KR20080113661A - Data acquisition device and method using a ethernet - Google Patents

Abstract

A data obtaining apparatus and a method thereof are provided to be used freely in a laptop computer, thereby facilitating mobility. A data obtaining apparatus comprises a web connecting control unit(100) and a data collecting unit(200). The web connecting control unit is connected to an internet relay device or ethernet communication equipment. The web connecting control unit receives and transmits data by TCP/IP. The data collecting unit is connected to the web connecting control unit. The data collecting unit collects, estimates and controls data. The data collecting unit comprises a digital signal input/output unit(230) capable of inputting/outputting a digital signal with an external apparatus.

Description

DATA ACQUISITION DEVICE AND METHOD USING A ETHERNET}

1 is a block diagram of a data acquisition device according to an embodiment of the present invention;

2 is a block diagram of a data collection unit of a data acquisition device according to an embodiment of the present invention.

          ※ Description of the main parts of the drawing ※

100: web connection controller 110: Ethernet connection connector

120: filter 130: Ethernet controller

140: microprocessor 150: memory

200: data collection unit 210: address decoding unit

220: digital / analog converter 230: digital signal input and output unit

240: counter / timer section 250: analog / digital converter section

The present invention relates to a data acquisition device and a data acquisition method using TCP / IP of Ethernet, and more particularly, to collect, measure and control data remotely through the Internet using a web connection controller including an Ethernet controller and a microprocessor. The present invention relates to a data acquisition apparatus and a data acquisition method using the same.

Data Acquisition (DA) device is composed of digital signal input / output device, digital / analog converter, analog / digital converter, counter / timer device, and it is installed on the computer to measure personal computer automatically and measure, real-time Refers to a device that can be converted to a system for data display, automatic output control, data storage and analysis. That is, the data acquisition device is a special interface unit for supervising and synchronizing the I / O transfer between the IBM-PC CPU and the peripherals.

Conventionally, when performing measurement using a computer, a data acquisition device in the form of a plug-in board directly inserted into a mainboard slot of a computer is used, or a data acquisition device using a serial / parallel communication port or a USB port.

However, the data acquisition device in the form of a plug-in board has to open the computer case in order to install the acquisition board, and inconveniently repeats this process when adjusting or moving the board after installation. Opening the computer case and mounting the acquisition board like this is very cumbersome for the user.

In addition, these data acquisition devices are not suitable for using the data acquisition device remotely because they must be directly connected to the computer.

Therefore, in order to solve this problem, an object of the present invention is to connect a data acquisition device to the Internet to perform a data acquisition function remotely through the Internet or to connect to a LAN card (Ethernet card) of a computer to perform the function. do.

The present invention relates to a data acquisition apparatus and method using Ethernet.

More specifically, the data acquisition device according to an embodiment of the present invention is connected to the Internet repeater or Ethernet communication equipment and connected to the web connection controller and the web connection control unit for transmitting and receiving data, the data is collected, measured And a data collecting unit for controlling.

More preferably, the data collection unit may include a digital signal input and output unit to enable the input and output of a digital signal with an external device, and may include an analog / digital converter for converting an external analog signal into a digital signal and inputting the same to a computer. And a digital / analog converter for converting digital data transmitted from a computer into an analog signal and outputting the signal to an external device. The counter / timer may count an external input pulse or input a result to a computer using a timer. The digital signal input / output unit, the analog / digital converter, the digital / analog converter, and the counter / timer may include an address decoding unit for selectively enabling only elements to input / output data. have.

Data acquisition method according to an embodiment of the present invention is connected to the Internet repeater or Ethernet communication equipment and the web connection control unit for transmitting and receiving data and the data connected to the web connection control unit to collect, measure and control the data A data acquisition apparatus comprising a collector, comprising: enabling an element by transmitting an address decoding signal to an element to which data is to be written; Transmitting data via TCP / IP; And writing the data to a device to which the address decoding signal is transmitted.

