CN106815991A - Radiofrequency signal multilink analogue means - Google Patents
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Abstract
The present invention relates to a kind of radiofrequency signal multilink analogue means, including concentrator and multiple communication simulation units；Multiple communication simulation units are in turn connected to form multi-layer analog communication links, and each communication simulation unit includes communication cabinet and work(separating device；Electromagnetic shielding dark room is provided with communication cabinet in each communication simulation unit, micropower wireless communication module is provided with electromagnetic shielding dark room；Work(separating device in each communication simulation unit has an input and at least two output ends, one is connected with the micropower wireless communication module signal in the electromagnetic shielding dark room in same level communication simulation unit at least two output ends, and another is connected with the input of the work(separating device in next level communication simulation unit by a programmable attenuator signal at least two output ends；The input of the work(separating device in highest level communication simulation unit is connected to concentrator by a programmable attenuator.The present invention can micropower wireless network links on a large scale simulation.
Description
Technical field
The present invention relates to micropower wireless communication technology field, more particularly to a kind of radiofrequency signal multilink analogue means.
Background technology
The general requirement that the strong intelligent grid of State Grid Corporation of China is built, is to ensure intelligent grid construction specification advance to perfect order, realizes power user power consumption information acquisition system construction " all standing, full collection, control in full ".Low pressure resident's electric energy meter copy reading coverage is most wide, and customer volume is maximum, is the emphasis of realization of goal.
Low pressure kilowatt meter reading-out system is divided to according to communication mode of checking meter two classes：Wired and wireless, major programme has：RS485 kilowatt meter reading-out systems, Low Voltage Power Line Carrier Record System, wireless kilowatt meter reading-out system, mixing kilowatt meter reading-out system, plastic optical fiber kilowatt meter reading-out system.This two major classes kilowatt meter reading-out system has its respective advantage and suitable application area.
In recent years, low voltage power line carrier is checked meter and occupies dominant position, in extensive scene application and copies the general character, and stability and real-time aspect achieve some achievements, but Shortcomings：Low-voltage network environment is complicated, and interference is big, and low voltage power line carrier is difficult to ensure that its stability checked meter.Become the power utilization environment of power supply for many, due to carrier wave crosstalk, carrier meter reading scheme should not be implemented；All standing can not be accomplished for low-density residential buildings such as rural area, the combination areas of city and country, it is necessary to ensure to check meter coverage by trunking scheme apart from limited due to carrier-wave transmission, enforcement difficulty is very big.Low voltage power line carrier speed is low, poor real, it is impossible to meet remote pre-payment, the demand of long-range switching on.
Micropower wireless communication technology can overcome the shortcomings of other communication modes in some application scenarios of checking meter, easy construction, it is not necessary to additionally lay cable, and general workman can easily be installed；Communication is not only restricted to power network characteristic, can easily to being checked meter scheme across Tai Qu, complexity power utilization environment Rapid Implementation；Traffic rate is fast, and real-time is high, convenient to implement the application such as remote pre-payment, long-range switching on.
The communication performance of the terminals such as the electric energy meter or collector of micro power radio communication directly determines meter reading efficiency, therefore, communication performance to the micro power radio communication network of the terminals such as electric energy meter or collector composition needs to be simulated test, and for the test of this extensive micro power radio communication network, need the micro power radio communication link of simulation huge, in the prior art also without the real device for effectively simulating this extensive micro power radio communication link.
The content of the invention
It is a primary object of the present invention to for above-mentioned deficiency of the prior art, there is provided a kind of radiofrequency signal multilink analogue means.
The present invention solves the technical scheme that is used of prior art problem：A kind of radiofrequency signal multilink analogue means, including：
Concentrator；
Multiple communication simulation units, the multiple communication simulation unit is in turn connected to form multi-layer analog communication links, and each described communication simulation unit includes communication cabinet and work(separating device；
Electromagnetic shielding dark room is provided with the communication cabinet in each described communication simulation unit, micropower wireless communication module is provided with the electromagnetic shielding dark room；
The work(separating device in each described communication simulation unit has an input and at least two output ends, one is connected with the micropower wireless communication module signal in the electromagnetic shielding dark room in same level communication simulation unit at least two output end, and another is connected with the input of the work(separating device in next level communication simulation unit by a programmable attenuator signal at least two output end；
The input of the work(separating device in highest level communication simulation unit is connected to the concentrator by programmable attenuator described in.
Preferably, the communication simulation unit is seven, and seven multiple communication simulation units of institute are in turn connected to form seven grades of analog communication links.
Preferably, the multi-layer analog communication links are symmetric links, and the electromagnetic shielding dark room in each described communication cabinet is two；
Each described work(separating device includes the one or two power splitter and the two or two power splitter, wherein, one output end of the one or two power splitter is connected with the micropower wireless communication module signal in an electromagnetic shielding dark room in same level communication simulation unit, and another output end is connected with the input end signal of the two or two power splitter；
One output end of the two or two power splitter is connected with the micropower wireless communication module signal in another electromagnetic shielding dark room in same level communication simulation unit, and another output end is connected with the input of the one or two power splitter in next level communication simulation unit by programmable attenuator signal described in；
The input of the one or two power splitter in highest level communication simulation unit is connected to the concentrator by programmable attenuator described in.
