CN114264884A - Dielectric constant measuring method and device - Google Patents
Dielectric constant measuring method and device Download PDFInfo
- Publication number
- CN114264884A CN114264884A CN202010978090.7A CN202010978090A CN114264884A CN 114264884 A CN114264884 A CN 114264884A CN 202010978090 A CN202010978090 A CN 202010978090A CN 114264884 A CN114264884 A CN 114264884A
- Authority
- CN
- China
- Prior art keywords
- distance parameter
- uwb signal
- dielectric constant
- signal transmission
- measuring
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 238000000034 method Methods 0.000 title claims abstract description 130
- 239000000463 material Substances 0.000 claims abstract description 73
- 230000008569 process Effects 0.000 claims abstract description 68
- 230000008054 signal transmission Effects 0.000 claims abstract description 65
- 238000004891 communication Methods 0.000 claims description 25
- 230000005540 biological transmission Effects 0.000 claims description 13
- 238000004590 computer program Methods 0.000 claims description 13
- 238000000691 measurement method Methods 0.000 claims description 6
- 238000012216 screening Methods 0.000 claims description 3
- 230000011664 signaling Effects 0.000 claims 4
- 238000005259 measurement Methods 0.000 abstract description 14
- 230000001976 improved effect Effects 0.000 abstract description 4
- 238000012545 processing Methods 0.000 description 21
- 238000007726 management method Methods 0.000 description 20
- 239000010410 layer Substances 0.000 description 19
- 230000006870 function Effects 0.000 description 17
- 230000005855 radiation Effects 0.000 description 10
- 238000010586 diagram Methods 0.000 description 8
- 238000010295 mobile communication Methods 0.000 description 8
- 238000005516 engineering process Methods 0.000 description 7
- 230000009286 beneficial effect Effects 0.000 description 5
- 230000003287 optical effect Effects 0.000 description 5
- 230000008859 change Effects 0.000 description 4
- 230000002349 favourable effect Effects 0.000 description 4
- 230000009467 reduction Effects 0.000 description 4
- 239000000126 substance Substances 0.000 description 4
- 230000001133 acceleration Effects 0.000 description 3
- 238000013528 artificial neural network Methods 0.000 description 3
- 230000008878 coupling Effects 0.000 description 3
- 238000010168 coupling process Methods 0.000 description 3
- 238000005859 coupling reaction Methods 0.000 description 3
- 230000000977 initiatory effect Effects 0.000 description 3
- 230000003993 interaction Effects 0.000 description 3
- 230000001737 promoting effect Effects 0.000 description 3
- 238000004364 calculation method Methods 0.000 description 2
- 238000013500 data storage Methods 0.000 description 2
- 230000001934 delay Effects 0.000 description 2
- 230000001965 increasing effect Effects 0.000 description 2
- 238000010030 laminating Methods 0.000 description 2
- 230000033001 locomotion Effects 0.000 description 2
- 238000001028 reflection method Methods 0.000 description 2
- 238000009877 rendering Methods 0.000 description 2
- 238000012935 Averaging Methods 0.000 description 1
- 230000002159 abnormal effect Effects 0.000 description 1
- 239000008186 active pharmaceutical agent Substances 0.000 description 1
- 230000003321 amplification Effects 0.000 description 1
- 238000013529 biological neural network Methods 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 210000000988 bone and bone Anatomy 0.000 description 1
- 210000004556 brain Anatomy 0.000 description 1
- 238000004422 calculation algorithm Methods 0.000 description 1
- 210000004027 cell Anatomy 0.000 description 1
- 230000000295 complement effect Effects 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- 239000012792 core layer Substances 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 235000019800 disodium phosphate Nutrition 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 230000004927 fusion Effects 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 230000036541 health Effects 0.000 description 1
- 230000001939 inductive effect Effects 0.000 description 1
- 238000011068 loading method Methods 0.000 description 1
- 210000002569 neuron Anatomy 0.000 description 1
- 238000003199 nucleic acid amplification method Methods 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
- 230000035515 penetration Effects 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 230000004044 response Effects 0.000 description 1
- 239000004065 semiconductor Substances 0.000 description 1
- 230000003238 somatosensory effect Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 238000003786 synthesis reaction Methods 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
- 230000000007 visual effect Effects 0.000 description 1
Images
Landscapes
- Telephone Function (AREA)
Abstract
The application discloses a dielectric constant measuring method and a device, wherein the method comprises the following steps: measuring a first distance parameter between the first device and the second device by performing an ultra-wideband UWB signal transmission process with the second device, wherein a UWB signal is transmitted from the first device or the second device to the second device or the first device through air in the UWB signal transmission process; measuring a second distance parameter between the first device and the second device by executing a UWB signal transmission process with the second device, wherein a UWB signal is transmitted from the first device or the second device to the second device or the first device through the material to be measured in the UWB signal transmission process; and determining the dielectric constant of the material to be detected according to the first distance parameter, the second distance parameter and the length of the material to be detected. By the adoption of the method and the device, convenience in dielectric constant measurement is facilitated to be improved, and expenditure of measuring equipment is reduced.
Description
Technical Field
The present disclosure relates to the field of electronic technologies, and in particular, to a method and an apparatus for measuring a dielectric constant.
Background
The dielectric constant is an important electromagnetic parameter of a substance, and the realization of the accurate measurement of the dielectric constant of the substance has very important significance. The current dielectric constant measurement technology is mainly divided into two types, namely a network parameter method and a resonant cavity method according to different test principles, wherein the network parameter method can be divided into a terminal loading method, a free space method, a transmission/reflection method and the like. The free space method is an open field electromagnetic characteristic parameter measurement technology, belongs to one of transmission/reflection methods, but the free space method has high requirements on measurement environment and equipment, so that if the measurement environment and the equipment cannot meet the requirements, the measurement result is low in accuracy, and how to simply, conveniently and accurately measure the dielectric constant of a substance is a problem to be solved.
Disclosure of Invention
The embodiment of the application provides a dielectric constant measuring method and device, aiming at improving the convenience of dielectric constant measurement and reducing the expense of measuring equipment.
In a first aspect, an embodiment of the present application provides a dielectric constant measurement method, which is applied to a first device, and the method includes:
measuring a first distance parameter between a first device and a second device by performing an ultra-wideband UWB signal transmission process with the second device, wherein a UWB signal is transmitted from the first device or the second device to the second device or the first device through air in the UWB signal transmission process;
measuring a second distance parameter between the first device and the second device by performing the UWB signal transmission process with the second device, wherein a UWB signal is transmitted from the first device or the second device to the second device or the first device through a material to be measured in the UWB signal transmission process;
and determining the dielectric constant of the material to be detected according to the first distance parameter, the second distance parameter and the length of the material to be detected.
In a second aspect, an embodiment of the present application provides a dielectric constant measuring apparatus applied to a first device, the dielectric constant measuring apparatus includes a measuring unit and a determining unit, wherein:
the measuring unit is used for measuring a first distance parameter between the first device and a second device by executing an ultra-wideband UWB signal transmission process with the second device, wherein a UWB signal is transmitted to the second device or the first device by the first device or the second device through air in the UWB signal transmission process; and a second distance parameter measuring unit configured to measure a second distance parameter between the first device and the second device by performing the UWB signal transmission process with the second device, wherein a UWB signal is transmitted from the first device or the second device to the second device or the first device through a material to be measured in the UWB signal transmission process;
the determining unit is used for determining the dielectric constant of the material to be measured according to the first distance parameter, the second distance parameter and the length of the material to be measured.
