CN115097215A

CN115097215A - Radiation evaluation method and device, electronic equipment and storage medium

Info

Publication number: CN115097215A
Application number: CN202210680594.XA
Authority: CN
Inventors: 杭一帆; 吕威; 陈强; 牛年增
Original assignee: China United Network Communications Group Co Ltd; China Information Technology Designing and Consulting Institute Co Ltd
Current assignee: China United Network Communications Group Co Ltd; China Information Technology Designing and Consulting Institute Co Ltd
Priority date: 2022-06-16
Filing date: 2022-06-16
Publication date: 2022-09-23

Abstract

The application discloses a radiation evaluation method, a radiation evaluation device, electronic equipment and a storage medium, relates to the field of communication, and aims to solve the problem of how to perform security evaluation on electromagnetic radiation caused by a base station, and comprises the following steps: determining a radio frequency electric field model of a base station; the radio frequency electric field model is used for representing the radio frequency electric field intensity of the base station in different frequency bands within the coverage range of the base station; determining a plurality of safety limits; each safety limit value corresponds to each frequency band of the base station one by one; determining the radio frequency electric field safety ranges of the base station under different frequency bands according to the radio frequency electric field model of the base station and a plurality of safety limit values; and judging whether the equipment to be evaluated is positioned in the safety range of the radio frequency electric field or not, and determining an evaluation result. The method and the device are used for radiation safety assessment of the equipment within the electromagnetic radiation influence range of the base station.

Description

Radiation evaluation method and device, electronic equipment and storage medium

Technical Field

The present application relates to the field of communications, and in particular, to a radiation evaluation method and apparatus, an electronic device, and a storage medium.

Background

In the present phase, a fifth generation mobile communication technology (5G) base station is built gradually in the substation. In the transformer substation, the 5G base station can cause electromagnetic radiation influence on the internal equipment of the transformer substation. And the internal equipment of the transformer substation, especially the relay protection equipment, is related to the safety of the whole transformer substation. Therefore, the safety evaluation of the electromagnetic radiation of the 5G base station is an important part in the construction of the base station.

The signals sent by the 5G base station have the characteristic of beam forming, and the transmitting power of the base station antenna is higher, so that the electromagnetic radiation generated by the 5G base station is higher. At present, the research content for 5G base station electromagnetic radiation mainly focuses on the influence on human body, and does not consider the influence of 5G base station electromagnetic radiation on electronic equipment near the base station.

Disclosure of Invention

The application provides a radiation evaluation method, a radiation evaluation device, electronic equipment and a storage medium, which can solve the problem of how to perform security evaluation on electromagnetic radiation caused by a base station.

In order to achieve the purpose, the following technical scheme is adopted in the application:

in a first aspect, the present application provides a radiation evaluation method, comprising: determining a radio frequency electric field model of a base station; the radio frequency electric field model is used for representing the radio frequency electric field intensity of the base station in different frequency bands within the coverage range of the base station; determining a plurality of safety limits; each safety limit value corresponds to each frequency band of the base station one by one; determining the radio frequency electric field safety ranges of the base station under different frequency bands according to the radio frequency electric field model of the base station and a plurality of safety limit values; and judging whether the equipment to be evaluated is positioned in the safety range of the radio frequency electric field or not, and determining an evaluation result.

Based on the technical scheme, the safety range of the radio frequency electric field with the radio frequency electric field intensity smaller than the corresponding safety limit value in the radio frequency electric field model is determined by pre-establishing the radio frequency electric field model of the base station and the safety limit values of the radio frequency electric fields arranged under different frequency bands, and then whether the equipment to be evaluated is located in the safety range of the radio frequency electric field is judged according to the coordinate information of the equipment to be evaluated, so that the safety evaluation result of the equipment to be evaluated is obtained. Therefore, safety assessment of the equipment within the electromagnetic radiation influence range of the base station is achieved, and a guiding effect can be achieved when workers conduct electromagnetic protection operation on the equipment.

In a possible implementation manner, the determining a radio frequency electric field model of a base station specifically includes: determining characteristic information of a base station; the characteristic information of the base station comprises one or more of the following items: the transmitting power of the base station, the downward inclination angle of the antenna, the type of the antenna, the erection mode, the hanging height of the base station and the range of frequency bands; constructing a three-dimensional rectangular coordinate system, and determining a coverage model of the base station in the three-dimensional rectangular coordinate system according to the characteristic information of the base station; acquiring radio frequency electric field intensities of a plurality of target coordinate points under different frequency bands and antenna downward inclination angles corresponding to the target coordinate points according to a coverage range model of a base station; and determining a radio frequency electric field model of the base station according to the radio frequency electric field intensity of the target coordinate points under different frequency bands and the antenna downward inclination angles corresponding to the target coordinate points.

In a possible implementation manner, the determining, according to the radio frequency electric field model of the base station and the multiple safety limits, the safety range of the radio frequency electric field of the base station in different frequency bands specifically includes: for each frequency band, determining a plurality of safety coordinate points according to a radio frequency electric field model of the base station; the safe coordinate point is a coordinate point of which the radio frequency electric field intensity corresponding to the frequency band is less than or equal to the safe limit value corresponding to the frequency band in the target coordinate points; and determining the radio frequency electric field safety range of the base station under different frequency bands according to the plurality of safety coordinate points.

