CN105300199A - 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
Along with the development of automatic missile checkout system technology, change automatic test into by traditional manual, semi-automatic test, and Auto-Test System also experienced by 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 for this kind of very important measurand of guided missile, must ensure that test macro is in normal, correct duty all the time in test process, in order to avoid bring damage or adverse effect to measurand.In actual implementation Missile ATS process, often adopt the mode of guided missile simulator, before Auto-Test System is to the test of missile, carry out the self-inspection that flow process is consistent, to check the correctness of the various duties such as interface, software and hardware, guarantee test smooth, reliably carry out.
The mode of self-inspection before this test, though test risk, the reliability promoting test and security can be reduced to a certain extent, but but cannot avoid completely in test process, effective record testing equipment especially tests the overall process with measured signal, even if thus cause test result defective, often be difficult to quick, that direct location is measurand problem, or the problem of testing equipment, great limitation is brought to quick diagnosis, fast failure location.
Summary of the invention
The object of the invention is design one is applicable in automatic missile checkout system process, for recording the device and method with the RS422/485 differential signal of monitoring and test system, the present invention proposes the RS-422/485 communication test monitoring device and the monitoring method that are used for automatic missile checkout system.
For the RS-422/485 communication test monitoring device of automatic missile checkout system, it comprises 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-422/485 differential signal between equipment under test and test macro, after measurement range selection is carried out to the 16 road RS-422/485 differential signals gathered, the passage at 16 RS-422/485 differential signal places, road is decayed/amplified, then to the signal condition filtering in passage, after meeting the input requirements of analog-digital converter ADC, realize the sampling to analog signal by analog-digital converter ADC, the RS-422/485 differential digital signal obtained after sampling exports after magnetoelectricity isolation;
RS-422/485 communication module 1, for gathering 2 road RS-422 differential signals on the monitored path between equipment under test and test macro or 2 road RS-485 differential signals, and Phototube Coupling is carried out to the 2 road RS-422 differential signals gathered or 2 road RS-485 differential signals, and the RS-422 differential signal exported after treatment or RS-485 differential signal;
FPGA3, data recombination is carried out for receiving RS-422/485 differential digital signal, RS-422 differential signal or RS-485 differential signal, for sending the RS-422/485 differential digital signal after restructuring, RS-422 differential signal or RS-485 differential signal, for sending stores synchronized control signal and power down storage control signal, also for communicating with extraneous network;
DDR memory module 5, for storing RS-422/485 differential digital signal, RS-422 differential signal or RS-485 differential signal after restructuring when powering on;
CF card 4, for storing RS-422/485 differential digital signal, RS-422 differential signal or RS-485 differential signal after restructuring when power down.
RS-422/485 communication module 1 comprises RS-485 receiver 1-1, light-coupled isolation 1-2, RS-422 receiver 1-3 and insulating power supply 1-4;
2 road RS-485 differential signals for receiving 2 road RS-485 differential signals on the detected path between equipment under test and test macro, and are sent to light-coupled isolation 1-2 by RS-485 receiver 1-1;
2 road RS-422 differential signals for receiving 2 road RS-422 differential signals on the monitored path between equipment under test and test macro, and are sent to light-coupled isolation 1-2 by RS-422 receiver 1-3;
Light-coupled isolation 1-2, for isolating 2 road RS-422 differential signals or 2 road RS-485 differential signals, and exports the function IP kernel 3-1 in FPGA3 to by the signal after isolation;
Insulating power supply 1-4, for powering to light-coupled isolation 1-2.
A/D acquisition module 2 comprises 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, inputs to selective circuit of measuring range 2-5 after carrying out serioparallel exchange to the monitored path Shang 16 road RS-422/485 differential signal between equipment under test and test macro;
Selective circuit of measuring range 2-5, for carrying out measurement range selection to the monitored path Shang 16 road RS-422/485 differential signal between equipment under test and test macro, after the passage at 16 RS-422/485 differential signal places, road is decayed/amplified, be sent to signal condition and filter circuit 2-4;
Signal condition and filter circuit 2-4, for carrying out signal condition filtering to Hou 16 road RS-422/485 differential signal of decaying in passage/amplify, input to analog-digital converter adc circuit 2-3 after making the input requirements of its analog-digital converter ADC;
Analog-digital converter adc circuit 2-3, for completing the sampling to analog signal, obtaining RS-422/485 differential digital signal, and being sent to electromagnetic screen 2-1;
Electromagnetic screen 2-1 exports function IP kernel 3-1 to after being used for carrying out magnetoelectricity isolation to RS-422/485 differential digital signal.
Described FPGA3 comprises function IP kernel 3-1, embedded controller IP kernel 3-2, a network control IP kernel 3-3 and two Memory control IP kernel 3-4;
Function IP kernel 3-1, for receiving/sending RS-422/485 differential digital signal, RS-422 differential signal or RS-485 differential signal;
Embedded controller IP kernel 3-2, for carrying out data recombination to the RS-422/485 differential digital signal received, RS-422 differential signal or RS-485 differential signal, for sending the RS-422/485 differential digital signal after restructuring, RS-422 differential signal or RS-485 differential signal, for sending stores synchronized control signal and power down storage control signal;
A Memory control IP kernel 3-4, for receiving the RS-422/485 differential digital signal after restructuring, RS-422 differential signal or RS-485 differential signal, for receiving synchronous dynamic control signal, and sends stores synchronized control signal;
Another Memory control IP kernel 3-4, for receiving the RS-422/485 differential digital signal after restructuring, RS-422 differential signal or RS-485 differential signal, for receiving power down control signal, concurrently gives away electric storage control signal;
Network control IP kernel 3-3 comprises MAC layer module, for carrying out flow-control in a full-duplex mode, realizes the sending/receiving of mac frame, the encapsulation/unpack of mac frame and the error detection of mac frame.
