, the warning light unit may be equipped with a speaker that outputs a passing sound and a warning light.

Therefore, the manager of the safety management server 20 quickly confirms the state in which a dangerous situation has occurred by the risk occurrence data output to the output unit 18 and the operation of the light unit, and transmits the transmitted video data, sound data, and the dangerous situation. By using the type, you can quickly determine the extent of the accident, and by using the transmitted location information, you can quickly and accurately determine the current location of the worker who suffered the accident.

As a result, the safety of workers who have suffered an accident can be protected by quickly dispatching to the identified location and quickly and accurately taking action appropriate to the identified degree of the accident.

In this way, when risk occurrence data is transmitted from the safety management device 10 and it is determined that a risk has occurred to the worker who owns the entire management device, the operation control unit 16 of the safety management server 20 operates the communication unit ( 15) can be used to transmit a driving command that can drive at least one of the image acquisition unit 13, the sound acquisition unit 14 (e.g., microphone), and the haptic module 183 to the safety management device 10. .

Accordingly, the operation control unit 16 of the safety management device 10 operates the image acquisition unit 13, the sound acquisition unit 14, and the haptic operation according to the driving command transmitted from the safety management server 20 through the communication unit 15. By operating at least one of the modules 183, the accident site can be checked in real time and a real-time voice call or video call can be made with the accident victim. In addition, the consciousness of the thinker can be continuously maintained by using the generation of vibration through the haptic module 183 according to the current state of the thinker.

Additionally, if the operator's situation is determined to be a dangerous situation, the operation control unit 16 may output the current situation to the output unit 18 (S16).

For example, the operation control unit 16 outputs sound data determined to the sound module 182 so that voice information corresponding to the sound data can be output through the speaker, and also outputs current location information to the display module 181. Print it out so that workers who have suffered an accident can quickly determine their current location.

For this reason, when a worker loses consciousness due to a fall, etc., the sound output from the sound module 182 allows the worker to regain consciousness and take appropriate measures.

Alternatively, the worker can accurately and quickly understand the current surrounding situation using the contents of the voice information output from the sound module 182. Because of this, if a dangerous situation such as a fire occurs nearby, workers can quickly recognize it and evacuate to a safe place.

Additionally, the motion control unit 16 may determine the operator's movement through a comparison operation between current image data obtained from the image acquisition unit 13 and previous image data.

Through the comparison operation of the two image data, when the worker is currently motionless, the operation control unit 16 can drive the haptic module 183 as well as the sound module 182.

As a result, the worker can regain consciousness more quickly due to the vibration generated by the operation of the haptic module 183.

In this way, the type and state of the driving signal output to the sound module 182 and the haptic module 183 may differ depending on the determined dangerous situation of the worker, and is stored in the storage unit 17 corresponding to each dangerous situation. It can already be saved. Accordingly, the operation control unit 16 may output a driving signal to at least one of the acoustic module 182 and the haptic module 183 according to the type and state corresponding to the determined dangerous situation.

In this example, instead of using the location information acquisition unit using GPS information mounted on the safety management device 10, the current worker's location information can be obtained using the short-range communication device 30 installed in the workplace.

As a result, the worker's location information can be quickly and accurately determined even when the worker's location information cannot be confirmed because GPS information is not accurately obtained, such as indoors or underground.

In this way, when the safety management device 10 is a smartphone, the data is collected on its own inside the smartphone, and the operation mode of the detection unit belonging to the sensor unit 12 can also be set arbitrarily by the operator, so reliability is high and battery power for transmission and reception is high. There is no consumption and the possibility of failure is low.

In addition, since a microprocessor, data processing capacity, and a large capacity battery are required for the operation control unit 16, there are many limitations in performing the operation according to this embodiment using wearable devices such as a safety helmet or smart watch, and thus, accurate Estimation cannot be made, and if several false reports occur, the safety management device 10 cannot operate normally.

In addition, the safety management server 20 can process large amounts of data with a high-performance microprocessor, but if all data is to be transmitted to the server through wireless communication from the worker's hard hat or wearable device, communication traffic will increase excessively and the battery will be consumed quickly. A problem arises.

However, when the safety management device 10 is a smartphone, various data are collected internally within the smartphone, so the operation mode settings of various sensors can be arbitrarily performed, so reliability is high, there is no battery power consumption for transmission and reception, and there is no possibility of failure. can also be greatly reduced.

In addition, when the safety management device 10 is a smartphone, the smartphone has a structure capable of processing large amounts of data, so the operation of this embodiment can be performed stably.

Additionally, the worker attaches at least one sensor that detects his or her body information (e.g., body temperature, pulse, blood pressure), gas, inertial, image sensor, and altitude sensor to ensure safety through short-range wireless communication. It can be transmitted to the management device 10.

In this case, since the safety management device 10 receives the wearer's physical information, it can accurately determine the wearer's health status and transmit it to the safety management server 20, and can determine the accident path before an accident occurs. It is possible to identify the type of accident more accurately.

For example, if the gas sensor determines that gas is detected at a set concentration or higher, the safety management device 10 can warn of the risk of an accident using the output unit 18.

