CN105578521B - A kind of enclosure space wireless signal coverage area Performance Test System and method - Google Patents

A kind of enclosure space wireless signal coverage area Performance Test System and method Download PDF

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Publication number
CN105578521B
CN105578521B CN201410541736.XA CN201410541736A CN105578521B CN 105578521 B CN105578521 B CN 105578521B CN 201410541736 A CN201410541736 A CN 201410541736A CN 105578521 B CN105578521 B CN 105578521B
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CN
China
Prior art keywords
antenna
receiving end
enclosure space
transmitting terminal
coverage area
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CN201410541736.XA
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Chinese (zh)
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CN105578521A (en
Inventor
章炜
姜烨
魏建明
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中国科学院上海高等研究院
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Priority to CN201410541736.XA priority Critical patent/CN105578521B/en
Publication of CN105578521A publication Critical patent/CN105578521A/en
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Abstract

The present invention provides a kind of enclosure space wireless signal coverage area Performance Test System and method, including including transmitting terminal and receiving end, the transmitting terminal includes signal generator, first antenna, the first feeder line and the first support frame, the signal generator is connected by the first feeder line with first antenna, and the first antenna is lain in a horizontal plane on first support frame;The receiving end includes frequency spectrograph, the second antenna, the second feeder line and the second support frame, the frequency spectrograph is connected by second feeder line with second antenna, second antenna is lain in a horizontal plane on second support frame, wherein, the first antenna of the transmitting terminal and the second antenna of the receiving end are staggered relatively.Enclosure space wireless signal coverage area Performance Test System of the invention and method take double antenna to test shooting method, and accuracy in detection is higher;Using straightway as measurement standard, so that the test of different terrain has same standard, test result is more accurate.

Description

A kind of enclosure space wireless signal coverage area Performance Test System and method

Technical field

The present invention relates to the technical fields of wireless communication, more particularly to a kind of enclosure space wireless signal coverage area It can test macro and method.

Background technique

With the increase of multimedia service and the extensive use of wireless self-networking, wireless network communications system is quickly grown, Application is increasingly rich removable high bandwidth network system in daily life.WiMAX mobile communication system needs in enclosure space Realize high speed, high load capacity upstream signals, while downlink transfer service.Therefore have for the various aspects of performance of wireless network Higher requirement, the superiority and inferiority of COMMUNICATION NETWORK PERFORMANCES are to evaluate the key factor of this system quality.

It constantly improve with the development of communication technology, the method for testing characteristics of network is also varied, General System performance Test includes test etc. during laboratory test, small-scale field testing and actual environment are applied.It is wireless under enclosure space environment Communication network signal coverage area is to reflect the principal element of network performance, current for network signal coverage area performance test More is laboratory test, and cannot carry out good actual test to system.Therefore there is office for improving system performance It is sex-limited.For under the environmental conditions such as different terrain, structure in assessment enclosure space, the coverage area of wireless signal exists certain Difficulty.Therefore a kind of enclosure space wireless signal coverage area Performance Test System can be designed and method is most important.

Summary of the invention

In view of the foregoing deficiencies of prior art, the purpose of the present invention is to provide a kind of enclosure space wireless signals to cover Lid range performance test macro and method can carry out practical net under the environmental conditions such as different terrain, structure in the enclosed space The performance test of network signal cover is opened for the planning of WiMAX mobile communication system universe network, technology in enclosure space Hair, scheme Design provide the foundation to provide a reference.

In order to achieve the above objects and other related objects, the present invention provides a kind of enclosure space wireless signal coverage area Energy test macro, including including transmitting terminal and receiving end, the transmitting terminal includes signal generator, first antenna, the first feeder line With the first support frame, the signal generator is connected by the first feeder line with first antenna, and the first antenna is lain in a horizontal plane in On first support frame;The receiving end includes frequency spectrograph, the second antenna, the second feeder line and the second support frame, the frequency spectrum Instrument is connected by second feeder line with second antenna, and second antenna is lain in a horizontal plane on second support frame, Wherein, the first antenna of the transmitting terminal and the second antenna of the receiving end are staggered relatively.

According to above-mentioned enclosure space wireless signal coverage area Performance Test System, in which: first support frame and Second support frame uses tripod.

According to above-mentioned enclosure space wireless signal coverage area Performance Test System, in which: the transmitting terminal with it is described The erection point of receiving end is respectively positioned at the longitudinal midline of enclosure space ground, and the first antenna of the transmitting terminal and the receiving end The second antenna be located at enclosure space 1/2 height at.

According to above-mentioned enclosure space wireless signal coverage area Performance Test System, in which: the first of the transmitting terminal Antenna and the second antenna of the receiving end use electromagnetic horn.

