KR101809279B1 - Apparatus for measuring electromagnetic waves exposure and method thereof - Google Patents

Abstract

In the present invention, the portable electromagnetic measuring apparatus collects the intensity of the electromagnetic wave and the measurement position and time information on electromagnetic waves of various frequencies radiated to the user, measures the electromagnetic wave exposure level of each frequency band in real time using the frequency selection filter, After recording the band and time, the information of the electromagnetic wave signal is provided based on the information on the personal exposure such as the total exposure index, and the alarm is provided to enable more accurate monitoring of the electromagnetic wave exposure. In addition, when the exposure level through the frequency filter is compared and if it is determined that the exposure level is exceeded by a predetermined reference value, the timer is activated to record the cumulative exposure time for each frequency, And thus it is possible to prevent overexposure of the electromagnetic wave of the individual.

Description

[0001] APPARATUS FOR MEASURING ELECTROMAGNETIC WAVES EXPOSURE AND METHOD THEREOF [0002]

The present invention relates to an electromagnetic wave measuring apparatus, and more particularly, to a portable electromagnetic wave measuring apparatus having a position and time information receiving function, collecting intensity of an electromagnetic wave and measurement position and time information on electromagnetic waves of various frequencies radiated to a user , Frequency band and time are recorded by measuring the electromagnetic wave exposure level of each frequency band by frequency selection filter in real time, and when the frequency band and time are recorded on the basis of data measured by a central control unit inside or outside the apparatus, the present invention relates to an apparatus and a method for measuring an exposure amount of a portable electronic device that provides information of an electromagnetic wave signal based on information on a personal exposure amount such as a total exposure ratio (TER)

Generally, as the frequency of use of devices using electromagnetic waves increases in daily life, the public and workers are frequently exposed by various electromagnetic sources. At present, the relevance of the electromagnetic waves from these devices to the human body has not been clearly elucidated through animal experiments as well as epidemiological studies, but in June 2011, the International Agency for Research on Cancer (IARC), a research organization under the World Health Organization Based on the results of epidemiological studies on the use of mobile phones and brain tumors, electromagnetic waves generated from mobile phones were classified as 2B class cancer inducers.

Therefore, there is a growing interest in exposure levels and exposure sources for individuals, and for epidemiological studies and government policies, it is important that not only the instant exposure level but also the individual exposure pattern (which can depend on the individual's occupation, Exposure frequency and cumulative level depending on time and place) are recognized as important data.

Korea Registered Patent No. 10-1038352 Date of Registration On June 01, 2011, a technique relating to an electromagnetic wave measuring apparatus is disclosed.

Thus, there is a need for portable devices that can conveniently assess exposure levels at any time and anywhere, and collect data on individual exposure patterns, if necessary, based on epidemiological studies.

Accordingly, the present invention uses a portable electromagnetic wave measuring apparatus having a position and time information receiving function to collect intensity of electromagnetic waves and measurement position and time information for electromagnetic waves of various frequencies radiated to the user, The frequency band and time are recorded by measuring the electromagnetic wave exposure level of each frequency band in real time and then the total exposure ratio (TER) is calculated when the frequency band and time are recorded, The present invention also provides a portable electromagnetic wave exposure measuring device and method for monitoring electromagnetic wave exposure by providing information on electromagnetic wave signals based on information on individual exposure amounts,

According to another aspect of the present invention, there is provided an apparatus for measuring the amount of electromagnetic waves, comprising: a sensor unit for receiving an electromagnetic wave signal; a device controller for calculating an exposure time for each frequency by separating an electromagnetic wave signal received from the sensor unit, And a central controller for calculating the exposure index and the cumulative exposure for the individual user of the electromagnetic wave to provide exposure information on the electromagnetic wave.

The central control unit notifies the device control unit of exceeding the reference value when the exposure index is equal to or greater than a preset reference value, and alerts the user of the exposure to the electromagnetic wave through the alarm unit in the device control unit.

The sensor unit may include an antenna for receiving the electromagnetic wave signal, and an RF unit for removing noise from the electromagnetic wave signal received from the antenna and amplifying the electromagnetic wave signal.

