CN107782997A

CN107782997A - Working region determines method and device in a kind of reverberation chamber

Info

Publication number: CN107782997A
Application number: CN201711022158.9A
Authority: CN
Inventors: 王卫民; 刘元安; 贾晨宇; 吴永乐; 于翠屏; 黎淑兰; 苏明
Original assignee: Beijing University of Posts and Telecommunications
Current assignee: Beijing University of Posts and Telecommunications
Priority date: 2017-10-27
Filing date: 2017-10-27
Publication date: 2018-03-09
Anticipated expiration: 2037-10-27
Also published as: CN107782997B

Abstract

The embodiments of the invention provide working region in a kind of reverberation chamber to determine method and device, belongs to communication technical field, this method includes：N root transmitting antennas are set in the reverberation room environmental created, and set transmitting antenna is utilized to continue transmission of electromagnetic signals in the reverberation room environmental, target reverberation room environmental is generated, utilizes generated target reverberant ambiance, a working region is determined in the target reverberation room environmental；Identified working region is optimized using genetic algorithm, obtains the target operation region of the target reverberation chamber.Method provided in an embodiment of the present invention can to form uniformity magnetic in the working region of reverberation chamber.

Description

Working region determines method and device in a kind of reverberation chamber

Technical field

The present invention relates to communication technical field, and method and device is determined more particularly to working region in a kind of reverberation chamber.

Background technology

In recent years, with the popularization of 4G technologies and the research and development of 5G technologies, the performance test for terminal device is also just aobvious Obtain particularly significant.And with being on the increase for electric equipment, between electric equipment mutual interference also with regard to getting worse, for The test of EMC (Electromagnetic Compatibility, electromagnetic compatibility) characteristic also needs renewed attention.

At present, the test that EMC characteristics are carried out to terminal device is generally carried out by test system in reverberation chamber, is such as schemed Shown in 1, the test system is including in the agitator 20 being arranged in reverberation chamber 10, the working region 11 being arranged in reverberation chamber 10 Reception antenna 30 and 1 transmitting antenna 40 being arranged at beyond working region 11 and stirring region 12, wherein, stirring region 12 be the working region of agitator, and transmitting antenna 40 is connected with signal source, and reception antenna 30 is connected with test with equipment.

For reverberation chamber for total reflection shielding cavity, the electromagnetic wave signal that transmitting antenna 40 is launched reaches the wall of shielding cavity It will be reflected on face, the electromagnetic wave signal after reflection is carried out regular stirring by the agitator 20 in shielding cavity, due to Among above-mentioned test system, working region 11 is established a capital really recommends according in EC61000-4-21 standards, apart from cavity Wall or the minimum range of agitator 20 should be greater than 1/4 wavelength under present operating frequency, so in 100Mhz work Under frequency, usual working region can be apart from the wall or more than the 0.8m of agitator 20 of cavity, yet with 100Mhz working frequencies Under reverberation chamber inner space it is relatively large, result according to IEC61000-4-21 recommend working region determine that method can not So that forming uniformity magnetic in the working region 11 of reverberation chamber 10, causing can not be to the terminal device to be measured in working region 11 70 carry out the test of EMC characteristics.

The content of the invention

The purpose of the embodiment of the present invention is to provide working region in a kind of reverberation chamber and determines method and device, to mix Ring and uniformity magnetic is formed in the working region of room.Concrete technical scheme is as follows：

Working region determines method in a kind of reverberation chamber, and applied to client, methods described includes：

N root transmitting antennas are set in the reverberation room environmental created, and utilize set transmitting antenna described mixed Ring and continue transmission of electromagnetic signals in room environmental, generate target reverberation room environmental, wherein, the reverberation room environmental includes m stepping Reverberation chamber housing made of formula agitator and galvanized steel plain sheet, n and m span are more than or equal to 1, less than 3；

Generated target reverberant ambiance is utilized, a working region is determined in the target reverberation room environmental；

Identified working region is optimized using genetic algorithm, obtains the target operation area of the target reverberation chamber Domain.

Further, it is described that identified working region is optimized using genetic algorithm, obtain the target reverberation The target operation region of room, including：

Random generation the first predetermined number target generation individual, wherein, each target generation individual is identified workspace The location parameter of optional two points in domain, the location parameter is the parameter under rectangular coordinate system, and the coordinate of two points is not Can be simultaneously in same reference axis；

A rectangular active regions domain is built using the location parameter of described two points, wherein, the rectangular active regions domain Scope is more than or equal to 1m*1m*1m, less than identified working region；

The the first predetermined number target generated is input in default simulated program for individual, obtains each target generation The fitness value of individual；

Using target generation individual as current individual；

From the first predetermined number current individual the second predetermined number current individual is selected according to predetermined manner It is passed to colony of future generation；

Pairing intersection is carried out using default crossover algorithm to the 3rd predetermined number current individual, intersection generation will be matched The 3rd new predetermined number current individual be passed to colony of future generation, wherein, the 3rd predetermined number is the first present count Amount subtracts the second predetermined number；

Row variation is entered using default mutation algorithm to the first predetermined number current individual, by the new of generation that make a variation The first predetermined number current individual be passed to colony of future generation；

Current individual corresponding to the incoming colony of future generation is input in default simulated program, obtained each current The fitness value of individual, and the fitness value obtained is present in default set；

Judge whether evolutionary generation is less than predetermined threshold value；

If it is, current individual corresponding to highest fitness value in extraction set, and by two positions of the current individual Put target operation region of the parameter as the target reverberation chamber；

Performed if it has not, returning to pre- according to predetermined manner selection second from the first predetermined number current individual If the step of quantity current individual is passed to colony of future generation.

Further, it is described to select the second present count according to predetermined manner from the first predetermined number current individual Amount current individual is passed to colony of future generation, including：

The fitness value of each current individual to being obtained is ranked up according to size；

The second predetermined number of fitness value highest current individual is directly passed to colony of future generation after selected and sorted.

Further, it is described that pairing intersection is carried out using default crossover algorithm to the 3rd predetermined number current individual, will The 3rd new predetermined number current individual for matching intersection generation is passed to colony of future generation, including：

3rd predetermined number current individual is subjected to random pair, it is default to the described 3rd according still further to the first predetermined probabilities Quantity current individual is intersected using default crossover algorithm, generates the 3rd new predetermined number current individual；

The 3rd new predetermined number current individual of generation is passed to colony of future generation.

