CN203838729U - Radio frequency read-write device with good stability - Google Patents
Radio frequency read-write device with good stability Download PDFInfo
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- CN203838729U CN203838729U CN201420083816.0U CN201420083816U CN203838729U CN 203838729 U CN203838729 U CN 203838729U CN 201420083816 U CN201420083816 U CN 201420083816U CN 203838729 U CN203838729 U CN 203838729U
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Abstract
The utility model discloses a radio frequency read-write device with good stability. The radio frequency read-write device is electrically connected with active tags arranged on each email through a wireless way. The radio frequency read-write device comprises a shell body, a reader-writer arranged in the shell body, an LPC 2132 microcontroller, a power supply switching circuit connected with a direct current power supply and used for power supplying, a radio frequency transceiver, an antenna extending out from the shell body and used for wireless connection with active tags and an RS232 serial interface arranged on the shell body and used for connection with a computer. The antenna is electrically connected with the radio frequency transceiver. The LPC 2132 microcontroller is electrically connected with the reader-writer and the radio frequency transceiver respectively. The LPC 2132 microcontroller is electrically connected with the RS232 serial interface through a level switch chip. The radio frequency read-write device has good stability and can read and write logistics information in batch.
Description
Technical field
The utility model relates to logistics information processing technology field, especially relates to a kind of radio-frequency reading-writing device that can read and write in batches the good stability of logistics information being applicable in logistics system.
Background technology
Express delivery industry has become one of fastest-rising industry in world economy at present.Along with the fast development of Chinese national economy, various circles of society also significantly increase the demand of Courier Service.2010, China completed 2.6 hundred million of express delivery amounts, increases by 36.6% on a year-on-year basis; 58.7 hundred million yuan of finishing service incomes, increase by 24% on a year-on-year basis.
Conventional material fluid recognition technology comprises bar code identification technology and video identification technology in the world, bar code identification technology is by modem technologies such as automatic identification technology, POS system, EDI, can understand at any time the position of related products in supply chain, and immediately make a response.But the weak point of barcode technology is that bar code is subject to the impact of the environment such as weather, thereby unavoidably have the erroneous judgement to Item Information, reliability and degree of accuracy are poor, and partial data is by artificial input, can cause the bottleneck in logistics operation process.
Video identification technology is to utilize the picture pick-up device identification arranging on road side or circuit to be arranged on the Item Number information on the mobile objects such as vehicle, and Item Number information recording is got off.Numbering is vulnerable to the impact of rugged surroundings, and reliability and the accuracy of identification are poor, and partial data needs people to process, and has greatly reduced the real-time of system.
The subject matter in China's express delivery market:
There is no a set of efficient logistic information management system, manual type is mainly leaned in the typing of logistics information, long processing period, and speed is slow; The level of informatization of logistics is low, and the efficiency of management is low, seriously restricts the fast development of ecommerce.
Chinese patent mandate publication number: CN203084741U, authorize open day on February 22nd, 2013, a kind of radio-frequency reading-writing device is disclosed, this device comprises body and is arranged at intrinsic reader and antenna, described reader and antenna are integrated in same unit, are also provided with read head on described body.On described reader, be also provided with the interface unit, control module, high-frequency model, the coupling module that by wireless signal, are connected with computing machine.The weak point of this utility model is that function singleness, can not, for logistics disposal system, can not read and write logistics information in batches.
Utility model content
Goal of the invention of the present utility model is slow in order to overcome logistics information processing speed of the prior art, the fast-developing deficiency of serious restriction ecommerce, provides a kind of radio-frequency reading-writing device that can read and write in batches the good stability of logistics information being applicable in logistics system.
To achieve these goals, the utility model is by the following technical solutions:
A radio-frequency reading-writing device for good stability, described radio-frequency reading-writing device is electrically connected to by wireless mode with the active label of being located on each mail; Comprise housing, power-switching circuit and the radio-frequency (RF) transceiver for the powering that be located at read write line in housing, LPC2132 microcontroller, are connected with direct supply, stretch out outside housing for the antenna with active label wireless connections and the RS232 serial line interface for being connected with computing machine of being located on housing; Described antenna is electrically connected to radio-frequency (RF) transceiver, and described LPC2132 microcontroller is electrically connected to read write line and radio-frequency (RF) transceiver respectively, and LPC2132 microcontroller is electrically connected to RS232 serial line interface by level transferring chip; Described power-switching circuit comprises one-level power-switching circuit and secondary power supply change-over circuit, and the input end of described one-level power-switching circuit is electrically connected to direct supply, and the output terminal of one-level power-switching circuit is electrically connected to the input end of secondary power supply change-over circuit.
