Portable RFID Temperature Reading and Writing Device and Mobile Terminal

Abstract

This application relates to a portable RFID temperature reading and writing device and a mobile terminal. Among them, the portable RFID temperature reading and writing device includes: a housing; a wireless energy-carrying communication subsystem for transmitting electrical energy and data to the RFID temperature tag; a demodulation subsystem for demodulating the signal sent by the RFID temperature tag; a conformal antenna, including an impedance matching circuit and a feeding bridge, disposed on a dielectric substrate made of a high-dielectric rare earth material; wherein, the housing constitutes the radiation oscillator of the conformal antenna, and a high-dielectric rare earth material layer is provided on the housing; a directional coupler for providing a radio frequency signal to the conformal antenna and providing a radio frequency signal to the demodulation subsystem; a digital signal processor for generating an instruction to control the RFID temperature tag to perform temperature detection and processing the ID and temperature data of the RFID temperature tag. Thus, a portable RFID temperature reading and writing device is realized.

Description

Technical Field

[0001] This application relates to the technical field of Radio Frequency Identification (RFID) temperature detection, and particularly to a portable RFID temperature reading and writing device and a mobile terminal. Background Art

[0002] The existing RFID system consists of three parts: RFID tags, readers, and data access to cloud devices. For example, in the ETC automatic toll collection field, the RFID is in the form of a card, the reader is suspended, and the data access to the cloud uses Ethernet; in the clothing industry, the RFID is in the form of a trademark, the suspended channel reader is used for batch inventory, the handheld POST machine-like device is used for inspection, and the access to the cloud uses modules such as Ethernet, 4G, and GPRS.

[0003] The inventors of this application found that: the independent intelligent CPU hardware of the reader results in high costs. In addition, the antenna size of the reader is too large and inconvenient to carry. Finally, RFID only has the function of obtaining the identity ID. Summary of the Invention

[0004] In order to solve the above technical problems or at least partially solve the above technical problems, this application provides a portable RFID temperature reading and writing device and a mobile terminal.

[0005] In a first aspect, the present application provides a portable RFID temperature reading and writing device, including: a housing; a Simultaneous Wireless Information and Power Transfer (SWIPT) subsystem for modulating first data using an energy carrier to obtain a first radio frequency signal, so as to transmit electrical energy and the first data to an RFID temperature tag through the first radio frequency signal; a demodulation subsystem for demodulating a second radio frequency signal sent by the RFID temperature tag and demodulating second data from the second radio frequency signal; a conformal antenna for receiving the second radio frequency signal and transmitting the first radio frequency signal, the conformal antenna including: an impedance matching circuit and a feeding bridge, wherein the housing forms a radiation oscillator of the conformal antenna, a high-dielectric rare-earth material layer is arranged on the housing, and the impedance matching circuit and the feeding bridge are arranged on a dielectric substrate made of the high-dielectric rare-earth material, wherein the dielectric constant of the high-dielectric rare-earth material layer and the high-dielectric rare-earth material of the dielectric substrate is greater than or equal to 28; a directional coupler coupled to the SWIPT subsystem and the demodulation subsystem for providing the first radio frequency signal to the conformal antenna and providing the second radio frequency signal to the demodulation subsystem; and a Digital Signal Processor (DSP) coupled to the SWIPT subsystem and the demodulation subsystem for generating the first data and processing the second data, wherein the first data includes an instruction for controlling the RFID temperature tag to perform temperature detection, and the second data includes the identification (ID) and temperature data of the RFID temperature tag.

[0006] In some instances, the SWIPT subsystem includes: a digital modulator, an input end of which is coupled to the DSP; a carrier power proportioner, an input end of which is coupled to the digital modulator, for modulating the first data using the energy carrier to obtain the first radio frequency signal, so as to transmit electrical energy and the first data to the RFID temperature tag through the first radio frequency signal; and a carrier energy radio frequency power amplifier, an input end of which is coupled to the carrier power proportioner and an output end of which is coupled to the directional coupler.

[0007] In some instances, the SWIPT subsystem further includes: a temperature measurement energy balance loop controller coupled to the directional coupler for generating a feedback signal according to a reflected wave received by the conformal antenna and providing the feedback signal to the carrier power proportioner; wherein the carrier power proportioner is configured to adjust the power of the energy carrier according to the feedback signal.

[0008] In some instances, the DSP is coupled to the carrier power proportioner for controlling the turning on and off of the carrier power proportioner and controlling the power data size step.

[0009] In some instances, it further includes: a power supply for supplying electrical energy to the RFID temperature reading and writing device.

[0010] In some instances, it further includes: a first interface configured to be coupled to a second interface associated with a mobile terminal to transmit data and / or electrical energy between the portable RFID temperature reading and writing device and the mobile terminal.

[0011] In some instances, the RFID temperature tag is a passive RFID temperature tag; and / or the portable RFID temperature reading and writing device and the RFID temperature tag are ultra-high frequency RFID.

[0012] In some embodiments, the dielectric constant of the high-dielectric rare earth material is between 28 and 108.

