CN104735274A - Learning type universal infrared remote control method based on cloud platform and smart phone - Google Patents

Abstract

The invention provides a learning type universal infrared remote control method. Infrared coding learning and infrared signal transmitting are based on an audio port infrared transmitting and receiving control platform of a smart phone. Infrared coding learning is based on the audio port infrared transmitting and receiving control platform; compression, decoding, storage and forwarding are based on the smart phone; and classified summarizing and storage of infrared coding learning are based on a cloud platform database. The method comprises the following steps: a key coding signal of an infrared remote controller is received by an infrared receiving circuit; and the signal is processed by the audio port infrared transmitting and receiving control platform and the smart phone and then transmitted through a GPRS/3G network to the cloud platform database in the form of email. Users can download needed infrared coded data from the cloud platform database, the coded data can be decoded and reorganized by the smart phone, and then an infrared remote control signal can be transmitted through the audio port infrared transmitting and receiving control platform of the smart phone. Through infrared learning code sharing, the learning efficiency of infrared coding and the stability and reliability of an infrared coding database are improved.

Description

A learning-type universal infrared remote control method based on cloud platform and smart phone

technical field

The invention relates to the technical field of infrared remote control, and more specifically, to a learning-type universal infrared remote control method based on a cloud platform and a smart phone. the

Background technique

With the continuous development of technology and smart home, there are more and more home appliances, and there are more and more remote controls for their control devices. People often encounter the problem of not being able to find the remote control of the corresponding device. The universal remote control was born out of operation. the

In the Chinese patent application publication specification, CN102968898A proposes a remote universal infrared remote control system based on mobile phone text messages. This system combines the text message control switch with the universal infrared remote control technology. Users can It is very convenient and practical to remotely control any household appliances that can be controlled with an infrared remote control. In addition, due to the wireless connection between the main control device and the infrared control device, the trouble of wiring can be avoided. Patent CN102546943A proposes a centralized remote control system for universal home appliances based on Bluetooth and smart phones, and its main components include a network server, smart phone software and a centralized control gateway for home appliances. Its main features are that the smart phone software is used to replace the actual remote control to provide the operation control interface, the centralized control gateway of home appliances is used to emit infrared signals of various formats to control all home appliances, and data communication is established between the smart phone and the centralized control gateway of home appliances through Bluetooth access, download and update the home appliance control code through the network. Its main advantages are: the smart phone software provides a convenient and easy-to-use operation interface, and can display the control interfaces of different home appliances through the interface switching, the centralized home appliance control gateway can emit infrared control signals of various types and brands of home appliances, and the network server Ability to continuously update and add new remote control code data. CN202889394U has proposed a kind of universal intelligent remote control device, and this patent relates to a kind of universal intelligent remote control device, comprises a remote control sending and receiving accessories with audio input and output interface, and remote control sending and receiving accessories can communicate with smart phone or tablet computer through its audio interface. Data communication, convert the command sent by the smart phone or tablet into the remote control command recognized by the controlled electrical appliance and send it out, realizing the process of remote control of the electrical appliance. the

The above patents propose different methods for realizing infrared remote control, but none of them solves the problem of learning and sharing of infrared remote control codes, resulting in repeated learning and wasting a lot of resources. the

Contents of the invention

The technical problem to be solved by the present invention is to provide a method that can realize coding learning and sharing of infrared information. the

In order to solve the above problems, the present invention proposes a learning-type universal infrared remote control method based on a cloud platform and a smart phone. The method includes a database based on cloud technology, a smart phone that can access the Internet, wherein the smart phone has infrared information coding learning and emission control applications, and an infrared transceiver control platform, which integrates infrared receiving circuits, infrared emitting circuit, central controller and low-pass filter circuit. the

Because the invention uses the cloud platform database to store and share infrared learning codes, on the one hand, users can upload the learned infrared codes to the cloud platform database, and on the other hand, users can directly download the infrared code data to the local area to realize the control of corresponding equipment. the