Further, it is described that row variation is entered using default mutation algorithm to the first predetermined number current individual, will The the first new predetermined number current individual generated that makes a variation is passed to colony of future generation, including：

For the first predetermined number current individual, become according to the second predetermined probabilities using default mutation algorithm It is different, generate the first new predetermined number current individual；

The first new predetermined number current individual of generation is passed to colony of future generation.

It is further, described to be input to the first predetermined number target generated in default simulated program for individual, The fitness value of each target generation individual is obtained, including：

For the first predetermined number target generation individual of reception, it is pre- that described first is generated in identified working region If field intensity value corresponding to quantity target generation individual；

Using each field intensity value of generation, standard deviation corresponding to each field intensity value is calculated；

Each standard deviation is passed in the fitness value function of following expression, calculates first predetermined number The fitness value of target generation individual；

The expression formula is F=100- (σ_x+σ_y+σ_z+σ_xyz)；

Wherein, F is fitness value, σ corresponding to current individual_x、σ_y、σ_zRespectively predetermined number probe is in x directions, y side To field intensity value, σ corresponding to, z directions_xyzIt is predetermined number probe in resultant field intensity values corresponding to x, y, z direction.

Working region determining device, described device include in a kind of reverberation chamber：

Target reverberation chamber environment set module, for setting n root transmitting antennas, and profit in the reverberation room environmental created Continue transmission of electromagnetic signals in the reverberation room environmental with set transmitting antenna, generate target reverberation room environmental, wherein, The reverberation room environmental includes reverberation chamber housing made of m step-by-step movement agitator and galvanized steel plain sheet, and n and m span are equal For more than or equal to 1, less than 3；

The determining module of working region, generated target reverberant ambiance is utilized, in the target reverberation room environmental really A fixed working region；

The determining module in target operation region, for being optimized using genetic algorithm to identified working region, obtain Obtain the target operation region of the target reverberation chamber.

Further, the determining module in the target operation region includes：

Target generation individual generation submodule, for generating the first predetermined number target generation individual at random, wherein, each mesh Mark generation individual is the location parameter of optional two points in identified working region, and the location parameter is under rectangular coordinate system Parameter, and the coordinate of two points can not be simultaneously in the same reference axis；

Rectangular active regions domain builds submodule, for building a rectangular active regions using the location parameter of described two points Domain, wherein, the scope in the rectangular active regions domain is more than or equal to 1m*1m*1m, less than identified working region；

First fitness value obtains submodule, pre- for the generated first predetermined number target to be input to for individual If in simulated program, obtain the fitness value of each target generation individual；

Current individual defines submodule, for using target generation individual as current individual；

Body selects submodule, for pre- according to predetermined manner selection second from the first predetermined number current individual If quantity current individual is passed to colony of future generation；

Pairing intersects submodule, for carrying out pairing friendship using default crossover algorithm to the 3rd predetermined number current individual Fork, the 3rd new predetermined number current individual for matching intersection generation is passed to colony of future generation, wherein, the described 3rd is pre- If quantity, which is the first predetermined number, subtracts the second predetermined number；

Make a variation submodule, for entering row variation using default mutation algorithm to the first predetermined number current individual, The the first new predetermined number current individual for the generation that makes a variation is passed to colony of future generation；

Second fitness value calculation submodule, for current individual corresponding to the incoming colony of future generation to be input to In default simulated program, the fitness value of each current individual is obtained, and the fitness value obtained is had into default set In；

Judging submodule, for judging whether evolutionary generation is less than predetermined threshold value；If it is, triggering extracting sub-module, if It is no, triggering selection submodule；

The extracting sub-module, for extracting current individual corresponding to the highest fitness value in gathering, and this is current Target operation region of two location parameters of individual as the target reverberation chamber.

Further, the selection submodule includes：

Sequencing unit, the fitness value for each current individual to being obtained are ranked up according to size；

Highest fitness value unit is selected, works as the one before for the predetermined number of fitness value highest second after selected and sorted Body is directly passed to colony of future generation.

Further, described pair of pairing intersects submodule and included：

First generation unit, it is default according still further to first for the 3rd predetermined number current individual to be carried out into random pair Probability is intersected to the 3rd predetermined number current individual using default crossover algorithm, generates the 3rd new predetermined number Individual current individual；

First incoming unit, the 3rd new predetermined number current individual of generation is passed to colony of future generation.

Further, the variation submodule includes：

Second generation unit, for for the first predetermined number current individual, being utilized according to the second predetermined probabilities Default mutation algorithm enters row variation, generates the first new predetermined number current individual；

Second incoming unit, for the first new predetermined number current individual of generation to be passed into colony of future generation.

Further, first fitness value obtains submodule and included：

Field intensity value computing unit, for the first predetermined number target generation individual for reception, in identified work Field intensity value corresponding to the first predetermined number target generation individual is generated in region；

Standard deviation computing unit, for each field intensity value using generation, calculate standard deviation corresponding to each field intensity value；

Fitness value calculation unit, for each standard deviation to be passed in the fitness value function of following expression, Calculate the fitness value of the first predetermined number target generation individual；

The expression formula is F=100- (σ_x+σ_y+σ_z+σ_xyz)；

Wherein, F is fitness value, σ corresponding to current individual_x、σ_y、σ_zRespectively predetermined number probe is in x directions, y side To field intensity value, σ corresponding to, z directions_xyzPredetermined number probe is in resultant field intensity values corresponding to x, y, z direction.

At the another aspect implemented of the present invention, the embodiment of the present invention additionally provides a kind of electronic equipment, including processor, logical Believe interface, memory and communication bus, wherein, processor, communication interface, memory is completed mutual logical by communication bus Letter；

Memory, for depositing computer program；

Processor, during for performing the program deposited on memory so that computer performs any of the above-described described mixed Ring office work area determination method.

At the another aspect that the present invention is implemented, a kind of computer-readable recording medium is additionally provided, it is described computer-readable Instruction is stored with storage medium, when run on a computer so that computer performs any of the above-described described reverberation chamber Interior working region determines method.

