CN102647239B - Test system for information acquisition wireless downlink channel network - Google Patents
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Abstract
The invention discloses a test system for an information acquisition wireless downlink channel network, which comprises a host machine, a concentrator shielding box connected with the host machine, and a plurality of assemblies which include a variable attenuator, a combining network module connected with a radio frequency cable of the variable attenuator, a collector shielding box connected to the radio frequency cable of the combining network module, wherein the assemblies and a route build the hierarchy and the route matched with a wireless network according to the hierarchy of the wireless to be tested, the variable attenuator of the assembly in the first network hierarchy is connected with the concentrator shielding box through the radio frequency cable; the variable attenuator of the assembly below the second network hierarchy is connected to the combining network module of the former hierarchy of the assembly through the radio frequency cable; a connection serial port is arranged the host and the concentrator shielding box; and the host can control the transmission distance of the signals in a radio frequency cable channel in the multi-wireless network hierarchy and route by adjusting attenuation amplitude of the variable attenuator, further adjusting the wireless hierarchy and the route.
Description
Technical field
The present invention relates to network test technical field, specially refer to a kind of information gathering downlink wireless channel network test macro.
Background technology
At present, more national grid information gathering downlink wireless channel network, adopt wireless self-organization network to realize low-voltage electricity user power information and converge, transmit and the communications network functionality such as mutual.
Wireless self-organization network comprises two kinds of communication equipments, is arranged on the global function central apparatus module and the simplification function substation EM equipment module that is arranged on ammeter and collector of concentrator.Between the central apparatus module of concentrator and substation EM equipment module, can communicate by letter; Can forwarding data between the EM equipment module of substation.Wireless self-organization network can form Star Network, tree network or MESH mesh network, and the concrete framework of network is determined by the central apparatus module of concentrator.
Yet, in prior art, the stability of a system and the reliability of whole information gathering downlink wireless channel network are verified, proposing a kind of information gathering downlink wireless channel network test macro of can analog network environment for use whole network being evaluated and tested becomes problem demanding prompt solution.
Summary of the invention
Main purpose of the present invention is for providing a kind of information gathering downlink wireless channel network test macro, stability and the reliability that can test whole network.
The present invention proposes a kind of information gathering downlink wireless channel network test macro, comprising: main frame, the concentrator shielded box being connected with described main frame and a plurality of assembly; Described assembly comprises variable attenuator, the combining network module being connected by radio frequency cable with described variable attenuator, the collector shielded box being connected by radio frequency cable with described combining network module, and the variable attenuator described in each in assembly is connected by described combining network module with concentrator shielded box; Described assembly is connected with route according to the level of wireless network to be tested sets up into level and the route of mating with wireless network, variable attenuator in described assembly in first network level is connected with described concentrator shielded box by radio frequency cable, and the variable attenuator of the described assembly below the second level is connected by the combining network module in the described assembly of radio frequency cable and upper level;
Between described main frame and concentrator shielded box, arrange and be connected serial ports;
Described main frame is by regulating the attenuation amplitude of variable attenuator to control signal in radio frequency cable passage in the level of multistage wireless network and the transmission range in route, and then regulates level and the route of the multistage wireless network of being set up by described assembly.
Preferably, described wireless ad hoc network test comprises:
Networking performance test, business function test, anti-interference and safety test and/or Network Management Function test.
Preferably, described networking performance test can comprise the test of network maximum hop count, coverage distance test and/or propagation delay time test and loss packet test.
Preferably, described business function test can comprise the business function test of checking meter.
Preferably, described anti-interference and safety test can comprise disturbed test mutually between co-channel interference test, adjacent frequency disturbed test and/or multi-system user in system.
Preferably, described main frame is initiated the wireless networking order of concentrator and collector by concentrator, and receives networking result and carry out networking performance test.
Preferably, described main frame regulates wireless network routing relation, the intellectuality of checking wireless network by regulated attenuator attenuation amplitude in networking process.
Preferably, described main frame initiates to check meter order to the concentrator after networking and collector wireless network, obtains the success rate of checking meter.
Preferably, described main frame by regulated attenuator attenuation amplitude, carries out routing function test in the process of checking meter.
Preferably, between described main frame and concentrator shielded box, arrange and be connected serial ports.