According to another embodiment of the present invention, a data acquisition method includes a web connection controller configured to be connected to an internet repeater or an Ethernet communication device to receive and transmit data by TCP / IP, and connected to the web connection controller to collect data. A data acquisition device comprising a data acquisition unit for measuring and controlling the data acquisition unit, comprising: enabling the device by transmitting an address decoding signal to a device to which data is to be read; And

Reading data from a device to which the decoded signal has been transmitted. More preferably, if the data to be read is 8 bits or less, the data is read using an 8-bit input signal line of a microprocessor included in the web connection controller. If the data to be read is 8 bits or more, the data is sequentially divided by 8 bits. Lead.

DETAILED DESCRIPTION Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings so that those skilled in the art may fully understand and implement the present invention.

1 is a block diagram of a data acquisition apparatus according to an embodiment of the present invention.

As shown in FIG. 1, the apparatus for acquiring data according to the present invention includes a web connection controller 100 and a data collector 200 to collect, measure, and control data remotely through the Internet.

The web connection control unit 100 is connected to the Internet repeater or Ethernet communication equipment to receive and transmit data with the outside, the data collection unit 200 is connected to the web connection control unit 100 to collect data , Measure, control.

The Internet repeater includes a device for connecting a communication network such as a hub, a router, a router, and the like, and the Ethernet communication device includes a device for enabling Internet access, such as a LAN card of a computer.

That is, the data acquisition device according to the present invention includes the web connection control unit 100 and the data collection unit 200, Internet connection function, digital signal input / output function, digital / analog conversion function, analog through TCP / IP Digital conversion function, counter / timer function, etc. can be performed.

The web connection controller 100 includes an Ethernet connection connector 110, a filter 120, an Ethernet controller 130, a microprocessor 140, a memory 150, and the like.

The Ethernet connection connector 110 serves to connect the Internet and the data acquisition device of the present application, and the Ethernet controller 130 controls TCP / IP protocol communication. In addition, the filter 120 serves as a filtering function between the Ethernet controller 130 and the Ethernet connection connector 110, and the memory 150 stores data and programs. In addition, the microprocessor 140 controls the respective parts, and includes an input / output signal line that is a data input / output path with the data collection unit 200.

The data collector 200 of FIG. 1 includes an address decoder 210, a digital / analog converter 220, a digital signal input / output unit 230, a counter / timer unit 240, and an analog / digital converter 250. It may include.

The digital signal input / output unit 230 serves to enable input / output of a digital signal with an external device, and the digital signal input / output unit 230 may include a Programmable Peripheral Interface (PPI) device.

The PPI device transfers signals between the CPU and the peripheral device in accordance with an operation mode set using a program.

The analog / digital converter 250 converts an external analog signal into a digital signal and inputs it to a computer. The analog / digital converter 250 may include a device such as an ADC0804.

The external analog signal is converted into a digital signal through the analog / digital converter 250 and input to a computer.

The digital / analog converter 220 converts digital data transmitted from a computer into an analog signal and outputs the analog signal to the outside. The digital / analog converter 220 may include a device such as a DAC0800.

The counter / timer unit 240 serves to input an output to a computer by counting an external input pulse or using a timer. For example, when you want to measure the time when an action occurs, or when counting frequencies or generating square waves at specific periods. The counter / timer unit 240 may include an element such as 8253PIT (Programmable Interval Timer / counter) or 8254PIT.

The address decoding unit 210 selectively selects an element to input / output data among the digital signal input / output unit 230, the analog / digital converter 250, the digital / analog converter 220, and the counter / timer unit 240. It serves as an enabler. That is, the address decoding unit 210 selectively determines an address assigned to the device among the addresses on the address bus so that the device operates only at the assigned address.

The devices proposed herein are for illustrative purposes only and are not limited to the above devices. The devices may be replaced with other devices that perform the same or similar functions. For example, although 8-bit devices are used in the present invention, the present invention is not limited thereto, and 12-bit and 16-bit devices may be used.

2 is a block diagram of a data collector of a data acquisition device according to an exemplary embodiment of the present invention.

An address decoding operation and a data write operation according to an embodiment of the present invention are as follows.

