CN205621036U - Treatment circuit based on RFID technique - Google Patents
Treatment circuit based on RFID technique Download PDFInfo
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- CN205621036U CN205621036U CN201620352829.2U CN201620352829U CN205621036U CN 205621036 U CN205621036 U CN 205621036U CN 201620352829 U CN201620352829 U CN 201620352829U CN 205621036 U CN205621036 U CN 205621036U
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Abstract
The utility model discloses a treatment circuit based on RFID technique draws together host processing circuit, indicator lamp circuit, 2.4G module circuit and SWIM module J1, indicator lamp circuit, 2.4G module circuit and SWIM module J1 are connected respectively to the host processing circuit, the host processing circuit is including handling chip U1, reset circuit, supply circuit and dabbing switch KEY, reset circuit includes electric capacity C2 and pull -up resistance R4, reset circuit connects on KNRSTPA1 (HS) the foot of handling chip U1, supply circuit includes filter capacitance C3 and power supply VCC, filter capacitance C3 connects between power supply VCC and ground, and power supply VCC connects on the VDD foot of handling chip U1, can be effectual receive and dispatch recognition process to radiofrequency signal, improve the sensitivity of whole circuit.
Description
Technical field
This utility model relates to technical field of RFID, specifically, is a kind of process circuit based on RFID technique.
Background technology
RF identification, RFID(Radio Frequency Identification) technology, also known as radio frequency identification, is a kind of communication technology, radio signals identification specific objective can be passed through and read and write related data, and set up machinery or optical contact between system and specific objective without identifying.
Radio frequency is usually microwave, 1-100GHz, it is adaptable to short distance identification communicates.
Rfid interrogator also divides movable type and fixed, and the application of current RFID technique is very wide, and such as: library, gate control system, food safety is traced to the source.
Radio-frequency (RF) tag is the physical support of product electronic code (EPC), is attached on traceable article, can circulation worldwide be identified it and read and write.RFID(Radio Frequency
Identification) technology is paid close attention to by people in recent years as the key technology building " Internet of Things ".RFID technology early originates from Britain, is applied in World War II distinguish that enemy and we's aircraft identity, the sixties in 20th century start commercialization.RFID technique is a kind of automatic identification technology, and U.S. Department of Defense specifies
After 1 day January in 2005, all military materials will use RFID label tag；FDA Food and Drug Administration (FDA) suggestion pharmaceutical manufacturer utilized RFID to follow the tracks of the medicine often faked from 2006.A series of action such as Walmart, Metro retail business application RFID technique have promoted RFID in global application upsurge especially.When 2000, each RFID
The price of label is 1 dollar.Many researcheres think that RFID label tag is much more expensive, and only reducing cost could large-scale application.When 2005, the price of each RFID label tag is about 12 cents, and the price of present ultrahigh frequency RFID is about 10 cents.Can RFID wants large-scale application, is on the one hand intended to reduce RFID label tag price, bring value-added service after on the other hand seeing application RFID.The statistical data of statistics office of European Union shows, 2010, European Union had the company of 3% to apply
RFID technique, application distribution identity document and access control, supply chain and inventory tracking, vehicle toll collection, antitheft, produce control, asset management.
RF identification (RFID) is a kind of wireless communication technology, can pass through radio signals identification specific objective and read and write related data, and set up machinery or optical contact between system and specific objective without identifying.
Wireless signal is the electromagnetic field by furnishing radio frequency, and data are sent out on the label being attached to article, with automatic identification and these article of tracking.Some label can be obtained by energy when identifying from the electromagnetic field that evaluator sends, and is not required to battery；Also label itself is had to have power supply, it is possible to actively to send radio wave (electromagnetic field of furnishing radio frequency).Label contains the information of Electronic saving, can identify within several meters.Unlike bar code, within radio-frequency (RF) tag need not be in evaluator sight line, it is also possible within embedding tracked object.
Many industries have all used REID.Label is attached to an automobile the most aborning, and this car progress on a production line just can be followed the trail of by manufacturer.The place of medicine can be followed the trail of in warehouse.Radio-frequency (RF) tag can also invest on domestic animal and house pet, conveniently to domestic animal and the actively identification of house pet (the positive identification meaning is to prevent several domestic animals from using same identity).The identification card of RF identification can make employee get enter into the building part of pinning, and the radio frequency transponder on automobile may also be used for the expense imposing charging section with parking lot.
Some radio-frequency (RF) tag is attached on medicated clothing, personal effects, within even implanting human body.Owing to this technology may read personal information without me in the case of permitting, this technology also has invasion of privacy suffering.
