CN102495779A - Integrated sensor RFID (radio frequency identification device) system and mixed-mode interface performance test method thereof - Google Patents
Integrated sensor RFID (radio frequency identification device) system and mixed-mode interface performance test method thereof Download PDFInfo
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Abstract
The invention discloses an integrated sensor RFID (radio frequency identification device) system and a mixed-mode interface performance test method thereof. The method comprises the following steps of: connecting a logical analysis set to the mixed-mode interface of the integrated sensor RFID system, wherein the logical analysis set comprises an LA_Probe_E measurement line, an LA6000 logical analyzer and a host, an interface transmission signal goes through the measurement line, the logical analyzer and the host, and is decoded by upper computer software to obtain the characteristics of the interface transmission signal; checking with a signal transmission protocol to obtain the plug-and-play performance parameters of the mixed-mode interface; performing electrostatic discharge destructive test on a host interface and a sensor module interface on a mixed-mode interface bus respectively; and re-detecting the quality of independent communication and joint communication by using a plug-and-play validity test method to obtain an estimation result of the hot-plug performance of the mixed-mode interface. The performance indexes of the mixed-mode interface tested by the method mainly include plug-and-play speed, plug-and-play success rate and hot-plug success rate; and the plug-and-play validity and reliability of the mixed-mode interface can be monitored through the performance indexes, thereby conforming to the interface performance test requirements required by the development trend of the integrated intelligent sensor RFID system.
Description
Technical field
The present invention relates to intelligence sensor interface performance test field, relate in particular to a kind of integrated sensor rfid system and this system's mixed mode interface performance test method.
Background technology
Along with this year the sensing net in commercial Application, carried out energetically, based on the networked smart sensor of IEEE 1451 standards, standardization, integrated level are high, low cost and other advantages owing to have, and have obtained professional person's extensive attention.Especially be applicable to the appearance of the IEEE1451.4 mixed mode interface standard of mixed mode transmitter, network adapter (NCAP); Make increasing researchist and enterprise put in the research of mixed mode interface, the device fabrication field, various intelligent sensing equipment based on the standard hybrid mode interface continue to bring out.This standard realizes the sensor plug and play through unified sensor communication interfaces, supports the establishment of intelligent transducer, adopts the simplification and the deployment of the design philosophy realization intelligent transducer of minimum memory span.For embodying higher performance, guarantee the output data of sensor and the high-quality and the correctness of input signal, IEEE 1451.4 standards have been used and have been compared early stage IEEE1451 standard communication interface still less, have simplified the setting and the maintenance of surveying instrument system.Yet; Different design proposals and manufacture craft have caused the intelligent sensing equipment mixed mode interface capability of different brands and model that significant difference is arranged; And the interface capability parameter of different mixed mode interface intelligent sensing equipment institute nominals all is based on different application requirements and method of testing; Relatively lack a unified reference platform between the product, this carries out with regard to giving the performance of like product performance that effectively just laterally the comparison and the system integration are used and brought difficulty each other.
The intelligence sensor interface capability is to ensure effective output data of sensor and the basis that receives signal.Validity and reliability when wherein, the key of test I EEE 1451 intelligence sensor interface capabilities is the access of test intelligence sensor.At present, still relatively more blank to the research of IEEE 1451 intelligence sensor interface performance tests, and the research of intelligent sensing network in recent years and use upsurge, especially RFID sensing network, the interface of intelligence sensor there is urgent performance requirement.Therefore, set up a kind of required interface performance test method of integrated intelligent sensor rfid system development trend that meets and have important Research Significance and perspective.
