CN105300199B - RS-422/485 communication test monitoring device and method for guided missile automatic testing - Google Patents
RS-422/485 communication test monitoring device and method for guided missile automatic testing Download PDFInfo
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Abstract
The invention discloses an RS-422/485 communication test monitoring device and method for guided missile automatic testing, and relates to the field of data monitoring. The device and method which are suitable for the guided missile automatic testing process and used for recording and monitoring RS-422/485 differential signals of a testing system are designed. The RS-422/485 communication test monitoring device is connected between a guided missile and the automatic testing system, and used for collecting signals on a path of data transmission from the guided missile to the automatic testing system. According to the RS-422/485 communication test monitoring device and method, real-time monitoring on transmission data from the guided missile to the automatic testing system and real-time monitoring and storing on the data are carried out in real time; and when the automatic testing system detects that the guided missile has problems, an upper computer calls the data in the device in real time, analyzes the data and judges the positions of faults. The RS-422/485 communication test monitoring device and method are suitable for signal monitoring of other testing systems.
Description
Technical field
The present invention relates to data monitoring field.
Background technology
With the development of automatic missile checkout system technology, automatic test is changed into by traditional manual, semi-automatic test, and from
Dynamic test system also experienced and develops into more compact pxi bus and distributed networking bus from vxi bus.
Auto-Test System substantially increases test speed and execution efficiency, but this kind of highly important quilt for guided missile
For surveying object, it is necessary to assure test system is in normal, correct working condition in test process all the time, in order to avoid to tested
Object brings damage or adverse effect.During actual implementation Missile ATS, often adopt the side of guided missile simulator
Formula, before Auto-Test System is to the test of missile, carries out the consistent self-inspection of flow process, each to check interface, software and hardware etc.
Plant the correctness of working condition it is ensured that the smooth, reliable of test is carried out.
This test before self-inspection mode, though can reduce to a certain extent test risk, lifting test reliability and
Safety, but but cannot avoid completely in test process, effectively record test equipment is especially tested and measured signal
Overall process, even if thus causing test result unqualified, is often difficult to problem quick, that direct positioning is measurand, or
The problem of test equipment, brings great limitation to quick diagnosis, fast failure positioning.
Content of the invention
The purpose of the present invention is during design one kind is applied to automatic missile checkout system, for record and monitoring and test system
Rs422/485 differential signal device and method, the present invention propose for automatic missile checkout system rs-422/485 communication survey
Examination monitoring device and monitoring method.
For the rs-422/485 communication test monitoring device of automatic missile checkout system, it includes rs-422/485 communication module
1st, a/d acquisition module 2, fpga3, ddr memory module 5 and cf card 4；
A/d acquisition module 2, for gathering the monitored path Shang 16 road rs-422/ between equipment under test and test system
16 road rs-422/485 differential signals of collection are carried out after measurement range selection, to 16 road rs-422/485 difference by 485 differential signals
The passage that signal is located carries out decaying/amplifying, and then the signal condition in passage is filtered, meets the defeated of analog-digital converter adc
After entering requirement, the sampling to analogue signal is realized by analog-digital converter adc, the rs-422/485 differential digital letter obtaining after sampling
Number through magnetoelectricity isolation after export；
Rs-422/485 communication module 1, for gathering 2 tunnels on the monitored path between equipment under test and test system
Rs-422 differential signal or 2 road rs-485 differential signals, and the 2 road rs-422 differential signals to collection or 2 road rs-485 difference
Signal carries out Phototube Coupling, and exports rs-422 differential signal after treatment or rs-485 differential signal；
Fpga3, enters for receiving rs-422/485 differential digital signal, rs-422 differential signal or rs-485 differential signal
Row data recombination, for sending the rs-422/485 differential digital signal after restructuring, rs-422 differential signal or rs-485 difference
Signal, for sending synchronous storage control signal and power down storage control signal, is additionally operable to be communicated with extraneous network；
Ddr memory module 5, for the rs-422/485 differential digital signal after storage restructuring in the case of upper electricity, rs-
422 differential signals or rs-485 differential signal；
Cf card 4, for the rs-422/485 differential digital signal after storage restructuring in the case of power down, rs-422 difference
Signal or rs-485 differential signal.
Rs-422/485 communication module 1 include rs-485 receptor 1-1, light-coupled isolation 1-2, rs-422 receptor 1-3 and
Insulating power supply 1-4；
Rs-485 receptor 1-1, for receiving 2 road rs- on the detected path between equipment under test and test system
485 differential signals, and 2 road rs-485 differential signals are sent to light-coupled isolation 1-2；
Rs-422 receptor 1-3, for receiving 2 road rs-422 on the monitored path between equipment under test and test system
Differential signal, and 2 road rs-422 differential signals are sent to light-coupled isolation 1-2；
Light-coupled isolation 1-2, for isolating to 2 road rs-422 differential signals or 2 road rs-485 differential signals, and will be every
From after the function ip core 3-1 to fpga3 for the signal output；
Insulating power supply 1-4, for being powered to light-coupled isolation 1-2.
A/d acquisition module 2 includes electromagnetic screen 2-1, deserializer 2-2, analog-digital converter adc circuit 2-3, signal
Conditioning and filter circuit 2-4 and selective circuit of measuring range 2-5,
Deserializer 2-2, for the monitored path Shang 16 road rs-422/ between equipment under test and test system
485 differential signals input after carrying out serioparallel exchange to selective circuit of measuring range 2-5；
Selective circuit of measuring range 2-5, for the monitored path Shang 16 road rs-422/ between equipment under test and test system
485 differential signals carry out measurement range selection, and the passage that 16 road rs-422/485 differential signals are located sends after carrying out decaying/amplifying
To signal condition and filter circuit 2-4；
Signal condition and filter circuit 2-4, for carrying out the Hou 16 road rs-422/485 difference that decays/amplify in passage
Signal carries out signal condition filtering so as to input after the input requirements of analog-digital converter adc to analog-digital converter adc circuit 2-3；
Analog-digital converter adc circuit 2-3, for completing the sampling to analogue signal, obtains rs-422/485 differential digital
Signal, and send to electromagnetic screen 2-1；
Electromagnetic screen 2-1 is used for rs-422/485 differential digital signal is carried out exporting to function ip core after magnetoelectricity isolation
3-1.