Because the quality of microcontroller performance directly has influence on function and the stability of whole terminal, therefore the utility model adopts ARM embedded microcontroller LPC2132 as microcontroller, LPC2132 is the microcontroller of 32 ARM7TDMI-STMCPU based on real-time simulation and Embedded Trace, arithmetic speed is high, processing power is strong, can meet the requirement of real-time that on-the-spot mass data is processed.And with abundant Resources on Chip, there is powerful embedded Control function, be applicable to Industry Control, Intelligent Recognition and medical system.
The utility model, by the electronic tag that stores number information is attached on mail, utilizes wireless radio frequency mode to carry out read write tag information in batches, thereby realizes the fast processing of logistics information; Effectively avoid the slow-footed problem of artificial treatment document, improved production efficiency, saved the time, man power and material.
The wireless chip of active label is alternately in dormant state and state of activation, and when active label enters after the identified region of read write line, the antenna reception of active label is to the radiofrequency signal of read write line transmitting, and active label is activated.
Under the state of activation of active label, can be to writing information, reading information in batches in batches in the active label of difference numbering, also can be to specifying the label writing information of numbering and reading the information of the label of specifying numbering.
Power-switching circuit of the present utility model comprises two-stage change-over circuit, provides galvanic current to press can to read write line, LPC2132 microcontroller and radio-frequency (RF) transceiver, for steady operation of the present utility model provides reliable basis.
The utility model is compared with video identification technology with bar codes technique, has following advantage:
Shorten the activity duration: for home-delivery center, a utility model is installed going out a warehouse-in mouthful place, read write line can be realized without stopping scanning, and can be at a distance the dynamic disposable information that reads a plurality of electronic tags, greatly save the activity duration that warehouse-in, improved work efficiency;
Increase home-delivery center's handling capacity: home-delivery center improves greatly to the processing power of mail, has increased mail handling capacity, has shortened the logistics cycle;
Reduce running expense: go out warehouse-in and check and accept operation and can complete simultaneously, reduced cost of equipment, reduced the carrying number of times of mail in home-delivery center, saved labour cost;
Realize logistic track: can realize automatic management and logistic track, increase the transparence degree of real-time follow-up and management;
Information transmits more quick, accurate: reduced the generation of errors and omissions.
As preferably, the model of described level transferring chip is SP3232E, the the 7th, the 8th pin of described level transferring chip is all electrically connected to RS232 serial line interface, 6th, the equal ground connection of the 11st, the 13rd pin, between the 15th and the 6th pin, be connected with capacitor C 6, between the 1st and the 3rd pin, be connected with capacitor C 8, between the 4th and the 5th pin, be connected with capacitor C 5, the the 9th and the 10th pin is all electrically connected to microcontroller, between the 2nd and the 16th pin, being connected with capacitor C 9, the 2 pins is electrically connected to power-switching circuit.Level transferring chip has realized the conversion of the signal level between RS232 serial line interface and microcontroller.
SP3232E is a kind of chip for level conversion that SIPEX company manufactures, the operating voltage of the RS232 serial line interface of computing machine is positive and negative 12V, and the operating voltage of microcontroller is 3.3V, therefore, during communication, need to carry out level conversion through SP3232E, SP3232E adopts positive 5V Power supply.
As preferably, also comprise battery memory circuit, described battery memory circuit comprises resistance R 2, diode D1,2 joint series dry cell BT1 and capacitor C 10, the input end of described secondary power supply change-over circuit is electrically connected to resistance R 2 one end, resistance R 2 other ends are electrically connected to the positive pole of diode D1, the negative pole of diode D1 is electrically connected to the positive pole of BT1, one end of capacitor C 10 and LPC2132 microcontroller respectively, and the other end of capacitor C 10 is connected with the negative electricity of BT1.
Battery memory circuit is for providing DC standby power to LPC2132 microcontroller, and when the output voltage of the output terminal of secondary power supply change-over circuit is 0, the series dry cell BT1 of battery memory circuit provides operating voltage to LPC2132 microcontroller.
