CN112989849A

CN112989849A - Portable RFID temperature reading and writing device and mobile terminal

Info

Publication number: CN112989849A
Application number: CN201911293705.6A
Authority: CN
Inventors: 金新振; 朱华林; 丁振洲; 项云
Original assignee: Dayanhe Farm Jindong District Jinhua City
Current assignee: Jinhua Zhixin Technology Co ltd
Priority date: 2019-12-13
Filing date: 2019-12-13
Publication date: 2021-06-18

Abstract

The application relates to a portable RFID temperature read-write equipment and mobile terminal, wherein, portable RFID temperature read-write equipment includes: a housing; the wireless energy carrying communication subsystem is used for transmitting electric energy and data to the RFID temperature tag; the demodulation subsystem is used for demodulating the signal sent by the RFID temperature tag; a conformal antenna, comprising: an impedance matching circuit and a feed bridge disposed on a dielectric substrate made of a high dielectric rare earth material; the radiation oscillator of the conformal antenna is formed by a shell, and a high-dielectric rare earth material layer is arranged on the shell; a directional coupler for providing a wireless radio frequency signal to the conformal antenna and a wireless radio frequency signal to the demodulation subsystem; and the digital signal processor is used for generating an instruction for controlling the RFID temperature tag to detect the temperature and processing the ID and the temperature data of the RFID temperature tag. Therefore, the portable RFID temperature reading-writing device is realized.

Description

Portable RFID temperature reading and writing device and mobile terminal

Technical Field

The application relates to the technical field of Radio Frequency Identification (RFID for short) temperature detection, in particular to a portable RFID temperature read-write device and a mobile terminal.

Background

The existing RFID system comprises an RFID label, a reader-writer and a data access cloud device. For example, in the field of ETC automatic charging, the RFID is in a card form, the reader-writer is in a suspension type, and the data access cloud end adopts Ethernet; if be used in the clothing trade, then RFID is the trade mark form, and suspension type passageway read write line is for batch check usefulness, and handheld quick-witted POST appearance is used for patrolling and examining, inserts the high in the clouds and adopts modules such as ethernet, 4G, GPRS.

The inventor of the application finds that: the cost is high due to the intelligent CPU hardware with independent reader-writer. In addition, the size of the reader-writer antenna is too large, and the reader-writer antenna is inconvenient to carry. Finally, the RFID only acquires the identity ID function.

Disclosure of Invention

In order to solve the technical problems or at least partially solve the technical problems, the application provides a portable RFID temperature reading and writing device and a mobile terminal.

In a first aspect, the present application provides a portable RFID temperature reading/writing device, including: a housing; the system comprises a Wireless energy carrying communication (SWIPT) subsystem, a Wireless temperature sensing and transmitting subsystem and a Wireless Power transmission (RFID temperature tag) subsystem, wherein the Wireless energy carrying communication (SWIPT) subsystem is used for modulating first data by using energy carriers to obtain a first Wireless radio frequency signal so as to transmit electric energy and the first data to the RFID temperature tag through the first Wireless radio frequency signal; the demodulation subsystem is used for demodulating a second wireless radio frequency signal sent by the RFID temperature tag and demodulating the second wireless radio frequency signal to obtain second data; a conformal antenna for receiving a second wireless radio frequency signal and transmitting a first wireless radio frequency signal, the conformal antenna comprising: the impedance matching circuit and the feed bridge are arranged on a dielectric substrate made of high-dielectric rare earth materials, wherein the dielectric constants of the high-dielectric rare earth materials of the high-dielectric rare earth material layer and the dielectric substrate are more than or equal to 28; a directional coupler coupled to the wireless energy-carrying communication subsystem and the demodulation subsystem for providing a first wireless radio frequency signal to the conformal antenna and a second wireless radio frequency signal to the demodulation subsystem; and a Digital Signal Processor (DSP) coupled to the wireless energy-carrying communication subsystem and the demodulation subsystem for generating first data and processing second data, wherein the first data comprises an instruction for controlling the RFID temperature tag to detect the temperature, and the second data comprises an Identification (ID) of the RFID temperature tag and the temperature data.

In some examples, a wireless energy-carrying communication subsystem, comprising: a digital modulator, an input end of which is coupled with the digital signal processor; the input end of the carrier power proportioner is coupled with the digital modulator and used for modulating the first data by using the energy carrier to obtain a first wireless radio frequency signal so as to transmit electric energy and the first data to the RFID temperature tag through the first wireless radio frequency signal; and the input end of the carrier energy radio frequency power amplifier is coupled with the carrier power proportioner, and the output end of the carrier energy radio frequency power amplifier is coupled with the directional coupler.

In some examples, the wireless energy-carrying communication subsystem further comprises: the temperature measurement energy balance loop control is coupled with the directional coupler and used for generating a feedback signal according to the reflected wave received by the conformal antenna and providing the feedback signal for the carrier power proportioner; and the carrier power proportioner is used for adjusting the power of the energy carrier according to the feedback signal.

In some examples, a digital signal processor is coupled to the carrier power scaler for controlling the carrier power scaler to turn on and off and for controlling the power data size step.

In some examples, further comprising: and the power supply is used for supplying electric energy to the RFID temperature reading-writing device.