Preferably, the multi-layer analog communication links are asymmetric link, and the electromagnetic shielding dark room in each described communication cabinet is two；
First order communication simulation unit is the highest level communication simulation unit, and the communication cabinet in the first order communication simulation unit is one；
Work(separating device in the first order communication simulation unit includes the one or three power splitter, the input of the one or three power splitter is connected with the concentrator signal, first output end of the one or three power splitter is connected with the micropower wireless communication module signal in an electromagnetic shielding dark room in the first order communication simulation unit, second output end of the one or three power splitter is connected with the micropower wireless communication module signal in another electromagnetic shielding dark room in the first order communication simulation unit, 3rd output end of the one or three power splitter is connected with the input of the work(separating device in the communication simulation unit of the second level by programmable attenuator signal described in.
Preferably, the communication cabinet in second level communication simulation unit is two；
The work(separating device of the second level communication simulation unit includes four power splitters, the three or two power splitter, the four or two power splitter and circulator；
The input of four power splitter as the work(separating device of the second level communication simulation unit input, first output end of four power splitter is connected with the input end signal of the three or two power splitter, second output end of four power splitter is connected with the input end signal of the four or two power splitter, 3rd output end of four power splitter is connected with the first port signal of the circulator, and the 4th output end of four power splitter is connected with the input of the work(separating device in third level communication simulation unit by programmable attenuator signal described in；
One output end of the three or two power splitter is connected with the micropower wireless communication module signal in an electromagnetic shielding dark room in one of communication cabinet described in two, another output end with described in two one of described in communication cabinet in another electromagnetic shielding dark room in micropower wireless communication module signal be connected；
One output end of the four or two power splitter is connected with the micropower wireless communication module signal in an electromagnetic shielding dark room in another in communication cabinet described in two, and another output end is connected with the second port signal in the circulator；3rd port of the circulator is connected with the micropower wireless communication module signal in another electromagnetic shielding dark room described in two described in communication cabinet in another.
Preferably, the communication cabinet in second level communication simulation unit is two；
The work(separating device of the second level communication simulation unit includes four power splitters, the three or two power splitter, the four or two power splitter, isolator and the five or two power splitter；
The input of four power splitter as the work(separating device of the second level communication simulation unit input, first output end of four power splitter is connected with the input end signal of the three or two power splitter, second output end of four power splitter is connected with the input end signal of the four or two power splitter, 3rd output end of four power splitter is connected with the input end signal of the isolator, and the 4th output end of four power splitter is connected with the input of the work(separating device in third level communication simulation unit by programmable attenuator signal described in；
The output end of the isolator is connected with the input end signal of the five or two power splitter；
One output end of the three or two power splitter is connected with the micropower wireless communication module signal in an electromagnetic shielding dark room in one of communication cabinet described in two, another output end with described in two one of described in communication cabinet in another electromagnetic shielding dark room in micropower wireless communication module signal be connected；
One output end of the four or two power splitter is connected with the micropower wireless communication module signal in an electromagnetic shielding dark room in another in communication cabinet described in two, and another output end is connected with the first output end signal in the five or two power splitter；The second output end in five or two power splitter is connected with the micropower wireless communication module signal in another electromagnetic shielding dark room described in two described in communication cabinet in another.
Preferably, communication cabinet is one in third level communication simulation unit, fourth stage communication simulation unit；
The third level communication simulation unit, the work(separating device of fourth stage communication simulation unit include the six or two power splitter and the seven or two power splitter, wherein, first output end of the six or two power splitter is connected with the input of the seven or two power splitter, second output end of the six or two power splitter is connected with the micropower wireless communication module signal in an electromagnetic shielding dark room in the communication cabinet, and the first output end of the seven or two power splitter is connected with the micropower wireless communication module signal in another the described electromagnetic shielding dark room in the communication cabinet；
The input of the six or two power splitter in third level communication simulation unit as the work(separating device in third level communication simulation unit input, the second output end of the seven or two power splitter in third level communication simulation unit is connected with the input end signal of the six or two power splitter of fourth stage communication simulation unit；Second output end of the seven or two power splitter in fourth stage communication simulation unit is connected with the input of the work(separating device of level V communication simulation unit by programmable attenuator signal described in.
Preferably, level V communication simulation unit, the 6th grade of communication simulation unit and communication cabinet is two in the 7th grade of communication simulation unit；
Work(separating device in level V communication simulation unit, the 6th grade of communication simulation unit and the 7th grade of communication simulation unit includes the two or three power splitter, the eight or two power splitter and 92 power splitters；Wherein, the first output end of the two or three power splitter is connected with the input of the eight or two power splitter, and the second output end of the two or three power splitter is connected with the input of the 9th 2 power splitter；Two output ends of the eight or two power splitter be connecteds with the micropower wireless communication module difference signal in two electromagnetic shielding dark rooms in one of communication cabinet described in two respectively, and two output ends of the 9th 2 power splitter are distinguished signal and are connected with the micropower wireless communication module in two electromagnetic shielding dark rooms in communication cabinet described in two in another；
The input of the two or three power splitter in level V communication simulation unit as the work(separating device of level V communication simulation unit input, 3rd output end of the two or three power splitter in level V communication simulation unit is connected with the input of the two or three power splitter in the 6th grade of communication simulation unit by programmable attenuator signal described in, and the 3rd output end of the two or three power splitter in the 6th grade of communication simulation unit is connected with the input of the two or three power splitter in the 7th grade of communication simulation unit by programmable attenuator signal described in.