As preferably, also comprise and be positioned at the crystal oscillating circuit of housing and be positioned at the replacement button on housing, crystal oscillating circuit and replacement button are all electrically connected to microcontroller.
As preferably, described one-level power-switching circuit comprises LM2940CT-5.0 low-dropout regulator, capacitor C 3 and capacitor C 4; The input end of LM2940CT-5.0 low-dropout regulator is electrically connected to direct supply, and capacitor C 3 and capacitor C 4 are parallel between the output and ground of low-dropout regulator.
It is 5V voltage by the 9V voltage transitions of direct supply that one-level power-switching circuit is used for.The output voltage of one-level power-switching circuit is used to SP3232E chip power supply.
As preferably, described secondary power supply change-over circuit comprises ASM1117-3.3 low-dropout regulator, resistance R 3, light emitting diode D2, capacitor C 11, capacitor C 12, capacitor C 13 and capacitor C 14; Capacitor C 11 and capacitor C 12 are parallel between the output terminal and earth terminal of low-dropout regulator, and capacitor C 13 and capacitor C 14 are parallel between the input end and earth terminal of low-dropout regulator; The input end of ASM1117-3.3 low-dropout regulator is electrically connected to the positive pole of resistance R 3, light emitting diode D2 successively, light emitting diode D2 minus earth.
Secondary power supply change-over circuit is for being 3.3V voltage by the 5V voltage transitions of one-level power-switching circuit output terminal, and the output voltage of secondary power supply change-over circuit is used to microcontroller power supply.
As preferably, the frequency of operation of radio-frequency (RF) transceiver is 135kHz, 13.56MHz, 27.125MHz or 2.45GHz.
As preferably, the length of antenna is 28 to 32 millimeters.
Therefore, the utlity model has following beneficial effect: (1) good stability; (2) be applicable in logistics system; (3) can read and write in batches logistics information.
Accompanying drawing explanation
Fig. 1 is a kind of theory diagram of the present utility model;
Fig. 2 is a kind of circuit diagram of the present utility model;
Fig. 3 is a kind of circuit diagram of level transferring chip of the present utility model and RS232 serial line interface;
Fig. 4 is a kind of circuit diagram of one-level power-switching circuit of the present utility model;
Fig. 5 is a kind of circuit diagram of secondary power supply change-over circuit of the present utility model.
In figure: active label 1, housing 2, read write line 3, LPC2132 microcontroller 4, power-switching circuit 5, radio-frequency (RF) transceiver 6, antenna 7, computing machine 8, RS232 serial line interface 9, level transferring chip 10, direct supply 11, battery memory circuit 12, crystal oscillating circuit 13, replacement button 14.
Embodiment
Below in conjunction with the drawings and specific embodiments, the utility model is further described.
Embodiment is as shown in Figure 1 a kind of radio-frequency reading-writing device of good stability, and radio-frequency reading-writing device is electrically connected to by wireless mode with the active label 1 of being located on each mail; Comprise housing 2, power-switching circuit 5 and the radio-frequency (RF) transceiver 6 for the powering that be located at read write line 3 in housing, LPC2132 microcontroller 4, are connected with direct supply 11, stretch out outside housing for the antenna 7 with active label wireless connections and the RS232 serial line interface 9 for being connected with computing machine 8 of being located on housing; Antenna is electrically connected to radio-frequency (RF) transceiver, and LPC2132 microcontroller is electrically connected to read write line and radio-frequency (RF) transceiver respectively, and LPC2132 microcontroller is electrically connected to RS232 serial line interface by level transferring chip 10; Power-switching circuit comprises one-level power-switching circuit and secondary power supply change-over circuit, and the input end of one-level power-switching circuit is electrically connected to direct supply, and the output terminal of one-level power-switching circuit is electrically connected to the input end of secondary power supply change-over circuit.
As shown in Figure 3, the model of level transferring chip is SP3232E, the the 7th, the 8th pin of level transferring chip is all electrically connected to RS232 serial line interface, 6th, the equal ground connection of the 11st, the 13rd pin, is connected with between the 15th and the 6th pin between capacitor C 6, the 1 and the 3rd pin and is connected with capacitor C 8, between the 4th and the 5th pin, be connected with capacitor C 5, the the 9th and the 10th pin is all electrically connected to microcontroller, is connected with capacitor C 9, the 2 pins and is electrically connected to power-switching circuit between the 2nd and the 16th pin.