Summary of the invention
For solving above-mentioned middle problem and the defective that exists, the invention provides a kind of integrated sensor rfid system and this system's mixed mode interface performance test method.Said technical scheme is following:
A kind of integrated sensor rfid system mixed mode interface performance test method comprises:
Interface performance test requirement when being articulated on the 1-wire bus according to single sensor to be measured is connected through the mixed mode interface single sensor to be measured with integrated sensor RFID equipment;
Gather mixed mode interface digital signal in the sensor access procedure to be measured through logic analyser, and this digital signal is deciphered processing;
Digital data transmission agreement in decoded signal and the intelligence sensor mixed mode interface standard is done verification; Obtain mixed mode interface plug and play performance parameter; And according to 1-wire bus identification URN and read the command sequence in the TEDS process, judge whether mixed mode interface plug and play is normal;
For the equipment of normal realization mixed mode interface plug and play, carry out plug and play recognition time measurement to deciphering the back signal;
Mixed mode interface to satisfying the test of plug and play recognition success ratio carries out reliability testing.
A kind of integrated sensor rfid system, said system comprises RFID reader module, integrated sensor RIFD label node module, said integrated sensor RFID label node module comprises intelligence sensor module STIM and network adapter NCAP;
Said STIM acquisition front end integrated the mixed mode interface of intelligence sensor, and be connected with NCAP through this mixed mode interface;
Said NCAP has incorporated wireless senser RF Transmit-Receive Unit in NCAP information processing rear end, thereby in order to support Zigbee communication to make up multihop network;
Said RFID reader module comprises microprocessor, RFID reader, antenna, power supply and interface thereof; Wherein the RFID reader realize to the energy transport of RFID label with communicate by letter; Said interface realize with the rear end monitoring platform between communicate by letter.
The beneficial effect of technical scheme provided by the invention is:
Through application plug and play recognition speed, recognition success ratio the mixed mode interface is carried out quantitative evaluation, realized validity test integrated sensor rfid system mixed mode interface capability;
Through using the hot plug success ratio mixed mode interface is carried out qualitative evaluation, realized reliability testing integrated sensor rfid system mixed mode interface capability.
Description of drawings
Fig. 1 is an integrated sensor rfid system mixed mode interface performance test method flow diagram;
Fig. 2 is an integrated sensor rfid system mixed mode interface performance test schematic diagram;
Fig. 3 is integrated sensor rfid system figure;
Fig. 4 is a plug and play performance test process flow diagram;
Fig. 5 is a hot plug performance test process flow diagram.
Embodiment
For making the object of the invention, technical scheme and advantage clearer, will combine accompanying drawing that embodiment of the present invention is done to describe in detail further below:
Referring to Fig. 1, present embodiment provides a kind of integrated sensor rfid system mixed mode interface performance test method, said method comprising the steps of:
Interface capability when step 10 is articulated on the bus according to single sensor to be measured is connected through the mixed mode interface single sensor to be measured with integrated sensor RFID equipment;
Interface capability when above-mentioned sensor to be measured is articulated on the bus is the evaluation of on the basis that does not change interface algorithm and interface locking equipment quantity, carrying out.
It is through digital signal being uploaded to main frame, through upper computer software the digital signal of gathering being deciphered processing that its decoding is handled.
Said intelligence sensor adopts IEEE 1451.4 intelligence sensors; Command sequence according to the 1-wire bus; Bus initialization order, bus host function request command and the bus line command checking mixed mode digital interface identification URN successively and read in the TEDS process are followed data etc., check whether mixed mode interface plug-and-play feature normally realizes.
The mixed mode interface that step 50 pair satisfies the test of plug and play recognition success ratio carries out reliability testing;
Adopt ESD gun respectively sensor assembly interface, 1-wire bus host interface to be carried out contact discharge, atmospherical discharges destructive test; And adopt plug and play validity test way to carry out independent communication and detect test interface hot plug performance with the associating communication quality.
Before carrying out above-mentioned steps 10, also comprise: on integrated sensor rfid system mixed mode interface, connect the logic analysis external member, comprising: slotted line, logic analyser, main frame, be equipped with the logical signal analysis software on the main frame.