[0013] In a second aspect, the present application provides an RFID temperature reading and writing device configured to be coupled to a mobile terminal, including: a wireless energy-carrying communication subsystem for modulating first data using an energy carrier to obtain a first radio frequency signal to transmit electrical energy and the first data to the RFID temperature tag through the first radio frequency signal; a demodulation subsystem for demodulating a second radio frequency signal sent by the RFID temperature tag to demodulate second data from the second radio frequency signal; a conformal antenna for receiving the second radio frequency signal and sending the first radio frequency signal, the conformal antenna including: an impedance matching circuit and a feeding bridge, the impedance matching circuit and the feeding bridge are arranged on a dielectric substrate made of a high-dielectric rare earth material, wherein the outer shell of the mobile terminal constitutes the radiation oscillator of the conformal antenna, wherein the dielectric constant of the high-dielectric rare earth material of the dielectric substrate is greater than or equal to 28; a directional coupler coupled to the wireless energy-carrying communication subsystem and the demodulation subsystem for providing the first radio frequency signal to the conformal antenna and providing the second radio frequency signal to the demodulation subsystem; and a digital signal processor coupled to the wireless energy-carrying communication subsystem and the demodulation subsystem for generating the first data according to the instructions of the mobile terminal and providing the second data to the mobile terminal, wherein the first data includes instructions for controlling the RFID temperature tag to perform temperature detection, and the second data includes the ID and temperature data of the RFID temperature tag.

[0014] In some instances, a wireless energy-harvesting communication subsystem includes: a digital modulator, whose input end is coupled to a digital signal processor; a carrier power proportioner, whose input end is coupled to the digital modulator and is used to modulate first data using an energy carrier to obtain a first radio frequency signal, so as to transmit electrical energy and the first data to an RFID temperature tag through the first radio frequency signal; a carrier energy radio frequency power amplifier, whose input end is coupled to the carrier power proportioner and whose output end is coupled to a directional coupler; a temperature-measuring energy balance loop controller, which is coupled to the directional coupler and is used to generate a feedback signal according to the reflected wave received by a conformal antenna and provide the feedback signal to the carrier power proportioner; wherein, the carrier power proportioner is used to adjust the power of the energy carrier according to the feedback signal.

[0015] In some embodiments, the dielectric constant of the high-dielectric rare-earth material is between 28 and 108.

[0016] In a third aspect, the present application provides a mobile terminal, including any of the above RFID temperature reading and writing devices.

[0017] In a fourth aspect, the present application provides a mobile terminal, having any of the above portable RFID temperature reading and writing devices.

[0018] The above technical solutions provided by the embodiments of the present application have the following advantages compared with the prior art: The solution provided by the embodiments of the present application, by using the conformal antenna of the high-dielectric rare-earth material, reduces the volume of the antenna oscillator, reduces the volume of impedance matching and feeding, realizes a portable RFID temperature reading and writing device, and uses a wireless energy-harvesting communication system to provide electrical energy for the RFID temperature tag, facilitating the popularization and use of the RFID temperature reading and writing device. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The accompanying drawings here are incorporated into the specification and constitute a part of this specification, showing embodiments consistent with the present invention and used together with the specification to explain the principles of the present invention.

[0020] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, for those of ordinary skill in the art, without creative efforts, other drawings can also be obtained according to these drawings.

[0021] Figure 1 It is a schematic diagram of an implementation manner of an RFID temperature detection system provided by an embodiment of the present application;

[0022] Figure 2 It is a hardware schematic diagram of an implementation manner of a portable RFID temperature reading and writing device provided by Embodiment 1 of the present application;

[0023] Figure 3 Hardware schematic diagram of an implementation of the temperature detection system using the portable RFID temperature reading and writing device connected to the mobile terminal provided in Embodiment 2 of the present application;

[0024] Figure 4 Hardware schematic diagram of an implementation of the mobile terminal provided in Embodiment 3 of the present application;

[0025] Figure 5 Partial hardware schematic diagram of the mobile terminal provided in Embodiment 3 of the present application;

[0026] Figure 6 Schematic diagram of an implementation of the conformal antenna in Embodiments 1 to 3 of the present application;

[0027] Figure 7 Schematic diagram of an output waveform of the digital signal processor in the embodiment of the present application;

[0028] Figure 8 In the embodiment of the present application, Figure 7 Schematic diagram of the output waveform after signal modulation by the digital modulator in;

[0029] Figure 9 In the embodiment of the present application, for the carrier power proportioner Figure 8 Schematic diagram of the output waveform after signal modulation in. Detailed implementation manners

[0030] It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0031] In the subsequent description, suffixes such as "module", "component", or "unit" used to represent elements are only for the convenience of describing the present invention, and they have no specific meaning in themselves. Therefore, "module", "component", or "unit" can be used interchangeably.

[0032] In the embodiment of the present application, please refer to Figure 1 As shown, the RFID temperature detection system 300 includes an RFID temperature reading and 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 can be low frequency (LF), high frequency (HF), or ultra-high frequency (UHF), etc. For specific references, please refer to relevant standards and will not be elaborated here. Generally, when using a PCB circuit board, the higher the frequency band, the more complex and larger the impedance matching circuit of the RFID antenna.