Test macro of the present invention can be under relatively pure electromagnetic shielding system, by attenuator, set suitable attenuation amplitude, by radio concentrator module, initiate networking commands, then breath is gathered to the networking effect of downlink wireless channel network and network function and performance and carry out analysis verification and obtain test result.In networking process, more can regulate by attenuator attenuation amplitude is set level and the route of wireless network, further the intellectuality of verification system.Meanwhile, can be according to the level regulating after networking and routing relation, by man-machine interface, to the operation of checking meter of terminal wireless module, check meter continuously and can come verification system reliability and applicability according to the final success rate of checking meter.Can be by setting the check meter reliability of checking wireless transmission routing relation of different attenuation amplitudes.
Accompanying drawing explanation
Fig. 1 is the structural representation of information gathering downlink wireless channel network test macro of the present invention one embodiment.
The realization of the object of the invention, functional characteristics and advantage, in connection with embodiment, are described further with reference to accompanying drawing.
Embodiment
Should be appreciated that specific embodiment described herein, only in order to explain the present invention, is not intended to limit the present invention.
With reference to Fig. 1, the present invention proposes a kind of information gathering downlink wireless channel network test macro one embodiment.This test macro can comprise: main frame 21, the concentrator shielded box 22 being connected with main frame 21, a plurality of assembly; From zoarium, comprise variable attenuator 23, the combining network module 24 being connected by radio frequency cable with variable attenuator 23, the collector shielded box 25 being connected by radio frequency cable 27 with combining network module 24; Therefore, the combining network module in assembly 24 is connected variable attenuator 23 and collector shielded box 25; And this assembly is a plurality of, and according to the level of wireless network to be tested, be connected with route and set up into level and the route of mating with wireless ad hoc network, the variable attenuator 23 of the assembly in first network level is connected with concentrator shielded box 22 by radio frequency cable, and the variable attenuator 23 of the assembly below the second level is connected with the combining network module 24 in upper level assembly by radio frequency cable 27;
Between concentrator shielding device 22 and collector shielding device 25, radio frequency cable passage being set communicates, this main frame 21 can, by regulating the attenuation amplitude of variable attenuator 23 to control the transmission range of radio frequency cable passage to signal, regulate level and the route of the multistage wireless network of being set up by concentrator and collector with this.This main frame 21 is initiated the wireless networking order of concentrator and collector by concentrator, and receives networking result and carry out networking performance test.Between above-mentioned main frame 21 and concentrator shielded box 22, arrange and be connected serial ports 26.Above-mentioned radio frequency cable passage can be radio frequency cable 27; Between above-mentioned concentrator shielded box 22, variable attenuator 23, combining network module 24 and the equipment such as collector shielded box 25, be connected communication, can be undertaken by radio frequency cable 27.
Information gathering downlink wireless channel network test macro in the present embodiment, can be by the on-the-spot environment for use of simulation national grid information gathering downlink wireless channel network, construct multistage (such as 7 grades) route test environment, stability and reliability to whole information gathering downlink wireless channel network are verified, test intuitively whole information gathering wireless network to functions such as the adaptation of environment, transmission of wireless signals and routes.This information gathering downlink wireless channel network is centered by concentrator, to control the wireless information collection network that multistage (such as 6 grades) collector is set up.This information gathering can utilize multistage collector to transfer to concentrator by collector to ammeter terminal, and then uploads electrical network center.
For user-friendly, use and transport, can the integrated a whole set of test macro of design specialized rack.The production code member of this test macro can be FC830.Test macro standard configuration is three racks, and rack adopts the standard cabinet of 19 inches.Wherein, I rack is containing two concentrator shielded box 22(FC830A), a collector shielded box 25(FC830B) and corresponding variable attenuator 23(FC830C) and combining network module 24(FC830D), No. II and III rack are respectively containing 3 collector shielded box 25(FC830B) and variable attenuator 23(FC830C accordingly) and combining network module 24(FC830D).
Above-mentioned main frame 21 can be initiated test, and in test, the miscellaneous equipment in test macro is controlled, and finally can obtain test result.
Above-mentioned concentrator shielded box 22, can have the inhibition over 70dB to the radio signal below 800MHz frequency, relatively pure radio darkroom environment can be provided, and reduces the interference of extraneous radio wave.This concentrator shielded box 22 can arrange induction antenna, serial ports extended line and DC power supply etc.
Above-mentioned variable attenuator 23 can be adjustable radio frequency attenuator, can, by regulating variable attenuator 23 that suitable pad value is set, simulate the transmission attenuation performance of radio signal in actual environment.
Above-mentioned combining network module 24 can realize radiofrequency signal function along separate routes, and by increasing power distribution of work device, every one deck can connect a plurality of shielding test boxs, can realize more massive network verification.
