KR20130056021A - Apparatus for measuring electromagnetic waves exposure and method thereof - Google Patents

Abstract

PURPOSE: A portable electromagnetic wave exposure measuring device and a method thereof are provided to collect the intensity, measuring location, and time information of an electromagnetic wave radiated to a user by using a portable electromagnetic wave exposure measuring device equipped with a function of receiving location and time information, and to monitor electromagnetic wave exposure based on the collected information about individual exposure. CONSTITUTION: A portable electromagnetic wave exposure measuring device includes the following parts: a sensor part(110) receiving electromagnetic wave signals; a device control part(130) calculating exposure time for each frequency by dividing the electromagnetic wave signals received from the sensor part for each frequency; and a central control part(150) calculating an exposure index and accumulated exposure of electromagnetic waves to an individual user by using the information about exposure time for each frequency, and providing exposure information about the electromagnetic waves. [Reference numerals] (110) Sensor part; (114) RF part; (120) Location and time information receiving part; (130) Device control part; (132) Digital signal processor; (134) Frequency explorer; (136) Timer; (138,154) Data storage part; (140) Alarm part; (152) Device setting part; (156) Signal processing part; (158) Display part; (AA) Data processing

Description

Portable electromagnetic wave exposure measuring apparatus and method {APPARATUS FOR MEASURING ELECTROMAGNETIC WAVES EXPOSURE AND METHOD THEREOF}

The present invention relates to an electromagnetic wave measuring device, and in particular, by using a portable electromagnetic wave measuring device having a position and visual information receiving function to collect the intensity and measurement position and time information of the electromagnetic wave with respect to electromagnetic waves of various frequencies emitted to the user , Using the frequency selection filter to measure the electromagnetic wave exposure level for each frequency band in real time and record the frequency band and time, and then the total exposure index if it exceeds the preset reference value based on data measured by the central control unit inside or outside the device. The present invention relates to a portable electromagnetic wave exposure measuring apparatus and method for providing information on an electromagnetic wave signal based on information on an individual exposure amount such as a total exposure ratio (TER) and the like to monitor an electromagnetic wave exposure.

In general, as the frequency of use of the device that uses electromagnetic waves in daily life increases, the public and workers are frequently exposed to various electromagnetic sources. At present, the relationship between the effects of electromagnetic waves from these devices on the human body has not been clearly identified through epidemiological studies and animal experiments. In June 2011, the International Cancer Research Institute (IARC), a research organization under the World Health Organization (WHO), Based on the results of epidemiological studies on the relationship between the use of mobile phones and the development of brain tumors, electromagnetic waves generated from mobile phones were classified as cancer-causing substances, class 2B.

As a result, there is increasing interest in exposure levels and sources of exposure to electromagnetic waves, and in addition to instantaneous levels of exposure for epidemiological studies or government policy, it is possible to rely on individual exposure patterns (personal occupation, status and lifestyle). Exposure frequency and cumulative levels over time and place) are recognized as important data.

Republic of Korea Patent No. 10-1038352 Date of registration June 01, 2011 discloses a technology related to the electromagnetic wave measuring device.

Accordingly, there is a need for a portable device that can conveniently evaluate the exposure level anytime, anywhere and collect data on the exposure pattern of the individual based on epidemiological studies if necessary.

Accordingly, the present invention collects the intensity and measurement position and time information of the electromagnetic wave with respect to the electromagnetic waves of various frequencies emitted to the user by using a portable electromagnetic measuring device having a position and time information receiving function, using a frequency selection filter Measure the exposure level of each frequency band in real time and record the frequency band and time, and then the total exposure ratio (TER) if it exceeds the preset reference value based on the data measured by the central control unit inside or outside the device. The present invention provides a portable electromagnetic wave exposure measurement apparatus and method that provides information on an electromagnetic wave signal based on information on an individual exposure amount and monitors the electromagnetic wave exposure.

The present invention described above is a portable electromagnetic wave exposure measurement apparatus, comprising: a sensor unit for receiving an electromagnetic wave signal, an apparatus controller for calculating an exposure time for each frequency by separating the electromagnetic wave signal received from the sensor unit for each frequency, and the exposure time for each frequency; And a central control unit providing exposure information on the electromagnetic wave by calculating an exposure index and a cumulative exposure amount of the electromagnetic wave for the individual user.

In addition, when the exposure index is greater than or equal to a predetermined reference value, the central control unit notifies the device control unit of exceeding the reference value and alerts the exposure to the electromagnetic wave through an 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 controller may further include a digital signal processor for performing digital signal processing on the electromagnetic signal, a frequency searcher for separating the electromagnetic signal processed by the digital signal by frequency, a timer for counting the exposure time for each frequency, and And a data storage for storing the exposure time for each frequency.