[0033] The RFID temperature tag 3 is used to detect the temperature of the object to be measured and uniquely identify the object to be measured through the ID of the RFID. The object to be measured includes objects, organisms, etc. The RFID temperature tag 3 can be placed on the surface of the object to be measured or implanted inside the object to be measured. In some instances, the RFID temperature tag 3 is a passive RFID temperature tag. The RFID temperature reading and writing device 1 is used to provide electrical energy to the RFID temperature tag 3 in a radio frequency manner, control the RFID temperature tag 3 to perform temperature detection, and read the ID and temperature data of the RFID temperature tag 3.

[0034] The embodiments of the present application do not limit the RFID temperature tag 3, as long as it can receive electrical energy and data transmitted by the RFID temperature reading and writing device 1 wirelessly, and it includes a wireless energy-harvesting communication subsystem adapted to the RFID temperature reading and writing device 1. Existing RFID temperature tags can be used. For example, the RFID temperature tag may include: an RF antenna etched on an FR4 PCB circuit board, a temperature sensor, and an RFID chip.

[0035] In some instances, a portable RFID temperature reading and writing device is provided. In other embodiments, an RFID temperature reading and writing system is formed by connecting to a mobile terminal such as a smart phone. In still other embodiments, an RFID temperature reading and writing device is built into the mobile terminal to enable the mobile terminal to perform RFID temperature reading and writing.

[0036] Some embodiment modes of the RFID temperature reading and writing device of the embodiments of the present application will be described below.

[0037] Embodiment 1

[0038] In Embodiment 1, a portable RFID temperature reading and writing device is provided. A high-dielectric and low-loss-angle rare earth material is used as the antenna substrate to reduce the volume, and the outer shell is used as the conformal antenna of the antenna component, making the RFID temperature reading and writing convenient to carry. The portable RFID temperature reading and writing device of the embodiment will be described below with reference to the accompanying drawings.

[0039] Please refer to Figure 2 , which is a hardware schematic diagram of an embodiment of the portable RFID temperature reading and writing device provided by Embodiment 1 of the present application. As Figure 2 shown, the portable RFID temperature reading and writing device 1 includes: an outer shell 10, a wireless energy-harvesting communication subsystem 20, a demodulation subsystem 30, a conformal antenna 40, a directional coupler 50, a digital signal processor 60, and a power supply 70. Those skilled in the art can understand that Figure 1 the portable RFID temperature reading and writing device shown in

[0040] A power supply 70 is used to supply electrical energy to the wireless energy-harvesting communication subsystem 20, the demodulation subsystem 30, the conformal antenna 40, the directional coupler 50, and the digital signal processor 60. In some instances, the power supply 70 includes a battery and a power supply circuit (not shown in the figure), and the battery is coupled to the power supply circuit. The power supply circuit includes 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 part of the portable RFID temperature reading and writing device 1. Thus, isolated power supply for the digital circuit and the analog circuit is achieved.

[0041] The wireless energy-harvesting communication subsystem 20 is used to modulate the first data using an energy carrier to obtain a first radio frequency signal, so as to transmit electrical energy and the first data to the RFID temperature tag through the first radio frequency signal. During some periods, the first radio frequency signal transmits electrical energy, thereby transmitting electrical energy to the RFID temperature tag in the form of a radio frequency signal. During other periods, the first radio frequency signal transmits electrical energy and data, thereby transmitting data and electrical energy to the RFID temperature tag in the form of a radio frequency signal.

[0042] The demodulation subsystem 30 is used to demodulate the second radio frequency signal sent by the RFID temperature tag and demodulate the second data from the second radio frequency signal. In some instances, the demodulation subsystem 30 includes: a low-noise receiving and amplifying unit 31 for amplifying the weak radio frequency signal received by the conformal antenna 40; a carrier suppression unit 32 for eliminating the carrier leakage caused by the limit of the transceiver isolation device and reducing interference; and a mixing and demodulating 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.

[0043] The conformal antenna 40 is used to receive the second radio frequency signal and transmit the first radio frequency signal. The conformal antenna 40 includes an impedance matching circuit 41 and a feeding bridge 42. Among them, the radiation oscillator 43 of the conformal antenna is constituted by the housing 10, a high-dielectric rare earth material layer is provided on the housing 10, and the impedance matching circuit 41 and the feeding bridge 42 are provided on a dielectric substrate made of a high-dielectric rare earth material.

[0044] The directional coupler 50 is coupled to the wireless energy-harvesting communication subsystem 20 and the demodulation subsystem 30, and is used to provide the first radio frequency signal to the conformal antenna 40 to transmit the first radio frequency signal through the conformal antenna 40; and provide the second radio frequency signal to the demodulation subsystem 30 to perform demodulation processing on the second radio frequency signal by the demodulation subsystem 30.

[0045] A digital signal processor 60, coupled to the wireless energy-harvesting communication subsystem 20 and the demodulation subsystem 30, is configured to generate first data and process second data. The first data includes instructions for controlling the RFID temperature tag to perform temperature detection, and the second data includes the ID and temperature data of the RFID temperature tag. 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 converting digital signals to analog signals, respectively.

[0046] Please refer to Figure 2 , the portable RFID temperature reader / writer device 1 further includes a voltage-controlled phase-locked local oscillator for generating a high-precision programmable carrier signal.