In a third aspect, an embodiment of the present application provides an electronic device, including a processor, a memory, a communication interface, and one or more programs, where the one or more programs are stored in the memory and configured to be executed by the processor, and the program includes instructions for executing steps in any method of the first aspect of the embodiment of the present application.
In a fourth aspect, the present application provides a computer-readable storage medium, where the computer-readable storage medium stores a computer program for electronic data exchange, where the computer program makes a computer perform part or all of the steps described in any one of the methods of the first aspect of the present application.
In a fifth aspect, the present application provides a computer program product, wherein the computer program product includes a non-transitory computer-readable storage medium storing a computer program, and the computer program is operable to cause a computer to perform some or all of the steps as described in any one of the methods of the first aspect of the embodiments of the present application. The computer program product may be a software installation package.
It can be seen that in the embodiment of the present application, a first device measures a first distance parameter between the first device and a second device by performing an ultra-wideband UWB signal transmission process with the second device, wherein a UWB signal is transmitted over the air by the first device or the second device to the second device or the first device during the UWB signal transmission, then, the first device measures a second distance parameter between the first device and the second device by performing the UWB signal transmission procedure with the second device, wherein in the process of UWB signal transmission, UWB signals are transmitted to the second device or the first device from the first device or the second device through a material to be tested, and further, and determining the dielectric constant of the material to be detected according to the first distance parameter, the second distance parameter and the length of the material to be detected. It can be seen that, first equipment only need through with the second equipment between the mutual UWB signal, alright in order to measure the dielectric constant of the material that awaits measuring, be favorable to promoting the convenience that the dielectric constant was measured, moreover, the process of obtaining first distance parameter and the process of obtaining the second distance parameter are the change of the medium that signal transmission passed through only, the dielectric constant that obtains like this can effectual reduction environment or the equipment between the interference, promote the dielectric constant measuring accuracy.
Drawings
In order to more clearly illustrate the embodiments of the present application 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, it is obvious that the drawings in the following description are only some embodiments of the present application, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
Fig. 1 is a schematic structural diagram of an electronic device according to an embodiment of the present disclosure;
fig. 2 is a schematic diagram of a software structure of an electronic device according to an embodiment of the present application;
FIG. 3 is a schematic flow chart of a dielectric constant measurement method according to an embodiment of the present disclosure;
FIG. 4 is a schematic illustration of a placement between a first device and a second device provided by an embodiment of the present application;
fig. 5 is a schematic illustration of a placement between a first device and a second device according to an embodiment of the present application;
FIG. 6 is a schematic illustration of a placement between a first device and a second device provided by an embodiment of the present application;
FIG. 7 is a schematic flow chart of another dielectric constant measurement method provided in the embodiments of the present application;
FIG. 8 is a block diagram of a distributed functional unit of a dielectric constant measuring apparatus according to an embodiment of the present disclosure;
fig. 9 is a block diagram of an integrated functional unit of a dielectric constant measuring device according to an embodiment of the present disclosure.
Detailed Description
The technical solutions in the embodiments of the present application will be described below with reference to the accompanying drawings.
In order to better understand the scheme of the embodiments of the present application, the following first introduces the related terms and concepts that may be involved in the embodiments of the present application.
1) The electronic device may be a portable electronic device, such as a cell phone, a tablet computer, a wearable electronic device with wireless communication capabilities, etc., that also contains other functionality, such as personal digital assistant and/or music player functionality. Exemplary embodiments of the portable electronic device include, but are not limited to, portable devices that carry an IOS system, an Android system, a Microsoft system, or other operating system. The portable device may also be other portable devices, such as a Laptop computer (Laptop), and the first device and the second device mentioned in the embodiments of the present application are both the electronic devices.
2) An Ultra Wide Band (UWB) technology is a wireless carrier communication technology using a frequency bandwidth of 1GHz or more. It does not adopt sine carrier wave, but uses nanosecond non-sine wave narrow pulse to transmit data, and the impulse pulse has high positioning accuracy. With UWB technology, it is easy to integrate positioning with communication, which is difficult to do with conventional radios. The UWB technology has extremely strong penetration capacity, can carry out accurate positioning indoors and underground, and the ultra wide band radio locator can give relative position, and its positioning accuracy can reach centimeter level.
3) The base station may be any device that emits a UWB signal, for example, the electronic device described above that emits a UWB signal, or a dedicated device that emits a UWB signal, and the base station may continuously emit a UWB signal including its own location information.
4) Two-Way Ranging (TWR) is the determination of the distance between Two devices by taking the average of the time of flight of multiple signals between the Two devices.
5) Single-sided Two-way Ranging (SS-TWR) is a method of determining the distance between Two devices by the time of flight of a Single round-trip message between the Two devices.
6) Two-sided Two-way Ranging (DS TWR) is based on multiple message transmissions between an initiating node and a responding node to obtain at least Two round-trip delays, and measures the distance between Two devices at the responding end.
Fig. 1 shows a schematic structural diagram of an electronic device 100. The electronic device 100 may include a processor 110, an external memory interface 120, an internal memory 121, a Universal Serial Bus (USB) interface 130, a charge management module 140, a power management module 141, a battery 142, an antenna 1, an antenna 2, a mobile communication module 150, a wireless communication module 160, an audio module 170, a speaker 170A, a receiver 170B, a microphone 170C, an earphone interface 170D, a sensor module 180, a compass 190, a motor 191, a pointer 192, a camera 193, a UWB module 194, a Subscriber Identification Module (SIM) card interface 195, and the like.
It is to be understood that the illustrated structure of the embodiment of the present application does not specifically limit the electronic device 100. In other embodiments of the present application, electronic device 100 may include more or fewer components than shown, or some components may be combined, some components may be split, or a different arrangement of components. The illustrated components may be implemented in hardware, software, or a combination of software and hardware.
Processor 110 may include one or more processing units, such as: the processor 110 may include an Application Processor (AP), a modem processor, a Graphics Processing Unit (GPU), an Image Signal Processor (ISP), a controller, a video codec, a Digital Signal Processor (DSP), a baseband processor, and/or a neural-Network Processing Unit (NPU), etc. Wherein the different processing units may be separate components or may be integrated in one or more processors. In some embodiments, the electronic device 100 may also include one or more processors 110. The controller can generate an operation control signal according to the instruction operation code and the time sequence signal to complete the control of instruction fetching and instruction execution. In other embodiments, a memory may also be provided in processor 110 for storing instructions and data. Illustratively, the memory in the processor 110 may be a cache memory. The memory may hold instructions or data that have just been used or recycled by the processor 110. If the processor 110 needs to reuse the instruction or data, it can be called directly from the memory. This avoids repeated accesses and reduces the latency of the processor 110, thereby increasing the efficiency with which the electronic device 100 processes data or executes instructions.
In some embodiments, processor 110 may include one or more interfaces. The interface may include an inter-integrated circuit (I2C) interface, an inter-integrated circuit audio (I2S) interface, a Pulse Code Modulation (PCM) interface, a universal asynchronous receiver/transmitter (UART) interface, a Mobile Industry Processor Interface (MIPI), a general-purpose input/output (GPIO) interface, a SIM card interface, a USB interface, and/or the like. The USB interface 130 is an interface conforming to the USB standard specification, and may specifically be a Mini USB interface, a Micro USB interface, a USB Type C interface, or the like. The USB interface 130 may be used to connect a charger to charge the electronic device 100, and may also be used to transmit data between the electronic device 100 and a peripheral device. The USB interface 130 may also be used to connect to a headset to play audio through the headset.
