CN102377496A - Electromagnetic radiation measuring method, device and system - Google Patents

Abstract

The invention discloses an electromagnetic radiation measuring method, device and system. The electromagnetic radiation measuring method comprises the steps of: measuring the receiving power of each carrier of a communication system; calculating the power flux density of measuring points according to the receiving power; and summing up the power flux density of all the carriers in the communication system to obtain the electromagnetic radiation dose of the communication. By means of the electromagnetic radiation measuring method, device and system, the electromagnetic radiation dose of the communication system is obtained by utilizing the receiving power, of a communication system channel, measured by the traditional road test terminal, calculating the power flux density of each carrier on the measuring points, and summing up the power flux density of all the carriers. According to the invention, the electromagnetic radiation dose in the environment can be measured and calculated under the condition that a special radiation measuring instrument is unavailable or is inconvenient to use, engineering personnel can rapidly and simply acquire the electromagnetic radiation dose in the environment, and thus, the working efficiency is increased and the test time is reduced.

Description

Electromagnetic radiation measuring method, Apparatus and system

Technical field

The present invention relates to a kind of wireless communication technology, relate in particular to a kind of electromagnetic radiation measuring method, Apparatus and system.

Background technology

In order to satisfy the demand for development of mobile communication cause, nearly more than ten years, China built a large amount of communication base stations, also existed very big hidden danger---environment electromagnetics radiation pollution when offering convenience for people's life.Electromagnetic radiation pollution has become the fourth-largest pollution in current people's life after water pollution, air pollution, noise pollution.Excessive electromagnetic radiation pollution not only can cause between the electronic equipment and interfere with each other, and also can influence the health of human body.On the other hand, popularizing of environmental protection knowledge increased the worry of people to the communication base station electromagnetic radiation, and the complaint quantity that causes telecom operators in recent years to be received because of electromagnetic radiation sharply rises.

In addition; For the requirement of thoroughly applying the Scientific Outlook on Development and building a resource-conserving and environment-friendly society; Practice thrift soil, the energy and raw-material consumption, conservation of nature environment and view reduce the telecommunications repeated construction; Improve infrastructure of telecommunication utilance; Infrastructure of telecommunication Joint construction and sharing is carried forward vigorously in the Ministry of Industry and Information Technology, State-owned Assets Supervision decision, and operator advances the Joint construction and sharing of iron tower, terrace according to Ministry of Industry and Information's related request of " about advancing the emergency notice of infrastructure of telecommunication Joint construction and sharing ".The construction of Joint construction and sharing base station will certainly increase the electromagnetic radiation dosage around the base station, and this makes operator be faced with more serious base station electromagnetic radiation.

In order to make the green health base station of a new generation; Under the prerequisite that guarantees the public correspondence quality; Farthest protect the public and occupational staff healthy, promote the benign development of mobile communication cause, telecom operators need be according to national environmental protection related specifications and policy; Real-time monitoring city overall electromagnetic radiation level is controlled at the electromagnetic radiation level of base station in the safe range.

The instrument of measuring mobile communication base station electromagnetic radiation dosage at present is generally radiation meter.Can be divided into non-frequency-selecting type broadband radiation measuring instrument and frequency-selecting type radiation meter according to the apparatus measures band limits.Non-frequency-selecting type broadband radiation measuring instrument can be measured all electromagnetic radiation energies in the quite wide frequency band; The frequency-selecting type radiation meter can carry out the measurement of electromagnetic radiation intensity in specific frequency band.

Utilize radiation meter to carry out the base station electromagnetic radiation measuring, need the professional to carry out to specific base stations, need the man power and material of labor, and the testing time is longer according to the method for measurement of standard.

Summary of the invention

The objective of the invention is to, a kind of electromagnetic radiation measuring method, Apparatus and system are provided, can fast, simply obtain electromagnetic radiation dosage in the environment.

For realizing above-mentioned purpose, according to an aspect of the present invention, a kind of electromagnetic radiation measuring method is provided, comprising: measure the received power on each carrier wave of communication system; Calculate the power flux-density of measurement point according to said received power; With the summation of the power flux-density on all carrier waves in the communication system, obtain the electromagnetic radiation dosage of said communication system.

