CN104184489A - Wireless transmission apparatus based on ultrahigh-frequency RFID - Google Patents
Wireless transmission apparatus based on ultrahigh-frequency RFID Download PDFInfo
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- CN104184489A CN104184489A CN201410384407.9A CN201410384407A CN104184489A CN 104184489 A CN104184489 A CN 104184489A CN 201410384407 A CN201410384407 A CN 201410384407A CN 104184489 A CN104184489 A CN 104184489A
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Abstract
The invention discloses a wireless transmission apparatus based on ultrahigh-frequency RFID, which satisfies the requirement of a GJB protocol. The wireless transmission apparatus comprises a 900 MHz master control device and multiple 900 MHz acquisition terminal devices. The 900 MHz master control device comprises a first interface unit, a 900 MHz reader-writer module unit, a first controller unit and a first antenna unit. The 900 MHz acquisition terminal units comprise second interface units, 900 MHz label simulator module units, second controller units and second antenna units. The wireless transmission apparatus provided by the invention has the following advantages: the requirement of the GJB protocol is satisfied, data security and an optimal transmission rate are ensured, and the wireless transmission apparatus realizes a function of wireless communication with a PC or other devices.
Description
Technical field
The invention belongs to electronic communication field, relate in particular to a kind of radio transmitting device based on ultrahigh frequency RFID that meets national military standard protocol requirement.
Background technology
Radio communication is a kind of communication mode that utilizes characteristic that electromagnetic wave signal can be propagated in free space to carry out information exchange, and in information communication field, with fastest developing speed, most widely used was exactly wireless communication technology in recent years.Radio communication mainly comprises microwave communication and satellite communication.Microwave is a kind of radio wave, and the distance that it transmits generally only has tens kms.But the frequency band of microwave is very wide, message capacity is very large.Microwave communication will be built a microwave relay station every tens kms.Along with social development and progress, the application of the communication technology and become the pith of people life, working and learning, the various aspects that radio communication is low with its cost, favorable expandability, the advantage such as easy to use have been deep into people's live and work, comprise mobile phone used in everyday, radio telephone etc., wherein 3G, WLAN, UWB, bluetooth, broadband satellite system, Digital Television are all the application of the most popular wireless communication technology of 21 century.Radio-frequency (RF) identification (Radio Frequency IDentification, RFID) be a kind of wireless communication technology, can identify specific objective and read and write related data by radio signals, and without setting up machinery between recognition system and specific objective or optics contacts.Wireless signal is by the electromagnetic field of furnishing radio frequency, data is sent out from the label being attached to article, with automatic Identification and these article of tracking.The elect magnetic field that some label sends from identifier in the time of identification just can obtain energy, does not need battery; Also there is label itself to have power supply, and can initiatively send radio wave (electromagnetic field of furnishing radio frequency).The information that label has comprised Electronic saving, can identify within several meters.Different from bar code, within radio-frequency (RF) tag does not need to be in identifier sight line, within can embedding tracked object yet.From concept, RFID is similar to bar code scan, and for barcode technology, it is the bar code of having encoded to be attached to object and to use special scanning read write line to utilize light signal that information is sent to scanning read write line by bar shaped magnetic; RFID uses the RFID label of special rfid interrogator and special be attached to object, utilizes frequency signal that information is sent to rfid interrogator by RFID label.The most important advantage of radio-frequency recognition system is contactless identification, and it can penetrate the adverse circumstances label reading that snow, mist, ice, coating, dust and dirt and bar code cannot use, and reading rate is exceedingly fast, in most cases less than 100 milliseconds.The literary sketch ability of active formula radio-frequency recognition system is also important advantage.Can be used for the interactive services such as flow tracking and maintenance tracking.RFID is one and is easy to manipulation, simple and practical and be particularly suitable for the flexibility application technology of automation control.Radio-frequency recognition system mainly contains the following aspects system advantage: read convenient