In a possible implementation manner, the determining whether the device to be evaluated is located within the safety range of the radio frequency electric field specifically includes: determining the position information of the equipment to be evaluated and the frequency band corresponding to the equipment to be evaluated; determining an antenna downward inclination angle corresponding to the equipment to be evaluated according to the position information of the equipment to be evaluated; determining coordinate information of the equipment to be evaluated in a three-dimensional rectangular coordinate system according to the position information of the equipment to be evaluated; and judging whether the equipment to be evaluated is positioned in the safety range of the radio frequency electric field or not according to the coordinate information of the equipment to be evaluated, the frequency band corresponding to the equipment to be evaluated and the downward inclination angle of the antenna corresponding to the equipment to be evaluated.

In a possible implementation manner, the determining the evaluation result includes: if the equipment to be evaluated is located in the safety range of the radio frequency electric field, determining the safety of the equipment to be evaluated as an evaluation result; and if the equipment to be evaluated is positioned outside the safety range of the radio frequency electric field, determining that the evaluation result is that the equipment to be evaluated is unsafe.

In a second aspect, the present application provides a radiation evaluation device comprising: a processing unit; a processing unit for determining a radio frequency electric field model of the base station; the radio frequency electric field model is used for representing the radio frequency electric field intensity of the base station in different frequency bands within the coverage range of the base station; a processing unit further configured to determine a plurality of safety limits; each safety limit value corresponds to each frequency band of the base station one by one; the processing unit is also used for determining the radio frequency electric field safety ranges of the base station under different frequency bands according to the radio frequency electric field model of the base station and the plurality of safety limit values; and the processing unit is also used for judging whether the equipment to be evaluated is positioned in the safety range of the radio frequency electric field and determining the evaluation result.

In one possible implementation, the radiation evaluation apparatus further includes: an acquisition unit; an obtaining unit, configured to obtain feature information of a base station; the characteristic information of the base station comprises one or more of the following items: the transmitting power of the base station, the downward inclination angle of the antenna, the type of the antenna, the erection mode, the hanging height of the base station and the range of frequency bands; the processing unit is also used for constructing a three-dimensional rectangular coordinate system and determining a coverage area model of the base station in the three-dimensional rectangular coordinate system according to the characteristic information of the base station; the processing unit is further used for acquiring radio frequency electric field intensity of the plurality of target coordinate points under different frequency bands and antenna downward inclination angles corresponding to the plurality of target coordinate points according to the coverage range model of the base station; and the processing unit is also used for determining a radio frequency electric field model of the base station according to the radio frequency electric field intensity of the plurality of target coordinate points under different frequency bands and the antenna downward inclination angles corresponding to the plurality of target coordinate points.

In a possible implementation manner, the processing unit is further configured to determine, for each frequency band, a plurality of safety coordinate points according to a radio frequency electric field model of the base station; the safe coordinate point is a coordinate point of which the radio frequency electric field intensity corresponding to the frequency band is less than or equal to the safe limit value corresponding to the frequency band in the target coordinate points; and the processing unit is also used for determining the radio frequency electric field safety range of the base station under different frequency bands according to the plurality of safety coordinate points.

In a possible implementation manner, the obtaining unit is further configured to obtain location information of the device to be evaluated and a frequency band corresponding to the device to be evaluated; the processing unit is also used for determining the antenna downward inclination angle corresponding to the equipment to be evaluated according to the position information of the equipment to be evaluated; the processing unit is also used for determining the coordinate information of the equipment to be evaluated in the three-dimensional rectangular coordinate system according to the position information of the equipment to be evaluated; and the processing unit is further used for judging whether the equipment to be evaluated is positioned in the radio frequency electric field safety range according to the coordinate information of the equipment to be evaluated, the frequency band corresponding to the equipment to be evaluated and the antenna downward inclination angle corresponding to the equipment to be evaluated.

In a possible implementation manner, the processing unit is further configured to determine that the evaluation result is the safety of the device to be evaluated when the device to be evaluated is located within the safety range of the radio frequency electric field; and the processing unit is also used for determining that the evaluation result is that the equipment to be evaluated is unsafe when the equipment to be evaluated is positioned outside the safety range of the radio frequency electric field.

In addition, for technical effects of the radiation evaluation apparatus of the second aspect, reference may be made to technical effects of the radiation evaluation method of the first aspect, which are not described herein again.

In a third aspect, the present application provides a computer readable storage medium storing one or more programs, the one or more programs comprising instructions, which when executed by an electronic device of the present application, cause the electronic device to perform the radiation evaluation method as described in the first aspect and any one of the possible implementations of the first aspect.

In a fourth aspect, the present application provides an electronic device comprising: a processor and a memory; wherein the memory is used for storing one or more programs, the one or more programs comprising computer executable instructions, which when executed by the processor cause the electronic device to perform the radiation evaluation method as described in the first aspect and any one of the possible implementations of the first aspect.

In a fifth aspect, the present application provides a computer program product containing instructions that, when run on a computer, cause the electronic device of the present application to perform the radiation evaluation method as described in the first aspect and any one of the possible implementations of the first aspect.

In a sixth aspect, the present application provides a chip system, which is applied to a radiation evaluation apparatus; the system-on-chip includes one or more interface circuits, and one or more processors. The interface circuit and the processor are interconnected through a line; the interface circuit is to receive a signal from a memory of the radiation evaluation device and to send the signal to the processor, the signal including computer instructions stored in the memory. When the processor executes the computer instructions, the radiation evaluation apparatus performs the radiation evaluation method according to the first aspect and any one of its possible designs.

In the present application, the names of the above-mentioned radiation evaluation devices do not limit the devices or functional units themselves, which may appear by other names in practical implementations. Insofar as the function of each device or functional unit is similar to that of the present application, it falls within the scope of the claims of the present application and their equivalents.