[0047] In some instances, please refer to Figure 2 , the wireless energy-harvesting communication subsystem 20 includes: a digital modulator 21, the input end of which is coupled to the digital signal processor 60; a carrier power proportioner 22, the input end of which is coupled to the digital modulator 21, for modulating the first data using an energy carrier to obtain a first radio frequency signal, so as to transmit electrical energy and the first data to the RFID temperature tag through the first radio frequency signal; and a carrier energy radio frequency power amplifier 23, the input end of which is coupled to the carrier power proportioner 22 and the output end of which is coupled to the directional coupler 50.

[0048] In the embodiments 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.

[0049] As an example, Figure 7 shows an output waveform of the digital signal processor 60 in the embodiments of the present application, Figure 8 shows that in the embodiments of the present application, after the digital modulator 21 modulates the signal in Figure 7 , the output waveform, Figure 9 shows that in the embodiments of the present application, after the carrier power proportioner 22 modulates the signal in Figure 8 , the output waveform.

[0050] The change in the distance between the RFID temperature tag and the portable RFID temperature reader / writer device 1 affects the transmission of electrical energy, and further affects the stability of the operating voltage of the RFID temperature tag. In some instances, please refer to Figure 2 , the wireless energy-harvesting communication subsystem 20 further includes: a temperature-measuring energy balance loop controller 24, coupled to the directional coupler 50, 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. The carrier power proportioner 22 is configured to adjust the power of the energy carrier according to the feedback signal, so as to perform dynamic compensation on the electrical energy.

[0051] In some instances, please refer toFigure 2 , a digital signal processor 60, coupled to the carrier power proportioner 22, is used to control the turn-on and turn-off of the carrier power proportioner 22 and control the power data size step.

[0052] In some instances, refer to Figure 2 , the portable RFID temperature reading and writing device 1 may include a memory 80 for storing program instructions and data. The program instructions may include, but are not limited to, communication protocols, etc. It should be understood that although Figure 2 the memory 80 is juxtaposed with the digital signal processor 60 in , this does not limit the relationship between the two. In this embodiment, the memory 80 may be a memory inside the digital signal processor 60, and this embodiment does not make a limitation on this.

[0053] In some instances, the portable RFID temperature reading and writing device 1 may further include a wireless communication module such as a WiFi module for communicating with devices on the network to send data to devices on the network and receive data sent by devices on the network. For example, the temperature data detected by the read RFID temperature tag; a display unit for displaying a graphical user interface, and the graphical user interface may display the temperature data detected by the read RFID temperature tag; an audio output unit for outputting a sound signal; a user input unit including one or more physical buttons, etc., for inputting control commands. An interface unit includes a Universal Serial Bus (USB) interface, etc., for transmitting electric energy and / or data. The USB interface may include Micro USB, USB Type-A, USB Type C, USB-micro, etc.

[0054] Embodiment 2

[0055] In Embodiment 2, a portable RFID temperature reading and writing device is provided. A high-dielectric and low-loss-angle rare earth material is used as the antenna substrate to reduce the volume, and it is coupled to a mobile terminal through an interface to transmit data and / or electric energy between the portable RFID temperature reading and writing device and the mobile terminal. The following combines Figure 2 and Figure 3 to describe this embodiment.

[0056] In Embodiment 2 of the present application, the portable RFID temperature reading and 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-harvesting communication subsystem 20, a demodulation subsystem 30, a conformal antenna 40, a directional coupler 50, and a digital signal processor 60 as shown in Figure 2 . Please refer to Figure 3, the portable RFID temperature reading and writing device 1 further includes: a first interface 90, configured to be coupled to a second interface 200 associated with the mobile terminal 2 to transmit data and electrical energy between the portable RFID temperature reading and writing device 1 and the mobile terminal 2.

[0057] In some instances, the portable RFID temperature reading and writing device 1 does not have a battery, and electrical energy 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.

[0058] In Embodiment 2 of the present application, the mobile terminal 2 includes, but is not limited to, portable electronic devices such as smart phones. The mobile terminal 2 may include components such as an RF (Radio Frequency) 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.

[0059] In Embodiment 2 of the present application, the memory of the mobile terminal 2 stores a temperature measurement control program (not shown in the figure). When the temperature measurement control program is executed by the processor of the mobile terminal 2, it controls the portable RFID temperature reading and writing device 1 to communicate with the RFID temperature tag, so as to read temperature data from the RFID temperature tag. The portable RFID temperature reading and writing device 1 provides the ID and temperature data of the read RFID temperature tag to the mobile terminal 2. The temperature measurement 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.

[0060] In some instances, the first interface 90 and the second interface 200 include a USB interface, etc. The USB interface may include MicroUSB, USB Type-A, USB Type C, USB-micro, etc.

[0061] Embodiment 3

[0062] In Embodiment 3 of the present application, an RFID temperature reading and writing device is provided. A high-dielectric and low-loss-angle rare earth material is used as the antenna substrate to reduce the volume, and it can be integrated into the mobile terminal, using the mobile phone shell as a conformal antenna of the antenna component. As Figure 4 shows a mobile terminal integrated with an RFID temperature reading and writing device. The following combines Figure 4 and Figure 5 to describe the RFID temperature reading and writing device and the mobile terminal integrated with the RFID temperature reading and writing device.