In the present invention, the address decoding operation means that the elements configured share the output signal lines 8, 22, 23, 24, 25 and the input signal line 83 of the microprocessor 140 included in the web connection controller 100. Refers to an operation of selectively enabling a device to be input / output.

1. The signal corresponding to the address of the device to be selected is output through the output signal line 8 of the microprocessor 140 included in the web connection control unit 100.

2. The clock signal 22 is output through another output signal line of the microprocessor 140 included in the web connection controller 100.

3. The clock signal 22 applies the clock signal 22 to the club input terminal of the flip-flop 212, so that the flip-flop 212 is operated to transmit the signal of (8) to (10). The address decoding signal delivered to 10 is in a waiting state until the write signal arrives.

4. Then, output the data to be printed through (8). Since the output signal line of the microprocessor 140 included in the web connection controller 100 uses an 8-bit output signal line, the output signal has a size of 8 bits.

5. Next, the light signal 23 is output. When the write signal 23 is output and is in an operating state, the bus transceiver 31 is enabled and thus data is transmitted to (9).

6. In addition, when the write signal 23 is output and enters the operating state, the 213 operates, thereby enabling the decoder 211. The address decoding signal transferred to (10) goes out of the standby state and passes through the enabled decoder (211) to (11) to enable only the device to process the data.

7. The data transferred to (9) to the device enabled by (11) above is written to the device.

A data read operation according to an embodiment of the present invention is as follows.

1. When the read signal 24 is output through the output signal line of the microprocessor 140 included in the web connection controller 100, the above address operation is performed. In the read operation, unlike the write operation, the decoder 211 operates simultaneously with the address decoding operation. The read signal 24 causes (27), which is part of 26, to operate 213 and thus enable the decoder 211. The address signal transmitted to (10) is transmitted to (11) through the decoder 211 to enable only the element to process the data.

2. Next, when the read signal 24 is outputted, the read data of the device to be read is transferred to 84.

3. The input signal is composed of a signal of an 8-bit signal, and this signal is connected to the microprocessor 140 through the input signal line 83 of the microprocessor 140 included in the web connection controller 100 through the bus transceiver 82. ) And is input to an external computer through the Ethernet connection connector 110 included in the web connection control unit 100.

When the input signal is 8 bits or more, for example, when the input signal is 16 bits, the signal is passed through the multiplexer 80 so as to be transmitted by 8 bits. Whether to transmit the upper 8 bits or the lower 8 bits depends on whether the signal 25 connected to the multiplex 80 is high or low.

Since the signal 25 connected to the multiplexer 80 operates the input signals sequentially, the input signals are sequentially transmitted by 8 bits. Therefore, the input signal line of the microprocessor 140 included in the web connection control unit 100 can read data of 8 bits or more using only an 8 bit input terminal.

Digital / analog conversion operation according to an embodiment of the present invention is as follows.

The above address decoding operation is performed first. The digital value to be converted into an analog value is transferred to (9) through the (8) and the bus transceiver (31). The flip-flop 222 is enabled by the write signal 23 and the data of 9 is transferred to the digital-to-analog converter 221. The digital value is converted into an analog value by the digital / analog converter 221 and the value is output to (43).

The digital input / output operation according to an embodiment of the present invention is as follows.

The digital value to be output is transmitted to (9) through (8) and bus transistor (31). The digital signal input / output device (PPI) 231 is enabled by the address decoding operation and the write signal 23, and the data of (9) is input to the digital signal input / output device 231. The digital value is output through the port 51 of the digital signal input / output device 231.

On the contrary, a digital value is input through the port 51 at the time of input. The digital signal input / output device 231 is enabled by the address decoding operation, and the data is transmitted to the 83 by the read signal 24, which is a microprocessor 140 and an Ethernet connection connector included in the web connection controller 100. Input to the computer via (110).

A counter / timer operation according to an embodiment of the present invention is as follows.