Drawings

Fig. 1 is a schematic view of an application scenario of a radiation evaluation method according to an embodiment of the present application;

fig. 2 is a schematic flowchart of a radiation evaluation method according to an embodiment of the present disclosure;

FIG. 3 is a schematic flow chart of another radiation evaluation method provided in the embodiments of the present application;

fig. 4 is a schematic diagram illustrating a test result of rf field strength according to an embodiment of the present disclosure;

FIG. 5 is a schematic flow chart of another radiation evaluation method provided in the embodiments of the present application;

fig. 6 is a schematic structural diagram of a radiation evaluation apparatus according to an embodiment of the present application;

fig. 7 is a schematic structural diagram of another radiation evaluation apparatus according to an embodiment of the present application.

Detailed Description

The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only some embodiments of the present application, and not all embodiments. 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 application.

The character "/" herein generally indicates that the former and latter associated objects are in an "or" relationship. For example, A/B may be understood as A or B.

The terms "first" and "second" in the description and claims of the present application are used to distinguish different objects, rather than to describe a particular order of objects. For example, the first edge service node and the second edge service node are used for distinguishing different edge service nodes, rather than describing the characteristic order of the edge service nodes.

Furthermore, the terms "including" and "having," and any variations thereof, as referred to in the description of the present application, are intended to cover non-exclusive inclusions. For example, a process, method, system, article, or apparatus that comprises a list of steps or elements is not limited to only those steps or elements but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.

In addition, in the embodiments of the present application, words such as "exemplarily" or "for example" are used for indicating as examples, illustrations or explanations. Any embodiment or design described herein as "exemplary" or "e.g.," is not necessarily to be construed as preferred or advantageous over other embodiments or designs. Rather, use of the word "exemplary" or "such as" is intended to present concepts in a concrete fashion.

The intelligent upgrading and transformation of the power station at the present stage needs to build a corresponding 5G special network, and due to the characteristics of high speed, high capacity, low time delay and high reliability of the 5G, the reliable, efficient, economic and stable operation of the power grid can be better guaranteed. At present, 5G base stations are built gradually in a transformer substation, and in the transformer substation, the 5G base stations can cause electromagnetic radiation influence on internal equipment of the transformer substation. And the internal equipment of the transformer substation, especially the relay protection equipment, is related to the safety of the whole transformer substation. Therefore, the safety evaluation of the electromagnetic radiation of the 5G base station is an important ring in the construction of the base station.

The signals sent by the 5G base station have the characteristic of beam forming, and the transmitting power of the base station antenna is higher, so that the electromagnetic radiation generated by the 5G base station is higher. At present, the research on electromagnetic radiation of a 5G base station mainly focuses on the influence on a human body, and the influence of the electromagnetic radiation of the 5G base station on electronic equipment near the base station is not considered, so that the radio frequency interference emitted by the 5G equipment is easy to occur, and the normal work of the relay protection equipment is influenced. Therefore, when a 5G base station is built in a substation, a method for evaluating the safety of equipment within the electromagnetic radiation influence range of the 5G base station is needed.

Exemplarily, a method for monitoring an electromagnetic radiation environment of a 5G mobile communication base station is provided in the prior art, and includes: during measurement, points are distributed on the ground in the main lobe direction of the antenna, business operation is carried out through a 5G mobile phone, and a frequency selector is used for grabbing a spectrogram for 6 minutes. Analysis shows that the comprehensive field intensity value of the 5G base station in the frequency band obtained by the method cannot be applied to the evaluation of the relay protection equipment because the electromagnetic compatibility of the relay protection equipment is evaluated by the field intensity at a single frequency point, rather than the comprehensive field intensity of the whole frequency band. In addition, the main research object in the method is a human body, and the safety evaluation is not carried out on the equipment in the influence range of the electromagnetic radiation of the base station.

At present, for relay protection equipment in a substation, the evaluation standard is the electromagnetic compatibility requirement (IEC60255-26) of a relay and a protection device, however, the frequency range required in the standard is within 1GHz, the electromagnetic compatibility characteristic of the relay protection equipment in the substation is generally required to be 3-level (10V/m, 80 MHz-1 GHz, modulation frequency 1kHz, 80%) with respect to a radio frequency electromagnetic field radiation immunity test, while the frequency band of a 5G base station of three operators is 3.4G-3.6GHz, and no corresponding research method and limit exist, so that a method for performing safety evaluation on equipment in the electromagnetic radiation influence range of the base station is urgently needed.

In order to solve the problem of how to perform security assessment on equipment within the influence range of electromagnetic radiation of a base station at the present stage, the application provides a radiation assessment method.

Exemplarily, as shown in fig. 1, a schematic view of an application scenario of a radiation evaluation method provided by the present application is shown. The application scenario includes a base station 11, a device to be evaluated 12, and a test terminal 13.

The base station 11 is a 5G base station arranged inside a substation. The frequency band of the base station 11 is typically 3.4GHz-3.6 GHz. The frequency band of the base station 11 is tested in the present application, illustratively in the range of 2000MHz to 5000 MHz. In addition, in the present application, the intensity of electromagnetic radiation in a spatial region near the base station 11 is quantified by measuring the intensity of radio frequency electric field in the vicinity of the base station 11.

The device to be evaluated 12 is a device inside the substation, for example, a relay protection device of the substation. The equipment 12 to be evaluated is used as equipment inside the transformer substation, and after the 5G base station is arranged inside the transformer substation, the equipment 12 to be evaluated is influenced by electromagnetic radiation of the 5G base station.

