CN115398929A

CN115398929A - Control method of Internet of things equipment and communication device

Info

Publication number: CN115398929A
Application number: CN202080099512.1A
Authority: CN
Inventors: 邵帅
Original assignee: Guangdong Oppo Mobile Telecommunications Corp Ltd
Current assignee: Guangdong Oppo Mobile Telecommunications Corp Ltd
Priority date: 2020-07-10
Filing date: 2020-07-10
Publication date: 2022-11-25
Also published as: WO2022006908A1

Abstract

A control method of Internet of things equipment comprises the following steps: receiving an inquiry signal sent by control equipment; responding to the inquiry signal, and sending equipment information to the control equipment through a backscattering technology, wherein the equipment information comprises an equipment identifier and a first equipment state of the equipment of the Internet of things; receiving a first control signal sent by control equipment; and if the first control signal comprises the equipment identifier of the Internet of things equipment, switching the first equipment state to the second equipment state according to the first control signal. By the method, the control of the Internet of things equipment in a short distance, quickly and low power consumption manner through the control equipment can be realized.

Description

Control method of Internet of things equipment and communication device

Technical Field

The application relates to the technical field of communication, in particular to a control method and a communication device for Internet of things equipment.

Background

The Internet of Things (IoT), namely the Internet with all Things connected, is an extended and expanded network based on the Internet, and combines various information sensing devices with the Internet to form a huge network. By using the technology of the internet of things, the intelligent sensing system can realize the control of the on and off of the IoT device by sensing the distance between the mobile device and the IoT device.

At present, short-distance wireless transmission standards such as Bluetooth, WIFI and Zigbee are mainly applied to an intelligent sensing system, but the system with the wireless transmission standards has the defects of high power consumption, high delay and high distance control difficulty. For example, the current IoT devices not only need to support the control power supply of their logic circuits, but also need more energy to perform the wireless transmission and reception operations, so that the power consumption of the system increases; for another example, the wireless technology communication system in the current IoT device is complex, and a complex application layer standard protocol needs to be completed during bidirectional communication, so that the system latency is high; for another example, an intelligent sensing system applying bluetooth, WIFI, and Zigbee needs to implement ranging by using auxiliary means such as RSSI, AOA, and TOF for detecting signals, but these auxiliary means can only measure distances greater than 20 meters in general, and it is difficult to complete measurement of shorter distances.

Disclosure of Invention

The application discloses a control method and a communication device of Internet of things equipment, which can realize the control of the Internet of things equipment in a short-distance, quick and low-power-consumption manner through control equipment.

In a first aspect, an embodiment of the present application provides a control method for an internet of things device, which is applied to the internet of things device, and the method includes:

receiving an inquiry signal sent by a control device;

responding to the inquiry signal, and sending equipment information to the control equipment through a backscattering technology, wherein the equipment information comprises an equipment identifier and a first equipment state of the equipment of the Internet of things;

receiving a first control signal sent by control equipment;

and if the first control signal comprises the equipment identifier of the Internet of things equipment, switching the first equipment state to the second equipment state according to the first control signal.

In one embodiment, at least one continuous wave signal transmitted by the control device is received before the device information is transmitted to the control device by the backscatter technique in response to the interrogation signal; and acquiring signal energy through at least one continuous wave signal, wherein the signal energy is used for supplying power to the equipment of the Internet of things.

In an embodiment, if the first control signal includes the device identifier of the internet of things device, after the first device state is switched to the second device state according to the first control signal, the control device sends the confirmation information, where the confirmation information includes the device identifier of the internet of things device and the second device state.

In one embodiment, before sending the confirmation information to the control device, receiving at least one continuous wave signal sent by the control device; and acquiring signal energy through at least one continuous wave signal, wherein the signal energy is used for supplying power to the equipment of the Internet of things.

In an embodiment, if the first control signal includes a device identifier of the internet of things device, after the state of the first device is switched to the state of the second device according to the first control signal, if the second control signal of the internet of things device is not received within a preset time period after the state of the first device is switched to the state of the second device according to the first control signal, the state of the second device is switched to the state of the first device.

In one embodiment, the challenge signal further comprises a random number instruction.

In one embodiment, before sending the device information to the control device by the backscattering technique in response to the challenge signal, a first random number and a second random number are generated according to a random number instruction; obtaining a difference value between the first random number and the second random number; and if the difference value is less than 0, determining to send the equipment information to the control equipment.

In one embodiment, a plurality of inquiry signals sent by the control device are received before the device information is sent to the control device by the backscattering technique in response to the inquiry signals; generating a first random number and a second random number; when receiving an inquiry signal sent by the control equipment, taking the difference value between the first random number and the second random number as an updated first random number; if the first random number obtained by latest updating is greater than or equal to 0, when a next inquiry signal sent by the control equipment is received, taking the difference value between the first random number obtained by latest updating and the second random number as the updated first random number until the first random number obtained by latest updating is less than 0; and if the first random number obtained by the latest updating is less than 0, determining to send the equipment information to the control equipment.

In one embodiment, the query signal is further used to indicate a sum of the number of devices in the environment to which the devices in the internet of things belong.

In one embodiment, before sending device information to the control device by backscattering technology in response to the interrogation signal, receiving a plurality of interrogation signals sent by the control device; acquiring a quantity threshold of the Internet of things equipment according to the quantity sum of the Internet of things equipment in the environment where the Internet of things equipment belongs; if the number of received inquiry signals reaches a number threshold, it is determined to transmit device information to the control device.

In a second aspect, an embodiment of the present application provides a control method for an internet of things device, which is applied to a control device, and the method includes:

sending an inquiry signal to at least one Internet of things device;

receiving at least one piece of equipment information sent by at least one piece of Internet of things equipment through a backscattering technology, wherein the at least one piece of equipment information comprises an equipment identifier of each piece of Internet of things equipment in the at least one piece of Internet of things equipment and a first equipment state of each piece of Internet of things equipment;

generating a first control signal according to the at least one piece of equipment information, wherein the first control signal comprises an equipment identifier of at least one piece of internet of things equipment, and the first control signal is used for indicating that each equipment identifier corresponds to the internet of things equipment and is switched from a first equipment state of each internet of things equipment to a second equipment state of each internet of things equipment;

sending a first control signal to at least one piece of Internet of things equipment;

receiving at least one piece of confirmation information sent by at least one piece of Internet of things equipment, wherein each piece of confirmation information in the at least one piece of confirmation information comprises an equipment identifier and a second equipment state of the piece of Internet of things equipment corresponding to each piece of confirmation information.

In an embodiment, before receiving at least one piece of device information sent by at least one internet of things device through a backscattering technology, at least one continuous wave signal is sent to the at least one internet of things device, and the at least one continuous wave signal is used for providing signal energy.

In an embodiment, before receiving at least one piece of confirmation information sent by at least one internet of things device, at least one continuous wave signal is sent to the at least one internet of things device, and the at least one continuous wave signal is used for providing signal energy.

In a third aspect, an embodiment of the present application provides a communication device, which is applied to an internet of things device, and includes:

the receiving and sending unit is used for receiving an inquiry signal sent by the control equipment;

the receiving and sending unit is further used for responding to the inquiry signal and sending equipment information to the control equipment through a backscattering technology, wherein the equipment information comprises an equipment identifier and a first equipment state of the equipment of the Internet of things;

the receiving and sending unit is also used for receiving a first control signal sent by the control equipment;

and the processing unit is used for switching the first equipment state to the second equipment state according to the first control signal if the first control signal comprises the equipment identifier of the Internet of things equipment.

In a fourth aspect, an embodiment of the present application provides a communication apparatus, which is applied to a control device, and includes:

the receiving and sending unit is used for sending an inquiry signal to at least one piece of Internet of things equipment;

the receiving and sending unit is further configured to receive at least one piece of device information sent by at least one piece of internet-of-things device through a backscattering technology, where the at least one piece of device information includes a device identifier of each piece of internet-of-things device in the at least one piece of internet-of-things device and a first device state of each piece of internet-of-things device;

the processing unit is used for generating a first control signal according to the at least one piece of equipment information, the first control signal comprises equipment identifiers of at least one piece of Internet of things equipment, and the first control signal is used for indicating that each equipment identifier corresponds to the Internet of things equipment and is switched from a first equipment state of each Internet of things equipment to a second equipment state of each Internet of things equipment;

the receiving and sending unit is further used for sending a first control signal to at least one piece of Internet of things equipment;

the receiving and sending unit is further configured to receive at least one piece of acknowledgement information sent by at least one piece of internet of things equipment, where each piece of acknowledgement information in the at least one piece of acknowledgement information includes an equipment identifier and a second equipment state of the piece of internet of things equipment corresponding to each piece of acknowledgement information.

In a fifth aspect, the present application provides a communication apparatus, including a processor, a memory and a user interface, where the processor, the memory and the user interface are connected to each other, where the memory is used to store a computer program, the computer program includes program instructions, and the processor is configured to call the program instructions, and perform the method for controlling the internet of things device as described in the first aspect, or the method for controlling the internet of things device as described in the second aspect.

In a sixth aspect, embodiments of the present application provide a computer-readable storage medium, where one or more instructions are stored, and the one or more instructions are adapted to be loaded by a processor and executed to perform the method for controlling an internet of things device as described in the first aspect, or the method for controlling an internet of things device as described in the second aspect.

In the embodiment of the application, the equipment of the internet of things receives an inquiry signal sent by the control equipment; responding to the inquiry signal, and sending equipment information to the control equipment through a backscattering technology, wherein the equipment information comprises an equipment identifier and a first equipment state of the equipment of the Internet of things; receiving a first control signal sent by control equipment; and if the first control signal comprises the equipment identifier of the Internet of things equipment, switching the first equipment state to the second equipment state according to the first control signal. By the method, the control of the Internet of things equipment in a short distance, quickly and low power consumption manner through the control equipment can be realized.

Drawings

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

Fig. 1a is a schematic view of an internet of things device control application in a home scene according to an embodiment of the present application;

FIG. 1b is a schematic diagram of an Internet of things device control application in a golf course water spray scene provided by an embodiment of the present application;

fig. 2a is a hardware architecture diagram of a backscatter transmitting and receiving device according to an embodiment of the present application;

fig. 2b is a diagram of a hardware architecture of another backscatter transmitting and receiving device according to an embodiment of the present application;

fig. 2c is a hardware architecture diagram of another backscatter transceiver device provided in an embodiment of the present application;

fig. 3 is a hardware architecture diagram of a control device according to an embodiment of the present disclosure;

fig. 4 is a schematic flowchart of a control method for an internet of things device according to an embodiment of the present application;

fig. 5 is a schematic diagram of an interrogation signal transmission or reception method according to an embodiment of the present application;

fig. 6 is a schematic diagram of a control signal sending or receiving method according to an embodiment of the present disclosure;

fig. 7 is a schematic flowchart of another control method for internet of things equipment according to the embodiment of the present application;

fig. 8 is a schematic flowchart of a control method for an internet of things device according to an embodiment of the present application;

fig. 9 is a schematic diagram of elements of a communication device according to an embodiment of the present application;

fig. 10 is a simplified block diagram of a communication device according to an embodiment of the present disclosure.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention.

In order to better understand the embodiments of the present application, the following terms refer to the embodiments of the present application:

the Internet of Things (IoT) is to collect any object or process needing monitoring, connection and interaction in real time and collect various required information such as sound, light, heat, electricity, mechanics, chemistry, biology and location through various devices and technologies such as various information sensors, radio frequency identification technologies, global positioning systems, infrared sensors and laser scanners, and to realize the ubiquitous connection of objects and people through various possible network accesses, and to realize intelligent sensing, identification and management of objects and processes. Common IoT devices may include smart lights, sweeping robots, smart curtains, lawn sprinkler systems, and the like.

Backscattering (Back Scatter): refers to the reflection of waves, particles or signals back from their direction of arrival. The device can reflect the transmitted signal without generating signal, thereby achieving the purpose of information exchange. The backscattered signal from the device may carry information from the device or may imply location information of the device. The backscattering technology can be used for accurately measuring the distance between equipment or objects, and has the characteristics of low power consumption and low delay.

Continuous Wave (CW): the laser outputs waves in a continuous manner rather than a pulsed manner. The continuous waves can be captured and converted into energy by the Internet of things equipment, so that power is supplied to a backscattering transceiver in the Internet of things equipment.

In order to better understand the embodiments of the present application, a network architecture to which the embodiments of the present application are applicable is described below.

Referring to fig. 1a and fig. 1b, fig. 1a is a schematic view of an internet of things device control application in a home scenario according to an embodiment of the present application. As shown in fig. 1a, the home scenario may include an internet of things device 1, an internet of things device 2, an internet of things device 3, and a control device. The Internet of things equipment can be operated by sensing moving objects or equipment to open or close, and can be a sweeping robot, an intelligent lamp, an intelligent curtain, an intelligent air purifier, an intelligent air conditioner or an intelligent fan heater and the like. The control device may be a mobile terminal device, a wearable terminal device, or the like, such as a mobile phone, a tablet computer, or an intelligent bracelet. As shown in the figure, the internet of things device 1 is an intelligent lamp, the internet of things device 2 is a floor sweeping robot, the internet of things device 3 is an intelligent curtain, and the control device is a mobile phone. Certainly, a home scene may include more than 3 internet of things devices and more than 1 control device, and the embodiment of the present application is not limited. In the application scenario, if the internet of things device receives an inquiry signal sent by the control device, the on or off operation may be implemented through a series of operations, that is, when the internet of things device detects that the control device is approaching, the corresponding on or off operation may be performed. It should be noted that approaching may refer to that a distance between the control device and the internet of things device is within a range of 10 meters, or the internet of things device may receive a signal sent by the control device. For example, the current state of the internet of things device 1, that is, the smart lamp, is off, and if a signal sent by the control device is detected, the state can be switched to the on state. For another example, the internet of things device 2, that is, the sweeping robot, may be switched to the off state when the current state is the on state and a signal sent by the control device is detected. Certainly, the internet of things device 2 does not necessarily enter the off state after detecting the signal sent by the control device, and may continue to work, that is, the working state of the internet of things device and whether the signal sent by the control device is detected are not the only relationship, and may be configured by a user, a developer, or an artificial intelligence system.

Fig. 1b is a schematic diagram of an internet of things device control application in a golf course water spraying scene. As shown in fig. 1b, the golf course water spraying scene may also include an internet of things device 1, an internet of things device 2, an internet of things device 3, and a control device. This thing networking device 1 ~ thing networking device 3 all can be water jet equipment, and this water jet equipment is arranged in spraying the meadow with high-pressure water, and thing networking device 1 ~ thing networking device 3 can be the equipment that needs be in the state of opening for a long time. The control device may be mounted or integrated on a golf cart or may be worn by a professional driver. When the internet of things device 1 detects a signal sent by the control device, the current working state can be suspended, so that high-pressure water of the internet of things device 1 can be prevented from being sprayed to the golf cart; after the internet of things device 1 is based on the principle of the golf cart, the internet of things device 1 can enter the working state again so as to continue to irrigate the lawn. Similarly, the internet of things devices 2 to 3 may also implement the same functions as the internet of things device 1.

Of course, the embodiment of the application may not be limited to the above home scenario and golf course water spraying scenario, but may also be adapted to an application scenario in which various internet of things devices and control devices cooperate, and the embodiment of the application is not limited.

As shown in fig. 2a, fig. 2b and fig. 2c, the embodiment of the present application provides hardware architecture diagrams of three types of backscatter transmitting and receiving devices. The backscatter transceiving means as shown in figure 2a comprises an antenna, radio frequency energy capture, receiver, backscatter transmitter, energy management, and microprocessor. The microprocessor in the backscatter transceiver in fig. 2a may output a signal to the internet of things equipment control module, which may control the on or off of the internet of things equipment. Wherein the output signal may be a single binary signal, such as 0 for "off" and 1 for "off". The rf energy harvesting device of fig. 2a may harvest rf energy to power the backscatter transceiving means.

The backscatter transceiving means as shown in fig. 2b comprises an antenna, a receiver, a backscatter transmitter, energy management, and a microprocessor. The backscattering transceiver does not include radio frequency energy capture, and the internet of things equipment comprises an internet of things equipment control module and a power supply. The backscatter transmitting and receiving means is not powered by the capture of radio frequency energy but by a power source carried by the internet of things device.

The backscatter transceiver device shown in fig. 2c includes an antenna, radio frequency energy capture, a receiver, a backscatter transmitter, energy management, and a microprocessor. The Internet of things equipment also comprises an Internet of things equipment control module, a switch and a power supply. The backscattering transceiver can control the power supply and the Internet of things equipment control module to supply power to the backscattering transceiver through the control switch. When the backscattering transceiver does not receive the signal sent by the control equipment, the switch can be controlled, the switch is connected to the Internet of things control equipment control module, the power supply at the moment is not connected with the backscattering transceiver, and the Internet of things control module can be in a power-down deep sleep mode. The backscatter transmitting and receiving means controls the switch by capturing the resulting radio frequency energy.

In this embodiment, any one of the internet of things devices shown in fig. 1a and 1b may include any one of 3 backscatter transceiving devices shown in fig. 2a, 2b, and 2 c.

As shown in fig. 3, an embodiment of the present application provides a hardware architecture diagram of a control device. The control device may be an intelligent terminal integrated with a radio frequency front end. The radio frequency front end comprises an antenna, a transmitter and a receiver. The control equipment also comprises a modulation and demodulation module and a Central Processing Unit (CPU). In the control apparatus shown in fig. 3, the modem module may transmit Continuous Waves (CW), the modems included in the modem module and the radio Frequency front end may transmit and receive Amplitude Shift Keying (ASK), frequency-Shift Keying (FSK), and Phase-Shift Keying (PSK) modulated signals. Alternatively, the modem module shown in fig. 3 may be integrated into the central processor. The central processor and the modem module can be implemented by general devices such as a microprocessor or a Field Programmable Gate Array (FPGA).

In order to control the internet of things device in a short-distance, rapid and low-power-consumption manner through the control device, embodiments of the present application provide a control method and a communication device for the internet of things device, and detailed descriptions are further provided below for the control method and the communication device for the internet of things device provided by embodiments of the present application.

Referring to fig. 4, fig. 4 is a schematic flow chart of a control method of an internet of things device according to an embodiment of the present application. The execution subject of this embodiment may be an internet of things device, and the internet of things device may include any one of three backscatter transmitting and receiving apparatuses shown in fig. 2a, fig. 2b, or fig. 2 c. The method may comprise the steps of:

410. and receiving an inquiry signal sent by the control equipment.

Specifically, as shown in fig. 5, the internet of things device may receive the continuous wave signal with the transmission duration Tcw1 sent by the control device, and then receive the query signal with the transmission duration Trequest sent by the control device, and further continue to receive the continuous wave signal with the transmission duration Tcw2 sent by the control device. The continuous wave signals with the transmission duration of Tcw1 indicate that the Internet of things equipment can continuously receive the continuous wave signals within the transmission duration of Tcw1, and the number of the continuous wave signals at the moment can be one or more; the query signal with the transmission duration of Trequest indicates that the internet of things equipment can continuously receive the query signal within the transmission duration of the Trequest, and similarly, the number of the query signals can be one or more; accordingly, the continuous wave signal of the transmission time length Tcw2 indicates that the internet of things device can continuously receive the continuous wave signal within the transmission time length of Tcw 2. The process of signal reception as shown in fig. 5 may cycle through nsearch times. That is to say, the internet of things device may continuously receive the continuous wave signal within the transmission duration of nsearch Tcw1, continuously receive the query signal within the transmission duration of nsearch Trequest, and continuously receive the continuous wave signal within the transmission duration of nsearch Tcw 2. The internet of things equipment can receive at least one continuous wave signal in the total time length of nsearch Tcw1 and nsearch Tcw 2. The radio frequency energy capture module in the equipment of the Internet of things can capture continuous wave signals, converts at least one received continuous wave signal into signal energy, and the signal energy can supply power to a backscattering transceiver in the equipment of the Internet of things. That is, the internet of things device may use the signal energy converted from the received at least one continuous wave signal to perform backscattering. The internet of things equipment needs to continuously receive different signals in different time periods, and the number of the different signals in the different time periods can be the same or different. Because the internet of things equipment has a certain failure rate in receiving signals, the method can ensure that the internet of things equipment receives enough continuous wave signals to convert the continuous wave signals into enough energy, and can also ensure that the internet of things equipment receives inquiry signals.

In one possible implementation, for the backscatter transceiver shown in fig. 2b, since the backscatter transceiver does not include a radio frequency energy capture module, the internet of things device including the backscatter transceiver cannot obtain energy from the continuous wave signal, but provides energy to backscatter the signal through its own power supply. The internet-of-things device may not receive the continuous wave signal but receive the query signal, may continuously receive the query signal for the transmission duration of Trequest, and may cycle through nsearch times, that is, continuously receive the query signal for the transmission duration of nsearch Trequest. By the method, the equipment of the Internet of things can be ensured to receive the inquiry signal.

420. And sending equipment information to the control equipment through a backscattering technology in response to the inquiry signal, wherein the equipment information comprises the equipment identification and the first equipment state of the equipment of the Internet of things.

Specifically, the internet of things device may send device information to the control device through signal energy converted from the backscatter technology and the at least one continuous wave signal after receiving the inquiry signal, where the device information may include a device identifier of the internet of things device and a first device state of the internet of things device, and the first device state may be a state before the internet of things device receives the inquiry signal. The equipment of the Internet of things can send equipment information to the control equipment by taking continuous waves generated by the equipment of the Internet of things as carriers; the device Identifier of the internet of things device may be a Unique Identifier (UID), and the device status of the internet of things device may be a working status of the internet of things device, such as on or off.

In a possible implementation manner, for the backscatter transmitting and receiving device shown in fig. 2b, since the backscatter transmitting and receiving device does not include a radio frequency energy capture module, the internet of things device including the backscatter transmitting and receiving device may obtain signal energy through a power module, and then send device information to the control device through a backscatter technology and the obtained signal energy.

In a possible implementation manner, before the internet of things device responds to the inquiry signal and sends the device information to the control device through the backscattering technology, the internet of things device may further determine whether to send the device information to the control device. The Internet of things equipment can determine whether to issue and send equipment information to the control equipment by judging whether the Internet of things equipment has the backscattering authority, and if the Internet of things equipment has the backscattering authority, the equipment information is sent to the control equipment. The multipath reflection condition may occur in some application scenes with complex environments, and different internet of things devices may use the same frequency when sending signals to the control device through the backscatter technology, so that signals sent to the control device by the internet of things devices through the backscatter technology collide with each other, and the success rate of receiving the signals by the control device also decreases.

Optionally, the query signal includes a random number instruction, the internet of things device may generate a first random number and a second random number of the internet of things device according to the random number instruction, and then obtain a difference between the first random number and the second random number, and if the difference is smaller than 0, it is determined that the internet of things device has a backscattering permission. The first random number may be a random integer from 0 to n, and the second random number is a random integer greater than 0. And when the difference value obtained by subtracting the second random number from the first random number is less than 0, determining that the Internet of things equipment has the backscattering authority. For example, if the first random number is 5 and the second random number is 6, the difference between the first random number and the second random number is-1, and since-1 is smaller than 0, it is determined that the internet of things device has the backscatter permission.

Optionally, the internet of things device may receive a plurality of inquiry signals sent by the control device, and may generate a first random number and a second random number according to a random number instruction in the inquiry signals, where the first random number may be a random integer from 0 to n, and the second random number is a random integer greater than 0. When receiving an inquiry signal transmitted from the control device, the difference between the first random number and the second random number is used as the updated first random number. If the first random number obtained by updating recently is smaller than 0, determining that the Internet of things equipment has a backscattering authority; and if the first random number obtained by the latest updating is greater than or equal to 0, when a next inquiry signal sent by the control equipment is received, taking the difference value between the first random number obtained by the latest updating and the second random number as the updated first random number until the first random number obtained by the latest updating is less than 0. That is, when the internet of things device receives an inquiry signal, the first random number may be subtracted by a second random number to obtain an updated first random number; when the internet of things equipment receives the next inquiry signal, subtracting a second random number on the basis of the updated first random number, and so on, and determining that the internet of things equipment has the backscattering authority until the first random number is less than 0. For example, if the first random number is 10 and the second random number is 3, the updated first random number will become 7 when the first query signal is received by the internet of things device; receiving a second interrogation signal, the updated first random number becoming 4; receiving a third challenge signal, the updated first random number becoming 1; and when the fourth inquiry signal is received, the updated first random number is changed into-2, and the internet of things equipment determines that the internet of things equipment has the backscattering authority when the fourth inquiry signal is received. By the method, different Internet of things devices have higher probability of backscattering the device information through the same frequency in the same time, and the success rate of receiving the device information of different Internet of things by the control device can be increased. It should be noted that the value of n may be determined according to dimensions such as density and sum of numbers of the internet of things devices in the current environment to which the internet of things devices belong, and the size of n may be intelligently adjusted in multiple dimensions, so as to prevent that a value of the first random number obtained by some internet of things devices is too large and cannot have a backscattering permission later.

Optionally, the inquiry signal may further indicate a sum of the number of the internet of things devices in the environment to which the internet of things device belongs. The number threshold of the internet of things equipment can be obtained by the internet of things equipment according to the total number of the internet of things equipment in the environment where the internet of things equipment belongs. If the number of the received inquiry signals reaches the number threshold value, the device of the internet of things is determined to have the backscattering authority. The quantity threshold may be obtained by setting the control device by the user, may also be obtained by intelligently determining the current environment through analyzing the current environment by the internet of things device, and may also be set by a technician, which is not limited in the embodiment of the present application. For example, the total number of the internet of things devices in the environment to which the internet of things device belongs is 5, and the number threshold obtained by the internet of things device is 3, when the third inquiry signal is received, it is determined that the internet of things device has the backscattering permission.

430. And receiving a first control signal sent by the control equipment.

After the internet of things equipment sends the equipment information to the control equipment, the control equipment generates a first control signal of the internet of things equipment. The internet of things device may receive a first control signal sent by the control device, where the first control signal includes a device identifier of at least one internet of things device. The control device may send the control information to the internet of things device in a broadcast information manner.

Specifically, as shown in fig. 6, the internet of things device may receive the continuous wave signal with the transmission duration Tcw1 sent by the control device, and then receive the control signal with the transmission duration Tcontrol, that is, the first control signal, sent by the control device, so as to continue to receive the continuous wave signal with the transmission duration Tcw2 sent by the control device. The first control signal with the transmission duration of Tcontrol indicates that the internet of things device can continuously receive the first control signal within the transmission duration of Tcontrol, and similarly, the first control signal may also be one or more; the process of signal reception as shown in fig. 6 may loop ncontrol times. That is, the internet-of-things device may continuously receive the continuous wave signal for the ncontrol transmission duration of Tcw1, continuously receive the first control signal for the ncontrol transmission duration of Tcontrol, and continuously receive the continuous wave signal for the ncontrol transmission duration of Tcw 2. The internet of things equipment can receive at least one continuous wave signal in the total time length of ncontrol Tcw1 and ncontrol Tcw 2. The radio frequency energy capture module in the equipment of the Internet of things can capture continuous wave signals, converts at least one received continuous wave signal into signal energy, and the signal energy can supply power to a backscattering transceiver in the equipment of the Internet of things. By the method, the device of the Internet of things can be ensured to receive enough continuous wave signals to be converted into enough energy, and the device of the Internet of things can be ensured to receive the first control signal.

In one possible implementation, for the backscatter transceiver shown in fig. 2b, since the backscatter transceiver does not include a radio frequency energy capture module, the internet of things device including the backscatter transceiver cannot obtain energy from the continuous wave signal, but provides energy to backscatter the signal through its own power supply. The internet-of-things device may not receive the continuous wave signal but receive the first control signal, may receive the first control signal continuously for a transmission duration of Tcontrol, and may cycle ncontrol times, i.e., continuously receive the first control signal for transmission durations of Tcontrol of ncontrol. By the method, the equipment of the Internet of things can be ensured to receive the first control signal.

440. And if the first control signal comprises the equipment identifier of the Internet of things equipment, switching the first equipment state to the second equipment state according to the first control signal.

The first control signal may be sent by the control device in a broadcast information manner, so that all the internet of things devices queried by the control device may receive the first control signal, and if the first control signal includes a device identifier, that is, a UID, of the internet of things device, the first control signal of the internet of things device corresponding to the device identifier may be responded. The first control signal can control the internet of things device to be switched from the first device state to the second device state. The first control signal may be an operation of reversing a state of the internet of things device, for example, before responding to the first control signal, the state of the internet of things device is an on state, that is, a first device state, and after responding to the first control signal, the internet of things device switches the state to an off state, that is, a second device state.

In a possible implementation manner, for the internet of things equipment which needs to maintain one state for a long time, if the internet of things equipment does not receive the second control signal of the internet of things equipment within a preset time length after the state of the internet of things equipment is switched from the first equipment state to the second equipment state according to the first control signal, the state of the internet of things equipment is switched from the second equipment state to the first equipment state. The second control signal may indicate that the internet of things device is switched from the second device state to the first device state. The internet of things equipment can start a countdown timer after being switched to a second equipment state from a first equipment state according to the first control signal, and if the running time of the countdown timer reaches a preset time Tcount, the internet of things equipment is switched to the first equipment state from the second equipment state. For example, for the internet of things device 1 in the golf course water spraying scene as shown in fig. 1b, after the internet of things device 1 in fig. 1b receives the first control signal sent by the control device on the golf cart, the internet of things device switches from the on state (water spraying state) to the off state (water spraying stopping state) according to the first control signal, and simultaneously starts the countdown timer. When the running time of the countdown timer reaches the preset time Tcount, the Internet of things equipment is switched from a closed state (a water spraying stopping state) to an open state (a water spraying state). This is because, when the control device on the golf cart approaches the internet of things device 1, the first control signal may be transmitted to the internet of things device 1. When the control device on the golf cart is far away from the internet of things device 1, the second control signal broadcasted by the control device cannot be received by the internet of things device 1 due to the too far distance, so that the internet of things device 1 is always in a closed state (water spraying stopping state). Therefore, by setting the method for starting the countdown timer, the internet of things equipment can be switched to the original equipment state, namely the first equipment state in time.

After the first control signal of the internet of things device is successfully responded, the internet of things device also sends confirmation information to the control device through a backscattering technology, wherein the confirmation information comprises the device identification and the second device state of the internet of things device.

In a possible implementation manner, before the first control signal that successfully responds to the internet of things device sends the confirmation information to the control device through the backscattering technology, the internet of things device may further determine whether to send the confirmation information to the control device. This determination method has been described in detail in embodiment 420, and is not described in detail here.

Through the embodiment of the application, the internet of things equipment can respond to the inquiry signal and backscattering the equipment information through the energy acquired from at least one continuous wave signal after receiving the inquiry signal and the at least one continuous wave signal which are sent by the control equipment. And then receiving a first control signal and at least one continuous wave signal sent by the control equipment, changing the equipment state of the Internet of things equipment at the moment according to the first control signal, and finally backscattering the confirmation information by using energy acquired from the at least one continuous wave signal. Firstly, the internet of things equipment can obtain energy from at least one continuous wave signal, and then the power consumption of the internet of things equipment is reduced. And secondly, the internet of things equipment adopts a backscattering technology to send information to the control equipment, so that the time delay of information interaction can be reduced. Finally, the backscattering technology adopted by the Internet of things equipment can enable the distance measurement between the Internet of things equipment and the control equipment to be more accurate, and the shorter distance can be measured. Therefore, the control method and the control device can control the Internet of things device in a short distance, quickly and low power consumption mode through the control device.

Referring to fig. 7, fig. 7 is a schematic flow chart of another control method for internet of things equipment according to an embodiment of the present application. The execution subject of the embodiment may be a control device, and the control device may include a control device hardware architecture as shown in fig. 3. The method may comprise the steps of:

710. and sending an inquiry signal to at least one Internet of things device.

Specifically, as shown in fig. 5, the control device may first send a continuous wave signal with a transmission duration Tcw1 to at least one internet of things device, then send an inquiry signal with a transmission duration Trequest, and further continue to send a continuous wave signal with a transmission duration Tcw 2. The transmission process may be cycled nsearch times. The nsearch may be set by a user or a developer, or may be intelligently determined by the control device according to a current application context environment, and the embodiment of the present application is not limited. Nsearch intelligently determined by the control device can ensure that at least one internet of things device receives the inquiry signal and enough continuous wave signals to capture enough signal energy.

720. At least one piece of equipment information sent by at least one piece of Internet of things equipment responding to the inquiry signal through a backscattering technology is received, and the at least one piece of equipment information comprises an equipment identifier of each piece of Internet of things equipment in the at least one piece of Internet of things equipment and a first equipment state of each piece of Internet of things equipment.

After the control device receives at least one piece of device information sent by the at least one piece of internet-of-things device through the backscattering technology in response to the inquiry signal, the control device can perform information sorting on the at least one piece of device information. Specifically, the control device may obtain, from the at least one piece of device information, a device identifier, that is, the UID, and a device state, that is, on or off, of the internet of things device corresponding to each piece of device information. The control device can also calculate Received Signal Strength Indication (RSSI), phase (Phase) and receiving time corresponding to different UIDs through the radio frequency front end as shown in fig. 3. The control device can generate the information into a table, and record the RSSI, the phase, the time and the device state of the internet of things device corresponding to each UID. For example, as shown in table 1, the RSSI of the internet of things device whose UID is AA001 is-58, the phase is 1.89, the receiving time is 12.23.23.798, and the status is off. The control device may count information of the internet of things devices that can be detected in the current environment into the table.

TABLE 1

730. The method comprises the steps of generating a first control signal according to at least one piece of equipment information, wherein the first control signal comprises an equipment identifier of at least one piece of Internet of things equipment, and the first control signal is used for indicating that each equipment identifier corresponds to the Internet of things equipment and is switched from a first equipment state of each Internet of things equipment to a second equipment state of each Internet of things equipment.

The control device can determine at least one piece of internet of things device needing state change by analyzing the RSSI, the phase and the receiving time information corresponding to each UID in the table 1. For example, as shown in table 1, if the control device determines that AA001 and AA003 need to be switched to an on state and AA002 needs to be switched to an off state, a first control signal may be generated according to at least one piece of device information, and at least one piece of internet of things device may be controlled by the first control signal. The control device may determine a corresponding first control signal according to at least one piece of device information in table 1: { open } { UID [ AA001, AA003] } { closed } { UID [ AA002] }.

740. And sending a first control signal to at least one piece of equipment of the Internet of things.

The control device may send the first control signal to the at least one internet of things device by broadcasting information. Specifically, as shown in fig. 6, the control device may first send a continuous wave signal with a transmission time duration Tcw1 to at least one internet of things device, then send a first control signal with a transmission time duration Tcontrol, and then continue to send a continuous wave signal with a transmission time duration Tcw 2. The launch process may cycle ncontrol times. The ncontrol may be set by a user or a developer, or may be intelligently determined by the control device according to a current application scenario environment, or may be determined according to nsearch, and the embodiment of the present application is not limited. The ncontrol intelligently determined by the control device can ensure that the first control signal and enough continuous wave signals are received by at least one internet of things device to capture enough signal energy.

750. Receiving at least one piece of confirmation information sent by at least one piece of Internet of things equipment, wherein each piece of confirmation information in the at least one piece of confirmation information comprises an equipment identifier and a second equipment state of the piece of Internet of things equipment corresponding to each piece of confirmation information.

The control device may update the table previously obtained from the at least one device information based on the received at least one acknowledgement information. For example, if the control device knows from at least one confirmation message that AA001 and AA003 in table 1 have switched to the on state and AA002 has switched to the off state, the contents in table 1 may be updated to obtain the following table 2:

TABLE 2

Through this application embodiment, the controlgear can send inquiry signal and at least one continuous wave signal to at least one thing networking device, and this at least one continuous wave signal can provide signal energy for at least one thing networking device, and then makes thing networking device can send at least one equipment information to the controlgear through backscatter technique and signal energy. The control device may generate a first control signal according to the at least one piece of device information, and the first control signal may change a device state of the internet of things device of which the device state needs to be changed in the at least one piece of internet of things device. The control device may receive at least one piece of confirmation information sent by the internet of things device, so as to update the stored device state of each internet of things device. Because the transmitter included in the control device provides signal gain during the period when the transmitter does not contain an amplifier class, the communication distance between the control device and the internet of things device is short, and communication can be carried out within the range of less than 10 meters. Therefore, the position information of the internet of things equipment is hidden in the back scattering signal of the internet of things equipment, and the control equipment can accurately control the internet of things equipment in a small range.

Referring to fig. 8, fig. 8 is a schematic flow chart of a control method for an internet of things device according to an embodiment of the present application. The execution main body of the embodiment comprises a control device and at least one internet of things device. In practical application, the number of the internet of things devices can be more than 3, and the embodiment of the application takes 3 internet of things devices, namely, the internet of things device 1, the internet of things device 2 and the internet of things device 3 as examples. The control method of the Internet of things equipment can comprise the following steps:

810. the control device sends an inquiry signal to at least one internet of things device.

820. And the at least one Internet of things device sends at least one piece of device information to the control device through a backscattering technology.

830. The control device generates a first control signal according to the at least one device information.

840. The control equipment sends a first control signal to at least one piece of Internet of things equipment.

850. If each piece of Internet of things equipment in at least one piece of Internet of things equipment detects that the first control signal comprises the equipment identifier of the Internet of things equipment, the state of the first equipment is switched to the state of the second equipment according to the first control signal.

860. And at least one piece of Internet of things equipment sends at least one piece of confirmation information to the control equipment through a backscattering technology.

Through the embodiment of the application, the control equipment and the Internet of things equipment carry out signal interaction through the backscattering technology, and the advantages of the backscattering technology, such as low power consumption, low time delay and accurate distance measurement, can be inherited, so that the control equipment can control the Internet of things equipment in a short distance, fast and low power consumption manner.

Referring to fig. 9, fig. 9 is a schematic diagram of a communication device according to an embodiment of the present disclosure. The control device of the internet of things device shown in fig. 9 may be used to perform some or all of the functions in the method embodiments described in fig. 4, 7 and 8. The device can be an internet of things device or a control device, can also be a device in the internet of things device or the control device, or can be matched with the internet of things device or the control device for use. The logical structure of the apparatus may include: a transceiving unit 910 and a processing unit 920. When the device is applied to the Internet of things equipment:

a transceiving unit 910, configured to receive an inquiry signal sent by a control device;

the transceiver unit 910 is further configured to send, in response to the query signal, device information to the control device through a backscattering technology, where the device information includes a device identifier of the internet of things device and a first device status;

the transceiver unit 910 is further configured to receive a first control signal sent by a control device;

the processing unit 920 is configured to switch the first device state to the second device state according to the first control signal if the first control signal includes a device identifier of the internet of things device.

In a possible implementation manner, the transceiving unit 910 is further configured to receive at least one continuous wave signal sent by the control device before sending the device information to the control device through a backscatter technique in response to the query signal; and acquiring signal energy through at least one continuous wave signal, wherein the signal energy is used for supplying power to the equipment of the Internet of things.

In a possible implementation manner, if the first control signal includes a device identifier of the internet of things device, after the first device state is switched to the second device state according to the first control signal, the transceiver unit 910 is further configured to send confirmation information to the control device, where the confirmation information includes the device identifier of the internet of things device and the second device state.

In a possible implementation manner, the transceiver unit 910 is further configured to receive at least one continuous wave signal sent by the control device before sending the acknowledgement information to the control device; the processing unit 920 is further configured to obtain signal energy through at least one continuous wave signal, where the signal energy is used to supply power to the internet of things device.

In a possible implementation manner, if the first control signal includes an equipment identifier of the internet of things equipment, after the first control signal is switched from the first equipment state to the second equipment state according to the first control signal, if the second control signal to the internet of things equipment is not received within a preset time period after the first control signal is switched from the first equipment state to the second equipment state, the transceiver unit 910 is further configured to switch the second equipment state to the first equipment state.

In one possible implementation, the challenge signal further comprises a random number instruction.

In a possible implementation manner, before sending the device information to the control device by using a backscattering technique in response to the query signal, the processing unit 920 is further configured to generate a first random number and a second random number according to the random number instruction; obtaining a difference value between the first random number and the second random number; if the difference is smaller than 0, it is determined that the transceiving unit 910 is further configured to send device information to the control device.

In a possible implementation manner, before sending the device information to the control device through the backscattering technology in response to the query signal, the transceiver unit 910 is further configured to receive a plurality of query signals sent by the control device; the processing unit 920 is further configured to generate a first random number and a second random number; when receiving an inquiry signal sent by the control equipment, taking the difference value between the first random number and the second random number as an updated first random number; if the first random number obtained by latest updating is greater than or equal to 0, when a next inquiry signal sent by the control equipment is received, taking the difference value between the first random number obtained by latest updating and the second random number as the updated first random number until the first random number obtained by latest updating is less than 0; if the first random number obtained by the latest update is smaller than 0, it is determined that the transceiver unit 910 is further configured to send device information to the control device.

In one possible implementation, the query signal is further used to indicate a sum of the number of devices in the environment to which the devices in the internet of things belong.

In a possible implementation manner, before sending the device information to the control device by using a backscattering technique in response to the query signal, the transceiver unit 910 is further configured to receive a plurality of query signals sent by the control device; the processing unit 920 is further configured to obtain a quantity threshold of the internet of things devices according to a sum of the quantity of the internet of things devices in the environment to which the internet of things devices belong; if the number of received inquiry signals reaches a number threshold, it is determined to send device information to the control device.

When the apparatus is applied to a control device:

the transceiving unit 910 is configured to send an inquiry signal to at least one internet of things device;

the transceiver unit 910 is further configured to receive at least one piece of device information sent by at least one internet of things device through a backscattering technology, where the at least one piece of device information includes a device identifier of each internet of things device in the at least one internet of things device and a first device state of each internet of things device;

the processing unit 920 is configured to generate a first control signal according to the at least one piece of device information, where the first control signal includes a device identifier of at least one piece of internet-of-things device, and the first control signal is used to instruct, corresponding to each device identifier, that the internet-of-things device is switched from a first device state of each internet-of-things device to a second device state of each internet-of-things device;

the transceiver unit 910 is further configured to send a first control signal to at least one internet of things device;

the transceiver unit 910 is further configured to receive at least one piece of acknowledgement information sent by at least one piece of internet of things equipment, where each piece of acknowledgement information in the at least one piece of acknowledgement information includes an equipment identifier and a second equipment state of the internet of things equipment corresponding to each piece of acknowledgement information.

In a possible implementation manner, the transceiver unit 910 is further configured to send at least one continuous wave signal to at least one internet of things device before receiving at least one device information sent by the at least one internet of things device through a backscatter technology, where the at least one continuous wave signal is used to provide signal energy.

In a possible implementation manner, the transceiver unit 910 is further configured to transmit at least one continuous wave signal to the at least one internet of things device before receiving the at least one piece of acknowledgement information transmitted by the at least one internet of things device, where the at least one continuous wave signal is used to provide signal energy.

Referring to fig. 10, fig. 10 is a simplified schematic diagram of a physical structure of a communication apparatus according to an embodiment of the present disclosure, where the apparatus includes a processor 1010, a memory 1020, and a communication interface 1030, and the processor 1010, the memory 1020, and the communication interface 1030 are connected by one or more communication buses.

The processor 1010 is configured to support the communication device to perform the corresponding functions of the methods of fig. 2, 5, and 8. The processor 1010 may be a Central Processing Unit (CPU), a Network Processor (NP), a hardware chip, or any combination thereof.

The memory 1020 is used to store program codes and the like. Memory 1020 may include volatile memory (volatile memory), such as Random Access Memory (RAM); the memory 1020 may also include a non-volatile memory (non-volatile memory), such as a read-only memory (ROM), a flash memory (flash memory), a Hard Disk Drive (HDD), or a solid-state drive (SSD); memory 1020 may also include a combination of memories of the sort described above.

The communication interface 1030 is used for transceiving data, information, messages, or the like, and may also be described as a transceiver, transceiving circuitry, or the like.

In the embodiment of the present application, when the control apparatus of the internet of things device is applied to the internet of things device, the processor 1010 may call the program code stored in the memory 1020 to perform the following operations:

the control communication interface 1030 receives an inquiry signal transmitted by the control device;

the control communication interface 1030 responds to the inquiry signal and sends equipment information to the control equipment through a backscattering technology, wherein the equipment information comprises an equipment identifier and a first equipment state of the equipment of the internet of things;

the control communication interface 1030 receives a first control signal sent by the control device;

the processor 1010 invokes the program code stored in the memory 1020 to switch from the first device state to the second device state based on the first control signal if the first control signal comprises the device identification of the internet of things device.

In one possible implementation, the control communication interface 1030 receives at least one continuous wave signal transmitted by the control device before transmitting device information to the control device via backscatter techniques in response to the interrogation signal; and acquiring signal energy through at least one continuous wave signal, wherein the signal energy is used for supplying power for the equipment of the Internet of things.

In a possible implementation manner, if the first control signal includes the device identifier of the internet of things device, after the first device state is switched to the second device state according to the first control signal, the control communication interface 1030 sends the confirmation information to the control device, where the confirmation information includes the device identifier of the internet of things device and the second device state.

In one possible implementation, the control communication interface 1030 receives at least one continuous wave signal sent by the control device before sending the acknowledgement information to the control device; the processor 1010 invokes program code stored in the memory 1020 to obtain signal energy from at least one continuous wave signal, the signal energy being used to power the internet of things device.

In a possible implementation manner, if the first control signal includes an equipment identifier of the internet of things equipment, after the first equipment state is switched to the second equipment state according to the first control signal, if the second control signal of the internet of things equipment is not received within a preset time period after the first equipment state is switched to the second equipment state according to the first control signal, the communication interface 1030 is controlled to be switched to the first equipment state from the second equipment state.

In one possible implementation, the challenge signal further includes a random number instruction.

In one possible implementation, before sending the device information to the control device via backscatter techniques in response to the challenge signal, the processor 1010 invokes program code stored in the memory 1020 to generate a first random number and a second random number according to a random number instruction; acquiring a difference value between the first random number and the second random number; if the difference is less than 0, it is determined that the control communication interface 1030 transmits the device information to the control device.

In one possible implementation, before sending device information to the control device via backscatter technology in response to the query signal, the control communication interface 1030 receives a plurality of query signals sent by the control device; processor 1010 invokes program code stored in memory 1020 to generate a first random number and a second random number; when receiving an inquiry signal sent by the control equipment, taking the difference value between the first random number and the second random number as an updated first random number; if the first random number obtained by latest updating is greater than or equal to 0, when a next inquiry signal sent by the control equipment is received, taking the difference value between the first random number obtained by latest updating and the second random number as the updated first random number until the first random number obtained by latest updating is less than 0; if the first random number obtained by the latest update is less than 0, it is determined that the control communication interface 1030 transmits the device information to the control device.

In one possible implementation, the query signal is further used to indicate a sum of the number of internet-of-things devices in the environment to which the internet-of-things device belongs.

In one possible implementation, before sending device information to the control device via backscatter technology in response to the query signal, the control communication interface 1030 receives a plurality of query signals sent by the control device; the processor 1010 calls the program codes stored in the memory 1020 to obtain the quantity threshold of the internet of things equipment according to the sum of the quantity of the internet of things equipment in the environment where the internet of things equipment belongs; if the number of received inquiry signals reaches a number threshold, it is determined to send device information to the control device.

In an embodiment of the application, when the apparatus is applied to a control device, the processor 1010 may call the program code stored in the memory 1020 to perform the following operations:

the control communication interface 1030 sends an inquiry signal to at least one internet of things device;

the control communication interface 1030 receives at least one piece of equipment information sent by at least one piece of internet-of-things equipment through a backscattering technology, wherein the at least one piece of equipment information comprises an equipment identifier of each piece of internet-of-things equipment in the at least one piece of internet-of-things equipment and a first equipment state of each piece of internet-of-things equipment;

the processor 1010 calls the program code stored in the memory 1020 to generate a first control signal according to the at least one piece of device information, the first control signal includes a device identifier of the at least one piece of internet-of-things device, and the first control signal is used for indicating that each device identifier corresponds to the internet-of-things device and is switched from a first device state of each internet-of-things device to a second device state of each internet-of-things device;

the control communication interface 1030 sends a first control signal to at least one internet of things device;

the control communication interface 1030 receives at least one piece of confirmation information sent by at least one piece of internet of things equipment, and each piece of confirmation information in the at least one piece of confirmation information includes an equipment identifier and a second equipment state of the internet of things equipment corresponding to each piece of confirmation information.

In one possible implementation, before the control communication interface 1030 receives the at least one piece of device information sent by the at least one internet of things device through the backscattering technology, the control communication interface 1030 sends at least one continuous wave signal to the at least one internet of things device, where the at least one continuous wave signal is used for providing signal energy.

In one possible implementation, before the control communication interface 1030 receives at least one piece of acknowledgement information sent by at least one internet of things device, at least one continuous wave signal is sent to the at least one internet of things device, and the at least one continuous wave signal is used for providing signal energy.

It should be noted that, in the foregoing embodiments, the descriptions of the respective embodiments have respective emphasis, and reference may be made to relevant descriptions of other embodiments for parts that are not described in detail in a certain embodiment.

The steps in the method of the embodiment of the invention can be sequentially adjusted, combined and deleted according to actual needs.

The units in the processing equipment of the embodiment of the invention can be merged, divided and deleted according to actual needs.

In the above embodiments, the implementation may be wholly or partially realized by software, hardware, firmware, or any combination thereof. When implemented in software, may be implemented in whole or in part in the form of a computer program product. The computer program product includes one or more computer instructions. The procedures or functions according to the embodiments of the present application are all or partially generated when the computer program instructions are loaded and executed on a computer. The computer may be a general purpose computer, a special purpose computer, a network of computers, or other programmable device. The computer instructions may be stored on a computer readable storage medium or transmitted from one computer readable storage medium to another, for example, the computer instructions may be transmitted from one website, computer, server, or data center to another website, computer, server, or data center by wire (e.g., coaxial cable, fiber optic, digital subscriber line) or wirelessly (e.g., infrared, wireless, microwave, etc.). The computer-readable storage medium can be any available medium that can be accessed by a computer or a data storage device, such as a server, a data center, etc., that incorporates one or more of the available media. The usable medium may be a magnetic medium (e.g., floppy Disk, memory Disk, magnetic tape), an optical medium (e.g., DVD), or a semiconductor medium (e.g., solid State Disk (SSD)), among others.

Finally, it should be noted that: the above embodiments are only used for illustrating the technical solutions of the present application, and not for limiting the same; although the present application has been described in detail with reference to the foregoing embodiments, it should be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; and the modifications or the substitutions do not make the essence of the corresponding technical solutions depart from the scope of the technical solutions of the embodiments of the present application.

Claims

A control method of Internet of things equipment is applied to the Internet of things equipment, and comprises the following steps:

receiving an inquiry signal sent by control equipment;

responding to the inquiry signal, and sending equipment information to the control equipment through a backscattering technology, wherein the equipment information comprises an equipment identifier and a first equipment state of the equipment of the internet of things;

receiving a first control signal sent by the control equipment;

and if the first control signal comprises the equipment identifier of the Internet of things equipment, switching the first equipment state to a second equipment state according to the first control signal.
The method of claim 1, wherein prior to sending device information to the control device via backscatter techniques in response to the interrogation signal, further comprising:

receiving at least one continuous wave signal sent by the control equipment;

and acquiring signal energy through the at least one continuous wave signal, wherein the signal energy is used for supplying power for the equipment of the Internet of things.
The method of claim 1, wherein after switching from the first device state to a second device state based on the first control signal if the first control signal comprises a device identification of the internet of things device, the method further comprises:

and sending confirmation information to the control equipment, wherein the confirmation information comprises the equipment identification of the Internet of things equipment and the state of the second equipment.
The method of claim 3, wherein prior to sending the acknowledgement information to the control device, the method further comprises:

receiving at least one continuous wave signal sent by the control equipment;

and acquiring signal energy through the at least one continuous wave signal, wherein the signal energy is used for supplying power for the equipment of the Internet of things.
The method of claim 1, wherein after switching from the first device state to a second device state according to the first control signal if the first control signal comprises a device identification of the internet of things device, the method further comprises:

and if a second control signal to the Internet of things equipment is not received within a preset time after the first equipment state is switched to a second equipment state according to the first control signal, switching the second equipment state to the first equipment state.
The method of claim 1, wherein the interrogation signal further comprises a random number instruction;

before sending device information to the control device via backscatter techniques in response to the interrogation signal, the method further comprises:

generating a first random number and a second random number according to the random number instruction;

acquiring a difference value between the first random number and the second random number;

and if the difference is smaller than 0, determining to send the equipment information to the control equipment.
The method of claim 1, wherein prior to sending device information to the control device via a backscatter technique in response to the interrogation signal, the method further comprises:

receiving a plurality of inquiry signals sent by the control equipment;

generating a first random number and a second random number;

when receiving an inquiry signal sent by the control device, taking the difference value between the first random number and the second random number as an updated first random number;

if the first random number obtained by latest updating is greater than or equal to 0, when a next inquiry signal sent by the control equipment is received, taking the difference value between the first random number obtained by latest updating and the second random number as the updated first random number until the first random number obtained by latest updating is less than 0;

and if the first random number obtained by the latest updating is less than 0, determining to send the equipment information to the control equipment.
The method of claim 1, wherein the query signal is further used to indicate a sum of the number of devices in the environment to which the device belongs;

before sending device information to the control device via backscatter techniques in response to the interrogation signal, the method further comprises:

receiving a plurality of inquiry signals sent by the control equipment;

acquiring a quantity threshold of the Internet of things equipment according to the total quantity of the Internet of things equipment in the environment to which the Internet of things equipment belongs;

and if the number of the received inquiry signals reaches the number threshold value, determining to send device information to the control device.
A control method of Internet of things equipment is applied to control equipment, and the method comprises the following steps:

sending an inquiry signal to at least one Internet of things device;

receiving at least one piece of equipment information sent by the at least one piece of internet-of-things equipment through a backscattering technology, wherein the at least one piece of equipment information comprises an equipment identifier of each piece of internet-of-things equipment in the at least one piece of internet-of-things equipment and a first equipment state of each piece of internet-of-things equipment;

generating a first control signal according to the at least one piece of equipment information, wherein the first control signal comprises equipment identifiers of the at least one piece of internet-of-things equipment, and the first control signal is used for indicating that each piece of equipment identifier corresponds to the piece of internet-of-things equipment and is switched from a first equipment state of each piece of internet-of-things equipment to a second equipment state of each piece of internet-of-things equipment;

sending a first control signal to the at least one Internet of things device;

receiving at least one piece of confirmation information sent by the at least one piece of internet of things equipment, wherein each piece of confirmation information in the at least one piece of confirmation information comprises an equipment identifier and a second equipment state of the internet of things equipment corresponding to each piece of confirmation information.
The method of claim 9, wherein before receiving at least one device information sent by at least one internet of things device via backscatter technology, the method further comprises:

and sending at least one continuous wave signal to the at least one Internet of things device, wherein the at least one continuous wave signal is used for providing signal energy.
The method of claim 9, wherein before receiving at least one acknowledgement sent by at least one internet of things device, the method further comprises:

and sending at least one continuous wave signal to the at least one internet of things device, wherein the at least one continuous wave signal is used for providing signal energy.
A communication apparatus comprising a processor, a memory and a user interface, the processor, the memory and the user interface being interconnected, wherein the memory is configured to store a computer program comprising program instructions, the processor being configured to invoke the program instructions, to perform the method of controlling the internet of things device of any one of claims 1 to 8, or the method of controlling the internet of things device of any one of claims 9 to 11.
A computer-readable storage medium storing one or more instructions adapted to be loaded by a processor and to execute the method for controlling an internet of things device according to any one of claims 1 to 8 or the method for controlling an internet of things device according to any one of claims 9 to 11.