KR970070992A - Corrosion detection device and its analysis control program - Google Patents

Abstract

The present invention relates to a corrosion detection apparatus and an analysis control program, and more particularly, to a corrosion detection apparatus and an analysis control program, which are capable of detecting a corrosion degree of all metal structures buried in the ground by measuring a potential difference between the reference electrode and a metal structure, It is possible to solve the problem of measurement error and management and analysis of huge potential data by analyzing and controlling by a computer which is a device that has a built-in program for analyzing potential data through a communication interface. It can greatly reduce the budget and save a great deal of income.

Description

Corrosion detection device and its analysis control program

Since this is a trivial issue, I did not include the contents of the text.

1 is a block diagram showing an embodiment of the present invention, FIG. 2 is a sequential flow chart of an analysis control program by an apparatus of FIG. 1, FIG. 3 is a diagram showing another embodiment of the present invention, Fig. 5 is a schematic diagram of the corrosion potential measurement of the metal structure, Fig. 6 is a circuit diagram of an adapter board, Fig. 7 is an enclosure configuration diagram, Fig. 8 is a sequence diagram of the operating system of the corrosion detection device Flowchart.

Claims (15)

The potential difference between the standard positive electrode and the metal structure buried in the electrolyte such as the underground or underwater is measured and the potential data measured in the above can be communicated to the computer 30 which is an apparatus for analyzing the potential data through the adapter 20, , And controls the automatic facility rectifier (50) through the control device (40). The corrosion sensing apparatus (10) according to claim 1, wherein the corrosion sensing apparatus (10) comprises a communication connector (11) for receiving and communicating power data, an A / D converter (12) for converting an analog signal to a digital signal, A Parallel Array Logic (PAL) 13 having a function of dividing data into a memory, an address decoder (ddress decoder) 14 for coding data to be stored at a desired address, an SRAM 15 for temporarily storing data, A CPU 16 for controlling a control signal and a data signal, a backup battery 17 for preventing loss of data stored in the memory, and a power supply unit 18 for supplying power to the entire circuit. The corrosion detection device being characterized in that: The corrosion detection device according to claim 1, wherein the adapter (20) comprises a rectifier (21) and an MAX232 (22) for converting AC power to DC power and performing RS232C communication as an international communication standard. The corrosion detection device according to claim 1 or 2, wherein the CPU (16) uses a 1 chip microprocessor to have a ROM (Read Only Memory) therein. The method of claim 1 or 2, wherein the supply of the backup battery (17) is interrupted by using an EEPROM (Electrically Erasable and Programmable Read Only Memory) (15a) instead of the SRAM (15) ) Is lower than the circuit driving voltage, it is possible to prevent data loss. 3. A method according to claim 1 or 2, wherein a surge protector (19) using a neon lamp is added between the communication connector (11) and the A / D converter (12) Wherein the internal circuit can be protected when a surge is input. The corrosion detection device according to claim 1 or 2, wherein the corrosion sensing apparatus (10) can be downsized by replacing the A / D converter (12) and the memory element with a small SMD type. The method according to claim 1 or 2, further comprising the steps of: adding a separate timing circuit to the CPU (16) using a power down mode CPU and supplying an interrupt signal to the CPU (16) Wherein the power supply unit supplies power to the measurement circuit or performs a power down mode during the entire measurement time to increase the battery life of the power supply unit. 3. The corrosion detection device according to claim 1 or 2, wherein the communication interface is replaced by RS422 instead of RS232C, a modem, etc. to enable remote communication. The communication connector (11) according to claim 1 or 3, wherein the communication connector (11) is constituted by a total of 6 pins such as a 2 pin for corrosion potential input, 2 for charging the secondary battery, 2 pins for serial communication, A small amount of solid epoxy having elasticity is injected into the male connector 67, and the female connector 66 is inserted into the male connector 67. The female connector 66 is connected to the female connector 66, Characterized in that the ring-shaped rubber packing (67) is used for complete waterproofing. A PCB case 61 in which a PCB (Printed Circuit Board) of a corrosion detection device is inserted, a battery case 62 in which a power supply unit 18 is inserted, and a corrosion detection device And a locker 63 which is a lock device of a communication connector 11 to which a communication cable of the computer 10 and the computer 30 is connected and includes a rubber packing 64 for waterproofing the inside from the outside and a communication connector 11. An enclosure (60) of a corrosion sensing device (11) characterized in that an epoxy (65) treatment is applied to waterproof the surroundings. A serial port COM1 and a serial port COM2 and a parallel port LPT1 and an LPT2 are set and an ID name for down loading to the corrosion detection device and a sampling interval ), The measurement start and end times, the current time, the label, etc., to set the system environment, to identify whether the corrosion monitoring device is malfunctioning through a line test, (Down Loading) of the corrected and edited ID name to the corrosion detection device by using communication such as RS232C, and the potential data stored in the corrosion detection device is transmitted to the computer And loading the data stored in the hard disk of the computer and performing analysis and control to output the result of the analysis and analysis to the print. 13. The system of claim 12, wherein the analysis control program comprises: communication required for performing functions of the operating system; configuration file creation at the time of setting; down loading; Time synchronization and computer vision are used to communicate with each other. The communication function and the potential data are organized by time and output to a data sheet in the form of a data sheet. The information on the corrosion detection system of the city is organized into a table and the potential is reproduced like the waveform recorded by the analog recorder so that the maximum and minimum values, the over voltage, the under voltage, A voltage chart is provided to judge the corrosion state of the measured metal structure, the presence or absence of corrosion, and the AC induction from the outside. The Histogram is a histogram that can be used to judge the presence or absence of the metal structure by calculating the number and frequency of occurrences of each step by dividing the stomach into about 20 steps. And a data analysis function such as a dislocation distance distribution diagram which can recognize a corrosion point of a structure and a coating defect portion of the coated structure. The corrosion detection analysis control program according to claim 12 or 13, wherein a plurality of measurement times and end times are set and controlled. And is configured to perform a desired function by embedding an unchangeable operating system in a ROM, which is written in a machine language that can be understood by a microprocessor in order to measure the potential data and store the data in a memory, When the corrosion detection device is activated, it accesses address, sets up timer, clears memory, counts time, checks communication port and performs all functions. (ID), Name (Name), Interval, Start Time, and End Time (End) are checked to see if the condition for the set is set up. Time) is set and stored in the memory, the time is counted, the time is counted, and the data is read and stored in the memory Operating system of the corrosion detection device. ※ Note: It is disclosed by the contents of the first application.