According to above-mentioned enclosure space wireless signal coverage area Performance Test System, in which: the length of first feeder line Degree is the shortest distance of the signal generator to the first antenna;The length of second feeder line is the frequency spectrograph to institute State the shortest distance of the second antenna.

Meanwhile the present invention also provides a kind of according to any of the above-described enclosure space wireless signal coverage area performance survey The test method of test system comprising following steps:

Step S1, in enclosure space one end, upper random designated length is the straightway of m as a testing standard along longitudinal direction Distance;

Step S2, transmitting terminal is arranged in the starting point of selected boning out section, and the frequency point of adjustment signal generator and initial Signal strength P0

Step S3, receiving end is arranged in the terminal point of selected boning out section, and adjusts the center frequency point and frequency of frequency spectrograph It is wide, wherein the center frequency point of frequency spectrograph and the frequency point of signal generator are identical;

Step S4, the signal strength P that the frequency spectrograph of receiving end receives is recorded1

Step S5, transmitting terminal is arranged in enclosure space original position, and is P by signal generator power setting0

Step S6, receiving end antenna is vertically moved along enclosure space, until the signal strength of spectrum analyzer received With reference signal intensity P1Identical, fixed reception end antenna position simultaneously records transmitting terminal distance d between receiving end at this time1

Step S7, mobile transmitting terminal is to current receiving end position, then mobile receiving end antenna, until receiving end frequency spectrum The signal strength and reference signal intensity P that analyzer receives1It is identical, record transmitting terminal distance d between receiving end at this time2

Step S8, step S7 is repeated, until test scope covers the longitudinal direction of entire enclosure space, obtains different transmitting terminals With receiving end distance d1、d2、d3……dn, i.e., the coverage area of entire enclosure space wireless signal.

According to above-mentioned enclosure space wireless signal coverage area performance test methods, in which: the length m of the straightway It is 300 meters.

According to above-mentioned enclosure space wireless signal coverage area performance test methods, in which: the signal generator Initial signal intensity P0For 13dBm.

As described above, enclosure space wireless signal coverage area Performance Test System of the invention and method, have following The utility model has the advantages that

(1) double antenna is taken to test shooting method, accuracy in detection is higher;

(2) using straightway as measurement standard, so that the test of different terrain has same standard, test result is more quasi- Really.

Detailed description of the invention

Fig. 1 is shown as the structural schematic diagram of enclosure space wireless signal coverage area Performance Test System of the invention;

Fig. 2 is shown as the structural representation of straightway enclosure space wireless signal coverage area Performance Test System of the invention Figure;

Fig. 3 is shown as the structural representation of turning section enclosure space wireless signal coverage area Performance Test System of the invention Figure.

Component label instructions

1 signal generator

2 support frames

3 feeder lines

4 antennas

5 frequency spectrographs

6 support frames

7 feeder lines

8 antennas

Specific embodiment

Illustrate embodiments of the present invention below by way of specific specific example, those skilled in the art can be by this specification Other advantages and efficacy of the present invention can be easily understood for disclosed content.The present invention can also pass through in addition different specific realities The mode of applying is embodied or practiced, the various details in this specification can also based on different viewpoints and application, without departing from Various modifications or alterations are carried out under spirit of the invention.

It should be noted that the basic conception that only the invention is illustrated in a schematic way is illustrated provided in the present embodiment, Then only shown in schema with it is of the invention in related component rather than component count, shape and size when according to actual implementation draw System, when actual implementation kenel, quantity and the ratio of each component can arbitrarily change for one kind, and its assembly layout kenel can also It can be increasingly complex.

As shown in Figure 1, enclosure space wireless signal coverage area Performance Test System of the invention includes transmitting terminal and connects Receiving end.Transmitting terminal includes signal generator 1, support frame 2, feeder line 3 and antenna 4, and signal generator 1 passes through feeder line 3 and 4 phase of antenna Even, antenna 4 is lain in a horizontal plane on support frame 2.Receiving end includes frequency spectrograph 5, support frame 6, feeder line 7 and antenna 8, and frequency spectrograph 5 is logical It crosses feeder line 7 to be connected with antenna 8, antenna 8 is lain in a horizontal plane on support frame 6.Wherein, the antenna 8 of the antenna 4 of transmitting terminal and receiving end It is staggered relatively.

Preferably, enclosure space wireless signal coverage area Performance Test System of the invention further include power supply (in figure not Show), for powering for transmitting terminal and receiving end.Wherein, which can be same power module, while for transmitting terminal and connect Receiving end power supply;It can also two independent power modules, respectively transmitting terminal and receiving end power supply.Wherein, envelope can be used in power supply Close space interior 220V/AC power supply.

