CN104993848A - Multi-mode information perception integration identification equipment - Google Patents

Abstract

The invention relates to short-distance multi-mode information perception integration identification equipment. The equipment is characterized in that the identification equipment comprises an integrated multi-mode composite antenna, a multi-band-frequency radio frequency information transceiver component, an interface circuit and a data processing unit; the integrated multi-mode composite antenna comprises an integrated three-mode directional antenna with consistent radiation angles; a first mode, a second mode and a third mode correspond to a first frequency, a second frequency and a third frequency respectively; the first mode is used for receiving a wireless signal carrying a first electronic identification; the second mode is used for receiving a wireless signal carrying a second electronic identification; and the third mode is used for receiving a wireless signal carrying a third electronic identification. By using the equipment of the invention, a problem that vehicle electronic identifications with different frequency ranges can be uniformly accessed at the same place can be solved.

Description

A kind of multi-mode information Perception integration identification equipment

Technical field

The present invention relates to technical field of RFID, particularly relate to a kind of multimodal REID.

Background technology

In transportation industry, in order to realize vehicle management and drive-in toll, on automobile, the electronic mark of wireless communication ability can be had by tool for mounting.From technical characterstic, these electronic marks have three kinds of forms: radio-frequency (RF) tag (RFID), wireless sense network (WSN) transport module, 2G/3G/4G mobile communication module.Wherein radio-frequency (RF) tag and WSN transport module belong to the short distance micropower communication technology, and mobile communication module belongs to Long-distance Transmission Technologies.Compared with mobile communication, short-distance wireless communication because frequency spectrum is easy to use, application cost is cheap, having good prospects of transportation industry large-scale application.

From frequency spectrum angle, current short haul connection adopts frequency spectrum to mainly contain 800/900MHz, 2.4GHz and 5.8GHz.In China, 840 ~ 845MHz of uhf band and 920 ~ 925MHz is divided into the special frequency range of passive RFID; What 2.4GHz frequency range (2400 ~ 2483.5MHz) belonged to ISM exempts from licensed band, and multiclass short-range communication applications coexists; 5.8GHz frequency range (5725 ~ 5850MHz) is also exempt from licensed spectrum resource, the legal short-range communication applications of several large classes is allowed to coexist, and highlightedly can be applied to traffic administration, the ETC system of current traffic and transportation sector make use of partial frequency spectrum resource wherein.

There is the situation that different vehicle installs different electronic mark, multiclass electronic mark installed by same vehicle in the prior art, make the unified management of information of vehicles become a difficult problem.Because the communication frequency of electronic mark is mainly positioned on several fixing open frequency range (800/900MHz, 2.4GHz and 5.8GHz), and each frequency range is the narrow band channel of fixed standard.Above-mentioned several steady job frequency range is apart from each other, if therefore use one cover the broadband radio system of 800MHz ~ 5.8GHz and be unfavorable for obtaining high signal gain and good directional transmissions characteristic in special frequency channel, and excessive bandwidth can be introduced larger band and disturbs outward, increase signal transacting work difficulty, and remarkable increase equipment complexity and manufacture maintenance cost.Based on the relevant issues that prior art exists, the present invention is intended to solve in same place by the problem of unified for the vehicle electric of different frequency range mark access.

Summary of the invention

In view of above-mentioned analysis, the present invention aims to provide a kind of multi-mode information Perception integration identification equipment, in order to solve the problem of the unified access of existing same place different frequency range electronic mark.

Object of the present invention is mainly achieved through the following technical solutions:

A kind of short distance multi-mode integration identification equipment, it is characterized in that, described identification equipment comprises integrated multi-mode composite antenna, multi-frequency band radio-frequency information transmit-receive assembly, interface circuit, and data processing unit; Wherein integrated multi-mode composite antenna comprises the consistent integrated three-mode directional antenna of angle of radiation, first mode, the second pattern, and three-mode is corresponding first frequency range respectively, second frequency, the 3rd frequency; Described first mode carries the wireless signal of the first electronic mark for receiving; Described second pattern is for receiving the wireless signal carrying the second electronic mark; Described three-mode carries the wireless signal of the 3rd electronic mark for receiving; Described integrated multi-mode composite antenna is connected with described multi-frequency band radio-frequency information transmit-receive assembly, and described multi-frequency band radio-frequency information transmit-receive assembly comprises first frequency transmitting-receiving subassembly, second frequency transmitting-receiving subassembly, and the 3rd frequency transmitting-receiving subassembly; Described multi-frequency band radio-frequency information transmit-receive assembly is connected with described data processing unit by interface circuit, the information that described data processing unit receives for the treatment of described integrated multi-mode composite antenna.