In some examples, further comprising: the portable RFID temperature reading and writing device comprises a first interface, a second interface and a control unit, wherein the first interface is configured and adapted to be coupled with the second interface associated with the mobile terminal so as to transmit data and/or power between the portable RFID temperature reading and writing device and the mobile terminal.

In some examples, the RFID temperature tag is a passive RFID temperature tag; and/or the portable RFID temperature reading-writing device and the RFID temperature label are ultrahigh frequency RFID.

In certain embodiments, the high dielectric rare earth material has a dielectric constant between 28 and 108.

In a second aspect, the present application provides an RFID temperature read-write apparatus configured to couple with a mobile terminal, including: the wireless energy-carrying communication subsystem is used for modulating the first data by using an energy carrier to obtain a first wireless radio frequency signal so as to transmit electric energy and the first data to the RFID temperature tag through the first wireless radio frequency signal; the demodulation subsystem is used for demodulating a second wireless radio frequency signal sent by the RFID temperature tag and demodulating the second wireless radio frequency signal to obtain second data; a conformal antenna for receiving a second wireless radio frequency signal and transmitting a first wireless radio frequency signal, the conformal antenna comprising: the antenna comprises an impedance matching circuit and a feed bridge, wherein the impedance matching circuit and the feed bridge are arranged on a dielectric substrate made of high dielectric rare earth materials, wherein a shell of the mobile terminal forms a radiation oscillator of the conformal antenna, and the dielectric constant of the high dielectric rare earth materials of the dielectric substrate is more than or equal to 28; a directional coupler coupled to the wireless energy-carrying communication subsystem and the demodulation subsystem for providing a first wireless radio frequency signal to the conformal antenna and a second wireless radio frequency signal to the demodulation subsystem; and the digital signal processor is coupled with the wireless energy-carrying communication subsystem and the demodulation subsystem and used for generating first data according to instructions of the mobile terminal and providing second data to the mobile terminal, wherein the first data comprises instructions for controlling the RFID temperature tag to carry out temperature detection, and the second data comprises an ID (identity) and temperature data of the RFID temperature tag.

In some examples, a wireless energy-carrying communication subsystem, comprising: a digital modulator, an input end of which is coupled with the digital signal processor; the input end of the carrier power proportioner is coupled with the digital modulator and used for modulating the first data by using the energy carrier to obtain a first wireless radio frequency signal so as to transmit electric energy and the first data to the RFID temperature tag through the first wireless radio frequency signal; the input end of the carrier energy radio frequency power amplifier is coupled with the carrier power proportioner, and the output end of the carrier energy radio frequency power amplifier is coupled with the directional coupler; the temperature measurement energy balance loop control is coupled with the directional coupler and used for generating a feedback signal according to the reflected wave received by the conformal antenna and providing the feedback signal for the carrier power proportioner; and the carrier power proportioner is used for adjusting the power of the energy carrier according to the feedback signal.

In a third aspect, the present application provides a mobile terminal, including any of the above RFID temperature reading and writing devices.

In a fourth aspect, the application provides a mobile terminal having any of the above portable RFID temperature reading and writing devices.

Compared with the prior art, the technical scheme provided by the embodiment of the application has the following advantages: according to the scheme, the conformal antenna made of the high-dielectric rare earth material is used, the size of the antenna oscillator is reduced, the size of impedance matching and feeding is reduced, the portable RFID temperature reading and writing device is achieved, the wireless energy-carrying communication system is used for providing electric energy for the RFID temperature tag, and the RFID temperature reading and writing device is convenient to popularize and use.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the invention and together with the description, serve to explain the principles of the invention.

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious for those skilled in the art that other drawings can be obtained according to the drawings without inventive exercise.

FIG. 1 is a schematic diagram of an embodiment of an RFID temperature detection system according to an embodiment of the present disclosure;

fig. 2 is a hardware schematic diagram of an implementation manner of the portable RFID temperature reading and writing device provided in embodiment 1 of the present application;

fig. 3 is a hardware schematic diagram of an embodiment of a system for performing temperature detection through a portable RFID temperature reading and writing device connected to a mobile terminal according to embodiment 2 of the present application;

fig. 4 is a hardware schematic diagram of an implementation manner of a mobile terminal according to embodiment 3 of the present application;

fig. 5 is a hardware schematic diagram of a part of a mobile terminal according to embodiment 3 of the present application;

fig. 6 is a schematic diagram of an embodiment of a conformal antenna according to embodiments 1 to 3 of the present application;

FIG. 7 is a diagram of an output waveform of the DSP according to the embodiment of the present application;

FIG. 8 is a schematic diagram of an output waveform of the digital modulator of the embodiment of the present application after modulating the signal of FIG. 7;

fig. 9 is a schematic diagram of an output waveform of the carrier power ratio device after modulating the signal in fig. 8 in the embodiment of the present application.

Detailed Description

It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

In the following description, suffixes such as "module", "component", or "unit" used to denote elements are used only for facilitating the explanation of the present invention, and have no specific meaning in itself. Thus, "module", "component" or "unit" may be used mixedly.

In the embodiment of the present application, please refer to fig. 1, an RFID temperature detecting system 300 includes an RFID temperature reading/writing device 1 and an RFID temperature tag 3. In the embodiment of the application, the operating frequency band of the RFID temperature detection system 300 may be Low Frequency (LF), High Frequency (HF), or Ultra High Frequency (UHF), for which reference is made specifically to related standards, which are not described herein again. Generally, when a PCB circuit board is used, the higher the frequency band is, the greater the complexity and volume of the impedance matching circuit of the RFID antenna is.