Described fpga3 is included in function ip core 3-1, embedded controller ip core 3-2, network control ip core 3-3 and two
Deposit control ip core 3-4；
Function ip core 3-1, for receiving/sending rs-422/485 differential digital signal, rs-422 differential signal or rs-
485 differential signals；
Embedded controller ip core 3-2, for receive rs-422/485 differential digital signal, rs-422 differential signal or
Rs-485 differential signal carries out data recombination, for sending the rs-422/485 differential digital signal after restructuring, rs-422 difference
Signal or rs-485 differential signal, for sending synchronous storage control signal and power down storage control signal；
One Memory control ip core 3-4, for receiving the rs-422/485 differential digital signal after restructuring, rs-422 difference
Signal or rs-485 differential signal, for receiving synchronous dynamic control signal, and send synchronous storage control signal；
Another Memory control ip core 3-4 is poor for the rs-422/485 differential digital signal after reception restructuring, rs-422
Sub-signal or rs-485 differential signal, for receiving power down control signal, concurrently give away electric storage control signal；
Network controls ip core 3-3 to comprise mac layer module, for carrying out flow-control in a full-duplex mode, realizes mac frame
Transmission/reception, the encapsulation/unpacking of mac frame and mac frame error detection.
For the rs-422/485 communication test monitoring device of automatic missile checkout system, it also includes Ethernet phy chip 6,
For realizing the network service between fpga3 and host computer.
For the rs-422/485 communication test monitoring method of automatic missile checkout system, the method comprises the steps:
For gathering the monitored path Shang 16 road rs-422/485 differential signal between equipment under test and test system, right
Passage after 16 road rs-422/485 differential signals of collection carry out measurement range selection, to 16 road rs-422/485 differential signals places
Carry out decaying/amplifying, then the signal condition in passage is filtered, after meeting the input requirements of analog-digital converter adc, by modulus
Transducer adc realizes the sampling to analogue signal, and the rs-422/485 differential digital signal obtaining after sampling is isolated through magnetoelectricity
The step exporting afterwards；
For gathering 2 road rs-422 differential signals or 2 road rs- on the monitored path between equipment under test and test system
485 differential signals, and Phototube Coupling is carried out to the 2 road rs-422 differential signals or 2 road rs-485 differential signals of collection, and export
Rs-422 differential signal after treatment or the step of rs-485 differential signal；
Carry out data for receiving rs-422/485 differential digital signal, rs-422 differential signal or rs-485 differential signal
The step of restructuring, the step for sending voltage signal, rs-422 differential signal or rs-485 differential signal after restructuring, it is used for
The step sending synchronous storage control signal and power down storage control signal, is additionally operable to the step being communicated with extraneous network；
For upper electricity in the case of storage restructuring after rs-422/485 differential digital signal, rs-422 differential signal or
The step of rs-485 differential signal；
For in the case of power down storage restructuring after rs-422/485 differential digital signal, rs-422 differential signal or
The step of rs-485 differential signal.
Described for gather 2 road rs-422 differential signals on the monitored path between equipment under test and test system or
2 road rs-485 differential signals, and Phototube Coupling is carried out to the 2 road rs-422 differential signals or 2 road rs-485 differential signals of collection,
And export rs-422 differential signal after treatment or the step of rs-485 differential signal includes:
For receiving 2 road rs-485 differential signals on the detected path between equipment under test and test system, and by 2
Road rs-485 differential signal sends to the step of light-coupled isolation 1-2；
For receiving 2 road rs-422 differential signals on the monitored path between equipment under test and test system, and by 2 tunnels
Rs-422 differential signal sends to the step of light-coupled isolation 1-2；
For isolating to 2 road rs-422 differential signals or 2 road rs-485 differential signals, and will be defeated for the signal after isolation
Go out the function ip core 3-1 to fpga3；
Step for being powered to light-coupled isolation 1-2.
Described believes for collecting the monitored path Shang 16 road rs-422/485 difference between equipment under test and test system
Number, 16 road rs-422/485 differential signals of collection are carried out after measurement range selection, 16 road rs-422/485 differential signals are located
Passage carry out decaying/amplifying, then in passage signal condition filter, after meeting the input requirements of analog-digital converter adc,
Sampling to analogue signal is realized by analog-digital converter adc, the rs-422/485 differential digital signal obtaining after sampling is through magnetic
After electric isolution, the step of output includes:
For carrying out to the monitored path Shang 16 road rs-422/485 differential signal between equipment under test and test system
Input after serioparallel exchange to the step of selective circuit of measuring range 2-5；
For carrying out to the monitored path Shang 16 road rs-422/485 differential signal between equipment under test and test system
Measurement range selection, the passage that 16 road rs-422/485 differential signals are located sends to signal condition and filter after carrying out decaying/amplifying
The step of wave circuit 2-4；
For signal condition filtering is carried out to the Hou 16 road rs-422/485 differential signal that carries out in passage decaying/amplify,
Input after the input requirements making its analog-digital converter adc to the step of analog-digital converter adc circuit 2-3；
For completing the sampling to analogue signal, obtain rs-422/485 differential digital signal, and send to magnetoelectricity isolation
The step of device 2-1；
For rs-422/485 differential digital signal is carried out with the step exporting after magnetoelectricity isolation to function ip core 3-1.