According to radiofrequency signal multilink analogue means of the present invention, with multiple communication simulation units, each communication simulation unit includes communication cabinet and work(separating device, the radiofrequency signal that work(separating device will can be input into all the way in each communication simulation unit is distributed into multiple-channel output, part output is connected to the micropower wireless communication module in the communication cabinet of current level, and remaining output all the way can connect the input of the work(separating device in the communication simulation unit of next stage, thus, multi-layer analog communication links can be formed, extensive micropower wireless network performance can be realized using the multi-layer analog communication links, the test of the performance of the terminal such as electric energy meter or collector.
Brief description of the drawings
Fig. 1 is the structural representation of one embodiment of the invention radiofrequency signal multilink analogue means；
Fig. 2 is the structural representation of another embodiment of the present invention radiofrequency signal multilink analogue means；
Fig. 3 is the structural representation of another embodiment radiofrequency signal multilink analogue means of the invention.
The realization of the object of the invention, functional characteristics and advantage will be described further referring to the drawings in conjunction with the embodiments.
Specific embodiment
Embodiments of the invention are described below in detail, the example of the embodiment is shown in the drawings, wherein same or similar label represents same or similar element or the element with same or like function from start to finish.Embodiment below with reference to Description of Drawings is exemplary, it is intended to for explaining the present invention, and be not considered as limiting the invention.
In the description of the invention, it will be appreciated that, term " " center ", " longitudinal direction ", " transverse direction ", " length ", " width ", " thickness ", " on ", D score, " preceding ", " afterwards ", " left side ", " right side ", " vertical ", " level ", " top ", " bottom " " interior ", " outward ", " clockwise ", the orientation or position relationship of instructions such as " counterclockwise " are based on orientation shown in the drawings or position relationship, it is for only for ease of the description present invention and simplifies and describes, there must be specific orientation rather than the device or element for indicating or imply meaning, with specific azimuth configuration and operation, therefore it is not considered as limiting the invention.
Additionally, term " first ", " second " are only used for describing purpose, and it is not intended that indicating or implying relative importance or the implicit quantity for indicating indicated technical characteristic.Thus, " first " is defined, one or more this feature can be expressed or be implicitly included to the feature of " second ".In the description of the invention, " multiple " is meant that two or more, unless otherwise expressly limited specifically.
In the present invention, unless otherwise clearly defined and limited, the term such as term " installation ", " connected ", " connection ", " fixation " should be interpreted broadly, for example, it may be being fixedly connected, or being detachably connected, or be integrally connected；Can mechanically connect, or electrically connect；Can be joined directly together, it is also possible to be indirectly connected to by intermediary, can be two connections of element internal.For the ordinary skill in the art, above-mentioned term concrete meaning in the present invention can as the case may be understood.
Referring to figs. 1 to shown in Fig. 3, the embodiment of the invention provides a kind of radiofrequency signal multilink analogue means, including concentrator 10 and multiple communication simulation units.
Specifically, multiple communication simulation units are in turn connected to form multi-layer analog communication links, each communication simulation unit includes communication cabinet 11 and work(separating device.
It is provided with communication cabinet 11 in each communication simulation unit in electromagnetic shielding dark room 12, electromagnetic shielding dark room 12 and is provided with micropower wireless communication module (not shown).
That is, communication cabinet 11 is for placing communication terminal of the storage with micropower wireless communication module, such as electric energy meter, collector etc., and electromagnetic shielding dark room 12 is used to electric energy meter or collector provides relatively pure radio dark room conditions, the interference of extraneous radio wave is reduced, is detected in order to the communication performance to communication terminals such as electric energy meter or collectors.
Work(separating device in each communication simulation unit has an input and at least two output ends, one is connected with the micropower wireless communication module signal in the electromagnetic shielding dark room 12 in same level communication simulation unit at least two output ends, and another is connected with the input of the work(separating device in next level communication simulation unit by the signal of a programmable attenuator 15 at least two output ends.
That is, work(separating device in communication simulation unit will can all the way be input into and be distributed at least two-way output, input all the way extremely connects an output end of work(separating device in last layer level communication simulation unit, and at least in two-way output be at least all the way to be connected to the micropower wireless communication module in level in communication cabinet 11, remaining output all the way is connected to the input of work(separating device in next level communication simulation unit.In this way, being sequentially connected between being capable of achieving levels level communication simulation unit.
