KR20050021638A - The method of warning about electro magnetic waves which release from cellular phone - Google Patents

Abstract

PURPOSE: A method for informing a user about the amount of electromagnetic waves discharged from a mobile terminal in voice or as a message is provided to reduce a bad influence of electronic waves on a user by accurately calculating the amount of electronic waves and informing the user about it. CONSTITUTION: A mobile terminal is in an idle state(200). When a call is received from the other party, it is checked whether the mobile terminal is busy for call communication(210). If the mobile terminal is busy, a calculator of the mobile terminal calculates the amount of electromagnetic waves by multiplying output power according to a call time(220). It is checked whether the calculated amount of electromagnetic waves exceed a safe reference value(230). If the calculated amount of electromagnetic waves exceed the safe reference value, an alarm sound is generated or a warning message is sent to a user of the mobile terminal(240).

Description

{The method of warning about electro magnetic waves which release from cellular phone}

The present invention relates to an electromagnetic wave warning method of a mobile communication terminal having a function of protecting a human body from electromagnetic waves harmful to a human body by informing the user of the amount of electromagnetic waves emitted by the terminal. In particular, the present invention relates to a terminal for calculating an amount of electromagnetic waves generated during a transmission / reception process using (output power) * (use time) to notify a user by voice and a message whenever the amount of electromagnetic waves exceeds a certain level.

The mobile communication terminal, which has become a necessity of most people, is not only easy to carry, but also makes it possible to make a call while traveling, bringing convenience to busy modern people. However, when using a mobile communication terminal to send and receive with the other party, it is reported that the academic community that emits harmful electromagnetic waves to the user, and adversely affects the brain, it is a social problem, the international standard for electromagnetic waves It is legally regulated by the establishment.

Electromagnetic waves cause changes in the distribution of ions such as melatonin, a hormone that acts as a biological clock in the human body, sodium and potassium across cell membranes, and also cause vision loss, cancer and leukemia, increase body heat, and promote skin aging. There are problems that cause physical harm, such as headaches. In order to secure such a point, a conventional mobile communication terminal attaches a sticker for blocking electromagnetic waves, an antenna for blocking electromagnetic waves, or an electromagnetic wave attenuator to the mobile communication terminal to reduce the amount of electromagnetic waves. In addition, by recognizing that the electromagnetic wave is excessively emitted or when the talk time becomes long, a method such as generating a warning sound to the user is proposed to prevent the user from electromagnetic waves. However, these methods have a role of preventing the human body from electromagnetic waves, but there is a problem in that it is not possible to measure the exact amount of electromagnetic waves, thereby giving confidence to the user.

Therefore, the present invention calculates the amount of electromagnetic waves as (output power) * (use time), and whenever a quantity of electromagnetic waves exceeds a certain level, the user is warned about the electromagnetic waves by voice and messages, thereby receiving a user from the electromagnetic waves. In addition to reducing possible adverse effects, accurate calculation of the amount of electromagnetic waves and alerts to give the user a confidence.

In order to achieve the above object, an electromagnetic wave warning apparatus and method of a mobile communication terminal according to the present invention will be described in detail with reference to the accompanying drawings.

1 is a block diagram of an electromagnetic wave warning device of a mobile communication terminal according to the present invention.

The electromagnetic wave warning device 100 includes an electromagnetic wave signal sensor 110, an operation unit 120, and an alarm signal generation unit 130. The electromagnetic signal sensor 110 detects electromagnetic waves emitted from the mobile communication terminal. The amount of detected electromagnetic waves is calculated as the output power output from the mobile communication terminal and the usage time using the mobile communication terminal when the user is using the mobile communication terminal through the detection signal calculating unit 120. It is judged whether it is more than enough value to affect the human body, and if it reaches the value determined to affect the human body, it outputs the analog (or digital) signal value by the program logic value inputted beforehand. . In this case, the constant value means an allowance for exposure to electromagnetic waves in the frequency range of 100 kHz to 300 GHz by the International Radiation Protection Association (IRPA), which makes recommendations on the issue of human safety in accordance with WHO. Here, the safety reference value will be described.

Table 1 lists the safety standards for ANSI's management environment.

TABLE 1

Frequency f (MHz) Field strength (V / m) Magnetic field strength (A / m) Power Density (mW / cm ² ) 0.003 ~ 0.1 614 163 (100,1000000) 0.1 ~ 1.34 614 16.3 / f (100,10000 / f ² ) 3-30 1842 / f 16.3 / f (900 / f ² , 1000 / f ² ) 30-300 61.4 16.3 / f (1,10000 / f ² ) 300-1000 61.4 0.163 One 1000-3000 - f / 300 3000-15000 - 10 15000 ~ 300000 - 10

Table 2 shows safety standards for professionals.