And the test terminal 13 is configured to test radio frequency electric field intensities of a plurality of coordinate points within a coverage range of the base station 11, so as to quantify the electromagnetic radiation intensity of a spatial region near the base station 11. Illustratively, the test terminal 13 is in a high-speed download state, so that the peak rf electric field strength of the base station 11 at the current position can be tested. Correspondingly, the radiation evaluation method realizes the safety evaluation of the equipment 12 to be evaluated under the influence of electromagnetic radiation based on the peak radio frequency electric field intensity in the coverage space range of the base station 11.

It is to be noted that, in the radiation evaluation method provided in the present application, the execution subject is a radiation evaluation apparatus. The radiation evaluation device can be an electronic device (such as a computer terminal and a server), a processor in the electronic device, a control module for radiation evaluation in the electronic device, and a client for radiation evaluation in the electronic device.

The following describes a flow of the radiation evaluation method provided in this embodiment.

Exemplarily, as shown in fig. 2, the present application provides a radiation evaluation method, which specifically includes the following steps S201 to S204:

s201, the radiation evaluation device determines a radio frequency electric field model of the base station.

The radio frequency electric field model of the base station is used for representing the radio frequency electric field strength of the base station in different frequency bands within the coverage range of the base station.

Alternatively, the base station may be a 5G base station. And the frequency range of the frequency bands included in the different frequency bands is 2000MHz-5000 MHz.

In one possible implementation manner, the radiation evaluation device obtains information of the base station and constructs a three-dimensional rectangular coordinate system, so as to determine a coverage area model of the base station, wherein the coverage area model is a three-dimensional space model. And then, the radiation evaluation device measures the radio frequency electric field intensity in the space range covered by the base station according to a certain space distance interval to obtain a measured value, the measured value is marked into a coverage range model, and finally the radio frequency electric field model of the base station is determined.

It should be noted that, the specific process of determining the radio frequency electric field model of the base station by the radiation evaluation apparatus is referred to in S301 to S304, and is not described herein again.

S202, the radiation evaluation device determines a plurality of safety limits.

Each of the plurality of safety limit values corresponds to each of the frequency bands included in the different frequency bands of the base station in S201. That is, the base station has several frequency bands, and the radiation evaluation device correspondingly sets a corresponding number of safety limit values, so as to ensure that each frequency band of the base station has a corresponding safety limit value.

For example, table 1 below shows safety limits corresponding to each frequency band when the base station has 3 different frequency bands.

TABLE 1 frequency band and safety limit value correspondence table

In Table 1, the safety limit value corresponding to the frequency band of 2000MHz to 3000MHz is 5V/m, the safety limit value corresponding to the frequency band of 3000MHz to 4000MHz is 10V/m, and the safety limit value corresponding to the frequency band of 4000MHz to 5000MHz is 20V/m. It should be noted that table 1 is only one possible setting manner of the safety limit in this embodiment, and does not constitute a specific limitation to the technical solution of the present application.

S203, the radiation evaluation device determines the radio frequency electric field safety ranges of the base station under different frequency bands according to the radio frequency electric field model of the base station and a plurality of safety limit values.

Optionally, the radiation evaluation device determines, for each frequency band of the base station, regions where the radio-frequency electric field strength is less than or equal to the safety limit corresponding to the frequency band according to the radio-frequency electric field model of the base station, and determines a range set of the regions as the radio-frequency electric field safety range of the frequency band. After the radio frequency electric field safety range is determined for each frequency band, the radiation evaluation device can obtain the radio frequency electric field safety ranges of the base station under different frequency bands.

It should be noted that, for the process of determining the radio frequency electric field safety range of the base station in different frequency bands by the specific radiation evaluation device according to the multiple safety limit values, see S501-S502 below, and details are not repeated here.

S204, the radiation evaluation device judges whether the equipment to be evaluated is located in the safety range of the radio frequency electric field, and determines an evaluation result.

Optionally, the radiation evaluation device obtains the position information of the device to be evaluated and a frequency band corresponding to the device to be evaluated. For example, the location information of the device to be evaluated may be latitude and longitude information of the device to be evaluated.

It can be understood that the radiation evaluation apparatus determines the frequency band corresponding to the device to be evaluated according to the operator corresponding to the base station. Exemplarily, if the base station is used by an operator, the frequency band corresponding to the device to be evaluated is the frequency band used by the operator; if the base station is used by multiple operators, the frequency bands corresponding to the devices to be evaluated are the multiple frequency bands used by the operators.

Optionally, the radiation evaluation device determines, according to the position information of the device to be evaluated, coordinate information of the device to be evaluated in the three-dimensional rectangular coordinate system and an antenna downtilt angle corresponding to the device to be evaluated.

And then, the radiation evaluation device judges whether the equipment to be evaluated is positioned in the safety range of the radio frequency electric field or not by combining a radio frequency electric field model of the base station according to the coordinate information of the equipment to be evaluated in the three-dimensional rectangular coordinate system, the frequency band corresponding to the equipment to be evaluated and the antenna downward inclination angle corresponding to the equipment to be evaluated.

Optionally, the evaluation result includes the device to be evaluated is safe and the device to be evaluated is unsafe. It can be understood that if the device to be evaluated is located within the safety range of the radio frequency electric field, the evaluation result is determined to be the safety of the device to be evaluated; optionally, if the device to be evaluated is located outside the radio frequency electric field safety range, determining that the evaluation result is that the device to be evaluated is unsafe.

