WO2022000477A1

WO2022000477A1 - Wireless communication method, device, and system

Info

Publication number: WO2022000477A1
Application number: PCT/CN2020/100169
Authority: WO
Inventors: 邵帅
Original assignee: Oppo广东移动通信有限公司
Priority date: 2020-07-03
Filing date: 2020-07-03
Publication date: 2022-01-06
Also published as: CN115349126A

Abstract

Provided are a wireless communication method, a device, and a system. The method is applied to a sensor comprising two labels, the two labels being respectively arranged on a fixed assembly and a moving assembly, and the method comprises: a sensor receiving continuous waves sent by a controller; and the sensor sending respective backscatter signals of two labels to the controller in a backscattering manner, so that the controller determines, according to the respective backscatter signals of the two labels, the opening/closing state of a structure comprising a fixed assembly and a moving assembly, and thus, the obtained opening/closing state of a structure such as a door and a window is more accurate.

Description

Wireless communication method, device and system

technical field

The embodiments of the present application relate to the field of communications, and more particularly, to wireless communication methods, devices, and systems.

Background technique

With the rise of The Internet of Things (IOT), IOT security equipment is gradually accepted by consumers. Among them, the switch monitoring of doors and windows is the most frequently used. Such devices are used to monitor whether doors and windows are closed or opened, thereby triggering alarms or communicating the opening and closing status of doors and windows to users.

In the prior art, this switch monitoring device includes two sensors, which are respectively arranged at positions corresponding to the door frame and the door panel. When the door or window is opened, the relative position of the two sensors changes, which triggers an alarm or transmits the opening and closing status of the door or window to the user. However, the positioning function of the sensor is not necessarily accurate, resulting in lower accuracy of the obtained opening and closing states of the doors and windows.

SUMMARY OF THE INVENTION

The embodiments of the present application provide a wireless communication method, device, and system, so that the obtained opening and closing states of structures such as doors and windows are more accurate.

In a first aspect, a wireless communication method is provided, including: the method is applied to a sensor including two tags, the two tags are respectively arranged on a fixed component and a mobile component, the method includes: the sensor receives a continuous wave sent by a controller; the sensor The respective backscattered signals of the two tags are sent to the controller by means of backscattering, so that the controller determines the opening and closing states of the structure including the fixed component and the moving component according to the respective backscattered signals of the two labels.

In a second aspect, a wireless communication method is provided, comprising: applying the method to a controller, the method comprising: the controller sends a continuous wave; the controller receives two data sent by a sensor in a backscattering manner The respective backscattered signals of the labels, wherein the sensor includes the two labels, and the two labels are respectively arranged on the fixed component and the moving component; the controller is based on the respective backscattered signals of the two labels The signal determines the opening and closing state of the structure including the stationary and moving components.

In a third aspect, a wireless communication method is provided, including: the method is applied to a sensor including two tags, the two tags are respectively disposed on a fixed component and a mobile component, a first of the two tags is The label is provided with a light-emitting unit, and the second label is provided with a photosensitive unit, a chip and an antenna. The method includes: the light-emitting unit of the first label generates emitted light; the photosensitive unit of the second label senses the emitted light ; the chip of the second tag obtains the sensing information; the antenna of the second tag sends the sensing information to the controller, so that the controller determines the structure including the fixed component and the moving component according to the sensing information the opening and closing state.

In a fourth aspect, a wireless communication method is provided, comprising: applying the method to a controller, the method comprising: the controller receiving sensing information sent by an antenna of a second tag; the controller according to the sensing information The information determines the opening and closing state of the structure including the fixed component and the moving component; wherein, the sensor includes two labels, the two labels are respectively arranged on the fixed component and the moving component, and the No. 1 label of the two labels A label is provided with a light-emitting unit, the second label is provided with a photosensitive unit, a chip and an antenna, the light-emitting unit of the first label is used to generate emitted light; the photosensitive unit of the second label senses the emitted light , the chip of the second tag is used to obtain the sensing information.

In a fifth aspect, a sensor is provided, comprising two labels, the two labels are respectively disposed on the fixed component and the mobile component, each of the labels includes an antenna and a chip, and for any one of the labels: the antenna The chip is used to receive the continuous wave sent by the controller; the chip is used to generate a backscattered signal; the antenna is also used to send the backscattered signal to the controller by means of backscattering, so that the control The device determines the opening and closing states of the structure including the fixed component and the moving component according to the respective backscattered signals of the two tags.

In a sixth aspect, a controller is provided, the controller is used for: sending continuous waves; receiving backscattered signals of two tags respectively sent by a sensor in a backscattering manner, wherein the sensor includes the two tags Labels, the two labels are respectively arranged on the fixed component and the moving component; according to the respective backscattered signals of the two labels, the opening and closing states of the structure including the fixed component and the moving component are determined.

In a seventh aspect, a sensor is provided, comprising two labels, the two labels are respectively disposed on the fixed component and the moving component, a first label of the two labels is provided with a light-emitting unit, and the second label includes : antenna, chip and photosensitive unit; the light-emitting unit of the first label is used to generate emitted light; the photosensitive unit of the second label is used to sense the emitted light; the chip of the second label is used to obtain sensing information ; the antenna of the second tag is used for sending the sensing information to the controller, so that the controller determines the opening and closing state of the structure including the fixed component and the moving component according to the sensing information.

In an eighth aspect, a controller is provided, the controller is configured to: receive sensing information sent by an antenna of a second tag of a sensor; determine an opening and closing state of a structure including a fixed component and a moving component according to the sensing information; wherein , the sensor includes two labels, the two labels are respectively arranged on the fixed component and the moving component, a light-emitting unit is arranged on the first label of the two labels, and a light-emitting unit is arranged on the second label A photosensitive unit, a chip and an antenna, the light-emitting unit of the first tag is used for generating emitted light; the photosensitive unit of the second tag senses the emitted light, and the chip of the second tag is used to obtain the sensing information.

In a ninth aspect, a wireless communication system is provided, comprising: the sensor according to the fifth aspect and the controller according to the sixth aspect.

In a tenth aspect, a wireless communication system is provided, comprising: the sensor according to the seventh aspect and the controller according to the eighth aspect.

In an eleventh aspect, an apparatus is provided for implementing the method in any one of the above-mentioned first and third aspects or their respective implementations.

Specifically, the apparatus includes: a processor for calling and running a computer program from a memory, so that a device installed with the apparatus executes the method in any of the first and third aspects or their respective implementations.

A twelfth aspect provides a computer-readable storage medium for storing a computer program, the computer program causing a computer to execute the method in any one of the above-mentioned first to fourth aspects or the respective implementations thereof.

According to a thirteenth aspect, a computer program product is provided, comprising computer program instructions, the computer program instructions cause a computer to execute the method in any one of the above-mentioned first to fourth aspects or the implementations thereof.

A fourteenth aspect provides a computer program which, when run on a computer, causes the computer to perform the method of any one of the above-mentioned first to fourth aspects or implementations thereof.

Through the above technical solution, it is not necessary to rely on the positioning function of the sensor to determine the opening and closing state of the structure, but the sensor sends the respective backscattering signals of the two tags to the controller through the backscattering method, and the controller according to the respective backscattering signals of the two tags The backscattered signal determines the open and closed states of the structure including the stationary and moving components. Usually, the function of the controller is stronger than that of the sensor. Based on this, the opening and closing state of the structure determined by the controller is more accurate than the opening and closing state of the combination determined by the sensor through the positioning function. Further, the sensor can also convert CW energy into DC energy to supply power to the sensor, so that the sensor does not need to carry a battery. Reduce the later maintenance cost of the above structure.

Description of drawings

FIG. 1 is a schematic diagram of the architecture of a communication system provided by an embodiment of the present application;

FIG. 2 is a schematic diagram of the architecture of another communication system provided by an embodiment of the present application;

FIG. 3 is a schematic flowchart of a wireless communication method 300 according to an embodiment of the present application;

FIG. 4 is a schematic diagram of the relative position of the label provided by the embodiment of the present application;

FIG. 5 is a schematic diagram of a data structure of a backscattered signal according to an embodiment of the present application;

FIG. 6 is a schematic flowchart of a wireless communication method 600 according to an embodiment of the present application;

7 is a schematic diagram of a data structure of a backscattered signal according to an embodiment of the present application;

FIG. 8 shows a schematic diagram of a sensor 800 according to an embodiment of the present application;

FIG. 9 shows a schematic diagram of a label 900 according to an embodiment of the present application;

FIG. 10 shows a schematic block diagram of a chip 1000 according to an embodiment of the present application;

FIG. 11 shows a schematic diagram of a sensor 1100 according to an embodiment of the present application;

FIG. 12 shows a schematic block diagram of a first tag 1200 according to an embodiment of the present application;

FIG. 13 shows a schematic block diagram of a second tag 1300 according to an embodiment of the present application;

FIG. 14 is a schematic structural diagram of an apparatus according to an embodiment of the present application;

FIG. 15 is a schematic block diagram of a communication system 1500 provided by an embodiment of the present application.

detailed description

The technical solutions in the embodiments of the present application will be described below with reference to the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, not all of the embodiments. With regard to the embodiments in the present application, all other embodiments obtained by persons of ordinary skill in the art without creative efforts shall fall within the protection scope of the present application.

As mentioned above, in the prior art, the switch monitoring device includes two sensors, which are respectively arranged at positions corresponding to the door frame and the door panel. When a door or window is opened, the relative position of the two sensors changes, triggering an alarm or relaying this information to the user. However, the positioning function of the sensor is not necessarily accurate, resulting in lower accuracy of the obtained opening and closing states of the doors and windows.

In order to solve the above technical problem, the present application solves the above technical problem by judging the opening and closing state of the door or window according to the backscatter information of the sensor.

Exemplarily, the following describes the architecture of the communication system in this application with reference to FIG. 1 and FIG. 2 .

FIG. 1 is a schematic structural diagram of a communication system according to an embodiment of the present application. As shown in FIG. 1 , it includes a sensor 110 , a controller 120 and a terminal device 130 , and both the sensor 110 and the terminal device 130 can perform wireless communication with the controller 120 . Optionally, the communication system may include multiple sensors 110, multiple controllers 120, and multiple terminal devices 130. The embodiments of the present application do not limit the number of sensors, the number of controllers, and the number of terminal devices.

FIG. 2 is a schematic structural diagram of another communication system provided by an embodiment of the present application. As shown in FIG. 2 , it includes: a sensor 210 , a controller 220 , a cloud server 230 and a terminal device 240 , the controller 220 can communicate wirelessly with the sensor 210 and the cloud server 230 , and the cloud server 230 can also communicate with the terminal device 240 wireless communication between them. Optionally, the communication system may include multiple sensors 210, multiple controllers 220, multiple cloud servers 230, and multiple terminal devices 240. In this embodiment of the present application, the number of sensors, the number of controllers, the cloud servers, and the terminals The number of devices is not limited.

Optionally, the wireless communication systems shown in FIG. 1 and FIG. 2 may also include other network entities such as a mobility management entity (Mobility Management Entity, MME), an access and mobility management function (Access and Mobility Management Function, AMF) and the like , which is not limited in the embodiments of the present application.

In this application, the controller undertakes the role of a bridge between the sensor and the terminal device, so the controller can also be called a bridge. Optionally, in this application, the controller may be an integrated smart speaker, or a smart customer terminal equipment (Customer Premise Equipment, CPE).

Optionally, in this application, terminal equipment may also be referred to as user equipment (User Equipment, UE), access terminal, subscriber unit, subscriber station, mobile station, mobile station, remote station, remote terminal, mobile device, user Terminal, terminal, wireless communication device, user agent or user equipment, etc. The terminal device can be a station (STAION, ST) in a wireless local area network (Wireless Local Area Networks, WLAN), can be a cellular phone, a cordless phone, a Session Initiation Protocol (Session Initiation Protocol, SIP) phone, a wireless local loop (Wireless Local Loop) Loop, WLL) stations, Personal Digital Assistant (PDA) devices, handheld devices with wireless communication capabilities, computing devices or other processing devices connected to wireless modems, in-vehicle devices, wearable devices, and next-generation communication systems, For example, a terminal device in an NR network or a terminal device in a future evolved Public Land Mobile Network (Public Land Mobile Network, PLMN) network, etc.

In this embodiment of the present application, the terminal device can be deployed on land, including indoor or outdoor, handheld, wearable, or vehicle-mounted; it can also be deployed on water (such as ships, etc.); it can also be deployed in the air (such as airplanes, balloons, and satellites) superior).

In this embodiment of the present application, the terminal device may be a mobile phone (mobile phone), a tablet computer (Pad), a computer with a wireless transceiver function, a virtual reality (virtual reality, VR for short) terminal device, an augmented reality (AR for short) ) terminal equipment, wireless terminal in industrial control, in-vehicle terminal equipment, wireless terminal in self driving, wireless terminal equipment in remote medical, smart grid wireless terminal equipment, wireless terminal equipment in transportation safety, wireless terminal equipment in smart city, wireless terminal equipment in smart home, wearable terminal equipment, etc. The terminal equipment involved in the embodiments of this application may also be referred to as terminal, user equipment (UE), access terminal equipment, vehicle-mounted terminal, industrial control terminal, UE unit, UE station, mobile station, mobile station, and remote station , remote terminal equipment, mobile equipment, UE terminal equipment, wireless communication equipment, UE proxy or UE device, etc. Terminal devices can also be stationary or mobile.

As an example and not a limitation, in this embodiment of the present application, the terminal device may also be a wearable device. Wearable devices can also be called wearable smart devices, which are the general term for the intelligent design of daily wear and the development of wearable devices using wearable technology, such as glasses, gloves, watches, clothing and shoes. A wearable device is a portable device that is worn directly on the body or integrated into the user's clothing or accessories. Wearable device is not only a hardware device, but also realizes powerful functions through software support, data interaction, and cloud interaction. In a broad sense, wearable smart devices include full-featured, large-scale, complete or partial functions without relying on smart phones, such as smart watches or smart glasses, and only focus on a certain type of application function, which needs to cooperate with other devices such as smart phones. Use, such as all kinds of smart bracelets, smart jewelry, etc. for physical sign monitoring.

It should be understood that the terms "system" and "network" are often used interchangeably herein. The term "and/or" herein is used to describe the association relationship of associated objects, for example, it means that there can be three relationships between the associated objects before and after, for example, A and/or B can mean: A alone exists, A and B exist simultaneously, There are three cases of B alone. The character "/" in this document generally indicates that the related objects are "or".

It should be understood that the "instruction" mentioned in the embodiments of the present application may be a direct instruction, an indirect instruction, or an associated relationship. For example, if A indicates B, it can indicate that A directly indicates B, for example, B can be obtained through A; it can also indicate that A indicates B indirectly, such as A indicates C, and B can be obtained through C; it can also indicate that there is an association between A and B relation.

The technical solutions of the present application are described in detail below through specific embodiments.

FIG. 3 is a schematic flowchart of a wireless communication method 300 according to an embodiment of the present application, and the method 300 may be applied to the communication system shown in FIG. 1 or FIG. 2 . Specifically, as shown in FIG. 3 , the method 300 may include the following steps:

Step S310: The controller sends a continuous wave (Continuous Wave, CW).

Step S320: The sensor sends the respective backscattered signals of the two tags to the controller by means of backscattering.

Step S330: The controller determines the opening and closing states of the structure including the fixed component and the moving component according to the respective backscattered signals of the two tags.

Optionally, the transmission duration of the CW can be set on the controller, and the transmission duration can be determined according to the specific application of the CW. Wherein, specific applications of CW include, but are not limited to, being used for enabling the sensor to send backscattered signals by means of backscattering, for supplying power to the sensor, and the like.

Optionally, the controller may send control information to the sensor to instruct the sensor to send the respective backscattered signals of the two tags. Of course, the controller may also not send control information to the sensor, that is, no control information is required to trigger the sensor to send the respective backscattered signals of the two tags.

Optionally, when the controller sends control information to the sensor, the control information includes an identifier of the sensor, so that the sensor can know that the controller needs the sensor to send backscattered signals according to the identifier.

Optionally, the control information is carried in the search information sent by the controller, and the search information may further include: the frequency of the CW sent by the controller.

Optionally, the transmission duration of the search information may be set on the controller, and the transmission duration may also be determined according to the specific application of the search information.

Optionally, the sensor in the communication system includes: two labels, and the two labels are respectively arranged on the fixed component and the moving component. For example: two labels are placed on the door frame and door panel, respectively, or two labels are placed on the window frame and window glass, respectively.

Optionally, the two labels of the sensor are installed at horizontally equivalent positions, that is, the two labels are installed at the same horizontal position, as shown in FIG. 4 . Alternatively, the two labels of the sensor are mounted in vertically equivalent positions, ie both labels are mounted in the same vertical position.

Wherein, the two labels cannot overlap, optionally, the distance between the two labels is the minimum distance in the actual installation environment.

It should be noted that the present application does not limit the positions of the two labels.

Optionally, the two tags of the sensor are zero-power tags, so the sensor is also called a zero-power sensor.

Optionally, the backscattered signal for each tag includes the tag's identity.

Optionally, each tag has an independent individual identification (Individual Identification, IID), and the IID of each tag is represented by an access address (Access Address) of the tag and an identifier of the sensor.

Optionally, the backscattered signal of each tag further includes: a preamble (Preamble) and/or a Cyclic Redundancy Check (CRC) of the backscattered signal.

Exemplarily, FIG. 5 is a schematic diagram of a data structure of a backscattered signal provided by an embodiment of the application. As shown in FIG. 5 , the backscattered signal includes an 8-bit preamble, a 32-bit access address, a 16-bit 312bit protocol data unit (Protocol Data Unit, PDU) and 24bit CRC. Among them, the IID of each tag is represented by the 32bit access address and the 8bit sensor identifier in the PDU, that is, the length of the IID=32bit+8bit. Among them, the identification of the sensor is also called the group identification (Group Identification, GID). According to the above content, the IIDs of the two tags in the sensor contain the same GID.

It should be noted that the length of the above GID is not limited to 8 bits, and can be extended, for example, 16 bits. Similarly, the length of the IID of the tag is not limited to 40 bits, and it can be extended, for example, it can be 48 bits.

In a word, as mentioned above, the backscattered signal of each tag includes: the IID of the tag. Based on this, after the controller receives the backscattered signal, it can know which tag the backscattered signal comes from according to the IID. .

Optionally, the above method further includes: the sensor converts CW energy into DC energy to supply power to the sensor.

The following describes step S330 in detail:

FIG. 5 is a flowchart of a method for judging the opening and closing state of a structure provided by an embodiment of the present application. As shown in FIG. 5 , the method includes the following steps:

Step S510: The controller acquires the received signal strength indication (Received Signal Strength Indication, RSSI) and phase information of the respective backscattered signals of the two tags.

Step S520: The controller determines the opening and closing states of the structure according to the RSSI and phase information of the respective backscattered signals of the two tags.

Step S510 is described as follows:

After the controller receives the backscattered signal, the controller can obtain RSSI and phase information of the backscattered signal, wherein both the RSSI and phase information of the backscattered signal are related to the distance between the tag and the controller. Specifically, the RSSI of any backscattered signal can be obtained by the following formula (1):

in,

is the energy of the backscattered signal, that is, the RSSI of the backscattered signal,

is the energy of the CW transmitted by the controller, that is, the RSSI of the CW, and G _rd is the antenna gain of the controller transmitting and receiving. G _tag is the gain of the tag that emits backscattered signals, λ is the wavelength of CW, Γ _i is the impedance matching coefficient of the tag that emits backscattered signals, and R is the relative distance between the controller and the tag that emits backscattered signals. It can be seen that, under the condition that all other coefficients do not change,

A relationship can be established with R, that is, the variation of R will affect the variation of the RSSI of the backscattered signal.

The phase information of any backscattered signal can be obtained by the following formula (2):

in

is the phase information of the backscattered signal, R is the relative distance between the controller and the label that emits the backscattered signal, c is the speed of light, f is the frequency of CW,

is the initial phase of the backscattered signal, which is due to the hardware construction of the tag itself. It can be seen that when all other coefficients remain unchanged,

A relationship can be established with R, that is, the change of R will affect the change of the phase information of the backscattered signal.

Step S520 is described as follows:

Optionally, the respective backscattered signals of the two tags include: the respective backscattered signals of the two tags at a first time and the respective backscattered signals of the two tags at a second time, the second time being earlier than the first time time. Based on this, there are at least the following two optional modes in step S520:

Optional way 1: The controller determines the first value according to the RSSI of the backscattered signal at the first time and the RSSI of the backscattered signal at the second time, respectively, of the two tags. The controller determines the second value according to the phase information of the backscattered signals at the first time and the phase information of the backscattered signals at the second time, respectively, of the two tags. The controller determines the third value based on the first value and the second value. The controller determines the opening and closing state of the structure according to the relationship between the third value and the preset threshold.

Optional way 2: Before step S502, the above method further includes: the controller acquires the RSSI and phase information of the respective backscattered signals of the two tags when the structure is in a closed state. Correspondingly, step S502 includes: the controller determines the structure according to the RSSI and phase information of the respective backscattered signals of the two tags, and, when the structure is in a closed state, the RSSI and phase information of the respective backscattered signals of the two tags the opening and closing state.

The following is a detailed description of option 1:

Optionally, the controller determines the first value through the following formula (3):

Among them, A represents the first value, a ₁ , a ₂ and a ₃ are freely selectable parameters, RSSI _T1 and RSSI _T2 respectively represent the RSSI of the backscattered signals of the two tags T1 and T2 at the first time, and RSSI ' _T1 and RSSI' _T2 represents the RSSI of the backscattered signals of the two tags T1 and T2, respectively, at the second time.

It should be noted that the manner in which the controller determines the first value is not limited to formula (3). For example, the controller may determine the first value through a modified formula of formula (3).

Optionally, the controller determines the second value through the following formula (4):

Among them, B represents the second value, b ₁ , b ₂ and b ₃ are freely selectable parameters,

and

respectively represent the phase information of the backscattered signals of the two tags T1 and T2 at the first time, respectively,

and

represent the phase information of the backscattered signals of the two tags T1 and T2 at the second time, respectively.

It should be noted that the manner in which the controller determines the second numerical value is not limited to formula (4). For example, the controller may determine the second numerical value through a modified formula of formula (4).

Optionally, the controller determines the third value through the following formula (5):

P=αA+βB (5)

Among them, P represents the third value, α and β are freely selectable parameters, A represents the first value, and B represents the second value.

It should be noted that the manner in which the controller determines the third numerical value is not limited to formula (5). For example, the controller may determine the third numerical value through a modified formula of formula (5).

Optionally, if the third value is smaller than the preset threshold, it is determined that the above structure is in a closed state. If the third value is greater than or equal to the preset threshold, it is determined that the above structure is in an open state. Or, if the third value is less than or equal to the preset threshold, it is determined that the above structure is in a closed state. If the third value is greater than the preset threshold, it is determined that the above structure is in an open state.

Optionally, the preset threshold is a number greater than or equal to 0 and less than or equal to 1, or the preset threshold is a number greater than 0 and less than or equal to 1, or the preset threshold is a number greater than or equal to 0 and less than 1 .

Optionally, the preset threshold is equal to 0.5.

The following is a detailed description of the second option:

Optionally, the controller is based on the RSSI of the respective backscattered signals of the two tags at the first time, the RSSI of the backscattered signals at the second time, and the respective backscattered signals of the two tags when the structure is in the closed state RSSI to determine the fourth value. The controller is based on the phase information of the respective backscattered signals of the two tags at the first time, the phase information of the backscattered signals of the two tags at the second time, and the phase of the respective backscattered signals of the two tags when the structure is in the closed state information to determine the fifth value. The controller determines the seventh numerical value according to the fifth numerical value and the sixth numerical value. The controller determines the opening and closing state of the structure according to the relationship between the seventh numerical value and the preset threshold.

Optionally, the controller determines the fourth value through the following formula (6):

Among them, A' represents the fourth value, a ₁ , a ₂ , a ₃ and a ₄ are parameters that can be freely selected, and RSSI _T1 and RSSI _T2 respectively represent the backscattered signals of the two tags T1 and T2 at the first time. RSSI, RSSI' _T1 and RSSI' _T2 represent the RSSI of the backscattered signals of the two tags T1 and T2 respectively at the second time,

and

are the RSSIs of the respective backscattered signals of the two tags T1 and T2 when the structure is in the closed state, respectively.

It should be noted that the manner in which the controller determines the fourth numerical value is not limited to formula (6). For example, the controller may determine the fourth numerical value through a modified formula of formula (6).

Optionally, the controller determines the fifth value through the following formula (7):

Among them, B' represents the fifth value, b ₁ , b ₂ , b ₃ and b ₄ are freely selectable parameters,

and

respectively represent the phase information of the backscattered signals of the two tags T1 and T2 at the second time, respectively,

and

respectively represent the phase information of the respective backscattered signals of the two tags T1 and T2 when the structure is in the closed state.

It should be noted that the manner in which the controller determines the fifth numerical value is not limited to formula (7). For example, the controller may determine the fifth numerical value through a modified formula of formula (7).

Optionally, the controller determines the sixth numerical value through the following formula (8):

P'=αA'+βB' (8)

Among them, P' represents the third value, α and β are freely selectable parameters, A' represents the first value, and B' represents the second value.

Optionally, if the sixth value is smaller than the preset threshold, it is determined that the structure is in a closed state. If the sixth value is greater than or equal to the preset threshold, it is determined that the structure is in an open state. Alternatively, if the sixth value is less than or equal to the preset threshold, it is determined that the structure is in a closed state. If the sixth value is greater than the preset threshold, it is determined that the structure is in an open state.

Optionally, the preset threshold is equal to 0.5.

It should be noted that the preset thresholds in the above-mentioned optional mode 1 and optional mode 2 may be the same or different, which is not limited in this application.

Optionally, the above method further includes: after the controller determines the opening and closing state of the above structure according to the respective backscattered signals of the two tags, the controller may also send the opening and closing state of the above structure to the terminal device for the user to use. Check the opening and closing status of the above structure. For example, in the communication system shown in FIG. 1 , the controller can directly send the opening and closing status of the above structure to the terminal device. In the communication system shown in FIG. 2 , the controller can directly send the opening and closing states of the above structures to the cloud server, and the terminal device can obtain the opening and closing states of the above structures from the cloud server.

In this application, it is not necessary to rely on the positioning function of the sensor to determine the opening and closing state of the structure, but the sensor sends the respective backscattered signals of the two tags to the controller through the backscattering method, and the controller according to the respective backscattering signals of the two tags The backscattered signal determines the open and closed states of the structure including the stationary and moving components. Usually, the function of the controller is stronger than that of the sensor. Based on this, the opening and closing state of the structure determined by the controller is more accurate than the opening and closing state of the combination determined by the sensor through the positioning function. Further, the sensor can also convert CW energy into DC energy to supply power to the sensor, so that the sensor does not need to carry a battery. Reduce the later maintenance cost of the above structure.

FIG. 6 is a schematic flowchart of a wireless communication method 600 according to an embodiment of the present application, and the method 600 may be applied to the communication system shown in FIG. 1 or FIG. 2 . The sensor in the communication system includes two labels, which are respectively arranged on the fixed component and the moving component, a light-emitting unit is arranged on the first label of the two labels, and a photosensitive unit, a chip and a second label are arranged on the second label. antenna. Specifically, as shown in FIG. 6, the method 600 may include the following steps:

Step S610: The light-emitting unit of the first tag generates emitted light.

Step S620: The photosensitive unit of the second label senses the emitted light.

Step S630: the chip of the second tag obtains the sensing information.

Step S640: the antenna of the second tag sends sensing information to the controller.

Step S650: The controller determines the opening and closing states of the structure including the fixed component and the movable component according to the sensing information.

Optionally, the light-emitting unit may be a light-emitting diode, and certainly may be other light-emitting units, which are not limited in this application.

Optionally, the photosensitive unit may be a photosensitive resistor, and of course other photosensitive units, which are not limited in this application.

Optionally, the sensing information is used to indicate whether the sensing unit senses light or whether the RSSI of the sensed light is greater than a preset intensity, wherein the preset intensity can be controlled when the above structure, such as a door or a window, is closed. RSSI of light detected by the detector.

Optionally, the first tag further includes: an antenna. Correspondingly, the method further includes: the antenna of the first tag and the antenna of the second tag receive the CW sent by the controller. The antenna of the second tag sends a backscattered signal to the controller by means of backscattering. Among them, the perceptual information is carried in the backscattered signal.

Optionally, the backscattered signal also carries the identification of the second tag.

Optionally, the identifier of the second tag is represented by the access address of the second tag and the identifier of the sensor.

Optionally, the backscattered signal further includes: a preamble and a CRC of the backscattered signal.

Exemplarily, FIG. 7 is a schematic diagram of a data structure of a backscattered signal provided by an embodiment of the application. As shown in FIG. 7 , the backscattered signal includes a preamble, sensing information, and an access address of a second tag. , PDU, and CRC. Wherein, the IID of the second tag is represented by the access address and the identifier of the sensor in the PDU.

Optionally, when the sensing information is 0, it indicates that the sensing unit does not sense light; when the sensing information is 1, it indicates that the sensing unit senses light. Alternatively, when the sensing information is 0, it indicates that the RSSI of the light sensed by the sensing unit is less than or equal to the preset intensity; when the sensing information is 1, it indicates that the RSSI of the light sensed by the sensing unit is greater than the preset intensity. Alternatively, when the sensing information is 0, it indicates that the RSSI of the light sensed by the sensing unit is less than the preset intensity; when the sensing information is 1, it indicates that the RSSI of the light sensed by the sensing unit is greater than or equal to the preset intensity.

Optionally, when the sensing information is 1, it indicates that the sensing unit does not sense light; when the sensing information is 0, it indicates that the sensing unit senses light. Or, when the sensing information is 1, it means that the RSSI of the light sensed by the sensing unit is less than or equal to the preset intensity; when the sensing information is 0, it means that the RSSI of the light sensed by the sensing unit is greater than the preset intensity. Alternatively, when the sensing information is 1, it indicates that the RSSI of the light sensed by the sensing unit is less than the preset intensity; when the sensing information is 0, it indicates that the RSSI of the light sensed by the sensing unit is greater than or equal to the preset intensity.

Optionally, the controller may send control information to the sensor to instruct the antenna of the second tag to send a backscattered signal. Of course, the controller may also not send control information to the sensor, that is, no control information is required to trigger the second tag to send the backscattered signal.

Optionally, the above method further includes: the chip of the first tag and the chip of the second tag convert the energy of the continuous wave into direct current energy to supply power to the sensor.

The following describes step S650 in detail:

Optional way 1: if the controller determines that the sensing unit senses light, the controller determines that the structure is in a closed state. If the controller determines that the sensing unit does not sense light, the controller determines that the structure is in an open state.

Wherein, when the sensing information is 0, it indicates that the sensing unit does not sense light; when the sensing information is 1, it indicates that the sensing unit senses light. In this case, so-called if the controller determines that the sensing unit senses light, the controller determines that the structure is in a closed state. If the controller determines that the sensing unit does not sense light, the controller determines that the structure is in an open state. That is, when the sensing information obtained by the controller is 1, the controller determines that the structure is in a closed state. When the sensing information acquired by the controller is 0, the controller determines that the structure is in an open state.

When the sensing information is 1, it indicates that the sensing unit does not sense light; when the sensing information is 0, it indicates that the sensing unit senses light. In this case, so-called if the controller determines that the sensing unit senses light, the controller determines that the structure is in a closed state. If the controller determines that the sensing unit does not sense light, the controller determines that the structure is in an open state. That is, when the sensing information obtained by the controller is 0, the controller determines that the structure is in a closed state. When the sensing information acquired by the controller is 1, the controller determines that the structure is in an open state.

Optional way 2: if the controller determines that the RSSI of the light sensed by the sensing unit is greater than the preset intensity, the controller determines that the structure is in a closed state. If the controller determines that the sensing unit senses that the RSSI of the light is less than or equal to the preset intensity, the controller determines that the structure is in an open state.

Wherein, when the sensing information is 0, it means that the RSSI indicating that the sensing unit does not perceive light is less than or equal to the preset intensity; when the sensing information is 1, it means that the RSSI indicating that the sensing unit senses light is greater than the preset intensity. In this case, if the controller determines that the RSSI of the light sensed by the sensing unit is greater than the preset intensity, the controller determines that the structure is in a closed state. If the controller determines that the sensing unit senses that the RSSI of the light is less than or equal to the preset intensity, the controller determines that the structure is in an open state. That is, when the sensing information obtained by the controller is 1, the controller determines that the structure is in a closed state. When the sensing information acquired by the controller is 0, the controller determines that the structure is in an open state.

Wherein, when the sensing information is 1, it means that the RSSI indicating that the sensing unit does not perceive light is less than or equal to the preset intensity; when the sensing information is 0, it means that the RSSI indicating that the sensing unit senses the light is greater than the preset intensity. In this case, if the controller determines that the RSSI of the light sensed by the sensing unit is greater than the preset intensity, the controller determines that the structure is in a closed state. If the controller determines that the sensing unit senses that the RSSI of the light is less than or equal to the preset intensity, the controller determines that the structure is in an open state. That is, when the sensing information obtained by the controller is 0, the controller determines that the structure is in a closed state. When the sensing information acquired by the controller is 1, the controller determines that the structure is in an open state.

Option 3: If the controller determines that the RSSI of the light sensed by the sensing unit is greater than or equal to the preset intensity, the controller determines that the structure is in a closed state. If the controller determines that the RSSI of the light sensed by the sensing unit is less than the preset intensity, the controller determines that the structure is in an open state.

Wherein, when the sensing information is 0, it means that the RSSI indicating that the sensing unit does not perceive the light is less than the preset intensity; when the sensing information is 1, it means that the RSSI indicating that the sensing unit senses the light is greater than or equal to the preset intensity. In this case, if the controller determines that the RSSI of the light sensed by the sensing unit is greater than or equal to the preset intensity, the controller determines that the structure is in a closed state. If the controller determines that the RSSI of the light sensed by the sensing unit is less than the preset intensity, the controller determines that the structure is in an open state. That is, when the sensing information obtained by the controller is 1, the controller determines that the structure is in a closed state. When the sensing information acquired by the controller is 0, the controller determines that the structure is in an open state.

Wherein, when the sensing information is 1, it means that the RSSI indicating that the sensing unit does not perceive the light is less than the preset intensity; when the sensing information is 0, it means that the RSSI indicating that the sensing unit senses the light is greater than or equal to the preset intensity. In this case, if the controller determines that the RSSI of the light sensed by the sensing unit is greater than or equal to the preset intensity, the controller determines that the structure is in a closed state. If the controller determines that the RSSI of the light sensed by the sensing unit is less than the preset intensity, the controller determines that the structure is in an open state. That is, when the sensing information obtained by the controller is 0, the controller determines that the structure is in a closed state. When the sensing information acquired by the controller is 1, the controller determines that the structure is in an open state.

Optionally, the above method further includes: after the controller determines the opening and closing state of the above structure according to the sensing information, the controller may also send the opening and closing state of the above structure to the terminal device, so that the user can check the opening and closing state of the above structure. For example, in the communication system shown in FIG. 1 , the controller can directly send the opening and closing state of the above structure to the terminal device. In the communication system shown in FIG. 2 , the controller can directly send the opening and closing states of the above structures to the cloud server, and the terminal device can obtain the opening and closing states of the above structures from the cloud server.

In this application, it is not necessary to rely on the positioning function of the sensor to determine the opening and closing state of the structure, but the sensor obtains the sensing information through the cooperation of the light-emitting unit and the sensing unit, and sends the sensing information to the controller. The information determines the open and closed states of the structure including the stationary and moving components. Usually, the function of the controller is stronger than that of the sensor. Based on this, the opening and closing state of the structure determined by the controller is more accurate than the opening and closing state of the combination determined by the sensor through the positioning function. Further, the sensor can also convert CW energy into DC energy to supply power to the sensor, so that the sensor does not need to carry a battery. Reduce the later maintenance cost of the above structure.

The method embodiments of the present application are described in detail above with reference to FIGS. 3 to 7 , and the device embodiments of the present application are described in detail below with reference to FIGS. 8 to 16 . It should be understood that the device embodiments and the method embodiments correspond to each other, and are similar to For the description, refer to the method embodiment.

FIG. 8 shows a schematic diagram of a sensor 800 according to an embodiment of the present application. As shown in FIG. 8 , the sensor 800 includes two labels 810 , which are respectively disposed on the fixed component and the mobile component, and FIG. 9 shows a schematic diagram of the label 900 according to an embodiment of the present application. As shown in FIG. 9 , each tag 900 includes an antenna 910 and a chip 920. For any tag 900: the antenna 910 is used to receive the continuous wave sent by the controller; the chip 920 is used to generate backscattered signals; the antenna 910 is also used to The backscattering signal is sent to the controller by means of backscattering, so that the controller determines the opening and closing states of the structure including the fixed component and the moving component according to the respective backscattered signals of the two tags.

Optionally, the backscattered signal of each tag includes: an identification of the tag.

Optionally, the identification of the tag is represented by the access address of the tag and the identification of the sensor.

Optionally, the backscattered signal of each tag further includes: a preamble and/or CRC of the backscattered signal.

Optionally, the antenna 910 is further configured to receive control information sent by the controller, where the control information is used to instruct the sensor to send respective backscattered signals of the two tags.

Optionally, the chip 920 is also used to convert CW energy into DC energy to power the sensor.

10 shows a schematic block diagram of a chip 1000 according to an embodiment of the present application. As shown in FIG. 10 , the chip includes the following: an impedance matching unit 1010 , a radio frequency energy collection unit 1020 , an energy management unit 1030 , a decoder 1040 , an encoder 1050 , a microprocessor 1060 and a memory 1070 .

The impedance matching unit 1010 performs impedance matching on the radio frequency signal (ie the above-mentioned CW) after receiving it through the antenna; the radio frequency energy collection unit 1020 is used to collect the radio frequency signal; the energy management unit 1030 is used to convert the energy of the radio frequency signal into DC energy is used to power the sensor and send the power supply to the microprocessor 1060, and the power supply can also be stored in the memory 1070; the decoder 1040 is used to convert the radio frequency signal into a baseband signal, and transmit the baseband signal to the microprocessor. The microprocessor 1060 is used to process the baseband signal; the microprocessor 1060 is also used to send the baseband signal (ie, the backscattered signal) to the encoder 1050, and the encoder 1050 converts the baseband signal into a radio frequency signal, and sent to the controller via the antenna.

To sum up, the sensor 800 provided by the present application can implement the method embodiments and optional methods on the sensor side corresponding to FIG. 3 . For the content and effects, refer to the method embodiments and optional methods corresponding to FIG. 3 , and details are not repeated here.

The embodiment of the present application further provides a controller, where the controller is used for: sending a continuous wave. The respective backscattered signals of the two tags sent by the sensor through the backscattering method are received, wherein the sensor includes two tags, and the two tags are respectively arranged on the fixed component and the moving component. The opening and closing states of the structure including the fixed component and the moving component are determined according to the respective backscattered signals of the two tags.

Optionally, the controller is specifically configured to: acquire RSSI and phase information of the respective backscattered signals of the two tags. Based on the RSSI and phase information of the respective backscattered signals of the two tags, the open and closed states of the structures are determined.

Optionally, the respective backscattered signals of the two tags include: the respective backscattered signals of the two tags at a first time and the respective backscattered signals of the two tags at a second time, the second time being earlier than the first time time.

Optionally, the controller is specifically configured to: determine the first value according to the RSSI of the backscattered signal at the first time and the RSSI of the backscattered signal at the second time respectively of the two tags. The second value is determined based on the phase information of the backscattered signal at the first time and the phase information of the backscattered signal at the second time, respectively, of the two tags. Based on the first value and the second value, a third value is determined. According to the relationship between the third numerical value and the preset threshold value, the opening and closing state of the structure is determined.

Optionally, the controller is specifically configured to: determine the first value by the following formula:

Optionally, the controller is specifically configured to: determine the second value by the following formula:

and

Optionally, the controller is specifically configured to: determine the third numerical value by the following formula:

P=αA+βB

Optionally, the controller is specifically configured to determine that the structure is in a closed state if the third value is less than a preset threshold. If the third value is greater than or equal to the preset threshold, it is determined that the structure is in an open state.

Optionally, the controller is specifically configured to: if the third value is less than or equal to a preset threshold, determine that the structure is in a closed state. If the third value is greater than the preset threshold, it is determined that the structure is in an open state.

Optionally, the controller is further configured to: acquire RSSI and phase information of the respective backscattered signals of the two tags when the structure is in a closed state. Correspondingly, the controller is specifically used to: determine the structure according to the RSSI and phase information of the respective backscattered signals of the two tags, and, when the structure is in a closed state, to determine the structure the opening and closing state.

Optionally, the controller is specifically configured to: according to the RSSI of the backscattered signal of the two tags at the first time, the RSSI of the backscattered signal at the second time, and the two tags when the door or the window is in a closed state. The RSSI of the respective backscattered signals determines the fourth value. According to the phase information of the respective backscattered signals of the two tags at the first time, the phase information of the backscattered signals at the second time, and the phase of the respective backscattered signals of the two tags when the door or window is in the closed state information to determine the fifth value. Based on the fifth numerical value and the sixth numerical value, a seventh numerical value is determined. According to the relationship between the seventh numerical value and the preset threshold, the opening and closing state of the structure is determined.

Optionally, the controller is specifically configured to: determine the fourth numerical value by the following formula:

and

Optionally, the controller is specifically configured to: determine the fifth numerical value by the following formula:

and

Optionally, the controller is specifically configured to: determine the sixth numerical value by the following formula:

P'=αA'+βB'

Optionally, the controller is specifically configured to determine that the structure is in a closed state if the sixth numerical value is less than a preset threshold. If the sixth value is greater than or equal to the preset threshold, it is determined that the structure is in an open state.

Optionally, the controller is specifically configured to determine that the structure is in a closed state if the sixth numerical value is less than or equal to a preset threshold. If the sixth value is greater than the preset threshold, it is determined that the structure is in an open state.

To sum up, the controller provided by the present application can implement the method embodiments and optional methods on the controller side corresponding to FIG. 3 . For the content and effects, refer to the method embodiments and optional methods corresponding to FIG. 3 , which will not be repeated here. .

FIG. 11 shows a schematic diagram of a sensor 1100 according to an embodiment of the present application. As shown in FIG. 11 , the sensor 1100 includes two labels, the two labels are respectively arranged on the fixed component and the moving component, the light-emitting unit 1120 is arranged on the first label 1110 of the two labels, and the second label 1130 includes: an antenna , chip and photosensitive unit 1140. Wherein, the light-emitting unit 1120 of the first label is used to generate emitted light. The photosensitive unit 1140 of the second label is used to sense the emitted light. The chip of the second tag is used to obtain perception information. The antenna of the second tag is used for sending sensing information to the controller, so that the controller determines the opening and closing states of the structure including the fixed component and the moving component according to the sensing information.

Optionally, the sensing information is used to indicate whether the sensing unit senses light or whether the RSSI of the sensed light is greater than a preset intensity.

Optionally, the antenna of the first tag and the antenna of the second tag are also used to receive the continuous wave sent by the controller. The antenna of the second tag is also used for sending backscattered signals to the controller by means of backscattering. Among them, the perceptual information is carried in the backscattered signal.

Optionally, the antenna of the second tag is further configured to receive control information sent by the controller, where the control information is used to instruct the second tag to send backscattered signals.

Optionally, the chip of the first tag is also used to convert CW energy into DC energy to supply power to the sensor. The chip of the second tag is also used to convert the CW energy into DC energy to power the sensor, so that the light emitting unit 1120 emits light of RSSI that meets the system requirements.

FIG. 12 shows a schematic block diagram of a first tag 1200 according to an embodiment of the present application. As shown in FIG. 12 , the chip includes the following contents: an impedance matching unit 1210 , a radio frequency energy collection unit 1220 , an energy management unit 1230 and a light emitting unit 1240 .

The impedance matching unit 1210 performs impedance matching on the radio frequency signal (ie the above-mentioned CW) after receiving it through the antenna; the radio frequency energy collection unit 1220 is used to collect the radio frequency signal; the energy management unit 1230 is used to convert the energy of the radio frequency signal into DC energy to power the sensor so that the lighting unit 1240 emits light that meets the RSSI requirements of the system.

FIG. 13 shows a schematic block diagram of a second tag 1300 according to an embodiment of the present application. As shown in FIG. 13 , the chip includes the following: an impedance matching unit 1310 , a radio frequency energy collection unit 1320 , an energy management unit 1330 , a decoder 1340 , an encoder 1350 , a microprocessor 1360 , a memory 1370 and a photosensitive unit 1380 .

The impedance matching unit 1310 performs impedance matching after receiving the radio frequency signal (ie the above-mentioned CW) through the antenna; the radio frequency energy collecting unit 1320 is used to collect the radio frequency signal; the energy management unit 1330 is used to convert the energy of the radio frequency signal into DC energy , to supply power to the sensor, and send the power supply to the microprocessor 1360, or store the power supply in the memory 1370; the decoder 1340 is used to convert the radio frequency signal into a baseband signal, and transmit the baseband signal to the microprocessor 1360 , so that the microprocessor 1360 processes the baseband signal; the photosensitive unit 1380 is used for sensing the emitted light. The microprocessor 1360 is also used to send the baseband signal (ie, the backscattered signal carrying the sensing information) to the encoder 1350, and the encoder 1350 converts the baseband signal into a radio frequency signal and sends it to the controller through the antenna.

To sum up, the sensor 1100 provided by the present application can implement the method embodiments and optional methods on the sensor side corresponding to FIG. 6 . For the content and effects, refer to the method embodiments and optional methods corresponding to FIG. 6 , which will not be repeated here.

An embodiment of the present application further provides a controller, where the controller is configured to: receive sensing information sent by an antenna of a second tag of a sensor. The opening and closing states of the structure including the fixed component and the movable component are determined according to the sensing information. The sensor includes two labels, the two labels are respectively arranged on the fixed component and the moving component, the first label of the two labels is provided with a light-emitting unit, the second label is provided with a photosensitive unit, a chip and an antenna, and the first label is provided with a light-emitting unit. The light emitting unit of the label is used to generate the emitted light. The photosensitive unit of the second tag senses the emitted light, and the chip of the second tag is used to obtain sensing information.

Optionally, the controller is specifically configured to determine that the structure is in a closed state if the controller determines that the sensing unit senses light. If the controller determines that the sensing unit does not sense light, it determines that the structure is in an open state.

Optionally, the controller is specifically configured to: if the controller determines that the RSSI of the light sensed by the sensing unit is greater than a preset intensity, determine that the structure is in a closed state. If the controller determines that the RSSI of the light sensed by the sensing unit is less than or equal to the preset intensity, it is determined that the structure is in an open state.

Optionally, the controller is specifically configured to determine that the structure is in a closed state if the controller determines that the RSSI of the light sensed by the sensing unit is greater than or equal to a preset intensity. If the controller determines that the RSSI of the light sensed by the sensing unit is less than the preset intensity, it is determined that the structure is in an open state.

To sum up, the controller provided by the present application can implement the method embodiments and optional methods on the controller side corresponding to FIG. 6 . For the content and effects, please refer to the method embodiments and optional methods corresponding to FIG. 6 , which will not be repeated here. .

FIG. 14 is a schematic structural diagram of an apparatus according to an embodiment of the present application. The apparatus 1400 shown in FIG. 14 includes a processor 1410, and the processor 1410 can call and run a computer program from a memory, so as to implement the method in the embodiment of the present application.

Optionally, as shown in FIG. 14 , the apparatus 1400 may further include a memory 1420 . The processor 1410 may call and run a computer program from the memory 1420 to implement the methods in the embodiments of the present application.

The memory 1420 may be a separate device independent of the processor 1410, or may be integrated in the processor 1410.

Optionally, the apparatus 1400 may further include an input interface 1430 . The processor 1410 can control the input interface 1430 to communicate with other devices or chips, and specifically, can obtain information or data sent by other devices or chips.

Optionally, the apparatus 1400 may further include an output interface 1440 . The processor 1410 may control the output interface 1440 to communicate with other devices or chips, and specifically, may output information or data to other devices or chips.

Optionally, the device can be applied to the sensor in the embodiment of the present application, and the device can implement the corresponding process implemented by the sensor in each method of the embodiment of the present application, which is not repeated here for brevity.

Optionally, the device mentioned in the embodiment of the present application may also be a chip. For example, it can be a system-on-chip, a system-on-a-chip, a system-on-a-chip, or a system-on-a-chip.

FIG. 15 is a schematic block diagram of a communication system 1500 provided by an embodiment of the present application. As shown in FIG. 15 , the communication system 1500 includes a sensor 1510 and a controller 1520 .

The sensor 1510 can be used to implement the corresponding functions implemented by the sensor in the above method, and the controller 1520 can be used to implement the corresponding functions implemented by the controller in the above method. For brevity, details are not repeated here.

It should be understood that the processor in this embodiment of the present application may be an integrated circuit chip, which has a signal processing capability. In the implementation process, each step of the above method embodiments may be completed by a hardware integrated logic circuit in a processor or an instruction in the form of software. The above-mentioned processor can be a general-purpose processor, a digital signal processor (Digital Signal Processor, DSP), an application specific integrated circuit (Application Specific Integrated Circuit, ASIC), an off-the-shelf programmable gate array (Field Programmable Gate Array, FPGA) or other available Programming logic devices, discrete gate or transistor logic devices, discrete hardware components. The methods, steps, and logic block diagrams disclosed in the embodiments of this application can be implemented or executed. A general purpose processor may be a microprocessor or the processor may be any conventional processor or the like. The steps of the method disclosed in conjunction with the embodiments of the present application may be directly embodied as executed by a hardware decoding processor, or executed by a combination of hardware and software modules in the decoding processor. The software modules may be located in random access memory, flash memory, read-only memory, programmable read-only memory or electrically erasable programmable memory, registers and other storage media mature in the art. The storage medium is located in the memory, and the processor reads the information in the memory, and completes the steps of the above method in combination with its hardware.

It can be understood that the memory in this embodiment of the present application may be a volatile memory or a non-volatile memory, or may include both volatile and non-volatile memory. Wherein, the non-volatile memory may be a read-only memory (Read-Only Memory, ROM), a programmable read-only memory (Programmable ROM, PROM), an erasable programmable read-only memory (Erasable PROM, EPROM), an electrically programmable read-only memory (Erasable PROM, EPROM). Erase programmable read-only memory (Electrically EPROM, EEPROM) or flash memory. Volatile memory may be Random Access Memory (RAM), which acts as an external cache. By way of example and not limitation, many forms of RAM are available, such as Static RAM (SRAM), Dynamic RAM (DRAM), Synchronous DRAM, SDRAM), double data rate synchronous dynamic random access memory (Double Data Rate SDRAM, DDR SDRAM), enhanced synchronous dynamic random access memory (Enhanced SDRAM, ESDRAM), synchronous link dynamic random access memory (Synchlink DRAM, SLDRAM) ) and direct memory bus random access memory (Direct Rambus RAM, DR RAM). It should be noted that the memory of the systems and methods described herein is intended to include, but not be limited to, these and any other suitable types of memory.

It should be understood that the above memory is an example but not a limitative description, for example, the memory in the embodiment of the present application may also be a static random access memory (static RAM, SRAM), a dynamic random access memory (dynamic RAM, DRAM), Synchronous dynamic random access memory (synchronous DRAM, SDRAM), double data rate synchronous dynamic random access memory (double data rate SDRAM, DDR SDRAM), enhanced synchronous dynamic random access memory (enhanced SDRAM, ESDRAM), synchronous connection Dynamic random access memory (synch link DRAM, SLDRAM) and direct memory bus random access memory (Direct Rambus RAM, DR RAM) and so on. That is, the memory in the embodiments of the present application is intended to include but not limited to these and any other suitable types of memory.

Embodiments of the present application further provide a computer-readable storage medium for storing a computer program.

Optionally, the computer-readable storage medium can be applied to the sensor or the controller in the embodiments of the present application, and the computer program enables the computer to execute the corresponding processes implemented by the sensor or the controller in each method of the embodiments of the present application, in order to It is concise and will not be repeated here.

Embodiments of the present application also provide a computer program product, including computer program instructions.

Optionally, the computer program product can be applied to the sensor or the controller in the embodiments of the present application, and the computer program instructions cause the computer to execute the corresponding processes implemented by the sensor or the controller in the various methods of the embodiments of the present application, for the sake of brevity. , and will not be repeated here.

The embodiments of the present application also provide a computer program.

Optionally, the computer program can be applied to the sensor or the controller in the embodiments of the present application, and when the computer program runs on the computer, the computer executes the corresponding methods implemented by the sensor or the controller in each method of the embodiments of the present application. The process, for the sake of brevity, will not be repeated here.

Those of ordinary skill in the art can realize that the units and algorithm steps of each example described in conjunction with the embodiments disclosed herein can be implemented in electronic hardware, or a combination of computer software and electronic hardware. Whether these functions are performed in hardware or software depends on the specific application and design constraints of the technical solution. Skilled artisans may implement the described functionality using different methods for each particular application, but such implementations should not be considered beyond the scope of this application.

Those skilled in the art can clearly understand that, for the convenience and brevity of description, the specific working process of the above-described systems, devices and units may refer to the corresponding processes in the foregoing method embodiments, which will not be repeated here.

In the several embodiments provided in this application, it should be understood that the disclosed system, apparatus and method may be implemented in other manners. For example, the apparatus embodiments described above are only illustrative. For example, the division of the units is only a logical function division. In actual implementation, there may be other division methods. For example, multiple units or components may be combined or Can be integrated into another system, or some features can be ignored, or not implemented. On the other hand, the shown or discussed mutual coupling or direct coupling or communication connection may be through some interfaces, indirect coupling or communication connection of devices or units, and may be in electrical, mechanical or other forms.

The units described as separate components may or may not be physically separated, and components displayed as units may or may not be physical units, that is, may be located in one place, or may be distributed to multiple network units. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution in this embodiment.

In addition, each functional unit in each embodiment of the present application may be integrated into one processing unit, or each unit may exist physically alone, or two or more units may be integrated into one unit.

The functions, if implemented in the form of software functional units and sold or used as independent products, may be stored in a computer-readable storage medium. For such understanding, the technical solution of the present application can be embodied in the form of a software product in essence, or the part that contributes to the prior art or the part of the technical solution. The computer software product is stored in a storage medium, including Several instructions are used to cause a computer device (which may be a personal computer, a server, or a network device, etc.) to execute all or part of the steps of the methods described in the various embodiments of the present application. The aforementioned storage medium includes: U disk, mobile hard disk, read-only memory (Read-Only Memory, ROM), random access memory (Random Access Memory, RAM), magnetic disk or optical disk and other media that can store program codes .

The above are only specific embodiments of the present application, but the protection scope of the present application is not limited to this. should be covered within the scope of protection of this application. Therefore, the protection scope of the present application should be based on the protection scope of the claims.

Claims

A wireless communication method, characterized in that, the method is applied to a sensor including two tags, the two tags are respectively arranged on a fixed component and a mobile component, and the method includes:

the sensor receives the continuous wave sent by the controller;

The sensor sends the respective backscattered signals of the two tags to the controller by means of backscattering, so that the controller determines that the fixing component is included according to the respective backscattered signals of the two tags and the open and closed state of the structure of the moving component.
The method of claim 1, wherein the backscattered signal of each of the tags comprises: an identification of the tag.
The method according to claim 2, wherein the identification of the tag is represented by the access address of the tag and the identification of the sensor.
The method according to claim 2 or 3, wherein the backscattered signal of each tag further comprises: a preamble and/or a cyclic redundancy check code (CRC) of the backscattered signal.
The method according to any one of claims 2-4, further comprising:

The sensor receives control information sent by the controller, where the control information is used to instruct the sensor to send respective backscatter signals of the two tags.
The method according to any one of claims 1-5, characterized in that, further comprising:

The sensor converts the energy of the continuous wave to DC energy to power the sensor.
A wireless communication method, wherein the method is applied to a controller, and the method includes:

the controller sends a continuous wave;

The controller receives the respective backscattered signals of the two tags sent by the sensor in a backscattering manner, wherein the sensor includes the two tags, and the two tags are respectively disposed on the fixed component and the moving component;

The controller determines the opening and closing states of the structure including the fixed component and the moving component according to the respective backscattered signals of the two tags.
The method according to claim 7, wherein the controller determines the opening and closing states of the structure including the fixed component and the moving component according to the respective backscattered signals of the two tags, comprising:

The controller obtains the received signal strength indication RSSI and phase information of the respective backscattered signals of the two tags;

The controller determines the opening and closing states of the structure according to the RSSI and phase information of the respective backscattered signals of the two tags.
The method according to claim 8, wherein the respective backscattered signals of the two labels comprise: the backscattered signals of the two labels at the first time and the backscattered signals of the two labels at the first time. The backscattered signal at two times, the second time being earlier than the first time.
The method according to claim 9, wherein the controller determines the opening and closing states of the structure according to the RSSI and phase information of the respective backscattered signals of the two tags, comprising:

The controller determines the first value according to the RSSIs of the backscattered signals at the first time and the RSSIs of the backscattered signals at the second time respectively of the two tags;

The controller determines the second value according to the phase information of the backscattered signals at the first time and the phase information of the backscattered signals at the second time respectively of the two tags;

the controller determines a third value according to the first value and the second value;

The controller determines the opening and closing state of the structure according to the relationship between the third value and the preset threshold.
The method according to claim 10, wherein the controller determines the first value by the following formula:

Among them, A represents the first value, a 1 , a 2 and a 3 are freely selectable parameters, and RSSI T1 and RSSI T2 respectively represent the RSSI of the backscattered signals of the two tags T1 and T2 at the first time. , RSSI' T1 and RSSI' T2 represent the RSSI of the backscattered signals of the two tags T1 and T2 at the second time, respectively.
The method according to claim 10 or 11, wherein the controller determines the second value by the following formula:

Among them, B represents the second value, b 1 , b 2 and b 3 are freely selectable parameters,
and
respectively represent the phase information of the backscattered signals of the two tags T1 and T2 at the first time, respectively,
and
respectively represent the phase information of the backscattered signals of the two tags T1 and T2 at the second time.
The method according to any one of claims 10-12, wherein the controller determines the third value by the following formula:

P=αA+βB

Among them, P represents the third value, α and β are freely selectable parameters, A represents the first value, and B represents the second value.
The method according to any one of claims 10-13, wherein the controller determines the opening and closing state of the structure according to the relationship between the third value and a preset threshold, comprising:

If the third value is less than the preset threshold, determining that the structure is in a closed state;

If the third value is greater than or equal to the preset threshold, it is determined that the structure is in an open state.
The method according to any one of claims 10-13, wherein the controller determines the opening and closing state of the structure according to the relationship between the third value and a preset threshold, comprising:

If the third value is less than or equal to the preset threshold, determining that the structure is in a closed state;

If the third value is greater than the preset threshold, it is determined that the structure is in an open state.
The method according to claim 9, wherein before the controller determines the opening and closing state of the structure according to the RSSI and phase information of the respective backscattered signals of the two tags, the controller further comprises:

the controller obtains RSSI and phase information of the respective backscattered signals of the two tags when the structure is in a closed state;

Correspondingly, the controller determines the opening and closing states of the structure according to the RSSI and phase information of the respective backscattered signals of the two tags, including:

The controller determines according to the RSSI and phase information of the respective backscattered signals of the two tags, and the RSSI and phase information of the respective backscattered signals of the two tags when the structure is in a closed state The open and closed state of the structure.
17. The method of claim 16, wherein the controller is based on RSSI and phase information of the respective backscattered signals of the two tags, and wherein the two tags are in a closed state when the structure is in a closed state The RSSI and phase information of the respective backscattered signals, which determine the open and closed states of the structures, include:

The controller is based on the RSSI of the backscattered signal of each of the two tags at a first time, the RSSI of the backscattered signal at a second time, and the respective RSSI of the two tags when the structure is in the closed state. RSSI of the backscattered signal to determine the fourth value;

The controller is based on the phase information of the backscattered signals of the respective two tags at a first time, the phase information of the backscattered signals at a second time, and the two tags when the structure is in a closed state the phase information of the respective backscattered signals to determine the fifth value;

The controller determines a seventh numerical value according to the fifth numerical value and the sixth numerical value;

The controller determines the opening and closing state of the structure according to the relationship between the seventh numerical value and the preset threshold.
The method of claim 17, wherein the controller determines the fourth value by the following formula:

Wherein, A' represents the fourth numerical value, a 1 , a 2 , a 3 and a 4 are freely selectable parameters, and RSSI T1 and RSSI T2 respectively represent the inversion of the two tags T1 and T2 at the first time RSSI of the scattered signal, RSSI' T1 and RSSI' T2 respectively represent the RSSI of the backscattered signal of the two tags T1 and T2 at the second time, respectively,
and
respectively represent the RSSI of the respective backscattered signals of the two tags T1 and T2 when the structure is in the closed state.
The method according to claim 17 or 18, wherein the controller determines the fifth value by the following formula:

Among them, B' represents the fifth value, b 1 , b 2 , b 3 and b 4 are freely selectable parameters,
and
respectively represent the phase information of the backscattered signals of the two tags T1 and T2 at the first time, respectively,
and
respectively represent the phase information of the backscattered signals of the two tags T1 and T2 at the second time, respectively,
and
respectively represent the phase information of the respective backscattered signals of the two tags T1 and T2 when the structure is in a closed state.
The method according to any one of claims 17-19, wherein the controller determines the sixth value by the following formula:

P'=αA'+βB'

Among them, P' represents the third value, α and β are freely selectable parameters, A' represents the first value, and B' represents the second value.
The method according to any one of claims 17-20, wherein the controller determines the opening and closing state of the structure according to the relationship between the sixth numerical value and a preset threshold, comprising:

If the sixth numerical value is less than the preset threshold, determining that the structure is in a closed state;

If the sixth value is greater than or equal to the preset threshold, it is determined that the structure is in an open state.
The method according to any one of claims 17-20, wherein the controller determines the opening and closing state of the structure according to the relationship between the sixth numerical value and a preset threshold, comprising:

If the sixth value is less than or equal to the preset threshold, determining that the structure is in a closed state;

If the sixth value is greater than the preset threshold, it is determined that the structure is in an open state.
A wireless communication method, characterized in that the method is applied to a sensor including two labels, the two labels are respectively arranged on a fixed component and a moving component, and a first label of the two labels is provided with The light-emitting unit, the second label is provided with a photosensitive unit, a chip and an antenna, and the method includes:

the light-emitting unit of the first label generates emitted light;

The photosensitive unit of the second label senses the emitted light;

The chip of the second tag obtains sensing information;

The antenna of the second tag sends the sensing information to the controller, so that the controller determines the opening and closing state of the structure including the fixed component and the moving component according to the sensing information.
The method according to claim 23, wherein the sensing information is used to indicate whether the sensing unit senses light or whether the RSSI of the sensed light is greater than a preset intensity.
The method according to claim 23 or 24, wherein the first tag further comprises: an antenna, and correspondingly, the method further comprises:

The antenna of the first tag and the antenna of the second tag receive the continuous wave sent by the controller;

The antenna of the second tag sends a backscattered signal to the controller by backscattering;

Wherein, the sensing information is carried in the backscattered signal.
The method of claim 25, wherein:

The backscattered signal also carries the identification of the second tag.
The method according to claim 25 or 26, wherein the identifier of the second tag is represented by the access address of the second tag and the identifier of the sensor.
The method according to any one of claims 25-27, further comprising:

The backscattered signal further includes: a preamble and a CRC of the backscattered signal.
The method according to any one of claims 25-28, further comprising:

The antenna of the second tag receives the control information sent by the controller, where the control information is used to instruct the second tag to send the backscattered signal.
The method according to any one of claims 25-29, further comprising:

The chip of the first tag and the chip of the second tag convert the energy of the continuous wave into DC energy to power the sensor.
A wireless communication method, wherein the method is applied to a controller, and the method includes:

The controller receives the sensing information sent by the antenna of the second tag;

The controller determines the opening and closing state of the structure including the fixed component and the moving component according to the sensing information;

Wherein, the sensor includes two labels, the two labels are respectively arranged on the fixed component and the moving component, a light-emitting unit is arranged on the first label of the two labels, and a light-emitting unit is arranged on the second label. There are a photosensitive unit, a chip and an antenna. The light-emitting unit of the first label is used to generate emitted light; the photosensitive unit of the second label senses the emitted light, and the chip of the second label is used to obtain the sensing information .
The method according to claim 31, wherein the sensing information is used to indicate whether the sensing unit senses light or whether the RSSI of the sensed light is greater than a preset intensity.
The method according to claim 32, wherein the controller determines the opening and closing states of the structure including the fixed component and the movable component according to the sensing information, comprising:

If the controller determines that the sensing unit senses light, the controller determines that the structure is in a closed state;

If the controller determines that the sensing unit does not sense light, the controller determines that the structure is in an open state.
The method according to claim 32, wherein the controller determines the opening and closing states of the structure including the fixed component and the movable component according to the sensing information, comprising:

If the controller determines that the sensing unit senses that the RSSI of the light is greater than a preset intensity, the controller determines that the structure is in a closed state;

If the controller determines that the sensing unit senses that the RSSI of light is less than or equal to the preset intensity, the controller determines that the structure is in an open state.
The method according to claim 32, wherein the controller determines the opening and closing states of the structure including the fixed component and the movable component according to the sensing information, comprising:

If the controller determines that the sensing unit senses that the RSSI of light is greater than or equal to a preset intensity, the controller determines that the structure is in a closed state;

If the controller determines that the RSSI of the light sensed by the sensing unit is less than the preset intensity, the controller determines that the structure is in an open state.
A sensor, characterized in that it includes two labels, the two labels are respectively arranged on a fixed component and a moving component, each of the labels includes an antenna and a chip, and for any one of the labels:

The antenna is used to receive the continuous wave sent by the controller;

The chip is used for generating backscattered signals;

The antenna is further configured to send the backscattered signal to the controller by means of backscattering, so that the controller determines, according to the respective backscattered signals of the two tags, that the fixed component and the movement are included. The open and closed state of the component's structure.
37. The sensor of claim 36, wherein the backscattered signal of each of the tags includes an identification of the tag.
The sensor according to claim 37, wherein the identification of the tag is represented by the access address of the tag and the identification of the sensor.
The sensor according to claim 37 or 38, wherein the backscattered signal of each tag further comprises: a preamble and/or CRC of the backscattered signal.
The sensor according to any one of claims 37-39, characterized in that,

The antenna is further configured to receive control information sent by the controller, where the control information is used to instruct the sensor to send respective backscattered signals of the two tags.
The sensor according to any one of claims 36-40, characterized in that,

The chip is also used to convert the energy of the continuous wave into direct current energy to power the sensor.
A controller, characterized in that the controller is used for:

send a continuous wave;

receiving the respective backscattered signals of the two tags sent by the sensor in a backscattering manner, wherein the sensor includes the two tags, and the two tags are respectively arranged on the fixed component and the moving component;

The opening and closing states of the structure including the fixed component and the moving component are determined according to the respective backscattered signals of the two tags.
The controller of claim 42, wherein the controller is specifically configured to:

acquiring the RSSI and phase information of the respective backscattered signals of the two tags;

According to the RSSI and phase information of the respective backscattered signals of the two tags, the open and closed states of the structure are determined.
The controller according to claim 43, wherein the respective backscattered signals of the two tags comprise: the backscattered signals of the two tags respectively at the first time and the respective backscattered signals of the two tags at the first time The backscattered signal at a second time, the second time being earlier than the first time.
The controller of claim 44, wherein the controller is specifically configured to:

determining the first value according to the RSSIs of the backscattered signals at the first time and the RSSIs of the backscattered signals at the second time, respectively, of the two tags;

determining the second value according to the phase information of the backscattered signals at the first time and the phase information of the backscattered signals at the second time respectively of the two tags;

determining a third numerical value according to the first numerical value and the second numerical value;

According to the relationship between the third numerical value and the preset threshold value, the opening and closing state of the structure is determined.
The controller of claim 45, wherein the controller is specifically configured to:

The first value is determined by the following formula:

Among them, A represents the first value, a 1 , a 2 and a 3 are freely selectable parameters, and RSSI T1 and RSSI T2 respectively represent the RSSI of the backscattered signals of the two tags T1 and T2 at the first time. , RSSI' T1 and RSSI' T2 represent the RSSI of the backscattered signals of the two tags T1 and T2 at the second time, respectively.
The controller according to claim 45 or 46, wherein the controller is specifically used for:

The second value is determined by the following formula:

Among them, B represents the second value, b 1 , b 2 and b 3 are freely selectable parameters,
and
respectively represent the phase information of the backscattered signals of the two tags T1 and T2 at the first time, respectively,
and
respectively represent the phase information of the backscattered signals of the two tags T1 and T2 at the second time.
The controller according to any one of claims 45-47, wherein the controller is specifically configured to: determine the third value by the following formula:

P=αA+βB

Among them, P represents the third value, α and β are freely selectable parameters, A represents the first value, and B represents the second value.
The controller according to any one of claims 45-48, wherein the controller is specifically used for:

If the third value is less than the preset threshold, determining that the structure is in a closed state;

If the third value is greater than or equal to the preset threshold, it is determined that the structure is in an open state.
The controller according to any one of claims 45-48, wherein the controller is specifically used for:

If the third value is less than or equal to the preset threshold, determining that the structure is in a closed state;

If the third value is greater than the preset threshold, it is determined that the structure is in an open state.
The controller of claim 44, wherein the controller is further configured to:

obtaining RSSI and phase information of the respective backscattered signals of the two tags when the structure is in a closed state;

Correspondingly, the controller is specifically used for:

According to the RSSI and phase information of the respective backscattered signals of the two tags, and the RSSI and phase information of the respective backscattered signals of the two tags when the structure is in a closed state, determine the open and closed state.
The controller according to claim 51, wherein the controller is specifically used for:

Based on the RSSI of the backscattered signal of the two tags at the first time, the RSSI of the backscattered signal at the second time, and the backscattered signal of the two tags when the door or window is in the closed state. RSSI, determine the fourth value;

According to the phase information of the backscattered signal of each of the two tags at the first time, the phase information of the backscattered signal of the two tags at the second time and the respective inversion of the two tags when the door or window is in the closed state the phase information of the scattered signal to determine the fifth value;

According to the fifth numerical value and the sixth numerical value, determine a seventh numerical value;

According to the relationship between the seventh numerical value and the preset threshold value, the opening and closing state of the structure is determined.
The controller of claim 52, wherein the controller is specifically configured to:

The fourth numerical value is determined by the following formula:

Wherein, A' represents the fourth numerical value, a 1 , a 2 , a 3 and a 4 are freely selectable parameters, and RSSI T1 and RSSI T2 respectively represent the inversion of the two tags T1 and T2 at the first time RSSI of the scattered signal, RSSI' T1 and RSSI' T2 respectively represent the RSSI of the backscattered signal of the two tags T1 and T2 at the second time, respectively,
and
respectively represent the RSSI of the respective backscattered signals of the two tags T1 and T2 when the structure is in the closed state.
The controller according to claim 52 or 53, wherein the controller is specifically used for:

The fifth numerical value is determined by the following formula:

Among them, B' represents the fifth value, b 1 , b 2 , b 3 and b 4 are freely selectable parameters,
and
respectively represent the phase information of the backscattered signals of the two tags T1 and T2 at the first time, respectively,
and
respectively represent the phase information of the backscattered signals of the two tags T1 and T2 at the second time, respectively,
and
respectively represent the phase information of the respective backscattered signals of the two tags T1 and T2 when the structure is in a closed state.
The controller according to any one of claims 52-54, wherein the controller is specifically used for:

The sixth numerical value is determined by the following formula:

P'=αA'+βB'

Among them, P' represents the third value, α and β are freely selectable parameters, A' represents the first value, and B' represents the second value.
The controller according to any one of claims 52-55, wherein the controller is specifically used for:

If the sixth numerical value is less than the preset threshold, determining that the structure is in a closed state;

If the sixth value is greater than or equal to the preset threshold, it is determined that the structure is in an open state.
The controller according to any one of claims 52-55, wherein the controller is specifically used for:

If the sixth value is less than or equal to the preset threshold, determining that the structure is in a closed state;

If the sixth value is greater than the preset threshold, it is determined that the structure is in an open state.
A sensor, characterized in that it includes two labels, the two labels are respectively arranged on a fixed component and a moving component, a light-emitting unit is arranged on the first label of the two labels, and the second label includes: an antenna , chip and photosensitive unit;

the light-emitting unit of the first label is used to generate emitted light;

The photosensitive unit of the second label is used for sensing the emitted light;

The chip of the second tag is used to obtain perception information;

The antenna of the second tag is used for sending the sensing information to the controller, so that the controller determines the opening and closing state of the structure including the fixed component and the moving component according to the sensing information.
The sensor according to claim 58, wherein the sensing information is used to indicate whether the sensing unit senses light or whether the RSSI of the sensed light is greater than a preset intensity.
A sensor according to claim 58 or 59, characterized in that,

The antenna of the first tag and the antenna of the second tag are also used to receive the continuous wave sent by the controller;

The antenna of the second tag is further configured to send backscattered signals to the controller by means of backscattering;

Wherein, the sensing information is carried in the backscattered signal.
The sensor of claim 60, wherein:

The backscattered signal also carries the identification of the second tag.
The sensor according to claim 60 or 61, wherein the identification of the second tag is represented by the access address of the second tag and the identification of the sensor.
The sensor according to any one of claims 60-62, characterized in that,

The backscattered signal further includes: a preamble and a CRC of the backscattered signal.
The sensor according to any one of claims 60-63, characterized in that,

The antenna of the second tag is further configured to receive control information sent by the controller, where the control information is used to instruct the second tag to send the backscattered signal.
The sensor according to any one of claims 60-64, characterized in that,

The chip of the first tag and the chip of the second tag are also used to convert the energy of the continuous wave into direct current energy to supply power to the sensor.
A controller, characterized in that the controller is used for:

Receive the sensing information sent by the antenna of the second tag of the sensor;

Determine the opening and closing state of the structure including the fixed component and the moving component according to the sensing information;

Wherein, the sensor includes two labels, the two labels are respectively arranged on the fixed component and the moving component, a light-emitting unit is arranged on the first label of the two labels, and a light-emitting unit is arranged on the second label. There are a photosensitive unit, a chip and an antenna. The light-emitting unit of the first label is used to generate emitted light; the photosensitive unit of the second label senses the emitted light, and the chip of the second label is used to obtain the sensing information .
The controller according to claim 66, wherein the sensing information is used to indicate whether the sensing unit senses light or whether the RSSI of the sensed light is greater than a preset intensity.
The controller of claim 67, wherein the controller is specifically configured to:

If the controller determines that the sensing unit senses light, determining that the structure is in a closed state;

If the controller determines that the sensing unit does not sense light, it determines that the structure is in an open state.
The controller of claim 67, wherein the controller is specifically configured to:

If the controller determines that the sensing unit senses that the RSSI of light is greater than a preset intensity, then determine that the structure is in a closed state;

If the controller determines that the RSSI of the light sensed by the sensing unit is less than or equal to the preset intensity, it is determined that the structure is in an open state.
The controller of claim 67, wherein the controller is specifically configured to:

If the controller determines that the sensing unit senses that the RSSI of light is greater than or equal to a preset intensity, then determine that the structure is in a closed state;

If the controller determines that the RSSI of the light sensed by the sensing unit is less than the preset intensity, it is determined that the structure is in an open state.
A wireless communication system, comprising: the sensor according to any one of claims 36-41, and the controller according to any one of claims 42-57.
A wireless communication system, comprising: the sensor according to any one of claims 58-65, and the controller according to any one of claims 66-70.
An apparatus, characterized by comprising: a processor for calling and running a computer program from a memory, so that a device in which the apparatus is installed executes the method according to any one of claims 1 to 6.
An apparatus is characterized by comprising: a processor for invoking and running a computer program from a memory, so that a device in which the apparatus is installed executes the method according to any one of claims 7 to 22.
An apparatus, characterized by comprising: a processor for calling and running a computer program from a memory, so that a device in which the apparatus is installed executes the method according to any one of claims 23 to 30.
An apparatus, characterized by comprising: a processor for invoking and running a computer program from a memory, so that a device in which the apparatus is installed executes the method according to any one of claims 31 to 35.
A computer-readable storage medium, characterized by being used for storing a computer program, the computer program causing a computer to execute the method according to any one of claims 1 to 6.
A computer-readable storage medium, characterized by being used for storing a computer program, the computer program causing a computer to execute the method according to any one of claims 7 to 22.
A computer-readable storage medium, characterized by being used for storing a computer program, the computer program causing a computer to execute the method according to any one of claims 23 to 30.
A computer-readable storage medium, characterized by being used for storing a computer program, the computer program causing a computer to execute the method according to any one of claims 31 to 35.
A computer program product comprising computer program instructions, the computer program instructions causing a computer to perform the method of any one of claims 1 to 6.
A computer program product comprising computer program instructions, the computer program instructions causing a computer to perform the method of any one of claims 7 to 22.
A computer program product comprising computer program instructions, the computer program instructions causing a computer to perform the method of any one of claims 23 to 30.
A computer program product comprising computer program instructions, the computer program instructions causing a computer to perform the method of any one of claims 31 to 35.
A computer program, characterized in that the computer program causes a computer to perform the method according to any one of claims 1 to 6.
A computer program, characterized in that the computer program causes a computer to perform the method according to any one of claims 7 to 22.
A computer program, characterized in that the computer program causes a computer to perform the method according to any one of claims 23 to 30.
A computer program, characterized in that the computer program causes a computer to perform the method as claimed in any one of claims 31 to 35.