TABLE 2

Frequency f (MHz) Field strength (V / m) Magnetic field strength (A / m) Power Density (mW / cm ² ) 0.1 ~ 1 614 1.6 / f - 1-10 614 / f 1.6 / f - 10-400 61 0.16 One 400-2000 3f ^1/2 0.008f ^1/2 f / 400 2000 ~ 300000 137 0.36 5

Table 3 shows safety standards for the public.

TABLE 3

Frequency f (MHz) Field strength (V / m) Magnetic field strength (A / m) Power Density (mW / cm ² ) 0.1 ~ 1 87 0.23f ^1/2 - 1-10 87f ^1/2 0.23f ^1/2 - 10-400 27.5 0.073 0.2 400-2000 1.375f ^1/2 0.0037 f / 2000 2000 ~ 300000 61 0.16 One

 In Table 2, the safety threshold at 10 MHz or less is based on the criteria that the average current induced in the human body by electromagnetic waves during 6 minutes during work should be 200 mA or less. The safety threshold at 10 MHz or higher is 0.4 W for 6 minutes. The reason is that it should be less than / kg. Here, SAR (Specific Absorption Rate) means absorption power per unit weight, and when the whole body average of SAR exceeds 4 ~ 8W / kg, the internal body temperature rises, which is the basic value of the high frequency human protection standard. The default value ensures that the overall average does not exceed 0.4 W / kg.

In Table 3, the safety threshold above 10 MHz is based on an average of 0.08 W / kg or less for 6 minutes. In general, since a mobile communication terminal uses an 800 MHz microwave, the safety reference value is f / 2000 = 800/2000 = 0.4 mW / cm ^{2 according} to Table 3, and therefore, the average power density for 6 minutes should be 0.4 mW / cm ² or less.

The alarm signal generator 130 outputs an alarm signal according to the value of the signal output from the detection signal calculator, and the alarm signal may be composed of a voice or a message.

2 is a flowchart illustrating an electromagnetic wave warning device in a mobile communication terminal according to the present invention.

When the mobile communication terminal is in an idling state 200 which operates in a closed state, such as waiting for reception, when a call is received from the other party, it is discriminated whether it is in a call (210). If it is assumed that a call is in progress, the calculator in the mobile communication terminal calculates the amount of electromagnetic waves by multiplying the output power according to the call time (220). It is determined whether the calculated amount of electromagnetic waves exceeds the safety reference value 0.4 mW / cm ² as described above (230), and when it is determined that the amount of the electromagnetic safety reference value is exceeded, the voice and text message is transmitted to the user of the mobile communication terminal. The warning sound or warning message about the electromagnetic wave is sent (240). If the safety threshold is not exceeded, no beep will sound. However, even if no alarm is generated, if the call continues, the amount of electromagnetic waves is continuously calculated to determine whether the amount of electromagnetic waves exceeds the safety standard (230). Therefore, the user can not only make a call freely during a call, but also can prevent from electromagnetic waves applied to the human body from electromagnetic waves, thereby releasing from harm caused by electromagnetic waves. In addition, the exact amount of electromagnetic waves is calculated and reported to make the user more reliable.

Accordingly, the present invention, by using a mobile communication terminal in advance to store the safety reference value for the electromagnetic waves determined in advance in the terminal to prevent from physical harm such as vision damage, headache, fever and cancer as well as changes in ion distribution In addition, a warning sound and a warning message are transmitted to the user whenever the reference rate of the electromagnetic wave is exceeded, so that the user can prevent the electromagnetic wave in advance. In addition, the calculation of the electromagnetic wave by (output power) * (talk time) gave more confidence to the user by measuring the electromagnetic wave more accurately and informing the users.

1 is a block diagram of an electromagnetic wave warning device of a mobile communication terminal according to the present invention.

2 is an operation flowchart of an electromagnetic wave warning device of a mobile communication terminal according to the present invention.

Claims (2)

A first step in which the mobile communication terminal is in an idle state of a reception standby and enters a call mode; A second step of calculating an amount of electromagnetic waves during a call as (output power) * (use time); The calculated amount of electromagnetic waves A third step of judging whether or not it has passed; A fourth step of generating a warning sound and a warning message if the value is greater than or equal to the safety reference value according to the determination; Electromagnetic wave warning method of a mobile communication terminal comprising a. The method of claim 1, The safety reference value is 0.4mW / cm ² The electromagnetic wave warning method of a mobile communication terminal.