The apparatus control unit may further include a digital signal processor for performing digital signal processing on the electromagnetic wave signal, a frequency searcher for separating the electromagnetic wave signal subjected to the digital signal processing by frequency, a timer for counting the frequency- And a data storage unit for storing the frequency-based exposure time.

The central control unit may further include a device setting unit configured to receive and set various settings of the measurement device from a user, a data storage unit to receive and store information on the frequency-specific exposure time from the device control unit, And a data processing unit for calculating an exposure index and an accumulated exposure amount for an individual user of the electromagnetic wave using information on the exposure time.

According to another aspect of the present invention, there is provided a method of measuring an electromagnetic wave exposure dose in a portable electromagnetic wave exposure dose measuring apparatus, comprising: receiving an electromagnetic wave signal from various electromagnetic wave exposure sources around the user through a sensor unit; And calculating exposure exposures for individual users of the electromagnetic waves using the information on the frequency-specific exposure times, and providing exposure information on the electromagnetic waves.

In addition, the step of providing the exposure information may further include warning the exposure of the electromagnetic wave signal when the exposure index is equal to or greater than a preset reference value.

Further, the electromagnetic wave signal is amplified after the noise included in the electromagnetic wave signal is removed from the sensor unit.

The calculating of the frequency-specific exposure time may include: performing digital signal processing on the electromagnetic wave signal; separating the electromagnetic wave signal subjected to the digital signal processing on a frequency-by-frequency basis; And storing the data in a data storage unit.

The present invention relates to an apparatus and method for measuring the amount of electromagnetic waves emitted from a portable electronic device, the method comprising: collecting intensity and measurement position and time information of an electromagnetic wave with respect to electromagnetic waves of various frequencies radiated to a user; The frequency band and the time are measured, and then the information of the electromagnetic wave signal is provided based on the information on the personal exposure amount such as the total exposure index and the alarm is provided, thereby enabling more accurate monitoring of the electromagnetic wave exposure.

In addition, when the exposure level through the frequency filter is compared and if it is determined that the exposure level is exceeded by a predetermined reference value, the timer is activated to record the cumulative exposure time for each frequency, The present invention is advantageous in that it can prevent overexposure of an electromagnetic wave of an individual.

In addition, since the measurement value is divided by the frequency selection filter, it is possible to identify the frequency of the measured electromagnetic wave source, and the epidemiological study on the influence of the electromagnetic wave on the human body using the information such as the exposure index and the cumulative exposure amount per frequency And can provide a policy basis for building a safe electromagnetic environment of the government.

FIG. 1 is a detailed block diagram of a portable electromagnetic wave exposure amount measuring apparatus according to an embodiment of the present invention.
FIG. 2 is a detailed block diagram of a frequency searcher and a timer in a portable electromagnetic wave exposure amount measuring apparatus according to an embodiment of the present invention. FIG.
3 is a flowchart of an operation control process of measuring an exposure amount of electromagnetic waves in a portable electromagnetic wave exposure dose measuring apparatus according to an embodiment of the present invention.

Hereinafter, the operation principle of the present invention will be described in detail with reference to the accompanying drawings. In the following description of the present invention, detailed description of known functions and configurations incorporated herein will be omitted when it may make the subject matter of the present invention rather unclear. The following terms are defined in consideration of the functions of the present invention, and these may be changed according to the intention of the user, the operator, or the like. Therefore, the definition should be based on the contents throughout this specification.

1 is a detailed block diagram of an apparatus 100 for measuring a portable electromagnetic wave according to an embodiment of the present invention. The sensor 110 includes a sensor 110, a position and time information receiver 120, a device controller 130, A central control unit 150, and the like.

Hereinafter, the operation of each component of the portable electromagnetic wave exposure dose measuring apparatus 100 of the present invention will be described in detail with reference to FIG.

First, the sensor unit 110 receives an electromagnetic wave signal from the user and includes an antenna 112 and an RF unit 114. The antenna 112 may receive a broadband electromagnetic wave signal from electromagnetic wave emitters, for example an isotropic antenna.