Working region determines method and device in a kind of reverberation chamber provided in an embodiment of the present invention, and this method can created N root transmitting antennas are set in the reverberation room environmental built, and utilize set transmitting antenna to continue in the reverberation room environmental Transmission of electromagnetic signals, target reverberation room environmental is generated, generated target reverberant ambiance is utilized, in the target reverberation room environmental One working region of middle determination；Identified working region is optimized using genetic algorithm, obtains the target reverberation chamber Target operation region.This method is carried out excellent using genetic algorithm to the working region recommended in the target reverberation chamber of generation Change, meet the condition of field uniformity, and then can also meet field uniformity condition in time, make test environment more stability. Certainly, any product or method for implementing the present invention must be not necessarily required to reach all the above advantage simultaneously.

Brief description of the drawings

In order to illustrate more clearly about the embodiment of the present invention or technical scheme of the prior art, below will be to embodiment or existing There is the required accompanying drawing used in technology description to be briefly described.

Fig. 1 is a kind of structural representation of test system；

Fig. 2 is the schematic diagram that working region determines method in the first reverberation chamber provided in an embodiment of the present invention；

Fig. 3 is the schematic diagram that working region determines method in second of reverberation chamber provided in an embodiment of the present invention；

Fig. 4 is the schematic diagram that working region determines method in the third reverberation chamber provided in an embodiment of the present invention；

Fig. 5 is the schematic diagram that working region determines method in the 4th kind of reverberation chamber provided in an embodiment of the present invention；

Fig. 6 is the schematic diagram of working region determining device in a kind of reverberation chamber provided in an embodiment of the present invention；

Fig. 7 is the schematic diagram of a kind of electronic equipment provided in an embodiment of the present invention.

Embodiment

Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is carried out clear, complete Site preparation describes, it is clear that described embodiment is only part of the embodiment of the present invention, rather than whole embodiments.It is based on Embodiment in the present invention, those of ordinary skill in the art are obtained every other under the premise of creative work is not made Embodiment, belong to the scope of protection of the invention.…

Reverberation chamber test environment is described first, it is specific as follows：

The total reflection shielding cavity that the environment is made up of galvanized steel plain sheet, there is one or more transmitting inside shielding cavity Antenna, and the agitator of one or more different working modes.There is no the presence of absorbing material in shielding cavity, so hair Penetrating the electromagnetic wave that antenna is launched and reaching will reflect on the wall of shielding cavity, at the same time, in shielding cavity Electromagnetic signal can also be carried out regular stirring by each agitator, to be formed in statistical significance in the working region of reverberation chamber Every uniformity, simulate real environment whereby.

In general, reverberation chamber is to be used in the shield shell of high quality factor (high q-factor) equipped with the agitator of machinery Continuously to change the field structure of inside.Under the agitator stirring action of machinery, the electric field of optional position in reverberation chamber Or energy density, phase, polarization and the incident direction in magnetic field are changed at random by certain certain Statistical Distribution.In reverberation chamber Interior measurement can be considered as a random process.Average response of the Device under test to field, at least rotates a circle in agitator The integration of response in time.In the case of agitator stirs one week, internal electric field or magnetic field need to count uniform reverberation chamber, that is, exist Under the meaning of ensemble average, indoor electric field or magnetic energy density need uniform statistics, electric field or magnetic field polarised direction to need to unite Meter uniformly, the phase of each polarised direction of electric field or magnetic field need to count uniformly, in test zone institute a little with all directions Electromagnetic energy stream be to need to count uniform.The determination of the working region of reverberation chamber plays most heavy to closing to test as can be seen here The effect wanted.

While test environment is built, the emulation for reverberation chamber also seems particularly significant, and the environment of reverberation chamber is once Build up just can not change easily, thus reverberation chamber emulate among improve reverberation chamber performance, and improve reverberation chamber emulation with The correlation of true reverberation chamber is also paid attention to by people.

Fig. 2 is the schematic diagram that working region determines method in the first reverberation chamber provided in an embodiment of the present invention, is applied to Client, methods described include：

S101, n root transmitting antennas are set in the reverberation room environmental created, and utilize set transmitting antenna in institute State and continue transmission of electromagnetic signals in reverberation room environmental, generate target reverberation room environmental, wherein, the reverberation room environmental includes m Reverberation chamber housing made of step-by-step movement agitator and galvanized steel plain sheet, n and m span are more than or equal to 1, less than 3；

It should be noted that the test environment of the reverberation chamber is typically a cuboid, double transmitting antennas are fixed on Among reverberation chamber two corners substantially symmetrical about its central axis, and Persistent Excitation continues transmission of electromagnetic signals.

It is noted that double transmitting antennas can not be fixed on two corners, as long as the position that double transmitting antennas are fixed Point be with reverberation chamber is substantially symmetrical about its central axis can be with.

S102, generated target reverberant ambiance is utilized, a working region is determined in the target reverberation room environmental；

Based on the above-mentioned description to target reverberation room environmental, in this context according to IEC (International Electrical Commission, International Electrotechnical Commission) the reverberation chamber working region of standard recommendation determines method, determine one The scope of individual working region, the technical scheme for the working region that the embodiment of the present invention pair determines do not limit.

It should be noted that the target reverberation room environmental established in the client is surveyed based on the reverberation chamber created in advance What test system was emulated, the test system is mainly used in carrying out terminal device the test of EMC characteristics, wherein, reverberation chamber leads to The total reflection shielding cavity being often made up of galvanized steel plain sheet, therefore, being all-trans by test system and reverberation chamber cavity The wireless propagation environment that characteristic creates a homogeneous isotropism for terminal device to be measured in working region to be determined is penetrated, and The field strength environment of high intensity is produced in a short time, to reach the test that EMC characteristics are carried out to terminal device to be measured.

S103, identified working region is optimized using genetic algorithm, obtains the target of the target reverberation chamber Working region.

It is noted that in the case where reverberation chamber is fixed, internal structure can not be adjusted on a large scale, So determining that an optimal working region is just particularly important, in the case where transmitting antenna and agitator are all fixed, lead to Cross genetic algorithm and calculate more excellent working region under the present situation, it is possible to reduce because produced by test zone environment is uneven The problem of, the further measurement accuracy for lifting current goal reverberation chamber.

Genetic algorithm is the biological evolution process for the natural selection and genetic mechanisms for simulating Darwinian evolutionism Computation model, it is a kind of method by simulating natural evolution process searches optimal solution.Therefore, using heredity among reverberation chamber Algorithm can be with working region in the range of what, and the working region magnetic field of reverberation chamber has stable uniformity.