It should be understood that the interface connection relationship between the modules illustrated in the embodiments of the present application is only an illustration, and does not limit the structure of the electronic device 100. In other embodiments of the present application, the electronic device 100 may also adopt different interface connection manners or a combination of multiple interface connection manners in the above embodiments.
The charging management module 140 is configured to receive charging input from a charger. The charger may be a wireless charger or a wired charger. In some wired charging embodiments, the charging management module 140 may receive charging input from a wired charger via the USB interface 130. In some wireless charging embodiments, the charging management module 140 may receive a wireless charging input through a wireless charging coil of the electronic device 100. The charging management module 140 may also supply power to the electronic device through the power management module 141 while charging the battery 142.
The power management module 141 is used to connect the battery 142, the charging management module 140 and the processor 110. The power management module 141 receives an input of the battery 142 and/or the charge management module 140, and supplies power to the processor 110, the internal memory 121, the external memory, the UWB module 194, the camera 193, the wireless communication module 160, and the like. The power management module 141 may also be used to monitor parameters such as battery capacity, battery cycle count, battery state of health (leakage, impedance), etc. In some other embodiments, the power management module 141 may also be disposed in the processor 110. In other embodiments, the power management module 141 and the charging management module 140 may be disposed in the same device.
The wireless communication function of the electronic device 100 may be implemented by the antenna 1, the antenna 2, the mobile communication module 150, the wireless communication module 160, a modem processor, a baseband processor, and the like.
The antennas 1 and 2 are used for transmitting and receiving electromagnetic wave signals. Each antenna in the electronic device 100 may be used to cover a single or multiple communication bands. Different antennas can also be multiplexed to improve the utilization of the antennas. For example: the antenna 1 may be multiplexed as a diversity antenna of a wireless local area network. In other embodiments, the antenna may be used in conjunction with a tuning switch, and the antennas 1 and 2 may be UWB antennas.
The mobile communication module 150 may provide a solution including 2G/3G/4G/5G wireless communication applied to the electronic device 100. The mobile communication module 150 may include at least one filter, a switch, a power amplifier, a Low Noise Amplifier (LNA), and the like. The mobile communication module 150 may receive the electromagnetic wave from the antenna 1, filter, amplify, etc. the received electromagnetic wave, and transmit the electromagnetic wave to the modem processor for demodulation. The mobile communication module 150 may also amplify the signal modulated by the modem processor, and convert the signal into electromagnetic wave through the antenna 1 to radiate the electromagnetic wave. In some embodiments, at least some of the functional modules of the mobile communication module 150 may be disposed in the processor 110. In some embodiments, at least some of the functional modules of the mobile communication module 150 may be disposed in the same device as at least some of the modules of the processor 110.
The wireless communication module 160 may provide a solution for wireless communication applied to the electronic device 100, including Wireless Local Area Networks (WLANs) (such as wireless fidelity (Wi-Fi) networks), bluetooth (bluetooth), Global Navigation Satellite System (GNSS), Frequency Modulation (FM), Near Field Communication (NFC), Infrared (IR), and the like. The wireless communication module 160 may be one or more devices integrating at least one communication processing module. The wireless communication module 160 receives electromagnetic waves via the antenna 2, performs frequency modulation and filtering processing on electromagnetic wave signals, and transmits the processed signals to the processor 110. The wireless communication module 160 may also receive a signal to be transmitted from the processor 110, perform frequency modulation and amplification on the signal, and convert the signal into electromagnetic waves through the antenna 2 to radiate the electromagnetic waves.
The electronic device 100 implements a display function by a GPU, an application processor, and the like. A GPU is a microprocessor that processes images, performing mathematical and geometric calculations, and used for graphics rendering. The processor 110 may include one or more GPUs that execute program instructions to generate or alter display information.
The UWB module 194 is used for realizing accurate positioning of the electronic device, and UWB signal interaction with other devices can be performed through the antenna 1 and/or the antenna 2, so as to realize ranging and positioning functions.
The ISP is used to process the data fed back by the camera 193. For example, when a photo is taken, the shutter is opened, light is transmitted to the camera photosensitive element through the lens, the optical signal is converted into an electrical signal, and the camera photosensitive element transmits the electrical signal to the ISP for processing and converting into an image visible to naked eyes. The ISP can also carry out algorithm optimization on the noise, brightness and skin color of the image. The ISP can also optimize parameters such as exposure, color temperature and the like of a shooting scene. In some embodiments, the ISP may be provided in camera 193.
The camera 193 is used to capture still images or video. The object generates an optical image through the lens and projects the optical image to the photosensitive element. The photosensitive element may be a Charge Coupled Device (CCD) or a complementary metal-oxide-semiconductor (CMOS) phototransistor. The light sensing element converts the optical signal into an electrical signal, which is then passed to the ISP where it is converted into a digital image signal. And the ISP outputs the digital image signal to the DSP for processing. The DSP converts the digital image signal into image signal in standard RGB, YUV and other formats. In some embodiments, the electronic device 100 may include 1 or more cameras 193.
The digital signal processor is used for processing digital signals, and can process digital image signals and other digital signals. For example, when the electronic device 100 selects a frequency bin, the digital signal processor is used to perform fourier transform or the like on the frequency bin energy.
Video codecs are used to compress or decompress digital video. The electronic device 100 may support one or more video codecs. In this way, the electronic device 100 may play or record video in a variety of encoding formats, such as: moving Picture Experts Group (MPEG) 1, MPEG2, MPEG3, MPEG4, and the like.
The NPU is a neural-network (NN) computing processor that processes input information quickly by using a biological neural network structure, for example, by using a transfer mode between neurons of a human brain, and can also learn by itself continuously. Applications such as intelligent recognition of the electronic device 100 can be realized through the NPU, for example: image recognition, face recognition, speech recognition, text understanding, and the like.
The external memory interface 120 may be used to connect an external memory card, such as a Micro SD card, to extend the memory capability of the electronic device 100. The external memory card communicates with the processor 110 through the external memory interface 120 to implement a data storage function. For example, files such as music, video, etc. are saved in an external memory card.
Internal memory 121 may be used to store one or more computer programs, including instructions. The processor 110 may execute the above-mentioned instructions stored in the internal memory 121, so as to enable the electronic device 100 to execute the method for displaying page elements provided in some embodiments of the present application, and various applications and data processing. The internal memory 121 may include a program storage area and a data storage area. Wherein, the storage program area can store an operating system; the storage program area may also store one or more applications (e.g., gallery, contacts, etc.), and the like. The storage data area may store data (e.g., photos, contacts, etc.) created during use of the electronic device 100, and the like. Further, the internal memory 121 may include a high-speed random access memory, and may also include a non-volatile memory, such as one or more magnetic disk storage components, flash memory components, Universal Flash Storage (UFS), and the like. In some embodiments, the processor 110 may cause the electronic device 100 to execute the method for displaying page elements provided in the embodiments of the present application and other applications and data processing by executing instructions stored in the internal memory 121 and/or instructions stored in a memory provided in the processor 110. The electronic device 100 may implement audio functions through the audio module 170, the speaker 170A, the receiver 170B, the microphone 170C, the earphone interface 170D, and the application processor, etc. Such as music playing, recording, etc.