Described enters for receiving rs-422/485 differential digital signal, rs-422 differential signal or rs-485 differential signal
The step of row data recombination, for sending the rs-422/485 differential digital signal after restructuring, rs-422 differential signal or rs-
The step of 485 differential signals, the step for sending synchronous storage control signal and power down storage control signal, it is additionally operable to outward
The step that boundary's network is communicated includes:
For receiving/sending rs-422/485 differential digital signal, rs-422 differential signal or rs-485 differential signal
Step；
For carrying out to the rs-422/485 differential digital signal receiving, rs-422 differential signal or rs-485 differential signal
The step of data recombination, for sending the rs-422/485 differential digital signal after restructuring, rs-422 differential signal or rs-485
The step of differential signal, the step for sending synchronous storage control signal and power down storage control signal；
For receiving the rs-422/485 differential digital signal after restructuring, rs-422 differential signal or rs-485 differential signal
Step, for receiving synchronous dynamic control signal, and the step sending synchronous storage control signal；
For receiving the rs-422/485 differential digital signal after restructuring, rs-422 differential signal or rs-485 differential signal
Step, for receiving power down control signal, the step that concurrently gives away electric storage control signal；
For carrying out flow-control in a full-duplex mode, realize the transmission/reception of mac frame, the encapsulation/unpacking of mac frame
And the step of the error detection of mac frame.
Beneficial effect: the rs-422/485 communication test monitoring device for automatic missile checkout system of the present invention connects
Between guided missile and Auto-Test System, for gathering guided missile to the signal on the path of Auto-Test System transmission data, when
Rs-422/485 communication test monitoring device does not collect during signal it was demonstrated that being that guided missile itself goes wrong, and works as rs-422/485
When communication test monitoring device can collect signal, the signal that Auto-Test System is gathered is likely to asking because of its own
, there is the situation of data distortion, and the present invention can be carried out to Auto-Test System transmission data to guided missile in real time in real time in topic
Monitoring, is monitored to data in real time and stores, when Auto-Test System detects guided missile itself existing problems, host computer
The data in rs-422/485 communication test monitoring device can be called in real time, its data is analyzed, the institute of failure judgement
In position, improve diagnosis speed, diagnosis speed improves more than 5%, and can be rapidly performed by fault location.
The present invention is applied to the signal monitoring of other test systems.
Brief description
Fig. 1 is that the principle of the rs-422/485 communication test monitoring device for automatic missile checkout system of the present invention is shown
It is intended to；
Fig. 2 is a kind of physical circuit principle schematic of a/d acquisition module in specific embodiment one；
Fig. 3 is a kind of circuit connecting relation figure of selective circuit of measuring range；
Fig. 4 is a kind of circuit connecting relation figure of rs-422/485 communication module；
Fig. 5 is the fundamental diagram of rs-422/485 communication module；
Reference 2-1 represents magnetoelectricity isolation circuit, and 2-2 represents deserializer, and 2-3 represents analog-digital converter adc, 2-
4 represent signal condition and filter circuit, and 2-5 represents selective circuit of measuring range, 8 expression dc/dc modules；
Reference 1-1 represents that rs-485 receptor, 1-2 represent that light-coupled isolation, 1-3 represent rs-422 receptor, 1-4 table
Show insulating power supply；
Reference 3-1 represents that function ip core, 3-2 represent that embedded controller ip core, 3-3 represent that network controls ip core, 1-4
Represent Memory control ip core.
Specific embodiment
Specific embodiment one, illustrate present embodiment referring to figs. 1 to 5, described in present embodiment for guided missile
Automatically the rs-422/485 communication test monitoring device of test, it include rs-422/485 communication module 1, a/d acquisition module 2,
Fpga3, ddr memory module 5 and cf card 4；
A/d acquisition module 2, for gathering the monitored path Shang 16 road rs-422/ between equipment under test and test system
16 road rs-422/485 differential signals of collection are carried out after measurement range selection, to 16 road rs-422/485 difference by 485 differential signals
The passage that signal is located carries out decaying/amplifying, and then the signal condition in passage is filtered, meets the defeated of analog-digital converter adc
After entering requirement, the sampling to analogue signal is realized by analog-digital converter adc, the rs-422/485 differential digital letter obtaining after sampling
Number through magnetoelectricity isolation after export；
Rs-422/485 communication module 1, for gathering 2 tunnels on the monitored path between equipment under test and test system
Rs-422 differential signal or 2 road rs-485 differential signals, and the 2 road rs-422 differential signals to collection or 2 road rs-485 difference
Signal carries out Phototube Coupling, and exports rs-422 differential signal after treatment or rs-485 differential signal；
Fpga3, enters for receiving rs-422/485 differential digital signal, rs-422 differential signal or rs-485 differential signal
Row data recombination, for sending the rs-422/485 differential digital signal after restructuring, rs-422 differential signal or rs-485 difference
Signal, for sending synchronous storage control signal and power down storage control signal, is additionally operable to be communicated with extraneous network；
Ddr memory module 5, for the rs-422/485 differential digital signal after storage restructuring in the case of upper electricity, rs-
422 differential signals or rs-485 differential signal；
Cf card 4, for the rs-422/485 differential digital signal after storage restructuring in the case of power down, rs-422 difference
Signal or rs-485 differential signal.
In present embodiment, rs-422/485 communication module 1 and a/d acquisition module 2 can be simultaneously using it is also possible to separate
Use, rs-422/485 communication module 1 is used for gathering the analogue signal of rs-422/485 differential signal；A/d acquisition module 2 is used for
The digital signal of the differential signal of collection rs-422/485.Simply when subsequently judging whether signal is complete or correct, employing
Judgment mode is different, and a kind of is the judgement to analogue signal, and another kind is the judgement to digital signal.But the function of the two is
Identical.