[0063] Please refer to Figure 4, the mobile terminal 100 includes components such as an RF (Radio Frequency) unit 101, a WiFi module 102, a housing 103, an RFID temperature reading and writing device 104, a sensor 105, a display unit 106, a user input unit 107, an interface unit 108, a memory 109, a processor 110, and a power supply 111. Those skilled in the art can understand that Figure 4 the structure of the mobile terminal 100 shown in

[0064] does not limit the mobile terminal. The mobile terminal may include more or fewer components than shown in the figure, or combine certain components, or have different component arrangements. Figure 4 and Figure 5 Specific introductions to each component of the mobile terminal 100 are as follows:

[0065] The RF unit 101 can be used for receiving and sending signals during information reception or call processes. Specifically, the RF unit 101 can send uplink information to the base station. Additionally, after receiving the downlink information sent by the base station, it can send it to the processor 110 of the mobile terminal for processing. The downlink information sent by the base station to the RF unit 101 can be generated based on the uplink information sent by the RF unit 101, or can be actively pushed to the RF unit 101 after detecting the information update of the mobile terminal. For example, after detecting a change in the geographical location where the mobile terminal is located, the base station can send a message notification of the geographical location change to the RF unit 101 of the mobile terminal. After receiving this message notification, the RF unit 101 can send this message notification to the processor 110 of the mobile terminal, and the processor 110 of the mobile terminal can control this message notification to be displayed on the display panel 1061 of the mobile terminal; Generally, the RF unit 101 includes but is not limited to an antenna, at least one amplifier, a transceiver, a coupler, a low-noise amplifier, a duplexer, etc. In addition, the RF unit 101 can also communicate with the network and other devices through wireless communication. Specifically, it can include: communicating with a server in the network system through wireless communication. For example, the mobile terminal can download file resources from the server through wireless communication, such as downloading an application program from the server. After the mobile terminal finishes downloading a certain application program, if the file resources corresponding to this application program in the server are updated, the server can push a message notification of resource update to the mobile terminal through wireless communication to remind the user to update this application program.

[0066] In one implementation, the mobile terminal 100 can access the existing communication network by inserting a SIM card.

[0067] In another embodiment, the mobile terminal 100 can access the existing communication network by setting an eSIM (Embedded-SIM). The eSIM method can save the internal space of the mobile terminal and reduce its thickness.

[0068] It can be understood that although Figure 4 the radio frequency unit 101 is shown, it can be understood that the radio frequency unit 101 is not an essential component of the mobile terminal and can be omitted entirely within the scope of not changing the essence of the invention according to needs. The mobile terminal 100 can achieve communication connection with other devices or communication networks solely through the WiFi module 102. The embodiments of the present invention are not limited thereto.

[0069] WiFi belongs to short-distance wireless transmission technology. The mobile terminal can help users send and receive emails, browse the web, and access streaming media through the WiFi module 102, providing users with wireless broadband Internet access. Although Figure 4 the WiFi module 102 is shown, it can be understood that it is not an essential component of the mobile terminal and can be omitted entirely within the scope of not changing the essence of the invention according to needs.

[0070] In one embodiment, the mobile terminal 100 includes one or more cameras. By turning on the cameras, image capture can be achieved to realize functions such as taking pictures and recording videos. The positions of the cameras can be set according to needs.

[0071] The mobile terminal 100 further includes at least one type of sensor 105, such as a light sensor, a motion sensor, and other sensors. Specifically, the light sensor includes an ambient light sensor and a proximity sensor. Among them, the ambient light sensor can adjust the brightness of the display panel 1061 according to the brightness of the ambient light, and the proximity sensor can turn off the display panel 1061 and / or the backlight when the mobile terminal 100 is moved to the ear. As a type of motion sensor, the accelerometer sensor can detect the magnitude of acceleration in various directions (generally three axes), and can detect the magnitude and direction of gravity when stationary, and can be used for applications that identify the posture of the mobile phone (such as horizontal and vertical screen switching, related games, magnetometer posture calibration), vibration recognition related functions (such as pedometers, taps), etc.

[0072] The display unit 106 is used to display information input by the user or information provided to the user. The display unit 106 may include a display panel 1061, and the display panel 1061 can be configured in the form of a liquid crystal display (LCD), an organic light-emitting diode (OLED), etc.

[0073] The user input unit 107 can be used to receive input numerical 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 known as a touch screen, can collect touch operations of a user thereon or nearby (such as operations of the user using any suitable object or accessory such as a finger or a stylus on or near the touch panel 1071), and drive corresponding connection devices according to a preset program. The touch panel 1071 may include two parts: a touch detection device and a touch controller. Among them, the touch detection device detects the touch orientation of the user, detects signals brought by the touch operation, and transmits the signals to the touch controller; the touch controller receives touch information from the touch detection device, converts it into contact coordinates, and then sends it to the processor 110, and can receive and execute commands sent by the processor 110. In addition, the touch panel 1071 can be implemented in multiple types such as resistive, capacitive, infrared, and surface acoustic wave. In addition to the touch panel 1071, the user input unit 107 may further include other input devices 1072.