It should be noted that among fixed working region, using genetic algorithm optimization working region scope, by work It is individual as an a chromosome i.e. target generation for genetic algorithm to make two fixed point coordinates in region, in reverberation chamber working region A part of the field uniformity as fitness value function, by selecting, intersecting, mutation operator, obtain chromosome of new generation i.e. Colony of future generation, it is this take excellent natural selection under, the working region scope of reverberation chamber can be towards can more meet object function The direction of constraints is developed.It is eventually found the i.e. above-mentioned work to be determined of the optimum range of working region under current reverberation room environmental Make region, that is, obtain the optimal field uniform properties of reverberation chamber；

Specifically,

A kind of embodiment of this step is：For the first predetermined number target generation individual of reception, identified Field intensity value corresponding to the first predetermined number target generation individual is generated in working region；

The expression formula is F=100- (σ_x+σ_y+σ_z+σ_xyz)；

The embodiment calculates standard deviation corresponding to each field intensity value by generating field intensity value of each target for individual； Each standard deviation of calculating is passed in fitness value function, obtains the first predetermined number target generation individual Fitness value, prepare for subsequently selected excellent colony of future generation.

Using target generation individual as current individual；

A kind of embodiment of this step is：The fitness value of each current individual to being obtained is arranged according to size Sequence；

The embodiment is by selecting the incoming next generation of the second predetermined number highest fitness value, to ensure adaptability The good individual of energy has more chances to produce offspring, and enables good characteristic heredity, also just says to ensure the good individual of adaptability Magnetic field homogeneity corresponding to the working region of structure is more excellent.

A kind of embodiment of this step is：3rd predetermined number current individual is subjected to random pair, according still further to the One predetermined probabilities are intersected to the 3rd predetermined number current individual using default crossover algorithm, and it is pre- to generate new the 3rd If quantity current individual；

The embodiment works as the one before by the way that default crossover algorithm is acted on into fitness value relative to the second predetermined number 3rd predetermined number current individual of body difference, selected two individual strings of binary characters are carried out by the first predetermined probabilities Intersect, produce the 3rd new predetermined number current individual, further change the adaptation of the 3rd predetermined number current individual Angle value.

A kind of embodiment of this step is：It is default general according to second for the first predetermined number current individual Rate enters row variation using default mutation algorithm, generates the first new predetermined number current individual；

The embodiment is by working as the one before to the first predetermined number according to default mutation probability to included by each individual Positional information be changed, generate the first new predetermined number current individual, further change to a certain extent The fitness value of one predetermined number current individual.

It is described to select the second predetermined number current according to predetermined manner from the first predetermined number current individual Individual is passed to colony of future generation, including：

As can be seen here, method provided in an embodiment of the present invention in the target reverberant ambiance generated by determining a work Make region；Identified working region is optimized using genetic algorithm, obtains optimal working region i.e. target work Make region, to form uniformity magnetic in the working region of reverberation chamber, EMC characteristics can be tested.

The embodiments of the invention provide working region in second of reverberation chamber to determine method by Fig. 3, described applied to client Method includes：

S201, n root transmitting antennas are set in the reverberation room environmental created, and utilize set transmitting antenna in institute State and continue transmission of electromagnetic signals in reverberation room environmental, generate target reverberation room environmental, wherein, the reverberation room environmental includes m Reverberation chamber housing made of step-by-step movement agitator and galvanized steel plain sheet, n and m span are more than or equal to 1, less than 3；

Wherein, step S201-S202 is identical with the method that the step S101-S102 in Fig. 2 embodiments is performed respectively.Cause This, all embodiments in Fig. 2 are applied to Fig. 3, and can reach same or analogous beneficial effect, will not be repeated here.

S202, generated target reverberant ambiance is utilized, a working region is determined in the target reverberation room environmental；

S203, it is random to generate the first predetermined number target generation individual, wherein, each target generation individual is identified work Make the location parameter of optional two points in region, the location parameter is the parameter under rectangular coordinate system, and the seat of two points Mark can not be simultaneously in same reference axis；

It is clearer in order to understand this step, now lift following example description thereof：

The random initial population that generates is that target generation individual is 30 individuals, and each individual includes two working region optionally The location parameter (x1, y1, z1) and (x2, y2, z2) of point.

S204, a rectangular active regions domain is built using the location parameter of described two points, wherein, the rectangular active regions The scope in domain is more than or equal to 1m*1m*1m, less than identified working region；

From the above-mentioned description to coordinate system, two points are in rectangular coordinate system, therefore the coordinate of two points is not A rectangular active regions domain can be built simultaneously in same reference axis.

Based on above-mentioned example, using two information architectures, one rectangular active regions domain, this rectangular active regions domain should not It should meet working region determined by the working range i.e. S202 of IEC standard recommendation less than 1m*1m*1m, but apart from wall distance.

It should be noted that the working region scope that two points are formed is no more than the working region that S102 is determined.

S205, the first predetermined number target generated is input in default simulated program for individual, obtained each The fitness value of target generation individual；

Based on above-mentioned example, generated 30 targets are input in default simulated program for individual, obtained each The fitness value of target generation individual；Whether it is optimal effect for appraisal region field uniformity.

S206, using target generation individual as current individual；

S207, select the second predetermined number current according to predetermined manner from the first predetermined number current individual Individual is passed to colony of future generation；

It is noted that will selection the second predetermined number individual act on colony, i.e., the first predetermined number each and every one In by a certain probability select individual, selected probability is directly proportional to fitness value.The purpose of selection is the individual optimization Colony of future generation is genetic directly to, selection operation is built upon on the basis of the fitness value assessment of individual in population；

S208, pairing intersection is carried out using default crossover algorithm to the 3rd predetermined number current individual, friendship will be matched The 3rd new predetermined number current individual of fork generation is passed to colony of future generation, wherein, the 3rd predetermined number is first Predetermined number subtracts the second predetermined number；

Because the fitness value of the 3rd predetermined number current individual is relative to corresponding to the second predetermined number individual Fitness value is smaller, and this illustrates that the 3rd predetermined number current individual is poor, therefore, can be by the way that default crossover algorithm is made For the 3rd predetermined number individual, two selected individual strings of binary characters are intersected by certain probability, are produced New individual.

It is noted that what is played the role of a nucleus in genetic algorithm is exactly crossover algorithm.

