CN202257621U

CN202257621U - Integral module with near field communication-electronic product code (NFC-EPC) functions

Info

Publication number: CN202257621U
Application number: CN2011203750001U
Authority: CN
Inventors: 关亮中; 杨天露; 李俊辰
Original assignee: CHENGDU VISION TECHNOLOGY DEVELOPMENT CO LTD
Current assignee: CHENGDU VISION TECHNOLOGY DEVELOPMENT CO LTD
Priority date: 2011-09-29
Filing date: 2011-09-29
Publication date: 2012-05-30
Anticipated expiration: 2021-09-29

Abstract

The utility model discloses an integral module with a near field communication-electronic product code (NFC-EPC) functions, comprising an EPC module circuit, and an NFC module circuit which is connected with the EPC module circuit; wherein, an I2C data communication interface of the EPC module circuit is mutually connected with the I2C data communication interface of the NFC module circuit; and the power supply interface of the EPC module circuit is mutually connected with the battery power interface of the NFC module circuit. The integral module with the NFC-EPC functions has low module power consumption and a small size, simultaneously is provided with the NFC and EPC functions, is extremely easy to integrate onto a cell phone, so that the cell phone becomes an Internet of Things cell phone capable of simultaneously realizing NFC payment application and EPC anti-counterfeiting traceability application.

Description

A kind of integrated module of compatible NFC-EPC function

Technical field

The utility model relates to a kind of module of Internet of Things application, relates in particular to mobile payment, the false proof compatible mould of function of tracing to the source.

Background technology

At present; Mobile payment and the false proof application of tracing to the source are the two big fields that Internet of Things is used; The NFC technical standard is extensively adopted in international and domestic non-contact mobile payment field; Be the mobile phone mobile payment use pilot widest in area, have the greatest impact, support enterprise and organize maximum schemes, the bank of heavyweight, mobile operator, intelligent card vendor, portable terminal manufacturer have almost all added the NFC camp, the NFC business is in the fast-growing period.NFC payment application carrier is a mobile phone, and NFC chipset or module are integrated on cell phone rear cover or the mainboard.Present several big mobile-phone manufacturers are like NFC mobile phones that tried the water such as Nokia, Samsung, Motorola, LG.But the NFC mobile phone can not be realized the false proof application of tracing to the source of EPC.

International and domestic be widely used in false proofly trace to the source, Internet of Things fields such as warehouse logistics, asset management then be to adopt the EPC technical standard; False proof tracing to the source especially presses for; Anxious a kind of technology of the public or equipment come product is carried out false proof tracing to the source, and businessman of an established trade mark also needs such equipment and technology to protect oneself brand and legitimate rights and interests.

Till present stage, be used for the reader that the EPC label is discerned is comprised fixed read write line hand-held read write line and other.Because the restriction of portability and cost, fixedly all be inappropriate for popular the use with the hand-held read write line, can't reach the purpose of immediate inquiring behind the purchase commodity.Thereby integrated EPC read-write capability also is one of each RFID technology direction that businessman's research is provided to the mobile phone.

Summary of the invention

The purpose of the utility model provides a kind of integrated module of compatible NFC-EPC function; Solve the defective that the NFC mobile phone can't realize that EPC traces to the source and uses; Also solved EPC and traced to the source to use and lack low cost, the ordinary populace that the read-write equipment that is prone to popularize causes can not be in time to the defective of purchasing merchandise query.This module dissipation is low, size is little, has NFC function and EPC function simultaneously.

To achieve these goals, the technical scheme of the utility model employing is following:

A kind of integrated module of compatible NFC-EPC function comprises the EPC modular circuit, and the NFC modular circuit that links to each other with this EPC modular circuit.

Further, described EPC modular circuit comprises the EPC chip, the crystal oscillator X1, voltage stabilizer LDO, Balun, coupling mechanism, GPIO interface, EPC interrupt interface, the I2C data communication interface that are connected with this EPC chip respectively; And the power interface VCC and the EPC that link to each other with voltage stabilizer LDO enable interface, and the EPC antennal interface that links to each other with coupling mechanism is with the power amplifier PA that is connected with voltage stabilizer LDO, coupling mechanism and Balun respectively.

Wherein, said EPC chip is single SOC chip of compatible ISO 18000-6C/EPC Global Gen II agreement; Said voltage stabilizer LDO is provided with EPC and enables the control port that enables that interface is connected.