In this case, the safety management device 10 can determine the worker's situation more closely by changing the signal transmission period transmitted from the sensor attached to the worker to the safety management device 10 according to the worker's abnormal condition.

In this case, the safety management device 10 may omit sensors that overlap with sensors attached to the wearer.

The technical features disclosed in each embodiment of the present invention are not limited to the corresponding embodiment, and unless they are incompatible with each other, the technical features disclosed in each embodiment may be combined and applied to other embodiments.

Therefore, in each embodiment, each technical feature is mainly explained, but unless the technical features are incompatible with each other, they can be applied in combination with each other.

The present invention is not limited to the above-described embodiments and the accompanying drawings, and various modifications and variations will be possible from the perspective of those skilled in the art to which the present invention pertains. Therefore, the scope of the present invention should be determined not only by the claims of this specification but also by equivalents to these claims.

10: Safety management device 121: Motion detection unit
122: height detection unit 123: temperature detection unit
13: Image acquisition unit 14: Sound acquisition unit
15: Communication unit 151: Short-distance communication module
16: operation control unit 18: output unit
20: Safety management server 30: Short-distance communication device

Claims (9)

In safety management devices,
A motion detection unit that detects the wearer's movement;
Height detection unit that detects the height at which the wearer is located;
A temperature sensing unit that detects the wearer's surrounding temperature;
an image acquisition unit that captures images of the surrounding area where the safety management device is located and generates image data;
a communication unit communicating with the safety management server;
An operation control unit connected to the motion detection unit, the height detection unit, the temperature detection unit, the image acquisition unit, and the communication unit; and
Haptic module connected to the motion control unit
Including,
The operation control unit,
Reading signals input from the motion detection unit, the height detection unit, and the temperature detection unit to obtain current acceleration data, current angular velocity data, current height data, and current temperature data,
Process the current height data, the current acceleration data, and the current angular velocity data to determine whether the worker has fallen,
Processes the current temperature data to determine whether the area around the worker is a fire situation or a dead situation,
If at least one of a fall situation, a fire situation, and a fire situation is determined to be a dangerous situation, the location information of the safety management device is determined, and includes the type of the determined dangerous situation, an identification number of the safety management device, and the location information. Transmitting risk occurrence data to the safety management server using the communication unit,
When the risk occurrence data is transmitted from the safety management device and a driving command for the image acquisition unit and the haptic module is transmitted from the safety management server through the communication unit, the current image data and previous image data acquired from the image acquisition unit are Compare and determine the worker's movements,
When it is determined that the worker is in a state of no movement, the haptic module is driven to enable the worker to regain consciousness by vibration generated by the operation of the haptic module.
Safety management device. In paragraph 1:
A sound acquisition unit connected to the operation control unit and acquiring sound data of surrounding voices of the wearer.
It further includes,
The operation control unit outputs the determined type of dangerous situation, the identification number of the safety management device, and the location information along with the current sound data obtained from the sound acquisition unit to the safety management server. According to claim 1,
The motion detection unit is a safety management device including an angular velocity sensor and an acceleration sensor. According to claim 1,
The operation control unit is a safety management device that receives a communication strength signal transmitted from at least one short-distance communication device and determines the location information using the strength of the received signal. According to clause 4,
A safety management device wherein the at least one short-distance communication device is a wireless LAN router or a Bluetooth AP. According to claim 1,
The safety management device is a smartphone. The motion control unit reads signals input from the motion detection unit, the height detection unit, and the temperature detection unit;
The motion control unit processes signals applied from the motion detection unit, the height detection unit, and the temperature detection unit to obtain current acceleration data, current angular velocity data, current height data, and current temperature data;
The operation control unit processes the current height data, the current acceleration data, and the current angular velocity data to determine whether the worker has fallen;
The operation control unit processes the current temperature data to determine whether the surrounding area of the worker is a fire situation or a dead situation;
When the operation control unit determines at least one dangerous situation among a fall situation, a fire situation, and an accident situation, determining location information of the safety management device;
The operation control unit transmits the determined type of dangerous situation, the identification number of the safety management device, and the location information to the safety management server using a communication unit;
When a driving command for driving the image acquisition unit and the haptic module is transmitted from the safety management server, the operation control unit determines the movement of the worker by comparing current image data obtained from the image acquisition unit and previous image data; and
When the motion control unit determines that there is no movement of the worker, driving the haptic module to enable the worker to regain consciousness by vibration generated by the operation of the haptic module
A control method of a safety management device comprising. According to clause 7,
The operation control unit acquires current sound data by reading a signal applied from the sound acquisition unit; and
The operation control unit outputs the current sound data obtained from the sound acquisition unit along with the determined type of dangerous situation, the identification number of the safety management device, and the location information to the safety management server.
A control method of a safety management device further comprising: According to clause 7,
The step of determining the location information is,
The operation control unit receiving a communication intensity signal transmitted from at least one short-distance communication device; and
The operation control unit determines the location information using the strength of the received signal.
A control method of a safety management device comprising.

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