The counter value is written to the counter / timer 241 by the address decoder operation and the write signal 23. When a pulse is input to the pulse input signal line 61, the counter / timer 241 is enabled by the address decoding operation and the read signal 24, and the counter value of the counter / timer 241 is transferred to 84. The counter value transferred to 84 is transmitted to 83, which is input to the computer via the microprocessor 140 and the Ethernet connection connector 110 included in the web connection controller 100.

Analog-to-digital conversion operation according to an embodiment of the present invention is as follows.

The analog value is input through the signal line 73. When 74 is set to the operating state, the analog switch 252 is turned ON, and the analog value is transmitted to 71. When the analog-to-digital converter 251 is enabled by the address decoding operation and the read signal 24, the signal of 71 is converted into a digital value and transmitted to 84.

The digital value transmitted to the 84 is transmitted to the 83 and is input to the computer via the microprocessor 140 and the Ethernet connection connector 110 included in the web connection controller 100.

In the present invention, the analog switch 252 is preferably provided with two or more. Since the analog switch 252 is turned on / off by 74, even if two or more signals are input, only the desired channel is operated to turn the analog switch 252 on. Pass the signal to (71).

In this case, even when analog values of two or more channels are input, the analog switches 252 are sequentially operated to read analog values of several channels.

So far, the present invention has been described with reference to the preferred embodiments, and those skilled in the art to which the present invention pertains to the detailed description of the present invention and other forms of embodiments within the essential technical scope of the present invention. Could be implemented.

Here, the essential technical scope of the present invention is shown in the claims, and all differences within the equivalent scope should be interpreted as being included in the present invention.

As such, when the data acquisition apparatus according to the present invention is used, data can be collected, measured, and controlled remotely through the Internet. In addition, since the device can be used freely in a laptop or laptop, it is easy to move and use.

Claims (12)

Web connection control unit connected to internet repeater or Ethernet communication equipment to receive and transmit data by TCP / IP And a data collecting unit connected to the web connection control unit to collect, measure and control data. The method of claim 1, The data acquisition unit includes a digital signal input and output unit to enable the input and output of a digital signal with an external device. The method of claim 1, And the data collecting unit includes an analog / digital converting unit converting an external analog signal into a digital signal and inputting the same to a computer. The method of claim 1, The data acquisition unit comprises a digital to analog converter for converting the digital data transmitted from the computer into an analog signal and outputting to the outside. The method of claim 1, And the data acquisition unit comprises a counter / timer unit for counting an external input pulse or using a timer as a result to input a result to a computer. The method of claim 3, The analog / digital converting unit may enable only a desired channel even when two or more analog signals are input from the outside. The method according to any one of claims 2 to 5, Transmitting a decoded signal to the device to be written, transmitting data to the device using the same output line as the decoded signal, and then transmitting a write signal to enable the device to selectively write data to the device. Data acquisition device, characterized in that. The method according to any one of claims 2 to 5, And transmitting a decoding signal to a device to be read, enabling the device, and transmitting a read signal to selectively read from the corresponding device. The method of claim 8, If the data to be read is 8 bits or less, the data is read using an 8-bit input signal line of a microprocessor included in the web connection controller. If the data to be read is 8 bits or more, the data is read sequentially divided by 8 bits. A data acquisition device. Data acquisition device including a web connection controller connected to an Internet repeater or Ethernet communication equipment to receive and transmit data by TCP / IP and a data collector connected to the web connection controller to collect, measure, and control data. To Enabling the device by transmitting an address decoding signal to a device to which data is to be written; Transmitting data via TCP / IP; And Writing the data to a device to which the address decoding signal is transmitted. Data acquisition method comprising a. Data acquisition device including a web connection controller connected to an Internet repeater or Ethernet communication equipment to receive and transmit data by TCP / IP and a data collector connected to the web connection controller to collect, measure, and control data. To Enabling the device by transmitting an address decoding signal to a device to which data is to be read; And Reading data from a device to which the decoded signal has been transmitted Data acquisition method comprising a. The method of claim 11, If the data to be read is 8 bits or less, the data is read using an 8-bit input signal line of a microprocessor included in the web connection controller. If the data to be read is 8 bits or more, the data is read sequentially divided by 8 bits. A data acquisition method.

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