KR20240009185A - A communication system for electronic devices using illuminance sensor - Google Patents

Abstract

Embodiments relate to an electronic device communication system using an illuminance sensor. More specifically, encoded data can be transmitted and received using an illuminance sensor capable of recognizing changes in illuminance or changes in the duration of a specific illuminance. It relates to electronic device communication systems.
The electronic device communication system of the embodiment includes a data generation unit that generates transmission data for transmission to another electronic device, a data encoding unit that encodes the transmission data with a predetermined encoding rule so that the transmission data can be transmitted as an optical signal, and an optical signal. A data transmission electronic device including an optical signal output unit that outputs a signal, an illuminance sensor that receives the optical signal and converts it into encoded received data, a data decoder that decodes the encoded received data according to a predetermined decoding rule, and the decoded received data. It is characterized by comprising a data receiving electronic device including a data processing unit that processes.

Description

Electronic device communication system using an illumination sensor {A COMMUNICATION SYSTEM FOR ELECTRONIC DEVICES USING ILLUMINANCE SENSOR}

Embodiments relate to an electronic device communication system using an illuminance sensor. More specifically, encoded data can be transmitted and received using an illuminance sensor capable of recognizing changes in illuminance or changes in the duration of a specific illuminance. It relates to electronic device communication systems.

Recently, as electronic technology has developed and the distribution of electronic products has increased, various small electronic products have been released. There is a need to transmit data such as process data, authentication data, and setting data to small electronic products by manufacturers or users. In this case, conventionally, data was transmitted and received through a wired connection using a cable or using a wireless communication module such as Bluetooth or Wi-Fi. In the case of a wired connection, there are disadvantages that cable connection is cumbersome and the terminal section must be prepared separately. In the case of wireless connection, it is necessary to provide a separate wireless communication module, which has the disadvantage of impeding product miniaturization and increasing unit cost.

Republic of Korea Patent Publication No. 10-1447602 discloses an optical communication system using an illumination sensor of a terminal. The illuminance sensor that acts as a data receiver is a very small sensor element, is inexpensive, and is often already built into electronic devices for other purposes. Light sources that act as transmitters are also small in size, inexpensive, and often already built into electronic devices for other purposes. Therefore, if short-distance wireless communication can be performed using an illuminance sensor, there is an advantage that there is no need to provide a separate communication terminal or wireless communication module.

The purpose of the embodiments is to provide an electronic device communication system capable of transmitting and receiving data by recognizing changes in various stages of illumination intensity or changes in the duration of illumination intensity.

In addition, the embodiments aim to provide an electronic device communication system that can transmit and receive data at a short distance using a light source such as an LED element and an illuminance sensor, so that the manufacturing cost is low and miniaturization is possible.

Additionally, embodiments aim to provide an electronic device communication system that can recognize changes in illuminance in three or more stages or recognize Morse code according to the duration of illuminance, making it easier to encode and decode data.

An electronic device communication system according to an embodiment of the present invention includes a data generating unit that generates transmission data for transmission to another electronic device, a data encoding unit that encodes the transmission data with a predetermined encoding rule so that it can be transmitted as an optical signal, and encoding. A data transmission electronic device including an optical signal output unit that outputs the encoded transmission data as an optical signal, an illuminance sensor that receives the optical signal and converts it into encoded received data, and a data decoding unit that decodes the encoded received data according to a predetermined decoding rule. , a data receiving electronic device including a data processing unit that processes decoded received data, the data transmitting electronic device and the data receiving electronic device share predetermined optical signal encoding rules and decoding rules, and the illuminance sensor performs at least three steps. It is characterized by recognizing the above change in illumination intensity or recognizing the duration of a predetermined illumination intensity and converting it into encoded received data.

In addition, in the electronic device communication system of an embodiment of the present invention, the data encoding unit encodes transmission data in octal or hexadecimal using various stages of illuminance change as an element, and the illuminance sensor recognizes the various stages of illuminance change and encodes the encoded data. It is characterized by converting it into received data.

