CN102880743A - WLAN (wireless local area network) drawing design method based on AutoCAD (auto computer aided design) platform - Google Patents

WLAN (wireless local area network) drawing design method based on AutoCAD (auto computer aided design) platform Download PDF

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Publication number
CN102880743A
CN102880743A CN2012103052174A CN201210305217A CN102880743A CN 102880743 A CN102880743 A CN 102880743A CN 2012103052174 A CN2012103052174 A CN 2012103052174A CN 201210305217 A CN201210305217 A CN 201210305217A CN 102880743 A CN102880743 A CN 102880743A
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China
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wlan
design
method based
autocad
coverage
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CN2012103052174A
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田野
尹东彬
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GUANGZHOU TIANYUE ELECTRONIC TECHNOLOGY Co Ltd
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GUANGZHOU TIANYUE ELECTRONIC TECHNOLOGY Co Ltd
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Priority to CN2012103052174A priority Critical patent/CN102880743A/en
Publication of CN102880743A publication Critical patent/CN102880743A/en
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Abstract

The invention discloses a WLAN (wireless local area network) drawing design method based on an AutoCAD (auto computer aided design) platform. The method is characterized by comprising the following steps: step 1, preprocessing data before design; step 2, drawing a WLAN system plan; step 3, automatically drawing a crossing-over map; and step 4, counting crossing-over map materials and outputting tags. With the adoption of the technical scheme, the method has the beneficial effects that various WLAN scheme diagrams can be intelligently configured with accuracy and rapidness by carrying out capacity pre-calculation through a PC (personal computer) and according to a frequency point distribution principle, the power conditions of devices can be displayed in real time, crossing-over maps can be drawn automatically, the working efficiency and accuracy in scheme design of research and development personnel are increased, and the automatic design in WLAN network planning can be accomplished.