As shown in Figure 1 and Figure 2, also comprise battery memory circuit 12, battery memory circuit comprises resistance R 2, diode D1,2 joint series dry cell BT1 and capacitor C 10, the input end of secondary power supply change-over circuit is electrically connected to resistance R 2 one end, resistance R 2 other ends are electrically connected to the positive pole of diode D1, the negative pole of diode D1 is electrically connected to the positive pole of BT1, one end of capacitor C 10 and LPC2132 microcontroller respectively, and the other end of capacitor C 10 is connected with the negative electricity of BT1.
As shown in Figure 1 and Figure 2, also comprise and be positioned at the crystal oscillating circuit 13 of housing and be positioned at the replacement button 14 on housing, crystal oscillating circuit and replacement button are all electrically connected to microcontroller.
As shown in Figure 4, one-level power-switching circuit comprises LM2940CT-5.0 low-dropout regulator, capacitor C 3 and capacitor C 4; The input end of LM2940CT-5.0 low-dropout regulator is electrically connected to direct supply, and capacitor C 3 and capacitor C 4 are parallel between the output and ground of low-dropout regulator.
As shown in Figure 5, described secondary power supply change-over circuit comprises ASM1117-3.3 low-dropout regulator, resistance R 3, light emitting diode D2, capacitor C 11, capacitor C 12, capacitor C 13 and capacitor C 14; Capacitor C 11 and capacitor C 12 are parallel between the output terminal and earth terminal of low-dropout regulator, and capacitor C 13 and capacitor C 14 are parallel between the input end and earth terminal of low-dropout regulator; The input end of ASM1117-3.3 low-dropout regulator is electrically connected to the positive pole of resistance R 3, light emitting diode D2 successively, light emitting diode D2 minus earth.
The frequency of operation of radio-frequency (RF) transceiver is 135kHz, 13.56MHz, 27.125MHz or 2.45GHz.The length of antenna is 30 millimeters.The model of read write line is WJM3000.
Read write line of the present utility model is read the information of active label, the information that reads the active label of specifying numbering, the label writing information of numbering to appointment and as follows to the process of active label batch writing information in batches:
Read write line reads the process of the information of active label in batches:
When active label enters after the identified region of read write line, the antenna reception of active label is to the radiofrequency signal of read write line transmitting, and active label is activated;
The tag number that the needs that are stored in computing machine are read is input in LPC2132 microcontroller, the information that each active label of antenna reception sends, radio-frequency (RF) transceiver is by information decoding, and decoded label information is transferred in computing machine and is stored by LPC2132 microcontroller.
The process that read write line reads the information of specifying the active label of numbering is as follows:
Certain tag number being stored in computing machine is input in LPC2132 microcontroller, the information that antenna reception sends to each active label in effective range, radio-frequency (RF) transceiver is by information decoding, and LPC2132 microcontroller selects the communication of described label to store in computing machine.
Read write line is as follows to the process of each active label batch write information:
LPC2132 microcontroller is downloaded coding and the corresponding writing information thereof of 20 active labels from computing machine, radio-frequency (RF) transceiver is sent and is write order by each active label of sky alignment, when radio-frequency (RF) transceiver, receive the confirmation of 20 active labels, start to send respectively corresponding writing information to 20 active labels.
Read write line is as follows to the process of certain active label write information:
LPC2132 microcontroller is downloaded coding and the corresponding writing information thereof of certain active label from computing machine, radio-frequency (RF) transceiver is sent and is write order by this active label of sky alignment, when radio-frequency (RF) transceiver, receive the confirmation of this active label, start to send respectively corresponding writing information to this active label.
Should be understood that the present embodiment is only not used in restriction scope of the present utility model for the utility model is described.In addition should be understood that those skilled in the art can make various changes or modifications the utility model after having read the content of the utility model instruction, these equivalent form of values fall within the application's appended claims limited range equally.