and swift; Recognition speed is fast; Data capacity is large; Long service life, applied range; The change of label data capable of dynamic; Better fail safe.Information interaction between air interface communication protocol specification read write line and electronic tag, object is to be the interconnecting property between different manufacturers production equipment.ISO/IEC formulates the air interface protocol of five kinds of frequency ranges, this thought fully demonstrates the unified relativity of standard, standard is to the joint demand of application system quite widely, but the demand of not all application system, one group of standard can meet wider application demand.The radio-frequency (RF) identification of ISO/IEC 18000-6 information technology-based on the management of single product-be applicable to hyper band 860～960MHz, collision-proof method is added in physical interface, agreement and order between regulation read write line and label.The interface protocol that it comprises TypeA, TypeB and tri-kinds of passive labels of TypeC, communication distance can reach 10m farthest.Wherein TypeC is drafted by EPCglobal, and gets the Green Light in July, 2006, and it improves a lot at recognition speed, read or write speed, data capacity, anticollision, information security, frequency range adaptive capacity, the aspect such as anti-interference.Within 2006, submit V4.0 draft, it,, for expanding with the feature of accessory power supply and sensor electronic tag, comprises label data storage mode and interactive command.The active tag of charged pool can provide reading capability in a big way and stronger communication reliability.For popularity and the uniqueness of national military standard (GJB) agreement 7377.2-2011 application, require the equipment of application 7377.2-2011 agreement to be suitable for the communication standard of the military, but in prior art, there is no the general communication equipment that can be used in national military standard agreement.Existing communication equipment is mainly made up of main control device and acquisition terminal, due to the heavy difficult movement of main control device in practical operation, configure again multiple acquisition terminals, and main control device and acquisition terminal adopt the mode of wired connection, the shortcoming that this kind of connected mode brought is not only heavy but also be unfavorable for management, therefore adopts wireless connections mode by the better selection that is future wireless system equipment.Because of in the application system of national military standard agreement, wireless-transmission network can not be Wi-Fi, the applicable communication network of the bluetooth Deng Fei military again, so also there is no up till now a set of complete Wireless Telecom Equipment that can be used in national military standard agreement.
Summary of the invention
In order to address the above problem, the present invention proposes a kind of radio transmitting device based on ultrahigh frequency RFID.
Technical scheme of the present invention is: a kind of radio transmitting device based on ultrahigh frequency RFID, is characterized in that: comprise a 900MHz master control set and multiple 900MHz acquisition terminal device, described 900MHz master control set comprises first interface unit, 900MHz reader/writer module unit, the first controller unit and the first antenna element, described 900MHz acquisition terminal unit comprises the second interface unit, 900MHz label emulation module unit, second controller unit and the second antenna element, the first controller unit in described 900MHz master control set is connected with other all unit, for controlling the transmission of data message and the data encryption to data message and data storage processing, described 900MHz reader/writer module unit is for wireless data information transmitting-receiving, realize and the radio communication of 900MHz acquisition terminal device and the data interaction of second controller unit, described first interface unit is used for transferring data to PC or display terminal, described the first antenna element adopts 900MHz ceramic antenna, intercom mutually for realizing with the second antenna element of 900MHz acquisition terminal device, second controller unit in described 900MHz acquisition terminal device is connected with other all unit, be used for controlling data information acquisition and transmission, described 900MHz label emulation module unit is for wireless data information transmitting-receiving, realize the 900MHz reader/writer module unit information identification with 900MHz master control set, described the second interface unit is for the data message of collecting device, described the second antenna element adopts 900MHz ceramic antenna, intercoms mutually for realizing with the first antenna element of 900MHz master control set.
Further, the second interface unit in first interface unit and the 900MHz acquisition terminal device in above-mentioned 900MHz master control set all comprises USB interface and serial ports.