The basic functional principle of RFID technique is the most uncomplicated: after label enters magnetic field, receive the radiofrequency signal that plug-in reader sends, the energy obtained by faradic current sends out storage product information (passive label or passive tag) in the chips, or is actively sent the signal (Active of a certain frequency by label
Tag, active label or active tag), after plug-in reader reads information and decodes, deliver to CIS and carry out relevant data process.
The rfid system of complete set, it is made up of reader and electronic tag i.e. so-called transponder and application software system three part, its operation principle is the radio wave energy that Reader launches a characteristic frequency, in order to drive circuit, internal data are sent, now Reader just received in sequence unscrambling data
Give application program and do corresponding process.
To be generally segmented into from the point of view of the communication between rfid card sheet reader and electronic tag and energy-sensitive mode: inductively and back scattering couple two kinds.The RFID of general low frequency mostly uses the first formula, and higher-frequency uses the second way mostly.
Reader is different with technology according to the structure used can be to read or read/write device, is that rfid system information controls and processing center.Reader is generally made up of coupling module, transceiver module, control module and interface unit.Between reader and transponder, general employing half-duplex operation mode carries out information exchange, and reader provides energy and sequential by being coupled to passive balise simultaneously.In actual applications, the management functions such as collection, process and teletransmission to object identification information can be realized by Ethernet or WLAN etc. further.Transponder is the information carrier of rfid system, and transponder is formed parasitic element by coupling element (coil, microstrip antenna etc.) and microchip mostly.
Utility model content
The purpose of this utility model is to provide a kind of process circuit based on RFID technique, and a kind of RF identification based on RFID technique design processes circuit, it is possible to effective carry out radiofrequency signal receives and dispatches identifying processing, improves the susceptiveness of whole circuit.
This utility model is achieved through the following technical solutions: a kind of process circuit based on RFID technique, including main process circuit, indicator light circuit, 2.4G modular circuit and SWIM module J 1, described main process circuit connects indicator light circuit, 2.4G modular circuit and SWIM module J 1 respectively.
Further for preferably realizing this utility model, use the following structure that arranges especially: described main process circuit includes processing chip U1, reset circuit, power supply circuits and touch-switch KEY, described reset circuit includes electric capacity C2 and pull-up resistor R4, and described reset circuit is connected to process on KNRST/PA1 (HS) foot of chip U1；Described power supply circuits include that filter capacitor C3 and power supply VCC, described filter capacitor C3 are connected between power supply VCC and ground, and power supply VCC is connected to process on the VDD foot of chip U1；PB3 (HS) the TIM2_TRIG/COMP2_CH2 foot of described process chip U1 is connected to ground by touch-switch KEY.
Further for preferably realizing this utility model, use the following structure that arranges especially: described power supply VCC is 3.3v.
Further for preferably realizing this utility model, use the following structure that arranges especially: described indicator light circuit includes LED1 circuit and LED2 circuit, described LED1 circuit is made up of the light emitting diode D1 being serially connected and resistance R2, and described LED2 circuit is made up of the light emitting diode D2 being serially connected and resistance R3；Described LED1 is electrically connected to process on PB1 (HS) the TIM3_CH1/COMP1_CH2 foot of chip U1, and described LED2 is electrically connected to process on PB0 (the HS)/TIM2/COMP1_CH1 foot of chip U1.
Further for preferably realizing this utility model, use the following structure that arranges especially: described 2.4G modular circuit includes 2.4G module P4 and 2.4G power circuit, described 2.4G power circuit is made up of power supply VCC and filter capacitor C5, and 1 foot of described 2.4G module P4 connects 2.4G power circuit；2 foot ground connection of described 2.4G module P4, 3 foot connections of described 2.4G module P4 process RA2 (HS) foot of chip U1, 4 foot connections of described 2.4G module P4 process PB4 (HS) the SPI_NSS foot of chip U1, 5 foot connections of described 2.4G module P4 process PB5 (HS) the SPI_SCK foot of chip U1, 6 foot connections of described 2.4G module P4 process PB6 (HS) the SPI_MOSI foot of chip U1, 7 foot connections of described 2.4G module P4 process PB7 (HS) the SPI_MISO foot of chip U1, 8 foot connections of described 2.4G module P4 process RA3 (HS) foot of chip U1.
Further for preferably realizing this utility model, use the following structure that arranges especially: 1 foot of described SWIM module J 1 connects power supply VCC, 2 feet of described SWIM module J 1 are connected with PA0 (HS) the SWIM/BEEP/IR_TIM foot processing chip U1,3 foot ground connection of described SWIM module J 1, described SWIM module J 14 feet with process chip U1 KNRST/PA1 (HS) foot be connected.
Further for preferably realizing this utility model, use the following structure that arranges especially: described process chip U1 uses STM8L101XX.