The central control unit may include a device setting unit configured to receive and set various settings of the measuring device from a user, a data storage unit receiving and storing information on the exposure time for each frequency from the device controller, and the frequency-specific unit. And a data processor for calculating an exposure index and a cumulative exposure amount for the individual user of the electromagnetic wave by using the information on the exposure time.

In addition, the present invention is a method for measuring the electromagnetic wave exposure amount in a portable electromagnetic wave exposure measurement apparatus, receiving an electromagnetic wave signal from various electromagnetic wave exposure sources around the user through a sensor unit, and separates the electromagnetic wave signal received from the sensor unit for each frequency Comprising a step of calculating the exposure time for each star, and providing the exposure information for the electromagnetic wave by calculating the exposure index and cumulative exposure amount for the individual user of the electromagnetic wave by using the information on the exposure time for each frequency.

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

The electromagnetic signal may be amplified after the noise included in the electromagnetic signal is removed from the sensor unit.

The calculating of the exposure time for each frequency may include performing digital signal processing on the electromagnetic signal, separating the electromagnetic signal processed by the digital signal by frequency, and calculating the exposure time for each frequency. And storing the data in the data storage unit.

The present invention is a portable electromagnetic wave exposure measurement apparatus, collects the intensity and measurement position and time information of the electromagnetic wave with respect to the electromagnetic wave of various frequencies emitted to the user, and using the frequency selection filter in real time to the electromagnetic wave exposure level for each frequency band After measuring and recording the frequency band and time, it provides the information of the electromagnetic signal based on the information on the individual exposure, such as the total exposure index, there is an advantage to enable more accurate monitoring of the electromagnetic wave exposure by alarming.

In addition, when the exposure level through the frequency filter is judged to be exposed to electromagnetic waves exceeding a predetermined reference value, a timer is operated to record the cumulative exposure time for each frequency, so that the individual such as the exposure index and the cumulative exposure amount for each frequency, etc. By providing historical information related to the electromagnetic wave exposure of the individual has the advantage of preventing overexposure to the electromagnetic wave.

In addition, the frequency selection filter classifies the measured values so that the frequency of the electromagnetic wave exposure source can be identified, and the epidemiological study on the effect of electromagnetic waves on the human body using information such as the exposure index and the cumulative exposure for each frequency. It can be used as the input data of and can provide a policy basis for the government to establish a safe electromagnetic environment.

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

Hereinafter, with reference to the accompanying drawings will be described in detail the operating principle of the present invention. In the following description of the present invention, if it is determined that a detailed description of a known function or configuration may unnecessarily obscure the subject matter of the present invention, the detailed description thereof will be omitted. The following terms are defined in consideration of the functions of the present invention, and may be changed according to the intentions or customs of the user, the operator, and the like. Therefore, the definition should be based on the contents throughout this specification.

1 illustrates a detailed block configuration of a portable electromagnetic wave exposure measurement apparatus 100 according to an embodiment of the present invention, wherein a sensor unit 110, a position and time information receiving unit 120, and a device control unit 130 are provided. , The central control unit 150, and the like.

Hereinafter, with reference to Figure 1 will be described in detail the operation of each component of the portable electromagnetic wave exposure measurement apparatus 100 of the present invention.

First, the sensor unit 110 is an apparatus for receiving electromagnetic signals around a user, and includes an antenna 112 and an RF unit 114. The antenna 112 may receive a wideband electromagnetic wave signal from electromagnetic wave exposure sources, and may be, for example, an isotropic antenna.

The RF unit 114 removes a noise signal from the electromagnetic wave signal and amplifies or attenuates the electromagnetic wave signal in order to process the electromagnetic wave signal received from the antenna 112 in the device controller 130 and the central controller 150. Can be.

The location and time information receiver 120 collects the location and time information where the electromagnetic wave is generated and transmits the location and time information to the device controller 130 using a location information system such as a global positioning system (GPS) or a mobile communication base station. As such, the location and time information on which the electromagnetic wave is transmitted to the device controller 130 may be transmitted from the device controller 130 to the central controller 150 again. In this case, when it is impossible to use the location information system, the time information may be provided to the central controller 150 using a visual circuit built in the electromagnetic wave exposure measurement apparatus 100.

The device controller 130 is a digital signal processor 132 and an electromagnetic wave reception signal that perform processing on a time average, a logging time, etc., at which an electromagnetic wave signal is received, in the electromagnetic wave exposure measurement apparatus 100. A frequency search circuit 134 for classifying the frequencies of the signals, a timer 136 for each frequency band, an alarm 140, and a data storage 138. .