Above-mentioned collector shielded box 25, can have the inhibition over 70dB to the radio signal below 800MHz frequency, relatively pure radio darkroom environment can be provided, and reduces the interference of extraneous radio wave.This collector shielded box 25 can arrange induction antenna, serial ports extended line and DC power supply etc.
Above-mentioned variable attenuator 23, combining network module 24 can form test assembly with collector shielded box 25, in tested information gathering downlink wireless channel network, has how many grades of collectors, test assembly that can relative set equal number.
Test form in the present embodiment can comprise single net simulated behavior test and the test of many nets (such as two) simulated behavior.This list net is the wireless network that a concentrator and multistage collector are set up, and these many nets are a plurality of wireless networks that a plurality of concentrators are set up with multistage collector respectively.
Above-mentioned content measurement can comprise: networking performance test, business function test, anti-interference and safety test and Network Management Function test.The test of this networking performance can comprise: the test of network maximum hop count, coverage distance test (should be respectively sighting distance and two kinds of situations of non line of sight being provided to the relation of distance and bandwidth under fixation case), propagation delay time test and loss packet test etc.This business function test can comprise: the business function test etc. of checking meter.This anti-interference and safety test can comprise: mutual disturbed test and other security test etc. between co-channel interference test in system, adjacent frequency disturbed test, multi-system user.The test of this Network Management Function can comprise: whether support network management function test, every function that it can DCO webmaster.
Above-mentioned network maximum hop count test, the equipment of test comprises main frame 21, concentrator, collector and ammeter etc.This testing procedure is: main frame 21 sends by 26 pairs of concentrators of serial ports the order that wireless network builds; Check the communication module operating state of each equipment; Data can be carried out bidirectional data transfers according to the path regulating, and copy reading is to electric energy meter data; The communication module power-off of intermediate equipment arbitrarily, because path is imperfect, data communication failure.In the present embodiment, when 7 grades of routes of wireless network are complete, can success communication, check meter; In wireless network route, during the communication module power down of any one equipment, communication path is imperfect, communication failure.
Above-mentioned coverage distance test, the equipment of test comprises main frame 21, concentrator, collector and ammeter etc.This testing procedure is: main frame 21 is by 7 grades of routes of software construction; By 26 pairs of concentrators of serial ports, constantly send 7 grades of routing commands of structure; Under open environment (sighting distance) and non-open environment, strengthen gradually 1 grade, 2 grades ... the air line distance of 7 grades of modules; During 7 grades of routes of record, maximum communication coverage.Under open environment (sighting distance), the covering radius of 7 grades of routes, is not less than 4Km; Under non-open environment, coverage is relevant with specific environment, and 7 grades of route covering radiuss are not less than 1Km.
Above-mentioned propagation delay time test and loss packet test, the equipment of test comprises main frame 21, concentrator, a plurality of (such as 10) collector and a plurality of (such as 10) ammeter etc.Concentrator and 10 collectors are from organizing wireless network, and this collector is also corresponding one by one with ammeter.This test is: main frame 21 starts test, statistics every layer of average retardation of wireless network and packet drop.
The above-mentioned business function test of checking meter is specially: main frame 21 is controlled concentrators and carried out meter reading, then with ammeter in numerical value compare, check that whether reading correct; Be no less than altogether 400 copy readings, each copy reading interval is not less than 30 minutes, statistical system copy reading success rate.
Above-mentioned anti-interference and safety test, the equipment of test comprises main frame 21, concentrator, a plurality of (such as 10) collector, a plurality of (such as 10) ammeter and jamming equipment etc.This testing procedure is: start after test, specified node is checked meter; Open jamming equipment, disturb certain frequency of working channel group (co-channel interference in system), whether detection checks meter normal; Open jamming equipment, produce operating frequency group adjacent channel frequency (system is faced interference frequently outward), whether detection checks meter normal.
Above-mentioned Network Management Function test, the equipment of test comprises main frame 21, concentrator, a plurality of (such as 10) collector and a plurality of (such as 10) ammeter etc.This testing procedure is: main frame 21 can be carried out network and divide test, the interpolation of node and deletion management; The test of checking meter; Active reporting test; On-air testing etc.