This utility model compared with prior art, has the following advantages and beneficial effect:
A kind of RF identification that this utility model designs based on RFID technique processes circuit, it is possible to effective carry out radiofrequency signal receives and dispatches identifying processing, improves the susceptiveness of whole circuit.
Accompanying drawing explanation
Fig. 1 is main process circuit diagram described in the utility model
Fig. 2 is indicator light circuit figure described in the utility model
Fig. 3 is 2.4G module circuit diagram described in the utility model
Fig. 4 is SWIM module J 1 schematic diagram described in the utility model.
Detailed description of the invention
Below in conjunction with embodiment, this utility model is described in further detail, but embodiment of the present utility model is not limited to this.
Embodiment 1:
A kind of process circuit based on RFID technique, such as Fig. 1, Fig. 2, Fig. 3, shown in Fig. 4, including main process circuit, indicator light circuit, 2.4G modular circuit and SWIM module J 1, described main process circuit connects indicator light circuit respectively, 2.4G modular circuit and SWIM module J 1, SWIM be one based on asynchronous (asynchronous), fill by force electric current (high sink) (8mA), open-drain, the single bus interface of two-way communication (bidirectional communication), its 1 foot is power vd D foot, 2 feet are data DATA foot, 3 feet are GND grounding leg, 4 feet are reset resetting pin.
Embodiment 2:
The present embodiment is to optimize further on the basis of above-described embodiment, further for preferably realizing this utility model, as shown in Figure 1, Figure 2, Figure 3, Figure 4, use the following structure that arranges especially: described main process circuit includes processing chip U1, reset circuit, power supply circuits and touch-switch KEY, described reset circuit includes electric capacity C2 and pull-up resistor R4, and described reset circuit is connected to process on KNRST/PA1 (HS) foot of chip U1；Described power supply circuits include that filter capacitor C3 and power supply VCC, described filter capacitor C3 are connected between power supply VCC and ground, and power supply VCC is connected to process on the VDD foot of chip U1；PB3 (HS) the TIM2_TRIG/COMP2_CH2 foot of described process chip U1 is connected to ground by touch-switch KEY.
Described electric capacity C2 and electric capacity C3 all uses 104Pf patch capacitor, described pull-up resistor R4 uses 10K resistance, described touch-switch KEY, uses press button.
Embodiment 3:
The present embodiment is to optimize further on the basis of above-described embodiment, further for preferably to realize this utility model, as shown in Figure 1, Figure 2, Figure 3, Figure 4, uses the following structure that arranges especially: described power supply VCC is 3.3v.
Embodiment 4:
The present embodiment is to optimize further on the basis of above-described embodiment, further for preferably realizing this utility model, as shown in Figure 1, Figure 2, Figure 3, Figure 4, use the following structure that arranges especially: described indicator light circuit includes LED1 circuit and LED2 circuit, described LED1 circuit is made up of the light emitting diode D1 being serially connected and resistance R2, and described LED2 circuit is made up of the light emitting diode D2 being serially connected and resistance R3；Described LED1 is electrically connected to process on PB1 (HS) the TIM3_CH1/COMP1_CH2 foot of chip U1, and described LED2 is electrically connected to process on PB0 (the HS)/TIM2/COMP1_CH1 foot of chip U1.
Described resistance R2 and resistance R3 all uses 1k resistance.
Embodiment 5:
The present embodiment is to optimize further on the basis of above-described embodiment, further for preferably realizing this utility model, as shown in Figure 1, Figure 2, Figure 3, Figure 4, use the following structure that arranges especially: described 2.4G modular circuit includes 2.4G module P4 and 2.4G power circuit, described 2.4G power circuit is made up of power supply VCC and filter capacitor C5, and 1 foot of described 2.4G module P4 connects 2.4G power circuit；2 foot ground connection of described 2.4G module P4, 3 foot connections of described 2.4G module P4 process RA2 (HS) foot of chip U1, 4 foot connections of described 2.4G module P4 process PB4 (HS) the SPI_NSS foot of chip U1, 5 foot connections of described 2.4G module P4 process PB5 (HS) the SPI_SCK foot of chip U1, 6 foot connections of described 2.4G module P4 process PB6 (HS) the SPI_MOSI foot of chip U1, 7 foot connections of described 2.4G module P4 process PB7 (HS) the SPI_MISO foot of chip U1, 8 foot connections of described 2.4G module P4 process RA3 (HS) foot of chip U1；Described filter capacitor C5 uses 104Patch capacitor.
Embodiment 6:
The present embodiment is to optimize further on the basis of above-described embodiment, further for preferably realizing this utility model, as shown in Figure 1, Figure 2, Figure 3, Figure 4, use the following structure that arranges especially: 1 foot of described SWIM module J 1 connects power supply VCC, 2 feet of described SWIM module J 1 are connected with PA0 (HS) the SWIM/BEEP/IR_TIM foot processing chip U1,3 foot ground connection of described SWIM module J 1, described SWIM module J 14 feet with process chip U1 KNRST/PA1 (HS) foot be connected.