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

Using the frequency searcher 134 and the timer 136 in the configuration of the device controller 130 as described above, the frequency of the electromagnetic waves exposed to the user and the exposure time information exposed to the electromagnetic waves can be obtained, and the data storage unit 138 If necessary, measurement data necessary for epidemiological studies and various electromagnetic environment studies, for example, exposure frequency information and exposure time, may be stored.

2 illustrates 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 for each frequency band to separate the electromagnetic wave signal into frequency-specific signals, and the timer operation switch 202 is a frequency band. The filter is turned on or off depending on the magnitude of the separated signal for each 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 larger than a predetermined predetermined reference value, or to be automatically turned off. In this case, 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 as a plurality of frequency band timers 204 corresponding to the frequency band filter 200, and the data storage unit may count time information when the connected timer operation switch 202 is turned on / off. Stored at (138).

The data processed by the digital signal processor 132 and the measured data may be stored in the electromagnetic wave exposure measurement apparatus 100 or provided as a real-time warning service in the measurement apparatus 100, or a web set by a user. Can be transmitted as exposure information measured by a PC, a cloud service, or a mobile device.

In addition, the frequency searcher 134 selects various service bands (eg, AM, FM, TV1, TV2, etc.) and various mobile communication bands (WLAN, etc.) and frequencies for industrial or medical equipment of the electromagnetic wave generating device for frequency searching. The filter may be configured, and the user may set a desired frequency band through the device set-up 152 in the central controller 150 before the measurement.

The central control unit 150 includes a device setting unit 152, a data storage unit 154, a data processing unit 156, a monitor 158, and the like, and a data transmission cable such as USB or a wireless LAN. By using the data communication device, such as frequency selection of the electromagnetic signal to be measured, data of the signal, logging time (logging time), the number of times, such as vibration and alarm sound to enable the user to set the measurement device 100, The data in the measurement apparatus 100 is stored, processed, and managed. The central control unit 150 as described above may be located inside or outside the electromagnetic wave exposure measurement apparatus 100.

The device setting unit 152 receives various conditions that the user wants to set in the measuring device 100, such as frequency selection, signal data, logging time, frequency, vibration, and alarm sound of the electromagnetic signal to be measured. Perform setup.

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

The data processor 156 may process data transmitted in real time from the device controller 130 of the electromagnetic wave exposure measuring apparatus 100 in software, and may exceed a set reference value or may indicate a personal exposure index. (exposure ratio: ER), for example, exceeds "1" to transmit such excess information to the device control unit 130 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 an exposure ratio compared to the electromagnetic wave human protection standard, and cumulative exposure (CE) is an exposure level reflecting the cumulative exposure time for each frequency. The exposure index ER and the cumulative exposure amount CE by frequency may be calculated as in Equation 1 below.

The exposure index (ER) and the cumulative exposure amount (CE) for each frequency can be used for epidemiological studies because the exposure electromagnetic wave source can be estimated through frequency as information on the individual exposure amount.

3 illustrates an operation control flow for measuring electromagnetic waves in the portable electromagnetic wave exposure 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.

First, the sensor unit 110 of the portable electromagnetic wave exposure measuring apparatus 100 receives the electromagnetic waves generated from the electromagnetic wave exposure sources around the user by using the antenna 112 that can receive a wideband electromagnetic signal from the electromagnetic wave exposure sources. In operation S300, the noise signal of the electromagnetic wave received through the RF unit 114 is removed and then amplified (S302).

Subsequently, the sensor unit 110 transmits the amplified electromagnetic wave signal to the device controller 130 in the portable electromagnetic wave exposure measuring apparatus 100, and the position and time information receiving unit 120 receives the position and time information from which the electromagnetic wave is received. Collect (S304) and transmits to the device control unit 130. In this case, the location and time information receiver 120 may collect location and time information from which electromagnetic waves are generated by using a location information system such as a GPS and a mobile communication base station.

The amplified electromagnetic wave signal is transmitted to the device controller 130 of the portable electromagnetic wave exposure measuring apparatus 100, and the device controller 130 performs digital signal processing on the electromagnetic signal applied from the sensor unit 110. In addition, the frequency searcher 134 classifies the electromagnetic wave signal by frequency.

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

The information on the frequency-specific signal and the exposure time of the electromagnetic signal as described above is transmitted to the central control unit 150, whereby the central control unit 150 by using the information about the frequency-specific signal and exposure time of the electromagnetic wave signal for the electromagnetic wave Cumulative exposure (CE) reflecting the individual exposure index (ER) and the cumulative exposure time by frequency is calculated (S310).