For the RS-422/485 communication test monitoring device of automatic missile checkout system, it also comprises 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 macro, after measurement range selection is carried out to the 16 road RS-422/485 differential signals gathered, the passage at 16 RS-422/485 differential signal places, road is decayed/amplified, then to the signal condition filtering in passage, after meeting the input requirements of analog-digital converter ADC, the sampling to analog signal is realized, the step that the RS-422/485 differential digital signal obtained after sampling exports after magnetoelectricity isolation by analog-digital converter ADC;
For gathering 2 road RS-422 differential signals on the monitored path between equipment under test and test macro or 2 road RS-485 differential signals, and Phototube Coupling is carried out to the 2 road RS-422 differential signals gathered or 2 road RS-485 differential signals, and the step of the RS-422 differential signal exported after treatment or RS-485 differential signal;
The step of data recombination is carried out for receiving RS-422/485 differential digital signal, RS-422 differential signal or RS-485 differential signal, for sending the step of the voltage signal after restructuring, RS-422 differential signal or RS-485 differential signal, for sending the step of stores synchronized control signal and power down storage control signal, also for carrying out with extraneous network the step that communicates;
For storing the step of RS-422/485 differential digital signal, RS-422 differential signal or RS-485 differential signal after restructuring when powering on;
For storing the step of RS-422/485 differential digital signal, RS-422 differential signal or RS-485 differential signal after restructuring when power down.
Described for gathering 2 road RS-422 differential signals on the monitored path between equipment under test and test macro or 2 road RS-485 differential signals, and Phototube Coupling is carried out to the 2 road RS-422 differential signals gathered or 2 road RS-485 differential signals, and the step of the RS-422 differential signal exported after treatment or RS-485 differential signal comprises:
For receiving 2 road RS-485 differential signals on the detected path between equipment under test and test macro, and 2 road RS-485 differential signals are sent 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 macro, and 2 road RS-422 differential signals are sent to the step of light-coupled isolation 1-2;
For isolating 2 road RS-422 differential signals or 2 road RS-485 differential signals, and the signal after isolation is exported to the function IP kernel 3-1 in FPGA3;
For the step of powering to light-coupled isolation 1-2.
Described for collecting the monitored path Shang 16 road RS-422/485 differential signal between equipment under test and test macro, after measurement range selection is carried out to the 16 road RS-422/485 differential signals gathered, the passage at 16 RS-422/485 differential signal places, road is decayed/amplified, then to the signal condition filtering in passage, after meeting the input requirements of analog-digital converter ADC, realize the sampling to analog signal by analog-digital converter ADC, the step that the RS-422/485 differential digital signal obtained after sampling exports after magnetoelectricity isolation comprises:
For inputing to the step of selective circuit of measuring range 2-5 after carrying out serioparallel exchange to the monitored path Shang 16 road RS-422/485 differential signal between equipment under test and test macro;
For carrying out measurement range selection to the monitored path Shang 16 road RS-422/485 differential signal between equipment under test and test macro, after the passage at 16 RS-422/485 differential signal places, road is decayed/amplified, be sent to the step of signal condition and filter circuit 2-4;
For carrying out signal condition filtering to Hou 16 road RS-422/485 differential signal of decaying in passage/amplify, after making the input requirements of its analog-digital converter ADC, input to the step of analog-digital converter adc circuit 2-3;
For completing the sampling to analog signal, obtaining RS-422/485 differential digital signal, and being sent to the step of electromagnetic screen 2-1;
For exporting the step of function IP kernel 3-1 after carrying out magnetoelectricity isolation to RS-422/485 differential digital signal to.
The described step of carrying out data recombination for receiving RS-422/485 differential digital signal, RS-422 differential signal or RS-485 differential signal, for sending the step of the RS-422/485 differential digital signal after restructuring, RS-422 differential signal or RS-485 differential signal, for sending the step of stores synchronized control signal and power down storage control signal, also for comprising with the step that extraneous network carries out communicating:
For receiving/sending the step of RS-422/485 differential digital signal, RS-422 differential signal or RS-485 differential signal;
For carrying out the step of data recombination to the RS-422/485 differential digital signal received, RS-422 differential signal or RS-485 differential signal, for sending the step of the RS-422/485 differential digital signal after restructuring, RS-422 differential signal or RS-485 differential signal, for sending the step of stores synchronized control signal and power down storage control signal;
For receiving the step of the RS-422/485 differential digital signal after restructuring, RS-422 differential signal or RS-485 differential signal, for receiving synchronous dynamic control signal, and send the step of stores synchronized control signal;
For receiving the step of the RS-422/485 differential digital signal after restructuring, RS-422 differential signal or RS-485 differential signal, for receiving power down control signal, the concurrent step giving away electric storage control signal;
For carrying out flow-control in a full-duplex mode, realize the step of the sending/receiving of mac frame, the encapsulation/unpack of mac frame and 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 is connected 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 signal, prove guided missile self to go wrong, when RS-422/485 communication test monitoring device can collect signal, the signal that Auto-Test System gathers also may because the problem of himself, there is the situation of data distortion, and the present invention can carry out real-time monitoring to guided missile to Auto-Test System transmission data in real time, real-time monitors data and stores, when Auto-Test System detects that guided missile self has problems, host computer can be real-time the data called in RS-422/485 communication test monitoring device, to its data analysis, the position of failure judgement, improve diagnosis speed, diagnosis speed improves more than 5%, and fault location can be carried out fast.
