Wireless static tester
Technical field
The utility model is related to the wireless test field in field of industrial production, more particularly to industrial production, specifically refers to
A kind of wireless static tester.
Background technology
Common wireless static test equipment is usually separate to open shielded box, a wireless network by two
Tester (such as tester of Agilent 4010), RF coaxial switching switch, a host computer composition.After two shielded boxes
Face is respectively designed with " radio frequency coaxial-cable interface, RS232 interfaces, RJ45 network interfaces, power interface " with function of shielding.Two
The radio frequency coaxial-cable interface of shielded box is respectively connected to two groups of inputs of coaxial trigger, the output end of coaxial trigger
Access wireless network tester;Host computer and wireless network tester are directly attached using USB interface (according to being used
Tester difference, it is also possible to use RJ45 network interface connections.);
Tested circuit board is put into the circuit board and shielded box only having in the test process after shielded box in shielded box
Fractional radio frequency's connecting line, Serial Port Line, netting twine etc. under shielding protection, it is other that " wireless network tester, coaxial switching are opened
Pass, test host computer " and all RF coaxial measurement circuits and interface, serial port connecting wire and string connected between them
Mouthful, supply line of netting twine and RJ45 network interfaces, USB connecting lines and its interface and each equipment etc. it is complete all without being taken office
What shielding protection.It is external not wireless by other by the various equipment and circuit of shielding protection more than will necessarily thus existing
The problem of radiofrequency signal is disturbed, if in the case that interference signal is sufficiently strong, the percent of pass of test can degradation, influence production
Efficiency, or even production can not be continued cause off-production accident.And the RF coaxial interface of shielded box, coaxial trigger,
And the shielding properties of the RF coaxial connecting line between them all has certain limitations.This will receive other wireless communications
Number interference while, its own can also reveal certain radio frequency signal, and other neighbouring wireless devices are interfered, from
And have influence on the work of other test equipments or test result.
Analyze and illustrate more than, in several nearer workshops of same workshop or relative distance
If common wireless test apparatus more than many sets, then it can cause very serious to interfere and be disturbed between them
Problem;The equipment of work is more simultaneously will interfere more serious, and the test percent of pass of product will be lower, and original quality does not have
Problematic circuit board is just likely to be determined as defective products by mistake, and significant problem occurs in production efficiency and quality management and control.
This is the intrinsic defect of common wireless static tester, and its own can not solve this problem.
Utility model content
In order to overcome above-mentioned the problems of the prior art, utility model proposes a kind of by whole subsets and whole circuits
And its interface is all wrapped in shielded box, overcome the wireless static tester and its control method of air interference.
Wireless static tester of the present utility model and its control method are specific as follows:
This is wireless static tester, including shielded box, tester and host computer, it is mainly characterized by, described survey
Examination instrument and host computer are placed in described shielded box, and described tester is connected with described host computer.
It is preferred that described wireless static tester also includes a coaxial switch, described coaxial switch has one
Input and two output ends, the output end of described coaxial switch are connected with described tester, described shielding case and bag
Big shielded box and small shielded box are included, the number of described big shielded box is 1, the number of described small shielded box is 2, and institute
Being provided with one in host computer, tester and coaxial switch described in being placed in the big shielded box stated, described small shielded box can
The measurement jig of replacing, described big shielded box is connected by shielding metal connecting plate with described small shielded box.
More preferably, described host computer and described tester are connected by USB port, two of described coaxial switch
Input is connected by radio frequency coaxial-cable with the measurement jig in two described small shielded boxes respectively, the coaxial switch
Output end is connected by radio frequency coaxial-cable with described wireless network tester.
More preferably, the survey in the tester of described big shielded box, host computer, coaxial switch and described small shielded box
Interface on the examination tool shielding metal connecting plate described by being arranged at, which is realized, to be connected, and described interface includes RF coaxial electricity
Cable interface, RS232 interfaces, RJ45 network interfaces and power interface, and described big shielded box rear side is provided with power interface and display
The video interface of device, described host computer is connected by the video interface and video line with a display, and the display
It is placed in outside described big shielded box and small shielded box.
It is particularly preferred that described measurement jig passes through described RS232 interfaces or RJ45 network interfaces and described host computer phase
Connection, and the measurement jig and described tester are same by radio frequency coaxial-cable, described coaxial switch and described radio frequency
Shaft cable interface is connected.
It is preferred that described tester is a wireless network tester.
Using the wireless static tester of this kind of structure, because it is using three Contiuum type shielded boxes, by tester, electricity
Brain server, measurement jig, circuit-under-test plate, radio frequency coaxial cables and interface, coaxial switch, RS232 cables and interface, RJ45 lines
Power cable and interface between cable and interface, shielding line are placed in shielded box, and external interference signal substantially cannot be
Any interference is caused to test equipment and circuit-under-test plate inside into the shielding test device;And the nothing of tested circuit board
Line radiofrequency signal also has no idea to be leaked to outer produces interference in face of other equipment, it is therefore prevented that same workshop is relative
If common wireless test apparatus more than many sets cause very serious mutual in several workshops closer to the distance
Interference and it is disturbed the problem of, and overcome the relatively low product test percent of pass caused by the problem, production efficiency and quality
The problem of management and control.
