TW201509166A - Data transmission system and method - Google Patents

Abstract

A data transmission system and a data transmission method are provided. The data transmission system includes a master device and a slave device. The master device includes a first communication unit used for transmitting a serial frame. The slave device includes a second communication unit and a micro processor. The second communication unit is used for receiving the serial frame, and the micro processor encodes digital data into a response serial frame according to the serial frame. The micro processor transmits the response serial frame having at least one single data string to the master device. The micro processor separates the single data string into at least one low-bit string and at least one high-bit string and encodes the low-bit string and the high-bit string into the response serial frame, when the bit number of the single data string is greater than a single transmission data string bit number.

Description

Data transmission system and method

The present invention relates to a data transmission system and method, and more particularly to a data transmission system and method for encoding transmission data.

With the rapid development of information and communication technology, as well as the development of various electronic devices and the various functions they are equipped with, people's lives are increasingly inseparable from electronic devices. The commonly used electronic devices are usually equipped with a communication unit for the electronic device to communicate with other electronic devices through the communication unit or to transmit data. For example, an electronic device can transmit data through wireless communication technology, and can also communicate information through wireless communication technology. As a result, due to the high development of information-related industries and the increasing demand for information product computing and transmission rates, the industry is constantly working on various transmission interface specifications and the development of various signal codes.

For example, in the process of converting an analog signal into a digital signal, the number of bits of a single data of an analog digital converter may vary depending on the model or manufacturer for different analog digital converters. . However, the number of single data bits that can be transmitted by the transmission sequence does not necessarily match the single data of the analog converter. The number of bits is the same. In general, if the number of bits of a single data of an analog digital converter exceeds the number of single data bits that can be transmitted by the transmission sequence, the single data of the analog digital converter must be cut into two or more pieces. The single transmission of data will increase the number of transmissions of data, which is quite inelastic. Therefore, how to flexibly encode the transmission data to achieve the purpose of increasing transmission efficiency is an issue of concern to those skilled in the art.

In view of this, the present invention provides a data transmission system and method. The controlled end encodes the transmission data by using a sequence frame transmitted by the main control terminal, which can further improve the data transmission rate.

The invention provides a data transmission system, which comprises a main control end and a controlled end. The main control terminal includes a first communication unit for transmitting a sequence frame. The controlled terminal includes a second communication unit and a microprocessor. The second communication unit is configured to receive the sequence frame, and the microprocessor encodes the digital data according to the sequence frame as a response sequence frame. The microprocessor uses the second communication unit to transmit a response sequence frame having at least one single transmission data to the main control terminal, wherein the digital data is composed of at least one single data. When the number of bits of the single data is greater than the number of bits of the single transmission data, the microprocessor cuts the single data into at least one low byte and at least one high byte according to the number of single transmission data bits, and the microprocessor The high byte and the low byte are encoded as a response sequence box.

In an embodiment of the present invention, the data transmission system, wherein the microprocessor combines the high-order tuples into at least one single transmission according to the number of single transmission data bits. One of the materials, and the low byte is one of at least one single transmission. The number of bits of the low byte is the number of bits of the single transmitted data, and the number of bits of the high byte is the difference between the number of bits of the single data and the number of bits of the single transmitted data.

In an embodiment of the present invention, the data transmission system, wherein when the number of bits of the single data is less than the number of single data transmission bits, the microprocessor further comprises directly encoding the single data into a response sequence frame.

In an embodiment of the present invention, the data transmission system, wherein the microprocessor further comprises an analog digital converter, and the analog digital converter converts the analog data into digital data composed of a single data, wherein the analog digital converter The number of output bits of the output sequence 为 is the number of bits of a single data.

In an embodiment of the present invention, the data transmission system, wherein the main control terminal determines whether the response sequence frame is correct. If the main control terminal determines that the response sequence frame is correct, the main control terminal transmits the end message to the controlled terminal by using the first communication unit to control the controlled terminal to stop transmitting the response sequence frame.

In an embodiment of the present invention, the data transmission system includes a sequence frame, a function code field, a single data bit field, a total data amount value field, and an error check code field. .