Preferably, described first frequency is the frequency in the uhf band of 840 ~ 845MHz and 920 ~ 925MHz; Second frequency is the frequency in the 2.4GHz frequency range of 2400 ~ 2483.5MHz; Described 3rd frequency is the 5.8GHz frequency range medium frequency of 5725 ~ 5850MHz.

Preferably, described first electronic mark is electronic license plate mark ERI, and described second electronic mark is that vehicle-mounted node identification WSN-T is applied in the intelligent transportation in urban transportation mark, and described 3rd electronic mark is drive-in toll mark ETC.

Preferably, the size of described integrated multi-mode composite antenna is not more than 650*450mm.

Preferably, described data processing unit is used for the first electronic mark, described second electronic mark, and described 3rd electronic mark is converted into described identical signal format.

Preferably, described integrated multi-mode composite Antenna Operation is when first mode, the main lobe gain of antenna is not less than 10dBi, during the second pattern, the main lobe gain of antenna is for being not less than 6dBi, when being operated in three-mode, the main lobe gain of antenna is for being not less than 14dBi, and now described integrated multi-mode composite antenna has good signal receiving performance.

Preferably, under being operated in first, second, third pattern, the horizontal main lobe angle of antenna is less than or equal to 30 °; When being operated in first and three-mode, antennas orthogonal main lobe angle is less than or equal to 40 °, and now described integrated multi-mode composite antenna has good signal receiving performance.

Preferably, described data processing unit is used for the first electronic mark, described second electronic mark, and described 3rd electronic mark is converted into integrated vehicle Frame.

Preferably, integrated vehicle Frame comprises vehicle requisite information field, vehicles identifications field and extra information field; Described vehicle requisite information field comprises license plate number field and car plate color field; Described vehicles identifications field comprises identity type field, the first electronic mark id field, the second electronic mark id field, the 3rd electronic mark id field; Wherein, described identity type field is for representing that same car carries the kind of mark; Described extra information field at least comprises one of following field: the first electronic mark type of vehicle field, the first electronic mark character of use field, the 3rd electronic mark type of vehicle field, the 3rd electronic mark vehicle user type field.

Preferably, described vehicle requisite information field also comprises information gathering time field, and/or information gathering location field.

Beneficial effect of the present invention is as follows: the invention provides a kind of high performance integrated multi-mode composite antenna, can receive the signal message of the different mode of corresponding three frequencies, have good receptivity, and volume be little, safeguard advantage easily; Further, the present invention can realize receiving three kinds of different frequency range vehicle electric marks in same place, and is converted into the Frame of certain format, thus improves storage and the application efficiency of related data.

Other features and advantages of the present invention will be set forth in the following description, and, becoming apparent from specification of part, or understand by implementing the present invention.Object of the present invention and other advantages realize by structure specifically noted in write specification, claims and accompanying drawing and obtain.

Accompanying drawing explanation

Accompanying drawing only for illustrating the object of specific embodiment, and does not think limitation of the present invention, and in whole accompanying drawing, identical reference symbol represents identical parts.

Fig. 1 is that multi-mode information Perception forms structure chart with integrated identification equipment;

Fig. 2 is roadside unit (Road Side Unit, be called for short RSU) by the antenna schematic diagram mutual with board units (On board Unit, abbreviation OBU).

Embodiment

Specifically describe the preferred embodiments of the present invention below in conjunction with accompanying drawing, wherein, accompanying drawing forms the application's part, and together with embodiments of the present invention for explaining principle of the present invention.