Preferably, tripod can be used in support frame.

Preferably, the erection point of transmitting terminal and receiving end is respectively positioned at the longitudinal midline of enclosure space ground, and transmitting terminal Antenna and the antenna of receiving end are located at 1/2 height of enclosure space.

Preferably, electromagnetic horn can be used in the antenna of transmitting terminal and the antenna of receiving end.The length of feeder line is signal The shortest distance of the device/frequency spectrograph to antenna.If feed line length is too long, unnecessary signal can be brought to decay and interfere, after giving Continuous signal processing increases complexity.

Constantly extend it should be noted that the enclosure space of present invention meaning refers to longitudinal, and any place longitudinal cross-section Identical or essentially identical enclosure space.

In a preferred embodiment of the invention, enclosure space is subway tunnel.In covering for subway tunnel wireless signal In lid range performance test macro, transmitting terminal includes N9030A PXA signal generator 1, the bis- horn antennas 1 of HD-70HA10 A, 2 meters of feeder lines one, portable professional tripod 1,220V socket 1 and power supply system;Receiving end include frequency spectrograph 1, 1,2 meters feeder lines one of the bis- horn antennas of HD-70HA10, portable professional tripod 1,220V socket 1 and power supply system System.Wherein, signal generator is connected with electromagnetic horn by feeder line in transmitting terminal.Electromagnetic horn is set up in tripod, it is liftoff away from From being 2 meters, for electromagnetic horn in being horizontally arranged, power supply system is above equipment power supply.Frequency spectrograph and electromagnetic horn are logical in receiving end Feeder line is crossed to be connected.The electromagnetic horn of receiving end is equally set up on tripod, and 2 meters of ground clearance, the electromagnetic horn with transmitting terminal Relative level is placed, and power supply system is above system power supply.It should be noted that since the height of subway tunnel is usually 4-5 Rice, therefore 2 meters are set by the height of antenna, the length of feeder line is also 2 meters.It, can basis when using tripod as support frame The actual height of enclosure space adjusts the height of transmitting terminal and receiving end antenna.

As shown in Fig. 2-Fig. 3, enclosure space wireless signal coverage area performance test methods of the invention use double antenna The mode of penetrating is tested, specifically includes the following steps:

Step S1, in enclosure space one end, upper random designated length is the straightway of m as a testing standard along longitudinal direction Distance.

Specifically, the length m of straightway can be 100 meters, 200 meters or 300 meters etc..Preferably, m is 300 meters.By Test, when m is 300 meters, test performance is optimal.Preferably, selected boning out section is located at enclosure space ground longitudinal central axis line Place.

Step S2, transmitting terminal is arranged in the starting point of selected boning out section, and the frequency point of adjustment signal generator and initial Signal strength P0

Specifically, transmitting terminal is arranged in the starting point of selected boning out section, and adjustment signal generator frequency point is extremely 5.825GHz, signal strength P0=13dBm.

Step S3, receiving end is arranged in the terminal point of selected boning out section, and adjusts the center frequency point and frequency of frequency spectrograph It is wide, wherein the center frequency point of frequency spectrograph and the frequency point of signal generator are identical.

Preferably, the center frequency point for adjusting frequency spectrograph is 5.825GHz, bandwidth 1KHz.

Step S4, the signal strength P that the frequency spectrograph of receiving end receives is recorded1

Step S5, transmitting terminal is arranged in enclosure space original position, and is P by signal generator power setting0

It specifically, is+13dBm by signal generator power setting.

Step S6, receiving end antenna is vertically moved along enclosure space, until the signal strength of spectrum analyzer received With reference signal intensity P1Identical, fixed reception end antenna position simultaneously records transmitting terminal distance d between receiving end at this time1

Step S7, mobile transmitting terminal is to current receiving end position, then mobile receiving end antenna, until receiving end frequency spectrum The signal strength and reference signal intensity P that analyzer receives1It is identical, record transmitting terminal distance d between receiving end at this time2

Step S8, step S7 is repeated, until test scope covers the longitudinal direction of entire enclosure space, obtains different transmitting terminals With receiving end distance d1、d2、d3……dn, i.e., the coverage area of entire enclosure space wireless signal.

In conclusion enclosure space wireless signal coverage area Performance Test System of the invention and method take double antenna Shooting method is tested, accuracy in detection is higher;Using straightway as measurement standard, so that the test of different terrain has together One standard, test result are more accurate.So the present invention effectively overcomes various shortcoming in the prior art and has high industrial Utility value.