Further; Described NFC modular circuit comprises the NFC chip, the field effect transistor M OSFET that links to each other with this NFC chip respectively, crystal oscillator X2, antenna-matching circuit, GPIO interface, NFC interrupt interface, I2C data communication interface, battery supply interface, cellular phone power supplies administrative unit power interface, NFC_SWP interface, NFC_WI interface; The NFC antennal interface that links to each other with antenna-matching circuit; And the NFC that is connected with field effect transistor M OSFET enables interface.Wherein, said NFC chip is the wireless near field communication chip of compatible NFC-IP1, NFC-IP2 standard.

Again further, the I2C data communication interface of said EPC modular circuit and the I2C data communication interface of NFC modular circuit interconnect, and the battery supply interface of the power interface of said EPC modular circuit and NFC modular circuit interconnects.

Compared with prior art, the beneficial effect of the utility model is:

(1), the modular structure of the utility model is simple, size is little, very easily be integrated in the mobile phone.

(2), the mobile phone of integrated module has realized that the NFC payment realizes the false proof application of tracing to the source of EPC again when using.

Description of drawings

Fig. 1 is the structure principle chart of the utility model-embodiment.

Embodiment

Below in conjunction with accompanying drawing and embodiment the utility model is described further.The embodiment of the utility model includes but not limited to the following example.

Embodiment

Fig. 1 illustrates, and the integrated module of the described a kind of compatible NFC-EPC function of the utility model comprises the EPC modular circuit, and the NFC modular circuit that links to each other with this EPC modular circuit.

The EPC modular circuit comprises the EPC chip, the crystal oscillator X1, voltage stabilizer LDO, Balun, coupling mechanism, GPIO interface, EPC interrupt interface, the I2C data communication interface that are connected with this EPC chip respectively; The power interface VCC and the EPC that link to each other with voltage stabilizer enable interface; The EPC antennal interface that links to each other with coupling mechanism; And the power amplifier PA that is connected with voltage stabilizer LDO, coupling mechanism and Balun respectively; And LDO has the control port of enabling.

Wherein, the EPC read-write chip is compatible ISO 18000-6C/EPC Global Gen II agreement, and its inside is integrated with 900MHz RF transmit-receive circuit and baseband modulation and demodulation circuit, and the outside is provided with single SOC chip of I2C data communication interface.The EPC chip can send or receive the radiofrequency signal that satisfies ISO 18000-6C/EPC Global Gen II air interface protocol, and in addition modulation is handled, thereby realizes the contactless communication with the EPC label; LDO is that EPC chip and PA provide the stabilized power source input, and crystal oscillator X1 provides clock signal for the EPC chip; Balun is a non-equilibrium signal with the balanced radio frequency conversion of signals of EPC chip Tx end output, and realizes the 50 line impedance couplings of beatting up; Power amplifier PA is low-power consumption, low noise PA, to carrying out processing and amplifying through the non-equilibrium radiofrequency signal of Balun conversion; Coupling mechanism is used for the conversion of signals of Tx-to-Rx; The radiofrequency signal that to pass through the PA amplification directly goes to the EPC antennal interface; Launch through the EPC antenna, realize that simultaneously Tx holds the Signal Spacing of Rx end, and the radiofrequency signal that the EPC antenna receives is coupled to the Rx end of EPC chip.

This routine NFC modular circuit comprises the NFC chip, the field effect transistor M OSFET that links to each other with this NFC chip respectively, crystal oscillator X2, antenna-matching circuit, GPIO interface, interrupt interface, I2C data communication interface, battery supply interface, cellular phone power supplies administrative unit power interface, SWP interface, NFC-WI interface; The NFC antennal interface that links to each other with antenna-matching circuit; And the NFC that is connected with field effect transistor M OSFET enables interface.

Wherein, the NFC chip is compatible NFC-IP1, NFC-IP2 standard, and highly integrated can separating is in harmonious proportion the wireless near field communication chip of the multiple 13.56MHz wireless communication protocol of modulation, supports NFC snap gauge plan, read write line and three kinds of operator schemes of point-to-point communication; Metal-oxide-semiconductor plays the effect of NFC enable switch; Crystal oscillator X2 provides oscillator signal for the NFC chip; Antenna-matching circuit can obtain electric energy chip for driving work (when the NFC chip is in snap gauge plan operator scheme) through electromagnetic induction from the NFC read write line on the one hand, can also launch NFC wireless modulated signals (when the NFC chip is in read write line, point-to-point communication operator scheme) on the other hand.

The I2C data communication interface of the EPC modular circuit of present embodiment and the I2C data communication interface of NFC modular circuit are same interface, and the battery supply interface of the power interface of said EPC modular circuit and NFC modular circuit is same interface.