The function that a/d acquisition module is mainly realized is to realize 16 parallel voltage signal are carried out continuously of Channel Synchronous
Collection.Input analogue signal first passes around measurement range selection, and signalling channel is carried out decaying/amplifying, and is then passed through conditioning filtering, full
After the input requirements of sufficient adc, the sampling to analogue signal is realized by adc, the signal after sampling is input to after magnetoelectricity isolation
In fpga3, after the restructuring by the complete paired data of fpga3, store data in ddr memory module 5 internal memory.
The design of the design of the control unit of a/d acquisition module 2 and memory element control is realized by fpga3.Due to Fig. 2
In each passage powered using single dc-dc module 8, and the control signal of adc, the control of data signal and measurement range selection
Signal processed is all isolated with controlling fpga3, so what each interchannel was galvanically isolated, thus ensure that input signal
Isolation.
In Fig. 3, selective circuit of measuring range 2-5 realizes to the decay of input signal and amplification, and selective circuit of measuring range 2-5 is by decaying
Circuit and programmable instrument amplifier ad8253 composition.Attenuator circuit is formed by r11, r9 and r12, the resistance of r11 is 200k ω, r9
Resistance be 200k ω, the resistance of r12 is 800k ω, and whole input impedance is 1200k ω, and the input impedance more than 1m ω will
Ask, and dividing ratios are fixing 2/3.The scope of input signal is -15v～+15v, instrumentation amplifier ad8253 after partial pressure
Input range is -10v～+10v, meets the requirement of its input range.The amplification of instrumentation amplifier ad8253 can pass through a0
Program control with a1, user can freely select 1 according to the scope of input signal ×, 10 ×, 100 × and 1000 × times magnification
Number.
The voltage signal that signal condition and filter circuit 2-4 export to selective circuit of measuring range 2-5 (ad8253) is nursed one's health
And filtering, it is allowed to meet the requirement of the input range 0～2.5v of analog-digital converter adc2-3.Signal condition and filter circuit adopt
High-precision high-speed operational amplifier ad8021.
Flash memory module within cf card applies nand flash mostly as storage medium, nand flash capacity
Greatly, low cost, can reach higher data access speed.
Three kinds of mode of operations: (1) pc card i/o pattern supported by cf card；(2) pc card memory pattern and (3)
True ide (integrated device electronics) pattern.Wherein pc card pattern complies fully with pc machine storage card
International federation pcmcia (personal computer memory card international association) assists
View, true ide pattern then meets ata/ide agreement.
The selection of pc card pattern and true ide pattern is selected by the 9th foot ata-sel.After upper electricity, if this pin
For high level, cf card enters pc card pattern, if low level, then enters true ide pattern.When cf card is operated in pc
Under card pattern, pc card memory pattern or pc card i/o mould can be entered by the configuration register within modification
Formula.
In three of the above mode of operation, the hardware circuit under true ide pattern is the simplest, only need to use 3 address wires
A [2:0], remaining 8 address wire a [10:3] ground connection.Under true ide pattern, the control logic also more letter of cf card
Single, when under cf card work with this pattern, the agreement of pcmcia pc card and configuration are all disabled, and user need not configure
Memory depositor in pcmcia agreement or attribute depositor, only need to access 8 task by 3 address wires
File depositor can achieve the control to cf card.Because under true ide pattern, cf card circuit is simple, easy to control, in design
Cf card is configured to the access that true ide pattern carries out data.
When having three kinds of data-transmission modes under cf card entrance true ide mode of operation after upper electricity, respectively pio pattern,
Multiword dma pattern and ultra dma pattern.In three of the above pattern, data transmission bauds under ultra dma pattern
The fastest.Under pio and multiword dma pattern, point under data access speed pio-6 and multiword dma-4 the fastest
Peak speed is 25mb/s, and average access speed has differences according to the difference of each production firm.Under ultra dma pattern
The spikes in speed of ultra dma-4, ultra dma-5 and ultra dma-6 is respectively 66mb/s, 100mb/s and 133mb/s,
The cf card average transmission speed that different businessmans produce is also different.
When peripheral control unit and cf card carry out data transmission, the sector number applying for read/write every time to cf card is in 1 to 256 fans
Between area.The sector number of single request for data transmission is bigger, and the utilization rate of cf card data/address bus is higher, and data transmission bauds is also
Faster.
Specific embodiment two: present embodiment, present embodiment and specific embodiment one are described referring to Fig. 4 and Fig. 5
The difference of the described rs-422/485 communication test monitoring device for automatic missile checkout system is, rs-422/485 communication mould
Block 1 includes rs-485 receptor 1-1, light-coupled isolation 1-2, rs-422 receptor 1-3 and insulating power supply 1-4；
Rs-485 receptor 1-1, for receiving 2 road rs- on the detected path between equipment under test and test system
485 differential signals, and 2 road rs-485 differential signals are sent to light-coupled isolation 1-2；
Rs-422 receptor 1-3, for receiving 2 road rs-422 on the monitored path between equipment under test and test system
Differential signal, and 2 road rs-422 differential signals are sent to light-coupled isolation 1-2；
Light-coupled isolation 1-2, for isolating to 2 road rs-422 differential signals or 2 road rs-485 differential signals, and will be every
From after the function ip core 3-1 to fpga3 for the signal output；
Insulating power supply 1-4, for being powered to light-coupled isolation 1-2.