Based on the technical scheme, the embodiment of the application establishes the radio frequency electric field model of the base station in advance, and sets the safety limit values of the radio frequency electric field under different frequency bands, so as to determine the radio frequency electric field safety range of the radio frequency electric field model, wherein the radio frequency electric field intensity is smaller than or equal to the corresponding safety limit value, and then judges whether the equipment to be evaluated is located in the radio frequency electric field safety range according to the coordinate information of the equipment to be evaluated, so as to obtain the safety evaluation result of the equipment to be evaluated. Therefore, safety assessment of the equipment within the electromagnetic radiation influence range of the base station is achieved, and a guiding effect can be achieved when workers conduct electromagnetic protection operation on the equipment.

Exemplarily, referring to fig. 2 and as shown in fig. 3, in the radiation evaluation method provided by the present application, determining a radio frequency electric field model of a base station specifically includes the following steps S301 to S304:

s301, the radiation evaluation device determines and acquires the characteristic information of the base station.

The characteristic information of the base station comprises one or more of the following items: the transmission power of the base station, the antenna downtilt angle, the antenna type, the erection mode, the base station hang-up and the frequency band range.

It should be noted that, in the present phase, since there is a case where a 5G base station is shared by multiple operators, the frequency range of the base station is determined by the operator using the base station in the present application.

It can be understood that the transmission power, the antenna downtilt angle, the antenna type, the erection mode, and the base station overhead of the base station are inherent attributes of the base station, and the acquisition method is a mature prior art in the field and is not described herein again. The erection of the base station and the type of antenna affect the z-axis coordinate of the base station. Specifically, the antenna hung on the base station is taken as the origin of coordinates, the coordinate height of the z-axis is the height of the bottom of the base station plus the height of the antenna hung (the height of the antenna hung is determined by the type of the antenna and the erection mode of the base station), when the erection mode of the base station is a roof heightening frame, the height of the bottom of the base station is the height of the ceiling of the placed building, and when the erection mode is a steel pipe tower, the height of the bottom of the base station is the ground height.

S302, the radiation evaluation device constructs a three-dimensional rectangular coordinate system, and determines a coverage range model of the base station in the three-dimensional rectangular coordinate system according to the characteristic information of the base station.

Optionally, the radiation evaluation device constructs a three-dimensional rectangular coordinate system with the base station as an origin.

Illustratively, after the radiation evaluation device constructs the three-dimensional rectangular coordinate system, the coverage area model of the base station in the three-dimensional rectangular coordinate system is determined by taking 50 meters as a radius and combining the downward inclination angle of the antenna of the base station, the type of the antenna, the erection mode and the hanging height of the base station.

Optionally, after determining the coverage model of the base station, the radiation evaluation device selects a plurality of target coordinate points in the coverage model according to a preset spatial interval. The preset space interval may be determined according to actual conditions, and the embodiment is not particularly limited.

It can be understood that the radiation evaluation device selects a plurality of target coordinate points in the coverage model of the base station, in order to specifically measure the radio frequency electric field intensity in the coverage of the base station, so as to quantitatively represent the electromagnetic radiation intensity in the coverage of the base station.

S303, the radiation evaluation device obtains radio frequency electric field intensity of a plurality of target coordinate points under different frequency bands and antenna downward inclination angles corresponding to the target coordinate points according to the coverage range model of the base station.

Optionally, for each target coordinate point, the radiation evaluation device places the test terminal on the target coordinate point, and places the test terminal in a high-speed downloading state; meanwhile, the radiation evaluation device measures the frequency point of the target coordinate point and the radio frequency electric field intensity through the frequency selector.

It should be noted that, measuring the frequency point of one coordinate point and the radio frequency electric field intensity according to the test terminal and the frequency selector is a mature prior art in the field, and this embodiment is not described herein again.

It should be understood that if a base station has different frequency bands, that is, the base station is shared by multiple operators, the test terminal in this step performs measurement of radio frequency electric field strengths of different frequency bands by replacing the mobile phone card of the operator.

Therefore, the radiation evaluation device can acquire the radio frequency electric field intensity of a plurality of target coordinate points under different frequency bands.

It can be understood that the radiation evaluation device can determine the antenna downward inclination angle corresponding to the target coordinate point according to the relative position of the target coordinate point and the base station.

Exemplarily, as shown in fig. 4, a frequency selector with a narda-SRM3006 model is selected, in the figure, the frequency bands measured by the frequency selector are 3400MHZ-3500MHZ of a unicom operator and 3500MHZ-3600MHZ of a telecom operator, the test terminal is a 5G intelligent terminal, and the mobile phone is in a high-speed downloading mode during measurement. As shown in FIG. 4, it can be seen that the frequency point at point A is 3524.369MHz, and the corresponding RF field strength is 1.222V/m.

S304, the radiation evaluation device determines a radio frequency electric field model of the base station according to the radio frequency electric field intensity of the target coordinate points under different frequency bands and the antenna downward inclination angles corresponding to the target coordinate points.

It can be understood that, after determining the radio frequency electric field strengths of the plurality of target coordinate points in different frequency bands and the antenna downtilts corresponding to the plurality of target coordinate points, the radiation evaluation device injects the radio frequency electric field strengths of the plurality of target coordinate points in different frequency bands and the antenna downtilt marks corresponding to the plurality of target coordinate points into the coverage area model of the base station to determine the radio frequency electric field model of the base station.

In a possible implementation manner, the radiation evaluation device may also determine the base station radiation database according to a radio frequency electric field model of the base station. Illustratively, the base station radiation database can store data in the form of a table.