S209, row variation is entered using default mutation algorithm to the first predetermined number current individual, by become heteroplasia Into the first new predetermined number current individual be passed to colony of future generation；

Mutation algorithm is acted on into colony, be in colony corresponding to the individual of binary word string representation certain A little genes are that the genic value i.e. character on binary-coded character changes, and the gene strand of individual is entered into row variation by certain probability, right It is exactly to negate for string of binary characters, obtains colony of future generation.

S210, current individual corresponding to the incoming colony of future generation is input in default simulated program, obtained every The fitness value of individual current individual, and the fitness value obtained is present in default set；

It is noted that the colony of future generation of this step refers to the first new predetermined number current individual, second Predetermined number current individual, the 3rd new predetermined number current individual.

S211, judges whether evolutionary generation is less than predetermined threshold value；If it is, performing S212, performed if it has not, returning S207；

Predetermined threshold value can be rule of thumb determined, it can be understood as be needed after being recycled to evolutionary generation corresponding to the value The corresponding individual obtained of the evolutionary generation could be caused for preferable individual.

S212, current individual corresponding to the highest fitness value in extraction set, and by two positions of the current individual Target operation region of the parameter as the target reverberation chamber.

Highest fitness value means that current individual is optimal individual, i.e., the coordinate value of two points is best effort area Domain.

As can be seen here, method provided in an embodiment of the present invention passes through in the i.e. built machine of the target reverberant ambiance generated A working region is determined in tool stirring reverberation chamber；Using genetic algorithm optimization working region scope, by two of working region Point coordinates is target generation individual as a chromosome of genetic algorithm, by selecting, matching intersection, mutation operator, is obtained new Generation chromosome is new predetermined number current individual so that uniformity magnetic is formed in the working region of reverberation chamber, can EMC characteristics are tested.

The embodiments of the invention provide working region in the third reverberation chamber to determine method by Fig. 4, described applied to client Method includes：

S301, n root transmitting antennas are set in the reverberation room environmental created, and utilize set transmitting antenna in institute State and continue transmission of electromagnetic signals in reverberation room environmental, generate target reverberation room environmental, wherein, the reverberation room environmental includes m Reverberation chamber housing made of step-by-step movement agitator and galvanized steel plain sheet, n and m span are more than or equal to 1, less than 3；

Wherein, step S301-S306 is identical with the method that the step S201-S106 in Fig. 3 embodiments is performed respectively.Cause This, all embodiments in Fig. 3 are applied to Fig. 4, and can reach same or analogous beneficial effect, will not be repeated here.

S302, generated target reverberant ambiance is utilized, a working region is determined in the target reverberation room environmental；

S303, it is random to generate the first predetermined number target generation individual, wherein, each target generation individual is identified work Make the location parameter of optional two points in region, the location parameter is the parameter under rectangular coordinate system, and the seat of two points Mark can not be simultaneously in same reference axis；

S304, a rectangular active regions domain is built using the location parameter of described two points, wherein, the rectangular active regions The scope in domain is more than or equal to 1m*1m*1m, less than identified working region；

S305, the first predetermined number target generated is input in default simulated program for individual, obtained each The fitness value of target generation individual；

S306, using target generation individual as current individual；

S307, the fitness value of each current individual to being obtained are ranked up according to size；

Wherein, above-mentioned be ranked up according to size can select descending sequence, can also select ascending sequence.

S308, fitness value highest the second predetermined number current individual is directly passed to group of future generation after selected and sorted Body；

In this step, it is ranked up if descending, then selects the fitness value body of the second predetermined number above Corresponding current individual, is ranked up if ascending, then selects the fitness value body pair of the second predetermined number below The current individual answered.

In genetic algorithm, the good and bad degree of individual is evaluated with fitness value, fitness value is bigger, and individual is better, instead It, fitness value is smaller, then individual is poorer, individual is selected according to the size of fitness value, to ensure that conformability is good Individual there are more chances to produce offspring, enable good characteristic heredity, it is known that, the fitness value highest of this step represents The corresponding individual is preferably.

S309, the 3rd predetermined number current individual is subjected to random pair, according still further to the first predetermined probabilities to described the Three predetermined number current individuals are intersected using default crossover algorithm, generate the 3rd new predetermined number current individual； Wherein, the 3rd predetermined number is that the first predetermined number subtracts the second predetermined number；

This step can be：3rd predetermined number current individual match two-by-two at random, it is then pre- according to first If probability carries out data cross to two current individuals in each pair current individual, generate the 3rd new predetermined number and work as the one before Body.

S310, the 3rd new predetermined number current individual of generation is passed to colony of future generation；

It is noted that it can be seen from the definition of the 3rd predetermined number, the 3rd predetermined number current individual is fitness Relatively low individual, it is therefore desirable to the new quantity current individual of cross match generation is carried out to the number of individuals, so as to will be new The quantity current individual is passed to colony of future generation.

Second predetermined probabilities can take 0.8.

S311, for the first predetermined number current individual, default mutation algorithm is utilized according to the second predetermined probabilities Enter row variation, generate the first new predetermined number current individual；

This step is that the first predetermined number current individual is entered into row variation, and the random chromosome that changes is in current individual Some data, for example the positional information on some summit is x, y, z, obtains the new quantity current individual.

Second predetermined probabilities can take 0.1.

S312, the first new predetermined number current individual of generation is passed to colony of future generation；

This step is will to obtain the first predetermined number current individual after variation to be passed to colony of future generation, to obtain new the The fitness value of one predetermined number current individual, wait to meet current individual corresponding to required fitness value.

S313, current individual corresponding to the incoming colony of future generation is input in default simulated program, obtained every The fitness value of individual current individual, and the fitness value obtained is present in default set；

Wherein, step S313-S315 is identical with the method that the step S210-S212 in Fig. 3 embodiments is performed respectively.Cause This, all embodiments in Fig. 3 are applied to Fig. 4, and can reach same or analogous beneficial effect, will not be repeated here.

S314, judges whether evolutionary generation is less than predetermined threshold value；If it is, performing S315, performed if it has not, returning S307；

S315, current individual corresponding to the highest fitness value in extraction set, and by two positions of the current individual Target operation region of the parameter as the target reverberation chamber.

