CN111246505B - Communication base station radiation early warning system - Google Patents
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Abstract
The invention relates to the technical field of electromagnetic radiation monitoring in environment, in particular to a communication base station radiation early warning system. Firstly, acquiring the distance between a mobile communication terminal and a communication base station, and then calculating the prediction intensity of an electromagnetic radiation signal required by the communication base station for realizing normal communication of the mobile communication terminal at a monitoring point according to the distance value; acquiring the actually measured intensity of the electromagnetic radiation signal of the monitoring point; calculating the difference value between the predicted intensity and the actually measured intensity, judging whether the electromagnetic radiation signal of the communication base station is abnormal or not according to whether the difference value is larger than a certain threshold or not, sending an early warning signal to the control center through the network only when the electromagnetic radiation signal is judged to be abnormal, and not transmitting the early warning signal to the control center when the electromagnetic radiation signal is judged to be normal, so that the occupation of network bandwidth is avoided, and the network load is reduced; meanwhile, the phenomenon that the data burden of the control center is too heavy due to the fact that real-time information is transmitted to the control center is avoided, and the radiation early warning efficiency of the communication base station is improved.
Description
Technical Field
The invention relates to the technical field of environmental electromagnetic radiation monitoring, in particular to a communication base station radiation early warning system.
Background
Electromagnetic radiation consists of spatially co-moving electrical and magnetic energy, which is generated by charge transfer. Weak electromagnetic fields exist in organs and tissues of a human body, the organs and the tissues are stable and ordered, and once the interference intensity of external electromagnetic radiation is overlarge, the weak electromagnetic fields in a balanced state are possibly influenced or even destroyed; in addition, if the influence on the human body is not reached before the self-recovery, the influence degree is accumulated if the human body is influenced by the excessive electromagnetic wave radiation for a long time, and a permanent accumulation influence is formed over time. In recent years, with the emphasis on the harm of electromagnetic radiation to human bodies, monitoring of electromagnetic radiation of a communication base station has become a problem of great concern.
A complete communication base station comprises radio transmitting/receiving equipment, antennas and signal processing parts specific to all radio interfaces. Each base station antenna generally has three sectors, each sector can transmit to a certain direction and cover a certain range, each sector has one to multiple antennas, and the antennas transmit signals on one hand and receive signals transmitted from a mobile phone on the other hand. The coverage area of the communication base station is related to the power of the transmitted signal, and in order to enable the mobile terminal within the coverage area to normally receive the signal transmitted by the communication base station, the power of the transmitted signal of the communication base station needs to be higher than a minimum power level. In fact, the transmitting power of the communication base station is related to the distance and distribution of mobile terminals around the communication base station, when the distance between a call subscriber and the base station is far, the base station automatically increases the transmitting power to meet the minimum decoding power required by the mobile terminal, the electromagnetic radiation intensity around the base station is increased, when the distance between the call subscriber and the base station is close, the base station automatically reduces the transmitting power, and the electromagnetic radiation intensity around the base station is reduced.
In the prior art, the electromagnetic radiation power density of a communication base station can be predicted through the above characteristics of the communication base station, wherein a relational expression between the transmission power of the communication base station and the distance of a mobile terminal is as follows: p t ＝KP r r 2 (ii) a In the formula, P t The power required to be transmitted for the base station communication is W; k is the antenna-related factor in dbm; r represents the distance between the mobile terminal and the communication base station in m. The expression when monitoring the electromagnetic radiation intensity of the communication base station is as follows: S-100P t G/(4πd 2 ) (ii) a In the formula, S represents a predicted value of electromagnetic radiation power density of a monitoring point of a communication base station; g is expressed as antenna gain in db; d is the distance between the base station and the monitoring point, and the unit is m; p t The power required to transmit for base station communications is in units of W. The prediction mode only provides a prediction model of the electromagnetic radiation power density generated by the communication base station in the use process, and the prediction model has reference significance only in the design stage of the communication base station, and the prediction model is not discovered in the prior art for monitoring the electromagnetic radiation.
Chinese patent 201010264317.8 discloses an electromagnetic radiation monitoring method, apparatus and system, which uses an electromagnetic radiation monitoring node to receive electromagnetic radiation signals of each frequency band near a base station and transmit the signals to a network side; and the network side receives electromagnetic radiation signals reported by all the electromagnetic radiation monitoring nodes in the whole network and judges whether the electromagnetic radiation of the electromagnetic radiation monitoring nodes monitoring the base station exceeds the standard or not. The electromagnetic radiation monitoring method is adopted, the monitored electromagnetic radiation signals are directly sent to the network side by using the radio frequency processing unit in the monitored base station, and the equipment in the base station is shared, so that the monitoring cost can be reduced, and the monitoring efficiency is improved.