The present invention is applicable to the signal monitoring of other test macros.
Accompanying drawing explanation
Fig. 1 is the principle schematic of the RS-422/485 communication test monitoring device for automatic missile checkout system of the present invention;
Fig. 2 is a kind of physical circuit principle schematic of A/D acquisition module in detailed description of the invention 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 numeral 2-1 represents magnetoelectricity buffer circuit, and 2-2 represents deserializer, and 2-3 represents analog-digital converter ADC, and 2-4 represents signal condition and filter circuit, and 2-5 represents selective circuit of measuring range, and 8 represent DC/DC module;
Reference numeral 1-1 represents RS-485 receiver, 1-2 represents light-coupled isolation, 1-3 represents RS-422 receiver, 1-4 represents insulating power supply;
Reference numeral 3-1 presentation function IP kernel, 3-2 represent embedded controller IP kernel, 3-3 represents network control IP kernel, 1-4 represents Memory control IP kernel.
Detailed description of the invention
Detailed description of the invention one, illustrate present embodiment referring to figs. 1 through 5, the RS-422/485 communication test monitoring device for automatic missile checkout system described in present embodiment, it comprises 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-422/485 differential signal between equipment under test and test macro, after measurement range selection is carried out to the 16 road RS-422/485 differential signals gathered, the passage at 16 RS-422/485 differential signal places, road is decayed/amplified, then to the signal condition filtering in passage, after meeting the input requirements of analog-digital converter ADC, realize the sampling to analog signal by analog-digital converter ADC, the RS-422/485 differential digital signal obtained after sampling exports after magnetoelectricity isolation;
RS-422/485 communication module 1, for gathering 2 road RS-422 differential signals on the monitored path between equipment under test and test macro or 2 road RS-485 differential signals, and Phototube Coupling is carried out to the 2 road RS-422 differential signals gathered or 2 road RS-485 differential signals, and the RS-422 differential signal exported after treatment or RS-485 differential signal;
FPGA3, data recombination is carried out for receiving RS-422/485 differential digital signal, RS-422 differential signal or RS-485 differential signal, for sending the RS-422/485 differential digital signal after restructuring, RS-422 differential signal or RS-485 differential signal, for sending stores synchronized control signal and power down storage control signal, also for communicating with extraneous network;
DDR memory module 5, for storing RS-422/485 differential digital signal, RS-422 differential signal or RS-485 differential signal after restructuring when powering on;
CF card 4, for storing RS-422/485 differential digital signal, RS-422 differential signal or RS-485 differential signal after restructuring when power down.
In present embodiment, RS-422/485 communication module 1 and A/D acquisition module 2 can use simultaneously, also can separately use, and RS-422/485 communication module 1 is for gathering the analog signal of RS-422/485 differential signal; A/D acquisition module 2 is for gathering the data signal of the differential signal of RS-422/485.Just follow-up judge signal whether complete or correct time, the judgment mode of employing is different, and a kind of is judgement to analog signal, and another kind is the judgement to data signal.But the function of the two is identical.
The function that A/D acquisition module mainly realizes be realize 16 Channel Synchronous parallel continuous print collection is carried out to voltage signal.Input analog signal is first through measurement range selection, signalling channel is decayed/amplified, then through conditioning filtering, after meeting the input requirements of ADC, the sampling to analog signal is realized by ADC, signal after sampling is input in FPGA3 after magnetoelectricity isolation, after the restructuring by the complete paired data of FPGA3, data is stored in DDR memory module 5 internal memory.
The design that the design of the control unit of A/D acquisition module 2 and memory cell control realizes by FPGA3.Because passage each in Fig. 2 adopts independent DC-DC module 8 to power, and the control signal of ADC, the control signal of data-signal and measurement range selection is all isolated with control FPGA3, so each interchannel is electrical isolation, thus ensure that the isolation of input signal.
In Fig. 3, selective circuit of measuring range 2-5 realization is to the decay of input signal and amplification, and selective circuit of measuring range 2-5 is made up of attenuator circuit and programmable instrument amplifier AD8253.Form attenuator circuit by R11, R9 and R12, the resistance of the resistance of R11 to be the resistance of 200K Ω, R9 be 200K Ω, R12 is 800K Ω, and whole input impedance is 1200K Ω, is greater than the input impedance requirement of 1M Ω, and dividing ratios is fixing 2/3.The scope of input signal is-15V ~+15V, and after dividing potential drop, the input range of instrumentation amplifier AD8253 is-10V ~+10V, meets the requirement of its input range.The multiplication factor of instrumentation amplifier AD8253 is program control by A0 and A1, and user can according to the scope of input signal, select 1 freely ×, 10 ×, 100 × and 1000 × multiplication factor.