In addition, in the electronic device communication system of an embodiment of the present invention, the data encoding unit encodes transmission data into Morse code using the long and short duration of the predetermined illuminance as an element, and the illuminance sensor recognizes the duration of the predetermined illuminance and encodes the encoded data. It is characterized in that it is converted into received data.

Additionally, the electronic device communication system according to an embodiment of the present invention is characterized in that the transmission data transmitted by the data generator is process information.

Additionally, the electronic device communication system according to an embodiment of the present invention is characterized in that the transmission data transmitted by the data generator is user authentication information.

According to embodiments, wireless data transmission and reception can be performed at a short distance using an illuminance sensor and a light source, making data transmission and reception between small electronic devices possible without a separate communication module.

Additionally, according to embodiments, it is possible to provide an electronic device communication system capable of improving the transmission speed of optical signals by outputting and recognizing optical signals encoded in Morse code, octal, or hexadecimal.

1 is a block diagram showing an electronic device communication system of one embodiment of the present invention;
2 is a flowchart showing the data transmission and reception process performed by the electronic device communication system according to an embodiment of the present invention;
Figure 3 is an illuminance table exemplarily showing illuminance changes that can be recognized by the illuminance sensor of an embodiment of the present invention;
Figure 4 is a table illustrating a method of encoding characters using the duration of a predetermined illumination level that can be recognized by an illumination sensor according to an embodiment of the present invention as an element.

Hereinafter, the present invention will be described in more detail with reference to the drawings.

1 is a block diagram showing an electronic device communication system according to an embodiment of the present invention. The electronic device communication system includes a data transmitting electronic device 100 and a data receiving electronic device 200. In addition, the data transmitting electronic device 100 and the data receiving electronic device 200 have predetermined optical signal decoding rules for decoding the optical signal and converting it into data, and predetermined optical signal encoding for encoding the data and converting it into an optical signal. Rules can be shared.

The data transmission electronic device 100 includes a data generation unit 110 that generates transmission data for transmission to another electronic device, and a data encoding unit 120 that encodes the transmission data with a predetermined encoding rule so that it can be transmitted as an optical signal. It may include an optical signal output unit 130 that outputs the encoded transmission data as an optical signal. In addition, it may further include a memory unit 150 for storing data necessary for the above process and a main function unit 160 for providing useful functions unique to the electronic device. The components of the data transmission electronic device 100 may be an integrated or separate computing device, or may be an application running on a computing device. The data transmission electronic device 100 may be a PC, a server, a smartphone, a tablet PC, or other small electronic device.

The data generation unit 110 generates data to be transmitted and sends it to the data encoding unit 120. The transmission data generated by the data generation unit 110 is, for example, a command composed of characters that operates a predetermined function of the data receiving electronic device 200, or contains information to be stored in the data receiving electronic device 200. It can contain either data or both. The data encoding unit 120 encodes the transmission data generated by the data generating unit 110 using predetermined encoding rules so that it can be transmitted as an optical signal. In an embodiment, in order for the optical signal output unit 130 to transmit transmission data including characters using light so that the illuminance sensor 230 of the data receiving electronic device 200 can identify it, a certain amount of data encoding is required. Preferably, the data encoding unit 120 encodes the transmission data into octal or hexadecimal. When the transmission data is encoded in octal, the optical signal output unit 130 can output an illuminance change of at least 8 levels, and the illuminance sensor 230 of the data receiving electronic device 200 can also output an illuminance change of at least 8 levels. can be recognized. Additionally, when the transmission data is encoded in hexadecimal, the optical signal output unit 130 can output an illuminance change of at least 16 levels, and the illuminance sensor 230 of the data receiving electronic device 200 can also output an illuminance change of at least 16 levels. Changes can be recognized. Alternatively, depending on the embodiment, the data encoding unit 120 may encode the transmission data into Morse code that has a short duration and a long duration of a predetermined illuminance. In this case, the illuminance sensor 230 may recognize the duration of how long a certain illuminance lasts rather than recognizing a change in illuminance. The encoding of the transmission data performed by the data encoding unit 120 is performed by using conventional string encoding methods such as ASCII code, UTF-8, and UTF-16, and converting them to octal, hexadecimal, or decimal numbers. It can be. It can also be performed using the rules of conventional Morse code. Depending on the embodiment, the transmission data encoded by the data encoding unit 120 may include both a change in illuminance and the duration of a specific illuminance as elements. In other words, by combining the illuminance change and the duration of the illuminance, more diverse signals can be transmitted in a short period of time.