The sensor module 180 may include a pressure sensor 180A, a gyro sensor 180B, an air pressure sensor 180C, a magnetic sensor 180D, an acceleration sensor 180E, a distance sensor 180F, a proximity light sensor 180G, a fingerprint sensor 180H, a temperature sensor 180J, a touch sensor 180K, an ambient light sensor 180L, a bone conduction sensor 180M, and the like.
The pressure sensor 180A is used for sensing a pressure signal, and converting the pressure signal into an electrical signal. The pressure sensor 180A can be of a wide variety, such as a resistive pressure sensor, an inductive pressure sensor, a capacitive pressure sensor, and the like. The capacitive pressure sensor may be a sensor comprising at least two parallel plates having an electrically conductive material. When a force acts on the pressure sensor 180A, the capacitance between the electrodes changes. The electronic device 100 determines the strength of the pressure from the change in capacitance. The electronic apparatus 100 may also calculate the touched position from the detection signal of the pressure sensor 180A. In some embodiments, the touch operations that are applied to the same touch position but different touch operation intensities may correspond to different operation instructions. For example: and when the touch operation with the touch operation intensity smaller than the first pressure threshold value acts on the short message application icon, executing an instruction for viewing the short message. And when the touch operation with the touch operation intensity larger than or equal to the first pressure threshold value acts on the short message application icon, executing an instruction of newly building the short message.
The gyro sensor 180B may be used to determine the motion attitude of the electronic device 100. In some embodiments, the angular velocity of electronic device 100 about three axes (i.e., X, Y and the Z axis) may be determined by gyroscope sensor 180B. The gyro sensor 180B may be used for photographing anti-shake. For example, when the shutter is pressed, the gyro sensor 180B detects a shake angle of the electronic device 100, calculates a distance to be compensated for by the lens module according to the shake angle, and allows the lens to counteract the shake of the electronic device 100 through a reverse movement, thereby achieving anti-shake. The gyroscope sensor 180B may also be used for navigation, somatosensory gaming scenes.
The acceleration sensor 180E may detect the magnitude of acceleration of the electronic device 100 in various directions (typically three axes). The magnitude and direction of gravity can be detected when the electronic device 100 is stationary. The method can also be used for recognizing the posture of the electronic equipment, and is applied to horizontal and vertical screen switching, pedometers and other applications.
The ambient light sensor 180L is used to sense the ambient light level. The ambient light sensor 180L may be used to automatically adjust the white balance when taking a picture. The ambient light sensor 180L may also cooperate with the proximity light sensor 180G to detect whether the electronic device 100 is in a pocket to prevent accidental touches.
The fingerprint sensor 180H is used to collect a fingerprint. The electronic device 100 can utilize the collected fingerprint characteristics to unlock the fingerprint, access the application lock, photograph the fingerprint, answer an incoming call with the fingerprint, and so on.
The temperature sensor 180J is used to detect temperature. In some embodiments, electronic device 100 implements a temperature processing strategy using the temperature detected by temperature sensor 180J. For example, when the temperature reported by the temperature sensor 180J exceeds a threshold, the electronic device 100 performs a reduction in performance of a processor located near the temperature sensor 180J, so as to reduce power consumption and implement thermal protection. In other embodiments, the electronic device 100 heats the battery 142 when the temperature is below another threshold to avoid the low temperature causing the electronic device 100 to shut down abnormally. In other embodiments, when the temperature is lower than a further threshold, the electronic device 100 performs boosting on the output voltage of the battery 142 to avoid abnormal shutdown due to low temperature.
The touch sensor 180K is also referred to as a "touch panel". The touch sensor 180K is used to detect a touch operation applied thereto or nearby. The touch sensor can communicate the detected touch operation to the application processor to determine the touch event type. In other embodiments, the touch sensor 180K may also be disposed on the surface of the electronic device 100.
Fig. 2 is a block diagram of a software structure of the electronic device 100 according to the embodiment of the present application. The layered architecture divides the software into several layers, each layer having a clear role and division of labor. The layers communicate with each other through a software interface. In some embodiments, the Android system is divided into four layers, an application layer, an application framework layer, an Android runtime (Android runtime) and system library, and a kernel layer from top to bottom. The application layer may include a series of application packages.
As shown in fig. 2, the application package may include applications such as camera, gallery, calendar, phone call, map, navigation, WLAN, bluetooth, music, video, short message, etc.
The application framework layer provides an Application Programming Interface (API) and a programming framework for the application program of the application layer. The application framework layer includes a number of predefined functions.
As shown in FIG. 2, the application framework layers may include a window manager, content provider, view system, phone manager, resource manager, notification manager, and the like.
The window manager is used for managing window programs. The window manager can obtain the size of the display screen, judge whether a status bar exists, lock the screen, intercept the screen and the like.
The content provider is used to store and retrieve data and make it accessible to applications. The data may include video, images, audio, calls made and received, browsing history and bookmarks, phone books, etc.
The view system includes visual controls such as controls to display text, controls to display pictures, and the like. The view system may be used to build applications. The display interface may be composed of one or more views. For example, the display interface including the short message notification icon may include a view for displaying text and a view for displaying pictures.
The phone manager is used to provide communication functions of the electronic device 100. Such as management of call status (including on, off, etc.).
The resource manager provides various resources for the application, such as localized strings, icons, pictures, layout files, video files, and the like.
The notification manager enables the application to display notification information in the status bar, can be used to convey notification-type messages, can disappear automatically after a short dwell, and does not require user interaction. Such as a notification manager used to inform download completion, message alerts, etc. The notification manager may also be a notification that appears in the form of a chart or scroll bar text at the top status bar of the system, such as a notification of a background running application, or a notification that appears on the screen in the form of a dialog window. For example, prompting text information in the status bar, sounding a prompt tone, vibrating the electronic device, flashing an indicator light, etc.
The Android Runtime comprises a core library and a virtual machine. The Android runtime is responsible for scheduling and managing an Android system.
The core library comprises two parts: one part is a function which needs to be called by java language, and the other part is a core library of android.
The application layer and the application framework layer run in a virtual machine. And executing java files of the application program layer and the application program framework layer into a binary file by the virtual machine. The virtual machine is used for performing the functions of object life cycle management, stack management, thread management, safety and exception management, garbage collection and the like.
The system library may include a plurality of functional modules. For example: surface managers (surface managers), media libraries (media libraries), three-dimensional graphics processing libraries (e.g., OpenGL ES), 2D graphics engines (e.g., SGL), and the like.
The surface manager is used to manage the display subsystem and provide fusion of 2D and 3D layers for multiple applications.
The media library supports a variety of commonly used audio, video format playback and recording, and still image files, among others. The media library may support a variety of audio-video encoding formats, such as: MPEG4, H.264, MP3, AAC, AMR, JPG, PNG, etc.
The three-dimensional graphic processing library is used for realizing three-dimensional graphic drawing, image rendering, synthesis, layer processing and the like.
The 2D graphics engine is a drawing engine for 2D drawing.
The kernel layer is a layer between hardware and software. The inner core layer at least comprises a display driver, a camera driver, an audio driver and a sensor driver.
The following describes embodiments of the present application in detail.
Referring to fig. 3, fig. 3 is a schematic flow chart of a dielectric constant measuring method applied to a first apparatus according to an embodiment of the present application, wherein the dielectric constant measuring method includes the following operations.