In this case, the exposure index is an exposure ratio compared to the electromagnetic wave protection standards, and the cumulative exposure amount is an exposure level reflecting the cumulative exposure time for each frequency. The exposure index ER and the cumulative exposure amount CE for each frequency may be calculated as in Equation 1 described above.

Subsequently, the central controller 150 checks whether the exposure index is greater than the preset reference value (S312), and if the exposure index is larger than the reference value, that is, for example, the exposure ratio (ER) exceeds "1". In this case, the excess information is transmitted to the device controller 130 so that a warning message for electromagnetic wave exposure may be generated through the alarm unit 140 of the device controller 130 (S314).

On the other hand, when the exposure index for the electromagnetic wave is smaller than the reference value, the central control unit 150 outputs the information on the exposure index and the cumulative exposure amount of the electromagnetic wave calculated as described above so that the user can check the information on the electromagnetic wave exposure. (S316).

As described above, in the present invention, the portable electromagnetic wave measuring device collects the intensity, the measurement position, and the time information of the electromagnetic wave with respect to the electromagnetic wave of various frequencies, and uses the frequency selection filter to real-time the electromagnetic wave exposure level for each frequency band. After measuring the frequency band and time, and recording the frequency band and time, it provides the information of the electromagnetic signal based on the information on the individual exposure, such as the total exposure index, and by alerting it to enable more accurate monitoring of the electromagnetic exposure.

In addition, when the exposure level through the frequency filter is judged to be exposed to electromagnetic waves exceeding a predetermined reference value, a timer is operated to record the cumulative exposure time for each frequency, so that the individual such as the exposure index and the cumulative exposure amount for each frequency, etc. By providing historical information related to the electromagnetic wave exposure of the individual can prevent overexposure of the individual electromagnetic wave.

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 unit 120: location and time information receiving unit
130: device control unit 132: digital signal processor
134: frequency searcher 136: timer
138: data storage 140: alarm
150: central control unit 152: device setting unit
154: data storage unit 156: data processing unit
158: display unit

Claims (9)

A sensor unit for receiving an electromagnetic wave signal,
An apparatus control unit for calculating an exposure time for each frequency by separating the electromagnetic wave signal received from the sensor unit for each frequency;
Central control unit for providing exposure information for electromagnetic waves by calculating the exposure index and cumulative exposure amount for the individual user of the electromagnetic waves by using the information on the exposure time for each frequency
Portable electromagnetic wave exposure measurement device comprising a.
The method of claim 1,
The central control unit,
And when the exposure index is greater than or equal to a predetermined reference value, notifying the device controller of exceeding the reference value, and warning the exposure to the electromagnetic wave through an alarm unit in the device controller.
The method of claim 1,
The sensor unit includes:
An antenna for receiving the electromagnetic signal;
RF unit for removing noise from the electromagnetic wave signal received from the antenna and amplifying the electromagnetic wave signal
Portable electromagnetic wave exposure measurement device comprising a.
The method of claim 1,
The apparatus control unit includes:
A digital signal processor for performing digital signal processing on the electromagnetic signal;
A frequency searcher for separating the digital signal processed electromagnetic wave signal by frequency;
A timer for counting the exposure time for each frequency;
Data storage unit for storing the exposure time for each frequency
Portable electromagnetic wave exposure measurement device comprising a.
The method of claim 1,
The central control unit,
A device setting unit configured to receive and set various settings of the measuring device from a user;
A data storage unit for receiving and storing information on the exposure time for each frequency from the device controller;
Data processing unit for calculating the exposure index and cumulative exposure amount for the individual user of the electromagnetic wave by using the information on the exposure time for each frequency
Portable electromagnetic wave exposure measurement device comprising a.
Receiving an electromagnetic wave signal from various electromagnetic wave sources around the user through the sensor unit;
Calculating an exposure time for each frequency by separating the electromagnetic wave signal received from the sensor unit for each frequency;
Calculating exposure index and cumulative exposure amount for the individual user of the electromagnetic wave by using the information on the exposure time for each frequency to provide exposure information for the electromagnetic wave
Electromagnetic radiation dose measurement method comprising a.
The method according to claim 6,
In the providing of the exposure information,
If the exposure index is greater than or equal to a predetermined reference value, warning of exposure to the electromagnetic wave signal.
The method according to claim 6,
The electromagnetic signal is,
After the noise included in the electromagnetic signal is removed from the sensor unit, the amplified signal is amplified.
Electromagnetic radiation dose measurement method comprising a.
The method according to claim 6,
The step of calculating the exposure time for each frequency,
Performing digital signal processing on the electromagnetic signal;
Separating the electromagnetic wave signal processed by the digital signal for each frequency;
Calculating the exposure time for each frequency and storing the exposure time in a data storage unit;
Electromagnetic radiation dose measurement method comprising a.

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