Signal condition and filter circuit 2-4 nurse one's health and filtering the voltage signal that selective circuit of measuring range 2-5 (AD8253) exports, and make it the requirement of the input range 0 ~ 2.5V meeting analog-digital converter ADC2-3.Signal condition and filter circuit adopt high-precision high-speed operational amplifier A D8021.
The Flash memory module of CF card inside applies NANDFlash mostly as storage medium, and NANDFlash capacity is large, and cost is low, can reach higher data access speed.
CF card support three kinds of mode of operations: (1) PCCardI/O pattern; (2) PCCardMemory pattern and (3) TrueIDE (IntegratedDeviceElectronics) pattern.Wherein PCCard pattern meets PC storage card international federation PCMCIA (PersonalComputerMemoryCardInternationalAssociation) agreement completely, and TrueIDE pattern then meets ATA/IDE agreement.
The selection of PCCard pattern and TrueIDE pattern is selected by the 9th pin ATA-SEL.After powering on, if this pin is high level, CF card enters PCCard pattern, if low level, then enters TrueIDE pattern.Under CF card is operated in PCCard pattern, PCCardMemory pattern or PCCardI/O pattern can be entered by revising inner configuration register.
In above three kinds of mode of operations, the hardware circuit under TrueIDE pattern is the simplest, only need use 3 address wire A [2:0], all the other 8 address wire A [10:3] ground connection.Under TrueIDE pattern, the control logic of CF card is also comparatively simple, when under the work of CF card therewith pattern, agreement and the configuration of PCMCIAPCCard are all disabled, user, without the need to configuring Memory register in PCMCIA agreement or Attribute register, only need access by 3 address wires the control that 8 TaskFile registers can realize CF card.Because CF card circuit under TrueIDE pattern is simple, it is convenient to control, and in design, CF card is configured to the access that TrueIDE pattern carries out data.
Under CF card enters TrueIDE mode of operation, there are three kinds of data-transmission modes after powering on, are respectively PIO pattern, MultiWordDMA pattern and UltraDMA pattern.In above Three models, under UltraDMA pattern, data transmission bauds is the fastest.Under PIO and MultiWordDMA pattern, under PIO-6 and MultiWordDMA-4 that data access speed is the fastest, spikes in speed is 25MB/s, and average access speed there are differences according to the difference of each production firm.Under UltraDMA pattern, the spikes in speed of UltraDMA-4, UltraDMA-5 and UltraDMA-6 is respectively 66MB/s, 100MB/s and 133MB/s, and the CF card average transmission speed that different businessman produces is also different.
Peripheral control unit and CF stick into line number reportedly defeated time, at every turn to the sector number of CF card application read/write between 1 to 256 sectors.The sector number of single request for data transmission is larger, and the utilization rate of CF card data/address bus is higher, and data transmission bauds is also faster.
Detailed description of the invention two: present embodiment is described see Fig. 4 and Fig. 5, the difference of present embodiment and the RS-422/485 communication test monitoring device for automatic missile checkout system described in detailed description of the invention one is, RS-422/485 communication module 1 comprises RS-485 receiver 1-1, light-coupled isolation 1-2, RS-422 receiver 1-3 and insulating power supply 1-4;
2 road RS-485 differential signals for receiving 2 road RS-485 differential signals on the detected path between equipment under test and test macro, and are sent to light-coupled isolation 1-2 by RS-485 receiver 1-1;
2 road RS-422 differential signals for receiving 2 road RS-422 differential signals on the monitored path between equipment under test and test macro, and are sent to light-coupled isolation 1-2 by RS-422 receiver 1-3;
Light-coupled isolation 1-2, for isolating 2 road RS-422 differential signals or 2 road RS-485 differential signals, and exports the function IP kernel 3-1 in FPGA3 to by the signal after isolation;
Insulating power supply 1-4, for powering to light-coupled isolation 1-2.
In present embodiment, 2 road RS-422 differential signals on monitored path between equipment under test with test macro or 2 road RS-485 differential signals are corresponding is sent to RS-422 receiver 1-3 in RS-422/485 communication module 1 or RS-485 receiver 1-1, RS-422 differential signal or RS-485 differential signal are sent to light-coupled isolation 1-2 by RS-422 receiver 1-3 or RS-485 receiver 1-1 respectively isolates, the signal after isolation is sent to the function IP kernel 3-1 in FPGA3 after isolation, function IP kernel processes again.
Fig. 5 is the fundamental diagram of RS422/485 communication module 1, in the present invention, only for receiving.In Fig. 5, FPGA sends data, export by RS-422 driver and RS-485 driver the signal meeting the level standard of RS-422 and RS-485 after sending light-coupled isolation, after receiving satisfactory signal, give reception light-coupled isolation by RS422 receiver and RS485 receiver to isolate, finally give the interpretation that FPGA carries out data.