2 road rs-422 differential signals or 2 in present embodiment, on the monitored path between equipment under test and test system
Rs-485 differential signal corresponding rs-422 receptor 1-3 or rs-485 sending to rs-422/485 communication module 1 in road receives
Rs-422 differential signal or rs-485 differential signal are sent out by device 1-1, rs-422 receptor 1-3 or rs-485 receptor 1-1 respectively
Deliver to light-coupled isolation 1-2 to be isolated, after isolation, again the signal after isolation is sent the function ip core 3-1 to fpga3, function
Ip core is processed.
Fig. 5 is the fundamental diagram of rs422/485 communication module 1, in the present invention, is served only for receiving.In Fig. 5, fpga sends out
Send data, after sending light-coupled isolation, meet rs-422's and rs-485 by rs-422 driver and the output of rs-485 driver
The signal of level standard, after receiving satisfactory signal, gives reception optocoupler by rs422 receptor and rs485 receptor
Isolated, be ultimately feeding to the interpretation that fpga carries out data.
Rs-422 works for full duplex, and rs-485 works in a half-duplex mode, needs the anode of holding wire and bears
End carries out short circuit, that is, send and receive using a data passage.
Specific embodiment three: present embodiment, present embodiment and specific embodiment one are described referring to Fig. 2 and Fig. 3
The difference of the described rs-422/485 communication test monitoring device for automatic missile checkout system is,
A/d acquisition module 2 includes electromagnetic screen 2-1, deserializer 2-2, analog-digital converter adc circuit 2-3, signal
Conditioning and filter circuit 2-4 and selective circuit of measuring range 2-5,
Deserializer 2-2, for the monitored path Shang 16 road rs-422/ between equipment under test and test system
485 differential signals input after carrying out serioparallel exchange to selective circuit of measuring range 2-5；
Selective circuit of measuring range 2-5, for the monitored path Shang 16 road rs-422/ between equipment under test and test system
485 differential signals carry out measurement range selection, and the passage that 16 road rs-422/485 differential signals are located sends after carrying out decaying/amplifying
To signal condition and filter circuit 2-4；
Signal condition and filter circuit 2-4, for carrying out the Hou 16 road rs-422/485 difference that decays/amplify in passage
Signal carries out signal condition filtering so as to input after the input requirements of analog-digital converter adc to analog-digital converter adc circuit 2-3；
Analog-digital converter adc circuit 2-3, for completing the sampling to analogue signal, obtains rs-422/485 differential digital
Signal, and send to electromagnetic screen 2-1；
Electromagnetic screen 2-1 is used for rs-422/485 differential digital signal is carried out exporting to function ip core after magnetoelectricity isolation
3-1.
In present embodiment, a/d acquisition module, monitored path Shang 16 tunnel between collection equipment under test and test system
16 road rs-422/485 differential digital signal of collection are carried out after measurement range selection, to 16 by rs-422/485 differential digital signal
The passage that road rs-422/485 differential digital signal is located carries out decaying/amplifying, and then the signal condition in passage is filtered, full
After the input requirements of sufficient analog-digital converter adc, the sampling to analogue signal is realized by analog-digital converter adc, obtain after sampling
Voltage digital signal exports after magnetoelectricity isolation.
Specific embodiment four: present embodiment, present embodiment and specific embodiment one institute are described referring to Fig. 1 to 4
The difference of the rs-422/485 communication test monitoring device for automatic missile checkout system stated is, described fpga3 includes work(
Can ip core 3-1, embedded controller ip core 3-2, network control ip core 3-3 and two Memory control ip core 3-4；
Function ip core 3-1, for receiving/sending rs-422/485 differential digital signal, rs-422 differential signal or rs-
485 differential signals；
Embedded controller ip core 3-2, for receive rs-422/485 differential digital signal, rs-422 differential signal or
Rs-485 differential signal carries out data recombination, for sending the rs-422/485 differential digital signal after restructuring, rs-422 difference
Signal or rs-485 differential signal, for sending synchronous storage control signal and power down storage control signal；
One Memory control ip core 3-4, for receiving the rs-422/485 differential digital signal after restructuring, rs-422 difference
Signal or rs-485 differential signal, for receiving synchronous dynamic control signal, and send synchronous storage control signal；
Another Memory control ip core 3-4 is poor for the rs-422/485 differential digital signal after reception restructuring, rs-422
Sub-signal or rs-485 differential signal, for receiving power down control signal, concurrently give away electric storage control signal；
Network controls ip core 3-3 to comprise mac layer module, for carrying out flow-control in a full-duplex mode, realizes mac frame
Transmission/reception, the encapsulation/unpacking of mac frame and mac frame error detection.
In present embodiment, fpga receives rs-422/485 differential digital signal, rs-422 differential signal or 2 road rs-485
Differential signal carries out data recombination, sends the rs-422/485 differential digital signal after restructuring, rs-422 differential signal or 2 tunnels
Rs-485 differential signal, sends synchronous storage control signal and power down storage control signal, is additionally operable to be led to extraneous network
Letter.
Mac layer module mainly executes flow-control in a full-duplex mode, and mac frame is realized sending and receiving function, its
Primary operational has encapsulation and unpacking and the error detection of mac frame, directly provides the parallel data of external physical layer device
Interface (mii interface), physical layer process directly utilizes technical grade phy device.
Specific embodiment five: present embodiment, present embodiment and specific embodiment three institute are described referring to Fig. 1 to 5
The difference of the rs-422/485 communication test monitoring device for automatic missile checkout system stated is, described rs-422 difference is believed
Number and rs-485 differential signal be with/Asynchronous Reception.
Specific embodiment six: present embodiment, present embodiment and specific embodiment three institute are described referring to Fig. 1 to 5
The difference of the rs-422/485 communication test monitoring device for automatic missile checkout system stated is, it also includes Ethernet phy
Chip 6, for realizing the network service between fpga3 and host computer.