From another point of view, the present invention provides a data transmission method suitable for a data transmission system having a master terminal and a controlled terminal. This data transfer method includes the following steps. First, the sequence box is transmitted by the master. Then, the controlled end judges whether the number of bits of at least one single data of the digital data is greater than the number of single transmission data bits. When the number of bits in a single data is greater than the number of bits in a single transmission, the controlled end is based on The single transmission data bit number cuts the single data into at least one low byte and at least one high byte, and encodes the high byte and the low byte as a response sequence frame. Then, the response sequence with at least one single transmission data is transmitted from the controlled terminal to the main control terminal.

In an embodiment of the present invention, the data transmission method, wherein the controlled end cuts the single data into at least one low byte and at least one high byte according to the number of single transmitted data bits, and encodes the high byte. The step of responding to the sequence box with the lower byte includes: combining the high byte into one of the single transmission data according to the number of single transmission data bits, and using the low byte as one of the single transmission data, wherein The number of bits in the low byte is the number of bits in a single transmission data, and the number of bits in the high byte is the difference between the number of bits in a single data and the number of bits in a single transmission.

In an embodiment of the present invention, the data transmission method, after determining whether the number of bits of the single data of the digital data is greater than the number of single transmission data bits by the controlled terminal, further includes: when the single data is When the number of bits is smaller than the number of bits in a single transmission data, the single data is directly encoded by the controlled terminal into a response sequence frame.

In an embodiment of the present invention, the data transmission method includes: before the number of bits of the single data of the digital data is determined by the controlled end, whether the number of bits of the single data is greater than the number of the single transmitted data bits, and the analogy of the controlled end The digital converter converts the analog data into digital data composed of a single data, wherein the output bit number of the output sequence of the analog digital converter is the number of bits of a single data.

In an embodiment of the present invention, the data transmission method further includes: determining, by the main control terminal, whether the response sequence frame is correct, and if the main control terminal determines that the response sequence frame is correct, the host end transmits the end message to the controlled end. To control the controlled end to stop transmitting back Should be in the sequence box.

Based on the above, in the data transmission system and method provided by the present invention, the sequence frame is sent by the control terminal, and the digital data to be transmitted is encoded by the controlled terminal through the related information in the sequence frame as a response sequence frame. The response sequence box with digital data is passed back to the controlled end. Wherein, if the number of bits of the single data is greater than the number of bits of the single transmission data, the controlled end cuts the single data into a high byte and a low byte, and after combining the high bytes, the merged The high byte is incorporated into the response sequence box. In this way, the number of bytes in the response sequence frame can be saved, thereby improving the efficiency of data transmission.

The above described features and advantages of the invention will be apparent from the following description.

10, 30, 50‧‧‧ data transmission system

100, 300, 500‧‧‧ master

101, 301‧‧‧ communication unit

110, 310, 510‧‧‧ controlled end

111, 311‧‧‧ communication unit

112, 312, 511‧‧‧ microprocessor

313‧‧‧ Analog Digital Converter

512‧‧‧Bluetooth Module

520‧‧‧ Physiological information

A‧‧‧ sequence box

D‧‧‧Response sequence box

S210~S240, S410~S470‧‧‧ steps of data transmission method

FIG. 1 is a block diagram of a data transmission system according to an embodiment of the invention.

2 is a flow chart of a data transmission method according to an embodiment of the invention.

FIG. 3 is a block diagram of a data transmission system according to another embodiment of the present invention.

FIG. 4 is a flowchart of a data transmission method according to another embodiment of the present invention.

FIG. 5 is a simplified schematic diagram of an application scenario according to another embodiment of the invention.

Generally speaking, in the master-slave communication protocol, the master sends a signal with an action command to the controlled terminal to control the controlled terminal to perform the corresponding function. According to the present invention, when the main control terminal transmits the sequence frame of the required data to the controlled terminal, the specific sequence frame format is used to inform the controlled terminal of the maximum number of bits of the single data, so that the controlled terminal can According to the purpose of cutting and recombining the transmission data, the purpose of improving transmission efficiency is achieved. In order to clarify the content of the present invention, the following examples are given as examples in which the present invention can be implemented.