It should be noted that, because the communication terminals such as electric energy meter or collector are in practical communication, the signal transmitted between different levels electric energy meter or collector by factors such as site environment, line losses due to being influenceed, therefore there is signal attenuation, therefore, above-mentioned programmable attenuator 15 is connected between adjacent two layers level communication simulation unit, for decaying to the radio frequency transmitted between upper and lower level communication simulation unit, and then simulates the environment of practical communication.Additionally, programmable attenuator 15 can adjust pad value, therefore, it can simulate the communication link under varying environment, different situations.
The input of the work(separating device in highest level communication simulation unit is connected to concentrator 10 by a programmable attenuator 15.That is to say, the communication simulation unit in highest level is connected with the signal of concentrator 10.
It should be noted that, multiple communication simulation units are in turn connected to form multi-layer analog communication links, due to there is downlink communication and uplink communication, in downlink communication, work(separating device is used as power splitter, and multiple-channel output is assigned as that will be input into all the way, and in uplink communication, then work(separating device is used as combiner, is exported all the way for multichannel input to be merged into.
Know as those skilled in the art, power splitter full name power divider, it is a kind of device that input signal energy all the way is divided into two-way or the equal or unequal energy of multiple-channel output, also in turn can all the way exports the synthesis of multiple signals energy, can be now also referred to as combiner.Therefore, the work(separating device in the present invention is construed as in downlink communication as being power splitter, and in uplink communication as combiner.
For example in specific work process, during downlink communication, concentrator 10 will instruct (such as meter reading instruction) to be issued to the work(separating device of highest level, distribute to form multiple-channel output by work(separating device, part output signal therein exports the micropower wireless communication module to communication cabinet in the level 11, remaining output signal all the way exports the input of the work(separating device to next level communication simulation unit, the like, by repeated dispensing, the micropower wireless communication module into each level communication simulation unit may finally be successively transmitted in instruction.And when up, for example after each level communication simulation unit receives meter reading instruction, by the work(separating device transmission in electricity consumption data upper layer level analogue communication unit, each road signal of work(separating device to be merged into continue all the way and thinks that more last layer level analogue communication unit is uploaded, the like, most the electricity consumption data at last in each communication simulation unit is uploaded to concentrator 10.
According to radiofrequency signal multilink analogue means of the present invention, with multiple communication simulation units, each communication simulation unit includes communication cabinet 11 and work(separating device, the radiofrequency signal that work(separating device will can be input into all the way in each communication simulation unit is distributed into multiple-channel output, part output is connected to the micropower wireless communication module in the communication cabinet of current level, and remaining output all the way can connect the input of the work(separating device in the communication simulation unit of next stage, thus, multi-layer analog communication links can be formed, extensive micropower wireless network performance can be realized using the multi-layer analog communication links, the test of the performance of the terminal such as electric energy meter or collector.
Referring to figs. 1 to shown in Fig. 3, in one embodiment of the invention, communication simulation unit is seven, and seven communication simulation units are in turn connected to form seven grades of analog communication links.
In kilowatt meter reading-out system, according to general requirment, micro-power network link is typically limited with seven grades, therefore, in embodiment, being connected using work(separating device by seven communication simulation units can form seven grades of analog communication links, in this way, seven grades of complex communication links can be simulated.
As shown in figure 1, in one particular embodiment of the present invention, multi-layer analog communication links are symmetric links, the electromagnetic shielding dark room in each communication cabinet 11 is two.
Each work(separating device includes the one or two power splitter 13 and the two or two power splitter 14, wherein, one output end of the one or two power splitter 13 is connected with the micropower wireless communication module signal in an electromagnetic shielding dark room 12 in same level communication simulation unit, and another output end is connected with the input end signal of the two or two power splitter 14.
One output end of the two or two power splitter 14 is connected with the micropower wireless communication module signal in another electromagnetic shielding dark room 12 in same level communication simulation unit, and another output end is connected with the input of the one or two power splitter 13 in next level communication simulation unit by the signal of a programmable attenuator 15.
The input of the one or two power splitter 13 in highest level communication simulation unit is connected to concentrator 10 by a programmable attenuator 15.
That is, in the present embodiment, the structure of each communication simulation unit is identical, use two two power splitters (i.e. the one or two power splitter 13 and the two or two power splitter 14), the signal all the way that upper level communication simulation unit is exported is assigned as two-way output by the one or two power splitter 13 therein, it exports a micropower wireless communication module being connected in communication cabinet all the way, and the output of another road is connected to the input of the two or two power splitter 14；It is further divided into two-way by the two or two power splitter 14 again to export, it exports another micropower wireless communication module being connected in communication cabinet 11 all the way, another road output is connected to the input of the one or two power splitter 13 of next level communication simulation unit.In this way, linear link structure can be formed, linear link structure is relatively easy situation in seven grades of routing links, therefore, it is suitable to the simulation to simple symmetric communication link.
Shown in reference picture 2, in another specific embodiment of the invention, multi-layer analog communication links are asymmetric link, and the electromagnetic shielding dark room 12 in each communication cabinet 11 is two.
First order communication simulation unit is highest level communication simulation unit, and the communication cabinet 11 in first order communication simulation unit is one.