Description

A kind of WLAN layout design method based on the AutoCAD platform
Technical field
The present invention relates to the wireless communication field, specifically, relate to a kind of WLAN layout design method based on the AutoCAD platform.
Background technology
Along with day by day popularizing of Internet and being widely used of portable terminal (comprising notebook computer, smart mobile phone, PDA), people increase rapidly the demand of wireless IP access, and WLAN (wireless local area network) (WLAN) obtains using more and more widely.Under the positive input of each operator, the communal facilitys such as airport, station and shopping center have all covered wlan network, and can utilize WLAN to connect the Internet.The advantages such as applying flexible, simple installation, the construction period that relies on wireless access technology itself to have is short, WLAN with cable network, makes up flexible, efficient, perfect broadband network as a kind of high-speed radio access means.But, because a plurality of operators may coexist at areal, if wlan network planning is unreasonable, cause easily between the network the phase mutual interference or because the more design of indoor wall lays AP or day line density are excessively low to cause that field intensity is excessively low, capacity is inadequate, reduced user's experience.
Also do not have now a WLAN design proposal to offer the designer and reasonably plan the WLAN covering method.In the design of WLAN coverage planning, the needing in the layout design process of designer carried out reliable evaluates calculation to each device parameters, the designer in this process according to actual environment and network capacity demand, determine scheme in conjunction with design experiences own again, such assessment objectivity, accuracy are not high, and very high to designer's professional requirement.That workload in the mode of being combined with the indoor distribution method just increases greatly such as covering design.
Summary of the invention
Therefore, the present invention is directed to the existing weak point of above-mentioned prior art, disclose a kind of WLAN layout design method based on the AUTOCAD platform and be used for the design that datumization realizes the WLAN covering method.The design's method has mainly solved the deficiency that prior art exists from independent construction mode and two aspects of shared indoor distribution method construction mode.
The object of the present invention is to provide a kind of method for designing of the WLAN of realization drawing, carry out secondary development at the AutoCAD platform, realize the intelligent design of WLAN scheme, improve user's work efficiency.Technical matters solved by the invention can realize by the following technical solutions:
For achieving the above object, the technical scheme that the present invention proposes is: a kind of WLAN layout design method based on the AUTOCAD platform is characterized in that: may further comprise the steps:
Data pre-service before step 1 design: at first the designer is according to the selected wlan system coverage mode of field condition; Then collect in advance number of users and user rate demand with the target of prediction areal coverage according to the designer, thereby draw the AP quantity in the target coverage scope; Determine the AP type according to coverage mode intelligence at last;
Step 2 is drawn the wlan system planimetric map: at first draw demonstration by step 1 drawn data and automatic screening device blocks out corresponding position on the CAD drawing with former legend piece; Then draw trunk and make between the device blocks and be connected, check that device connection error also calculates line length, the blocks of data of its device is typing when beginning to do piece;
Step 3 is drawn interchange graph automatically: the data that data pre-service and step 2 drafting wlan system planimetric map obtain before at first designing according to step 1 generate the required interchange graph of user; Then according to the frequency point allocation principle, give the frequency of each AP allocation optimization, avoid interference; To sharing the indoor distributed system construction mode, a key calculates the power of antenna at last; Involutory road type coverage mode, the prediction position, combiner insertion point of retrodicting is inserted AP and combiner automatically, optimizes antenna opening WLAN power;
Step 4 interchange graph Material Takeoff and label output: device setting and the result who calculates in real time according to interchange graph, calculate employed type of device in the design of WLAN covering system, the quantity parameter; Output device lay physical location, the convenient construction personnel supervise device and construct.
Further, step 1 is described determines that according to coverage mode intelligence the AP type is at last: according to AP quantity, port type, lay place Location of requirement switch quantity; Select the AC model according to whole net AP quantity;
Further, step 3 is described to sharing the indoor distributed system construction mode, and the power that a key calculates antenna also is provided with the irrational automatic-prompting of antenna power.
Adopt technique scheme, beneficial effect of the present invention is: carry out the capacity predict calculation and configure various WLAN conceptual schemes according to frequency point allocation principle intelligence with PC, have accurate, shortcut function, but real-time display device spare power situation, can automatically draw interchange graph, improve work efficiency and the accuracy of research staff's conceptual design, can finish the Automation Design of wlan network planning.
Description of drawings
Fig. 1 is the inventive method process flow diagram;
Fig. 2 is the planimetric map of drawing under the AUTOCAD platform;
Fig. 3 is the interchange graph of the independent construction mode of WLAN;
Fig. 4 is the interchange graph that intelligence is inserted 8 confessions electricity module;
Fig. 5 is sub-channel allocation synoptic diagram.
Embodiment
Below in conjunction with the drawings and specific embodiments, the present invention will be further described.
Described WLAN layout design method flow synoptic diagram based on the AutoCAD platform of the present invention comprises the steps: as shown in Figure 1
Data pre-service before step 1 design: at first the designer is according to the selected wlan system coverage mode of field condition; Then collect in advance number of users and user rate demand with the target of prediction areal coverage according to the designer, thereby draw the AP quantity in the target coverage scope; Determine the AP type according to coverage mode intelligence at last: according to AP quantity, port type, lay place Location of requirement switch quantity; Select the AC model according to whole net AP quantity;
Step 2 is drawn the wlan system planimetric map: at first draw demonstration by step 1 drawn data and automatic screening device blocks out corresponding position on the CAD drawing with former legend piece; Then draw trunk and make between the device blocks and be connected, check that device connection error also calculates line length, the blocks of data of its device is typing when beginning to do piece;
Step 3 is automatically drawn interchange graph: at first according to data pre-service before step 1 design are connected with step draw data that the wlan system planimetric map obtains generate the required interchange graph of user (for example: generate interchange graph can setup parameter according to AP and switch be to be connected or with the optical fiber connection with category-5 cable apart from automatic decision, the while also can setup parameter judges whether to insert supply module according to category-5 cable length); Then according to the frequency point allocation principle, give the frequency of each AP allocation optimization, avoid interference; To sharing the indoor distributed system construction mode, a key calculates the power of antenna at last, removes the people from for miscount, can also be provided with the irrational automatic-prompting of antenna power; Involutory road type coverage mode, the prediction position, combiner insertion point of retrodicting is inserted AP and combiner automatically, optimizes antenna opening WLAN power;
Step 4 interchange graph Material Takeoff and label output: device setting and the result who calculates in real time according to interchange graph, calculate employed type of device in the design of WLAN covering system, the quantity parameter; Output device lay physical location, the convenient construction personnel supervise device and construct.
Fig. 3 is the interchange graph that automatically generates for the independent construction mode of WLAN.Fig. 4 is the interchange graph that intelligence is inserted 8 confessions electricity module.
Concrete invention thought process of the present invention is as follows:
(1) drawing is optimized employed concrete model and corresponding computing formula: field intensity is calculated used Ma Ennama Tener formula Pr=Pt+Ga-Lj-[32.45+20Lg (H) * 20Lg (D)]-Ld, wherein Pr represents the field intensity of this point, Pt represents antenna delivery outlet level, Ga represents antenna gain, Lj represents diectric attenuation, 32.45+20Lg (H) * 20Lg (D) is free space loss, Ld represents free factor decay;
(2) frequency point allocation principle: 802.11b/g agreement regulation, WLAN working frequency range bandwidth is 83.5MHz, is divided into 14 sub-channels, every sub-channel bandwidth is 22MHz.Sub-channel allocation is as shown in Figure 5: in the situation that a plurality of channels are worked simultaneously, for guaranteeing non-interference between the channel, require the centre frequency interval of two channels can not be lower than 25MHz.In an areal coverage, the direct sequence spread spectrum technology can provide at most 3 nonoverlapping channels to work simultaneously, and the handling capacity up to 33Mbps is provided.Therefore, the frequency point allocation principle is as follows:
1) adopt in principle 3 not overlapping frequencies in the same frequency group to carry out frequency planning;
2) AP of neighboring coverage areas does not use identical frequency.
Although specifically show and introduced the present invention in conjunction with preferred embodiment; but the those skilled in the art should be understood that; within not breaking away from the spirit and scope of the present invention that appended claims limits; in the form and details the present invention is made a variety of changes, be protection scope of the present invention.