In the actual monitoring implementation process, the electromagnetic radiation monitoring method disclosed in the above patent document (201010264317.8) needs to communicate with the network management platform through the network side in real time for a plurality of communication base stations in the area to be monitored, and although a specific transmission network is not adopted, the real-time transmission mode still occupies a large amount of communication bandwidth, and increases the burden of network transmission; meanwhile, all data are collected to a network management platform (control center) for analysis, and the complexity of data analysis of the network management platform is increased.
Disclosure of Invention
Therefore, the technical problem to be solved by the present invention is to overcome the technical defect of the prior art that the network side and the control center are overloaded during the real-time monitoring process of the communication base station, so as to provide a method and a system for radiation early warning of the communication base station.
The invention provides a communication base station radiation early warning method which is used for early warning a control center when a communication base station radiation signal is abnormal. The early warning method comprises the following steps:
acquiring the distance r between a mobile communication end and a communication base station;
calculating the predicted intensity S of the electromagnetic radiation signal required by the communication base station for realizing the normal communication of the mobile communication terminal at the monitoring point 0 ；
Obtaining the measured intensity S of the electromagnetic radiation signal of the monitoring point 1 ；
Calculating a difference value X between the predicted intensity of the electromagnetic radiation signal and the actually measured intensity of the electromagnetic radiation signal;
if the difference value X is larger than a certain threshold value, judging that an electromagnetic radiation signal is abnormal, and controlling the base station to transmit an early warning signal to the control center through a network;
and if the difference value X is not larger than a certain threshold value, judging that the electromagnetic radiation signal is normal, and not transmitting an early warning signal to the control center.
Further, in the step of calculating the predicted strength of the electromagnetic radiation signal required by the communication base station to realize normal communication of the mobile communication terminal, the predicted strength of the electromagnetic radiation signal is as follows:
S 0 ＝100P t G/(4πd 2 )；
in the formula, S 0 The method comprises the steps of representing the predicted strength of electromagnetic radiation signals of monitoring points of a communication base station, namely the predicted value of electromagnetic radiation power density; g is expressed as antenna gain in db; d is the distance between the base station and the monitoring point, and the unit is m; p t The power required to transmit for base station communications is in units of W.
Further, in the communication base station radiation early warning method, the power required to be transmitted by the base station communication is as follows:
P t ＝KP r r 2 ；
in the formula, P t The power required to be transmitted for the base station communication is W; k is the antenna-related factor in dbm; r represents the distance between the mobile terminal and the communication base station in m.
In the communication base station radiation early warning method, a difference between the predicted electromagnetic radiation signal intensity and the actually measured electromagnetic radiation signal intensity is as follows:
X＝|S 1 -S 0 |*100％/S 0 。
in the communication base station radiation early warning method, the threshold value is 5%.
The invention also provides a communication base station radiation early warning system, which applies the communication base station radiation early warning method of the invention to carry out early warning to a control center when the communication base station radiation signal is abnormal, and comprises,
a distance acquisition unit located within the communication base station,
an electromagnetic radiation intensity monitor, which is arranged at a monitoring point,
the communication base station controller is respectively in communication connection with the distance acquisition unit and the electromagnetic radiation intensity monitor so as to acquire the distance r between the mobile communication end and the communication base station and acquire the actual measurement intensity S1 of the electromagnetic radiation signal of the monitoring point;
the communication base station controller calculates the predicted intensity S0 of the electromagnetic radiation signal required by the communication base station for realizing the normal communication of the mobile communication terminal at the monitoring point, and calculates the difference X between the predicted intensity of the electromagnetic radiation signal and the actually measured intensity of the electromagnetic radiation signal;
if the difference value X is larger than a certain threshold value, the communication base station controller judges that an electromagnetic radiation signal is abnormal and controls the communication base station to transmit an early warning signal to the control center through the network;
and if the difference value X is not larger than a certain threshold value, the communication base station controller judges that the electromagnetic radiation signal is normal and does not transmit an early warning signal to the control center.