And the RFID temperature tag 3 is used for detecting the temperature of the object to be measured and uniquely identifying the object to be measured through the ID of the RFID. The object to be measured includes an object, a living body, and the like. The RFID temperature tag 3 can be placed on the surface of the measured object or implanted into the measured object. In some examples, the RFID temperature tag 3 is a passive RFID temperature tag. The RFID temperature reading and writing device 1 is used for supplying electric energy to the RFID temperature label 3 in a radio frequency mode, controlling the RFID temperature label 3 to detect the temperature and reading the ID and the temperature data of the RFID temperature label 3.

The RFID temperature tag 3 is not limited in the embodiment of the present application, and may receive the electric energy and data transmitted by the RFID temperature read/write device 1 in a wireless manner, and include a wireless energy-carrying communication subsystem adapted to the RFID temperature read/write device 1. Existing RFID temperature tags may be employed, for example, RFID temperature tags may include: FR4 PCB circuit board etches RF antenna, temperature sensor and RFID chip.

In some examples, a portable RFID temperature read-write device is provided. In other embodiments, the RFID temperature read-write system is formed by connecting with a mobile terminal such as a smart phone. In still other embodiments, an RFID temperature reading and writing device is built in the mobile terminal to enable the mobile terminal to read and write the RFID temperature.

Some embodiment modes of the RFID temperature reading and writing device according to the embodiment of the present application are described below.

Example 1

In embodiment 1, a portable RFID temperature reading/writing device is provided, in which a high-dielectric low-loss rare earth material is used as an antenna substrate to reduce the size, and a housing is used as a conformal antenna of an antenna component, so that the RFID temperature reading/writing device is convenient to carry. The portable RFID temperature reading and writing device of the embodiment is described below with reference to the drawings.

Referring to fig. 2, which is a hardware schematic diagram of an implementation manner of the portable RFID temperature reading and writing device provided in embodiment 1 of the present application, as shown in fig. 2, the portable RFID temperature reading and writing device 1 includes: a housing 10, a wireless energy-carrying communication subsystem 20, a demodulation subsystem 30, a conformal antenna 40, a directional coupler 50, and a digital signal processor 60, and a power supply 70. Those skilled in the art will appreciate that the portable RFID temperature reader shown in fig. 1 may include more or fewer components than shown, or some components may be combined, or a different arrangement of components.

A power supply 70 for providing power to the wireless energy-carrying communication subsystem 20, the demodulation subsystem 30, the conformal antenna 40, the directional coupler 50, and the digital signal processor 60. In some examples, the power supply 70 includes a battery and power supply circuitry (not shown), the battery being coupled to the power supply circuitry. The power supply circuit comprises a digital power supply circuit for supplying power to the digital circuit part of the portable RFID temperature reading and writing device 1; and an analog power supply circuit for supplying power to the analog circuit portion of the portable RFID temperature reading and writing device 1. Therefore, the power supply isolation of the digital circuit and the analog circuit is realized.

And the wireless energy-carrying communication subsystem 20 is used for modulating the first data by using an energy carrier to obtain a first wireless radio-frequency signal so as to transmit electric energy and the first data to the RFID temperature tag through the first wireless radio-frequency signal. During certain periods of time, the first wireless radio frequency signal transmits power, thereby transmitting power in the form of a wireless radio frequency signal to the RFID temperature tag. In other periods, the first wireless radio frequency signal transmits power and data, thereby transmitting data and power to the RFID temperature tag in a wireless radio frequency signal mode.

And the demodulation subsystem 30 is configured to demodulate the second radio frequency signal sent by the RFID temperature tag, and demodulate the second radio frequency signal to obtain second data. In some examples, the demodulation subsystem 30 includes: the low-noise receiving and amplifying unit 31 is configured to amplify the weak radio frequency signal received by the conformal antenna 40; the carrier suppression unit 32 is used for eliminating carrier leakage caused by the limit of the receiving and transmitting isolation device and reducing interference; and a mixing demodulation unit 33 for converting the received radio frequency signal into a signal that can be processed by an analog-to-digital conversion (a/D) unit.

And the conformal antenna 40 is used for receiving the second radio frequency signal and transmitting the first radio frequency signal. The conformal antenna 40 includes: an impedance matching circuit 41 and a feeding bridge 42, wherein the housing 10 forms a radiating element 43 of the conformal antenna, the housing 10 is provided with a high dielectric rare earth material layer, and the impedance matching circuit 41 and the feeding bridge 42 are arranged on a dielectric substrate made of the high dielectric rare earth material.

A directional coupler 50 coupled to the wireless energy-carrying communication subsystem 20 and the demodulation subsystem 30 for providing a first wireless radio frequency signal to the conformal antenna 40 for transmitting the first wireless radio frequency signal through the conformal antenna 40; and provides the second wireless rf signal to the demodulation subsystem 30 for demodulation processing of the second wireless rf signal by the demodulation subsystem 30.