Above-mentioned test macro can be under relatively pure electromagnetic shielding system, by attenuator, set suitable attenuation amplitude, by radio concentrator module, initiate networking commands, then breath is gathered to the networking effect of downlink wireless channel network and network function and performance and carry out analysis verification and obtain test result.In networking process, more can regulate by attenuator attenuation amplitude is set level and the routing relation of wireless network, the further intellectuality of verification system.Meanwhile, can be according to the level regulating after networking and routing relation, by man-machine interface, to the operation of checking meter of terminal wireless module, check meter continuously and can come verification system reliability and applicability according to the final success rate of checking meter.Can be by setting the check meter reliability of checking wireless transmission routing relation of different attenuation amplitudes.
The foregoing is only the preferred embodiments of the present invention; not thereby limit the scope of the claims of the present invention; every equivalent structure or conversion of equivalent flow process that utilizes specification of the present invention and accompanying drawing content to do; or be directly or indirectly used in other relevant technical fields, be all in like manner included in scope of patent protection of the present invention.
Claims (9)
1. an information gathering downlink wireless channel network test macro, is characterized in that, comprising: main frame, the concentrator shielded box being connected with described main frame and a plurality of assembly; Described assembly comprises variable attenuator, the combining network module being connected by radio frequency cable with described variable attenuator, the collector shielded box being connected by radio frequency cable with described combining network module, and the variable attenuator described in each in assembly is connected by described combining network module with collector shielded box; Described assembly is connected with route according to the level of wireless network to be tested sets up into level and the route of mating with wireless network, variable attenuator in described assembly in first network level is connected with described concentrator shielded box by radio frequency cable, and the variable attenuator of the described assembly below the second level is connected by the combining network module in the described assembly of radio frequency cable and upper level;
Between described main frame and concentrator shielded box, arrange and be connected serial ports;
Described main frame is by regulating the attenuation amplitude of variable attenuator to control signal in radio frequency cable passage in the level of multistage wireless network and the transmission range in route, and then regulates level and the route of the multistage wireless network of being set up by described assembly.
2. information gathering downlink wireless channel network test macro according to claim 1, is characterized in that, the test of described wireless network comprises:
Networking performance test, business function test, anti-interference and safety test and/or Network Management Function test.
3. information gathering downlink wireless channel network test macro according to claim 2, is characterized in that, described networking performance test pack includes network maximum transmitted jumping figure test, coverage distance test and/or propagation delay time test and loss packet test.
4. information gathering downlink wireless channel network test macro according to claim 2, is characterized in that, described business function test comprises the business function test of checking meter.
5. information gathering downlink wireless channel network test macro according to claim 2, is characterized in that, described anti-interference and safety test comprises disturbed test mutually between co-channel interference test, adjacent frequency disturbed test and/or multi-system user in system.
6. information gathering downlink wireless channel network test macro according to claim 2, is characterized in that, described main frame is initiated the wireless networking order of concentrator and collector by concentrator, and receives networking result and carry out networking performance test.
7. information gathering downlink wireless channel network test macro according to claim 6, is characterized in that, described main frame regulates wireless network routing relation, the intellectuality of checking wireless network by regulated attenuator attenuation amplitude in networking process.
8. information gathering downlink wireless channel network test macro according to claim 2, is characterized in that, described main frame initiates to check meter order to the concentrator after networking and collector wireless network, obtains the success rate of checking meter.
9. information gathering downlink wireless channel network test macro according to claim 8, is characterized in that, described main frame by regulated attenuator attenuation amplitude, carries out routing function test in the process of checking meter.
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| CN104955081A (en) * | 2015-07-08 | 2015-09-30 | 中国电力科学研究院 | Programmable attenuation system and method for micro-power wireless communication testing |
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| CN109004957A (en) * | 2018-08-01 | 2018-12-14 | 厦门四联信息技术有限公司 | A kind of power carrier concentrator based on Internet of Things |
| CN109495196B (en) * | 2019-01-03 | 2023-10-10 | 深圳市吉祥腾达科技有限公司 | System and method for testing wireless network bandwidth automatic switching characteristics of MESH product |
| CN113676367A (en) * | 2021-07-10 | 2021-11-19 | 宁夏隆基宁光仪表股份有限公司 | Assembly line detection method, equipment and system for intelligent water meter performance and shielding box |
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| CN201327863Y (en) * | 2008-12-26 | 2009-10-14 | 摩比天线技术（深圳）有限公司 | A mismatching load device and duplexer |
| CN101644753B (en) * | 2009-08-20 | 2011-11-02 | 宁波三星电气股份有限公司 | Debugging method of centralized meter reading system |
| CN101776740B (en) * | 2010-01-19 | 2012-12-26 | 云南电网公司 | Electric energy metering automation simulation laboratory |
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