1 is a block diagram of a data transmission system in accordance with an embodiment of the invention. Referring to FIG. 1, the data transmission system 10 includes a host 100 and a controlled terminal 110. The functions are as follows:

The main control terminal 100 includes a communication unit 101 for transmitting the sequence frame A. The main control terminal 100 can be a personal digital assistant (PDA), a smart phone, a tablet computer, a notebook computer, an ultra-thin notebook (Ultrabook) or a desktop computer and the like to support the master-slave communication technology. The device is, but not limited to, the above. In summary, the master 100 is the master in the master-slave communication architecture. In general, the master 100 can issue commands to its slaves to command the controlled terminal 110 to return the information it requires.

On the other hand, the controlled terminal 110 includes a communication unit 111 and a microprocessor. 112. The communication unit 111 is configured to receive the sequence block A, and the microprocessor 112 encodes the digital data according to the sequence block A as the response sequence block D, and transmits the response sequence block D to the main control terminal 100 by using the communication unit 111. The controlled end 110 may be the same electronic device as the main control terminal 100, or may be an electronic device different from the main control terminal 100. In detail, the controlled terminal 110 is a slave device in the master-slave communication architecture and can only communicate with the master terminal 100 when the master terminal 100 allows.

The microprocessor 112 is, for example, a central processing unit (CPU), or other programmable microprocessor (Microprocessor), a digital signal processor (DSP), a programmable controller, and a special processor. Application Specific Integrated Circuits (ASICs), Programmable Logic Devices (PLDs), or other hardware devices with computing power.

In this embodiment, the communication unit 101 and the communication unit 111 are used to establish a wireless communication connection, so that the host terminal 100 can be connected to the controlled terminal 110 via wireless. The wireless connection is, for example, based on the IEEE 802.15 standard to establish a connection, or based on the IEEE 802.11 standard to establish a connection, but is not limited to the above. For example, the communication unit 101 and the communication unit 111 may be components of a Bluetooth wireless communication technology supporting a wireless personal network connection, or may be a wireless compatible authentication (Wireless Fidelity) supporting a wireless local area network connection. The components of the Wi-Fi communication technology are not limited by the present invention.

In other words, in the present embodiment, the controlled terminal 110 supports the same wireless communication technology electronic device as the host 100. For example, if the host 100 supports Bluetooth wireless communication technology, the controlled terminal 110 can be a personal digital assistant supporting Bluetooth wireless communication technology, a PDA mobile phone, a smart phone, a touch mobile phone, a tablet computer, a notebook computer or an ultra-thin pen Electric (Ultrabook) and so on. The controlled end 110 can also be a peripheral accessory such as a Bluetooth headset, a Bluetooth mouse, or a Bluetooth keyboard.

It should be particularly noted that the digital data of the embodiment consists of at least one single piece of data. When the number of bits of the single data is greater than the number of single transmission data bits defined by the sequence frame A, the microprocessor 112 cuts the single data into a low byte and a high byte according to the number of single data transmission bits, and The microprocessor 112 encodes the high byte and the low byte as the response sequence block D. For example, when the number of single data bits is 12 bits and the number of single transmission data bits defined by the sequence box A is 8 bits, the microprocessor 112 can cut the 12-bit single data into A low byte of 8 bits and a high byte of 4 bits. Next, the microprocessor 112 recodes the low byte of the 8-bit and the high byte of the 4-bit into the response sequence block D.

To further detail how the controlled terminal 110 encodes the response sequence block D according to the sequence block A, another embodiment will be described below to illustrate the present invention. 2 is a flow chart of a data transmission method according to an embodiment of the invention. The method of this embodiment is applicable to the data transmission system 10 of FIG. 1. Hereinafter, the detailed steps of the method of this embodiment will be described with reference to the components in FIG. 1, please refer to FIG. 1 and FIG.

First, as shown in step S210, the master 100 transmits the sequence frame A. It should be noted that the sequence frame A of this embodiment may include a address field, a function code field, a single transmission data bit field, a total transmission data field, and an error check code field, but The present invention is not intended to be described above. For example, in some other embodiments Among them, the sequence box A may not have an error check code field. In the present embodiment, the sequence box A is as shown in Table 1, and the sequence box A includes the above five fields. However, Table 1 is merely an exemplary embodiment, and the present invention is not limited thereto.