For realizing above-mentioned purpose, according to another aspect of the present invention, a kind of electromagnetic radiation calculation element is provided, comprising:

The power flux-density computing module is used for according to the received power on each carrier wave of communication system, calculates the power flux-density of measurement point;

Summation module is used for the summation of the power flux-density on all carrier waves of communication system is obtained the electromagnetic radiation dosage of said communication system.

Be to realize above-mentioned purpose, according to another aspect of the present invention, a kind of electromagnetic radiation measuring system be provided, comprising:

The drive test terminal is used to measure the received power on each carrier wave of communication system;

The electromagnetic radiation calculation element is used for the power flux-density according to said received power calculating measurement point; With the summation of the power flux-density on all carrier waves in the communication system, obtain the electromagnetic radiation dosage of said communication system.

Wherein, the electromagnetic radiation calculation element is a separate equipment, also can be arranged in said drive test terminal or computer platform side.

Electromagnetic radiation measuring method of the present invention, Apparatus and system; Utilize the received power of the communication system channel of existing drive test terminal measurement; The power flux-density of calculating each carrier wave on measurement point, and the power flux-density of all carrier waves summation obtain the electromagnetic radiation dosage of communication system.Can work as and lack special-purpose radiation meter or inconvenient the use under the special-purpose radiation meter situation; Electromagnetic radiation dosage in the environment is measured calculating; The engineering staff can fast, simply obtain electromagnetic radiation dosage in the environment; Increase work efficiency, reduce the testing time, protect engineering staff's self health and safety in the course of the work effectively.

Description of drawings

Fig. 1 is the flow chart of electromagnetic radiation measuring method embodiment of the present invention;

Fig. 2 is the structure chart of electromagnetic radiation calculation element embodiment of the present invention;

Fig. 3 is the structure chart of electromagnetic radiation measuring system embodiment of the present invention;

Fig. 4 is the flow chart of another embodiment of electromagnetic radiation measuring method of the present invention.

Embodiment

Below in conjunction with accompanying drawing the present invention is elaborated.

The present invention relates generally to and utilizes drive test terminal test data to carry out the methods, devices and systems that the environment electromagnetics radiation dose is measured, and uses the electromagnetic radiation dosage of the computing environment under the special-purpose radiation meter situation when lacking special-purpose radiation meter or inconvenience.

Method embodiment

As shown in Figure 1, electromagnetic radiation measuring method embodiment of the present invention may further comprise the steps:

Step 102 is measured the received power on each carrier wave of communication system, the received power P of the normally single carrier wave that the drive test terminal is measured _R,, can measure the received power P of all carrier waves in the communication system through the adjusting that is provided with to the drive test terminal _R

Step 104 is according to received power P _RCalculate the power flux-density S of measurement point _j, as shown in Figure 4, concrete computational process is following:

(A) according to received power P _RCalculate the received field strength E of measurement point _Rms,

Received field strength E _RmsWith received power P _RBetween relation be:

$P_R=\frac{{\left(E_{\mathrm{rms}}\right)}^2}{120\mathrm{\π}}{A}_R---\left(1\right)$

Wherein, P _RBe the received power on the single carrier wave of communication system, unit is dBm; A _REffective area for reception antenna;

$A_R=\frac{G_R{\mathrm{\λ}}^2}{4\mathrm{\π}}---\left(2\right)$

Wherein, G _RBe antenna gain;

With formula (2) substitution formula (1), the received power that derives measurement point is P _RFor,

$P_R=10\lg \left[\frac{{\left(E_{\mathrm{rms}}\right)}^2{\mathrm{\λ}}^2{G}_R}{480{\mathrm{\π}}^2}\right]+30=10\lg \left[\frac{9\×{10}^3\×{\left(E_{\mathrm{rms}}\right)}^2{G}_R}{48{\mathrm{\π}}^2{f}_{\mathrm{MHz}}^2}\right]+30---\left(3\right)$

E _RmsUnit be every meter (V/m) of volt, the unit of λ be meter (m), f _MHzUnit be megahertz (MHz).

(B) release the field intensity E of acceptance point by formula (3) _RmsFor,

$20\lg E_{\mathrm{rms}}=P_R-10\lg \left(\frac{A_R}{120\mathrm{\π}}\right)-30=P_R-10\lg \left(\frac{{\mathrm{\λ}}^2{G}_R}{480{\mathrm{\π}}^2}\right)-30---\left(4\right)$

(C) according to the received field strength E of measurement point _RmsPower flux-density S on this carrier wave of calculating measurement point _j,

$S_j=\frac{E_{\mathrm{rms}}^2}{120\mathrm{\π}}---\left(5\right)$

The unit of power flux-density is watt every square metre of (w/m ²).

