CN115796204A - Monitoring and positioning system and monitoring and positioning method - Google Patents

Abstract

The invention provides a monitoring and positioning system and a monitoring and positioning method, wherein the system comprises: the first electronic tag is used for storing preset information, monitoring physical quantity information of the position where the first electronic tag is located, and determining a first frequency point based on the physical quantity information; and the radio frequency identification reader is in communication connection with the first electronic tag and is used for acquiring the physical quantity information and the preset information under the condition of working at the first frequency point, wherein the preset information comprises the position information of the first electronic tag.

Description

Monitoring and positioning system and monitoring and positioning method

Technical Field

The invention relates to the technical field of monitoring, in particular to a monitoring and positioning system and a monitoring and positioning method.

Background

With the rapid development of the information era, the full utilization of information not only requires reliable information acquisition, but also requires accurate information monitoring, and the sensor becomes a main way and means for acquiring information in the fields of nature monitoring and production. At present, when a sensor is adopted to acquire monitoring information, a circuit needs to be deployed or a power supply needs to be connected in advance to acquire the monitoring information. When the deployment position changes or is scattered, the functions of monitoring information and positioning the position of the measured point are difficult to realize at the same time.

Disclosure of Invention

The embodiment of the application provides a method and a device for determining a target utilization rate of new energy, and can solve the problem that in the prior art, acquisition of monitoring information and positioning of a monitoring point position are difficult to achieve simultaneously.

In order to solve the technical problem, the present application is implemented as follows:

in a first aspect, an embodiment of the present application provides a monitoring and positioning system, where the system includes:

the first electronic tag is used for storing preset information, monitoring physical quantity information of the position where the first electronic tag is located, and determining a first frequency point based on the physical quantity information;

and the radio frequency identification reader is in communication connection with the first electronic tag and is used for acquiring the physical quantity information and the preset information under the condition of working at the first frequency point, wherein the preset information comprises the position information of the first electronic tag.

Optionally, the first electronic tag includes a surface acoustic wave device and a second electronic tag, the surface acoustic wave device is connected to the second electronic tag, the surface acoustic wave device is configured to receive the physical quantity information and determine a first frequency point based on the physical quantity information, and the second electronic tag is configured to store the preset information.

Optionally, the radio frequency identification reader is further configured to write a second frequency point corresponding to the surface acoustic wave device and the preset information;

and the second frequency point is a frequency point corresponding to the initial physical quantity information of the position where the first electronic tag is located.

Optionally, the surface acoustic wave device is a passive device.

Optionally, the system further comprises: and the terminal is connected with the radio frequency identification reader through an optical fiber and is used for controlling the working frequency point of the radio frequency identification reader and acquiring the physical quantity information acquired by the radio frequency identification reader.

Optionally, the system includes at least one of the rfid readers, and the at least one rfid reader is connected to the terminal through an optical fiber, and the terminal controls the working frequency point of each rfid reader by using a time division multiplexing mechanism or a frequency division multiplexing mechanism.

Optionally, one said rfid reader is connected to at least one said first electronic tag.

Optionally, the system further includes a wireless relay device, and the rfid reader is connected to the first electronic tag through the wireless relay device.

Optionally, the system further includes a wireless relay device, and the rfid reader is connected to the first electronic tag through the wireless relay device.

In a second aspect, an embodiment of the present application further provides a monitoring and positioning method, where the method includes:

under the condition that a radio frequency identification reader works at a first frequency point, acquiring physical quantity information and preset information through the radio frequency identification reader, wherein the preset information comprises position information of a first electronic tag;

determining a location of the first electronic tag based on the location information, and associating the physical quantity information with the location.

In the embodiment of the application, the first electronic tag is used for storing the preset information, and the physical quantity information of the position where the first electronic tag is located is monitored. And then, a radio frequency identification reader is adopted to acquire a first frequency point corresponding to the physical quantity information monitored by the first electronic tag, and preset information in the first electronic tag is read at the same time, so that the radio frequency identification reader can acquire the physical quantity information monitored by the first electronic tag in real time and acquire preset information associated with the physical quantity information corresponding to the first frequency point. The embodiment can monitor the physical quantity information at the first electronic tag, and can acquire the preset information associated with the physical quantity information, so that the electronic tag can be conveniently installed on various measured points to accurately track the change of the measured points.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings needed to be used in the description of the embodiments of the present application will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without inventive exercise.