S301, a first device measures a first distance parameter between the first device and a second device by executing an ultra-wideband UWB signal transmission process between the first device and the second device, wherein a UWB signal is transmitted to the second device or the first device through air by the first device or the second device in the UWB signal transmission process;
the UWB signal transmission process comprises a UWB signal transmission process corresponding to single-side two-way ranging SS-TWR and/or a UWB signal transmission process corresponding to double-side two-way ranging DS-TWR, namely the first distance parameter is measured by an SS-TWR and/or DS-TWR method.
Wherein, the SS-TWR is a simple measurement of a single round-trip message time to obtain a signal flight time, and further determine a first distance parameter between the first device and the second device, the DS-TWR is a measurement of a first distance parameter at the responding end based on at least 3 round-trip transmissions of a message between the initiating node and the responding node, obtaining at least two round-trip delays, and the single round-trip transmission may be, for example: the first device actively sends data to the second device, and the second device returns data response to the first device.
The initiating node may be a first device or a second device, the responding node may be a second device or a first device, and the present disclosure is not limited thereto, and the first device and the second device may communicate messages, for example, if the second device calculates the first distance parameter according to the time of flight of the UWB signal, the first distance parameter may be sent to the first device.
Specifically, the first distance parameter may be obtained by measuring by an SS-TWR method and/or a DS-TWR method, or may be obtained by measuring by an SS-TWR method and a DS-TWR method (for example, obtaining a first reference distance parameter by measuring by an SS-TWR method, obtaining a second reference distance parameter by measuring by a DS-TWR method, obtaining the first distance parameter by averaging the first reference distance parameter and the second reference distance parameter, and the like), and the like, which are not limited herein.
Wherein, during the UWB signal transmission process, the UWB signal is transmitted from the first device or the second device to the second device or the first device through air, that is, the UWB signal may be transmitted from the first device to the second device through air, or transmitted from the second device to the first device through air, and no object is placed between the first device and the second device, as shown in fig. 4.
S302, the first device measures a second distance parameter between the first device and the second device by executing the UWB signal transmission process between the first device and the second device, wherein in the UWB signal transmission process, a UWB signal is transmitted to the second device or the first device from the first device or the second device through a material to be measured;
wherein, in the UWB signal transmission in-process UWB signal by first equipment or second equipment through the material transmission that awaits measuring extremely second equipment or first equipment, promptly the UWB signal can by first equipment through the material transmission that awaits measuring extremely second equipment, or by second equipment through the material transmission that awaits measuring extremely first equipment, just between first equipment and the second equipment, as shown in figure 5, place the material that awaits measuring, the material that awaits measuring presss from both sides between first equipment with between the second equipment.
Specifically, the specific implementation of the first device measuring the second distance parameter between the first device and the second device by performing the UWB signal transmission process with the second device is the same as the specific implementation of the first device measuring the first distance parameter between the first device and the second device by performing the UWB signal transmission process with the second device, only the substances passing through during the UWB signal transmission are different, that is, the environment when measuring the first distance parameter and the second distance parameter is the same, the measuring method is the same, and when measuring the first distance parameter and the second distance parameter on both sides, the positions where the first device and the second device are placed are the same.
In one possible example, the radiation surface of the first device is attached to the first surface of the material to be tested, and the radiation surface of the second device is attached to the second surface of the material to be tested.
Specifically, the radiation surface of the first device is a surface where the UWB antenna of the first device is located, the radiation surface of the second device is a surface where the UWB antenna of the second device is located, as shown in fig. 6, the fitting of the radiation surface of the first device to the first surface of the material to be measured means that, when the first device transmits or receives UWB signals, the UWB antenna transmits or receives UWB signals towards the material to be measured, the radiation surface of the second device is attached to the second surface of the material to be measured, that is, when the first device transmits or receives a UWB signal, the UWB antenna of the second device may transmit or receive UWB signals towards the material to be tested, and no gap exists between the radiation surface of the first device and the first surface of the material to be detected, and no gap exists between the radiation surface of the second device and the second surface of the material to be detected.
The first device and the second device may be placed oppositely or over against each other, and the placement positions of the first device and the second device are unchanged when the first distance parameter and the second distance parameter are measured.
It can be seen that, in this example, the radiation face of first equipment and the laminating of the first surface of the material that awaits measuring, the radiation face of second equipment and the laminating of the second surface of the material that awaits measuring make when measuring the second distance parameter, the UWB signal can only reach the receiving node through the material that awaits measuring from the transmitting node, and can not influence measuring result through air etc. be favorable to reducing dielectric constant's measuring error, promote dielectric constant measuring accuracy.
And S303, the first equipment determines the dielectric constant of the material to be detected according to the first distance parameter, the second distance parameter and the length of the material to be detected.
In one possible example, the determining the dielectric constant of the material to be tested according to the first distance parameter and the second distance parameter, and the length of the material to be tested includes:
and calculating the dielectric constant of the material to be detected according to the first distance parameter, the second distance parameter and the length of the material to be detected by a first formula, wherein the first formula is as follows:
wherein D is1As said first distance parameter, D2Is the second distance parameter, L is the length of the material to be measured, epsilonrIs the dielectric constant of the material to be measured.
The length of the material to be measured is the length of the UWB signal passing through the material to be measured in the process of transmitting the UWB signal from the first device or the second device to the second device or the first device, for example, when the material to be measured is sandwiched between the first device and the second device and is attached to the first device and the second device, the length of the material to be measured is as shown in fig. 5.
Therefore, in this example, when the first device calculates the dielectric constant of the material to be measured, the influence of the environment in the measurement process can be offset by subtracting the first distance parameter from the second distance parameter, and therefore, the dielectric constant of the material to be measured by the method according to the formula is more accurate.
It can be seen that in the embodiment of the present application, a first device measures a first distance parameter between the first device and a second device by performing an ultra wideband UWB signal transmission process with the second device, wherein a UWB signal is transmitted over the air by the first device or the second device to the second device or the first device during the UWB signal transmission, then, the first device measures a second distance parameter between the first device and the second device by performing the UWB signal transmission procedure with the second device, wherein in the process of UWB signal transmission, UWB signals are transmitted to the second device or the first device from the first device or the second device through a material to be tested, and further, and determining the dielectric constant of the material to be detected according to the first distance parameter, the second distance parameter and the length of the material to be detected. It can be seen that, first equipment only need through with the second equipment between the mutual UWB signal, alright in order to measure the dielectric constant of the material that awaits measuring, be favorable to promoting the convenience that the dielectric constant was measured, moreover, the process of obtaining first distance parameter and the process of obtaining the second distance parameter are the change of the medium that signal transmission passed through only, the dielectric constant that obtains like this can effectual reduction environment or the equipment between the interference, promote the dielectric constant measuring accuracy.
In one possible example, said measuring a first distance parameter between said first device and a second device by performing an ultra-wideband UWB signal transmission process with said second device comprises:
obtaining a plurality of reference distance parameters between the first device and the second device by executing the UWB signal transmission process with the second device for a plurality of times;
determining the first distance parameter between the first device and a second device from the plurality of reference distance parameters.
The UWB signal transmission process may be executed multiple times by an SS-TWR method and/or a DS-TWR method, which is not limited herein.
The specific implementation manner of determining the first distance parameter between the first device and the second device according to the multiple reference distance parameters may be various, for example, a median of the multiple reference distance parameters may be selected as the first distance parameter, for example, 12, 15, 17, 19, 23, the five reference distance parameters, and the median 17 may be selected as the first distance parameter, or a mean of the multiple reference distance parameters may be calculated, and the mean is determined to be the first distance parameter, which is not limited herein.