The infrared sending and receiving control platform in the present invention consists of a power supply module, an infrared receiving module, an infrared emitting module, a single-chip microcomputer module, a low-pass filter, and an audio interface automatic identification circuit. The infrared receiving module adopts an infrared integrated receiving head with a local oscillator frequency of 38KHz (±0.1KHz). The infrared emitting circuit is composed of an infrared emitting LED with a working voltage of 3.3V and a working current of 50mA and an amplifying transistor. On the one hand, the single-chip microcomputer module is used to receive the infrared coded signal of the infrared receiving circuit, and use the double-edge capture and timer to collect the data bit width information, and store it in a local receiving buffer with a size of 500 bytes. On the other hand, it receives the control signal from the smart phone, and outputs the control information flow to the infrared transmitting circuit according to the control signal. Low-pass filter adopts RC passive filter. The power module is used to collect the power of the left channel of the smart phone. the

As a further improvement of the present invention, the infrared receiving integrated head in the infrared receiving circuit in the infrared transceiver control platform of the present invention can be replaced with other modules, especially a module with adjustable local oscillator frequency, which can increase the learning range of the circuit . the

As a further improvement of the present invention, the smart phone can adjust the data transmission rate between the smart phone and the infrared transceiver control platform by configuring the internal register of the single-chip microcomputer. By adjusting the data transmission rate, the energy consumption of the system can be reduced as much as possible under the adjustment of satisfying the data transmission, and the use time of the smart phone can be extended. the

Beneficial effect

Using the above method and device, by using the infrared transceiver platform to learn infrared coded signals, using the infrared transceiver platform to output infrared control signals, directly transmitting data and energy on the smart phone and the infrared transceiver control platform through the audio interface, and using the smart phone to receive and compress infrared learning Encode, and upload the processed data to the cloud platform database by email. The cloud platform database is used to store and share the uploaded infrared coded information, and the smartphone terminal can download the required infrared coded information from the cloud platform database, which is processed by the smartphone and transmitted by the infrared transceiver circuit, thereby realizing the control of the infrared device. According to the above method, the sharing of infrared coding information resources can be effectively realized, the process of repeated learning of infrared coding by users is avoided, and the effective utilization of resources is improved. the

Description of drawings

By referring to the following description combined with the accompanying drawings and the contents of the claims, and with a more comprehensive understanding of the present invention, other objectives and results of the present invention will be more clear and easy to understand. In the attached picture:

Fig. 1 is the work flowchart of the inventive method;

Fig. 2 is the system structural diagram that the present invention realizes;

Figure 3 is a structural block diagram of the infrared transceiver control platform;

Fig. 4 is a flow chart of infrared coding information learning software;

Fig. 5 is a flow chart of infrared control code launching software;

Figure 6 is a flowchart of the low-power processing software of the infrared transceiver control platform;

The same reference numerals indicate similar or corresponding features or functions throughout the drawings. the

Detailed ways

In the following description, for purposes of explanation, numerous specific details are set forth in order to provide a thorough understanding of one or more embodiments. It may be evident, however, that these embodiments may be practiced without these specific details. In other instances, well-known structures and devices are shown in block diagram form in order to facilitate describing one or more embodiments. the

Various embodiments according to the present invention will be described in detail below with reference to the accompanying drawings. the

As shown in Figure 1, it is a block diagram of the system structure of the present invention, wherein the infrared remote control device 1 receives the infrared control signal from the infrared transceiver control platform 2, and the infrared transceiver control platform 2 receives the control code from the infrared remote controller, and learns the infrared control signal through the internal circuit. coded information. The infrared transceiver control platform 2 learns the infrared coded data and sends it to the smart phone 3 through the audio port 6 of the smart phone 3 after being compressed. After the smart phone 3 receives the data and further processes it, it transmits it to the base station/gateway 4 through wireless means 8 such as GPRS/3G/WiFi. Base station/gateway 4 transmits data to cloud platform database 5 through Inernet9. After the data arrives at the cloud platform database 5, the data received by the cloud platform database 5 is decompressed, and the data is stored in the corresponding database of the cloud platform database 5 according to a custom protocol. the

The smart phone 3 sends a request to the cloud platform database 5, and the cloud platform database 5 sends the infrared coded information required by the request information to the smart phone 3 after receiving the download request. After the smart phone 3 receives the data, it decompresses the data and removes redundant data, and then sends the processed data to the infrared transceiver control platform 2 through the audio port 6 . After the infrared transceiver control platform 2 receives the data, it invokes the infrared control code emission software flow chart shown in Figure 4 to start the corresponding emission program, and transmits the control signal, thereby realizing the control of the infrared device. the