RS-422 is full duplex work, and RS-485 work in a half-duplex mode, needs the anode of holding wire and negative terminal to carry out short circuit, namely send and receive use data channel.
Detailed description of the invention three: present embodiment is described see Fig. 2 and Fig. 3, the difference of present embodiment and the RS-422/485 communication test monitoring device for automatic missile checkout system described in detailed description of the invention one is,
A/D acquisition module 2 comprises 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, inputs to selective circuit of measuring range 2-5 after carrying out serioparallel exchange to the monitored path Shang 16 road RS-422/485 differential signal between equipment under test and test macro;
Selective circuit of measuring range 2-5, for carrying out measurement range selection to the monitored path Shang 16 road RS-422/485 differential signal between equipment under test and test macro, after the passage at 16 RS-422/485 differential signal places, road is decayed/amplified, be sent to signal condition and filter circuit 2-4;
Signal condition and filter circuit 2-4, for carrying out signal condition filtering to Hou 16 road RS-422/485 differential signal of decaying in passage/amplify, input to analog-digital converter adc circuit 2-3 after making the input requirements of its analog-digital converter ADC;
Analog-digital converter adc circuit 2-3, for completing the sampling to analog signal, obtaining RS-422/485 differential digital signal, and being sent to electromagnetic screen 2-1;
Electromagnetic screen 2-1 exports function IP kernel 3-1 to after being used for carrying out magnetoelectricity isolation to RS-422/485 differential digital signal.
In present embodiment, A/D acquisition module, gather the monitored path Shang 16 road RS-422/485 differential digital signal between equipment under test and test macro, after measurement range selection is carried out to the 16 road RS-422/485 differential digital signal gathered, the passage at 16 RS-422/485 differential digital signal places, road is decayed/amplified, then to the signal condition filtering in passage, after meeting the input requirements of analog-digital converter ADC, realize the sampling to analog signal by analog-digital converter ADC, the voltage digital signal obtained after sampling exports after magnetoelectricity isolation.
Detailed description of the invention four: present embodiment is described see Fig. 1 to 4, the difference of present embodiment and the RS-422/485 communication test monitoring device for automatic missile checkout system described in detailed description of the invention one is, described FPGA3 comprises function IP kernel 3-1, embedded controller IP kernel 3-2, a network control IP kernel 3-3 and two Memory control IP kernel 3-4;
Function IP kernel 3-1, for receiving/sending RS-422/485 differential digital signal, RS-422 differential signal or RS-485 differential signal;
Embedded controller IP kernel 3-2, for carrying out data recombination to the RS-422/485 differential digital signal received, RS-422 differential signal or RS-485 differential signal, for sending the RS-422/485 differential digital signal after restructuring, RS-422 differential signal or RS-485 differential signal, for sending stores synchronized control signal and power down storage control signal;
A Memory control IP kernel 3-4, for receiving the RS-422/485 differential digital signal after restructuring, RS-422 differential signal or RS-485 differential signal, for receiving synchronous dynamic control signal, and sends stores synchronized control signal;
Another Memory control IP kernel 3-4, for receiving the RS-422/485 differential digital signal after restructuring, RS-422 differential signal or RS-485 differential signal, for receiving power down control signal, concurrently gives away electric storage control signal;
Network control IP kernel 3-3 comprises MAC layer module, for carrying out flow-control in a full-duplex mode, realizes the sending/receiving of mac frame, the encapsulation/unpack of mac frame and the error detection of mac frame.
In present embodiment, FPGA receives RS-422/485 differential digital signal, RS-422 differential signal or 2 road RS-485 differential signals and carries out data recombination, send RS-422/485 differential digital signal, RS-422 differential signal or the 2 road RS-485 differential signals after restructuring, send stores synchronized control signal and power down storage control signal, also for communicating with extraneous network.
MAC layer module mainly performs flow-control in a full-duplex mode, mac frame realizes sending and receiving function, it mainly operates the encapsulation of mac frame and unpacks and error detection, directly provide the parallel data grabbing card (MII interface) of external physical layer device, physical layer process directly utilizes technical grade PHY device.
Detailed description of the invention five: present embodiment is described see Fig. 1 to 5, the difference of present embodiment and the RS-422/485 communication test monitoring device for automatic missile checkout system described in detailed description of the invention three is, described RS-422 differential signal and RS-485 differential signal are same/Asynchronous Reception.
Detailed description of the invention six: present embodiment is described see Fig. 1 to 5, the difference of present embodiment and the RS-422/485 communication test monitoring device for automatic missile checkout system described in detailed description of the invention three is, it also comprises 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, obtain final sampled data, this sampled data is finally be stored into the data in CF card, after end to be collected, by network, the data of collection is sent to test computer.