Work(separating device in first order communication simulation unit includes the one or three power splitter 16, the input of the one or three power splitter 16 is connected with the signal of concentrator 10, first output end of the one or three power splitter 16 is connected with the micropower wireless communication module signal in an electromagnetic shielding dark room 12 in the first order communication simulation unit, second output end of the one or three power splitter 16 is connected with the micropower wireless communication module signal in another electromagnetic shielding dark room 12 in the first order communication simulation unit, 3rd output end of the one or three power splitter 16 is connected with the input of the work(separating device in the communication simulation unit of the second level by the signal of a programmable attenuator 15.
That is, three power splitters 16 are employed in the first order communication simulation unit signal all the way that upper level communication simulation unit is exported is assigned as the output of three tunnels, two-way therein output is respectively connecting to two micropower wireless communication modules in communication cabinet 11, and last output all the way is connected to the input of the work(separating device of next stage (second level communication simulation unit).
Thus, the instruction that concentrator 10 is issued can be by the tunnels of 16 Fen Wei of the one or three power splitter tri-, and two-way therein exports two micropower wireless communication modules into communication cabinet 11, and then exports all the way to the work(separating device of second level communication simulation unit in addition.
Shown in reference picture 2, in an example of invention, the communication cabinet 11 in the communication simulation unit of the second level can be two.
The work(separating device of second level communication simulation unit can include four power splitters 17, the three or two power splitter 18, the four or two power splitter 19 and circulator 20.
The input of four power splitters 17 as the work(separating device of second level communication simulation unit input, first output end of four power splitters 17 is connected with the input end signal of the three or two power splitter 18, second output end of four power splitters 17 is connected with the input end signal of the four or two power splitter 19,3rd output end of four power splitters 17 is connected with the first port signal of circulator 20, and the 4th output end of four power splitters 17 is connected with the input of the work(separating device in third level communication simulation unit by the signal of a programmable attenuator 15.
The micropower wireless communication module signal in an electromagnetic shielding dark room 12 in one of one output end of the three or two power splitter 18 and two communication cabinets 11 is connected, another output end with one of described in two communication cabinets 11 in another electromagnetic shielding dark room 12 in micropower wireless communication module signal be connected.
One output end of the four or two power splitter 19 is connected with the micropower wireless communication module signal in an electromagnetic shielding dark room 12 in another in two communication cabinets 11, and another output end is connected with the second port signal in circulator 20；3rd port of circulator 20 is connected with the micropower wireless communication module signal in another electromagnetic shielding dark room 12 described in two communication cabinets 11 in another.
That is, second level communication simulation unit is by two communication cabinets 11, one four power splitter 17, two two power splitters 18, 19 and a circulator 20 constitute, wherein, the signal all the way that upper level communication simulation unit (first order communication simulation unit) is exported is assigned as the output of four tunnels by four power splitters 17, first via output therein and the output of the second tunnel are respectively connecting to the three or two power splitter 18 and the four or two power splitter 19, the output of 3rd tunnel is connected to the first port of circulator 20, the output of 4th tunnel is connected to the input of the work(separating device in next stage (third level communication simulation unit).
And the three or two power splitter 18 is again by the first via output distribution two-way output of one or four power splitters 17, it is respectively connecting to the two of communication cabinet 11 micropower wireless communication modules, the second tunnel output of four power splitters 17 is then assigned as two-way output by the four or two power splitter 19, output all the way is connected to a micropower wireless communication module in two 1 communication cabinets 11, and another road output is then connected to the second port of circulator 20, the 3rd port of circulator 20 is connected to another micropower wireless communication module in another described communication cabinet 11 again.
Thus, in the present embodiment, the signal exported in first order communication simulation unit is exported by the tunnels of four power splitters, 17 Fen Wei tetra-, four tunnels output Zhong tri- tunnels correspondence finally exports the corresponding micropower wireless communication module into two communication cabinets 11 respectively by the three or two power splitter 18, the four or two power splitter 19, circulator 20, and another road is exported to next level communication simulation unit.
It should be noted that the present embodiment is the unbalanced link formed using circulator 20.
Shown in reference picture 3, in another example of the invention, the communication cabinet 11 in the communication simulation unit of the second level is two.
The work(separating device of second level communication simulation unit can include four power splitters 17, the three or two power splitter 18, the four or two power splitter 19, the power splitter 27 of isolator 26 and the 5th 2.
The input of four power splitters 17 as the work(separating device of second level communication simulation unit input, first output end of four power splitters 17 is connected with the input end signal of the three or two power splitter 18, second output end of four power splitters 17 is connected with the input end signal of the four or two power splitter 19,3rd output end of four power splitters 17 is connected with the input end signal of isolator 26, and the 4th output end of four power splitters 17 is connected with the input of the work(separating device in third level communication simulation unit by the signal of a programmable attenuator 15.
The output end of isolator 26 is connected with the input end signal of the five or two power splitter 27.
The micropower wireless communication module signal in an electromagnetic shielding dark room 12 in one of one output end of the three or two power splitter 18 and two communication cabinets 11 is connected, another output end with one of described in two communication cabinets 11 in another electromagnetic shielding dark room 12 in micropower wireless communication module signal be connected.