In present embodiment, a/d acquisition module 2 once gathers 1k sampled point of sampling, after having gathered 1k sampled point,
All sampled datas are done average, obtains final sampled data, this sampled data is the data finally storing in cf card, wait to adopt
After collection terminates, the data of collection is sent to by calculation machine by network.
Specific embodiment seven: the rs-422/485 communication test prison for automatic missile checkout system described in present embodiment
Survey method, the method comprises the steps:
For gathering the monitored path Shang 16 road rs-422/485 differential signal between equipment under test and test system, right
Passage after 16 road rs-422/485 differential signals of collection carry out measurement range selection, to 16 road rs-422/485 differential signals places
Carry out decaying/amplifying, then the signal condition in passage is filtered, after meeting the input requirements of analog-digital converter adc, by modulus
Transducer adc realizes the sampling to analogue signal, and the rs-422/485 differential digital signal obtaining after sampling is isolated through magnetoelectricity
The step exporting afterwards；
For gathering 2 road rs-422 differential signals or 2 road rs- on the monitored path between equipment under test and test system
485 differential signals, and Phototube Coupling is carried out to the 2 road rs-422 differential signals or 2 road rs-485 differential signals of collection, and export
Rs-422 differential signal after treatment or the step of rs-485 differential signal；
Carry out data for receiving rs-422/485 differential digital signal, rs-422 differential signal or rs-485 differential signal
The step of restructuring, the step for sending voltage signal, rs-422 differential signal or rs-485 differential signal after restructuring, it is used for
The step sending synchronous storage control signal and power down storage control signal, is additionally operable to the step being communicated with extraneous network；
For upper electricity in the case of storage restructuring after rs-422/485 differential digital signal, rs-422 differential signal or
The step of rs-485 differential signal；
For in the case of power down storage restructuring after rs-422/485 differential digital signal, rs-422 differential signal or
The step of rs-485 differential signal.
Specific embodiment eight: present embodiment and the rs-422/ for automatic missile checkout system described in embodiment seven
The difference of 485 communication test monitoring methods is,
For gathering 2 road rs-422 differential signals or 2 road rs- on the monitored path between equipment under test and test system
485 differential signals, and Phototube Coupling is carried out to the 2 road rs-422 differential signals or 2 road rs-485 differential signals of collection, and export
Rs-422 differential signal after treatment or the step of rs-485 differential signal include:
For receiving 2 road rs-485 differential signals on the detected path between equipment under test and test system, and by 2
Road rs-485 differential signal sends to the step of light-coupled isolation 1-2；
For receiving 2 road rs-422 differential signals on the monitored path between equipment under test and test system, and by 2 tunnels
Rs-422 differential signal sends to the step of light-coupled isolation 1-2；
For isolating to 2 road rs-422 differential signals or 2 road rs-485 differential signals, and will be defeated for the signal after isolation
Go out the function ip core 3-1 to fpga3；
Step for being powered to light-coupled isolation 1-2.
Specific embodiment nine: present embodiment and the rs-422/ for automatic missile checkout system described in embodiment seven
The difference of 485 communication test monitoring methods is,
Described for gathering the monitored path Shang 16 road rs-422/485 difference between equipment under test and test system
16 road rs-422/485 differential signals of collection are carried out after measurement range selection, to 16 road rs-422/485 differential signal institutes by signal
Passage carry out decaying/amplifying, then in passage signal condition filter, meet the input requirements of analog-digital converter adc
Afterwards, the sampling to analogue signal is realized by analog-digital converter adc, the rs-422/485 differential digital signal obtaining after sampling is passed through
After magnetoelectricity isolation, the step of output includes:
For carrying out to the monitored path Shang 16 road rs-422/485 differential signal between equipment under test and test system
Input after serioparallel exchange to the step of selective circuit of measuring range 2-5；
For carrying out to the monitored path Shang 16 road rs-422/485 differential signal between equipment under test and test system
Measurement range selection, the passage that 16 road rs-422/485 differential signals are located sends to signal condition and filter after carrying out decaying/amplifying
The step of wave circuit 2-4；
For signal condition filtering is carried out to the Hou 16 road rs-422/485 differential signal that carries out in passage decaying/amplify,
Input after the input requirements making its analog-digital converter adc to the step of analog-digital converter adc circuit 2-3；
For completing the sampling to analogue signal, obtain rs-422/485 differential digital signal, and send to magnetoelectricity isolation
The step of device 2-1；
For rs-422/485 differential digital signal is carried out with the step exporting after magnetoelectricity isolation to function ip core 3-1.
Specific embodiment ten: present embodiment and the rs-422/ for automatic missile checkout system described in embodiment seven
The difference of 485 communication test monitoring methods is,
Described enters for receiving rs-422/485 differential digital signal, rs-422 differential signal or rs-485 differential signal
The step of row data recombination, for sending the rs-422/485 differential digital signal after restructuring, rs-422 differential signal or rs-
The step of 485 differential signals, the step for sending synchronous storage control signal and power down storage control signal, it is additionally operable to outward
The step that boundary's network is communicated includes:
For receiving/sending rs-422/485 differential digital signal, rs-422 differential signal or rs-485 differential signal
Step；
For carrying out to the rs-422/485 differential digital signal receiving, rs-422 differential signal or rs-485 differential signal
The step of data recombination, for sending the rs-422/485 differential digital signal after restructuring, rs-422 differential signal or rs-485
The step of differential signal, the step for sending synchronous storage control signal and power down storage control signal；
For receiving the rs-422/485 differential digital signal after restructuring, rs-422 differential signal or rs-485 differential signal
Step, for receiving synchronous dynamic control signal, and the step sending synchronous storage control signal；
For receiving the rs-422/485 differential digital signal after restructuring, rs-422 differential signal or rs-485 differential signal
Step, for receiving power down control signal, the step that concurrently gives away electric storage control signal；
For carrying out flow-control in a full-duplex mode, realize the transmission/reception of mac frame, the encapsulation/unpacking of mac frame
And the step of the error detection of mac frame.