A kind of multimode integral antenna optimized for above DSRC (special short haul communication) communication pattern and frequency range, access multiple signals simultaneously, band separation is pressed again after access, by communication protocol, signal resolution process is targetedly done to each frequency band signals, finally merge each result, realize the indifference access on physical layer, protocol layer, finally on application, be expressed as complete time, place and information of vehicles, then significantly can optimize the application space of improving this transport information mode.

Multi-mode information Perception forms structure as shown in Figure 1 with integrated identification equipment, by integrated multi-mode composite antenna, and 800/900MHz, 2.4GHz, 5.8GHz radio-frequency information transmitting-receiving subassembly and interface circuit and data processing unit composition.

Multi-mode composite antenna, meets antenna to design the multi-mode with superperformance: first determine to need the field angle of antenna, the isoparametric requirement of gain.

According to the access conditions of radio system in existing field of traffic, determine the service condition of demand fulfillment, comprise sluice gate passage rate, safety detection distance, the lane width covered and setting height(from bottom) etc., obtain field angle, the isoparametric requirement of gain of antenna according to the above-mentioned service condition determined.

Secondly, according to the aspect such as the participation in the election such as field angle, gain selecting antennas form, material, working band obtaining antenna.

Finally, relevant parameter is optimized.

The antenna schematic diagram of RSU as Fig. 2, known electric magnetic wave spatial decay formula:

$p_r=p_t{\left(\frac{\mathrm{\λ}}{4\mathrm{\π}d}\right)}^2{G}_t{G}_r---\left(1\right)$

In above formula, P _rfor receiving terminal power (unit: W), P _tfor transmitting power (unit: W), G _tfor transmitter antenna gain (dBi) (multiplication factor), G _rfor receiving antenna gain (multiplication factor), d is that (unit: m), λ is electromagnetic wavelength (unit: m) to radiation length.Wherein P _tg _tbe equivalent transmitting power (EIRP) value.

Are taken the logarithm in formula (1) both sides, and are multiplied by 10 and obtain:

$10{\mathrm{logP}}_r=10{\mathrm{logP}}_t+10log{\left(\frac{\mathrm{\λ}}{4\mathrm{\π}d}\right)}^2+10{\mathrm{logG}}_t+10{\mathrm{logG}}_r$

The received power P that will represent with power level (dBm) form _rwriting P _r', the transmitting power P represented with power level (dBm) form _twriting P _t', the transmitter antenna gain (dBi) G represented with logarithm (dB) form _twriting G _t', the receiving antenna gain G represented with logarithm (dB) form _rwriting G _r', so have:

$P_r^{\′}=P_t^{\′}+20log\frac{\mathrm{\λ}}{4\mathrm{\π}d}+{G_t}^{\′}+{G_r}^{\′}---\left(2\right)$

Then according to formula (2), transmitter antenna gain (dBi) G _{t '}can be obtained by following formula:

${G_t}^{\′}={P_r}^{\′}-{P_t}^{\′}-20\log \frac{\mathrm{\λ}}{4\mathrm{\π}d}-{G_r}^{\′}$

Due to the transmitting power of each one-segment, being all be easy to adopt power amplifier to add that the form of antenna gain carrys out regulable control, is convenience of calculation here, by above-mentioned three frequency radio each frequency range maximum transmission power P _{t '}all by 0dBm estimation, be converted to the ERP G of antenna by all transmitting powers _t' this represents.Then, the power level decay that actual OBU holds putting position onboard to bring, each UHF band reception antenna gain G is considered _r' all by-3dBi estimation, so above formula can simplify writing:

$G_t^{\′}=P_r^{\′}-0-20log\frac{\mathrm{\λ}}{4\mathrm{\π}d}+3=P_r^{\′}-20log\frac{\mathrm{\λ}}{4\mathrm{\π}d}+3---\left(3\right)$

Wherein, electromagnetic wavelength λ can be determined by λ=c/f, and wherein, c is light velocity 299792458m/s, and by 3 × 108m/s estimation, f is wave frequency (unit: Hz), can determine that the typical wavelengths value of each frequency range is:

800/900MHz frequency range:

840MHz：λ ₁≈0.357m

920MHz：λ ₂≈0.326m

2.4GHz frequency range:

2.4GHz：λ ₃≈0.125m

2.483GHz：λ ₄≈0.121m

5.8GHz frequency range:

5.79GHz：λ ₅≈0.0518m

5.84GHz：λ ₆≈0.0513m

When multi-mode information Perception is applied in the not parking management of gateway with integrated identification equipment, because 5.8GHz GB ETC agreement (GB/T 20851-2007) defines, RSU end EIRP value is maximum is no more than 33dBm, here sensitivity P is waken up by 33dBm, OBU _r' minimum-40dBm that specifies by above-mentioned GB agreement, instead can release now the maximum available of ETC down link by formula (3) and wake distance d up, that is:

$33=-40-20\log \frac{\mathrm{\λ}}{4\mathrm{\π}d}+3---\left(4\right)$

So:

$d=\frac{\mathrm{\λ}}{0.00126\mathrm{\π}}---\left(5\right)$

When downstream frequency is chosen as 5.84GHz, λ ≈ 0.0513m, now wakes distance d=12.96m up to the maximum of OBU, and as antenna installation height 4m, projection is in the horizontal plane about 12m.

Consider antenna and the amplifier gain of actual non-optimal situation, OBU antenna gain is pressed 0dB estimation, the EIRP value of RSU is pressed 27dBm and is calculated, the maximum distance of waking up of copying aforesaid way again to calculate now is d=9m, as antenna installation height 4m, projection is in the horizontal plane about 8m, therefore the distance of effectively waking up on horizontal plane under this scene condition should between 8 ~ 12m, and median 10m is got in following calculating.

By sluice gate most high pass speed of a motor vehicle 20km/h, i.e. 5.56m/s, call duration time 1s counts, and when antenna installation height is 4m, vertical main lobe angle should be not less than:

Then antennas orthogonal main lobe angle design load should be not less than 40 ° (this value specifies to be not more than 45 ° in GB/T 20851-2007).

Standard high capacity waggon overall width is 2.5m, and current having a lot of social connections is generally 1.5 times of overall width, i.e. 3.75m, and vehicle by charge sluice gate time, can not be close to roadside travel, can know by inference thus, on ETC track, the position that OBU occurs is within distance track center width is 1.8m scope.Then in scene one, can wake that the antenna horizontal main lobe angle of OBU is minimum be should be up:

Maximumly should to be no more than:

Therefore the horizontal main lobe angle of antenna is by 20 ° of designs (this value specifies to be not more than 38 ° in GB/T 20851-2007).

By the oscillator quantity of above-mentioned field angle array antenna, approximately can obtain the directive gain of 13dBi, and the difference between EIRP value need adopt and highly puts adjustment and supply.

By RSU up channel (reception) sensitivity P in GB ETC agreement _r' estimate by the minimum-70dBm that agreement is given, the signal transmission power P after OBU is activated _t' by 0dBm estimation, OBU transmitter antenna gain (dBi) G _t' by-3dB estimation, use 5.79GHz up channel, wavelength X ≈ 0.0518m, then the up channel receiving antenna gain G needed for RSU _r' be:

$G_r^{\′}=P_r^{\′}-P_t^{\′}-20\log \frac{\mathrm{\λ}}{4\mathrm{\π}d}-G_t^{\′}=-70-0-20\log \frac{\mathrm{\λ}}{4\mathrm{\π}d}-(-3)=-67+67.70\≈1dBm---\left(9\right)$

For ensure redundancy, receiving antenna gain index provides by 6dBi, and main lobe coverage direction angle should be not less than transmitting antenna deflection, or can with transmitting time sharing shared same antenna.

800/900MHz and 2.4GHz frequency range, the occupation mode under the scene of gateway is identical with 5.8GHz frequency range, channel occupation mode is just random requisition, instead of fixed pattern divides, therefore each frequency range needs an antenna.