Main electronic devices and components title, model and the manufacturer etc. that adopt in the present embodiment are as shown in table 1;

No	Title	Model	Manufacturer	Consumption
					1	The EPC chip	PR9000	Phychips	1
2	LDO	ELM88303BA-X	ELM	1
					3	PA	UPG2314T5N	CEL	1
4	Coupling mechanism	CP0603A0942CL	AVX	1
					5	Balun	The LC equivalent electrical circuit
6	The EPC crystal oscillator	CX2016SB20000D0GEJZ1	Kyocera	1
					7	The NFC chip	PN544	NXP	1
8	Metal-oxide-semiconductor	PMZ390UN	NXP	1
					9	The NFC crystal oscillator	QUARTZ 27.12MHz	Golledge	1

Table 1

In fact except above-mentioned main electronic devices and components; Present embodiment also comprises resistance, electric capacity, the inductance component of some slim little encapsulation; Additional device when these components and parts are above-mentioned main electronic devices and components work; Its method to set up is a conventional method, belongs to the current techique of the industry, repeats no more at this.

The external interface of present embodiment is described as shown in table 2:

Table 2

Mobile phone state	The PVDD input	The NFC_ENABLE input	The NFC enabled
				Close	0V	Low	Enable
Close	0V	High	Enable
				Open	1.8V	Low	Do not enable
Open	1.8V	High	Enable

Table 3

Embodiment is integrated together NFC, EPC modular circuit, through the SIP encapsulation technology, is packaged into a module, shared I2C bus, power interface, a shared cover communication protocol.

Present embodiment can directly be used for mobile phone, and for the NFC payment function, present embodiment provides NFC_WI interface and NFC_SWP interface, and cell phone manufacturer can select security module voluntarily, perhaps directly selects SIM to use as secret unit.In the mobile phone EPC, the NFC application program of supporting present embodiment must be installed, could well use present embodiment.

The mobile phone of integrated present embodiment can work in following three kinds of modules: work in the point-to-point communication pattern, two mobile phones that all are integrated with present embodiment can transmit file or data mutually; Work in the snap gauge simulation models, mobile phone can be used as a card and is used for gate control system, pays by mails; Work in reader/writer module, mobile phone can be to compatible ISO1443A/B, the EPC label of the label of ISO15693 or card, Felica card, Mifare card, ISO18000-6C standard or stick into row identification or read-write.

The mobile phone of integrated present embodiment can be realized mobile payment simultaneously, the Application in Anti-counterfeiting of tracing to the source, and makes mobile phone become the mobile phone on the real Internet of Things meaning.

Claims

1. the integrated module of a compatible NFC-EPC function is characterized in that: comprise the EPC modular circuit, and the NFC modular circuit that links to each other with this EPC modular circuit.

2. the integrated module of a kind of compatible NFC-EPC function according to claim 1; It is characterized in that: described EPC modular circuit comprises the EPC chip, the crystal oscillator X1, voltage stabilizer LDO, Balun, coupling mechanism, GPIO interface, EPC interrupt interface, the I2C data communication interface that are connected with this EPC chip respectively; And the power interface VCC and the EPC that link to each other with voltage stabilizer LDO enable interface, and the EPC antennal interface that links to each other with coupling mechanism is with the power amplifier PA that is connected with voltage stabilizer LDO, coupling mechanism and Balun respectively.

3. the integrated module of a kind of compatible NFC-EPC function according to claim 2 is characterized in that, said EPC chip is single SOC chip of compatible ISO 18000-6C/EPC Global Gen II agreement.

4. the integrated module of a kind of compatible NFC-EPC function according to claim 2 is characterized in that, said voltage stabilizer LDO is provided with EPC and enables the control port that enables that interface is connected.

5. the integrated module of a kind of compatible NFC-EPC function according to claim 1; It is characterized in that: described NFC modular circuit comprises the NFC chip, the field effect transistor M OSFET that links to each other with this NFC chip respectively, crystal oscillator X2, antenna-matching circuit, GPIO interface, NFC interrupt interface, I2C data communication interface, battery supply interface, cellular phone power supplies administrative unit power interface, NFC_SWP interface, NFC_WI interface; The NFC antennal interface that links to each other with antenna-matching circuit; And the NFC that is connected with field effect transistor M OSFET enables interface.

6. the integrated module of a kind of compatible NFC-EPC function according to claim 5 is characterized in that: said NFC chip is the wireless near field communication chip of compatible NFC-IP1, NFC-IP2 standard.

7. according to the integrated module of claim 2 or 5 described a kind of compatible NFC-EPC functions; It is characterized in that: the I2C data communication interface of said EPC modular circuit and the I2C data communication interface of NFC modular circuit interconnect, and the battery supply interface of the power interface of said EPC modular circuit and NFC modular circuit interconnects.