One output end of the four or two power splitter 19 is connected with the micropower wireless communication module signal in an electromagnetic shielding dark room 12 in another in two communication cabinets 11, and another output end is connected with the first output end signal in the five or two power splitter 27；The second output end in five or two power splitter 27 is connected with the micropower wireless communication module signal in another electromagnetic shielding dark room 12 described in two communication cabinets 11 in another.
That is, replacing circulator using isolator 26 and two power splitters 27 (above-mentioned five or two power splitter 27) in the present embodiment from unlike embodiment illustrated in fig. 2 in the present embodiment, unbalanced link can be equally formed.
The signal exported in first order communication simulation unit is exported by the tunnels of four power splitters, 17 Fen Wei tetra-, four tunnels output Zhong tri- tunnels finally export the corresponding micropower wireless communication module into two communication cabinets 11 respectively by the three or two power splitter 18, the four or two power splitter 19, isolator 26, the five or two power splitter 27, and another road is exported to next level communication simulation unit.
Shown in reference picture 2 and Fig. 3, in an example of the invention, communication cabinet 11 is one in third level communication simulation unit, fourth stage communication simulation unit.
Third level communication simulation unit, the work(separating device of fourth stage communication simulation unit may each comprise the six or two power splitter 21 and the seven or two power splitter 22, wherein, first output end of the six or two power splitter 21 is connected with the input of the seven or two power splitter 22, second output end of the six or two power splitter 21 is connected with the micropower wireless communication module signal in an electromagnetic shielding dark room 12 in communication cabinet 11, and the first output end of the seven or two power splitter 22 is connected with the micropower wireless communication module signal in another electromagnetic shielding dark room 12 in communication cabinet 11.
The input of the six or two power splitter 21 in third level communication simulation unit as the work(separating device in third level communication simulation unit input, the second output end of the seven or two power splitter 22 in third level communication simulation unit is connected with the input end signal of the six or two power splitter 21 of fourth stage communication simulation unit；Second output end of the seven or two power splitter 22 in fourth stage communication simulation unit is connected with the input of the work(separating device of level V communication simulation unit by the signal of a programmable attenuator 15.
That is, the signal all the way of second level communication simulation unit output is distributed into two-way and exports by the six or two power splitter 21 in third level communication simulation unit, a micropower wireless communication module in communication cabinet 11 is directly output to all the way, and it is another, export to the seven or two power splitter 22, two-way is further divided into by the seven or two power splitter 22 to export, another micropower wireless communication module gone out all the way into communication cabinet, another road exports the six or two power splitter 21 into fourth stage communication simulation unit.
Similarly, the signal all the way that third level communication simulation unit is exported is distributed into two-way output by the six or two power splitter 21 in fourth stage communication simulation unit, a micropower wireless communication module in communication cabinet 11 is directly output to all the way, and it is another, export to the seven or two power splitter 22, two-way is further divided into by the seven or two power splitter 22 to export, another micropower wireless communication module gone out all the way into communication cabinet 11, another road is exported to level V communication simulation unit.
Shown in reference picture 2 and Fig. 3, in an example of the invention, level V communication simulation unit, the 6th grade of communication simulation unit and communication cabinet 11 is two in the 7th grade of communication simulation unit.
Work(separating device in level V communication simulation unit, the 6th grade of communication simulation unit and the 7th grade of communication simulation unit may each comprise the two or three power splitter 23, the eight or two power splitter 24 and 92 power splitters 25；Wherein, the first output end of the two or three power splitter 23 is connected with the input of the eight or two power splitter 24, and the second output end of the two or three power splitter 23 is connected with the input of the 9th 2 power splitter 25；Two output ends of the eight or two power splitter 24 be connecteds with the micropower wireless communication module difference signal in two electromagnetic shielding dark rooms in one of two communication cabinets 11 respectively, and two output ends of the 9th 2 power splitter 25 are distinguished signal and are connected with the micropower wireless communication module in two electromagnetic shielding dark rooms 12 in two communication cabinets 11 in another.
The input of the two or three power splitter in level V communication simulation unit as the work(separating device of level V communication simulation unit input, 3rd output end of the two or three power splitter 23 in level V communication simulation unit is connected with the input of the two or three power splitter 23 in the 6th grade of communication simulation unit by the signal of a programmable attenuator 15, and the 3rd output end of the two or three power splitter 23 in the 6th grade of communication simulation unit is connected with the input of the two or three power splitter 23 in the 7th grade of communication simulation unit by the signal of a programmable attenuator 15.