Can reach-20dBm according to the sensitivity optimum of current GB/T-29768800/900MHz passive label to calculate, then, when read write line EIRP value reaches 33dBm, bringing formula (3) into can obtain:

$33=-20-20\log \frac{\mathrm{\λ}}{4\mathrm{\π}d}+3---\left(10\right)$

So, have:

$\frac{\mathrm{\λ}}{4\mathrm{\π}d}=0.00316$

The maximum reading/writing distance d of label now can be drawn

$d=\frac{\mathrm{\λ}}{0.0126\mathrm{\π}}---\left(11\right)$

When labeling task is in 840MHz (the λ 1 ≈ 0.357m) frequency range that wavelength is longer, maximum communication distance d=9m; When labeling task is in 925MHz (the λ 2 ≈ 0.326m) frequency range that wavelength is shorter, maximum communication distance d=8.2m.Therefore effective reading/writing distance of this frequency range label and ETC similar, therefore used aerial radiation angle can refer to 5.8GHz frequency range to design.But consider that 800/900MHz band wavelength is longer, narrow radiation angle will cause antenna volume excessive, simultaneously in a relatively little volume, the oscillator of the large wavelength of the many groups of arrangement design obtains higher antenna gain, also be relative difficulty, therefore comprehensive Design realizability and engineer applied convenience are considered, the radiation angle of this band antenna by level 30 degree, vertical 40 degree, 10dBi is pressed in gain, the part of radiant power deficiency puts adjustment to supply by height, this way is safer feasible, can meet scene demand.

In 2.4GHz frequency range, owing to using the OBU of WSN-T low speed protocol stack, what adopt be the CC2530 series Zigbee chip of TI company is core, its sensitivity is better than-90dBm, in like manner, when without the need to transmitter antenna gain (dBi), can be drawn the maximum communication distance d of this frequency range by formula (3):

$d=\frac{\mathrm{\λ}}{22.48\mathrm{\π}}\×{10}^5$

When communication frequency is 2.4GHz, overlayable maximum communication distance d=177m;

When communication frequency is 2.483GHz, overlayable maximum communication distance d=171.3m

From above-mentioned conclusion, the communication overlay distance of more than hundred meters can be reached without the need to antenna gain in 2.4GHz frequency range, but for suppressing spuious, ensure higher communication reliability, still need to ensure good signal direction propagation characteristic by the design antenna directional angle similar to aforementioned two frequency ranges, in case too much radio signal or to be spuiously mixed in this free frequency range, form interference erroneous judgement.

In sum, above-mentioned 3 band antenna Combined design can be become the 3 mould directional antennas that consistent.For ensureing that this antenna is easy to design and realizes, 3 mould compound directional antennas all need to design certain gain (6dBi ~ 13dBi) in each frequency range, use and suitably can reduce transmitting power in 2.4GHz frequency range, with the direction propagation characteristic ensured, and prevent useless power from spreading.

In the collecting vehicle information scene of reality, a set of collecting device can be placed above each through lane, and use the information gathering district of above-mentioned antenna cover one 8 ~ 10 meters long; When gathering parallel multilane traffic information, then need to install many cover antennas and equipment works simultaneously, and carry out informix process, the most entire vehicle stream information that can realize a collecting location obtains.In this case need above track, use long transverse lever or portal frame to install.

In addition, when only carrying out information gathering to using " vehicle of vehicle-mounted node (use is operated in the WSN-T agreement of 2.4GHz frequency range) is applied in intelligent transportation ",---this kind of occupation mode mainly follows the trail of occasion, as the out of the station and running path tracking of bus, taxi, passenger traffic, goods stock towards the station room entry/exit management of operation class vehicle and driving path---has the more easy equipment of one to install and use mode.Only a set of equipment can be placed at collection point trackside, the antenna of These parameters is still used to shine to current road surface with certain inclination angle, by aforementioned calculate when communication frequency is 2.483GHz, use the maximum available communication distance of OBU of WSN-T agreement to be not less than 170m to calculate (lower than the frequency radiation coverage of this frequency all higher than this value), then when using 6m antenna installation height, for the antenna that above-mentioned vertical lobe angle is 40 degree, bottom antennas orthogonal radiation angle, communication blind district distance is:

Then available in vertical direction radio-frequency (RF) identification zone length can reach: 170-15=155m.