Detailed description of the invention seven: the RS-422/485 communication test monitoring method for automatic missile checkout system described in present embodiment, the method comprises the steps:
For gathering the monitored path Shang 16 road RS-422/485 differential signal between equipment under test and test macro, after measurement range selection is carried out to the 16 road RS-422/485 differential signals gathered, the passage at 16 RS-422/485 differential signal places, road is decayed/amplified, then to the signal condition filtering in passage, after meeting the input requirements of analog-digital converter ADC, the sampling to analog signal is realized, the step that the RS-422/485 differential digital signal obtained after sampling exports after magnetoelectricity isolation by analog-digital converter ADC;
For gathering 2 road RS-422 differential signals on the monitored path between equipment under test and test macro or 2 road RS-485 differential signals, and Phototube Coupling is carried out to the 2 road RS-422 differential signals gathered or 2 road RS-485 differential signals, and the step of the RS-422 differential signal exported after treatment or RS-485 differential signal;
The step of data recombination is carried out for receiving RS-422/485 differential digital signal, RS-422 differential signal or RS-485 differential signal, for sending the step of the voltage signal after restructuring, RS-422 differential signal or RS-485 differential signal, for sending the step of stores synchronized control signal and power down storage control signal, also for carrying out with extraneous network the step that communicates;
For storing the step of RS-422/485 differential digital signal, RS-422 differential signal or RS-485 differential signal after restructuring when powering on;
For storing the step of RS-422/485 differential digital signal, RS-422 differential signal or RS-485 differential signal after restructuring when power down.
Detailed description of the invention eight: the difference of present embodiment and the RS-422/485 communication test monitoring method for automatic missile checkout system described in embodiment seven is,
For gathering 2 road RS-422 differential signals on the monitored path between equipment under test and test macro or 2 road RS-485 differential signals, and Phototube Coupling is carried out to the 2 road RS-422 differential signals gathered or 2 road RS-485 differential signals, and the step of the RS-422 differential signal exported after treatment or RS-485 differential signal comprises:
For receiving 2 road RS-485 differential signals on the detected path between equipment under test and test macro, and 2 road RS-485 differential signals are sent 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 macro, and 2 road RS-422 differential signals are sent to the step of light-coupled isolation 1-2;
For isolating 2 road RS-422 differential signals or 2 road RS-485 differential signals, and the signal after isolation is exported to the function IP kernel 3-1 in FPGA3;
For the step of powering to light-coupled isolation 1-2.
Detailed description of the invention nine: the difference of present embodiment and the RS-422/485 communication test monitoring method for automatic missile checkout system described in embodiment seven is,
Described for gathering the monitored path Shang 16 road RS-422/485 differential signal between equipment under test and test macro, after measurement range selection is carried out to the 16 road RS-422/485 differential signals gathered, the passage at 16 RS-422/485 differential signal places, road is decayed/amplified, then to the signal condition filtering in passage, after meeting the input requirements of analog-digital converter ADC, realize the sampling to analog signal by analog-digital converter ADC, the step that the RS-422/485 differential digital signal obtained after sampling exports after magnetoelectricity isolation comprises:
For inputing to the step of selective circuit of measuring range 2-5 after carrying out serioparallel exchange to the monitored path Shang 16 road RS-422/485 differential signal between equipment under test and test macro;
For carrying out measurement range selection to the monitored path Shang 16 road RS-422/485 differential signal between equipment under test and test macro, after the passage at 16 RS-422/485 differential signal places, road is decayed/amplified, be sent to the step of signal condition and filter circuit 2-4;
For carrying out signal condition filtering to Hou 16 road RS-422/485 differential signal of decaying in passage/amplify, after making the input requirements of its analog-digital converter ADC, input to the step of analog-digital converter adc circuit 2-3;
For completing the sampling to analog signal, obtaining RS-422/485 differential digital signal, and being sent to the step of electromagnetic screen 2-1;
For exporting the step of function IP kernel 3-1 after carrying out magnetoelectricity isolation to RS-422/485 differential digital signal to.
Detailed description of the invention ten: the difference of present embodiment and the RS-422/485 communication test monitoring method for automatic missile checkout system described in embodiment seven is,
The described step of carrying out data recombination for receiving RS-422/485 differential digital signal, RS-422 differential signal or RS-485 differential signal, for sending the step of the RS-422/485 differential digital signal after restructuring, RS-422 differential signal or RS-485 differential signal, for sending the step of stores synchronized control signal and power down storage control signal, also for comprising with the step that extraneous network carries out communicating:
For receiving/sending the step of RS-422/485 differential digital signal, RS-422 differential signal or RS-485 differential signal;
For carrying out the step of data recombination to the RS-422/485 differential digital signal received, RS-422 differential signal or RS-485 differential signal, for sending the step of the RS-422/485 differential digital signal after restructuring, RS-422 differential signal or RS-485 differential signal, for sending the step of stores synchronized control signal and power down storage control signal;
For receiving the step of the RS-422/485 differential digital signal after restructuring, RS-422 differential signal or RS-485 differential signal, for receiving synchronous dynamic control signal, and send the step of stores synchronized control signal;
For receiving the step of the RS-422/485 differential digital signal after restructuring, RS-422 differential signal or RS-485 differential signal, for receiving power down control signal, the concurrent step giving away electric storage control signal;
For carrying out flow-control in a full-duplex mode, realize the step of the sending/receiving of mac frame, the encapsulation/unpack of mac frame and the error detection of mac frame.