A digital signal processor 60 coupled to the wireless energy-carrying communication subsystem 20 and the demodulation subsystem 30 for generating first data including instructions for controlling the RFID temperature tag to perform temperature sensing, and processing second data including the ID of the RFID temperature tag and the temperature data. In some embodiments, the digital signal processor 60 includes an analog-to-digital conversion unit (A/D) and a digital-to-analog conversion unit (D/A) for converting analog signals to digital signals and digital signals to analog signals, respectively.

Referring to fig. 2, the portable RFID temperature reading/writing device 1 further includes a voltage-controlled phase-locked local oscillator for generating a high-precision programmable carrier signal.

In some examples, referring to fig. 2, a wireless energy-capable communication subsystem 20 includes: a digital modulator 21 having an input coupled to the digital signal processor 60; a carrier power proportioner 22, an input end of which is coupled with the digital modulator 21, and is configured to modulate the first data by using an energy carrier to obtain a first wireless radio frequency signal, so as to transmit electric energy and the first data to the RFID temperature tag through the first wireless radio frequency signal; and a carrier energy radio frequency power amplifier 23, the input end of which is coupled with the carrier power proportioner 22, and the output end of which is coupled with the directional coupler 50.

In the embodiment of the present application, the digital modulator 21 is configured to perform digital phase pulse quadrature modulation on the first data generated by the digital signal processor 60.

As an example, fig. 7 shows an output waveform of the digital signal processor 60 in the embodiment of the present application, fig. 8 shows an output waveform of the digital modulator 21 after modulation of the signal in fig. 7 in the embodiment of the present application, and fig. 9 shows an output waveform of the carrier power ratio device 22 after modulation of the signal in fig. 8 in the embodiment of the present application.

The distance change between the RFID temperature tag and the portable RFID temperature reading and writing device 1 affects the transmission of electric energy, and further leads to the stability of the working voltage of the RFID temperature tag. In some examples, referring to fig. 2, the wireless energy-capable communication subsystem 20 further includes: and the thermometric energy balance loop controller 24 is coupled with the directional coupler 50, and is used for generating a feedback signal according to the reflected wave received by the conformal antenna 40 and providing the feedback signal to the carrier power proportioner 22. And a carrier power proportioner 22 for adjusting the power of the energy carrier according to the feedback signal, thereby dynamically compensating the electric energy.

In some examples, referring to fig. 2, a dsp 60 is coupled to the carrier power scaler 22 for controlling the carrier power scaler 22 to turn on and off and for controlling the power data step size.

In some examples, referring to FIG. 2, portable RFID temperature reader 1 may include a memory 80 for storing program instructions and data, which may include, but is not limited to, communication protocols and the like. It should be understood that although the memory 80 is parallel to the digital signal processor 60 in fig. 2, this is not a limitation, and in this embodiment, the memory 80 may be a memory inside the digital signal processor 60, which is not limited in this embodiment.

In some examples, the portable RFID temperature reading/writing device 1 may further include a wireless communication module, such as a WiFi module, for communicating with a device on the network to send data to the device on the network and receive data sent by the device on the network, for example, read temperature data detected by the RFID temperature tag; the display unit is used for displaying a graphical user interface, and the read temperature data detected by the RFID temperature tag can be displayed in the graphical user interface; an audio output unit for outputting a sound signal; and a user input unit including one or more physical buttons or the like for inputting a control command. The interface unit includes a Universal Serial Bus (USB) interface and the like, and is used for transmitting power and/or data. The USB interface can include Micro USB, USB Type-A, USB Type C, USB-Micro etc.

Example 2

In embodiment 2, a portable RFID temperature reading/writing device is provided, which uses a high dielectric low-loss rare earth material as an antenna substrate to reduce the size, and is coupled to a mobile terminal through an interface to transmit data and/or power between the portable RFID temperature reading/writing device and the mobile terminal. The present embodiment is described below with reference to fig. 2 and 3.

In embodiment 2 of the present application, the portable RFID temperature reading/writing device 1 is coupled to a mobile terminal such as a smart phone. The portable RFID temperature reading and writing device 1 includes a housing 10, a wireless energy-carrying communication subsystem 20, a demodulation subsystem 30, a conformal antenna 40, a directional coupler 50, and a digital signal processor 60 as shown in fig. 2. Referring to fig. 3, the portable RFID temperature reading/writing device 1 further includes: a first interface 90 configured to couple with a second interface 200 associated with the mobile terminal 2 to transfer data and power between the portable RFID temperature reading and writing device 1 and the mobile terminal 2.

In some examples, the portable RFID temperature reading and writing device 1 has no battery, and power is transmitted from the mobile terminal 2 to the portable RFID temperature reading and writing device 1 through the first interface 90 and the second interface 200, but is not limited thereto.

In embodiment 2 of the present application, the mobile terminal 2 includes, but is not limited to, a portable electronic device such as a smartphone. The mobile terminal 2 may include: a Radio Frequency (RF) unit, a WiFi module, an audio output unit, an a/V (audio/video) input unit, a sensor, a display unit, a user input unit, an interface unit, a memory, a processor, and a power supply.

In embodiment 2 of the present application, a temperature measurement control program (not shown) is stored in a memory of the mobile terminal 2, and when the temperature measurement control program is executed by a processor of the mobile terminal 2, the temperature measurement control program controls the portable RFID temperature read/write device 1 to communicate with the RFID temperature tag, thereby reading temperature data from the RFID temperature tag. The portable RFID temperature reading/writing device 1 supplies the read ID of the RFID temperature tag and the temperature data to the mobile terminal 2. The thermometry control program of the mobile terminal 2 processes the temperature data, including but not limited to displaying the temperature data, sending the temperature data to devices on the network, etc.