Claims (8)
1. it is used for the rs-422/485 communication test monitoring device of automatic missile checkout system, it includes rs-422/485 communication module
(1), a/d acquisition module (2), fpga (3), ddr memory module (5) and cf card (4)；
A/d acquisition module (2), for gathering the monitored path Shang 16 road rs-422/485 between equipment under test and test system
16 road rs-422/485 differential signals of collection are carried out after measurement range selection by differential signal, to 16 road rs-422/485 difference letters
Number be located passage carry out decaying/amplifying, then in passage signal condition filter, meet the input of analog-digital converter adc
After requirement, the sampling to analogue signal is realized by analog-digital converter adc, the rs-422/485 differential digital signal obtaining after sampling
Export after magnetoelectricity isolation；
Rs-422/485 communication module (1), for gathering 2 road rs- on the monitored path between equipment under test and test system
422 differential signals or 2 road rs-485 differential signals, and the 2 road rs-422 differential signals to collection or 2 road rs-485 differential signals
Carry out Phototube Coupling, and export rs-422 differential signal after treatment or rs-485 differential signal；
Fpga (3), is carried out for receiving rs-422/485 differential digital signal, rs-422 differential signal or rs-485 differential signal
Data recombination, for sending the rs-422/485 differential digital signal after restructuring, rs-422 differential signal or rs-485 difference letter
Number, for sending synchronous storage control signal and power down storage control signal, it is additionally operable to be communicated with extraneous network；
Ddr memory module (5), for the rs-422/485 differential digital signal after storage restructuring in the case of upper electricity, rs-
422 differential signals or rs-485 differential signal；
Cf card (4), for the rs-422/485 differential digital signal after storage restructuring in the case of power down, rs-422 difference letter
Number or rs-485 differential signal；
It is characterized in that, described fpga (3) includes function ip core (3-1), embedded controller ip core (3-2), network control ip
Core (3-3) and two Memory controls ip core (3-4)；
Function ip core (3-1), for receiving/sending rs-422/485 differential digital signal, rs-422 differential signal or rs-485
Differential signal；
Embedded controller ip core (3-2), for receive rs-422/485 differential digital signal, rs-422 differential signal or
Rs-485 differential signal carries out data recombination, for sending the rs-422/485 differential digital signal after restructuring, rs-422 difference
Signal or rs-485 differential signal, for sending synchronous storage control signal and power down storage control signal；
One Memory control ip core (3-4), for receiving the rs-422/485 differential digital signal after restructuring, rs-422 difference letter
Number or rs-485 differential signal, for receiving synchronous dynamic control signal, and send synchronous storage control signal；
Another Memory control ip core (3-4), for receiving the rs-422/485 differential digital signal after restructuring, rs-422 difference
Signal or rs-485 differential signal, for receiving power down control signal, concurrently give away electric storage control signal；
Network controls ip core (3-3) to comprise mac layer module, for carrying out flow-control in a full-duplex mode, realizes mac frame
The error detection of transmission/receive, the encapsulation/unpacking of mac frame and mac frame.
2. the rs-422/485 communication test monitoring device for automatic missile checkout system according to claim 1, its feature
It is, rs-422/485 communication module (1) includes rs-485 receptor (1-1), light-coupled isolation (1-2), rs-422 receptor (1-
3) and insulating power supply (1-4)；
Rs-485 receptor (1-1), for receiving 2 road rs-485 on the detected path between equipment under test and test system
Differential signal, and 2 road rs-485 differential signals are sent to light-coupled isolation (1-2)；
Rs-422 receptor (1-3), poor for receiving 2 road rs-422 on the monitored path between equipment under test and test system
Sub-signal, and 2 road rs-422 differential signals are sent to light-coupled isolation (1-2)；
Light-coupled isolation (1-2), for isolating to 2 road rs-422 differential signals or 2 road rs-485 differential signals, and will isolate
The function ip core (3-1) to fpga (3) for the signal output afterwards；
Insulating power supply (1-4), for being powered to light-coupled isolation (1-2).
3. the rs-422/485 communication test monitoring device for automatic missile checkout system according to claim 1, its feature
It is, a/d acquisition module (2) includes electromagnetic screen (2-1), deserializer (2-2), analog-digital converter adc circuit (2-
3), signal condition and filter circuit (2-4) and selective circuit of measuring range (2-5),
Deserializer (2-2), for the monitored path Shang 16 road rs-422/485 between equipment under test and test system
Differential signal inputs after carrying out serioparallel exchange to selective circuit of measuring range (2-5)；
Selective circuit of measuring range (2-5), for the monitored path Shang 16 road rs-422/ between equipment under test and test system
485 differential signals carry out measurement range selection, and the passage that 16 road rs-422/485 differential signals are located sends after carrying out decaying/amplifying
To signal condition and filter circuit (2-4)；
Signal condition and filter circuit (2-4), for the Hou 16 road rs-422/485 difference letter that carries out in passage decaying/amplify
Number carry out signal condition filtering so as to input to analog-digital converter adc circuit after reaching the input requirements of analog-digital converter adc
(2-3)；
Analog-digital converter adc circuit (2-3), for completing the sampling to analogue signal, obtains rs-422/485 differential digital letter
Number, and send to electromagnetic screen (2-1)；
Electromagnetic screen (2-1) is used for rs-422/485 differential digital signal is carried out exporting to function ip core after magnetoelectricity isolation
(3-1).
4. the rs-422/485 communication test monitoring device for automatic missile checkout system according to claim 1, its feature
It is, described rs-422 differential signal and rs-485 differential signal are with/Asynchronous Reception.