That is, the two or three power splitter 23 in level V communication simulation unit distributes the signal all the way that fourth stage communication simulation unit is exported to form the output of three tunnels, two-way in the output of three tunnels distinguishes two power splitter (that is to say above-mentioned eight or two power splitter 24 and the 9th 2 power splitter 25) and is respectively classified into two-way output, and is correspondingly outputting to two micropower wireless communication modules in two communication cabinets 11.Similarly, 6th grade of communication simulation unit is also to first pass through the conversion of the output all the way three tunnels output that three power splitters 23 export level V communication simulation unit, two-way therein is respectively converted into two-way respectively by two two power splitters 24,25 again to export, and then is exported to the corresponding micropower wireless communication module in two communication cabinets.7th grade of communication simulation unit is also to first pass through the conversion of the output all the way three tunnels output that three power splitters 23 export the 6th grade of communication simulation unit, two-way therein is respectively converted into two-way respectively by two two power splitters 24,25 again to export, and then is exported to the corresponding micropower wireless communication module in two communication cabinets 11.
According to radiofrequency signal multilink analogue means of the present invention, with multiple communication simulation units, each communication simulation unit includes communication cabinet and work(separating device, the radiofrequency signal that work(separating device will can be input into all the way in each communication simulation unit is distributed into multiple-channel output, part output is connected to the micropower wireless communication module in the communication cabinet 11 of current level, and remaining output all the way can connect the input of the work(separating device in the communication simulation unit of next stage, thus, multi-layer analog communication links can be formed, extensive micropower wireless network performance can be realized using the multi-layer analog communication links, the test of the performance of the terminal such as electric energy meter or collector.
In the description of this specification, the description of reference term " one embodiment ", " some embodiments ", " example ", " specific example " or " some examples " etc. means that the specific features, structure, material or the feature that are described with reference to the embodiment or example are contained at least one embodiment of the invention or example.In this manual, the schematic representation to above-mentioned term is not necessarily referring to identical embodiment or example.And, the specific features of description, structure, material or feature can in an appropriate manner be combined in one or more any embodiments or example.
Although embodiments of the invention have been shown and described above, it is appreciated that, above-described embodiment is exemplary, it is not considered as limiting the invention, one of ordinary skill in the art can be changed to above-described embodiment, change, replacing and modification within the scope of the invention in the case where principle of the invention and objective is not departed from.
Claims (8)
1. a kind of radiofrequency signal multilink analogue means, it is characterised in that including：
Concentrator；
Multiple communication simulation units, it is logical that the multiple communication simulation unit is in turn connected to form multi-layer simulation
Letter link, each described communication simulation unit includes communication cabinet and work(separating device；
Electromagnetic shielding dark room, the electricity are provided with the communication cabinet in each described communication simulation unit
Magnetic screen is provided with micropower wireless communication module in darkroom；
The work(separating device in each described communication simulation unit has an input and at least two outputs
End, at least two output end one with same level communication simulation unit in electromagnetic shielding dark room
In the connection of micropower wireless communication module signal, another and next layer at least two output end
The input of the work(separating device in level communication simulation unit is connected by a programmable attenuator signal；
The input of the work(separating device in highest level communication simulation unit passes through programmable attenuator described in and connects
It is connected to the concentrator.
2. radiofrequency signal multilink analogue means according to claim 1, it is characterised in that institute
Communication simulation unit is stated for seven, seven communication simulation units are in turn connected to form seven grades of analogue communications
Link.
3. radiofrequency signal multilink analogue means according to claim 1 and 2, it is characterised in that
The multi-layer analog communication links are symmetric links, the electromagnetic shielding in each described communication cabinet
Darkroom is two；
Each described work(separating device includes the one or two power splitter and the two or two power splitter, wherein, described first
In an electromagnetic shielding dark room in one output end and same level communication simulation unit of two power splitters
Micropower wireless communication module signal is connected, and another output end is believed with the input of the two or two power splitter
Number connection；
Another electricity in one output end and same level communication simulation unit of the two or two power splitter
Micropower wireless communication module signal connection in magnetic screen darkroom, another output end communicates with next level
The input of the one or two power splitter in analogue unit carries out signal connection by programmable attenuator described in；
The input of the one or two power splitter in the highest level communication simulation unit is by described in one
Programmable attenuator is connected to the concentrator.
4. radiofrequency signal multilink analogue means according to claim 2, it is characterised in that institute
Multi-layer analog communication links are stated for asymmetric link, the electromagnetic shielding in each described communication cabinet
Darkroom is two；
First order communication simulation unit is the highest level communication simulation unit, the first order communication mould
Communication cabinet in quasi-simple unit is one；
Work(separating device in the first order communication simulation unit includes the one or three power splitter, the described 1st
The input of power splitter is connected with the concentrator signal, the first output end of the one or three power splitter with
Micropower wireless communication module signal in the first order communication simulation unit in an electromagnetic shielding dark room connects
Connect, another electromagnetism in the second output end of the one or three power splitter and the first order communication simulation unit
Micropower wireless communication module signal connection in shielded anechoic chamber, the 3rd output of the one or three power splitter
The input of the work(separating device in end and second level communication simulation unit passes through programmable attenuator signal described in
Connection.