Referring to Fig. 2; Test philosophy for integrated sensor rfid system mixed mode interface performance test method; At first through on integrated sensor rfid system mixed mode interface, connecting the logic analysis external member; Comprise LA_Probe_E slotted line, LA6000 logic analyser, main frame; The interface transmission signals obtains interface transmission signals characteristic through slotted line, logic analyser, main frame by the upper computer software decoding, does verification with signal transfer protocol and obtains mixed mode interface plug and play performance parameter; Secondly through HPI on the mixed mode interface bus and sensor assembly interface are carried out the esd immunity test respectively and carry out independent communication and the detection of associating communication quality, obtain the hot plug performance evaluation result of mixed mode interface.
Referring to Fig. 3, be the integrated sensor rfid system, this system is divided into the double-layer structure of RFID reader module and integrated sensor RIFD label node module composition, and this system realizes bottom on-the-spot data acquisition and processing.Integrated sensor RFID label node adopts IEEE1451.4 intelligence sensor mixed mode interfacing; Can be divided into intelligence sensor module (Smart Transducer Interface Module; STIM) and network adapter (Networked Capable Application Processor; NCAP), i.e. mixed mode interface bus main frame; Adopt in the WSN field self-organizing network that makes up a multi-hop based on the Zigbee procotol of IEEE 802.15.4; WSN network node (integrated sensor RFID label node module) is integrated passive RFID tags and sensor is responsible for gathering Item Information and environment parameter respectively; Wherein, STIM acquisition front end integrated mixed mode interface among the IEEE 1451.4, realized the expansion of the intelligence of traditional analog formula sensor; In addition, NCAP has incorporated wireless senser RF Transmit-Receive Unit in NCAP information processing rear end, thereby in order to support Zigbee communication to make up multihop network.RFID reader module in the integrated sensor RFID equipment comprises microprocessor, RFID reader, antenna, power supply and other interfaces; The RFID reader can realize to the energy transport of RFID label with communicate by letter, other interfaces can realize with the rear end monitor supervision platform between communicate by letter.
Referring to Fig. 4, be plug and play performance test process flow diagram, press IEEE 1451.4 intelligence sensor mixed mode interface data transmission agreements, but the testing process separated into two parts, URN identification and TEDS identification.The position and the token meaning of the mixed mode interface validity test Petri pessimistic concurrency control that obtains according to above design can be expressed as:
P1: logic analyser starts;
P2: sensor assembly inserts, waits for 5 seconds;
P3: upper computer software zlglogic has gathered echo shape;
P4: decoding is accomplished;
P5a: search ROM success;
P5b: search ROM is unsuccessful;
P6a: check results is correct, and the URN value has been charged to active sheet;
P6b: check results mistake, active sheet are recorded as " check errors ";
P7a: coupling ROM success;
P7b: coupling ROM is unsuccessful;
P8a: read the application register success;
P8b: it is unsuccessful to read application register;
P9a: coupling ROM success;
P9a: coupling ROM is unsuccessful;
P10a: read data storer success;
P10b: the read data storer is unsuccessful;
P11a: check results is 0, and verification is correct, and basic TEDS, standard TEDS and user area TEDS have charged to active sheet;
P11b: the current array of form is recorded as " reading failure ";
P12: the recognition time has been charged to active sheet;
P13a: plug and play success;
P13b: plug and play failure.