Illustratively, table 2 below shows one possible format for the base station radiation database to store data in a table:

TABLE 2 base station radiation database

It can be understood that, according to the base station radiation database, the radiation evaluation device can determine the radio frequency electric field intensity of the position where the device to be evaluated is located according to the coordinate information of the device to be evaluated, the corresponding frequency band and the corresponding antenna downward inclination angle.

Based on the above technical solution, in this embodiment, a radio frequency electric field model of the base station is established by obtaining characteristic information of the base station, so that the safety range of the radio frequency electric field of the base station under different frequency bands is determined based on a safety limit in a subsequent process.

Exemplarily, referring to fig. 2 and as shown in fig. 5, in the radiation evaluation method provided by the present application, the radiation evaluation device determines the radio frequency electric field safety ranges of the base station in different frequency bands according to a plurality of safety limits, which specifically includes the following steps S501 to S502:

s501, the radiation evaluation device determines a plurality of safety coordinate points.

And aiming at each frequency band, the safe coordinate point is a coordinate point of which the radio frequency electric field intensity corresponding to the current frequency band is less than or equal to the safe limit value corresponding to the current frequency band in the target coordinate points. It is understood that the radiation evaluation means determines the radio frequency electric field strength of the coordinate point from the radio frequency electric field model of the base station.

It should be noted that, for the same target coordinate point, under different frequency bands, the target coordinate point may be a safe coordinate point or may not be a safe coordinate point. Therefore, the safe coordinate point among the plurality of target coordinate points is determined by the frequency division.

S502, the radiation evaluation device determines the radio frequency electric field safety range of the base station under different frequency bands according to the plurality of safety coordinate points.

Optionally, for each frequency band of the base station, the radiation evaluation device determines, according to the radio frequency electric field model of the base station, regions in which the radio frequency electric field strength is less than or equal to the safety limit corresponding to the frequency band, and determines a range set of the regions as the radio frequency electric field safety range of the frequency band. After the safety range of the radio frequency electric field is determined for each frequency band, the radiation evaluation device can obtain the safety range of the radio frequency electric field of the base station under different frequency bands.

Based on the above technical solution, in this embodiment, according to a plurality of safety limit values, the radio frequency electric field safety range of the base station under different frequency bands is determined, so as to facilitate the determination of whether the device to be evaluated is located within the radio frequency electric field safety range in the subsequent process.

In the embodiment of the present application, the radiation evaluation apparatus may be divided into the functional modules or the functional units according to the method example, for example, each functional module or each functional unit may be divided corresponding to each function, or two or more functions may be integrated into one processing module. The integrated module may be implemented in the form of hardware, or may also be implemented in the form of a software functional module or functional unit. The division of the modules or units in the embodiment of the present application is schematic, and is only a logic function division, and in actual implementation, there may be another division manner.

Fig. 6 is a schematic diagram illustrating a possible structure of a radiation evaluation apparatus according to an embodiment of the present application. The radiation evaluation device 600 includes: a processing unit 601 and an acquisition unit 602.

The processing unit 601 is configured to determine a radio frequency electric field model of the base station.

The processing unit 601 is further configured to determine a plurality of safety limits.

The processing unit 601 is further configured to determine the radio frequency electric field safety ranges of the base station in different frequency bands according to the radio frequency electric field model of the base station and the multiple safety limits.

The processing unit 601 is further configured to determine whether the device to be evaluated is located within the radio frequency electric field safety range, and determine an evaluation result.

Optionally, the obtaining unit 602 is configured to obtain feature information of the base station.

Optionally, the processing unit 601 is further configured to construct a three-dimensional rectangular coordinate system, and determine a coverage model of the base station in the three-dimensional rectangular coordinate system according to the characteristic information of the base station;

optionally, the processing unit 601 is further configured to obtain radio frequency electric field intensities of the multiple target coordinate points in different frequency bands and antenna downtilts corresponding to the multiple target coordinate points according to the coverage area model of the base station;

optionally, the processing unit 601 is further configured to determine a radio frequency electric field model of the base station according to radio frequency electric field intensities of the multiple target coordinate points in different frequency bands and antenna downtilts corresponding to the multiple target coordinate points.

Optionally, the processing unit 601 is further configured to determine a plurality of safety coordinate points for each frequency band.

Optionally, the processing unit 601 is further configured to determine a radio frequency electric field safety range of the base station in different frequency bands according to the multiple safety coordinate points.

Optionally, the obtaining unit 602 is further configured to obtain location information of the device to be evaluated and a frequency band corresponding to the device to be evaluated;

optionally, the processing unit 601 is further configured to determine, according to the position information of the device to be evaluated, an antenna downtilt angle corresponding to the device to be evaluated;

optionally, the processing unit 601 is further configured to determine, according to the position information of the device to be evaluated, coordinate information of the device to be evaluated in the three-dimensional rectangular coordinate system;

optionally, the processing unit 601 is further configured to determine whether the device to be evaluated is located within the radio frequency electric field safety range according to the coordinate information of the device to be evaluated, the frequency band corresponding to the device to be evaluated, and the antenna downtilt angle corresponding to the device to be evaluated.

Optionally, the processing unit 601 is further configured to determine that the evaluation result is the security of the device to be evaluated when the device to be evaluated is located within the security range of the radio frequency electric field;

optionally, the processing unit 601 is further configured to determine that the device to be evaluated is unsafe when the device to be evaluated is located outside the safe range of the radio frequency electric field.