Further, the second controller unit in the first controller unit and the 900MHz acquisition terminal device in above-mentioned 900MHz master control set all adopts embedded ARM processor to realize.
Further, the 900MHz read write line unit in above-mentioned 900MHz master control set comprises 900MHz control chip and radio frequency front end chip.
Further, above-mentioned USB interface can adopt self-defining HID_USB interface MiniPCI or PCI-E.
Further, above-mentioned 900MHz reader/writer module unit (4) adopts the main SPI interface of SPI interface and ARM flush bonding processor to communicate.
Further, the radio communication between said apparatus and PC or other equipment adopts DDS-BT anti-collision algorithm.
The invention has the beneficial effects as follows: the present invention adopts ultra-high frequency RFID technology, realize the radio communication of following national military standard agreement 7377.1-2011.Adopt the transmission of arm processor control signal, realize the wireless universal transmission platform that is suitable for the national military standard agreement 7377.1-2011 of the military, avoid relying on Wi-Fi, the applicable communication network of the bluetooth Deng Fei military.Can radio communication easy to use at military's security applications environment, ensure the fail safe of data simultaneously, with optimum transmission rate, adopt anti-collision algorithm DDS-BT to realize effective transmission of the wireless short-distance based on national military standard 7377.1-2011, complete the radio communication between PC and equipment or other equipment, realize the functions such as the collection of data.
Brief description of the drawings
Fig. 1 is the structured flowchart of the radio communication device of the embodiment of the present invention.
Embodiment
Below in conjunction with accompanying drawing, embodiments of the invention are described further.
As shown in Figure 1, be a kind of radio transmitting device based on ultrahigh frequency RFID that meets national military standard protocol requirement of the present invention.It comprises a 900MHz master control set 1 and multiple 900MHz acquisition terminal device 2; Described 900MHz master control set 1 comprises first interface unit 3,900MHz reader/writer module unit 4, the first controller unit 5 and the first antenna element 6; Described 900MHz acquisition terminal unit 2 comprises the second interface unit 7,900MHz label emulation module unit 8, second controller unit 9 and the second antenna element 10.
The first controller unit 5 in described 900MHz master control set 1 is connected with other all unit, for controlling the transmission of data message and the data encryption to data message and data storage processing, described 900MHz reader/writer module unit 4 is received and dispatched for wireless data information, realize and the radio communication of 900MHz acquisition terminal device 2 and the data interaction of second controller unit 9, described first interface unit 3 is for transferring data to PC or display terminal, described the first antenna element 6 adopts 900MHz ceramic antenna, intercom mutually for realizing with the second antenna element 10 of 900MHz acquisition terminal device.Described first interface unit 3 comprises USB interface and serial ports.Described the first controller unit 5 adopts embedded ARM processor to realize.Described 900MHz read write line unit 4 comprises 900MHz control chip and radio frequency front end chip.
Second controller unit 9 in described 900MHz acquisition terminal device 2 is connected with other all unit, be used for controlling data information acquisition and transmission, described 900MHz label emulation module unit 8 is received and dispatched for wireless data information, realize the 900MHz reader/writer module unit 4 information identifications with 900MHz master control set 1, described the second interface unit 7 is for the data message of collecting device, described the second antenna element 10 adopts 900MHz ceramic antenna, intercoms mutually for realizing with the first antenna element 6 of 900MHz master control set.Described the second interface unit 7 comprises USB interface and serial ports.Described second controller unit 9 adopts embedded ARM processor to realize.Described USB interface can adopt self-defining HID_USB interface MiniPCI or PCI-E.Described 900MHz reader/writer module unit (4) adopts the main SPI interface of SPI interface and ARM flush bonding processor to communicate.Radio communication between described device and PC or other equipment adopts DDS-BT anti-collision algorithm.
We describe operation principle of the present invention in conjunction with specific embodiments below.