The technical scheme of the invention has the following advantages:
the invention provides a communication base station radiation early warning method and an early warning system.A distance between a mobile communication terminal and a communication base station is firstly obtained, and then the prediction strength of an electromagnetic radiation signal required by the communication base station for realizing normal communication of the mobile communication terminal at a monitoring point is calculated according to the distance value; acquiring the actually measured intensity of the electromagnetic radiation signal of the monitoring point; calculating the difference value between the predicted intensity of the electromagnetic radiation signal and the actually measured intensity of the electromagnetic radiation signal, judging whether the electromagnetic radiation signal of the communication base station is abnormal according to whether the difference value is greater than a certain threshold value, sending an early warning signal to a control center through a network only when the electromagnetic radiation signal is judged to be abnormal, and not transmitting the early warning signal to the control center when the electromagnetic radiation signal is judged to be normal, so that the occupation of network bandwidth is avoided, and the network load is reduced; meanwhile, the phenomenon that the data burden of the control center is too heavy due to the fact that real-time information is transmitted to the control center is avoided, and the radiation early warning efficiency of the communication base station is improved.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and other drawings can be obtained by those skilled in the art without creative efforts.
Fig. 1 is a flowchart of a specific example of a radiation early warning method for a communication base station in embodiment 1 of the present invention;
fig. 2 is a schematic block diagram of a specific example of a communication base station radiation early warning system in embodiment 2 of the present invention;
reference numerals: 1, a mobile communication terminal; 2-a communication base station; 2-1 communication base station controller; 2-2 radio frequency receiving unit; 2-3 monitoring instrument; 3 a control center.
Detailed Description
The technical solutions of the present invention will be described clearly and completely with reference to the accompanying drawings, and it should be understood that the described embodiments are some, but not all embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; the two elements may be directly connected or indirectly connected through an intermediate medium, or may be communicated with each other inside the two elements, or may be wirelessly connected or wired connected. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
In addition, the technical features involved in the different embodiments of the present invention described below may be combined with each other as long as they do not conflict with each other.
Example 1
The embodiment provides a communication base station radiation early warning method, which is used for early warning a control center when a communication base station radiation signal is abnormal. As shown in fig. 1, the method comprises the following steps:
the controller of the communication base station acquires the distance r between the mobile communication end and the communication base station through the radio frequency receiving unit;
and the controller of the communication base station calculates the monitoring point by operation, and the communication base station realizes the monitoring pointElectromagnetic radiation signal prediction strength S required by normal communication of mobile communication terminal 0 ；
The monitoring point is a position of an electromagnetic radiation intensity monitor which is arranged near the base station for monitoring the electromagnetic radiation intensity of the communication base station;
the prediction strength of the electromagnetic radiation signal required by the communication base station for realizing the normal communication of the mobile communication terminal is as follows:
S 0 ＝100P t G/(4πd 2 )；
in the formula, S 0 The method comprises the steps of representing the predicted strength of electromagnetic radiation signals of monitoring points of a communication base station, namely the predicted value of electromagnetic radiation power density; g is expressed as antenna gain in db; d is the distance between the base station and the monitoring point, and the unit is m; p t The power required to be transmitted for the base station communication is W;
wherein, the base station communication needs the transmitted power P t Comprises the following steps:
P t ＝KP r r 2 ；
in the formula, P t The power required to be transmitted for the base station communication is W; k is the antenna-related factor in dbm; r represents the distance between the mobile terminal and the communication base station, and the unit is m;
actually measured intensity S of electromagnetic radiation signal of monitoring point 1 ；
Calculating a difference value X between the predicted intensity of the electromagnetic radiation signal and the actually measured intensity of the electromagnetic radiation signal; the difference is:
X＝|S 1 -S 0 |*100％/S 0 ；
if the difference value X is larger than a certain threshold value, the threshold value can be selected to be 5%, the controller judges that the electromagnetic radiation signal is abnormal, generates an early warning signal and controls the base station to transmit the early warning signal to the control center through a network;
and if the difference value X is not greater than 5% of the threshold value, the controller judges that the electromagnetic radiation signal is normal and does not transmit an early warning signal to the control center.
The communication base station radiation early warning method provided by the embodiment comprises the steps of firstly obtaining the distance between a mobile communication end and a communication base station, and then calculating the prediction intensity of an electromagnetic radiation signal required by the communication base station for realizing normal communication of the mobile communication end at a monitoring point according to the distance value; acquiring the actually measured intensity of the electromagnetic radiation signal of the monitoring point; calculating the difference value between the predicted intensity of the electromagnetic radiation signal and the actually measured intensity of the electromagnetic radiation signal, judging whether the electromagnetic radiation signal of the communication base station is abnormal according to whether the difference value is greater than a certain threshold value, sending an early warning signal to a control center through a network only when the electromagnetic radiation signal is judged to be abnormal, and not transmitting the early warning signal to the control center when the electromagnetic radiation signal is judged to be normal, so that the occupation of network bandwidth is avoided, and the network load is reduced; meanwhile, the phenomenon that the data burden of the control center is too heavy due to the fact that real-time information is transmitted to the control center is avoided, and the radiation early warning efficiency of the communication base station is improved.