In some examples, the first interface 90 and the second interface 200 include USB interfaces or the like. The USB interface can include Micro USB, USB Type-A, USB Type C, USB-Micro etc.

Example 3

In embodiment 3, an RFID temperature reading/writing device is provided, in which a high-dielectric low-loss angle rare earth material is used as an antenna substrate to reduce the size, and the device can be integrated in a mobile terminal, and a mobile phone shell is used as a conformal antenna of an antenna component. Fig. 4 shows a mobile terminal integrated with an RFID temperature reading and writing device, and the RFID temperature reading and writing device and the mobile terminal integrated with the RFID temperature reading and writing device are described below with reference to fig. 4 and 5.

Referring to fig. 4, the mobile terminal 100 includes: the method comprises the following steps: RF (Radio Frequency) unit 101, WiFi module 102, housing 103, RFID temperature reader 104, sensor 105, display unit 106, user input unit 107, interface unit 108, memory 109, processor 110, and power supply 111. Those skilled in the art will appreciate that the configuration of the mobile terminal 100 shown in fig. 4 does not constitute a limitation of the mobile terminal, and that the mobile terminal may include more or less components than those shown, or some components may be combined, or a different arrangement of components.

The following describes each component of the mobile terminal 100 in detail with reference to fig. 4 and 5:

the rf unit 101 may be configured to receive and transmit signals during information transmission and reception or during a call, and specifically, the rf unit 101 may transmit uplink information to a base station, in addition, the downlink information sent by the base station may be received and then sent to the processor 110 of the mobile terminal for processing, the downlink information sent by the base station to the radio frequency unit 101 may be generated according to the uplink information sent by the radio frequency unit 101, or may be actively pushed to the radio frequency unit 101 after detecting that the information of the mobile terminal is updated, for example, after detecting that the geographical location of the mobile terminal is changed, the base station may send a message notification of the geographical location change to the radio unit 101 of the mobile terminal, and after receiving the message notification, the message notification may be sent to the processor 110 of the mobile terminal for processing, and the processor 110 of the mobile terminal may control the message notification to be displayed on the display panel 1061 of the mobile terminal; typically, radio frequency unit 101 includes, but is not limited to, an antenna, at least one amplifier, a transceiver, a coupler, a low noise amplifier, a duplexer, and the like. In addition, the radio frequency unit 101 may also communicate with a network and other devices through wireless communication, which may specifically include: the server may push a message notification of resource update to the mobile terminal through wireless communication to remind a user of updating the application program if the file resource corresponding to the application program in the server is updated after the mobile terminal finishes downloading the application program.

In one embodiment, the mobile terminal 100 may access an existing communication network by inserting a SIM card.

In another embodiment, the mobile terminal 100 may implement access to an existing communication network by setting an esim card (Embedded-SIM), and the adoption of the esim card may save an internal space of the mobile terminal and reduce the thickness.

It is to be understood that although fig. 4 shows the radio unit 101, it is to be understood that the radio unit 101 does not belong to the essential constitution of the mobile terminal, and may be omitted as needed within the scope not changing the essence of the invention. The mobile terminal 100 may implement a communication connection with other devices or a communication network through the wifi module 102 alone, which is not limited in the embodiments of the present invention.

WiFi belongs to short-distance wireless transmission technology, and the mobile terminal can help a user to receive and send e-mails, browse webpages, access streaming media and the like through the WiFi module 102, and provides wireless broadband internet access for the user. Although fig. 4 shows the WiFi module 102, it is understood that it does not belong to the essential constitution of the mobile terminal, and may be omitted entirely as needed within the scope not changing the essence of the invention.

In one embodiment, the mobile terminal 100 includes one or more cameras, and by turning on the cameras, capturing images, taking pictures, recording videos, and the like can be realized, and the positions of the cameras can be set as required.

The mobile terminal 100 also includes at least one sensor 105, such as a light sensor, a motion sensor, and other sensors. Specifically, the light sensor includes an ambient light sensor that can adjust the brightness of the display panel 1061 according to the brightness of ambient light, and a proximity sensor that can turn off the display panel 1061 and/or a backlight when the mobile terminal 100 is moved to the ear. As one of the motion sensors, the accelerometer sensor can detect the magnitude of acceleration in each direction (generally three axes), detect the magnitude and direction of gravity when stationary, and can be used for applications of recognizing the posture of the mobile phone (such as horizontal and vertical screen switching, related games, magnetometer posture calibration), vibration recognition related functions (such as pedometer, tapping), and the like.

The display unit 106 is used to display information input by a user or information provided to the user. The Display unit 106 may include a Display panel 1061, and the Display panel 1061 may be configured in the form of a Liquid Crystal Display (LCD), an Organic Light-Emitting Diode (OLED), or the like.