It can be seen that, in this example, a plurality of reference distance parameters are obtained by repeatedly measuring the distance parameter between the first device and the second device, and then the first distance parameter between the first device and the second device is finally determined according to the plurality of reference distance parameters, instead of being obtained by measuring only once, which is beneficial to improving the accuracy of determining the first distance parameter and effectively avoiding errors in the measurement process.
In this possible example, said determining said first distance parameter between said first device and second device from said plurality of reference distance parameters comprises:
screening a plurality of target reference distance parameters from the plurality of reference distance parameters;
when the number of the target reference distance parameters is an odd number, selecting a median of the target reference distance parameters as the first distance parameter;
when the number of the target reference distance parameters is an even number, determining the average value of the target reference distance parameters as the first distance parameter.
The specific implementation manner of screening the multiple target reference distance parameters from the multiple reference distance parameters may be various, for example, the values except for the maximum value and the minimum value in the multiple reference distance parameters may be selected as the multiple target reference distance parameters, or the median in the multiple reference distance parameters may be determined, the reference distance parameter whose difference with the median is smaller than a preset distance threshold value and the median are selected as the target reference distance parameters, and the like, which is not limited herein.
Specifically, the median is also called median, and the term of statistics is the number of the middle position in a set of data arranged in sequence.
It can be seen that, in this example, the first device first selects the effective target reference distance parameter, and then determines the first distance parameter through the plurality of effective target reference distance parameters, which is beneficial to improving the accuracy and effectiveness of determining the first distance parameter, and further improving the accuracy of determining the dielectric constant.
In one possible example, when the first distance parameter is measured, the transmitting power of the UWB signal during the transmission of the UWB signal is a first transmitting power, and the receiving power of the UWB signal is a first receiving power; when the second distance parameter is measured, the transmitting power of the UWB signal in the UWB signal transmission process is a second transmitting power, and the receiving power of the UWB signal is a second receiving power; wherein the second transmission power is greater than the first transmission power, so that a difference between the second reception power and the first reception power is less than a preset threshold.
The preset threshold is an empirical value, and is set in the first device by a technician in the process of developing the first device, which is not limited herein.
When the second distance parameter is measured, the material to be measured is placed between the first equipment and the second equipment, and in order to enable the difference value between the second receiving power and the first receiving power to be smaller than a preset threshold value, the conditions in all aspects in the signal transmission process are the same in the environment when the second distance parameter is measured and the first distance parameter is measured, so that the error is reduced, and then the second transmitting power needs to be increased.
Therefore, in this example, the second transmit power when the second distance parameter is measured is greater than the first transmit power when the first distance parameter is measured, so that the difference between the second receive power and the first receive power is smaller, which is beneficial to avoiding the error of dielectric constant calculation caused by the large difference between the two measured signal transmission processes, and improving the accuracy of the dielectric constant.
Referring to fig. 7, fig. 7 is a schematic flow chart of another dielectric constant measuring method according to an embodiment of the present application, which can be applied to a first apparatus. As shown in the figure, the dielectric constant measuring method includes the following operations:
s401, a first device obtains a plurality of reference distance parameters between the first device and a second device by executing a UWB signal transmission process with the second device for a plurality of times, wherein in the UWB signal transmission process, a UWB signal is transmitted to the second device or the first device through air by the first device or the second device.
S402, the first device screens out a plurality of target reference distance parameters from the plurality of reference distance parameters.
And S403, when the number of the plurality of target reference distance parameters is odd, the first device selects a median of the plurality of target reference distance parameters as a first distance parameter.
S404, when the number of the target reference distance parameters is an even number, the first device determines that an average value of the target reference distance parameters is the first distance parameter.
S405, the first device measures a second distance parameter between the first device and the second device through executing the UWB signal transmission process between the first device and the second device, wherein in the UWB signal transmission process, a UWB signal is transmitted to the second device or the first device through a material to be measured by the first device or the second device.
S406, the first device determines the dielectric constant of the material to be detected according to the first distance parameter, the second distance parameter and the length of the material to be detected.
It can be seen that in the embodiment of the present application, a first device measures a first distance parameter between the first device and a second device by performing an ultra wideband UWB signal transmission process with the second device, wherein a UWB signal is transmitted over the air by the first device or the second device to the second device or the first device during the UWB signal transmission, then, the first device measures a second distance parameter between the first device and the second device by performing the UWB signal transmission procedure with the second device, wherein in the process of UWB signal transmission, UWB signals are transmitted to the second device or the first device from the first device or the second device through a material to be tested, and further, and determining the dielectric constant of the material to be detected according to the first distance parameter, the second distance parameter and the length of the material to be detected. It can be seen that, first equipment only need through with the second equipment between the mutual UWB signal, alright in order to measure the dielectric constant of the material that awaits measuring, be favorable to promoting the convenience that the dielectric constant was measured, moreover, the process of obtaining first distance parameter and the process of obtaining the second distance parameter are the change of the medium that signal transmission passed through only, the dielectric constant that obtains like this can effectual reduction environment or the equipment between the interference, promote the dielectric constant measuring accuracy.
In addition, effective target reference distance parameters are firstly screened out by the first equipment, then the first distance parameters are determined through a plurality of effective target reference distance parameters, the accuracy and the effectiveness of determining the first distance parameters are favorably improved, the accuracy of determining the dielectric constant is further improved, in addition, the number of the target reference distance parameters is different, the strategies for determining the first distance parameters are different, and the convenience and the flexibility of determining the first reference distance parameters are favorably improved.
The embodiment of the application provides a dielectric constant measuring device, which can be the electronic equipment. Specifically, the dielectric constant measuring apparatus is used to perform the steps of the above dielectric constant measuring method. The dielectric constant measuring device provided by the embodiment of the application can comprise modules corresponding to the corresponding steps.
In the embodiment of the present application, the dielectric constant measuring apparatus may be divided into functional modules according to the method example, for example, each functional module may be divided according to each function, or two or more functions may be integrated into one processing module. The integrated module can be realized in a hardware mode, and can also be realized in a software functional module mode. The division of the modules in the embodiment of the present application is schematic, and is only a logic function division, and there may be another division manner in actual implementation.
Fig. 8 shows a schematic diagram of a possible structure of the dielectric constant measuring device according to the above-described embodiment in the case of dividing each functional module according to each function. As shown in fig. 8, the dielectric constant measuring apparatus 500 includes a measuring unit 501 and a determining unit 502, in which:
the measuring unit 501 is configured to measure a first distance parameter between a first device and a second device by performing an ultra wideband UWB signal transmission process with the second device, where a UWB signal is transmitted from the first device or the second device to the second device or the first device through air in the UWB signal transmission process; and a second distance parameter measuring unit configured to measure a second distance parameter between the first device and the second device by performing the UWB signal transmission process with the second device, wherein a UWB signal is transmitted from the first device or the second device to the second device or the first device through a material to be measured in the UWB signal transmission process;
the determining unit 502 is configured to determine the dielectric constant of the material to be measured according to the first distance parameter, the second distance parameter, and the length of the material to be measured.
All relevant contents of each step related to the above method embodiment may be referred to the functional description of the corresponding functional module, and are not described herein again. Of course, the dielectric constant measuring device provided in the embodiments of the present application includes, but is not limited to, the above modules, for example: the dielectric constant measuring device may further include a memory unit. The memory unit may be used to store program codes and data of the dielectric constant measuring device.