Example 2
The embodiment provides a communication base station radiation early warning system, which is used for early warning to a control center when a communication base station radiation signal is abnormal, as shown in fig. 2, the communication base station radiation early warning system comprises,
a distance obtaining unit, which can be selected as a radio frequency receiving unit 2-2, is positioned in the communication base station 2 and is used for receiving radio frequency signals to obtain the distance between the mobile communication terminal and the communication base station;
the electromagnetic radiation intensity monitor 2-3 is arranged at a monitoring point, and the monitoring point refers to a position of the electromagnetic radiation intensity monitor near the base station for monitoring the electromagnetic radiation intensity of the communication base station;
a communication base station controller 2-1 which is respectively connected with the radio frequency receiving unit 2-2 and the electromagnetic radiation intensity monitor 2-3 in a communication way so as to obtain the distance r between the mobile communication terminal 1 and the communication base station and obtain the actually measured intensity S of the electromagnetic radiation signal of the monitoring point 1 ；
The communication base station controller 2-1 calculates the predicted strength S of the electromagnetic radiation signal required by the communication base station 2 for realizing the normal communication of the mobile communication terminal 1 at the monitoring point 0 Calculating the difference value X between the predicted intensity of the electromagnetic radiation signal and the actually measured intensity of the electromagnetic radiation signal;
if the difference value X is greater than a certain threshold value, the threshold value may be selected to be 5%, the communication base station controller 2-1 determines that the electromagnetic radiation signal is abnormal, and the controller 2-1 generates an early warning signal and controls the communication base station 2 to transmit the early warning signal to the control center 3 through a network;
and if the difference value X is not greater than 5% of the threshold value, the controller judges that the electromagnetic radiation signal is normal and does not transmit an early warning signal to the control center.
The communication base station radiation early warning system provided by this embodiment first obtains the distance between the mobile communication terminal 1 and the communication base station 2, and then calculates the electromagnetic radiation signal prediction strength required by the communication base station 2 to realize normal communication of the mobile communication terminal 1 at the monitoring point according to the distance value; acquiring the actually measured intensity of the electromagnetic radiation signal of the monitoring point; calculating the difference value between the predicted intensity of the electromagnetic radiation signal and the actually measured intensity of the electromagnetic radiation signal, judging whether the electromagnetic radiation signal of the communication base station 2 is abnormal according to whether the difference value is greater than a certain threshold value, sending an early warning signal to the control center 3 through the network only when the electromagnetic radiation signal is judged to be abnormal, and not transmitting the early warning signal to the control center 3 when the electromagnetic radiation signal is judged to be normal, so that the occupation of network bandwidth is avoided, and the network load is reduced; meanwhile, the phenomenon that the data burden of the control center is too heavy due to the fact that real-time information is transmitted to the control center is avoided, and the radiation early warning efficiency of the communication base station is improved.
When the control center 3 receives the early warning signal, the control center can check the operation state of the communication base station 2 to check whether the communication base station has a fault, if necessary, the communication base station can be checked on site to determine the actual operation state of the base station, and the actual operation state is fed back to the controller of the communication base station through the control center to complete the whole early warning and fault processing process.
It should be understood that the above examples are only for clarity of illustration and are not intended to limit the embodiments. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. And obvious variations or modifications therefrom are within the scope of the invention.