The user input unit 107 may be used to receive input numeric or character information and generate key signal inputs related to user settings and function control of the mobile terminal. Specifically, the user input unit 107 may include a touch panel 1071 and other input devices 1072. The touch panel 1071, also referred to as a touch screen, may collect a touch operation performed by a user on or near the touch panel 1071 (e.g., an operation performed by the user on or near the touch panel 1071 using a finger, a stylus, or any other suitable object or accessory), and drive a corresponding connection device according to a predetermined program. The touch panel 1071 may include two parts of a touch detection device and a touch controller. The touch detection device detects the touch direction of a user, detects a signal brought by touch operation and transmits the signal to the touch controller; the touch controller receives touch information from the touch sensing device, converts the touch information into touch point coordinates, sends the touch point coordinates to the processor 110, and can receive and execute commands sent by the processor 110. In addition, the touch panel 1071 may be implemented in various types, such as a resistive type, a capacitive type, an infrared ray, and a surface acoustic wave. In addition to the touch panel 1071, the user input unit 107 may include other input devices 1072.

Further, the touch panel 1071 may cover the display panel 1061, and when the touch panel 1071 detects a touch operation thereon or nearby, the touch panel 1071 transmits the touch operation to the processor 110 to determine the type of the touch event, and then the processor 110 provides a corresponding visual output on the display panel 1061 according to the type of the touch event. Although the touch panel 1071 and the display panel 1061 are shown in fig. 4 as two separate components to implement the input and output functions of the mobile terminal, in some examples, the touch panel 1071 and the display panel 1061 may be integrated to implement the input and output functions of the mobile terminal, and is not limited herein. For example, when receiving a message notification of an application program through the rf unit 101, the processor 110 may control the message notification to be displayed in a predetermined area of the display panel 1061, where the predetermined area corresponds to a certain area of the touch panel 1071, and perform a touch operation on the certain area of the touch panel 1071 to control the message notification displayed in the corresponding area on the display panel 1061.

The interface unit 108 serves as an interface through which at least one external device is connected to the mobile terminal 100. For example, the external device may include a wired or wireless headset port, an external power supply (or battery charger) port, a wired or wireless data port, a memory card port, a port for connecting a device having an identification module, an audio input/output (I/O) port, a video I/O port, an earphone port, and the like. The interface unit 108 may be used to receive input (e.g., data information, power, etc.) from external devices and transmit the received input to one or more elements within the mobile terminal 100 or may be used to transmit data between the mobile terminal 100 and external devices.

In one embodiment, the interface unit 108 of the mobile terminal 100 is configured as a contact, and is connected to another corresponding device through the contact to implement functions such as charging and connection. The contact can also be waterproof.

The memory 109 may be used to store software programs as well as various data. The memory 109 may mainly include a storage program area and a storage data area, wherein the storage program area may store an operating system, an application program required by at least one function (such as a sound playing function, an image playing function, etc.), and the like; the storage data area may store data (such as audio data, a phonebook, etc.) created according to the use of the cellular phone, and the like. Further, the memory 109 may include high speed random access memory, and may also include non-volatile memory, such as at least one magnetic disk storage device, flash memory device, or other volatile solid state storage device.

The processor 110 is a control center of the mobile terminal, connects various parts of the entire mobile terminal using various interfaces and lines, and performs various functions of the mobile terminal and processes data by operating or executing software programs and/or modules stored in the memory 109 and calling data stored in the memory 109, thereby performing overall monitoring of the mobile terminal. Processor 110 may include one or more processing units; preferably, the processor 110 may integrate an application processor, which mainly handles operating systems, user interfaces, application programs, etc., and a modem processor, which mainly handles wireless communications. It will be appreciated that the modem processor described above may not be integrated into the processor 110.

The mobile terminal 100 may further include a power supply 111 (e.g., a battery) for supplying power to various components, and preferably, the power supply 111 may be logically connected to the processor 110 via a power management system, so as to manage charging, discharging, and power consumption management functions via the power management system.

Referring to fig. 5, in embodiment 3 of the present application, the RFID reader/writer 104 includes a wireless energy-carrying communication subsystem 20, a demodulation subsystem 30, a conformal antenna 40, a directional coupler 50, and a digital signal processor 60. As shown in fig. 5, the power supply 111 supplies power to the RFID temperature reading/writing device 104 and other at least partial components of the mobile terminal 100.

And the wireless energy-carrying communication subsystem 20 is used for modulating the first data by using an energy carrier to obtain a first wireless radio-frequency signal so as to transmit electric energy and the first data to the RFID temperature tag through the first wireless radio-frequency signal. The structure of the wireless energy-carrying communication subsystem 20 can be referred to the description of embodiment 1 of the present application, and will not be described herein again.

And the demodulation subsystem 30 is configured to demodulate the second radio frequency signal sent by the RFID temperature tag, and demodulate the second radio frequency signal to obtain second data. The structure of the demodulation subsystem 30 can be referred to the description of embodiment 1 of the present application, and is not described herein again.

Referring to fig. 5, the conformal antenna 40 is configured to receive a second radio frequency signal and transmit a first radio frequency signal, and the conformal antenna 40 includes: an impedance matching circuit 41 and a feeding bridge 42, the impedance matching circuit 41 and the feeding bridge 42 being arranged on a dielectric substrate made of a high dielectric rare earth material, wherein the radiating element 43 of the conformal antenna is constituted by the housing 103 of the mobile terminal 100. The housing 103 of the mobile terminal 100 is provided with a high dielectric rare earth material layer at least in a partial region.