5. radiofrequency signal multilink analogue means according to claim 4, it is characterised in that
Communication cabinet in secondary communications analogue unit is two；
The work(separating device of the second level communication simulation unit includes four power splitters, the three or two power splitter, the
Four or two power splitters and circulator；
The input of four power splitter as the work(separating device of the second level communication simulation unit input
End, the first output end of four power splitter is connected with the input end signal of the three or two power splitter, institute
The second output end for stating four power splitters is connected with the input end signal of the four or two power splitter, four work(
The 3rd output end of device is divided to be connected with the first port signal of the circulator, the 4th of four power splitter the
The input of the work(separating device in output end and third level communication simulation unit passes through programmable attenuator described in
Signal is connected；
An electromagnetism in one output end and one of communication cabinet described in two of the three or two power splitter
Micropower wireless communication module signal connection in shielded anechoic chamber, communication cabinet described in another output end and two
Described in one of in another electromagnetic shielding dark room in micropower wireless communication module signal connection；
One in another in one output end and communication cabinet described in two of the four or two power splitter
Micropower wireless communication module signal connection in electromagnetic shielding dark room, another output end and the circulator
In second port signal connection；3rd port of the circulator is another described in communication cabinet with described in two
Micropower wireless communication module signal connection in another electromagnetic shielding dark room in one.
6. radiofrequency signal multilink analogue means according to claim 4, it is characterised in that
Communication cabinet in secondary communications analogue unit is two；
The work(separating device of the second level communication simulation unit includes four power splitters, the three or two power splitter, the
Four or two power splitters, isolator and the five or two power splitter；
The input of four power splitter as the work(separating device of the second level communication simulation unit input
End, the first output end of four power splitter is connected with the input end signal of the three or two power splitter, institute
The second output end for stating four power splitters is connected with the input end signal of the four or two power splitter, four work(
The 3rd output end of device is divided to be connected with the input end signal of the isolator, the 4th of four power splitter is defeated
The input of the work(separating device gone out in end and third level communication simulation unit passes through programmable attenuator described in be believed
Number connection；
The output end of the isolator is connected with the input end signal of the five or two power splitter；
An electromagnetism in one output end and one of communication cabinet described in two of the three or two power splitter
Micropower wireless communication module signal connection in shielded anechoic chamber, communication cabinet described in another output end and two
Described in one of in another electromagnetic shielding dark room in micropower wireless communication module signal connection；
One in another in one output end and communication cabinet described in two of the four or two power splitter
Micropower wireless communication module signal connection in electromagnetic shielding dark room, another output end and the described 5th 2
The first output end signal connection in power splitter；The second output end and two institutes in five or two power splitter
State described in communication cabinet the micropower wireless communication module in another electromagnetic shielding dark room in another
Signal is connected.
7. the radiofrequency signal multilink analogue means according to claim 5 or 6, it is characterised in that
Communication cabinet is one in third level communication simulation unit, fourth stage communication simulation unit；
The third level communication simulation unit, the work(separating device of fourth stage communication simulation unit include the 6th
Two power splitters and the seven or two power splitter, wherein, the first output end of the six or two power splitter and described
The input connection of seven or two power splitters, second output end and the communication cabinet of the six or two power splitter
In an electromagnetic shielding dark room in micropower wireless communication module signal connection, the described 7th 2
The micro- work(in another described electromagnetic shielding dark room in first output end of power splitter and the communication cabinet
Rate radio communication mold block signal is connected；
The input of the six or two power splitter in third level communication simulation unit is used as third level communication mould
The input of the work(separating device in quasi-simple unit, of the seven or two power splitter in third level communication simulation unit
Two output ends are connected with the input end signal of the six or two power splitter of fourth stage communication simulation unit；The fourth stage
Second output end of the seven or two power splitter in communication simulation unit and the work(of level V communication simulation unit point
The input of device passes through programmable attenuator signal described in and connects.
8. radiofrequency signal multilink analogue means according to claim 7, it is characterised in that
Pyatyi communication simulation unit, the 6th grade of communication simulation unit and communication cabinet in the 7th grade of communication simulation unit
It is two；
In level V communication simulation unit, the 6th grade of communication simulation unit and the 7th grade of communication simulation unit
Work(separating device includes the two or three power splitter, the eight or two power splitter and 92 power splitters；Wherein, described
First output end of two or three power splitters is connected with the input of the eight or two power splitter, the two or three power splitter
The second output end be connected with the input of the 9th 2 power splitter；The two of eight or two power splitter are defeated
Go out end respectively with one of communication cabinet described in two in two electromagnetic shielding dark rooms in micro power radio communication
Module difference signal connection, two output ends of the 9th 2 power splitter are another with communication cabinet described in two
Micropower wireless communication module difference signal connection in two electromagnetic shielding dark rooms in individual；
The input of the two or three power splitter in level V communication simulation unit is used as level V communication simulation list
The input of the work(separating device of unit, the 3rd output of the two or three power splitter in level V communication simulation unit
The input of the two or three power splitter in end and the 6th grade of communication simulation unit passes through programmable attenuator described in
Signal is connected, and the 3rd output end of the two or three power splitter in the 6th grade of communication simulation unit is led to the 7th grade
The input of the two or three power splitter in letter analogue unit passes through programmable attenuator signal described in and connects.
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| CN201510854183.8A CN106815991A (en) | 2015-11-30 | 2015-11-30 | Radiofrequency signal multilink analogue means |
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Application publication date: 20170609 |