The above-described embodiments merely illustrate the principles and effects of the present invention, and is not intended to limit the present invention.It is any ripe The personage for knowing this technology all without departing from the spirit and scope of the present invention, carries out modifications and changes to above-described embodiment.Cause This, institute is complete without departing from the spirit and technical ideas disclosed in the present invention by those of ordinary skill in the art such as At all equivalent modifications or change, should be covered by the claims of the present invention.

Claims (7)

1. a kind of test method of enclosure space wireless signal coverage area Performance Test System, it is characterised in that: the closing Spacing wireless signal cover Performance Test System includes transmitting terminal and receiving end, the transmitting terminal include signal generator, First antenna, the first feeder line and the first support frame, the signal generator are connected by the first feeder line with first antenna, and described the One antenna is lain in a horizontal plane on first support frame;The receiving end includes frequency spectrograph, the second antenna, the second feeder line and second Support frame, the frequency spectrograph are connected by second feeder line with second antenna, and second antenna lies in a horizontal plane in institute It states on the second support frame, wherein the first antenna of the transmitting terminal and the second antenna of the receiving end are staggered relatively;
The test method the following steps are included:
Step S1, in enclosure space one end, upper random designated length is the straightway of m as a testing standard distance along longitudinal direction;
Step S2, transmitting terminal is arranged in the starting point of selected boning out section, and the frequency point and initial signal of adjustment signal generator Intensity P0
Step S3, receiving end is arranged in the terminal point of selected boning out section, and adjusts the center frequency point and bandwidth of frequency spectrograph, In, the center frequency point of frequency spectrograph and the frequency point of signal generator are identical;
Step S4, the signal strength P that the frequency spectrograph of receiving end receives is recorded1
Step S5, transmitting terminal is arranged in enclosure space original position, and is P by signal generator power setting0
Step S6, receiving end antenna is vertically moved along enclosure space, until the signal strength received and base of spectrum analyzer Calibration signal intensity P1Identical, fixed reception end antenna position simultaneously records transmitting terminal distance d between receiving end at this time1
Step S7, mobile transmitting terminal is to current receiving end position, then mobile receiving end antenna, until receiving end spectrum analysis The signal strength and reference signal intensity P that instrument receives1It is identical, record transmitting terminal distance d between receiving end at this time2
Step S8, step S7 is repeated, until test scope covers the longitudinal direction of entire enclosure space, different transmitting terminal is obtained and connects The distance d of receiving end1、d2、d3……dn, i.e., the coverage area of entire enclosure space wireless signal.
2. the test method of enclosure space wireless signal coverage area Performance Test System according to claim 1, special Sign is: the length m of the straightway is 300 meters.
3. the test method of enclosure space wireless signal coverage area Performance Test System according to claim 1, special Sign is: the initial signal intensity P of the signal generator0For 13dBm.
4. the test method of enclosure space wireless signal coverage area Performance Test System according to claim 1, special Sign is: first support frame and second support frame use tripod.
5. the test method of enclosure space wireless signal coverage area Performance Test System according to claim 1, special Sign is: the transmitting terminal and the erection point of the receiving end are respectively positioned at the longitudinal midline of enclosure space ground, and the transmitting Second antenna of the first antenna at end and the receiving end is located at 1/2 height of enclosure space.
6. the test method of enclosure space wireless signal coverage area Performance Test System according to claim 1, special Sign is: the second antenna of the first antenna of the transmitting terminal and the receiving end uses electromagnetic horn.
7. the test method of enclosure space wireless signal coverage area Performance Test System according to claim 1, special Sign is: the length of first feeder line is the shortest distance of the signal generator to the first antenna;Second feedback The length of line is the shortest distance of the frequency spectrograph to second antenna.
CN201410541736.XA 2014-10-14 2014-10-14 A kind of enclosure space wireless signal coverage area Performance Test System and method CN105578521B (en)

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Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20080049650A1 (en) * 2006-08-22 2008-02-28 Coppage Carl M System and method for managing radio frequency windows
CN101833034A (en) * 2010-05-28 2010-09-15 中国科学院自动化研究所 Benchmark test system and method influenced by RFID (Radio Frequency Identification Device) label medium
CN102944780A (en) * 2012-11-06 2013-02-27 西安开容电子技术有限责任公司 Testing method for shielding effectiveness of small-size shielding cavity

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20080049650A1 (en) * 2006-08-22 2008-02-28 Coppage Carl M System and method for managing radio frequency windows
CN101833034A (en) * 2010-05-28 2010-09-15 中国科学院自动化研究所 Benchmark test system and method influenced by RFID (Radio Frequency Identification Device) label medium
CN102944780A (en) * 2012-11-06 2013-02-27 西安开容电子技术有限责任公司 Testing method for shielding effectiveness of small-size shielding cavity

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