As shown in FIG. 2 , it is an infrared transceiver control platform 2 . The infrared transceiver control platform 2 is composed of 6 parts, wherein the audio interface 10 is used to connect the smart phone 3 and the infrared transceiver control platform 2 . The smart phone 3 provides power to the infrared transceiver control platform 2 through the audio port 10, and realizes two-way data communication between the two. The power supply module 11 transforms the AC signal into a DC signal through a transformer and a rectifier bridge, and provides power to the preprocessing module 12, the single-chip microcomputer control module 13, the infrared transmitting module 15, and the infrared receiving module 14 respectively. The preprocessing module 12 includes an AC coupling circuit and a low-pass filter, wherein the AC coupling circuit is used to couple the module signal output by the right channel of the audio port 10 to a signal suitable for processing by the single-chip microcomputer, and the low-pass filter is used to filter out the output of the single-chip microcomputer module 13 The high-frequency components of the signal make the signal more suitable for transmission in the audio port 10 . The single-chip control module 13 is used to receive data from the infrared receiving module 14 and the smart phone 3 on the one hand, and transmit the processed data to the smart phone 3 and the infrared emitting module 15 on the other hand. The internal program control flow chart of the single-chip microcomputer control module 13 is shown in Figures 3 to 5. When the system department is working, the single-chip microcomputer system is in a low power consumption mode. Only when an interruption occurs, the system starts to process data, which greatly reduces the infrared transceiver control platform. 2 power consumption. The infrared receiving module 14 receives the control signal from the infrared to be controlled, and transmits the data to the single-chip microcomputer control module 13 after demodulation. The infrared emitting module 15 modulates the control signal of the future single-chip microcomputer and emits it, thereby realizing the control of the infrared device. the

Claims (6)

1. a learning type universal infrared remote control method based on cloud platform and smart phone, wherein said smart phone comprises the smart phone of iOS, Android and windows phone systems, said method comprising: This method transmits data and power through the audio port of the smart phone, so it is required to add a bridge circuit between the infrared transmitting circuit and the infrared receiving circuit and the audio port of the smart phone, The mobile phone's audio interface peripherals receive infrared remote control signals through the infrared integrated receiver with a local oscillator frequency of 38KHz (±0.1KHz). The infrared transceiver control platform and the smart phone perform data communication through UART (Universal Asynchronous Receiver Transmission Protocol), the data communication baud rate is 4800bps, The communication between the infrared transceiver control platform and the smart phone adopts the Manchester encoding protocol. The infrared transceiver control platform has automatic identification circuits for European standard audio ports and American standard audio ports. Data transfer via email between smartphone and cloud server, The cloud database adopts general-purpose infrared code storage technology, The cloud database is a public sharing platform, which is used to collect infrared coding signals learned by users and share infrared coding library resources with users. 2. The method according to claim 1, wherein the smart phone transmits data and energy through the audio port and the infrared transceiver control platform, and its basic features are: the smart phone sends data to the infrared transceiver control platform through the right channel of the audio port , transmit energy through the left channel of the smartphone audio port, and receive data from the infrared transceiver control platform through the microphone. 3. The method as claimed in claim 1, wherein, the infrared transceiver control platform and the smart phone carry out data communication by UART (Universal Asynchronous Receiver Transmission Protocol), the data communication baud rate is 4800bps, and its basic feature is: data pass through 4800bps standard UART signal transmission, using Manchester encoding protocol to effectively encode the standard UART signal before signal transmission. 4. The method according to claim 1, wherein the basic feature of the infrared transceiver control platform is: the platform integrates an infrared transmitting circuit, an infrared receiving circuit, a low-pass filter, a single-chip microcomputer control system, and an automatic identification circuit of an audio interface protocol. 5. The method according to claim 1, wherein the cloud database adopts a general infrared code storage technology and its basic features are: the data storage fields are company name, device type, model, key value, status, and control code. 6. As claimed in claim 5, wherein the cloud database can collect infrared coding signals learned by users and share infrared coding library resources with users.