Transition are implemented meaning and can be expressed as:
T1: connect mixed mode interface bus main frame, slotted line, logic analyser and main frame, enable logic analyser according to the test block diagram;
T2: insert sensor assembly;
T3: the waveform acquisition in the 1-wire bus is returned through upper computer software zlglogic;
T4: click tools-plugin manager accesses the plugin manager dialog box, chooses 1-wire bus analysis plug-in unit, and click is provided with button ejection 1-wire bus encoding/decoding dialog box is set.Be provided with that signal name is 0ne-wire in the dialog box, speed is standard or at a high speed, is provided with to accomplish back click confirming button and can accomplish decoding;
T5: whether the beginning of inquiry decoded result successfully realizes search ROM function; Wherein bus host at first sends reset pulse " RESET PULSE "; Sensor assembly sends transponder pulse " PRESENCEPULSE "; Bus host sends search ROM order " Search ROM [F0H] " then, and last bus host reads in 8 byte URN successively;
T6: adopt the standard C RC method of calibration of generator polynomial x8+x5+x4+1 that URN is carried out contrary verification, wherein last byte is the CRC check sign indicating number, the record check results;
T7: continue the inquiry decoded result and whether successfully realize coupling ROM function; Wherein bus host sends reset pulse " RESET PULSE "; Sensor assembly sends transponder pulse " PRESENCE PULSE "; Bus host sends coupling ROM order " Match ROM [55H] " then, and last bus host sends 8 byte URN;
T8: continue the inquiry decoded result and whether successfully realize reading the application register function; And record measured value; Wherein bus host sends reset pulse " RESET PULSE ", and sensor assembly sends transponder pulse " PRESENCE PULSE ", and bus host sends and reads application register order " Read ApplicationRegister [C3H] " then; Bus host sends 8 bit data read start addresses again, and last bus host reads in the basic TEDS of 8 bytes;
T9: continue the inquiry decoded result and whether successfully realize coupling ROM function; Wherein bus host sends reset pulse " RESET PULSE "; Sensor assembly sends transponder pulse " PRESENCE PULSE "; Bus host sends coupling ROM order " Match ROM [55H] " then, and last bus host sends 8 byte URN;
T10: continue the inquiry decoded result and whether successfully realize reading the application register function; And record measured value; Wherein bus host sends reset pulse " RESET PULSE "; Sensor assembly sends transponder pulse " PRESENCE PULSE ", and bus host sends and reads EEPROM order " ReadMemory [0FH] " then, and bus host sends 8 bit data read start addresses again; Last bus host reads in 32 byte datas, comprising the verification of first byte with and the standard TEDS and the user area TEDS of remaining 31 bytes;
T11: the TEDS data are carried out verification and contrary check, with verification and byte and basic TEDS, standard TEDS and each byte not-carry addition of user TEDS, record check results;
T12: decoded result is carried out time series analysis, analyzes the initial moment when reset pulse begins first, the finish time be bus host read in 32 byte EEPROM data the end constantly, the mistiming of the initial moment with the finish time is recorded as the recognition time;
T13: logging test results.
Devices to test is repeated above-mentioned experiment 10 times, and the ratio that number of success is accounted for experiment number is charged in the test report form, and gets the recognition speed of all recognition time averages of successfully testing as Devices to test.
Referring to Fig. 5, be hot plug performance test flow process, comprise atmospherical discharges test and contact discharge test.
The atmospherical discharges testing procedure comprises: 1. static gun voltage is transferred to ± 15KV, select the round end discharge head for use, adopt pattern air discharge; 2. with the nearly sensor assembly mixed mode of rifle head rest interface, it is scanned with positive voltage; 3. with the nearly sensor assembly interface of rifle head rest, it is scanned with negative voltage; Is connected with the intact bus host interface that does not carry out esd immunity by sensor assembly interface after the esd immunity test and communicate, and adopt plug and play validity test method to check communication quality fine or not; 5. the interface to mixed mode interface bus main frame repeats above-mentioned experiment, is connected with a sensor assembly that does not carry out the esd immunity test simultaneously, adopts plug and play validity test method communication check communication quality quality; 6. tested sensor assembly is connected with tested bus host and communicates employing plug and play validity test method check communication quality quality communication check communication quality quality.