The optical signal output unit 130 is a light source and may be, for example, an LED device or an OLED device. It is desirable that the optical signal output unit 130 can express all of the transmission data encoded by the data encoding unit 120 through changes in illuminance. For example, when the data encoding unit 120 encodes transmission data in hexadecimal, it is preferable that the optical signal output unit 130 is capable of changing the illuminance in at least 16 levels. Or, for example, when the data encoding unit 120 encodes transmission data into Morse code, it is desirable that the optical signal output unit 130 be able to change the duration of emitting light at a predetermined illuminance.

The data receiving electronic device 200 includes an illuminance sensor 230 that receives an optical signal and converts it into encoded received data, a data decoding unit 220 that decodes the encoded received data according to a predetermined decoding rule, and the decoded received data. It may include a data processing unit 210 that processes data. In addition, it may further include a memory unit 250 for storing data necessary for the above process and a main function unit 260 for providing useful functions unique to the electronic device. The components of the data receiving electronic device 200 may be an integrated or separate computing device, or may be an application running on the computing device. The data receiving electronic device 200 may be a PC, a server, a smartphone, a tablet PC, or other small electronic device.

The illuminance sensor 230 is a sensor that can recognize the illuminance of the optical signal output by the optical signal output unit 130 of the data transmission electronic device 100. In particular, the illuminance sensor 230 is a sensor that can recognize the illuminance of the optical signal output by the optical signal output unit 130. Changes in illuminance in stages or the duration of a specific illuminance can be recognized and converted into encoded received data. The illuminance sensor 230 preferably has a recognition capability sufficient to receive encoded transmission data output from the optical signal output unit 130. For example, when the data encoding unit 120 encodes transmission data in hexadecimal, it is desirable that the illuminance sensor 230 be able to recognize changes in illuminance of the optical signal output unit 130 in at least 16 levels. Or, for example, when the data encoding unit 120 encodes the transmission data into Morse code, it is desirable for the illuminance sensor 230 to be able to recognize a change in the duration of time during which the optical signal output unit 130 emits light at a predetermined illuminance. .

The data decoding unit 220 decodes the encoded data received by the illuminance sensor 230. In order for the illuminance sensor 230 to decode the encoded received data, it is desirable for the data transmitting electronic device 100 and the data receiving electronic device 200 to share predetermined optical signal decoding rules and encoding rules. The received data decoded by the data decoding unit 220 is transmitted to the data processing unit 210, and a task corresponding to the received data can be performed. For example, if the received data is a command, the command can be performed in the data processing unit 210 or the main function unit 260, and if it is information data, processing to store it in the memory unit 250 can be performed. there is.

Figure 2 is a flowchart showing a data transmission and reception process performed by an electronic device communication system according to an embodiment of the present invention. Through this, the operation sequence for each element of the electronic device communication system of the embodiment of FIG. 1 will be described. First, the data generator 110 of the data transmission electronic device 100 generates transmission data for transmission to the data reception electronic device 200 (step s110), and the data encoding unit 120 converts the generated transmission data into optical signals. The optical signal is encoded using predetermined encoding rules so that the signal output unit 130 can output it and the illuminance sensor 230 can recognize it (step s120). Next, the optical signal output unit 130 transmits the encoded transmission data through the change in illuminance or the duration of illuminance (step s130). The illuminance sensor 230 of the nearby data receiving electronic device 200 recognizes this and converts it into encoded received data (step s140), and the data decoder 220 decodes the encoded received data according to the promised decoding rule. Restore to the original transmission data (step s150). The data processing unit 210 performs processing tasks suitable for the characteristics of the restored received data, such as executing commands or storing data (step s160).

