Summary of the invention
In view of the above-mentioned problems, the present invention provides a kind of detection methods for communication encryption version.
A kind of detection method of coded communication plate, includes the following steps: step (1): coded communication plate is shorted before powering on and surveysExamination；Step (2): coded communication plate detects environment configurations；Step (3): coded communication plate dilatation card slot detection；Step (4): encryptionThe detection of communication board circumscribed USB interface；Step (5): coded communication plate indicator light detection；Step (6): coded communication plate data communicationDetection；Step (7): coded communication plate business interface detection；Step (8): external equipment data communication detection；The step (5)In indicator light include power supply indicator detection and network interface indicator light detection.
Further, the step (1) is to carry out needle with multimeter to the power supply foot of the power interface on coded communication plateThe detection of foot ground short circuit.
Further, step (2) environment configurations include that configuration RJ45 network interface turns Du Pont's 8P patchcord, and passes through switchingCoded communication plate is connect by line with double netcard computer.
Further, the step (3) includes configuring SD card, upper electro-detection coded communication to the SD card slot of coded communication plateThe power-up of plate SD card slot and read/write situation.
Further, the step (4) includes that configuration 4P Du Pont turns usb line, 4P Du Pont interface and coded communication plateConnection, USB interface connect USB flash disk, upper electro-detection coded communication plate USB external interface behavior pattern.
Further, the step (5) powers to coded communication plate including the use of 12V DC power supply, checks power supply instructionLamp working condition.
Further, the step (5) further includes checking the connection of double netcard computer network and network port indicator work feelingsCondition and coded communication expanded metals network interface indicator working condition.
Further, the step (6) includes sending data packet to coded communication plate by computer, detects coded communicationPlate data communication situation.
Further, the step (7) includes by standard encrypted communication plate, coded communication plate to be measured and 12V regulated power supplyCarry out Series detectors communication board signal intelligence to be encrypted.
Compared with prior art, just some has the beneficial effect that provide and respectively connects component, each function for coded communication plateCan working condition under interface and use state, where the problem of capable of really finding coded communication plate, coded communication plateDetection method it is simple, easily and fast, it is practical, can accurately detect failure cause and position, more to later period depot repairIt is convenient.
Specific embodiment
A specific embodiment of the invention is described in detail with reference to the accompanying drawing.
Test environment.
Test natural environment requirement: should be under normal test atmosphere, i.e. temperature: -20 DEG C~+60 DEG C；It is relatively wetDegree: within 65%；Air pressure: 86kPa~106kPa.
Test hardware JA(junction ambient) requirement: 1, double netcard computer, D.C. regulated power supply 1,8G capacity USB flash disk 1,8GSD storage card 2 is opened, 1, single head XH2.54-2P power supply line, Du Pont 8P turn RJ45 patchcord 2, Du Pont 4P turns USB interfacePatchcord 1 (shown in Fig. 1).
Production RJ45 connector turns Du Pont 8P busbar patchcord, allocation of computer double netcard, and double RJ4 crystal heads are inserted into respectivelyNetwork interface card network outlet, double Du Pont 8P busbars are inserted into the coded communication plate Du Pont 10P row tunnel needle Eth1 network interface X1 and Du Pont 8P respectivelyArrange needle Eth2 service network port X2.
Prepare 8G capacity SD storage card two to open, 2 SD card slots of coded communication board J8, J9 is inserted into respectively, for detectingCoded communication board SD card slot reading and writing data performance, SD card are that configuration encryption and decryption code key uses.
Production Du Pont 4P busbar socket turns USB socket cable, prepares 8G memory capacity USB flash disk；The insertion of 4P Du Pont busbar end addsNeedle interface is arranged by the Du Pont that close communication board detent number is J4, and USB socket interface end is plugged 8G storage U disk, and detection encryption is logical after powering onBelieve plate USB external interface performance, reading and writing data performance, USB flash disk interface is the use of later period Function Extension.
The supply input electric power connection line that single head specification is XH2.54-2P is made, insertion coded communication plate supply input is insertedSeat J6 interface, the other end connect 12V DC regulated power supply output interface.