Before 900MHz master control set 1 and 2 uses of 900MHz acquisition terminal device, 900MHz master control set 1 need to be confirmed the 900MHz acquisition terminal device 2 of current region.Here between 900MHz master control set 1 and 900MHz acquisition terminal device 2, adopt the communication mode of broadcast frame or point-to-point frame, select different Frame modes for different communication patterns.900MHz master control set 1 adopts the mode of scanning to send broadcast, in the time that two or more 900MHz acquisition terminal devices 2 send information to same 900MHz master control set 1 simultaneously, 900MHz master control set 1 goes out None-identified the information of any one 900MHz acquisition terminal device 2.In the time that this collision situation occurs, the identification 900MHz acquisition terminal device 2 that 900MHz master control set 1 cannot be correct will be caused.Here the DDS-BT algorithm that 900MHz master control set 1 of the present invention and 900MHz acquisition terminal device 2 adopt national military standard 7377.1-2011 agreement to specify carrys out anticollision.For ensureing the safety of data, 900MHz master control set 1 of the present invention and 900MHz acquisition terminal device 2 adopt the mode of access code to be encrypted, after password is correct, just carry out follow-up communication, in clog-free environment, coverage can reach 10m, realizes the function of the radio transmission apparatus of following national military standard agreement 7377.1-2011.
Identify after 900MHz acquisition terminal device 2 at 900MHz master control set 1, the data message in USB interface or the serial ports collecting device in the second interface unit 7 is controlled in second controller unit 9 in 900MHz acquisition terminal device 2, then equipment that need to be corresponding to selected acquisition terminal according to user is controlled or data acquisition.After data information acquisition completes, second controller unit 9 control 900MHz label emulation module unit 8 by the second antenna element 10 by data message directive sending to the first antenna element 6 in 900MHz master control set 1.Second antenna element 10 here adopts 900MHz ceramic antenna, and second controller unit 9 adopts embedded ARM processor chip.The order that national military standard agreement is specified that 900MHz acquisition terminal device 2 sends according to 900MHz master control set 1 is processed, and external equipment is attached thereto by USB interface or serial ports, and adopts USB direct current supply.
900MHz master control set 1 receives after data message by the first antenna element 6, controls 900MHz reader/writer module unit 4 receiving data informations, and data message is carried out to data encryption and data storage processing by the first control unit 5.The 900MHz reader/writer module unit 4 here comprises 900MHz control chip and radio frequency front end chip, and it is for the transmitting-receiving of wireless transmission data message, realize with the radio communication of 900MHz acquisition terminal device 2, with the data interaction of the first control unit 5.First antenna element 6 here adopts 900MHz ceramic antenna, and the first controller unit 5 adopts embedded ARM processor chip.After data processing completes, the first control unit 5 is controlled first interface unit 3 and is sent data message to PC or display terminal by USB interface or serial ports.External equipment is connected with 900MHz master control set 1 by USB interface or serial ports, and adopts USB direct current supply.
In like manner, also can send order to 900MHz acquisition terminal device 2 by 900MHz master control set 1, carry out wireless transmission, thereby realize the RFID radio communication of following national military standard agreement 7377.1-2011.
Those of ordinary skill in the art will appreciate that, embodiment described here is in order to help reader understanding's principle of the present invention, should be understood to that protection scope of the present invention is not limited to such special statement and embodiment.Those of ordinary skill in the art can make various other various concrete distortion and combinations that do not depart from essence of the present invention according to these technology enlightenments disclosed by the invention, and these distortion and combination are still in protection scope of the present invention.
Claims (7)
1. the radio transmitting device based on ultrahigh frequency RFID, is characterized in that: comprise a 900MHz master control set (1) and multiple 900MHz acquisition terminal devices (2), described 900MHz master control set (1) comprises first interface unit (3), 900MHz reader/writer module unit (4), the first controller unit (5) and the first antenna element (6), described 900MHz acquisition terminal unit (2) comprises the second interface unit (7), 900MHz label emulation module unit (8), second controller unit (9) and the second antenna element (10), the first controller unit (5) in described 900MHz master control set (1) is connected with other all unit, for controlling the transmission of data message and the data encryption to data message and data storage processing, described 900MHz reader/writer module unit (4) is received and dispatched for wireless data information, realize and the radio communication of 900MHz acquisition terminal device (2) and the data interaction of second controller unit (9), described first interface unit (3) is for transferring data to PC or display terminal, described the first antenna element (6) adopts 900MHz ceramic antenna, intercom mutually for realizing with second antenna element (10) of 900MHz acquisition terminal device, second controller unit (9) in described 900MHz acquisition terminal device (2) is connected with other all unit, be used for controlling data information acquisition and transmission, described 900MHz label emulation module unit (8) is received and dispatched for wireless data information, realize 900MHz reader/writer module unit (4) the information identification with 900MHz master control set (1), described the second interface unit (7) is for the data message of collecting device, described the second antenna element (10) adopts 900MHz ceramic antenna, intercom mutually for realizing with first antenna element (6) of 900MHz master control set.
2. a kind of radio transmitting device based on ultrahigh frequency RFID as claimed in claim 1, is characterized in that: the second interface unit (7) in first interface unit (3) and 900MHz acquisition terminal device (2) in described 900MHz master control set (1) all comprises USB interface and serial ports.
3. a kind of radio transmitting device based on ultrahigh frequency RFID as claimed in claim 1, is characterized in that: the second controller unit (9) in the first controller unit (5) and 900MHz acquisition terminal device (2) in described 900MHz master control set (1) all adopts embedded ARM processor to realize.
4. a kind of radio transmitting device based on ultrahigh frequency RFID as claimed in claim 1, is characterized in that: the 900MHz read write line unit (4) in described 900MHz master control set (1) comprises 900MHz control chip and radio frequency front end chip.
5. a kind of radio transmitting device based on ultrahigh frequency RFID as claimed in claim 2, is characterized in that: described USB interface can adopt self-defining HID_USB interface MiniPCI or PCI-E.
6. a kind of radio transmitting device based on ultrahigh frequency RFID as claimed in claim 1, is characterized in that: described 900MHz reader/writer module unit (4) adopts the main SPI interface of SPI interface and ARM flush bonding processor to communicate.
7. a kind of radio transmitting device based on ultrahigh frequency RFID as claimed in claim 1, is characterized in that: the radio communication between described device and PC or other equipment adopts DDS-BT anti-collision algorithm.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201410384407.9A CN104184489B (en) | 2014-08-06 | 2014-08-06 | Radio transmitting device based on ultrahigh frequency RFID |
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| CN201410384407.9A CN104184489B (en) | 2014-08-06 | 2014-08-06 | Radio transmitting device based on ultrahigh frequency RFID |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104899620A (en) * | 2015-05-12 | 2015-09-09 | 广州中大微电子有限公司 | RFID reading and writing device with safe processing function |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN101145192A (en) * | 2006-09-14 | 2008-03-19 | 国际商业机器公司 | Smart radio-frequency identification infrastructure and method |
| CN102883465A (en) * | 2011-07-14 | 2013-01-16 | 深圳光启高等理工研究院 | Wireless communication system |
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Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101145192A (en) * | 2006-09-14 | 2008-03-19 | 国际商业机器公司 | Smart radio-frequency identification infrastructure and method |
| CN102883465A (en) * | 2011-07-14 | 2013-01-16 | 深圳光启高等理工研究院 | Wireless communication system |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104899620A (en) * | 2015-05-12 | 2015-09-09 | 广州中大微电子有限公司 | RFID reading and writing device with safe processing function |
| CN104899620B (en) * | 2015-05-12 | 2019-12-24 | 广州中大微电子有限公司 | RFID reader-writer with safety processing function |
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| CN104184489B (en) | 2017-09-19 |
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