Brief description of the drawings
Fig. 1 is the wireless static tester positive structure schematic of wireless static tester of the present utility model.
Fig. 2 is the wireless static tester side structure schematic diagram of wireless static tester of the present utility model.
Structural representation when Fig. 3 opens for the small shielded box of wireless static tester of the present utility model.
Fig. 4 is the wireless static tester annexation schematic diagram of wireless static tester of the present utility model.
Reference
1 big shielded box
2 small shielded boxes
3 testers
4 host computers
5 displays
6 coaxial switches
Embodiment
In order to better illustrate the technical solution of the utility model, name specific embodiment and further illustrate.
Fig. 1, Fig. 2, Fig. 3 and Fig. 4 are referred to, this is wireless static tester, including shielded box, tester 3 and computer master
Machine 4, it is mainly characterized by, and described tester 3 and host computer 4 is placed in described shielded box, described shielding case and bag
Big shielded box 1 and small shielded box 2 are included, the number of described big shielded box 1 is 1, the number of described small shielded box 2 is 2,
And place that to be additionally provided with one in described host computer 4, tester 3, and the big shielded box 1 coaxial in described big shielded box 1
Switch 6, described coaxial switch 6 has an input and two output ends, and two inputs of described coaxial switch 6 are distinguished
It is connected by radio frequency coaxial-cable with the replaceable measurement jig of the setting in described two small shielded boxes 2, this is coaxial
Switch 6 is connected with described host computer 4, and the output end of the coaxial switch 6 passes through radio frequency coaxial-cable and described test
Instrument 3 is connected, and described big shielded box 1 is connected by shielding metal connecting plate with described small shielded box 2.
Test in tester 3, host computer 4, coaxial switch 6 and the described small shielded box 3 of described big shielded box 1
Interface on the tool shielding metal connecting plate described by being arranged at, which is realized, to be connected, and described interface includes radio frequency coaxial-cable
Interface, RS232 interfaces, RJ45 network interfaces and power interface, and the described rear side of big shielded box 1 is provided with power interface and display
Video interface, described host computer 4 is connected by the video interface and video line with a display 5, and the display 5
It is placed in outside described big shielded box 1 and small shielded box 2.
In a kind of more preferably embodiment, described host computer 4 and described tester 3 are connected by USB port,
Described measurement jig is connected by described RS232 interfaces or RJ45 network interfaces with described host computer 4, and
The measurement jig passes through radio frequency coaxial-cable, described coaxial switch 6 and described radio frequency coaxial-cable with described tester 3
Interface is connected.
In a kind of embodiment preferably, described tester 3 is a wireless network tester.
In a kind of specific embodiment, described tester is the tester of Agilent 4010, or other wireless networks
Tester.
The utility model and the actual contrast test experimental result of common test device are as follows:
Randomly selected from non-defective unit storehouse and test the 100 pieces of PCBA circuit boards passed through before for contrast experiment, in test device
Powerful signal generator is placed around, the wireless interference signal source consistent with circuit-under-test plate is sent.First using original general
Logical test device is tested, and test result is 10 pieces and passed through that 90 pieces do not pass through, and test percent of pass is only 10%;Then use
The utility model test device is tested this 100 pieces of circuit boards, and test result is that 100 pieces of wholes once pass through, and test is logical
It is 100% to cross rate.The utility model has very important meaning for the various production tests with wireless communication function product
Justice, it can be ensured that production environment wireless signal will not be produced and interfered, is greatly lowered what is produced by wireless signal interference
Erroneous judgement and repetition measurement problem.According to the interpretation of result of actual use contrast, single reduction repetition measurement rate one can effectively improve production effect
Rate more than 30.If serious interference is all taken into account situations such as stopping line, the wireless static test synthesis efficiency of product can be with
Improve 50% or so.This improves production efficiency to radio network product and reduction production cost is significant.
Using the wireless static tester of this kind of structure, because it is using three Contiuum type shielded boxes, by tester 3,
Host computer 4, measurement jig, circuit-under-test plate, radio frequency coaxial cables and interface, coaxial switch 6, RS232 cables and interface,
Power cable and interface between RJ45 cables and interface, shielding line are placed in shielded box, and external interference signal does not have substantially
Any interference may be caused to test equipment and circuit-under-test plate entering inside the shielding test device;And tested circuit
The radio frequency signal of plate also has no idea to be leaked to outer produces interference in face of other equipment, it is therefore prevented that same workshop or
If common wireless test apparatus more than many sets causes very serious in several nearer workshops of person's relative distance
The problem of interfering and be disturbed, and overcome that the product test percent of pass caused by the problem is relatively low, production efficiency
The problem of with quality management and control.
In this description, the utility model is described with reference to its specific embodiment.But it is clear that still can be with
Various modification can be adapted and conversion is without departing from spirit and scope of the present utility model.Therefore, specification and drawings are considered as
It is illustrative and not restrictive.