Step 106 with the summation of the power flux-density on all carrier waves in the communication system, obtains the electromagnetic radiation dosage of said communication system,

When comprising a plurality of carrier wave in the said communication system, the power flux-density addition of all carrier waves of measurement point is obtained power flux-density sum S,

$S=\underset{j=n}{\mathrm{\Σ}}{S}_j,---\left(6\right)$

Wherein, S _jBe the power flux-density of each carrier wave, n is the number of communication system intercarrier;

When comprising a plurality of different systems system in the said communication system,, obtain this communication system at total power flux density S with the power flux-density sum addition of intrasystem all carrier waves of each standard of each system _Always,

Wherein, S _iBe the power flux-density sum of intrasystem all carrier waves of each standard, comprise m different systems system in the said communication system.

In the present embodiment, the communication system of different systems includes but not limited to following system:

GSM900/1800 system, TD-SCDMA system, WCDMA system, CDMA2000 system, LTE TDD/FDD system, wlan system and/or WiMAX system.

The electromagnetic radiation measuring method of present embodiment; Utilize the received power of the communication system channel of existing drive test terminal measurement; The power flux-density of calculating each carrier wave on measurement point, and the power flux-density of all carrier waves summation obtain the electromagnetic radiation dosage of communication system.Can work as and lack special-purpose radiation meter or inconvenient the use under the special-purpose radiation meter situation; Electromagnetic radiation dosage in the environment is measured calculating; Drive test data obtains relatively easily, and the engineering staff can fast, simply obtain electromagnetic radiation dosage in the environment, increases work efficiency; Reduce the testing time, protect engineering staff's self health and safety in the course of the work effectively.

In the present embodiment; If only need estimate to the electromagnetic radiation dosage in the environment, for a standard system, then can be after calculating the power flux-density of some carrier waves; Multiply by the number of system's intercarrier, promptly obtain a general electromagnetic radiation dosage.Like this, simple more, quick to the calculating of the electromagnetic radiation dosage in the environment, and error is within the acceptable range.

Device embodiment

As shown in Figure 2, electromagnetic radiation calculation element embodiment of the present invention comprises:

Power flux-density computing module 22 is used for according to the received power on each carrier wave of communication system, calculates the power flux-density of measurement point;

Summation module 24 is used for the summation of the power flux-density on all carrier waves of communication system is obtained the electromagnetic radiation dosage of said communication system.

Wherein, power flux-density computing module 22 calculates the received field strength of measurement point according to received power, and calculates the power flux-density on this carrier wave of said measurement point according to the received field strength of said measurement point.

Summation module 24; When comprising a plurality of different systems system in the said communication system; Further, obtain this communication system, obtain the electromagnetic radiation dosage of said communication system in total power flux density with the power flux-density sum addition of intrasystem all carrier waves of each standard of each system.

In the present embodiment, summation specifies in method embodiment for the computational methods of power flux-density and to the power flux-density on all carrier waves, repeats no more at this.

The electromagnetic radiation calculation element of present embodiment; Utilize the received power of the communication system channel of existing drive test terminal measurement; The power flux-density of calculating each carrier wave on measurement point, and the power flux-density of all carrier waves summation obtain the electromagnetic radiation dosage of communication system.Can work as and lack special-purpose radiation meter or inconvenient the use under the special-purpose radiation meter situation; Electromagnetic radiation dosage in the environment is measured calculating; The engineering staff can fast, simply obtain electromagnetic radiation dosage in the environment; Increase work efficiency, reduce the testing time, protect engineering staff's self health and safety in the course of the work effectively.

System embodiment

As shown in Figure 3, electromagnetic radiation measuring system embodiment of the present invention comprises:

Drive test terminal 32 is used to measure the received power on each carrier wave of communication system, through the adjusting that is provided with to the drive test terminal, can measure the received power of all carrier waves in the communication system;

Electromagnetic radiation calculation element 34 is used for the power flux-density according to said received power calculating measurement point; With the summation of the power flux-density on all carrier waves in the communication system, obtain the electromagnetic radiation dosage of said communication system.

Wherein, the electromagnetic radiation calculation element can be separate equipment, also can be arranged in drive test terminal or computer platform side.