The RF unit 114 removes the noise signal from the electromagnetic wave signal and amplifies or attenuates the electromagnetic wave signal so that the device control unit 130 and the central control unit 150 can process the electromagnetic wave signal received from the antenna 112 .

The position and time information receiving unit 120 collects position and time information of the electromagnetic wave using a position information system such as a global positioning system (GPS) or a mobile communication base station, and transmits the collected position and time information to the device controller 130. The location and time information of the electromagnetic wave transmitted to the device control unit 130 may be transmitted to the central control unit 150 again from the device control unit 130. At this time, if the position information system can not be used, the time information may be provided to the central control unit 150 using the time circuit built in the electromagnetic wave exposure measuring apparatus 100. [

The device control unit 130 includes a digital signal processor 132 for processing the time average and the logging time of the electromagnetic wave signals received in the electromagnetic wave exposure measuring apparatus 100, A frequency search circuit 134 for classifying frequencies of the frequency bands, a timer 136 for each frequency band, an alarm 140 and a data storage 138 .

The alarm unit 140 can warn the magnitude of the electromagnetic wave signal with the exposure level and the frequency on the preset reference value for the electromagnetic wave signal by a method such as vibration, buzzer, LED alarms and the like.

The frequency of the electromagnetic wave and the exposure time of the electromagnetic wave exposed to the user can be obtained using the frequency searcher 134 and the timer 136 in the configuration of the device control unit 130, Measurement data necessary for epidemiological research and various electromagnetic environment research, for example, exposure frequency information and degree of exposure time can be stored as needed.

2 shows a detailed configuration of a frequency searcher and a timer according to an embodiment of the present invention.

Referring to FIG. 2, the frequency searcher 134 may include a timer operation switch 202 of the frequency band filter 200. The frequency band filter 200 filters the electromagnetic wave signal processed by the digital signal processor 132 according to frequency bands to separate the electromagnetic wave signal into frequency-dependent signals. The timer operation switch 202 switches the frequency band The filter is turned on or off according to the size of the separated signal by frequency band. For example, the timer operation switch 202 may be implemented to be turned on when the magnitude of the signal through the frequency band filter 200 is greater than a predetermined reference value, and otherwise, to be automatically turned off. At this time, the on / off time information of the timer operation switch 202 is stored in the data storage unit 138 and transmitted to the central control unit 150.

The timer 136 may be configured with a plurality of frequency band-specific timers 204 corresponding to the frequency band filter 200. The timer 136 counts time information for turning on / off the timer operation switches 202 connected thereto, (138).

The data processed in the digital signal processor 132 and the measured data may be stored in the electromagnetic wave exposure measuring apparatus 100 or may be provided as a real time warning service in the measuring apparatus 100, , PC, cloud service, or mobile device as exposure information.

The frequency searcher 134 selects various service bands (broadcast frequencies such as AM, FM, TV1, and TV2 and various mobile communication bands, WLAN, etc.) of the electromagnetic wave generator and frequencies for industrial or medical devices Filters, and the user may set a desired frequency band through a device set-up 152 in the central control unit 150 before measurement.

The central control unit 150 includes a device setting unit 152, a data storage unit 154, a data processing unit 156 and a display unit 158. The central control unit 150 may be a data transmission cable such as a USB or a wireless LAN A user can set the measurement device 100 such as a frequency selection of an electromagnetic wave signal to be measured, a signal data, a logging time, a number of times, a vibration and an alarm sound to be measured using the data communication device, Stores and processes the data in the measurement apparatus 100 and manages the data. The central control unit 150 may be located inside or outside the electromagnetic wave exposure measuring apparatus 100.

The device setting unit 152 receives various conditions to be set by the user such as a frequency selection of an electromagnetic wave signal to be measured, data of a signal, a logging time, a number of times, a vibration, Perform the setting.

The data storage unit 154 receives various data information measured for the electromagnetic wave signal from the device control unit 130 and stores the data information.

The data processor 156 may process the data transmitted in real time from the device controller 130 of the electromagnetic wave exposure measuring apparatus 100 in a software manner and may exceed the set reference value, the excess information is transmitted to the device control unit 130 when the exposure ratio ER exceeds "1 ", so that a warning message can be generated through the alarm unit 140 of the device control unit 130 .