Optionally, the radiation evaluation apparatus 600 may further include a storage unit (shown by a dashed box in fig. 6) storing a program or instructions, which when executed by the processing unit 601, enables the radiation evaluation apparatus to perform the radiation evaluation method described in the above method embodiments.

In addition, for the technical effects of the radiation evaluation apparatus described in fig. 6, reference may be made to the technical effects of the radiation evaluation method described in the foregoing embodiment, which are not described herein again.

Fig. 7 is a schematic diagram of another possible structure of the radiation evaluation device in the above embodiment. As shown in fig. 7, the radiation evaluation apparatus 700 includes: a processor 702.

The processor 702 is configured to control and manage actions of the radiation evaluation apparatus, for example, execute the steps executed by the processing unit 601 and the obtaining unit 602, and/or execute other processes of the technical solutions described herein.

The processor 702 may be implemented or performed with various illustrative logical blocks, modules, and circuits described in connection with the disclosure. The processor may be a central processing unit, general purpose processor, digital signal processor, application specific integrated circuit, field programmable gate array or other programmable logic device, transistor logic device, hardware component, or any combination thereof. Which may implement or execute the various illustrative logical blocks, modules, and circuits described in connection with the disclosure herein. The processor may also be a combination of computing functions, e.g., comprising one or more microprocessors in combination, a DSP and a microprocessor in combination, or the like.

Optionally, the radiation evaluation device 700 may further include a communication interface 703, a memory 701, and a bus 704. The communication interface 703 is used for supporting communication between the radiation evaluation apparatus 700 and other network entities. A memory 701 is used to store program codes and data of the radiation evaluation apparatus.

Wherein memory 701 may be a memory in a radiation evaluation device, which may include volatile memory, such as random access memory; the memory may also include non-volatile memory, such as read-only memory, flash memory, a hard disk, or a solid state disk; the memory may also comprise a combination of memories of the kind described above.

The bus 704 may be an Extended Industry Standard Architecture (EISA) bus or the like. The bus 704 may be divided into an address bus, a data bus, a control bus, and the like. For ease of illustration, only one thick line is shown in FIG. 7, but it is not intended that there be only one bus or one type of bus.

Through the description of the foregoing embodiments, it will be clear to those skilled in the art that, for convenience and simplicity of description, only the division of the functional modules is used for illustration, and in practical applications, the above function distribution may be completed by different functional modules as required, that is, the internal structure of the device may be divided into different functional modules to complete all or part of the above described functions. For the specific working processes of the system, the apparatus, and the module described above, reference may be made to the corresponding processes in the foregoing method embodiments, and details are not described here again.

The present application provides a computer program product containing instructions, which when run on an electronic device of the present application causes the computer to execute the radiation evaluation method of the above method embodiment.

An embodiment of the present application further provides a computer-readable storage medium, where instructions are stored in the computer-readable storage medium, and when the instructions are executed by a computer, the electronic device of the present application performs each step performed by the radiation evaluation apparatus in the method flow shown in the foregoing method embodiment.

A computer readable storage medium may be, for example, but not limited to, an electronic, magnetic, optical, electromagnetic, infrared, or semiconductor system, apparatus, or device, or any combination of the foregoing. More specific examples (a non-exhaustive list) of the computer readable storage medium would include the following: an electrical connection having one or more wires, a portable computer diskette, and a hard disk. Random Access Memory (RAM), Read-Only Memory (ROM), Erasable Programmable Read-Only Memory (EPROM), registers, a hard disk, optical fiber, a portable Compact disk Read-Only Memory (CD-ROM), optical storage devices, magnetic storage devices, or any other form of computer-readable storage medium known in the art, in any suitable combination. An exemplary storage medium is coupled to the processor such the processor can read information from, and write information to, the storage medium. Of course, the storage medium may also be integral to the processor. The processor and the storage medium may reside in an Application Specific Integrated Circuit (ASIC). In embodiments of the present application, a computer readable storage medium may be any tangible medium that can contain, or store a program for use by or in connection with an instruction execution system, apparatus, or device.

The above description is only an embodiment of the present application, but the scope of the present application is not limited thereto, and any changes or substitutions within the technical scope disclosed in the present application should be covered within the scope of the present application. Therefore, the protection scope of the present application should be subject to the protection scope of the claims.

Claims

1. A method of radiation evaluation, the method comprising:

determining a radio frequency electric field model of a base station; the radio frequency electric field model is used for representing the radio frequency electric field intensity of the base station in different frequency bands within the coverage range of the base station;

determining a plurality of safety limits; each safety limit value corresponds to each frequency band of the base station one by one;

determining the radio frequency electric field safety ranges of the base station under different frequency bands according to the radio frequency electric field model of the base station and the plurality of safety limit values;

and judging whether the equipment to be evaluated is positioned in the safety range of the radio frequency electric field or not, and determining an evaluation result.

2. The method of claim 1, wherein the determining the radio frequency electric field model of the base station specifically comprises:

determining characteristic information of the base station; wherein the characteristic information of the base station comprises one or more of the following items: the transmitting power, the downward inclination angle of the antenna, the type of the antenna, the erection mode, the hanging height of the base station and the range of frequency bands of the base station;

constructing a three-dimensional rectangular coordinate system, and determining a coverage area model of the base station in the three-dimensional rectangular coordinate system according to the characteristic information of the base station;

acquiring radio frequency electric field strengths of a plurality of target coordinate points under different frequency bands and antenna downward inclination angles corresponding to the target coordinate points according to the coverage range model of the base station;

and determining a radio frequency electric field model of the base station according to the radio frequency electric field strength of the plurality of target coordinate points under different frequency bands and the antenna downward inclination angles corresponding to the plurality of target coordinate points.