Claims (3)

1. WLAN layout design method based on the AUTOCAD platform is characterized in that: may further comprise the steps:
Data pre-service before step 1 design: at first the designer is according to the selected wlan system coverage mode of field condition; Then collect in advance number of users and user rate demand with the target of prediction areal coverage according to the designer, thereby draw the AP quantity in the target coverage scope; Determine the AP type according to coverage mode intelligence at last;
Step 2 is drawn the wlan system planimetric map: at first draw demonstration by step 1 drawn data and automatic screening device blocks out corresponding position on the CAD drawing with former legend piece; Then draw trunk and make between the device blocks and be connected, check that device connection error also calculates line length, the blocks of data of its device is typing when beginning to do piece;
Step 3 is drawn interchange graph automatically: the data that data pre-service and step 2 drafting wlan system planimetric map obtain before at first designing according to step 1 generate the required interchange graph of user; Then according to the frequency point allocation principle, give the frequency of each AP allocation optimization, avoid interference; To sharing the indoor distributed system construction mode, a key calculates the power of antenna at last; Involutory road type coverage mode, the prediction position, combiner insertion point of retrodicting is inserted AP and combiner automatically, optimizes antenna opening WLAN power;
Step 4 interchange graph Material Takeoff and label output: device setting and the result who calculates in real time according to interchange graph, calculate employed type of device in the design of WLAN covering system,
The quantity parameter; Output device lay physical location, the convenient construction personnel supervise device and construct.
2. a kind of WLAN layout design method based on the AUTOCAD platform according to claim 1 is characterized in that: step 1 is described determines that according to coverage mode intelligence the AP type is at last: according to AP quantity, port type, lay place Location of requirement switch quantity; Select the AC model according to whole net AP quantity.
3. a kind of WLAN layout design method based on the AUTOCAD platform according to claim 1, it is characterized in that: step 3 is described to sharing the indoor distributed system construction mode, and the power that a key calculates antenna also is provided with the irrational automatic-prompting of antenna power.
CN2012103052174A 2012-08-24 2012-08-24 WLAN (wireless local area network) drawing design method based on AutoCAD (auto computer aided design) platform Pending CN102880743A (en)

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Publication number Priority date Publication date Assignee Title
CN103729514A (en) * 2014-01-06 2014-04-16 广州天越电子科技有限公司 Method for designing mobile communication network base station
CN106874567A (en) * 2017-01-17 2017-06-20 合肥工业大学 A kind of WLAN project planning Visual Design Systems based on CAD diagram shape
US10142186B2 (en) 2013-12-26 2018-11-27 Tata Consultancy Services Limited System and method for designing a network for one or more entities in an enterprise
CN115086972A (en) * 2022-07-19 2022-09-20 深圳市华曦达科技股份有限公司 Distributed wireless signal quality optimization method and system

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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10142186B2 (en) 2013-12-26 2018-11-27 Tata Consultancy Services Limited System and method for designing a network for one or more entities in an enterprise
CN103729514A (en) * 2014-01-06 2014-04-16 广州天越电子科技有限公司 Method for designing mobile communication network base station
CN106874567A (en) * 2017-01-17 2017-06-20 合肥工业大学 A kind of WLAN project planning Visual Design Systems based on CAD diagram shape
CN115086972A (en) * 2022-07-19 2022-09-20 深圳市华曦达科技股份有限公司 Distributed wireless signal quality optimization method and system

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Application publication date: 20130116