As can be seen here, method provided in an embodiment of the present invention passes through in the i.e. built machine of the target reverberant ambiance generated A working region is determined in tool stirring reverberation chamber；Using genetic algorithm optimization working region scope, by two of working region Point coordinates is target generation individual as a chromosome of genetic algorithm, by selecting, matching intersection, mutation operator, is obtained new Generation chromosome is new predetermined number current individual, it is this take excellent natural selection under, the workspace of target reverberation chamber Domain scope can be eventually found under current goal reverberation room environmental towards can more meet that the direction of object function constraints is developed, The optimum range of working region and the optimal field uniform properties of reverberation chamber.

The embodiments of the invention provide working region in the 4th kind of reverberation chamber to determine method by Fig. 5, described applied to client Method includes：

S401, n root transmitting antennas are set in the reverberation room environmental created, and utilize set transmitting antenna in institute State and continue transmission of electromagnetic signals in reverberation room environmental, generate target reverberation room environmental, wherein, the reverberation room environmental includes m Reverberation chamber housing made of step-by-step movement agitator and galvanized steel plain sheet, n and m span are more than or equal to 1, less than 3；

Wherein, step S401-S404 is identical with the method that step S301~S304 in Fig. 4 embodiments is performed respectively.Cause This, all embodiments in Fig. 4 are applied to Fig. 5, and can reach same or analogous beneficial effect, will not be repeated here.

S402, generated target reverberant ambiance is utilized, a working region is determined in the target reverberation room environmental；

S403, it is random to generate the first predetermined number target generation individual, wherein, each target generation individual is identified work Make the location parameter of optional two points in region, the location parameter is the parameter under rectangular coordinate system, and the seat of two points Mark can not be simultaneously in same reference axis；

S404, a rectangular active regions domain is built using the location parameter of described two points, wherein, the rectangular active regions The scope in domain is more than or equal to 1m*1m*1m, less than identified working region；

S405, it is individual for the first predetermined number target generation of reception, in identified working region described in generation Field intensity value corresponding to first predetermined number target generation individual；

Now give an example, example：First, the apex in the rectangular active regions domain of structure places 8 probe collection fields Strong information, the field strength data in 8 x, y, z, three directions are gathered during each stepping, gather 10 groups of data altogether, choose 8 The maximum field strength in individual three directions of summit x, y, z.

S406, using each field intensity value of generation, calculate standard deviation corresponding to each field intensity value；

Based on above-mentioned example, standard deviation is calculated according to following expression；

The expression formula is：Wherein, i x, y or z directions, n are number of probes, E_inFor Maximum field strength of n-th of probe on i directions,For the field strength average value in i directions,

S407, each standard deviation is passed in the fitness value function of following expression, it is default to calculate described first The fitness value of quantity target generation individual；

The expression formula is F=100- (σ_x+σ_y+σ_z+σ_xyz)；

Wherein, F is fitness value, σ corresponding to current individual_x、σ_y、σ_zRespectively predetermined number probe is in x directions, y side To field intensity value, σ corresponding to, z directions_xyzIt is predetermined number probe in resultant field intensity values corresponding to x, y, z direction；

Based on above-mentioned example, the field intensity value in the i directions according to accessed by every probe, 8 are determined by following formula The total intensity average value of root probe；

The expression formula is：

For total intensity average value corresponding to the location parameter of root probe,

Fitness value function is defined as F=100- (σ_x+σ_y+σ_z+σ_xyz)；F=100- (σ i.e. in this example_x+σ_y+σ_z+ σ₂₄)；Therefore, whether F is exactly tended to maximum by the optimization direction of genetic algorithm, reach for appraisal region field uniformity Optimal effectiveness.

S408, using target generation individual as current individual；

Wherein, step S408-S417 is identical with the method that step S306~S315 in Fig. 4 embodiments is performed respectively.Cause This, all embodiments in Fig. 4 are applied to Fig. 5, and can reach same or analogous beneficial effect, will not be repeated here.

S409, the fitness value of each current individual to being obtained are ranked up according to size；

S410, fitness value highest the second predetermined number current individual is directly passed to group of future generation after selected and sorted Body；

S411, the 3rd predetermined number current individual is subjected to random pair, according still further to the first predetermined probabilities to described the Three predetermined number current individuals are intersected using default crossover algorithm, generate the 3rd new predetermined number current individual； Wherein, the 3rd predetermined number is that the first predetermined number subtracts the second predetermined number；

S412, the 3rd new predetermined number current individual of generation is passed to colony of future generation；

S413, for the first predetermined number current individual, default mutation algorithm is utilized according to the second predetermined probabilities Enter row variation, generate the first new predetermined number current individual；

S414, the first new predetermined number current individual of generation is passed to colony of future generation；

S415, current individual corresponding to the incoming colony of future generation is input in default simulated program, obtained every The fitness value of individual current individual, and the fitness value obtained is present in default set；

S416, judges whether evolutionary generation is less than predetermined threshold value；If it is, performing S417, performed if it has not, returning S409；

S417, current individual corresponding to the highest fitness value in extraction set, and by two positions of the current individual Target operation region of the parameter as the target reverberation chamber.

As can be seen here, method provided in an embodiment of the present invention passes through in the i.e. built machine of the target reverberant ambiance generated A working region is determined in tool stirring reverberation chamber；Using genetic algorithm optimization working region scope, by two of working region Point coordinates is that target generation is individual as a chromosome of genetic algorithm, the field uniformity conduct in target reverberation chamber working region A part for fitness function, by selecting, intersecting, mutation operator, obtain chromosome of new generation i.e. new predetermined number and work as Preceding individual, it is this take excellent natural selection under, the working region scope of target reverberation chamber can be towards can more meet object function The direction of constraints is developed, and is eventually found under current goal reverberation room environmental, the optimum range and reverberation chamber of working region Optimal field uniform properties.

Determine that method is corresponding with working region in above-mentioned reverberation chamber, the embodiment of the present application is additionally provided in a kind of reverberation chamber Working region determines to confirm device.

The embodiments of the invention provide a kind of schematic diagram of working region determining device in reverberation chamber, described device bag by Fig. 6 Include：

Target reverberation chamber environment set module 501, for setting n root transmitting antennas in the reverberation room environmental created, And utilize set transmitting antenna to continue transmission of electromagnetic signals in the reverberation room environmental, target reverberation room environmental is generated, Wherein, the reverberation room environmental includes the value model of reverberation chamber housing made of m step-by-step movement agitator and galvanized steel plain sheet, n and m Enclose is more than or equal to 1, less than 3；

The determining module 502 of working region, generated target reverberant ambiance is utilized, in the target reverberation room environmental Determine a working region；

The determining module 503 in target operation region, for being optimized using genetic algorithm to identified working region, Obtain the target operation region of the target reverberation chamber.