A directional coupler 50, coupled to the wireless energy-carrying communication subsystem 20 and the demodulation subsystem 30, for providing the wireless rf signal modulated by the wireless energy-carrying communication subsystem 20 to the conformal antenna 40 to transmit the wireless rf signal through the conformal antenna 40; and providing the wireless radio frequency signal sent by the RFID temperature tag to the demodulation subsystem 30, so that the demodulation subsystem 30 demodulates the wireless radio frequency signal.

And a digital signal processor 60 coupled to the wireless energy-carrying communication subsystem 20 and the demodulation subsystem 30, and coupled to the processor 110 of the mobile terminal 100, for generating first data according to an instruction of the processor 110 of the mobile terminal 100, and providing second data to the processor 110 of the mobile terminal 100, wherein the first data includes an instruction for controlling the RFID temperature tag to perform temperature detection, and the second data includes an ID of the RFID temperature tag and temperature data.

In embodiment 3 of the present application, the memory 109 of the mobile terminal 100 may store a temperature measurement control program 1091, and when the temperature measurement control program 1091 is executed by the processor 110, the temperature measurement control program controls the RFID temperature reading/writing device 104 to communicate with the RFID temperature tag, so as to read temperature data from the RFID temperature tag. The RFID temperature reader/writer 104 provides the read ID of the RFID temperature tag and the temperature data to the mobile terminal 100. The thermometry control program 1091 of the mobile terminal 100 processes the temperature data, including but not limited to displaying the temperature data, sending the temperature data to devices on the network, and the like.

The conformal antenna 40 of the embodiment of the present application is described below with reference to fig. 6.

In the present embodiment, the conformal antenna 40 enables the housing of the mobile terminal or the housing (metal) of the portable RFID temperature reading and writing device to act as the element of the antenna assembly. Meanwhile, the high-dielectric rare earth material layer is arranged on the shell, the RF proportional working wave band is solved, and the volume of the vibrator is reduced. In addition, microstrip antenna (microstrip antenna) technology is utilized, and impedance matching and feeding functions are realized by high-dielectric rare earth materials. The microstrip antenna has the advantages of small volume, light weight, simple manufacturing process, easy realization of conformal property and the like.

Referring to fig. 6, the conformal antenna 40 includes: an impedance matching circuit 41 and a feed bridge 42, wherein the housing 10 or the housing 103 (labeled as housing 10/103 in fig. 6) forms the radiating element 43 of the conformal antenna, the housing 10/103 is provided with a layer 61 of high dielectric rare earth material, and the impedance matching circuit 41 and the feed bridge 42 are provided on a dielectric substrate 62 made of high dielectric rare earth material. In the present embodiment, housing 10/103 is at least partially made of metal.

As an example, the microstrip antenna is formed by attaching a thin metal layer as a ground plate on one side of a dielectric substrate 62 made of a high dielectric rare earth material, forming a metal patch with a certain shape on the other side by a photoetching method, and feeding the patch by using a microstrip line or a coaxial probe.

As used herein, the term "high dielectric rare earth material" is a high dielectric constant rare earth material, which is mainly used in the fields of gate dielectric materials, energy storage materials, and the like. This is not described in detail in the embodiments of the present application. The high dielectric rare earth material can be selected from known rare earth materials, and the dielectric coefficient of the high dielectric rare earth material is more than or equal to 28. In the embodiment of the present application, a high dielectric constant and low loss angle rare earth material, such as an alumina substrate, with a dielectric constant of 30 and a loss angle of 0.005 is preferred; alternatively, the polystyrene substrate had a dielectric constant of 97 and a loss angle of 0.0007. In certain embodiments, the high dielectric rare earth material has a dielectric constant between 28 and 108. As another example, CaCu 3Ti 4O 12(CCTO) crystal structure ceramics of Jiangsu Jiangjia electronics company is added with trace rare earth molybdenum element to adjust dielectric and loss angle, and is used as a high dielectric rare earth material layer and a dielectric substrate.

In the embodiment of the present application, the high dielectric rare earth material layer 61 is disposed on the outer shell 10/103 to reduce the equivalent wavelength, so that the outer shell 10/103 meets the wavelength requirement, and the gain reaches 3db index. The feed bridge 42 effectively excites the radio frequency signal onto the radiating element 43 in a multi-clock polarization, e.g., circular polarization, linear polarization, etc. The impedance matching circuit 41 is used for impedance matching, and a dielectric substrate 62 made of a high dielectric rare earth material is used for obtaining 50 omega by a microstrip line principle.

It should be noted that, in this document, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises the element.

The above-mentioned serial numbers of the embodiments of the present invention are merely for description and do not represent the merits of the embodiments.

Through the above description of the embodiments, those skilled in the art will clearly understand that the method of the above embodiments can be implemented by software plus a necessary general hardware platform, and certainly can also be implemented by hardware, but in many cases, the former is a better implementation manner. Based on such understanding, the technical solutions of the present invention may be embodied in the form of a software product, which is stored in a storage medium (such as ROM/RAM, magnetic disk, optical disk) and includes instructions for enabling a terminal (such as a mobile phone, a computer, a server, an air conditioner, or a network device) to execute the method according to the embodiments of the present invention.