In the case of using an integrated unit, a schematic structural diagram of the dielectric constant measuring device provided in the embodiment of the present application is shown in fig. 9. In fig. 9, a dielectric constant measuring apparatus 600 includes: a processing module 602 and a communication module 601. The processing module 602 is used to control and manage the actions of the permittivity measurement device, e.g., perform the steps performed by the measurement unit 501 and the determination unit 502, and/or other processes for performing the techniques described herein. The communication module 601 is used to support the interaction between the dielectric constant measuring apparatus and other devices, for example, to perform the steps of transmitting and receiving signals during UWB signal transmission, or between modules inside the dielectric constant measuring apparatus. As shown in fig. 9, the dielectric constant measuring apparatus may further include a storage module 603, and the storage module 603 is used for storing program codes and data of the dielectric constant measuring apparatus, for example, contents stored in the storage unit.
The Processing module 602 may be a Processor or a controller, and may be, for example, a Central Processing Unit (CPU), a general-purpose Processor, a Digital Signal Processor (DSP), an ASIC, an FPGA or other programmable logic device, a transistor logic device, a hardware component, or any combination thereof. Which may implement or perform the various illustrative logical blocks, modules, and circuits described in connection with the disclosure. The processor may also be a combination of computing functions, e.g., comprising one or more microprocessors, DSPs, and microprocessors, among others. The communication module 601 may be a transceiver, a radio frequency circuit or a communication interface, etc. The storage module 603 may be a memory.
All relevant contents of each scene related to the method embodiment may be referred to the functional description of the corresponding functional module, and are not described herein again. The dielectric constant measuring apparatus 500 and the dielectric constant measuring apparatus 600 may each perform the dielectric constant measuring method shown in any one of fig. 3 to 7.
The present embodiment also provides a computer storage medium, where computer instructions are stored, and when the computer instructions are run on an electronic device, the electronic device is caused to execute the above related method steps to implement the operation method in the above embodiment.
The present embodiment also provides a computer program product, which when run on a computer causes the computer to execute the relevant steps described above to implement the dielectric constant measurement method in the above embodiments.
In addition, embodiments of the present application also provide an apparatus, which may be specifically a chip, a component or a module, and may include a processor and a memory connected to each other; the memory is used for storing computer execution instructions, and when the device runs, the processor can execute the computer execution instructions stored in the memory, so that the chip can execute the dielectric constant measurement method in the above method embodiments.
The electronic device, the computer storage medium, the computer program product, or the chip provided in this embodiment are all configured to execute the corresponding method provided above, so that the beneficial effects achieved by the electronic device, the computer storage medium, the computer program product, or the chip may refer to the beneficial effects in the corresponding method provided above, and are not described herein again.
Through the description of the above embodiments, those skilled in the art will understand that, for convenience and simplicity of description, only the division of the above functional modules is used as an example, and in practical applications, the above function distribution may be completed by different functional modules as needed, that is, the internal structure of the device may be divided into different functional modules to complete all or part of the above described functions.
In the several embodiments provided in the present application, it should be understood that the disclosed apparatus and method may be implemented in other ways. For example, the above-described embodiments of the apparatus are merely illustrative, and for example, a module or a unit may be divided into only one logic function, and may be implemented in other ways, for example, a plurality of units or components may be combined or integrated into another apparatus, or some features may be omitted, or not executed. In addition, the shown or discussed mutual coupling or direct coupling or communication connection may be an indirect coupling or communication connection through some interfaces, devices or units, and may be in an electrical, mechanical or other form.
Units described as separate parts may or may not be physically separate, and parts displayed as units may be one physical unit or a plurality of physical units, may be located in one place, or may be distributed to a plurality of different places. Some or all of the units can be selected according to actual needs to achieve the purpose of the solution of the embodiment.
In addition, functional units in the embodiments of the present application may be integrated into one processing unit, or each unit may exist alone physically, or two or more units are integrated into one unit. The integrated unit can be realized in a form of hardware, and can also be realized in a form of a software functional unit.
The integrated unit, if implemented in the form of a software functional unit and sold or used as a stand-alone product, may be stored in a readable storage medium. Based on such understanding, the technical solutions of the embodiments of the present application may be essentially or partially contributed to by the prior art, or all or part of the technical solutions may be embodied in the form of a software product, where the software product is stored in a storage medium and includes several instructions to enable a device (which may be a single chip, a chip, or the like) or a processor (processor) to execute all or part of the steps of the methods of the embodiments of the present application. And the aforementioned storage medium includes: various media capable of storing program codes, such as a usb disk, a removable hard disk, a Read Only Memory (ROM), a Random Access Memory (RAM), a magnetic disk, or an optical disk.
The above description is only for the specific embodiments of the present application, but the scope of the present application is not limited thereto, and any person skilled in the art can easily conceive of the changes or substitutions within the technical scope of the present application, and shall be covered by the scope of the present application. Therefore, the protection scope of the present application shall be subject to the protection scope of the claims.
Claims (10)
1. A dielectric constant measurement method, applied to a first apparatus, the method comprising:
measuring a first distance parameter between a first device and a second device by performing an ultra-wideband UWB signal transmission process with the second device, wherein a UWB signal is transmitted from the first device or the second device to the second device or the first device through air in the UWB signal transmission process;
measuring a second distance parameter between the first device and the second device by performing the UWB signal transmission process with the second device, wherein a UWB signal is transmitted from the first device or the second device to the second device or the first device through a material to be measured in the UWB signal transmission process;
and determining the dielectric constant of the material to be detected according to the first distance parameter, the second distance parameter and the length of the material to be detected.
2. The method of claim 1, wherein the UWB signaling process comprises a UWB signaling process corresponding to one-sided two-way ranging SS-TWR and/or a UWB signaling process corresponding to two-sided two-way ranging DS-TWR.
3. The method of claim 1 or 2, wherein said measuring a first distance parameter between said first device and a second device by performing an ultra-wideband UWB signaling process with said second device comprises:
obtaining a plurality of reference distance parameters between the first device and the second device by executing the UWB signal transmission process with the second device for a plurality of times;
determining the first distance parameter between the first device and a second device from the plurality of reference distance parameters.
4. The method of claim 3, wherein determining the first distance parameter between the first device and the second device from the plurality of reference distance parameters comprises:
screening a plurality of target reference distance parameters from the plurality of reference distance parameters;
when the number of the target reference distance parameters is an odd number, selecting a median of the target reference distance parameters as the first distance parameter;
when the number of the target reference distance parameters is an even number, determining the average value of the target reference distance parameters as the first distance parameter.
5. The method of any of claims 1-4, wherein when measuring said first distance parameter, the transmitting power of said UWB signal during said UWB signal transmission is a first transmitting power, and the receiving power of said UWB signal is a first receiving power; when the second distance parameter is measured, the transmitting power of the UWB signal in the UWB signal transmission process is a second transmitting power, and the receiving power of the UWB signal is a second receiving power; wherein the second transmission power is greater than the first transmission power, so that a difference between the second reception power and the first reception power is less than a preset threshold.
6. The method of any of claims 1-5, wherein determining the dielectric constant of the material to be tested from the first and second distance parameters and the length of the material to be tested comprises:
and calculating the dielectric constant of the material to be detected according to the first distance parameter, the second distance parameter and the length of the material to be detected by a first formula, wherein the first formula is as follows:
wherein D is1As said first distance parameter, D2Is the second distance parameter, L is the length of the material to be measured, epsilonrIs the dielectric constant of the material to be measured.