Specifically,

The determining module 503 in the target operation region includes：

Wherein, the selection submodule includes：

Described pair of pairing intersects submodule and included：

The variation submodule includes：

First fitness value, which obtains submodule, to be included：

The expression formula is F=100- (σ_x+σ_y+σ_z+σ_xyz)；

As can be seen here, device provided in an embodiment of the present invention in the target reverberant ambiance generated by determining a work Make region；Identified working region is optimized using genetic algorithm, obtains optimal working region i.e. target work Make region, to form uniformity magnetic in the working region of reverberation chamber, EMC characteristics can be tested.

The embodiment of the present invention additionally provides a kind of electronic equipment, as shown in fig. 7, comprises processor 601, communication interface 602, Memory 603 and communication bus 604, wherein, processor 601, communication interface 602, memory 603 is complete by communication bus 604 Into mutual communication,

Memory 603, for depositing computer program；

Processor 601, during for performing the program deposited on memory 603, realize provided in an embodiment of the present invention one Working region determines method in kind reverberation chamber.

Specifically, working region determines method in a kind of above-mentioned reverberation chamber, including：

As can be seen here, the electronic equipment that the present embodiment provides is performed, by being determined in the target reverberant ambiance generated One working region；Identified working region is optimized using genetic algorithm, obtains optimal working region i.e. Target operation region, to form uniformity magnetic in the working region of reverberation chamber, EMC characteristics can be tested.

Working region determines embodiment and the preceding method embodiment part of method in above-mentioned related content reverberation chamber Working region determination mode is identical in the reverberation chamber of offer, repeats no more here.

The communication bus that above-mentioned electronic equipment is mentioned can be Peripheral Component Interconnect standard (Peripheral Component Interconnect, PCI) bus or EISA (Extended Industry Standard Architecture, EISA) bus etc..The communication bus can be divided into address bus, data/address bus, controlling bus etc..For just Only represented in expression, figure with a thick line, it is not intended that an only bus or a type of bus.

The communication that communication interface is used between above-mentioned electronic equipment and other equipment.

Memory can include random access memory (Random Access Memory, RAM), can also include non-easy The property lost memory (Non-Volatile Memory, NVM), for example, at least a magnetic disk storage.Optionally, memory may be used also To be at least one storage device for being located remotely from aforementioned processor.

Above-mentioned processor can be general processor, including central processing unit (Central Processing Unit, CPU), network processing unit (Network Processor, NP) etc.；It can also be digital signal processor (Digital Signal Processing, DSP), it is application specific integrated circuit (Application Specific Integrated Circuit, ASIC), existing It is field programmable gate array (Field-Programmable Gate Array, FPGA) or other PLDs, discrete Door or transistor logic, discrete hardware components.

In another embodiment provided by the invention, a kind of computer-readable recording medium is additionally provided, the computer can Read to be stored with instruction in storage medium, when run on a computer so that computer performs any institute in above-described embodiment Working region determines method in a kind of reverberation chamber stated.

As can be seen here, when performing the application program stored in the computer-readable recording medium that the present embodiment provides, pass through A working region is determined in the target reverberant ambiance generated；Identified working region is carried out using genetic algorithm Optimization, obtains optimal working region i.e. target operation region, to form uniformity magnetic in the working region of reverberation chamber , EMC characteristics can be tested.

In the above-described embodiments, can come wholly or partly by software, hardware, firmware or its any combination real It is existing.When implemented in software, can realize in the form of a computer program product whole or in part.The computer program Product includes one or more computer instructions.When loading on computers and performing the computer program instructions, all or Partly produce according to the flow or function described in the embodiment of the present invention.The computer can be all-purpose computer, special meter Calculation machine, computer network or other programmable devices.The computer instruction can be stored in computer-readable recording medium In, or the transmission from a computer-readable recording medium to another computer-readable recording medium, for example, the computer Instruction can pass through wired (such as coaxial cable, optical fiber, numeral from a web-site, computer, server or data center User's line (DSL)) or wireless (such as infrared, wireless, microwave etc.) mode to another web-site, computer, server or Data center is transmitted.The computer-readable recording medium can be any usable medium that computer can access or It is the data storage devices such as server, the data center integrated comprising one or more usable mediums.The usable medium can be with It is magnetic medium, (for example, floppy disk, hard disk, tape), optical medium (for example, DVD) or semiconductor medium (such as solid state hard disc Solid State Disk (SSD)) etc..

It should be noted that herein, such as first and second or the like relational terms are used merely to a reality Body or operation make a distinction with another entity or operation, and not necessarily require or imply and deposited between these entities or operation In any this actual relation or order.Moreover, term " comprising ", "comprising" or its any other variant are intended to Nonexcludability includes, so that process, method, article or equipment including a series of elements not only will including those Element, but also the other element including being not expressly set out, or it is this process, method, article or equipment also to include Intrinsic key element.In the absence of more restrictions, the key element limited by sentence "including a ...", it is not excluded that Other identical element also be present in process, method, article or equipment including the key element.

Each embodiment in this specification is described by the way of related, identical similar portion between each embodiment Divide mutually referring to what each embodiment stressed is the difference with other embodiment.Especially for method, For device, electronic equipment and computer-readable recording medium embodiment, because it is substantially similar to embodiment of the method, so retouching That states is fairly simple, and the relevent part can refer to the partial explaination of embodiments of method.

The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the scope of the present invention.It is all Any modification, equivalent substitution and improvements made within the spirit and principles in the present invention etc., are all contained in protection scope of the present invention It is interior.

Claims

1. working region determines method in a kind of reverberation chamber, it is characterised in that applied to client, methods described includes：

N root transmitting antennas are set in the reverberation room environmental created, and utilize set transmitting antenna in the reverberation chamber Continue transmission of electromagnetic signals in environment, generate target reverberation room environmental, wherein, the reverberation room environmental stirs including m step-by-step movement Mix reverberation chamber housing made of device and galvanized steel plain sheet, n and m span are more than or equal to 1, less than 3；

Identified working region is optimized using genetic algorithm, obtains the target operation region of the target reverberation chamber.