3. The method according to claim 2, wherein the determining the radio frequency electric field safety ranges of the base station in different frequency bands according to the radio frequency electric field model of the base station and the plurality of safety limits specifically comprises:

for each frequency band, determining a plurality of safety coordinate points according to a radio frequency electric field model of the base station; the safe coordinate point is a coordinate point of the target coordinate points, wherein the radio frequency electric field intensity corresponding to the frequency band is less than or equal to the safe limit value corresponding to the frequency band;

and determining the radio frequency electric field safety range of the base station under different frequency bands according to the plurality of safety coordinate points.

4. The method according to claim 3, wherein the determining whether the device under evaluation is within the safe range of the radio frequency electric field specifically comprises:

determining the position information of the equipment to be evaluated and the frequency band corresponding to the equipment to be evaluated;

determining an antenna downward inclination angle corresponding to the equipment to be evaluated according to the position information of the equipment to be evaluated;

determining coordinate information of the equipment to be evaluated in the three-dimensional rectangular coordinate system according to the position information of the equipment to be evaluated;

and judging whether the equipment to be evaluated is positioned in the radio frequency electric field safety range or not according to the coordinate information of the equipment to be evaluated, the frequency band corresponding to the equipment to be evaluated and the antenna downward inclination angle corresponding to the equipment to be evaluated.

5. The method according to any one of claims 1 to 4, wherein the evaluation result includes the device to be evaluated is secure and the device to be evaluated is not secure, and the determining the evaluation result specifically includes:

if the equipment to be evaluated is located in the radio frequency electric field safety range, determining that the evaluation result is the safety of the equipment to be evaluated;

and if the equipment to be evaluated is positioned outside the safety range of the radio frequency electric field, determining that the evaluation result is that the equipment to be evaluated is unsafe.

6. A radiation evaluation apparatus, characterized in that the radiation evaluation apparatus comprises: a processing unit;

the processing unit is used for determining a radio frequency electric field model of the base station; the radio frequency electric field model is used for representing the radio frequency electric field intensity of the base station in different frequency bands within the coverage range of the base station;

the processing unit is further configured to determine a plurality of safety limits; each safety limit value corresponds to each frequency band of the base station one by one;

the processing unit is further configured to determine, according to the radio frequency electric field model of the base station and the multiple safety limit values, radio frequency electric field safety ranges of the base station in different frequency bands;

the processing unit is further used for judging whether the equipment to be evaluated is located in the safety range of the radio frequency electric field or not and determining an evaluation result.

7. The radiation evaluation apparatus of claim 6 further comprising: an acquisition unit;

the acquiring unit is used for acquiring the characteristic information of the base station; the characteristic information of the base station comprises one or more of the following items: the transmitting power, the downward inclination angle of the antenna, the type of the antenna, the erection mode, the hanging height of the base station and the range of frequency bands of the base station;

the processing unit is further configured to construct a three-dimensional rectangular coordinate system, and determine a coverage model of the base station in the three-dimensional rectangular coordinate system according to the characteristic information of the base station;

the processing unit is further configured to obtain radio frequency electric field strengths of the plurality of target coordinate points in different frequency bands and antenna downtilts corresponding to the plurality of target coordinate points according to the coverage model of the base station;

the processing unit is further configured to determine a radio frequency electric field model of the base station according to the radio frequency electric field strength of the plurality of target coordinate points in different frequency bands and the antenna downtilt angles corresponding to the plurality of target coordinate points.

8. The radiation evaluation apparatus of claim 7,

the processing unit is further configured to determine, for each of the frequency bands, a plurality of safety coordinate points according to a radio frequency electric field model of the base station; the safe coordinate point is a coordinate point of the target coordinate points, wherein the radio frequency electric field intensity corresponding to the frequency band is less than or equal to the safe limit value corresponding to the frequency band;

the processing unit is further configured to determine, according to the plurality of safety coordinate points, a radio frequency electric field safety range of the base station in different frequency bands.

9. The radiation evaluation apparatus of claim 8,

the acquiring unit is further configured to acquire the position information of the device to be evaluated and a frequency band corresponding to the device to be evaluated;

the processing unit is further configured to determine an antenna downtilt angle corresponding to the device to be evaluated according to the position information of the device to be evaluated;

the processing unit is further configured to determine coordinate information of the device to be evaluated in the three-dimensional rectangular coordinate system according to the position information of the device to be evaluated;

the processing unit is further configured to determine whether the device to be evaluated is located within the radio frequency electric field safety range according to the coordinate information of the device to be evaluated, the frequency band corresponding to the device to be evaluated, and the antenna downtilt angle corresponding to the device to be evaluated.

10. The radiation evaluation apparatus of any one of claims 6-9,

the processing unit is further configured to determine that the evaluation result is the safety of the device to be evaluated when the device to be evaluated is located within the safety range of the radio frequency electric field;

the processing unit is further configured to determine that the evaluation result is that the device to be evaluated is unsafe when the device to be evaluated is located outside the safety range of the radio frequency electric field.

11. An electronic device, comprising: a processor and a memory; wherein the memory is configured to store computer-executable instructions that, when executed by the electronic device, cause the electronic device to perform the radiation evaluation method of any of claims 1-5.

12. A computer-readable storage medium comprising instructions that, when executed by an electronic device, enable the electronic device to perform the radiation evaluation method of any of claims 1-5.