Fig. 1 is a schematic structural diagram of a monitoring and positioning system according to an embodiment of the present disclosure;

FIG. 2 is a graph of frequency versus temperature for an embodiment of the present application;

fig. 3 is a schematic structural diagram of the first electronic tag in fig. 1;

fig. 4 is a second schematic structural diagram of a monitoring and positioning system according to an embodiment of the present application;

fig. 5 is a third schematic structural diagram of a monitoring and positioning system according to an embodiment of the present application;

fig. 6 is a flowchart of a monitoring positioning method according to an embodiment of the present application.

Reference numerals

Monitoring the positioning system 10; a first electronic tag 11; a surface acoustic wave device 111; a second electronic tag 112; a radio frequency identification reader 12; a terminal 13; the wireless relay device 14.

Detailed Description

The technical solutions in the embodiments of the present application will be described clearly below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are some, but not all, embodiments of the present application. All other embodiments that can be derived by one of ordinary skill in the art from the embodiments given herein are intended to be within the scope of the present disclosure.

The terms first, second and the like in the description and in the claims of the present application are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It will be appreciated that the data so used may be interchanged under appropriate circumstances such that embodiments of the application may be practiced in sequences other than those illustrated or described herein, and that the terms "first," "second," and the like are generally used herein in a generic sense and do not limit the number of terms, e.g., the first term can be one or more than one. In addition, "and/or" in the specification and claims means at least one of connected objects, a character "/", and generally means that the former and latter related objects are in an "or" relationship.

A monitoring positioning system provided in the embodiments of the present application is described in detail below with reference to the accompanying drawings through specific embodiments and application scenarios thereof.

Referring to fig. 1, fig. 1 is a schematic structural diagram of a monitoring and positioning system according to an embodiment of the present disclosure, and as shown in fig. 1, the monitoring and positioning system 10 includes:

the first electronic tag 11 is used for storing preset information, monitoring physical quantity information of a position where the first electronic tag 11 is located, and determining a first frequency point based on the physical quantity information;

and the radio frequency identification reader 12 is in communication connection with the first electronic tag 11, and the radio frequency identification reader 12 is configured to acquire the physical quantity information and the preset information under the condition of working at the first frequency point, where the preset information includes the position information of the first electronic tag 11.

It should be noted that, the first electronic tag is an electronic tag capable of simultaneously storing preset information and monitoring physical quantity information of a position where the first electronic tag 11 is located. The preset information may include location information of the location where the first electronic tag is located, may include environmental information of the location where the first electronic tag monitors, and may include detailed information of an object measured by the first electronic tag 11. The physical quantity information obtained by the first electronic tag 11 is obtained at the position where the first electronic tag 11 is actually located, and specific position information may be stored in the first electronic tag 11 as preset information. Generally, the monitoring position of the first electronic tag 11 is not changed, and the physical quantity information, specifically the position information, of the monitored position is stored in the first electronic tag 11 and can be acquired in real time, so that the application effect of monitoring and positioning can be ensured to be exerted at the same time.

The first electronic tag 11 in this embodiment can be applied to the non-contact measurement field of the wireless passive power temperature measurement, the remote temperature, the strain and other sensitive quantities. The first electronic tag 11 may employ a surface acoustic wave sensor, and the first frequency point may be a frequency point corresponding to physical quantity information of a position where the sensor is located, which is measured by the sensor.

Specifically, the above-mentioned physical quantity information may include at least one of temperature, humidity, gas concentration, pressure, strain, and the like; at least one indicates that the number of the physical quantity information may be one or more, and the embodiment of the present invention does not limit the type and the number of the physical quantity information, and is specifically set according to actual requirements.

It should be understood that, the above-mentioned radio frequency identification reader 12 is connected with the first electronic tag 11 through communication, the radio frequency identification reader 12 can read the frequency point of the first electronic tag and the stored preset information, and the radio frequency identification reader 12 can have the same frequency as the first electronic tag 11 when the frequency point of the radio frequency identification reader 12 is the first frequency point. At this time, the preset information stored in the first electronic tag 11 can be read, and the corresponding physical quantity information can also be obtained based on the first frequency point, which may be determined based on a pre-established frequency-to-physical quantity variation curve.