5. the rs-422/485 communication test monitoring device for automatic missile checkout system according to claim 1, its feature
It is, it also includes Ethernet phy chip (6), be used for realizing network service and host computer between for the fpga (3).
6. it is used for the rs-422/485 communication test monitoring method of automatic missile checkout system, the method comprises the steps:
For gathering the monitored path Shang 16 road rs-422/485 differential signal between equipment under test and test system, to collection
16 road rs-422/485 differential signals carry out measurement range selection after, the passage that 16 road rs-422/485 differential signals are located is carried out
Decay/amplify, then filters to the signal condition in passage, after meeting the input requirements of analog-digital converter adc, by analog digital conversion
Device adc realizes the sampling to analogue signal, and the rs-422/485 differential digital signal obtaining after sampling is defeated after magnetoelectricity isolation
The step going out；
For gathering 2 road rs-422 differential signals or 2 road rs-485 on the monitored path between equipment under test and test system
Differential signal, and Phototube Coupling is carried out to the 2 road rs-422 differential signals or 2 road rs-485 differential signals of collection, and export warp
Rs-422 differential signal after process or the step of rs-485 differential signal；
Carry out data recombination for receiving rs-422/485 differential digital signal, rs-422 differential signal or rs-485 differential signal
Step, for send restructuring after voltage signal, rs-422 differential signal or rs-485 differential signal step, for sending
Synchronous storage control signal and the step of power down storage control signal, are additionally operable to the step being communicated with extraneous network；
For the rs-422/485 differential digital signal after storage restructuring in the case of upper electricity, rs-422 differential signal or rs-
The step of 485 differential signals；
For the rs-422/485 differential digital signal after storage restructuring in the case of power down, rs-422 differential signal or rs-
The step of 485 differential signals；
It is characterized in that, described is poor for receiving rs-422/485 differential digital signal, rs-422 differential signal or rs-485
The step that sub-signal carries out data recombination, for sending the rs-422/485 differential digital signal after restructuring, rs-422 difference letter
Number or rs-485 differential signal step, the step for sending synchronous storage control signal and power down storage control signal, also
Step for being communicated with extraneous network is included:
Step for receiving/sending rs-422/485 differential digital signal, rs-422 differential signal or rs-485 differential signal；
For data is carried out to the rs-422/485 differential digital signal receiving, rs-422 differential signal or rs-485 differential signal
The step of restructuring, for sending the rs-422/485 differential digital signal after restructuring, rs-422 differential signal or rs-485 difference
The step of signal, the step for sending synchronous storage control signal and power down storage control signal；
For receiving the step of rs-422/485 differential digital signal, rs-422 differential signal or rs-485 differential signal after restructuring
Suddenly, for receiving synchronous dynamic control signal, and the step sending synchronous storage control signal；
For receiving the step of rs-422/485 differential digital signal, rs-422 differential signal or rs-485 differential signal after restructuring
Suddenly, for receiving power down control signal, the step that concurrently gives away electric storage control signal；
For carrying out flow-control in a full-duplex mode, realize the transmission/reception of mac frame, the encapsulation/unpacking of mac frame and
The step of the error detection of mac frame.
7. the rs-422/485 communication test monitoring method for automatic missile checkout system according to claim 6, its feature
It is, for gathering 2 road rs-422 differential signals or 2 road rs-485 on the monitored path between equipment under test and test system
Differential signal, and Phototube Coupling is carried out to the 2 road rs-422 differential signals or 2 road rs-485 differential signals of collection, and export warp
The step of the rs-422 differential signal after process or rs-485 differential signal includes:
For receiving 2 road rs-485 differential signals on the detected path between equipment under test and test system, and by 2 tunnels
Rs-485 differential signal sends to the step of light-coupled isolation (1-2)；
For receiving 2 road rs-422 differential signals on the monitored path between equipment under test and test system, and by 2 road rs-
422 differential signals send to the step of light-coupled isolation (1-2)；
For isolating to 2 road rs-422 differential signals or 2 road rs-485 differential signals, and by the signal output after isolation extremely
Function ip core (3-1) in fpga (3)；
Step for being powered to light-coupled isolation (1-2).
8. the rs-422/485 communication test monitoring method for automatic missile checkout system according to claim 6, its feature
It is, described believes for gathering the monitored path Shang 16 road rs-422/485 difference between equipment under test and test system
Number, 16 road rs-422/485 differential signals of collection are carried out after measurement range selection, 16 road rs-422/485 differential signals are located
Passage carry out decaying/amplifying, then in passage signal condition filter, after meeting the input requirements of analog-digital converter adc,
Sampling to analogue signal is realized by analog-digital converter adc, the rs-422/485 differential digital signal obtaining after sampling is through magnetic
After electric isolution, the step of output includes:
For carrying out going here and there simultaneously to the monitored path Shang 16 road rs-422/485 differential signal between equipment under test and test system
Input after conversion to the step of selective circuit of measuring range (2-5)；
For range is carried out to the monitored path Shang 16 road rs-422/485 differential signal between equipment under test and test system
Select, the passage that 16 road rs-422/485 differential signals are located sends to signal condition and filtered electrical after carrying out decaying/amplifying
The step on road (2-4)；
For signal condition filtering is carried out to the Hou 16 road rs-422/485 differential signal that carries out in passage decaying/amplify so as to
Input after the input requirements reaching analog-digital converter adc to the step of analog-digital converter adc circuit (2-3)；
For completing the sampling to analogue signal, obtain rs-422/485 differential digital signal, and send to electromagnetic screen (2-
1) step；
For rs-422/485 differential digital signal is carried out with the step exporting after magnetoelectricity isolation to function ip core (3-1).
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