While the present invention has been described with reference to the embodiments shown in the drawings, the present invention is not limited to the embodiments, which are illustrative and not restrictive, and it will be apparent to those skilled in the art that various changes and modifications can be made therein without departing from the spirit and scope of the invention as defined in the appended claims.

Claims

1. A portable RFID temperature read-write device, characterized by comprising:

a housing;

the wireless energy-carrying communication subsystem is used for modulating first data by using an energy carrier to obtain a first wireless radio frequency signal so as to transmit electric energy and the first data to the RFID temperature tag through the first wireless radio frequency signal;

the demodulation subsystem is used for demodulating a second wireless radio frequency signal sent by the RFID temperature tag and demodulating the second wireless radio frequency signal to obtain second data;

a conformal antenna for receiving the second wireless radio frequency signal and transmitting the first wireless radio frequency signal, the conformal antenna comprising: the impedance matching circuit and the feed bridge are arranged on a dielectric substrate made of a high-dielectric rare earth material, wherein the dielectric constants of the high-dielectric rare earth material layer and the high-dielectric rare earth material of the dielectric substrate are more than or equal to 28;

a directional coupler coupled to the wireless energy-carrying communication subsystem and the demodulation subsystem for providing the first wireless radio frequency signal to the conformal antenna and the second wireless radio frequency signal to the demodulation subsystem; and

and the digital signal processor is coupled with the wireless energy-carrying communication subsystem and the demodulation subsystem and used for generating the first data and processing the second data, wherein the first data comprises an instruction for controlling the RFID temperature tag to detect the temperature, and the second data comprises the ID and the temperature data of the RFID temperature tag.

2. The portable RFID temperature reading and writing apparatus of claim 1, wherein the wireless energy-carrying communication subsystem comprises:

a digital modulator having an input coupled to the digital signal processor;

the input end of the carrier power proportioner is coupled with the digital modulator and used for modulating first data by using an energy carrier to obtain a first wireless radio frequency signal so as to transmit electric energy and the first data to the RFID temperature tag through the first wireless radio frequency signal; and

and the input end of the carrier energy radio frequency power amplifier is coupled with the carrier power proportioner, and the output end of the carrier energy radio frequency power amplifier is coupled with the directional coupler.

3. The portable RFID temperature reading/writing device of claim 2, wherein the wireless energy-carrying communication subsystem further comprises: the temperature measurement energy balance loop control is coupled with the directional coupler and used for generating a feedback signal according to the reflected wave received by the conformal antenna and providing the feedback signal for the carrier power proportioner; and the carrier power proportioner is used for adjusting the power of the energy carrier according to the feedback signal.

4. The portable RFID temperature reader of claim 2, wherein the digital signal processor, coupled to the carrier power proportioner, is configured to control the carrier power proportioner to turn on and off and to control the power data step size.

5. The portable RFID temperature read-write apparatus according to any one of claims 1 to 4, further comprising: and the power supply is used for supplying electric energy to the RFID temperature reading-writing device.

6. The portable RFID temperature read-write apparatus according to any one of claims 1 to 4, further comprising: a first interface configured to couple with a second interface associated with a mobile terminal to transfer data and/or power between the portable RFID temperature reading and writing device and the mobile terminal.

7. The portable RFID temperature reading and writing device according to any one of claims 1 to 4, wherein the RFID temperature tag is a passive RFID temperature tag; and/or the portable RFID temperature reading-writing device and the RFID temperature label are ultrahigh frequency RFID.

8. An RFID temperature read-write device, wherein the RFID temperature read-write device is configured to be coupled with a mobile terminal, comprising:

a conformal antenna for receiving the second wireless radio frequency signal and transmitting the first wireless radio frequency signal, the conformal antenna comprising: the antenna comprises an impedance matching circuit and a feed bridge, wherein the impedance matching circuit and the feed bridge are arranged on a dielectric substrate made of high dielectric rare earth materials, the radiation oscillator of the conformal antenna is formed by a shell of the mobile terminal, and the dielectric constant of the high dielectric rare earth materials of the dielectric substrate is more than or equal to 28;

and the digital signal processor is coupled with the wireless energy-carrying communication subsystem and the demodulation subsystem and used for generating the first data according to the instruction of the mobile terminal and providing the second data for the mobile terminal, wherein the first data comprises an instruction for controlling the RFID temperature tag to carry out temperature detection, and the second data comprises the ID and the temperature data of the RFID temperature tag.

9. The RFID reader device of claim 8, wherein the wireless energy-carrying communication subsystem comprises:

a digital modulator having an input coupled to the digital signal processor;

the input end of the carrier power proportioner is coupled with the digital modulator and used for modulating first data by using an energy carrier to obtain a first wireless radio frequency signal so as to transmit electric energy and the first data to the RFID temperature tag through the first wireless radio frequency signal;

the input end of the carrier energy radio frequency power amplifier is coupled with the carrier power proportioner, and the output end of the carrier energy radio frequency power amplifier is coupled with the directional coupler;

the temperature measurement energy balance loop control is coupled with the directional coupler and used for generating a feedback signal according to the reflected wave received by the conformal antenna and providing the feedback signal for the carrier power proportioner;

and the carrier power proportioner is used for adjusting the power of the energy carrier according to the feedback signal.

10. A mobile terminal, characterized in that it comprises an RFID temperature read-write device according to claim 8 or 9; or with a portable RFID temperature read-write device according to any of claims 1 to 7.