Referring to fig. 2, fig. 2 is a curve of a change of a resonant frequency with temperature in an embodiment of the present application, and as shown in fig. 2, when the physical quantity information is temperature and the range of the first frequency point is 921 to 922.4MHz, the corresponding temperature information can be obtained through the change of the first frequency point.

The monitoring and positioning system 10 provided in the embodiment of the present application includes a first electronic tag 11 and a radio frequency identification reader 12, where the first electronic tag 11 monitors and determines a first frequency point, the radio frequency identification reader 12 reads the first frequency point and preset information of the first electronic tag 11, and meanwhile, the radio frequency identification reader 12 may determine the position of the first electronic tag 11 and physical quantity information of the position thereof based on the first frequency point. The first electronic tag 11 can be arranged at various measured points to accurately track changes of physical quantity information of the measured points, and the radio frequency identification reader 12 can simultaneously acquire the physical quantity information of the changes of the measured points and positions of the measured points based on the first electronic tag 11. Therefore, the physical quantity information of the measured point and the position of the measured point can be acquired at the same time without limitation.

Optionally, the first electronic tag 11 includes a surface acoustic wave device 111 and a second electronic tag 112, the surface acoustic wave device 111 is connected to the second electronic tag 112, the surface acoustic wave device 111 is configured to receive the physical quantity information and determine a first frequency point based on the physical quantity information, and the second electronic tag 112 is configured to store the preset information.

Referring to fig. 3, fig. 3 is a schematic structural diagram of the first electronic tag in fig. 1, and as shown in fig. 3, the first electronic tag 11 includes a surface acoustic wave device 111 and a second electronic tag 112, and the surface acoustic wave device and the second electronic tag are combined to form the first electronic tag 11, so that the electronic tag that satisfies the two functions of monitoring and positioning can be miniaturized in size, and the application range of the monitoring and positioning system 10 is expanded. Specifically, the size of the first electronic tag may be 20mm × 80mm, and the small area is widely applicable. Meanwhile, the second electronic tag has the characteristic of high sensitivity, the reading distance can reach 30 meters, the using amount of a radio frequency identification reader can be reduced, and the deployment cost of a monitoring and positioning system is reduced.

It is worth mentioning that the first electronic tag 11 in the present application includes a surface acoustic wave device, and the surface acoustic wave device 111 is a product based on an organic combination of surface wave theory in acoustics, piezoelectric research results, and microelectronics. Since the propagation speed of surface acoustic waves is one hundred thousand times slower than that of electromagnetic waves and sampling and processing are easy in its propagation path, surface acoustic waves are used to simulate various functions of electronics, enabling electronic devices to be miniaturized and made multifunctional. The surface acoustic wave device 111 in the present application may be two interdigital transducers fabricated on a piezoelectric substrate, and the interdigital transducers can form a metal pattern shaped like a finger cross of two hands on the surface of the piezoelectric substrate, and function as implementing acousto-electric transduction. The operation principle of the surface acoustic wave device 111 is that the input transducer converts an input electrical signal into an acoustic signal by an inverse piezoelectric effect, the acoustic signal propagates along the surface of the substrate, and finally the output transducer on the substrate converts the acoustic signal into an electrical signal for output. The entire surface acoustic wave device 111 is completed by performing various processes on an acoustic signal propagating on a piezoelectric substrate and utilizing the characteristics of an acoustoelectric transducer.

The first electronic tag further includes a second electronic tag 112, where the second electronic tag 112 adopts a non-contact automatic Identification technology, radio Frequency Identification (RFID), and can automatically identify a target object through a Radio Frequency signal and obtain related data. The second electronic tag 112 is composed of a coupling element and a chip, each tag has a unique electronic code, and can uniquely identify an identified object. The high-capacity second electronic tag 112 has a storage space that can be written by a user, and can be attached to an object to identify a target object. The second electronic tag can read or write the information of the identified object through the radio frequency identification reader, and can accurately manage each object in a plurality of managed objects, so that the error rate is reduced.

Specifically, the second electronic tag 112 may be a radio frequency identification chip with a read-write protection function, and data stored in advance in the chip can only be read or modified by authorized users and terminal readers. At present, radio frequency identification chips can be divided into two major categories, namely chips of passive technology and chips of active technology, and the embodiment of the application mainly relates to passive radio frequency identification chips. The second electronic tag can obtain energy required by work in a magnetic field generated by the radio frequency identification reader, is low in cost, has a long service life, is smaller and lighter than an active tag, and is closer in reading and writing distance.

In this embodiment, the rfid reader obtains the preset information and the first frequency point stored in the first electronic tag, based on the second electronic tag in the first electronic tag, and the second electronic tag and the rfid reader can realize contactless coupling in the rf signal space through the coupling element. Energy transfer and data exchange can be realized in the coupling channel according to the time sequence relation.

It should be understood that the surface acoustic wave device can sense the change of the physical quantity information and influence the resonant motion to change the frequency point of the surface acoustic wave device. The first electronic tag with the unique electronic code is designed by combining the surface acoustic wave technology and the passive radio frequency identification tag technology, and meanwhile, the first electronic tag can be conveniently installed on various measured points by utilizing the characteristic of high frequency precision of a surface acoustic wave device when physical quantity information changes, so that the change condition of the physical quantity information of the measured points can be accurately tracked and positioned.

For example, in the system, the determination of the first frequency point based on the physical quantity information may be based on a surface acoustic wave device 111 in the first electronic tag, where the surface acoustic wave device 111 includes a resonator and is capable of converting the physical quantity information into an acoustic signal and then forming resonance. Taking monitoring temperature as an example, the surface acoustic wave device 111 can sense temperature changes, and the cross energy exchanger on the piezoelectric crystal substrate in the surface acoustic wave device 111 can convert a wireless signal represented by input physical quantity information into an acoustic signal through an inverse piezoelectric effect, and then form resonance through reflection of a left periodic grating and a right periodic grating in the surface acoustic wave device 111. When the temperature changes, the surface acoustic wave device 111 in the first electronic tag 11 can sense the temperature change in the surrounding environment, and the first frequency point of the first electronic tag 11 can be affected by the resonance effect. Taking the concentration of the monitoring gas as an example, the surface acoustic wave device 111 can also realize the monitoring of the gas characteristics during the design, and can coat a gas-sensitive film for selectively adsorbing gas on the surface of the piezoelectric crystal, when the gas-sensitive film interacts with the gas to be detected, the interaction can be chemical action, biological action or physical adsorption, so that when the film quality and the conductivity of the gas-sensitive film change, the surface acoustic wave frequency of the piezoelectric crystal drifts. The change of the surface acoustic wave frequency can be caused by different gas concentrations, different film quality and different conductivity change degrees, so that the first electronic tag 11 can monitor the gas characteristics. Therefore, the specific physical quantity information and the position of the measured point can be accurately acquired.

Optionally, the radio frequency identification reader 12 is further configured to write a second frequency point corresponding to the surface acoustic wave device 111 and the preset information;

the second frequency point is a frequency point corresponding to the initial physical quantity information of the position where the first electronic tag 11 is located.

In a specific embodiment of the present application, the first electronic tag 11 may be contactlessly coupled with the rfid reader 12 through a coupling element in a radio frequency signal space. Energy transfer and data exchange can be realized in the coupling channel according to the time sequence relation. Before the first electronic tag 11 is put into a monitoring point for monitoring, initial physical quantity information of the monitoring point can be obtained first and written into the surface acoustic wave device 111 by using the radio frequency identification reader 12, wherein the initial physical quantity information corresponds to the second frequency point. When the physical quantity information of the monitoring point changes, the surface acoustic wave device monitors the change, and the second frequency point changes to form the first frequency point. Meanwhile, when the initial physical quantity information is written in the first electronic tag, relevant preset information such as position information of the measured point and the like can be written, and the preset information can also be written in real time according to actual needs.

Optionally, the saw device 111 is a passive device.

In a specific embodiment of the present application, the surface acoustic wave device 111 is a passive device, and can read the change of the physical quantity information and present the change in the form of the first frequency point. The surface acoustic wave device 111 and the second electronic tag 112 in the first electronic tag 11 are passive and can be free from the limitation of a power supply. When the monitoring environment is not suitable for being connected with a power supply and a line, the monitoring and positioning effects can be guaranteed not to be affected, the method can be widely applied to various monitoring environments, the first electronic tag 11 is convenient to install, and meanwhile, the change of the physical quantity information of the measured point is easy to track.

Optionally, the system further comprises: and the terminal 13 is connected with the radio frequency identification reader 12 through an optical fiber, and the terminal 13 is used for controlling the working frequency point of the radio frequency identification reader 12 and acquiring the physical quantity information acquired by the radio frequency identification reader 12.

Referring to fig. 4, fig. 4 is a second schematic structural diagram of a monitoring and positioning system provided in an embodiment of the present application, as shown in fig. 4, the monitoring and positioning system 10 in the above embodiment further includes a terminal 13, the terminal 13 and the radio frequency identification reader 12 may be connected by an optical fiber, and the physical quantity information read by the radio frequency identification reader 12 and the position information of the position of the first electronic tag 11, where the physical quantity information is obtained, may be transmitted to the terminal 13. The terminal 13 may also obtain a working frequency point at which the rfid reader 12 is consistent with the first frequency point, and determine the physical quantity information corresponding to the working frequency point based on the corresponding curve of the frequency and the physical quantity information in the above embodiment.

It should be understood that, when the working frequency of the rfid reader 12 is consistent with the first frequency of the first electronic tag 11, the rfid reader 12 can read the preset information of the first electronic tag 11, which objectively implements the function of the band pass filter, and can reduce the interference of the newly deployed first electronic tag 11 on other communication frequencies under the condition of high requirement on frequency interference in a telecommunication room or the like. Meanwhile, the change of the resonant frequency in the first electronic tag 11 can be changed along with the change of the physical quantity information through impedance matching and the like during design, and a linear relation can be presented in a range of certain physical quantity information.

Optionally, the system includes at least one of the rfid readers 12, the at least one rfid reader 12 is connected to the terminal 13 through an optical fiber, and the terminal 13 controls the working frequency point of each rfid reader 12 by using a time division multiplexing mechanism or a frequency division multiplexing mechanism.

In another specific embodiment of the present application, the monitoring and positioning system 10 may include a plurality of rfid readers 12, the rfid readers 12 may be connected by optical fibers, and the terminal 13 controls each rfid reader 12 by using a time division multiplexing scheme or a frequency division multiplexing scheme. Specifically, the time division multiplexing mechanism may be configured to control different working frequency points of each rfid reader 12 at different time intervals, so as to achieve the purpose of multiplexing. Time division multiplexing uses time as a parameter for signal division, and therefore, it is necessary to prevent signals from overlapping each other on the time axis. The plurality of radio frequency identification readers 12 can be controlled simultaneously by adopting a time division multiplexing mechanism or a frequency division multiplexing mechanism, so that the effect of monitoring the physical quantity information of the plurality of measured points by the monitoring and positioning system 10 in real time and on line can be achieved.

Optionally, one of the rfid readers 12 is connected to at least one of the first electronic tags 11.

It should be understood that the embodiment of the present application can be widely applied to various scenes that need to be monitored and located, a plurality of first electronic tags 11 may be set, and one radio frequency identification reader 12 may read frequency points and preset information of the plurality of first electronic tags 11. More first electronic tags 11 may be provided, and a plurality of rfid readers 12 may correspond to a part of the first electronic tags 11. Optionally, the monitoring and positioning system 10 further includes a wireless relay device 14, through which the rfid reader 12 is connected to the first electronic tag. Therefore, effective monitoring of a large-range monitoring environment can be achieved through actual operation of the plurality of first electronic tags 11 and the plurality of radio frequency identification readers 12, and changes of physical quantity information can be accurately monitored and located.

Optionally, the monitoring and positioning system 10 further includes a wireless relay device 14, and the radio frequency identification reader 12 is connected to the first electronic tag 11 through the wireless relay device 14.