[0074] Furthermore, the touch panel 1071 may cover the display panel 1061. After the touch panel 1071 detects a touch operation thereon or nearby, it transmits the operation to the processor 110 to determine the type of touch event. Subsequently, the processor 110 provides corresponding visual output on the display panel 1061 according to the type of touch event. Although in Figure 4 the touch panel 1071 and the display panel 1061 are implemented as two independent components to realize the input and output functions of the mobile terminal, in some instances, the touch panel 1071 and the display panel 1061 can be integrated to realize the input and output functions of the mobile terminal, and the specific implementation here is not limited. For example, when a message notification of a certain application program is received through the radio frequency unit 101, the processor 110 can control to display the message notification in a certain preset area of the display panel 1061. The preset area corresponds to a certain area of the touch panel 1071. By performing a touch operation on a certain area of the touch panel 1071, the message notification displayed in the corresponding area on the display panel 1061 can be controlled.

[0075] The interface unit 108 serves as an interface through which at least one external device can be 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 with an identification module, an audio input / output (I / O) port, a video I / O port, a headset port, and so on. The interface unit 108 can be used to receive inputs from the external device (such as data information, power, etc.) and transfer the received inputs to one or more components within the mobile terminal 100 or can be used to transfer data between the mobile terminal 100 and the external device.

[0076] In one embodiment, the interface unit 108 of the mobile terminal 100 adopts a contact structure and is connected to corresponding other devices through the contacts to implement functions such as charging and connection. Using contacts can also provide waterproofing.

[0077] The memory 109 can be used to store software programs and various data. The memory 109 mainly includes a program storage area and a data storage area. Among them, the program storage area can store an operating system, application programs required for at least one function (such as a sound playback function, an image playback function, etc.); the data storage area can store data created according to the use of the mobile phone (such as audio data, a phone book, etc.). In addition, the memory 109 can include high-speed random access memory and can also include non-volatile memory, such as at least one magnetic disk storage device, a flash memory device, or other non-volatile solid-state storage devices.

[0078] The processor 110 is the control center of the mobile terminal, connecting various parts of the entire mobile terminal through various interfaces and lines. By running or executing software programs and / or modules stored in the memory 109 and calling data stored in the memory 109, it executes various functions of the mobile terminal and processes data, thereby monitoring the mobile terminal as a whole. The processor 110 can include one or more processing units; preferably, the processor 110 can integrate an application processor and a modem processor. Among them, the application processor mainly processes the operating system, user interface, and application programs, etc., and the modem processor mainly processes wireless communication. It can be understood that the above-mentioned modem processor may not be integrated into the processor 110.

[0079] The mobile terminal 100 may also include a power supply 111 (such as a battery) for supplying power to each component. Preferably, the power supply 111 can be logically connected to the processor 110 through a power management system, thereby implementing functions such as management of charging, discharging, and power consumption management through the power management system.

[0080] Please refer to Figure 5, in Embodiment 3 of the present application, the RFID temperature reading and writing device 104 includes a wireless energy-harvesting communication subsystem 20, a demodulation subsystem 30, a conformal antenna 40, a directional coupler 50, and a digital signal processor 60. As Figure 5 shown, the power supply 111 supplies power to the RFID temperature reading and writing device 104 and at least some other components of the mobile terminal 100.

[0081] The wireless energy-harvesting communication subsystem 20 is configured to modulate first data using an energy carrier to obtain a first radio frequency signal, so as to transmit electrical energy and the first data to the RFID temperature tag through the first radio frequency signal. The structure of the wireless energy-harvesting communication subsystem 20 can refer to the description of Embodiment 1 of the present application, and will not be elaborated here.

[0082] The demodulation subsystem 30 is configured to demodulate a second radio frequency signal sent by the RFID temperature tag, and demodulate second data from the second radio frequency signal. The structure of the demodulation subsystem 30 can refer to the description of Embodiment 1 of the present application, and will not be elaborated here.

[0083] Please refer to Figure 5 , the conformal antenna 40 is configured to receive the second radio frequency signal and transmit the first radio frequency signal. 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 are arranged on a dielectric substrate made of a high-dielectric rare earth material. Among them, the housing 103 of the mobile terminal 100 constitutes a radiation oscillator 43 of the conformal antenna. At least some areas on the housing 103 of the mobile terminal 100 are provided with a high-dielectric rare earth material layer.

[0084] The directional coupler 50 is coupled to the wireless energy-harvesting communication subsystem 20 and the demodulation subsystem 30, and is configured to provide the radio frequency signal modulated by the wireless energy-harvesting communication subsystem 20 to the conformal antenna 40, so as to transmit the radio frequency signal through the conformal antenna 40; and, provide the radio frequency signal sent by the RFID temperature tag to the demodulation subsystem 30 for the demodulation subsystem 30 to perform demodulation processing on the radio frequency signal.

[0085] The digital signal processor 60 is coupled to the wireless energy-harvesting communication subsystem 20 and the demodulation subsystem 30, and is also coupled to the processor 110 of the mobile terminal 100. It is configured to generate first data according to the instructions of the processor 110 of the mobile terminal 100, and provide second data to the processor 110 of the mobile terminal 100, where the first data includes instructions for controlling the RFID temperature tag to perform temperature detection, and the second data includes the ID and temperature data of the RFID temperature tag.