In this case, the exposure index (ER) is the exposure ratio to the electromagnetic wave protection standard, and the cumulative exposure (CE) is the exposure level reflecting the cumulative exposure time per frequency. The exposure index (ER) and the cumulative exposure dose (CE) by frequency can be calculated as shown in the following Equation (1).

Such an exposure index (ER) and a cumulative exposure amount (CE) according to frequency can be used for epidemiological studies because it is possible to estimate the exposed electromagnetic wave source through the frequency as information on the individual exposure amount.

3 is a flowchart illustrating an operation control flow for measuring electromagnetic waves in the portable electromagnetic wave exposure dose measuring apparatus 100 according to the embodiment of the present invention. Hereinafter, embodiments of the present invention will be described in detail with reference to FIGS. 1, 2, and 3. FIG.

First, the sensor unit 110 of the portable electromagnetic wave exposure measuring apparatus 100 receives an electromagnetic wave generated from electromagnetic wave exposure sources around the user using an antenna 112 capable of receiving a wideband electromagnetic wave signal from electromagnetic wave exposure sources (S300), removes a noise signal of the electromagnetic wave received through the RF unit 114, and amplifies the noise signal (S302).

The sensor unit 110 transmits the electromagnetic wave signal amplified as described above to the device control unit 130 of the portable electromagnetic wave exposure measuring apparatus 100. The position and time information receiving unit 120 receives the position and time information of the electromagnetic wave, (S304) and transmits the collected information to the device control unit 130. [ At this time, the position and time information receiving unit 120 can collect position and time information of the electromagnetic waves using the position information system such as GPS and mobile communication base station.

The amplified electromagnetic wave signal is transmitted to the device control unit 130 of the portable electromagnetic wave exposure measuring apparatus 100. The device control unit 130 performs digital signal processing on the electromagnetic wave signal applied from the sensor unit 110 And classifies the electromagnetic wave signals according to frequency through the frequency searcher 134.

That is, the device controller 130 filters the electromagnetic wave signal processed by the digital signal processor 132 using frequency searcher 134 by frequency band to separate the electromagnetic wave signal into frequency-dependent signals (S306) The exposure time for each frequency of the electromagnetic wave signal is calculated and stored in the data storage unit 138 (S308).

Information on the frequency-dependent signal and the exposure time of the electromagnetic wave signal is transmitted to the central controller 150, and the central controller 150 controls the frequency of the electromagnetic wave based on the frequency- The cumulative exposure (CE) reflecting the individual exposure index (ER) and the cumulative exposure time for each frequency is calculated (S310).

In this case, the exposure index is the exposure ratio against the electromagnetic wave protection standard, and the cumulative exposure amount is the exposure level reflecting the accumulation time of each frequency. The exposure index (ER) and the cumulative exposure amount (CE) by frequency can be calculated as shown in the above-mentioned formula (1).

Then, the central control unit 150 checks whether the exposure index is greater than a preset reference value (S312). If the exposure index is greater than the reference value, that is, if the exposure ratio (ER) The controller 130 transmits the excess information to the device controller 130 so that a warning message for the electromagnetic wave exposure can be generated through the alarm unit 140 of the device controller 130 at step S314.

However, if the exposure index for the electromagnetic wave is smaller than the reference value, the central controller 150 outputs the information about the exposure index and the cumulative exposure for the electromagnetic wave calculated as described above, so that the user can confirm information about the electromagnetic wave exposure (S316).

As described above, in the present invention, the portable electromagnetic wave measuring apparatus collects the intensity of the electromagnetic wave and the measurement position and time information for electromagnetic waves of various frequencies radiated to the user, and uses the frequency selection filter to measure the electromagnetic wave exposure level for each frequency band in real time The frequency band and time are recorded, and then information of the electromagnetic wave signal is provided based on the information on the personal exposure such as the total exposure index, etc., and by alerting it, more accurate monitoring of the electromagnetic wave exposure is enabled.