Claims (8)
1. a radio-frequency reading-writing device for good stability, described radio-frequency reading-writing device is electrically connected to by wireless mode with the active label (1) of being located on each mail; It is characterized in that, comprise housing (2), power-switching circuit (5) and the radio-frequency (RF) transceiver (6) for the powering that be located at read write line (3) in housing, LPC2132 microcontroller (4), are connected with direct supply (11), stretch out outside housing for the antenna with active label wireless connections (7) and the RS232 serial line interface (9) for being connected with computing machine (8) of being located on housing; Described antenna is electrically connected to radio-frequency (RF) transceiver, and described LPC2132 microcontroller is electrically connected to read write line and radio-frequency (RF) transceiver respectively, and LPC2132 microcontroller is electrically connected to RS232 serial line interface by level transferring chip (10); Described power-switching circuit comprises one-level power-switching circuit and secondary power supply change-over circuit, and the input end of described one-level power-switching circuit is electrically connected to direct supply, and the output terminal of one-level power-switching circuit is electrically connected to the input end of secondary power supply change-over circuit.
2. the radio-frequency reading-writing device of good stability according to claim 1, it is characterized in that, the model of described level transferring chip is SP3232E, the 7th of described level transferring chip, the 8th pin is all electrically connected to RS232 serial line interface, the 6th, the 11st, the equal ground connection of the 13rd pin, between the 15th and the 6th pin, be connected with capacitor C 6, between the 1st and the 3rd pin, be connected with capacitor C 8, between the 4th and the 5th pin, be connected with capacitor C 5, the the 9th and the 10th pin is all electrically connected to microcontroller, between the 2nd and the 16th pin, be connected with capacitor C 9, the 2nd pin is electrically connected to power-switching circuit.
3. the radio-frequency reading-writing device of good stability according to claim 1, it is characterized in that, also comprise battery memory circuit (12), described battery memory circuit comprises resistance R 2, diode D1,2 joint series dry cell BT1 and capacitor C 10, the input end of described secondary power supply change-over circuit is electrically connected to resistance R 2 one end, resistance R 2 other ends are electrically connected to the positive pole of diode D1, the negative pole of diode D1 is electrically connected to the positive pole of BT1, one end of capacitor C 10 and LPC2132 microcontroller respectively, and the other end of capacitor C 10 is connected with the negative electricity of BT1.
4. the radio-frequency reading-writing device of good stability according to claim 1, is characterized in that, also comprises and is positioned at the crystal oscillating circuit (13) of housing and is positioned at the replacement button (14) on housing, and crystal oscillating circuit and replacement button are all electrically connected to microcontroller.
5. the radio-frequency reading-writing device of good stability according to claim 1, is characterized in that, described one-level power-switching circuit comprises LM2940CT-5.0 low-dropout regulator, capacitor C 3 and capacitor C 4; The input end of LM2940CT-5.0 low-dropout regulator is electrically connected to direct supply, and capacitor C 3 and capacitor C 4 are parallel between the output and ground of low-dropout regulator.
6. the radio-frequency reading-writing device of good stability according to claim 1, it is characterized in that, described secondary power supply change-over circuit comprises ASM1117-3.3 low-dropout regulator, resistance R 3, light emitting diode D2, capacitor C 11, capacitor C 12, capacitor C 13 and capacitor C 14; Capacitor C 11 and capacitor C 12 are parallel between the output terminal and earth terminal of low-dropout regulator, and capacitor C 13 and capacitor C 14 are parallel between the input end and earth terminal of low-dropout regulator; The input end of ASM1117-3.3 low-dropout regulator is electrically connected to the positive pole of resistance R 3, light emitting diode D2 successively, light emitting diode D2 minus earth.
7. according to the radio-frequency reading-writing device of the good stability described in claim 1 or 2 or 3 or 4 or 5 or 6, it is characterized in that, the frequency of operation of radio-frequency (RF) transceiver is 135kHz, 13.56MHz, 27.125MHz or 2.45GHz.
8. according to the radio-frequency reading-writing device of the good stability described in claim 1 or 2 or 3 or 4 or 5 or 6, it is characterized in that, the length of antenna is 28 to 32 millimeters.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420083816.0U CN203838729U (en) | 2014-02-26 | 2014-02-26 | Radio frequency read-write device with good stability |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420083816.0U CN203838729U (en) | 2014-02-26 | 2014-02-26 | Radio frequency read-write device with good stability |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203838729U true CN203838729U (en) | 2014-09-17 |
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ID=51516544
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420083816.0U Expired - Fee Related CN203838729U (en) | 2014-02-26 | 2014-02-26 | Radio frequency read-write device with good stability |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203838729U (en) |
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2014
- 2014-02-26 CN CN201420083816.0U patent/CN203838729U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
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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: 20140917 Termination date: 20150226 |
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| EXPY | Termination of patent right or utility model |