[0086] In Embodiment 3 of the present application, the memory 109 of the mobile terminal 100 may store a temperature measurement control program 1091. When the temperature measurement control program 1091 is executed by the processor 110, it controls the RFID temperature reading and writing device 104 to communicate with the RFID temperature tag, so as to read temperature data from the RFID temperature tag. The RFID temperature reading and writing device 104 provides the ID and temperature data of the read RFID temperature tag to the mobile terminal 100. The temperature measurement 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, etc.

[0087] The following will describe the conformal antenna 40 of the embodiments of the present application in conjunction with Figure 6 the following.

[0088] In the embodiments of the present application, 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 be used as the radiator of the antenna component. At the same time, a high-dielectric rare earth material layer is provided on the housing to solve the RF ratio working band and reduce the volume of the radiator. In addition, microstrip antenna technology is used, and impedance matching and feeding functions are realized by the high-dielectric rare earth material. The microstrip antenna has the advantages of small volume, light weight, simple manufacturing process, and easy conformal implementation.

[0089] Please refer to Figure 6 , the conformal antenna 40 includes: an impedance matching circuit 41 and a feeding bridge 42. Among them, the housing 10 or the housing 103 ( Figure 6 marked as the housing 10 / 103 in

[0090] constitutes the radiation radiator 43 of the conformal antenna. A high-dielectric rare earth material layer 61 is provided on the housing 10 / 103. The impedance matching circuit 41 and the feeding bridge 42 are arranged on a dielectric substrate 62 made of a high-dielectric rare earth material. In the embodiments of the present application, the housing 10 / 103 is at least partially made of metal.

[0091] As used herein, the term "high-dielectric rare-earth material" refers to a rare-earth material with a high dielectric constant. High-dielectric-constant materials are mainly applied in fields such as gate dielectric materials and energy storage materials. The embodiments of this application will not elaborate on this. High-dielectric rare-earth materials can be selected from well-known rare-earth materials, and the dielectric constant of the high-dielectric rare-earth materials is greater than or equal to 28. In the embodiments of this application, rare-earth materials with high dielectric constants and low loss angles are preferably used. For example, an alumina substrate with a dielectric constant of 30 and a loss angle of 0.005; or a polyvinyl benzene substrate with a dielectric constant of 97 and a loss angle of 0.0007. In some embodiments, the dielectric constant of the high-dielectric rare-earth material is between 28 and 108. For another example, the CaCu^3Ti^4O^12 (CCTO) crystal structure ceramic of Jiangsu Jiangjia Electronic Company is added with a trace amount of rare-earth molybdenum element to adjust the dielectric and loss angle, and is used as the high-dielectric rare-earth material layer and the dielectric substrate.

[0092] In the embodiments of this application, by setting a high-dielectric rare-earth material layer 61 on the outer shell 10 / 103, the equivalent wavelength is reduced, so that the outer shell 10 / 103 meets the wavelength requirements, and at the same time, the gain reaches the 3 dB index. The feeding bridge 42 effectively excites the radio frequency signal to the radiation oscillator 43, and can be in multiple polarization modes, such as circular polarization, linear polarization, etc. The impedance matching circuit 41 is used for impedance matching. A dielectric substrate 62 made of a high-dielectric rare-earth material is used to obtain 50 Ω through the microstrip line principle.

[0093] It should be noted that in this article, the term "including", "comprising" or any other variant thereof is intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements not only includes those elements, but also includes other elements not expressly listed, or also includes elements inherent to such process, method, article or device. Without further limitations, an element defined by the statement "including one..." does not exclude the existence of another identical element in the process, method, article or device including the element.

[0094] The serial numbers of the above embodiments of the present invention are only for description and do not represent the advantages or disadvantages of the embodiments.

[0095] Through the description of the above embodiments, those skilled in the art can clearly understand that the above embodiment methods can be implemented by means of software plus a necessary general hardware platform. Of course, they can also be implemented by hardware, but in many cases the former is a better implementation method. Based on such an understanding, the technical solution of the present invention, in essence, or the part that contributes to the prior art, can be embodied in the form of a software product. The computer software product is stored in a storage medium (such as ROM / RAM, magnetic disk, optical disk), and includes several instructions for causing a terminal (which can be a mobile phone, computer, server, air conditioner, or network device, etc.) to execute the methods described in the various embodiments of the present invention.

[0096] The embodiments of the present invention have been described above in conjunction with the accompanying drawings. However, the present invention is not limited to the above specific embodiments. The above specific embodiments are merely illustrative rather than restrictive. Under the inspiration of the present invention, those of ordinary skill in the art can also make many forms without departing from the gist of the present invention and the scope protected by the claims. All of these fall within the protection scope of the present invention.