When using 8m antenna installation height, bottom antennas orthogonal radiation angle, communication blind district distance is:

Then in vertical direction, available radio frequencies identified region length can reach: 170-19=151m.

Estimate that by every lane width 4m 6 lane width 24m count isolation strip redundancy in by 25m.Then can reach 20 ° by antenna horizontal direction angle and carry out Conservative estimation, when being arranged on roadside, the distance d2 that horizontal direction cannot realize signal all standing can approximate estimation be:

The road section length that then can realize radiofrequency signal all standing is minimum is: 170-68.7=101.3m.When equipment be arranged on cross bar gos deep into road top carry out radiation time, due to the reduction of angle of heel, actual coverage can be made to be better than above-mentioned value.Therefore under this kind of simple and easy mounting means, to the vehicle-mounted node using WSN-T agreement, use the antenna of aforementioned parameters can realize one and be not less than the information gathering district that 6 tracks are wide, 100 meters long, and by regulating the at right angle setting inclination angle of antenna, regulate position and the length in available radio frequencies information gathering district.Can meet the acquisition request message of travel speed at such vehicle of below 120km/h.

The integrated multi-mode composite antenna of table 1 has parameter value during more excellent receptivity

When integrated multi-mode composite antenna adopts the analog value in table 1, the receptivity of combined antenna has the comparatively figure of merit.

Signal processing unit completes concurrent multifrequency multichannel Real-Time Scheduling and data processing, comprise the receipts of application layer message/give out a contract for a project and organize wrap/unpack, the discovery of OBU, the reading of state and change, the security work such as identity verify, key management, also need to carry the mutual conversion of different agreement information format, the CS communication of Effect-based operation middleware simultaneously, provide unified information service interface to backstage.In addition, identification equipment of the present invention also comprises high-speed memory and is used for cushioning the multiband multichannel data stream produced in real time, and a large amount of ephemeral datas produced in multi-process reciprocal process.

Integrated vehicle Frame of the present invention comprises vehicle requisite information field, vehicles identifications field and extra information field; Described vehicle mandatory field comprises license plate number field and car plate color field; Described vehicles identifications field comprises identity type field, and ERI identifies id field, and WSN-T identifies id field, and ETC identifies id field; Wherein, described identity type field is for representing that same car carries the kind of mark; Described extra information field at least comprises one of following field: ERI type of vehicle field, ERI character of use field, ETC type of vehicle field, ETC vehicle user type field.Described vehicle mandatory field also comprises information gathering time field, and/or information gathering location field.

In the present invention, ERI identifies vehicle electron identifying (electronic registrationidentification of the motor vehicle is called for short ERI) and is also automobile electronic identity card, Digital Automobile multi-standard source, is commonly called as " electronic license plate ".WSN-T mark is that vehicle-mounted node identification is applied in the intelligent transportation in urban transportation private radio Sensor Network (WSN-T) mark.ETC mark is no-stop charging system (Electronic Toll Collection is called for short ETC) mark.

In sum, embodiments provide one and the invention provides a kind of high performance integrated multi-mode composite antenna, the signal message of the different mode of corresponding three frequencies can be received, there is good receptivity, and volume is little, safeguards advantage easily; Further, the present invention can realize receiving three kinds of different frequency range vehicle electric marks in same place, and is converted into the Frame of certain format, thus improves storage and the application efficiency of related data.

It will be understood by those skilled in the art that all or part of flow process realizing above-described embodiment method, the hardware that can carry out instruction relevant by computer program has come, and described program can be stored in computer-readable recording medium.Wherein, described computer-readable recording medium is disk, CD, read-only store-memory body or random store-memory body etc.

The above; be only the present invention's preferably embodiment, but protection scope of the present invention is not limited thereto, is anyly familiar with those skilled in the art in the technical scope that the present invention discloses; the change that can expect easily or replacement, all should be encompassed within protection scope of the present invention.