2. the method as described in claim 1, it is characterised in that described to be carried out using genetic algorithm to identified working region Optimization, the target operation region of the target reverberation chamber is obtained, including：

Random generation the first predetermined number target generation individual, wherein, each target generation individual is in identified working region The location parameter of optional two points, the location parameter is the parameter under rectangular coordinate system, and the coordinate of two points can not be same When in the same reference axis；

A rectangular active regions domain is built using the location parameter of described two points, wherein, the scope in the rectangular active regions domain For more than or equal to 1m*1m*1m, less than identified working region；

The the first predetermined number target generated is input in default simulated program for individual, obtains each target generation individual Fitness value；

Using target generation individual as current individual；

The second predetermined number current individual is selected to be passed to according to predetermined manner from the first predetermined number current individual Colony of future generation；

Pairing intersection is carried out using default crossover algorithm to the 3rd predetermined number current individual, intersects the new of generation by matching The 3rd predetermined number current individual be passed to colony of future generation, wherein, the 3rd predetermined number be the first predetermined number subtract Remove the second predetermined number；

Row variation is entered using default mutation algorithm to the first predetermined number current individual, by newly the of the generation that make a variation One predetermined number current individual is passed to colony of future generation；

Current individual corresponding to the incoming colony of future generation is input in default simulated program, obtains each current individual Fitness value, and the fitness value obtained is present in default set；

If it is, extracting current individual corresponding to the highest fitness value in set, and two positions of the current individual are joined Target operation region of the number as the target reverberation chamber；

Performed if it has not, returning to selecting the second present count according to predetermined manner from the first predetermined number current individual The step of amount current individual is passed to colony of future generation.

3. method as claimed in claim 2, it is characterised in that it is described from the first predetermined number current individual according to Predetermined manner selects the second predetermined number current individual to be passed to colony of future generation, including：

4. method as claimed in claim 2, it is characterised in that described to be handed over using default the 3rd predetermined number current individual Fork algorithm carries out pairing intersection, and the 3rd new predetermined number current individual for matching intersection generation is passed into group of future generation Body, including：

3rd predetermined number current individual is subjected to random pair, according still further to the first predetermined probabilities to the 3rd predetermined number Individual current individual is intersected using default crossover algorithm, generates the 3rd new predetermined number current individual；

5. method as claimed in claim 2, it is characterised in that described to be utilized in advance to the first predetermined number current individual If mutation algorithm enters row variation, the first new predetermined number current individual for the generation that makes a variation is passed to colony of future generation, wrapped Include：

For the first predetermined number current individual, enter row variation using default mutation algorithm according to the second predetermined probabilities, The first new predetermined number current individual of generation；

6. method as claimed in claim 2, it is characterised in that described by the first predetermined number target generated generation individual It is input in default simulated program, obtains the fitness value of each target generation individual, including：

For the first predetermined number target generation individual of reception, first present count is generated in identified working region Field intensity value corresponding to amount target generation individual；

Each standard deviation is passed in the fitness value function of following expression, calculates the first predetermined number target The fitness value of generation individual；

The expression formula is F=100- (σ_x+σ_y+σ_z+σ_xyz)；

Wherein, F is fitness value, σ corresponding to current individual_x、σ_y、σ_zRespectively predetermined number probe is in x directions, y directions, z Field intensity value corresponding to direction, σ_xyzIt is predetermined number probe in resultant field intensity values corresponding to x, y, z direction.

7. working region determining device in a kind of reverberation chamber, it is characterised in that described device includes：

Target reverberation chamber environment set module, for setting n root transmitting antennas in the reverberation room environmental created, and utilize institute The transmitting antenna of setting continues transmission of electromagnetic signals in the reverberation room environmental, generates target reverberation room environmental, wherein, it is described Reverberation room environmental includes reverberation chamber housing made of m step-by-step movement agitator and galvanized steel plain sheet, and n and m span are big In or equal to 1, less than 3；

The determining module of working region, generated target reverberant ambiance is utilized, one is determined in the target reverberation room environmental Individual working region；

The determining module in target operation region, for being optimized using genetic algorithm to identified working region, obtain institute State the target operation region of target reverberation chamber.

8. device as claimed in claim 7, it is characterised in that the determining module in the target operation region includes：

Target generation individual generation submodule, for generating the first predetermined number target generation individual at random, wherein, each target generation Individual is the location parameter of optional two points in identified working region, and the location parameter is the ginseng under rectangular coordinate system Number, and the coordinate of two points can not be simultaneously in same reference axis；

Rectangular active regions domain builds submodule, for building a rectangular active regions domain using the location parameter of described two points, Wherein, the scope in the rectangular active regions domain is more than or equal to 1m*1m*1m, less than identified working region；

First fitness value obtains submodule, default imitative for the generated first predetermined number target to be input to for individual In proper program, the fitness value of each target generation individual is obtained；

Body selects submodule, for selecting the second present count according to predetermined manner from the first predetermined number current individual Amount current individual is passed to colony of future generation；

Pairing intersects submodule, will for carrying out pairing intersection using default crossover algorithm to the 3rd predetermined number current individual The 3rd new predetermined number current individual for matching intersection generation is passed to colony of future generation, wherein, the 3rd present count Measure and subtract the second predetermined number for the first predetermined number；

Make a variation submodule, for entering row variation using default mutation algorithm to the first predetermined number current individual, by institute The first new predetermined number current individual of variation generation is passed to colony of future generation；

Second fitness value calculation submodule, it is default for current individual corresponding to the incoming colony of future generation to be input to In simulated program, the fitness value of each current individual is obtained, and the fitness value obtained is present in default set；

Judging submodule, for judging whether evolutionary generation is less than predetermined threshold value；If it is, triggering extracting sub-module, if it has not, Triggering selection submodule；

The extracting sub-module, for extracting current individual corresponding to the highest fitness value in gathering, and by the current individual Target operation region of two location parameters as the target reverberation chamber.

9. device as claimed in claim 8, it is characterised in that the selection submodule includes：

Highest fitness value unit is selected, it is straight for the second predetermined number of fitness value highest current individual after selected and sorted Meet incoming colony of future generation.

10. device as claimed in claim 8, it is characterised in that described pair of pairing intersects submodule and included：

First generation unit, for the 3rd predetermined number current individual to be carried out into random pair, according still further to the first predetermined probabilities The 3rd predetermined number current individual is intersected using default crossover algorithm, the 3rd new predetermined number is generated and works as Preceding individual；