The contact discharge testing procedure comprises: 1. static gun voltage is transferred to ± 8KV, select the tip discharge head for use, adopt the contact discharge pattern; 2. with the nearly sensor assembly interface of rifle head rest, with positive voltage docking port discharge 10 times, 0.5s at interval; 3. with the nearly sensor assembly interface of rifle head rest, with negative voltage docking port discharge 10 times, 0.5s at interval; 4. the sensor assembly interface is connected with the intact bus host interface that does not carry out the esd immunity test and communicates employing plug and play validity test method check communication quality quality; 5. the bus host interface is repeated above-mentioned experiment, be connected with a sensor assembly interface that does not carry out the esd immunity test simultaneously, adopt the quality of plug and play validity test method communication check communication quality; 6. tested sensor assembly is connected with tested bus host, adopts plug and play validity test method communication check communication quality quality.
After aforesaid operations is accomplished,, show that then the mixed mode interface through the interface immunity experiment, promptly has charged hot-swap capabilities if the tested equal communication of each interface is normal and communication process is no abnormal; Otherwise then this mixed mode interface does not possess hot-swap capabilities.
The above is merely preferred embodiment of the present invention, and is in order to restriction the present invention, not all within spirit of the present invention and principle, any modification of being done, is equal to replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (6)
1. integrated sensor rfid system mixed mode interface performance test method is characterized in that said method comprises:
Interface performance test requirement when being articulated on the 1-wire bus according to single sensor to be measured is connected through the mixed mode interface single sensor to be measured with integrated sensor RFID equipment;
Gather mixed mode interface digital signal in the sensor access procedure to be measured through logic analyser, and this digital signal is deciphered processing;
Digital data transmission agreement in decoded signal and the intelligence sensor mixed mode interface standard is done verification; Obtain mixed mode interface plug and play performance parameter; And according to 1-wire bus identification URN and read the command sequence in the TEDS process, judge whether mixed mode interface plug and play is normal;
For the equipment of normal realization mixed mode interface plug and play, carry out plug and play recognition time measurement to deciphering the back signal;
Mixed mode interface to satisfying the test of plug and play recognition success ratio carries out reliability testing.
2. method according to claim 1 is characterized in that, said mixed mode interface effective performance test adopts plug and play recognition speed and plug and play recognition success ratio as evaluation index; The reliability testing of mixed mode interface adopts the hot plug success ratio as evaluation index.
3. method according to claim 1 and 2 is characterized in that, said mixed mode interface validity test adopts the LA6000 logic analyser to extract plug and play procedural interface transmission signals, and it is to realize through upper computer software that said digital signal decoding is handled.
4. method according to claim 1 is characterized in that, said intelligence sensor adopts the IEEE1451.4 intelligence sensor.
5. method according to claim 1; It is characterized in that; Said method comprises that also the employing ESD gun carries out contact discharge to sensor assembly interface, 1-wire bus host interface respectively and atmospherical discharges destroys; And adopt said plug and play validity test to carry out independent communication and detect test interface hot plug performance with the associating communication quality.
6. integrated sensor rfid system; It is characterized in that; Said system comprises RFID reader module, integrated sensor RIFD label node module, and said integrated sensor RFID label node module comprises intelligence sensor module STIM and network adapter NCAP;
Said STIM acquisition front end integrated the mixed mode interface of intelligence sensor, and be connected with NCAP through this mixed mode interface;
Said NCAP has incorporated wireless senser RF Transmit-Receive Unit in NCAP information processing rear end, thereby in order to support Zigbee communication to make up multihop network;
Said RFID reader module comprises microprocessor, RFID reader, antenna, power supply and interface thereof; Wherein the RFID reader realize to the energy transport of RFID label with communicate by letter; Said interface realize with the rear end monitoring platform between communicate by letter.
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| CN106199377A (en) * | 2016-06-24 | 2016-12-07 | 福州瑞芯微电子股份有限公司 | The detection device of a kind of chip interface and detection method thereof |
| CN109655679A (en) * | 2017-10-11 | 2019-04-19 | 许继集团有限公司 | A kind of modularization high-tension apparatus plug & play sensor apparatus and system |
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| CN102495779B (en) | 2014-04-16 |
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