Claims (10)

1. a short distance multi-mode integration identification equipment, it is characterized in that, described identification equipment comprises integrated multi-mode composite antenna, multi-frequency band radio-frequency information transmit-receive assembly, interface circuit, and data processing unit;

Wherein integrated multi-mode composite antenna comprises the consistent integrated three-mode directional antenna of angle of radiation, first mode, the second pattern, and three-mode is corresponding first frequency range respectively, second frequency, the 3rd frequency; Described first mode carries the wireless signal of the first electronic mark for receiving; Described second pattern is for receiving the wireless signal carrying the second electronic mark; Described three-mode carries the wireless signal of the 3rd electronic mark for receiving;

Described integrated multi-mode composite antenna is connected with described multi-frequency band radio-frequency information transmit-receive assembly, and described multi-frequency band radio-frequency information transmit-receive assembly comprises first frequency transmitting-receiving subassembly, second frequency transmitting-receiving subassembly, and the 3rd frequency transmitting-receiving subassembly;

Described multi-frequency band radio-frequency information transmit-receive assembly is connected with described data processing unit by interface circuit, the information that described data processing unit receives for the treatment of described integrated multi-mode composite antenna.

2. a kind of short distance multi-mode integration identification equipment according to claim 1, it is characterized in that, described first frequency is the frequency in the uhf band of 840 ~ 845MHz and 920 ~ 925MHz; Described second frequency is the frequency in the 2.4GHz frequency range of 2400 ~ 2483.5MHz; Described 3rd frequency is the frequency in the 5.8GHz frequency range of 5725 ~ 5850MHz.

3. a kind of short distance multi-mode integration identification equipment according to claim 1, it is characterized in that, described first electronic mark is vehicle electron identifying ERI, described second electronic mark is that vehicle-mounted node identification WSN-T is applied in intelligent transportation, and described 3rd electronic mark is drive-in toll mark ETC.

4. a kind of short distance multi-mode integration identification equipment according to claim 1, it is characterized in that, the size of described integrated multi-mode composite antenna is not more than 650*450mm.

5. a kind of short distance multi-mode integration identification equipment according to claim 1, it is characterized in that, described data processing unit is used for described first electronic mark, described second electronic mark, and described 3rd electronic mark is converted into described identical signal format.

6. a kind of short distance multi-mode integration identification equipment according to claim 1, it is characterized in that, described integrated multi-mode composite Antenna Operation is when first mode, the main lobe gain of antenna is not less than 10dBi, when being operated in the second pattern, the main lobe gain of antenna for being not less than 6dBi, when being operated in three-mode, the main lobe gain of antenna is for being not less than 13dBi, and now described integrated multi-mode composite antenna has good signal transmitting and receiving performance.

7. a kind of short distance multi-mode integration identification equipment according to claim 1, it is characterized in that, under being operated in first, second, third pattern, the horizontal main lobe angle of antenna is less than or equal to 30 °; When being operated in first and three-mode, antennas orthogonal main lobe angle is less than or equal to 40 °, and now described integrated multi-mode composite antenna has good signal receiving performance.

8. a kind of short distance multi-mode integration identification equipment according to claim 1, it is characterized in that, described data processing unit is used for the first electronic mark, described second electronic mark, and described 3rd electronic mark is converted into integrated vehicle Frame.

9. a kind of short distance multi-mode integration identification equipment according to claim 8, it is characterized in that, described integrated vehicle Frame comprises vehicle requisite information field, vehicles identifications field and extra information field; Described vehicle requisite information field comprises license plate number field and car plate color field; Described vehicles identifications field comprises identity type field, the first electronic mark id field, the second electronic mark id field, the 3rd electronic mark id field; Wherein, described identity type field is for representing that same car carries the kind of mark; Described extra information field at least comprises one of following field: the first electronic mark type of vehicle field, the first electronic mark character of use field, the 3rd electronic mark type of vehicle field, the 3rd electronic mark vehicle user type field.

10. a kind of short distance multi-mode integration identification equipment according to claim 9, it is characterized in that, described vehicle requisite information field also comprises information gathering time field, and/or information gathering location field.