Claims

1. A portable RFID temperature reading and writing device, characterized in that, Comprising: A housing; A wireless energy-harvesting communication subsystem for modulating first data using an energy carrier to obtain a first radio frequency signal, so as to transmit electrical energy and the first data to an RFID temperature tag via the first radio frequency signal; A demodulation subsystem for demodulating a second radio frequency signal sent by the RFID temperature tag and demodulating second data from the second radio frequency signal; A conformal antenna for receiving the second radio frequency signal and transmitting the first radio frequency signal, the conformal antenna comprising: an impedance matching circuit and a feeding bridge, wherein the housing forms a radiation oscillator of the conformal antenna, a high-dielectric-constant rare earth material layer is provided on the housing, and the impedance matching circuit and the feeding bridge are arranged on a dielectric substrate made of a high-dielectric-constant rare earth material, wherein the dielectric constant of the high-dielectric-constant rare earth material layer and the high-dielectric-constant rare earth material of the dielectric substrate is greater than or equal to 28; A directional coupler coupled to the wireless energy-harvesting communication subsystem and the demodulation subsystem for providing the first radio frequency signal to the conformal antenna and providing the second radio frequency signal to the demodulation subsystem; and A digital signal processor coupled to the wireless energy-harvesting communication subsystem and the demodulation subsystem for generating the first data and processing the second data, wherein the first data includes an instruction for controlling the RFID temperature tag to perform temperature detection, and the second data includes the ID and temperature data of the RFID temperature tag; A power supply for supplying electrical energy to the RFID temperature reading and writing device; the power supply includes a battery and a power supply circuit, and the battery is coupled to the power supply circuit.

2. The portable RFID temperature reading and writing device according to claim 1, wherein The wireless energy-harvesting communication subsystem includes: A digital modulator, an input end of which is coupled to the digital signal processor; A carrier power proportioner, an input end of which is coupled to the digital modulator, for modulating first data using an energy carrier to obtain a first radio frequency signal, so as to transmit electrical energy and the first data to an RFID temperature tag via the first radio frequency signal; and A carrier energy radio frequency power amplifier, an input end of which is coupled to the carrier power proportioner and an output end of which is coupled to the directional coupler.

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

4. The portable RFID temperature reading and writing device according to claim 2, wherein The digital signal processor is coupled to the carrier power proportioner for controlling the turning on and off of the carrier power proportioner and controlling the power data size step.

5. The portable RFID temperature reading and writing device according to any one of claims 1 to 4, characterized in that Further comprising: A first interface configured to be coupled to a second interface associated with a mobile terminal to transmit data and / or electrical energy between the portable RFID temperature reading and writing device and the mobile terminal.

6. The portable RFID temperature reading and writing device according to any one of claims 1 to 4, characterized in that The RFID temperature tag is a passive RFID temperature tag; and / or the portable RFID temperature reading and writing device and the RFID temperature tag are ultra-high frequency RFID.

7. An RFID temperature reading and writing device, characterized in that, The RFID temperature reading and writing device is configured to be coupled with a mobile terminal and includes: A wireless energy-harvesting communication subsystem for modulating first data using an energy carrier to obtain a first radio frequency signal, so as to transmit electrical energy and the first data to an RFID temperature tag through the first radio frequency signal; A demodulation subsystem for demodulating a second radio frequency signal sent by the RFID temperature tag and demodulating second data from the second radio frequency signal; A conformal antenna for receiving the second radio frequency signal and transmitting the first radio frequency signal. The conformal antenna includes an impedance matching circuit and a feeding bridge. The impedance matching circuit and the feeding bridge are disposed on a dielectric substrate made of a high-dielectric rare earth material. Wherein, the housing of the mobile terminal constitutes a radiation oscillator of the conformal antenna. Wherein, the dielectric constant of the high-dielectric rare earth material of the dielectric substrate is greater than or equal to 28; A directional coupler coupled to the wireless energy-harvesting communication subsystem and the demodulation subsystem for providing the first radio frequency signal to the conformal antenna and providing the second radio frequency signal to the demodulation subsystem; and A digital signal processor coupled to the wireless energy-harvesting communication subsystem and the demodulation subsystem for generating the first data according to an instruction of the mobile terminal and providing the second data to the mobile terminal. Wherein, the first data includes an instruction for controlling the RFID temperature tag to perform temperature detection, and the second data includes the ID and temperature data of the RFID temperature tag; A power supply for supplying electrical energy to the RFID temperature reading and writing device; the power supply includes a battery and a power supply circuit, and the battery is coupled to the power supply circuit.

8. The RFID temperature reading and writing device according to claim 7, wherein The wireless energy-harvesting communication subsystem includes: A digital modulator, the input end of which is coupled to the digital signal processor; A carrier power proportioner, the input end of which is coupled to the digital modulator, for modulating first data using an energy carrier to obtain a first radio frequency signal, so as to transmit electrical energy and the first data to an RFID temperature tag through the first radio frequency signal; A carrier energy radio frequency power amplifier, the input end of which is coupled to the carrier power proportioner, and the output end of which is coupled to the directional coupler; A temperature measurement energy balance loop controller coupled to the directional coupler for generating a feedback signal according to a reflected wave received by the conformal antenna and providing the feedback signal to the carrier power proportioner; Wherein, the carrier power proportioner is used for adjusting the power of the energy carrier according to the feedback signal.

9. A mobile terminal, characterized in that, Including the RFID temperature reading and writing device according to claim 7 or 8; or having the portable RFID temperature reading and writing device according to any one of claims 1 to 6.

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