Claims (1)
1. A communication base station radiation early warning system is characterized in that the following early warning method is adopted to carry out early warning to a control center when a communication base station radiation signal is abnormal:
acquiring the distance r between a mobile communication end and a communication base station;
calculating the predicted intensity S of the electromagnetic radiation signal required by the communication base station for realizing the normal communication of the mobile communication terminal at the monitoring point 0 ；
Obtaining the measured intensity S of the electromagnetic radiation signal of the monitoring point 1 ；
Calculating a difference value X between the predicted intensity of the electromagnetic radiation signal and the actually measured intensity of the electromagnetic radiation signal; the difference between the predicted intensity of the electromagnetic radiation signal and the measured intensity of the electromagnetic radiation signal is X ═ S 1 -S 0 |*100％/S 0 ；
If the difference value X is larger than a certain threshold value, judging that an electromagnetic radiation signal is abnormal, and controlling the base station to transmit an early warning signal to the control center through a network;
if the difference value X is not larger than a certain threshold value, judging that the electromagnetic radiation signal is normal, and not transmitting an early warning signal to the control center; wherein the threshold is 5%;
in the step of calculating the predicted strength of the electromagnetic radiation signal required by the communication base station for realizing the normal communication of the mobile communication terminal,
predicted intensity of electromagnetic radiation signal is S 0 ＝100P t G/(4πd 2 )；
In the formula, S 0 The method comprises the steps of representing the predicted strength of electromagnetic radiation signals of monitoring points of a communication base station, namely the predicted value of electromagnetic radiation power density; g is expressed as antenna gain in db; d is the distance between the base station and the monitoring point, and the unit is m; p t The power required to be transmitted for the base station communication is W;
wherein, the base station communication needs the transmitted power P t ＝KP r r 2 ；
In the formula, P t The power required to be transmitted for the base station communication is W; k is the antenna-related factor in dbm; r represents the distance between the mobile terminal and the communication base station, and the unit is m;
the communication base station early warning system comprises a communication base station early warning device,
the distance acquisition unit is positioned in the communication base station, and is a radio frequency receiving unit used for receiving radio frequency signals so as to acquire the distance between the mobile communication terminal and the communication base station;
an electromagnetic radiation intensity monitor, which is arranged at a monitoring point,
a communication base station controller which is respectively in communication connection with the distance acquisition unit and the electromagnetic radiation intensity monitor to acquire the distance r between the mobile communication end and the communication base station and acquire the actual measurement intensity S of the electromagnetic radiation signal of the monitoring point 1 ；
The communication base station controller calculates the predicted strength S of the electromagnetic radiation signal required by the communication base station for realizing the normal communication of the mobile communication terminal at the monitoring point 0 Calculating the difference value X between the predicted intensity of the electromagnetic radiation signal and the actually measured intensity of the electromagnetic radiation signal;
if the difference value X is larger than a certain threshold value, the communication base station controller judges that an electromagnetic radiation signal is abnormal and controls the communication base station to transmit an early warning signal to the control center through the network;
if the difference value X is not larger than a certain threshold value, the communication base station controller judges that the electromagnetic radiation signal is normal and does not transmit an early warning signal to the control center;
and when the control center receives the early warning signal, checking the running state of the communication base station through the control center, and checking whether the communication base station fails.
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| CN101656969B (en) * | 2008-08-21 | 2013-01-23 | 中国移动通信集团公司 | Radiation warning method, device and system |
| MX2012003493A (en) * | 2009-09-24 | 2012-07-20 | Wave Guard Technologies Ltd | A system and method of online radiation management and control of non-ionizing radiation sources. |
| CN103516442A (en) * | 2012-06-19 | 2014-01-15 | 华为技术有限公司 | Method for evaluating security of electromagnetic radiation and mobile terminal |
| CN102761898B (en) * | 2012-07-19 | 2015-11-25 | 华为技术有限公司 | Radiation power detection, system and equipment |
| CN103634061B (en) * | 2013-11-13 | 2015-08-26 | 南京捷希科技有限公司 | Electromagnetic radiation monitoring system |
| CN105025512B (en) * | 2014-04-30 | 2019-04-30 | 中国电信股份有限公司 | Base station antenna feeder monitoring method and device |
| CN106879016B (en) * | 2017-03-28 | 2019-11-29 | 湘潭大学 | A kind of base station electromagnetic radiation prediction technique based on user distribution |
| CN106680599A (en) * | 2017-03-28 | 2017-05-17 | 上海市共进通信技术有限公司 | Electromagnetic radiation monitoring alarm management system based on cloud service platform and method thereof |
| CN109818694B (en) * | 2019-03-01 | 2021-07-06 | 成都中星世通电子科技有限公司 | Electromagnetic spectrum monitoring system based on wireless ad hoc network |
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| US5610394A (en) * | 1996-04-29 | 1997-03-11 | Itron, Inc. | Rotation monitor disturbance neutralization system |
| CN107449973A (en) * | 2017-08-14 | 2017-12-08 | 青岛海信移动通信技术股份有限公司 | A kind of terminal detection method of electromagnetic radiation, device and terminal |
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