The electromagnetic radiation measuring system of present embodiment; Utilize the received power of the communication system channel of existing drive test terminal measurement; The power flux-density of calculating each carrier wave on measurement point, and the power flux-density of all carrier waves summation obtain the electromagnetic radiation dosage of communication system.Can work as and lack special-purpose radiation meter or inconvenient the use under the special-purpose radiation meter situation; Electromagnetic radiation dosage in the environment is measured calculating; The engineering staff can fast, simply obtain electromagnetic radiation dosage in the environment; Increase work efficiency, reduce the testing time, protect engineering staff's self health and safety in the course of the work effectively.

What should explain is: above embodiment is only unrestricted in order to explanation the present invention, and the present invention also is not limited in above-mentioned giving an example, and all do not break away from the technical scheme and the improvement thereof of the spirit and scope of the present invention, and it all should be encompassed in the claim scope of the present invention.

Claims (10)

1. an electromagnetic radiation measuring method is characterized in that, comprising:

Measure the received power on each carrier wave of communication system;

Calculate the power flux-density of measurement point according to said received power;

With the summation of the power flux-density on all carrier waves in the communication system, obtain the electromagnetic radiation dosage of said communication system.

2. electromagnetic radiation measuring method according to claim 1 is characterized in that, said operation of calculating the power flux-density of measured place according to said received power specifically comprises:

Calculate the received field strength E of measurement point according to received power _Rms,

Wherein, P _RBe the received power on the single carrier wave of communication system, unit is dBm; A _REffective area for reception antenna; E _RmsUnit be every meter of volt, the unit of λ be meter;

Wherein,

G _RBe antenna gain, can get thus,

$201g{E}_{\mathrm{rms}}=P_R-10\lg \left(\frac{{\mathrm{\λ}}^2{G}_R}{480{\mathrm{\π}}^2}\right)-30;$

Received field strength E according to said measurement point _RmsCalculate the power flux-density S on this carrier wave of said measurement point _j,

The unit of power flux-density is watt every square metre.

3. electromagnetic radiation measuring method according to claim 2 is characterized in that, when comprising a plurality of carrier wave in the said communication system, the power flux-density addition of all carrier waves of measurement point is obtained power flux-density sum S,

S _jBe the power flux-density of each carrier wave, n is the number of communication system intercarrier.

4. electromagnetic radiation measuring method according to claim 3; It is characterized in that; When comprising a plurality of different systems system in the said communication system,, obtain this communication system at total power flux density S with the power flux-density sum addition of intrasystem all carrier waves of each standard of each system _Always,

S _iBe the power flux-density sum of intrasystem all carrier waves of each standard, comprise m different systems system in the said communication system.

5. electromagnetic radiation measuring method according to claim 4 is characterized in that, the communication system of said different systems comprises:

GSM900/1800 system, TD-SCDMA system, WCDMA system, CDMA2000 system, LTE TDD/FDD system, wlan system and/or WiMAX system.

6. an electromagnetic radiation calculation element is characterized in that, comprising:

The power flux-density computing module is used for according to the received power on each carrier wave of communication system, calculates the power flux-density of measurement point;

Summation module is used for the summation of the power flux-density on all carrier waves of communication system is obtained the electromagnetic radiation dosage of said communication system.

7. electromagnetic radiation calculation element according to claim 6; It is characterized in that; Said power flux-density computing module calculates the received field strength of measurement point according to received power, and calculates the power flux-density on this carrier wave of said measurement point according to the received field strength of said measurement point.

8. electromagnetic radiation calculation element according to claim 7 is characterized in that,

Said summation module; When comprising a plurality of different systems system in the said communication system; Further, obtain this communication system, obtain the electromagnetic radiation dosage of said communication system in total power flux density with the power flux-density sum addition of intrasystem all carrier waves of each standard of each system.

9. an electromagnetic radiation measuring system is characterized in that, comprising:

The drive test terminal is used to measure the received power on each carrier wave of communication system;

The electromagnetic radiation calculation element is used for the power flux-density according to said received power calculating measurement point; With the summation of the power flux-density on all carrier waves in the communication system, obtain the electromagnetic radiation dosage of said communication system.

10. electromagnetic radiation measuring according to claim 9 system is characterized in that said electromagnetic radiation calculation element is a separate equipment, is arranged in said drive test terminal or computer platform side.

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