Embodiment 7:
The present embodiment is to optimize further on the basis of embodiment 2-6 any embodiment, further for preferably to realize this utility model, as shown in Figure 1, Figure 2, Figure 3, Figure 4, uses the following structure that arranges especially: described process chip U1 uses STM8L101XX；2.4G module P4 uses nrf24L01 chip.
The above; it it is only preferred embodiment of the present utility model; not this utility model is done any pro forma restriction, every according to technical spirit of the present utility model, above example is made any simple modification, equivalent variations, within each falling within protection domain of the present utility model.
Claims (7)
1. a process circuit based on RFID technique, it is characterised in that: include that main process circuit, indicator light circuit, 2.4G modular circuit and SWIM module J 1, described main process circuit connect indicator light circuit, 2.4G modular circuit and SWIM module J 1 respectively.
A kind of process circuit based on RFID technique the most according to claim 1, it is characterized in that: described main process circuit includes processing chip U1, reset circuit, power supply circuits and touch-switch KEY, described reset circuit includes electric capacity C2 and pull-up resistor R4, and described reset circuit is connected to process on KNRST/PA1 (HS) foot of chip U1；Described power supply circuits include that filter capacitor C3 and power supply VCC, described filter capacitor C3 are connected between power supply VCC and ground, and power supply VCC is connected to process on the VDD foot of chip U1；PB3 (HS) the TIM2_TRIG/COMP2_CH2 foot of described process chip U1 is connected to ground by touch-switch KEY.
A kind of process circuit based on RFID technique the most according to claim 2, it is characterised in that: described power supply VCC is 3.3v.
A kind of process circuit based on RFID technique the most according to claim 3, it is characterized in that: described indicator light circuit includes LED1 circuit and LED2 circuit, described LED1 circuit is made up of the light emitting diode D1 being serially connected and resistance R2, and described LED2 circuit is made up of the light emitting diode D2 being serially connected and resistance R3；Described LED1 is electrically connected to process on PB1 (HS) the TIM3_CH1/COMP1_CH2 foot of chip U1, and described LED2 is electrically connected to process on PB0 (the HS)/TIM2/COMP1_CH1 foot of chip U1.
A kind of process circuit based on RFID technique the most according to claim 4, it is characterized in that: described 2.4G modular circuit includes 2.4G module P4 and 2.4G power circuit, described 2.4G power circuit is made up of power supply VCC and filter capacitor C5, and 1 foot of described 2.4G module P4 connects 2.4G power circuit；2 foot ground connection of described 2.4G module P4, 3 foot connections of described 2.4G module P4 process RA2 (HS) foot of chip U1, 4 foot connections of described 2.4G module P4 process PB4 (HS) the SPI_NSS foot of chip U1, 5 foot connections of described 2.4G module P4 process PB5 (HS) the SPI_SCK foot of chip U1, 6 foot connections of described 2.4G module P4 process PB6 (HS) the SPI_MOSI foot of chip U1, 7 foot connections of described 2.4G module P4 process PB7 (HS) the SPI_MISO foot of chip U1, 8 foot connections of described 2.4G module P4 process RA3 (HS) foot of chip U1.
A kind of process circuit based on RFID technique the most according to claim 5, it is characterized in that: 1 foot of described SWIM module J 1 connects power supply VCC, 2 feet of described SWIM module J 1 are connected with PA0 (HS) the SWIM/BEEP/IR_TIM foot processing chip U1,3 foot ground connection of described SWIM module J 1, described SWIM module J 14 feet with process chip U1 KNRST/PA1 (HS) foot be connected.
7. according to a kind of based on RFID technique the process circuit described in any one of claim 2-6, it is characterised in that: described process chip U1 uses STM8L101XX.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620352829.2U CN205621036U (en) | 2016-04-25 | 2016-04-25 | Treatment circuit based on RFID technique |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620352829.2U CN205621036U (en) | 2016-04-25 | 2016-04-25 | Treatment circuit based on RFID technique |
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| Publication Number | Publication Date |
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| CN205621036U true CN205621036U (en) | 2016-10-05 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201620352829.2U Expired - Fee Related CN205621036U (en) | 2016-04-25 | 2016-04-25 | Treatment circuit based on RFID technique |
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2016
- 2016-04-25 CN CN201620352829.2U patent/CN205621036U/en not_active Expired - Fee Related
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| 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: 20161005 Termination date: 20190425 |
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| CF01 | Termination of patent right due to non-payment of annual fee |