Please refer to Table 1. The content of the address field is the controlled end address, and the bit size is 8 bits. The controlled end address may be the device number of the controlled end device, which represents the device that receives the command. Therefore, the controlled terminal 110 will only react to all of the sequence blocks A in the address field whose device number is assigned. Therefore, since different controlled terminals have different controlled end addresses, the master 100 can control different controlled terminals by different controlled end addresses. The content of the function code field is an action instruction for the master terminal 100 to issue an action command to the controlled terminal 110 to control the controlled terminal 110 to perform a corresponding action, such as transmitting the request to send data at the master terminal 100. After the action instruction, the controlled terminal 110 reads the action instruction and sends the data to the host 100.

Furthermore, the content of the single data bit field is the number of bits B of the single data, which represents the number of bits that are grabbed once by the hardware end, for example, the number of bits or analog of the input of the digital analog converter. The number of bits in the output of the digital converter. The content of the total number of transmitted data fields is the total number of transmitted data N, where B and N are integers greater than zero. It can be seen that the total amount of transmitted data will be the product of the number of bits B of a single data and the number N of total transmitted data. The content of the error check code field is error detection. Check code, usually attached to the end of the data, can be used to ensure the correctness of the data.

After the control unit 110 receives the sequence frame A by the communication unit 111, as shown in step S220, the controlled terminal 110 determines whether the number of bits of at least one single data of the digital data to be transmitted is greater than the single transmission data bit. Yuan. The number of single transmission data bits depends, for example, on the data length of the serial port. The standard specifications of the serial port are, for example, the more common RS-232, RS-485 or RS-422, and are not limited herein. When the number of bits of the single data is greater than the number of bits of the single data transmission, as shown in step S230, the controlled terminal 110 cuts the single data into at least one low byte and at least one according to the number of single data transmission bits. High-order tuples, and encode high-order tuples and low-order tuples in response to sequence box D. In this embodiment, the number of bits of the low byte is the number of single data transmission bits, and the number of bits of the high byte is the difference between the number of bits of the single data and the number of single transmitted data bits.

To illustrate in more detail an embodiment in which the microprocessor 112 encodes the high byte and the low byte as the response sequence block D, Table 2 listed below is an embodiment of the response sequence block D. In this embodiment, the response sequence box D includes at least one single transmission data in addition to the five fields which are the same as the sequence box A. Specifically, in the embodiment shown in Table 2, The data length of the pen transmission data is the number of single transmission data bits, and the number of single transmission data bits is 8 bits. However, Table 2 is merely an exemplary embodiment, and the present invention is not limited thereto. Referring to Table 2, the response sequence box D shown in Table 2 includes the same five fields as the sequence box A, which are the address field, the function code field, the single transmission data bit field, and the total transmission. Data field and error check code field.

In addition, the controlled terminal 110 further encodes the digital data to be transmitted into at least one single transmission data. As shown in Table 2, the microprocessor 112 uses the low byte as one of the single transmission data, that is, the lower byte of each single data is the single transmission data of the 8-bit response in the sequence frame D. . On the other hand, the microprocessor 112 combines the high-order tuple into one of the single-transmission data according to the 8-bit single-transmission data bit number. For example, suppose the bit number B of a single piece of data is 10 bits, and since the number of bits of a single transmission data is 8 bits. Thus, the microprocessor 112 will cut the 10-bit single data into an 8-bit low byte and a 2-bit high byte. In addition, since the number of single transmission data bits is 8 bits, the microprocessor 112 combines four high-order bits of two bits to form one of the 8-bit single-transmission data.

As shown in Table 2, the microprocessor 112 encodes all the single data low bits in the front end of the response sequence frame D, and arranges the combined high byte in the back end of the response sequence frame D. It should be noted that although Table 2 shows that all high-order bytes will be located after the low-order byte. However, the present invention is not limited to arranging all high-order tuples in After the low byte, the high byte can also be interspersed between the low bytes to increase the flexibility of the encoding method of the present invention. Finally, as shown in step S240, the controlled terminal 110 transmits a response sequence block D having at least one single transmission data to the master terminal 100. In this way, the host 100 can obtain the required data from the controlled terminal 110 by using the content contained in the sequence frame A, and reduce the number of times the single transmission data is transmitted through the above coding method.

It is to be noted that the implementation of the present invention is not limited to the above description, and the contents of the above embodiments may be changed as appropriate for actual needs. For example, when the number of bits in a single piece of data is less than the number of bits in a single transmission, the controlled end will not need to cut a single piece of data. Hereinafter, another embodiment of the present invention will be described in detail to describe the steps of the data transmission method.

3 is a block diagram of a data transmission system in accordance with another embodiment of the present invention. The data transmission system 30 includes a master terminal 300 and a controlled terminal 310, and the master terminal 300 includes a communication unit 301, and the controlled terminal 310 includes a communication unit 311 and a microprocessor 312. The communication unit 301, the communication unit 311 and the microprocessor 312 are similar to the communication unit 101, the communication unit 111 and the microprocessor 112 shown in FIG. 1, and will not be described again. Different from the embodiment shown in FIG. 1, the microprocessor 312 of this embodiment further includes an analog-to-digital converter 313 for converting the analog signal into a digital signal. In detail, in the present embodiment, the output bit number of the output sequence 埠 of the analog-to-digital converter 313 is the number of bits of the single data, and the analog digital converter 313 converts the analog data into a single data. Digital data. Thus, the controlled terminal 310 will encode the analog digital conversion according to the format content provided by the sequence block A. The digital data output by the device 313 is further provided with a response sequence block D to the master terminal 300.

FIG. 4 is a flowchart of a data transmission method according to another embodiment of the present invention. The method of this embodiment is applicable to the data transmission system 30 of FIG. 3. The detailed steps of the method of this embodiment will be described below with reference to the components in FIG. 3, please refer to FIG. 3 and FIG.

First, in step S410, the master terminal 300 transmits the sequence frame A by using the communication unit 301. After the controlled terminal 310 receives the sequence block A, in step S420, the controlled terminal 310 decodes the sequence block A and confirms the correctness. In detail, the controlled terminal 310 decodes the sequence box A to know the information carried in the sequence frame A, such as an action instruction. Moreover, in order to avoid data transmission errors, the controlled terminal 310 can determine whether the sequence frame A is correct by the error check code in the sequence block A. For example, if the controlled terminal 310 determines that the sequence box A has an error, the controlled terminal 310 can ignore the sequence block A in which the error occurred. The error checking mechanism is, for example, a checksum or a parity check, which is not limited by the present invention.

Next, in step S430, the microprocessor 312 of the controlled terminal 310 determines whether the number of bits of at least one single data of the digital data is greater than the number of single transmitted data bits. If the determination is no, in step S450, when the number of bits of the single data is less than the number of single transmission data bits, the microprocessor 312 of the controlled terminal 310 directly encodes the single data into the response sequence frame D. In order to explain the case where the number of bits of a single data is smaller than the number of bits of a single transmission data, Table 3 listed below is an embodiment of the response sequence block D. In this embodiment, the response sequence box D shown in Table 3 includes at least one single transmission material in addition to the five fields identical to the sequence box A. But Table 3 only For an exemplary embodiment, the invention is not limited thereto. Referring to Table 3, the response sequence box D shown in Table 3 includes the same five fields as the sequence box A, which are the address field, the function code field, the single transmission data bit field, and the total transmission. Data field and error check code field. As shown in Table 3, the microprocessor 312 directly transmits a single piece of data as a single piece of data, and the data length is B bits.

When the number of bits B of the single data is greater than the number of bits of the single transmission data, proceeding to step S440, the microprocessor 312 of the controlled terminal 310 cuts the single data into at least one low byte according to the number of transmitted data bits. With at least one high byte, and encoding the high byte with the low byte as the response sequence box D. The detailed content of the microprocessor 312 cutting a single data and encoding the high byte and the low byte as the response sequence frame D is as shown in the foregoing embodiment, and details are not described herein again.

It is worth mentioning that, assuming that the total number of data transmitted is N=7, and the number of bits of a single data is B=10 bits, that is, the total data length of the digital data is 7*10=70 bits. In general, the traditional format needs to transmit high-order and low-order tuples respectively, that is, 14 single-transmission data. Therefore, the total number of transfers must be 14 times. Digital data is transmitted completely through the Universal Asynchronous Receiver/Transmitter (UART). If applied to a micro-control chip model 4520 with an internal oscillator frequency of 8 MHz, one of the instructions takes 4 instruction cycles.

Time required to transmit 7 single data = 14 * 4 * (1/8 M) = 7 (microseconds) (1) On the other hand, with respect to the data transmission system and method of the present invention, the controlled terminal 310 will The high-order tuples are combined into a single transmission. That is to say, the 2-bit high-order tuple in the 7-single-bit data will be merged into 2 single-transmission data. Therefore, the data transmission system and method of the present invention only requires 9 total transmission times, that is, 9 single transmission data, and the controlled terminal 310 can completely transfer 7 single 10-digit data, and the total is completed. The transmission time is as shown in equation (2).

Time required to transmit 7 single data = 9 * 4 * (1/8M) = 4.5 (microseconds) (2) Next, equation (3) can be used to represent the above application scenarios, the present invention is compared to the general transmission The transfer of the method increases the efficiency, and the formula (3) is as follows.

Transmission increase efficiency = [(7-4.5) / 7] * 100% = 35.7% (3)

It can be seen that in the case where the number of bits of a single data is larger than the number of bits of a single transmission data, the data transmission efficiency can be significantly improved by the data transmission method of the present invention.

In step S460, the communication unit 311 of the controlled terminal 310 transmits a response sequence block D having at least one single transmission material to the main control terminal 310. In step S470, the master 310 decodes the response sequence block D and similarly confirms the correctness of the data. After that, after the master terminal 300 confirms the correctness of the data, the master terminal 300 transmits the end. The message is sent to the controlled terminal 310. Briefly, the master terminal 300 determines whether the response sequence frame D is correct, and if the master terminal 300 determines that the response sequence frame D is correct. The master terminal 300 transmits the end message to the controlled terminal 310 by using the communication unit 301 to control the controlled terminal 310 to stop transmitting the response sequence block D. Finally, in step S470, the controlled terminal 310 receives the end message and stops transmitting the response sequence block D.

FIG. 5 is a simplified schematic diagram of an application scenario according to another embodiment of the invention. As shown in FIG. 5, the controlled terminal 510 has a microprocessor 511 and a Bluetooth module 512, that is, the master terminal 500 also has a Bluetooth module to communicate with the controlled terminal. Furthermore, the controlled terminal 510 may have a sensing device (not shown) for sensing human physiological information, and the sensing device may obtain physiological information 520 through sensing, such as body temperature, respiratory signal or heartbeat. News. Once the master 500 transmits the sequence box A to the controlled terminal 510 requesting the return of the physiological information, the microprocessor 511 obtains the physiological information 520 by performing the sensing action, and converts the analog physiological information 520 into digital data. . Then, the microprocessor 511 will encode the digital data according to the format content provided in the sequence box A as the response sequence frame D, and transmit the response sequence block D to the main control terminal 500 through the Bluetooth module 512.

The operation of the sequence block A is transmitted by the master terminal 500, and the action of the control terminal 510 for encoding the digital data and returning the response sequence frame D can be analogized with reference to the related descriptions of FIG. 1 to FIG. 4, and therefore will not be described again. It should be particularly noted that, in addition to the above application scenarios, the data transmission method of the present invention can be applied to other application scenarios for transmitting digital data, such as data transmission between a smart digital electricity meter and a host of a power company, or a computer host. Data transfer with peripheral devices.

In summary, the data transmission system and method of the present invention can save the transmission times of the transmission data by re-encoding and arranging the single data after cutting, and further improve the data transmission efficiency. In addition, different data encoding compression parameters can be set for the resolution of different analog-to-digital converters. In this way, the data compression parameters can be flexibly used to compress the data to be transmitted, thereby saving the number of bits required by the controlled terminal to return the response sequence frame. In addition, the present invention can be flexibly applied to a one-to-many master-slave communication architecture by the format setting of the sequence frame, and also increases the confidentiality during data transmission.

Although the present invention has been disclosed in the above embodiments, it is not intended to limit the present invention, and any one of ordinary skill in the art can make some changes and refinements without departing from the spirit and scope of the present invention. The scope of the invention is defined by the scope of the appended claims.

S210~S240‧‧‧Steps for data transmission method

Claims (12)

A data transmission system includes: a main control terminal, including a first communication unit for transmitting a sequence frame; and a controlled terminal, comprising: a second communication unit for receiving the sequence frame; and a micro The processor encodes a digital data into a response sequence frame according to the sequence frame, and uses the second communication unit to transmit the response sequence frame having at least one single transmission data to the control terminal, where the digital data is at least one a single data component, when the number of bits of the at least one single data is greater than a single transmission data bit number, the microprocessor cuts the at least one single data according to the single transmission data bit number to at least a low byte and at least one high byte, and the microprocessor encodes the at least one high byte and the at least one low byte as the response sequence block. The data transmission system of claim 1, wherein the microprocessor combines the at least one high-order tuple into one of the at least one single transmission data according to the single transmission data bit number, and At least one lower byte as one of the at least one single transmission data, wherein the number of bits of the at least one lower byte is the number of the single transmitted data bits, and the number of the at least one high byte is a single The difference between the number of bits of the pen data and the number of bits of the single transmitted data. The data transmission system of claim 1, wherein when the number of bits of the at least one single data is less than the number of the single transmission data bits, the microprocessor further comprises directly encoding the at least one single The data is in the response sequence box. The data transmission system of claim 1, wherein the microprocessor further comprises an analog-to-digital converter, and the analog-to-digital converter converts an analog data into the digit composed of the at least one single data. Data, wherein the output bit number of the output sequence of the analog converter is the number of bits of the single data. The data transmission system of claim 1, wherein the main control terminal determines whether the response sequence frame is correct, and if the main control terminal determines that the response sequence frame is correct, the main control terminal transmits by using the first communication unit. An end message is sent to the controlled end to control the controlled end to stop transmitting the response sequence frame. The data transmission system of claim 1, wherein the sequence frame includes a address field, a function code field, a single data bit field, a total transmission data field, and An error check code field. A data transmission method is applicable to a data transmission system having a master terminal and a controlled terminal, the data transmission method includes: transmitting, by the master terminal, a sequence frame; and determining, by the controlled terminal, at least one single digit data Whether the number of bits of the pen data is greater than the number of bits of a single transmission data; when the number of bits of the at least one single piece of data is greater than the number of bits of the single transmission data, the controlled terminal transmits the data according to the single transmission The bit number cuts the at least one single data into at least one low byte and at least one high byte, and encodes the at least one high byte and the at least one low byte as a response sequence frame; and is controlled by the The response sequence of the at least one single transmission data is transmitted to the host. The data transmission method of claim 7, wherein the controlled end cuts the at least one single data into at least one low byte and at least one high byte according to the single transmission data bit number, and The step of encoding the at least one high byte and the at least one low byte as a response sequence frame comprises: combining the at least one high byte according to the single transmitted data bit number into the at least one single transmission data. And using the at least one lower byte as one of the at least one single transmission data, wherein the number of the at least one lower byte is the at least one single transmission data bit, the at least one high bit The number of bits of the group is the difference between the number of bits of the at least one single data and the number of bits of the single transmitted data. The data transmission method of claim 7, wherein after the controlled terminal determines whether the number of bits of the at least one piece of data of the digital data is greater than the number of the single transmission data bits, the method further comprises: When the number of bits of the at least one single data is less than the number of the single transmitted data bits, the controlled terminal directly encodes the at least one single data into the response sequence frame. The data transmission method of claim 7, wherein before the controlled terminal determines whether the number of bits of the at least one piece of data of the digital data is greater than the number of the single transmission data bits, the method further comprises: Converting an analog data to the digital data consisting of the at least one single data by an analog-type digital converter of the controlled end, wherein the output bit number of the output sequence of the analog digital converter is the single data The number of bits. The data transmission method of claim 7, further comprising: determining, by the main control terminal, whether the response sequence frame is correct, if the main control terminal determines The response sequence box is correct, and the terminal transmits an end message to the controlled terminal to control the controlled terminal to stop transmitting the response sequence frame. The data transmission method according to claim 7, wherein the sequence frame includes a address field, a function code field, a single data bit field, a total transmission data field, and An error check code field.