In addition, when the exposure level through the frequency filter is compared and if it is determined that the exposure level is exceeded by a predetermined reference value, the timer is activated to record the cumulative exposure time for each frequency, And thus it is possible to prevent overexposure of the electromagnetic wave of the individual.

While the invention has been shown and described with reference to certain preferred embodiments thereof, it will be understood by those skilled in the art that various changes and modifications may be made without departing from the spirit and scope of the invention. Accordingly, the scope of the invention should not be limited by the described embodiments but should be defined by the appended claims.

110: sensor unit 112: antenna
114: RF section 120: Position and time information receiving section
130: device control unit 132: digital signal processor
134: Frequency searcher 136: Timer
138: Data storage unit 140: Alarm unit
150: central control unit 152: device setting unit
154: Data storage unit 156: Data processing unit
158:

Claims (9)

A sensor unit for receiving an electromagnetic wave signal,
An electromagnetic wave signal received from the sensor unit is separated into frequency-dependent signals, and then a timer operation switch is turned on or off according to the magnitude of a signal separated by frequency through a frequency band filter A device controller for counting on / off time information of each signal separated for each stored frequency to calculate an exposure time for each frequency radiated to a user,
An exposure ratio (ER) representing a human body protection standard for the individual user of the electromagnetic wave and an accumulated exposure amount representing an exposure level reflecting the cumulative exposure time for each frequency using the information on the frequency- CE: cumulative exposure) to provide exposure information for electromagnetic waves
And a portable electromagnetic wave exposure amount measuring device.
The method according to claim 1,
The central control unit,
And notifies the device control unit of exceeding the reference value when the exposure index is equal to or greater than a predetermined reference value, thereby warning the exposure to the electromagnetic wave through the alarm unit in the device control unit.
The method according to claim 1,
The sensor unit includes:
An antenna for receiving the electromagnetic wave signal,
An RF unit for removing noise from an electromagnetic wave signal received from the antenna and amplifying the electromagnetic wave signal,
And a portable electromagnetic wave exposure amount measuring device.
The method according to claim 1,
The apparatus control unit includes:
A digital signal processor for performing digital signal processing on the electromagnetic wave signal,
A frequency searcher for separating the electromagnetic wave signals subjected to the digital signal processing by frequency,
A timer for counting the frequency-specific exposure time,
And a data storage unit
And a portable electromagnetic wave exposure amount measuring device.
The method according to claim 1,
The central control unit,
A device setting unit for receiving and setting various settings of the measurement device from a user,
A data storage unit for receiving and storing information on the frequency-specific exposure time from the device controller;
A data processing unit for calculating an exposure index and an accumulated exposure amount for an individual user of the electromagnetic wave using information on the frequency-
And a portable electromagnetic wave exposure amount measuring device.
Receiving an electromagnetic wave signal from various electromagnetic wave exposure sources around the user through a sensor unit;
An electromagnetic wave signal received from the sensor unit is separated into frequency-dependent signals, and then a timer operation switch is turned on or off according to the magnitude of a signal separated by frequency through a frequency band filter Counting on / off time information of each signal separated for each stored frequency to calculate an exposure time for each frequency radiated to the user,
An exposure ratio (ER) representing a human body protection standard for the individual user of the electromagnetic wave and an accumulated exposure amount representing an exposure level reflecting the cumulative exposure time for each frequency using the information on the frequency- CE: cumulative exposure) to provide exposure information for electromagnetic waves
And measuring the intensity of the electromagnetic wave.
The method according to claim 6,
In providing the exposure information,
And warning the exposure to the electromagnetic wave signal if the exposure index is equal to or greater than a preset reference value.
The method according to claim 6,
The electromagnetic wave signal,
The noise included in the electromagnetic wave signal is removed from the sensor unit,
And measuring the intensity of the electromagnetic wave.
The method according to claim 6,
The step of calculating the frequency-
Performing digital signal processing on the electromagnetic wave signal;
Separating the electromagnetic signal processed by the digital signal by frequency,
And calculating and storing the frequency-specific exposure time in the data storage unit
And measuring the intensity of the electromagnetic wave.

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