CN202548875U - Multi-frequency channel radio frequency identification device (RFID) reader based on 2.4 gigabyte wireless communication function - Google Patents
Multi-frequency channel radio frequency identification device (RFID) reader based on 2.4 gigabyte wireless communication function Download PDFInfo
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- CN202548875U CN202548875U CN2012201109879U CN201220110987U CN202548875U CN 202548875 U CN202548875 U CN 202548875U CN 2012201109879 U CN2012201109879 U CN 2012201109879U CN 201220110987 U CN201220110987 U CN 201220110987U CN 202548875 U CN202548875 U CN 202548875U
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Abstract
The utility model discloses a multi-frequency channel radio frequency identification device (RFID) reader based on a 2.4 gigabyte wireless communication function. The multi-frequency channel RFID reader comprises a microprocessor unit (MPU) and a RFID read-write module, a wireless charging unit, a 2.4 G wireless communication module, a general packet radio service (GPRS) communication module and a watch dog timer (WDT) chip. The RFID read-write module, the wireless charging unit, the 2.4 G wireless communication module, the GPRS communication module and the WDT chip are respectively connected with the MPU, wherein the wireless charging unit comprises a receiving module and a power supplying module, the receiving module is used for receiving electric power transmitted by a wireless launching unit, and the power supplying module is used for supplying the electric power to the MPU. The multi-frequency channel RFID reader has waterproof and dustproof functions and is charged through a wireless mode, so that damage to a universal serial bus (USB) caused by the frequent inserting and pulling when the reader is charged is avoided, and the service life of the RFID reader is prolonged. At the same time, the data transmission between the RFID reader and an upper computer is achieved by means of the 2.4 G wireless communication module and the GPRS communication module, and the operation condition of the MPU is detected through the WDT chip, and thus the safety performance of the RFID reader is improved.
Description
Technical field
The utility model relates to rfid interrogator, more particularly, relates to a kind of multiple-frequency band RFID read write line based on the 2.4G radio communication function.
Background technology
Radio RF recognition technology (Radio Frequency Idenfication; RFID) be a kind of non-contacting automatic identification technology; Its ultimate principle is to utilize the transport property of radiofrequency signal and space coupling (inductance or EM coupling) or radar reflection, realizes being identified the automatic identification of object.Rfid system comprises electronic tag and reader two parts at least.RFID reader (read write line) carries out radio communication through antenna and RFID electronic tag; Can realize that to the reading or write operation of tag recognition sign indicating number and internal storage data typical reader includes high-frequency model (transmitter and receiver), control module and reader antenna.
Traditional rfid interrogator adopts the mode of wired access to realize and the communicating by letter of data center (host computer); Even wireless data transmission has been realized at part rfid interrogator terminal; But also mostly is to adopt short-range communication; Finally still to pass through communicating by letter of on-the-spot wireline equipment realization and data center, can't satisfy application demand remote, trans-regional, portable rfid interrogator.
Common rfid interrogator is when the read-write electronic tag; Relate to outdoor study, the water proof and dust proof performance of read write line can be not fine, especially has under the situation of power interface; In case fall into the water; Water resistance will be had a greatly reduced quality, and when having the application of connector, the number of times of plug also is that certain age limit is arranged.
Summary of the invention
In order to realize the wireless transmission between multiple-frequency band RFID read write line and the host computer, realize its functions of waterproof and dustproof, improve the serviceable life of rfid interrogator, the utility model provides a kind of multiple-frequency band RFID read write line based on the 2.4G radio communication function.
Said technical scheme is following: a kind of multiple-frequency band RFID read write line based on the 2.4G radio communication function; Comprise MPU microprocessor and RFID module for reading and writing; Said rfid interrogator also comprises wireless communication module; Said wireless communication module is the 2.4G wireless communication module, and it is connected with host computer with said MPU microprocessor, is used to realize the wireless transmission to said RFID module for reading and writing information.
Further, said wireless communication module also comprises the GPRS communication module, and it is connected with said MPU microprocessor, is used to realize the GPRS transmission to said RFID module for reading and writing.
Further; Said rfid interrogator also comprises wireless charging device, is connected with said MPU microprocessor, and it comprises receiver module and supply module; Said receiver module is used to receive the electric power that wireless launcher transmits, and said supply module is used to supply with said MPU microprocessor electric power.
Further, said rfid interrogator also comprises the WDT chip, is used to monitor the running status of said MPU microprocessor.
Further, described rfid interrogator also comprises a FLASH storer, and said FLASH storer is connected with said MPU microprocessor, is used to realize the mobile storage of data.
The beneficial effect of the technical scheme that the utility model embodiment provides is:
(1) in the utility model, be provided with the 2.4G wireless communication module, it is connected with host computer with the MPU microprocessor, is used to realize the long-distance transmissions to said RFID module for reading and writing information, makes rfid interrogator and host computer realize data interaction.
(2) in the utility model, also be provided with wireless charging device, make rfid interrogator realize that with outside wireless launcher wireless charging is connected, and then when avoiding charging frequently interface is plugged and cause the damage of interface.
(3) the WDT chip also is set in addition on rfid interrogator; It is commonly called as " house dog "; It can be well detects the running status of MPU microprocessor, when the endless loop state appears in the MPU microprocessor, impels the MPU microprocessor to automatically reset through house dog; Carry out working procedure, improved the security of operation of rfid interrogator.