7. The method of any of claims 1-6, wherein the radiating surface of the first device is attached to a first surface of the material to be tested, and wherein the radiating surface of the second device is attached to a second surface of the material to be tested.
8. A dielectric constant measuring apparatus, applied to a first device, comprising a measuring unit and a determining unit, wherein:
the measuring unit is used for measuring a first distance parameter between the first device and a second device by executing an ultra-wideband UWB signal transmission process with the second device, wherein a UWB signal is transmitted to the second device or the first device by the first device or the second device through air in the UWB signal transmission process; and a second distance parameter measuring unit configured to measure a second distance parameter between the first device and the second device by performing the UWB signal transmission process with the second device, wherein a UWB signal is transmitted from the first device or the second device to the second device or the first device through a material to be measured in the UWB signal transmission process;
the determining unit is used for determining the dielectric constant of the material to be measured according to the first distance parameter, the second distance parameter and the length of the material to be measured.
9. An electronic device comprising a processor, a memory, a communication interface, and one or more programs stored in the memory and configured to be executed by the processor, the programs comprising instructions for performing the steps in the method of any of claims 1-7.
10. A computer-readable storage medium, characterized in that a computer program for electronic data exchange is stored, wherein the computer program causes a computer to perform the method according to any one of claims 1-7.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010978090.7A CN114264884B (en) | 2020-09-16 | 2020-09-16 | Dielectric constant measuring method and device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010978090.7A CN114264884B (en) | 2020-09-16 | 2020-09-16 | Dielectric constant measuring method and device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN114264884A true CN114264884A (en) | 2022-04-01 |
| CN114264884B CN114264884B (en) | 2023-11-10 |
Family
ID=80824479
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010978090.7A Active CN114264884B (en) | 2020-09-16 | 2020-09-16 | Dielectric constant measuring method and device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114264884B (en) |
Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20100305885A1 (en) * | 2009-05-27 | 2010-12-02 | Enraf B. V. | System and method for detecting adulteration of fuel or other material using wireless measurements |
| DE102009027666A1 (en) * | 2009-07-14 | 2011-01-20 | Robert Bosch Gmbh | UWB measuring device |
| CN101957404A (en) * | 2009-07-20 | 2011-01-26 | 中国科学院遥感应用研究所 | Microwave measurement method of dielectric constant of grain pile |
| CN102608133A (en) * | 2012-04-05 | 2012-07-25 | 王广生 | Substance component content evaluating instrument and method |
| CN104931797A (en) * | 2015-07-16 | 2015-09-23 | 上海无线电设备研究所 | Method for measuring dielectric constant of lossy medium based on wave-transparent mechanism |
| DE102015117205A1 (en) * | 2015-10-08 | 2017-04-13 | Finetek Co., Ltd. | Method for measuring the permittivity of a material |
| CN106990143A (en) * | 2017-02-16 | 2017-07-28 | 北京市道路工程质量监督站 | A kind of measuring method and system of asphalt dielectric constant |
| JP2018044948A (en) * | 2016-08-31 | 2018-03-22 | ローベルト ボッシュ ゲゼルシャフト ミット ベシュレンクテル ハフツング | Method and sensor device for determining dielectric constant and/or wetness of layer |
| CN108387888A (en) * | 2018-01-03 | 2018-08-10 | 北京科技大学 | A kind of near field ultra-broadband ranging method in medium |
| CN109884586A (en) * | 2019-03-07 | 2019-06-14 | 广东工业大学 | Unmanned plane localization method, device, system and storage medium based on ultra-wide band |
| CN110793979A (en) * | 2019-10-16 | 2020-02-14 | 中国科学院遥感与数字地球研究所 | Method and device for measuring wood density of standing tree |
-
2020
- 2020-09-16 CN CN202010978090.7A patent/CN114264884B/en active Active
Patent Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20100305885A1 (en) * | 2009-05-27 | 2010-12-02 | Enraf B. V. | System and method for detecting adulteration of fuel or other material using wireless measurements |
| DE102009027666A1 (en) * | 2009-07-14 | 2011-01-20 | Robert Bosch Gmbh | UWB measuring device |
| CN101957404A (en) * | 2009-07-20 | 2011-01-26 | 中国科学院遥感应用研究所 | Microwave measurement method of dielectric constant of grain pile |
| CN102608133A (en) * | 2012-04-05 | 2012-07-25 | 王广生 | Substance component content evaluating instrument and method |
| CN104931797A (en) * | 2015-07-16 | 2015-09-23 | 上海无线电设备研究所 | Method for measuring dielectric constant of lossy medium based on wave-transparent mechanism |
| DE102015117205A1 (en) * | 2015-10-08 | 2017-04-13 | Finetek Co., Ltd. | Method for measuring the permittivity of a material |
| JP2018044948A (en) * | 2016-08-31 | 2018-03-22 | ローベルト ボッシュ ゲゼルシャフト ミット ベシュレンクテル ハフツング | Method and sensor device for determining dielectric constant and/or wetness of layer |
| CN106990143A (en) * | 2017-02-16 | 2017-07-28 | 北京市道路工程质量监督站 | A kind of measuring method and system of asphalt dielectric constant |
| CN108387888A (en) * | 2018-01-03 | 2018-08-10 | 北京科技大学 | A kind of near field ultra-broadband ranging method in medium |
| CN109884586A (en) * | 2019-03-07 | 2019-06-14 | 广东工业大学 | Unmanned plane localization method, device, system and storage medium based on ultra-wide band |
| CN110793979A (en) * | 2019-10-16 | 2020-02-14 | 中国科学院遥感与数字地球研究所 | Method and device for measuring wood density of standing tree |
Also Published As
| Publication number | Publication date |
|---|---|
| CN114264884B (en) | 2023-11-10 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| WO2021213164A1 (en) | Application interface interaction method, electronic device, and computer readable storage medium | |
| CN113115439B (en) | Positioning method and related equipment | |
| CN111983559A (en) | Indoor positioning navigation method and device | |
| CN111835530B (en) | Group joining method and device | |
| WO2021218540A1 (en) | Antenna power adjustment method, terminal device and storage medium | |
| CN113676238B (en) | Arrival angle determining method and related product | |
| CN112637758B (en) | Equipment positioning method and related equipment thereof | |
| CN113115460B (en) | Time slot selection method and related equipment | |
| CN114090102B (en) | Method, device, electronic equipment and medium for starting application program | |
| CN114880251B (en) | Memory cell access method, memory cell access device and terminal equipment | |
| CN114384465A (en) | Azimuth angle determination method and device | |
| EP4395290A1 (en) | Bluetooth audio playback method, electronic device, and storage medium | |
| CN114006698B (en) | token refreshing method and device, electronic equipment and readable storage medium | |
| CN113610943B (en) | Icon rounded angle processing method and device | |
| CN114264884B (en) | Dielectric constant measuring method and device | |
| CN114172596A (en) | Channel noise detection method and related device | |
| CN115388845A (en) | Azimuth angle determination method and related product | |
| CN111982037B (en) | Height measuring method and electronic equipment | |
| CN114336998A (en) | Charging control method, charging control device and storage medium | |
| CN114339607B (en) | Ranging method, ranging device and storage medium | |
| CN113311380B (en) | Calibration method, device and storage medium | |
| CN116048772B (en) | Method and device for adjusting frequency of central processing unit and terminal equipment | |
| CN116048769B (en) | Memory recycling method and device and terminal equipment | |
| CN116027940B (en) | Screen capturing method, device and storage medium | |
| CN111459271B (en) | Gaze offset error determination method and device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |