Internet of Things system, central control device, application device and communication methods

Patent metadata

Field	Value
Publication number	US-11622005-B2
Application number	US-201916651140-A
Country	US
Kind code	B2
Filing date	Mar 27, 2019
Priority date	Mar 27, 2019
Publication date	Apr 4, 2023
Grant date	Apr 4, 2023

Abstract

Disclosed is a system, central control device, an application device for the Internet of things and communication methods applied to the Internet of Things system. The Internet of Things includes the center control and a plurality of application devices, wherein the central control device includes: a central control unit configured to perform a central control function of the central control device under control of a first clock signal; an asynchronous communication unit configured to perform data communication between the central control device and a plurality of application devices in the Internet of Things by using an asynchronous circuit; a synchronous-asynchronous interface configured to perform data transmission between the central control unit and the asynchronous communication unit.

First claim

What is claimed is:

1. A central control device for Internet of Things, wherein the central control device comprises:
a central control processor configured to perform a central control function of the central control device under control of a first clock signal;
an asynchronous circuit configured to perform data communication between the central control device and a plurality of application devices in the Internet of Things;
a synchronous-asynchronous interface configured to perform data transmission between the central control processor and the asynchronous circuit,
wherein, when the central control device is to transmit data to one application device of the plurality of application devices, the central control processor determines the data to be transmitted, and the synchronous-asynchronous interface converts the data into a form that is capable of being transmitted through the asynchronous circuit, and the asynchronous circuit transmits the converted data to the application device, and wherein the synchronous-asynchronous interface is further configured to:
receive a first data signal based on a first input data transmitted by the central control processor under the control of the first clock signal;
generate a second data signal and a third data signal for representing the first input data according to the received first data signal based on a predefined correspondence relationship of the first data signal, the second data signal, and the third data signal, wherein the second data signal and the third data signal are complementary;
transmit the second data signal and the third data signal to the asynchronous circuit, wherein the asynchronous circuit is configured to output a first output data corresponding to the first input data based on the second data signal and the third data signal.

2. The central control device of claim 1 , wherein the central control processor is further configured to:
transmit a request signal to one of the plurality of application devices via the asynchronous circuit, the request signal indicating that the central control device is to transmit data to the application device;
receive a response signal from the application device via the asynchronous circuit, the response signal indicating that the application device is able to receive data transmitted by the central control device; and
transmit data to the application device via the asynchronous circuit in response to the response signal.

3. The central control device of claim 1 , wherein the central control processor is further configured to:
receive a request signal from one of the plurality of application devices via the asynchronous circuit, the request signal indicating that the application device is to transmit data to the central control device;
transmit a response signal to the application device via the asynchronous circuit, the response signal indicating that the central control device is able to receive data transmitted by the application device; and
receive data transmitted from the application device via the asynchronous circuit.

4. The central control device of claim 1 , wherein when the central control device is to receive data from one application device of the plurality of application devices, the synchronous-asynchronous interface is further configured to:
receive a fourth data signal and a fifth data signal, transmitted by the asynchronous circuit, based on a second input data, wherein the fourth data signal and the fifth data signal are complementary;
generate a sixth data signal for representing the second input data according to the received fourth data signal and fifth data signal;
transmit the sixth data signal to the central control processor, wherein the central control processor is configured to output a second output data corresponding to the second input data based on the sixth data signal under the control of the first clock signal.

5. The central control device of claim 1 , wherein the asynchronous circuit is configured to perform an encryption operation on data to be transmitted.

6. The central control device of claim 5 , wherein the encryption operation currently performed in the asynchronous circuit is scheduled so that a working power of the asynchronous circuit at each moment is constant.

7. The central control device of claim 6 , wherein scheduling the encryption operation currently performed in the asynchronous circuit comprises:
scheduling the currently performed encryption operation based on a pre-measured change in power consumption of the asynchronous circuit over time when the asynchronous circuit performs the encryption operation according to an algorithm.

8. The central control device of claim 5 , wherein the asynchronous circuit is further configured to perform a random operation in a process of performing data encryption to generate random power consumption.

9. The central control device of claim 1 , wherein, a communication method applied to the central control device comprises:
transmitting a request signal to an application device for the Internet of Things via the asynchronous circuit, the request signal indicating that the central control device is to transmit data to the application device;
receiving a response signal from the application device via the asynchronous circuit, the response signal indicating that the application device is able to receive data transmitted by the central control device; and
transmitting data to the application device via the asynchronous circuit in response to the response signal.

10. The central control device of claim 1 , wherein, a communication method applied to the central control device comprises:
receiving a request signal from an application device for the Internet of Things via the asynchronous circuit, the request signal indicating that the application device is to transmit data to the central control device;
transmitting a response signal to the application device via the asynchronous circuit, the response signal indicating that the central control device is able to receive data transmitted by the application device; and
receiving data transmitted from the application device via the asynchronous circuit.

11. An application device for Internet of Things, comprising:
an application control processor configured to perform an application function of the application device based on a second clock signal;
an asynchronous circuit configured to perform data communication between the application device and a central control device for the Internet of Things;
a synchronous-asynchronous interface configured to perform data transmission between the application control processor and the asynchronous circuit,
wherein, when the application device is to transmit data to the central control device, the application control processor determines the data to be transmitted, and the synchronous-asynchronous interface converts the data into a form that is capable of being transmitted through the asynchronous circuit, and the asynchronous circuit transmits the converted data to the central control device, and wherein the synchronous-asynchronous interface is further configured to:
receive a first data signal based on a first input data transmitted by the application control processor under the control of the second clock signal;
generate a second data signal and a third data signal for representing the first input data according to the received first data signal based on a predefined correspondence relationship of the first data signal, the second data signal, and the third data signal, wherein the second data signal and the third data signal are complementary;
transmit the second data signal and the third data signal

Assignees

• Boe Technology Group Co Ltd

Inventors

• Liu Nan

Classifications

• G16Y40/35

  Management of things, i.e. controlling in accordance with a policy or in order to achieve specified objectives · CPC title

• H04L67/125 Primary

  involving control of end-device applications over a network · CPC title

• H04L67/62

  Establishing a time schedule for servicing the requests · CPC title

• H04L63/0428 Primary

  wherein the data content is protected, e.g. by encrypting or encapsulating the payload · CPC title

• G05B19/418

  Total factory control, i.e. centrally controlling a plurality of machines, e.g. direct or distributed numerical control [DNC], flexible manufacturing systems [FMS], integrated manufacturing systems [IMS] or computer integrated manufacturing [CIM] · CPC title