Description of drawings
In order to be illustrated more clearly in the technical scheme among the utility model embodiment; The accompanying drawing of required use is done to introduce simply in will describing embodiment below; Obviously, the accompanying drawing in describing below only is some embodiment of the utility model, for those of ordinary skills; Under the prerequisite of not paying creative work, can also obtain other accompanying drawing according to these accompanying drawings.
Fig. 1 is the utility model principle framework figure.
Embodiment
For the purpose, technical scheme and the advantage that make the utility model is clearer, will combine accompanying drawing that the utility model embodiment is done to describe in detail further below.
As shown in Figure 1; A kind of multiple-frequency band RFID read write line that the utility model provided based on the 2.4G radio communication function; Comprise MPU microprocessor, RFID module for reading and writing, wireless charging device and button, button wherein, wireless charging device, RFID module for reading and writing are connected with the MPU microprocessor respectively.Wireless charging device wherein comprises receiver module and supply module; Receiver module is used to receive the electric power that wireless launcher transmits, and supply module is used for electric power to the MPU microprocessor being provided, during use; Only need near the wireless launcher that is connected with power supply rfid interrogator; Can realize the transmission of electric power, receiver module receives the electric power that wireless launcher is launched, and supply module drives its work for the MPU microprocessor the resulting electric power transfer of receiver module.
In rfid interrogator, be provided with the 2.4G wireless communication module, the GPRS communication module that are connected with the MPU microprocessor, the two all realizes the long-distance transmissions of data through wireless mode and host computer, ensures for the wireless transmission of data provides two.
In addition, in order to improve the safe handling of MPU microprocessor, in rfid interrogator, also be provided with WDT chip (Watchdog Timer); Be commonly called as " house dog "; Be used to monitor MPU microprocessor running status, can be well the running status of MPU microprocessor be detected, when endless loop appears in the MPU microprocessor; Impel the MPU microprocessor to automatically reset through house dog, realize the normal operation of its program.
Simultaneously, in order to realize the rapid extraction of rfid interrogator data, on rfid interrogator, also be provided with the FLASH storer; FLASH storer wherein is connected with said MPU microprocessor; Be used to realize the mobile storage of data, easy to use, the data in can the rapid extraction rfid interrogator.
Need to prove: the multiple-frequency band RFID read write line based on the 2.4G radio communication function that the foregoing description provides only is illustrated with the division of above-mentioned each functional module; In the practical application; Can as required the above-mentioned functions distribution be accomplished by different functional; Be about to its inner structure and be divided into different functional,, repeat no more here to accomplish all or part of function of above description.
Above-mentioned the utility model embodiment sequence number is not represented the quality of embodiment just to description.
All or part of step among the utility model embodiment can utilize software to realize that corresponding software programs can be stored in the storage medium that can read, like CD or hard disk etc.
The above is merely the preferred embodiment of the utility model, and is in order to restriction the utility model, not all within the spirit and principle of the utility model, any modification of being done, is equal to replacement, improvement etc., all should be included within the protection domain of the utility model.
Claims (5)
1. multiple-frequency band RFID read write line based on the 2.4G radio communication function; Comprise MPU microprocessor and RFID module for reading and writing; It is characterized in that said rfid interrogator also comprises wireless communication module, said wireless communication module is the 2.4G wireless communication module; It is connected with host computer with said MPU microprocessor, is used to realize the wireless transmission to said RFID module for reading and writing information.
2. multiple-frequency band RFID read write line according to claim 1 is characterized in that,
Said wireless communication module also comprises the GPRS communication module, and it is connected with said MPU microprocessor, is used to realize the GPRS transmission to said RFID module for reading and writing.
3. multiple-frequency band RFID read write line according to claim 1 and 2 is characterized in that,
Said rfid interrogator also comprises wireless charging device; Be connected with said MPU microprocessor; It comprises receiver module and supply module, and said receiver module is used to receive the electric power that wireless launcher transmits, and said supply module is used to supply with said MPU microprocessor electric power.
4. multiple-frequency band RFID read write line according to claim 3 is characterized in that,
Said rfid interrogator also comprises the WDT chip, is used to monitor the running status of said MPU microprocessor.
5. multiple-frequency band RFID read write line according to claim 4 is characterized in that,
Described rfid interrogator also comprises a FLASH storer, and said FLASH storer is connected with said MPU microprocessor, is used to realize the mobile storage of data.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012201109879U CN202548875U (en) | 2012-03-22 | 2012-03-22 | Multi-frequency channel radio frequency identification device (RFID) reader based on 2.4 gigabyte wireless communication function |
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| Application Number | Priority Date | Filing Date | Title |
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| CN2012201109879U CN202548875U (en) | 2012-03-22 | 2012-03-22 | Multi-frequency channel radio frequency identification device (RFID) reader based on 2.4 gigabyte wireless communication function |
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| CN202548875U true CN202548875U (en) | 2012-11-21 |
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| CN2012201109879U Expired - Fee Related CN202548875U (en) | 2012-03-22 | 2012-03-22 | Multi-frequency channel radio frequency identification device (RFID) reader based on 2.4 gigabyte wireless communication function |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104866882A (en) * | 2015-06-12 | 2015-08-26 | 安徽朗坤物联网有限公司 | Ultrahigh-frequency RFID reader-writer device and hopping channel method |
-
2012
- 2012-03-22 CN CN2012201109879U patent/CN202548875U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104866882A (en) * | 2015-06-12 | 2015-08-26 | 安徽朗坤物联网有限公司 | Ultrahigh-frequency RFID reader-writer device and hopping channel method |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20121121 Termination date: 20150322 |
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| EXPY | Termination of patent right or utility model |