Test item and index.
| Test item | Index |
| 1, earthing test 2, network interface test 3, encryption and decryption connecting test 4, USB flash disk test 5, SD card slot test 6, LED light test | Normal use |
Testing procedure.
Earthing test: being adjusted to resistance grade for multimeter, will wherein a black test pencil contact with GND1, another Zhi Hongse tablePen is contacted with the power supply foot J6 device anode of coded communication plate；General-purpose meter reading, that is, resistance value at this time, resistance value allow in regulationRange is then considered as qualification with interior, if resistance value is too small or is zero, pcb board has shorted to earth phenomenon, handles as defective products, toAnti- factory's maintenance.
Environmental requirement connection coded communication plate is built in test as shown in Figure 1, opens measuring and calculation machine, it is steady to press 12V DCVoltage source exports button, checks coded communication plate green power supply indicator light, and lamp is bright normal for power-up, can carry out follow-up test workMake.
Test method of the invention is described further with reference to the accompanying drawing.
Coded communication plate is integrated by main control chip, data communication interface, encrypted card, encrypted U disk and attached operating circuitThe high-tech communication products of one usually use in pairs；This product is typically mounted at the link of wired wireless transmission working methodThe communication information is encrypted in centre, the safety of transmission link information is confirmed, using with extremely strong specific aim.
By to network data interface X1 X2, SD card slot J8 J9, circumscribed USB mouth J4, working station indicator D1 D2D7 D8 D10 D11 D12 D13 the projects such as D14 and encryption and decryption test, confirm that the Interfaces connectivity of product can be reliable, workStablize normal.
As shown in Fig. 2 process, by 2 RJ45 network interfaces of computer double netcard respectively with the X1 interface and X2 of coded communication plateInterface connection, checks whether computer double netcard network interface is connect with the hardware of coded communication plate normal；Coded communication plate normally connectsAfter connecing, local network connection display in the computer display lower right corner is had connected, network interface card network interface and coded communication plate 8P Du Pont network interfaceD11 D12, D13 D14 indicate portable lamp flashing, and confirmation computer and the network connection of coded communication plate are normal, otherwise recording exceptionalSituation carries out product classification differentiation.
As shown in Fig. 3 process, after the network connection of coded communication plate is normal, it is necessary to carry out data transmission performance test；Because addingThe MAC Address of burning and be provided with default ip address when the design production of close communication board, the test of this step based on computer with plusClose communication board establishes cyberrelationship, completes data transmission performance testing by transmitting and receiving data packet；Test can pass through ping IPEqual orders execute, and the integrality and delay value for sending and receiving data packet meet the requirements, then data communication and hardware are normal, if anyThe abnormal phenomenon such as packet loss or delay, then recording exceptional situation, carries out product classification and sentences.
Coded communication plate designs two J8 and J9 of SD card slot, and major function is to store pre-set encryption data and secretKey；SD card slot is plugged SD storage card respectively, and after 5 seconds, reading and writing data indicator light D10 flashes flicking RESET key after being always on, and differentiatesWhether storing card data readwrite performance is normal；
The design of coded communication plate can one J4 of circumscribed USB socket, this interface is installed on inside equipment cabinets in coded communication boardWhen, it is used as the additional contiguity mouth of cabinet, major function is the supplement of SD storage card encryption data and code key and temporarily changes secretKey uses when instructing；After flicking RESET key 3 seconds, USB flash disk reading and writing data indicator light D8 is observed, flashing shows USB flash disk after being always onTest read-write data are normal.
As shown in Fig. 4 process, using the coded communication plate being provided with as standard component, encrypted card is inserted into mark respectivelyQuasi- part plate J8 J9 card slot and Board Under Test J8 J9 card slot, be separately connected standard component plate data traffic interfaces X2 with Du Pont 8P busbar lineWith Board Under Test data traffic interfaces X2；After power-up connection is normal, at the same flicking standard component and 3 paper money clock of measured piece PROG key, standardPart and measured piece encryption and decryption indicator light D1 D2 be always on simultaneously after flash, verifying coded communication plate standard component and tested coded communicationPlate encryption and decryption service channel is normal, and encryption and decryption card physical communication is normal.
Connection cables and storage card, USB flash disk are removed in recording of encrypted communication board test process, power-off, are differentiated quality and are classified intoLibrary.