Figure 3 exemplarily shows changes in illuminance that can be recognized by the illuminance sensor 230 of an embodiment of the present invention. It is preferable that the optical signal output unit 130 and the illuminance sensor 230 are each capable of outputting or recognizing changes in illuminance in at least three stages. When the optical signal output unit 130 and the illuminance sensor 230 output and recognize an illuminance change in 3 or more levels, for example, 8 or 16 levels or more, the data encoding unit 120 uses octal or hexadecimal notation. Since it is possible to output and receive signals coded with , data can be transmitted and received more quickly compared to transmitting and receiving optical signals with conventional binary codes. Recognition of illuminance through the illuminance sensor 230 requires a certain recognition time. Therefore, when transmitting data, it is necessary to be able to recognize changes in illuminance at various stages in order to reduce the number of bits required for data transmission and shorten the overall data transmission and reception time.

FIG. 4 is a table illustrating a method of encoding characters using the duration of a predetermined illuminance that can be recognized by the illuminance sensor 230 according to an embodiment of the present invention as an element. The optical signal output unit 130 and the illuminance sensor 230 can each output or recognize the duration of a predetermined illuminance, and in particular, can transmit and receive data by applying Morse code encoding and decoding rules as in this example.

In the above-described embodiments, the transmission data transmitted by the data generator 110 may be process information such as the serial number of the corresponding product, a Bluetooth device address, or a device activation code. In this case, the data processing unit 210 of the data receiving electronic device 200 may record the received process information in a non-deletable flash memory area. In this case, information to be transmitted to products produced on the production line can be easily transmitted at a short distance and wirelessly.

Alternatively, the transmission data transmitted by the data generator 110 may be authentication information such as user authentication or adult authentication information. In this case, the data processing unit 210 of the data receiving electronic device 200 may compare the received authentication information with information stored in the device itself and then perform processing to activate use of the device, for example. In this case, the device can be activated by transmitting authentication information without requiring an additional communication module in a small electronic device that requires user authentication or adult authentication.

As explained above, the present invention is not limited to the above-described specific preferred embodiments, and anyone skilled in the art can use various Of course, modifications are possible, and such modifications fall within the scope of the claims.

100: data transmission electronic device 110: data generation unit
120: data encoding unit 130: optical signal output unit
200: data receiving electronic device 210: data processing unit
220: data decoding unit 230: illuminance sensor

Claims (5)

a data generator that generates transmission data for transmission to another electronic device;
a data encoding unit that encodes transmission data using predetermined encoding rules so that it can be transmitted as an optical signal;
A data transmission electronic device comprising: an optical signal output unit that outputs the encoded transmission data as an optical signal; and
An illuminance sensor that receives optical signals and converts them into encoded received data;
a data decoding unit that decodes received data encoded according to predetermined decoding rules;
A data processing unit that processes the decoded received data; a data receiving electronic device including a;
The data transmitting electronic device and the data receiving electronic device share predetermined optical signal encoding rules and decoding rules, and the illuminance sensor recognizes a change in illuminance in at least 3 levels or recognizes the duration of a predetermined illuminance and converts it into encoded received data. An electronic device communication system characterized in that. According to paragraph 1,
An electronic device communication system characterized in that the data encoding unit encodes transmission data into octal or hexadecimal using various stages of illuminance change as elements, and the illuminance sensor recognizes the various stages of illuminance change and converts it into encoded received data. . According to paragraph 1,
An electronic device communication system characterized in that the data encoding unit encodes the transmission data into Morse code using the long and short duration of the predetermined illuminance as an element, and the illuminance sensor recognizes the duration of the predetermined illuminance and converts it into encoded received data. . According to paragraph 1,
An electronic device communication system, wherein the transmission data transmitted by the data generation unit is process information. According to paragraph 1,
An electronic device communication system, wherein the transmission data transmitted by the data generation unit is user authentication information.