Claims (10)
1. for the RS-422/485 communication test monitoring device of automatic missile checkout system, it is characterized in that, it comprises 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 differential signal between equipment under test and test macro, after measurement range selection is carried out to the 16 road RS-422/485 differential signals gathered, the passage at 16 RS-422/485 differential signal places, road is decayed/amplified, then to the signal condition filtering in passage, after meeting the input requirements of analog-digital converter ADC, realize the sampling to analog signal by analog-digital converter ADC, the RS-422/485 differential digital signal obtained after sampling exports after magnetoelectricity isolation;
RS-422/485 communication module (1), for gathering 2 road RS-422 differential signals on the monitored path between equipment under test and test macro or 2 road RS-485 differential signals, and Phototube Coupling is carried out to the 2 road RS-422 differential signals gathered or 2 road RS-485 differential signals, and the RS-422 differential signal exported after treatment or RS-485 differential signal;
FPGA (3), data recombination is carried out for receiving RS-422/485 differential digital signal, RS-422 differential signal or RS-485 differential signal, for sending the RS-422/485 differential digital signal after restructuring, RS-422 differential signal or RS-485 differential signal, for sending stores synchronized control signal and power down storage control signal, also for communicating with extraneous network;
DDR memory module (5), for storing RS-422/485 differential digital signal, RS-422 differential signal or RS-485 differential signal after restructuring when powering on;
CF card (4), for storing RS-422/485 differential digital signal, RS-422 differential signal or RS-485 differential signal after restructuring when power down.
2. the RS-422/485 communication test monitoring device for automatic missile checkout system according to claim 1, it is characterized in that, RS-422/485 communication module (1) comprises RS-485 receiver (1-1), light-coupled isolation (1-2), RS-422 receiver (1-3) and insulating power supply (1-4);
2 road RS-485 differential signals for receiving 2 road RS-485 differential signals on the detected path between equipment under test and test macro, and are sent to light-coupled isolation (1-2) by RS-485 receiver (1-1);
2 road RS-422 differential signals for receiving 2 road RS-422 differential signals on the monitored path between equipment under test and test macro, and are sent to light-coupled isolation (1-2) by RS-422 receiver (1-3);
Light-coupled isolation (1-2), for isolating 2 road RS-422 differential signals or 2 road RS-485 differential signals, and exports the function IP kernel (3-1) in FPGA (3) to by the signal after isolation;
Insulating power supply (1-4), for powering to light-coupled isolation (1-2).
3. the RS-422/485 communication test monitoring device for automatic missile checkout system according to claim 1, it is characterized in that, A/D acquisition module (2) comprises 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), inputs to selective circuit of measuring range (2-5) after carrying out serioparallel exchange to the monitored path Shang 16 road RS-422/485 differential signal between equipment under test and test macro;
Selective circuit of measuring range (2-5), for carrying out measurement range selection to the monitored path Shang 16 road RS-422/485 differential signal between equipment under test and test macro, after the passage at 16 RS-422/485 differential signal places, road is decayed/amplified, be sent to signal condition and filter circuit (2-4);
Signal condition and filter circuit (2-4), for carrying out signal condition filtering to Hou 16 road RS-422/485 differential signal of decaying in passage/amplify, after making the input requirements of its analog-digital converter ADC, input to analog-digital converter adc circuit (2-3);
Analog-digital converter adc circuit (2-3), for completing the sampling to analog signal, obtaining RS-422/485 differential digital signal, and being sent to electromagnetic screen (2-1);
Electromagnetic screen (2-1) exports function IP kernel (3-1) to after carrying out magnetoelectricity isolation to RS-422/485 differential digital signal.
4. the RS-422/485 communication test monitoring device for automatic missile checkout system according to claim 1, it is characterized in that, described FPGA (3) comprises function IP kernel (3-1), embedded controller IP kernel (3-2), network control IP kernel (3-3) and two Memory control IP kernels (3-4);
Function IP kernel (3-1), for receiving/sending RS-422/485 differential digital signal, RS-422 differential signal or RS-485 differential signal;
Embedded controller IP kernel (3-2), for carrying out data recombination to the RS-422/485 differential digital signal received, RS-422 differential signal or RS-485 differential signal, for sending the RS-422/485 differential digital signal after restructuring, RS-422 differential signal or RS-485 differential signal, for sending stores synchronized control signal and power down storage control signal;
A Memory control IP kernel (3-4), for receiving the RS-422/485 differential digital signal after restructuring, RS-422 differential signal or RS-485 differential signal, for receiving synchronous dynamic control signal, and sends stores synchronized control signal;
Another Memory control IP kernel (3-4), for receiving the RS-422/485 differential digital signal after restructuring, RS-422 differential signal or RS-485 differential signal, for receiving power down control signal, concurrently gives away electric storage control signal;
Network control IP kernel (3-3) comprises MAC layer module, for carrying out flow-control in a full-duplex mode, realizes the sending/receiving of mac frame, the encapsulation/unpack of mac frame and the error detection of mac frame.
5. the RS-422/485 communication test monitoring device for automatic missile checkout system according to claim 1, is characterized in that, described RS-422 differential signal and RS-485 differential signal are same/Asynchronous Reception.
6. the RS-422/485 communication test monitoring device for automatic missile checkout system according to claim 1, it is characterized in that, it also comprises ethernet PHY chip (6), for realizing the network service between FPGA (3) and host computer.
7., for the RS-422/485 communication test monitoring method of automatic missile checkout system, it is characterized in that, the method comprises the steps:
For gathering the monitored path Shang 16 road RS-422/485 differential signal between equipment under test and test macro, after measurement range selection is carried out to the 16 road RS-422/485 differential signals gathered, the passage at 16 RS-422/485 differential signal places, road is decayed/amplified, then to the signal condition filtering in passage, after meeting the input requirements of analog-digital converter ADC, the sampling to analog signal is realized, the step that the RS-422/485 differential digital signal obtained after sampling exports after magnetoelectricity isolation by analog-digital converter ADC;
For gathering 2 road RS-422 differential signals on the monitored path between equipment under test and test macro or 2 road RS-485 differential signals, and Phototube Coupling is carried out to the 2 road RS-422 differential signals gathered or 2 road RS-485 differential signals, and the step of the RS-422 differential signal exported after treatment or RS-485 differential signal;
The step of data recombination is carried out for receiving RS-422/485 differential digital signal, RS-422 differential signal or RS-485 differential signal, for sending the step of the voltage signal after restructuring, RS-422 differential signal or RS-485 differential signal, for sending the step of stores synchronized control signal and power down storage control signal, also for carrying out with extraneous network the step that communicates;
For storing the step of RS-422/485 differential digital signal, RS-422 differential signal or RS-485 differential signal after restructuring when powering on;
For storing the step of RS-422/485 differential digital signal, RS-422 differential signal or RS-485 differential signal after restructuring when power down.
8. the RS-422/485 communication test monitoring method for automatic missile checkout system according to claim 7, it is characterized in that, for gathering 2 road RS-422 differential signals on the monitored path between equipment under test and test macro or 2 road RS-485 differential signals, and Phototube Coupling is carried out to the 2 road RS-422 differential signals gathered or 2 road RS-485 differential signals, and the step of the RS-422 differential signal exported after treatment or RS-485 differential signal comprises:
For receiving 2 road RS-485 differential signals on the detected path between equipment under test and test macro, and 2 road RS-485 differential signals are sent 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 macro, and 2 road RS-422 differential signals are sent to the step of light-coupled isolation (1-2);
For isolating 2 road RS-422 differential signals or 2 road RS-485 differential signals, and the signal after isolation is exported to the function IP kernel (3-1) in FPGA (3);
For the step of powering to light-coupled isolation (1-2).
9. the RS-422/485 communication test monitoring method for automatic missile checkout system according to claim 7, it is characterized in that, described for gathering the monitored path Shang 16 road RS-422/485 differential signal between equipment under test and test macro, after measurement range selection is carried out to the 16 road RS-422/485 differential signals gathered, the passage at 16 RS-422/485 differential signal places, road is decayed/amplified, then to the signal condition filtering in passage, after meeting the input requirements of analog-digital converter ADC, the sampling to analog signal is realized by analog-digital converter ADC, the step that the RS-422/485 differential digital signal obtained after sampling exports after magnetoelectricity isolation comprises:
For inputing to the step of selective circuit of measuring range (2-5) after carrying out serioparallel exchange to the monitored path Shang 16 road RS-422/485 differential signal between equipment under test and test macro;
For carrying out measurement range selection to the monitored path Shang 16 road RS-422/485 differential signal between equipment under test and test macro, after the passage at 16 RS-422/485 differential signal places, road is decayed/amplified, be sent to the step of signal condition and filter circuit (2-4);
For carrying out signal condition filtering to Hou 16 road RS-422/485 differential signal of decaying in passage/amplify, after making the input requirements of its analog-digital converter ADC, input to the step of analog-digital converter adc circuit (2-3);
For completing the sampling to analog signal, obtaining RS-422/485 differential digital signal, and being sent to the step of electromagnetic screen (2-1);
For exporting the step of function IP kernel (3-1) after carrying out magnetoelectricity isolation to RS-422/485 differential digital signal to.
10. the RS-422/485 communication test monitoring method for automatic missile checkout system according to claim 7, it is characterized in that, the described step of carrying out data recombination for receiving RS-422/485 differential digital signal, RS-422 differential signal or RS-485 differential signal, for sending the step of the RS-422/485 differential digital signal after restructuring, RS-422 differential signal or RS-485 differential signal, for sending the step of stores synchronized control signal and power down storage control signal, also for comprising with the step that extraneous network carries out communicating:
For receiving/sending the step of RS-422/485 differential digital signal, RS-422 differential signal or RS-485 differential signal;
For carrying out the step of data recombination to the RS-422/485 differential digital signal received, RS-422 differential signal or RS-485 differential signal, for sending the step of the RS-422/485 differential digital signal after restructuring, RS-422 differential signal or RS-485 differential signal, for sending the step of stores synchronized control signal and power down storage control signal;
For receiving the step of the RS-422/485 differential digital signal after restructuring, RS-422 differential signal or RS-485 differential signal, for receiving synchronous dynamic control signal, and send the step of stores synchronized control signal;
For receiving the step of the RS-422/485 differential digital signal after restructuring, RS-422 differential signal or RS-485 differential signal, for receiving power down control signal, the concurrent step giving away electric storage control signal;
For carrying out flow-control in a full-duplex mode, realize the step of the sending/receiving of mac frame, the encapsulation/unpack of mac frame and the error detection of mac frame.
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