Referring to fig. 5, fig. 5 is a third schematic structural diagram of a monitoring and positioning system according to an embodiment of the present disclosure, as shown in fig. 5, the monitoring and positioning system 10 further includes a wireless relay device 14, and the radio frequency identification reader 12 is connected to the first electronic tag 11 through the wireless relay device 14. Based on the above wireless relay device 14, the rfid readers 12 and the first electronic tags 11 can be connected to each other through the wireless relay device 14 in an occasion where the distance is too long or there is an obstacle in the middle, and the security performance is good, and each rfid reader 12 can correspond to the first electronic tags 11 of multiple detection points, and can be used in a plug-and-play manner, thereby facilitating the expansion of the scale of the monitoring and positioning system 10 and facilitating the upgrade of the monitoring and positioning system 10. Meanwhile, the rfid reader 12 may transmit the preset information acquired through the wireless relay device 14 to the terminal through an optical fiber, so that long-distance transmission may be achieved, and the first frequency point and the preset information may be transmitted more accurately and stably.

Referring to fig. 6, fig. 6 is a flowchart of a monitoring and positioning method according to an embodiment of the present application, and as shown in fig. 6, the method includes the following steps:

step 21, under the condition that the radio frequency identification reader 12 works at a first frequency point, acquiring physical quantity information and preset information through the radio frequency identification reader 12, wherein the preset information comprises position information of the first electronic tag 11;

step 22, determining the position of the first electronic tag 11 based on the position information, and associating the physical quantity information with the position.

In a specific embodiment of the present application, the first electronic tag 11 is disposed at a measured point for monitoring and positioning, and when a working frequency point of the radio frequency identification reader 12 is a first frequency point, physical quantity information and preset information of the first electronic tag 11 can be obtained, effective monitoring of the physical quantity information and the position of the measured point can be simultaneously achieved, the association degree is higher, and the change of the physical quantity information of the measured point can be accurately tracked without being limited by the position.

The monitoring and positioning method provided in the embodiment of the present application can implement each process implemented by the monitoring and positioning system 10 in fig. 1, and is not described herein again to avoid repetition.

In the description herein, references to the description of the term "one embodiment," "some embodiments," "illustrative embodiments," "preferred embodiments," "detailed description," or "preferred embodiments" or the like, mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

While the foregoing is directed to the preferred embodiment of the present invention, it will be understood by those skilled in the art that various changes and modifications may be made without departing from the spirit and scope of the invention as defined in the appended claims.

Claims (9)

1. A surveillance positioning system, comprising:

the first electronic tag is used for storing preset information, monitoring physical quantity information of the position where the first electronic tag is located, and determining a first frequency point based on the physical quantity information;

and the radio frequency identification reader is in communication connection with the first electronic tag, and is used for acquiring the physical quantity information and the preset information under the condition of working at the first frequency point, wherein the preset information comprises the position information of the first electronic tag.

2. The system according to claim 1, wherein the first electronic tag includes a surface acoustic wave device and a second electronic tag, the surface acoustic wave device is connected to the second electronic tag, the surface acoustic wave device is configured to receive the physical quantity information and determine a first frequency point based on the physical quantity information, and the second electronic tag is configured to store the preset information.

3. The system of claim 2, wherein the rfid reader is further configured to write a second frequency point corresponding to the saw device and the preset information;

and the second frequency point is a frequency point corresponding to the initial physical quantity information of the position where the first electronic tag is located.

4. The system of claim 2, wherein the surface acoustic wave device is a passive device.

5. The system of claim 1, further comprising: and the terminal is connected with the radio frequency identification reader through an optical fiber and is used for controlling the working frequency point of the radio frequency identification reader and acquiring the physical quantity information acquired by the radio frequency identification reader.

6. The system according to claim 5, wherein the system comprises at least one of the rfid readers, the at least one of the rfid readers is connected to the terminal through an optical fiber, and the terminal controls the operating frequency of each of the rfid readers by using a time division multiplexing scheme or a frequency division multiplexing scheme.

7. The system of claim 6, wherein one of said radio frequency identification readers is coupled to at least one of said first electronic tags.

8. The system of claim 1, further comprising a wireless relay device, wherein the radio frequency identification reader is coupled to the first electronic tag through the wireless relay device.

9. A method for monitoring a position, comprising:

under the condition that a radio frequency identification reader works at a first frequency point, physical quantity information and preset information are obtained through the radio frequency identification reader, wherein the preset information comprises position information of a first electronic tag;

determining a location of the first electronic tag based on the location information, and associating the physical quantity information with the location.

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