CN104048806A - Multi-oil-tank data fusion leakage warning device and data processing method - Google Patents

Abstract

The invention relates to a multi-oil tank data fusion leakage alarm device and a data processing method. The single-chip microcomputer control system communicates with the existing gas station monitoring instrument through the RS232 communication port, and the single-chip microcomputer control system collects and compares data in real time. At the same time as the liquid level of the oil tank at the gas station, it can accurately detect whether the gasoline volume in the tank has changed abnormally and decide whether to alarm. It realizes the diversification and intelligence of control functions, simplifies the circuit, reduces the cost, improves the stability, and improves the accuracy through data fusion processing. In the current situation of energy shortage and tight oil supply, this work is The energy field has a good application prospect.

Description

Multi-tank data fusion leakage alarm device and data processing method

technical field

The invention relates to an alarm device, in particular to a multi-oil tank data fusion leakage alarm device and a data processing method.

Background technique

At present, the highway gas station industry with Sinopec and PetroChina as the main body is developing rapidly, but the oil tanks of these gas stations are mostly buried, and the various types of monitors used in the gas stations are only for real-time monitoring of external oil output. , which makes it difficult to detect the leakage at the bottom of the underground oil storage tank, which not only causes large oil leakage economic losses and environmental pollution, but also easily causes fire and explosion.

Take the TLS-2 monitor used by the existing Sinopec/CNPC gas stations in Shanghai as an example. Its built-in alarm function is only triggered when the buried oil storage tank has a low oil level or a high water level. Realization, if there is a small range of oil level fluctuations, it is regarded as a normal phenomenon and does not trigger the alarm function, which leads to leakage on the surface of the tank or failure to remind the relevant staff to catch up in time when there is oil theft after work. Go to the scene to check for hidden dangers.

Contents of the invention

The present invention aims at the problem that the existing monitoring device can only detect the liquid level, volume and other data in the oil tank, but cannot alarm when the oil volume in the oil tank changes abnormally, and proposes a multi-tank data fusion leakage alarm device and The data processing method can realize the oil storage tank leakage monitoring technology and the system that can realize the leakage alarm function. Once the tank body leaks, an alarm can be issued immediately to remind the personnel on duty at the gas station to check the condition of the oil tank, timely eliminate potential safety hazards or prevent oil theft. occur.

The technical solution of the present invention is: a multi-tank data fusion leakage alarm device, including a box body, a DC power supply, an audible and visual alarm, an alarm indicator light, a normal operation indicator light, a power switch, a non-self-locking Test button, gear setting button, single-chip microcomputer control system inside the box, RS232 port, power socket, sound and light alarm connection port on the side of the box; single-chip microcomputer control system includes the minimum control system of single-chip microcomputer, RS232 Alarm drive circuit module, LED diode circuit module and function button module; the minimum control system of the single chip microcomputer communicates through the RS232 serial port communication module and the external gas station monitoring instrument through the RS232 port for data communication; the non-self-locking test button and setting The alarm value gear setting button and the function button module input the button signal to the minimum control system of the single-chip microcomputer, and the minimum control system of the single-chip microcomputer outputs the control signal to control the alarm indicator light and the normal operation indicator light; the minimum control system of the single-chip microcomputer outputs the control signal through the sound and light alarm The drive circuit module controls the external sound and light alarm, and the DC power supply supplies power to the single-chip microcomputer control system through the power socket of the box body.

A data processing method for a multi-tank data fusion leakage alarm device. The alarm value set by the gear setting button is sent to the minimum control system of the single-chip microcomputer. The data is decoded into initial floating-point data, and the filtered and fused initial data of each oil tank is stored in the internal storage unit of the microcontroller; when the liquid level of the oil storage tank fluctuates, the oil tank leakage alarm device filters and fuses the data The final real-time data of each oil tank is compared with the initial data in the storage unit. When the comparison value is less than the set warning value, it is considered as normal fluctuation, and when the comparison value is greater than the set warning value, it is considered as abnormal fluctuation. , when abnormal fluctuations occur, an alarm signal is output to drive the sound and light alarm through the driving circuit module of the sound and light alarm.

The beneficial effect of the present invention is that: the multi-oil tank data fusion leakage alarm device and data processing method of the present invention can accurately detect whether the gasoline volume in the tank has abnormal changes and determine whether the oil tank liquid level in the gas station is monitored in real time. Whether to call the police. It realizes the diversification and intelligentization of control functions, simplifies the circuit, reduces the cost, improves the stability, and improves the accuracy through data fusion processing. In the current situation of energy shortage and tight oil supply, this work is The energy field has a good application prospect.

Description of drawings

Figure 1 is a connection structure diagram of a data fusion leakage alarm device for multiple oil tanks;

Fig. 2 is a system structure diagram of the multi-oil tank data fusion leakage alarm device of the present invention;

Fig. 3 is a connection diagram of the single-chip microcomputer control system of the multi-oil tank data fusion leakage alarm device of the present invention;

Fig. 4 is a software flow chart of the multi-tank data fusion leakage alarm device of the present invention.

Detailed ways

As shown in Figure 1, the connection structure diagram of the multi-tank data fusion leakage alarm device, the existing TLS-2 detection instrument at the oil station is connected to the multi-oil tank data fusion leakage alarm system; the multi-oil tank data fusion leakage alarm device includes multi-oil Tank data fusion leakage alarm box 1, DC power supply 2, sound and light alarm 3; the front of the multi-tank data fusion leakage alarm box includes alarm indicator light 7, normal operation indicator light 8, ship-type power switch 9, non-self-locking Test button 10, gear position setting button 11; the side includes RS232 port 4, power socket 5, sound and light alarm connection port 6. As shown in Figure 2, the system structure diagram of the multi-oil tank data fusion leakage alarm device, the multi-oil tank data fusion leakage alarm box 1 is a single-chip microcomputer control system, and the single-chip microcomputer control system is connected with the gas station monitoring instrument through the RS232 serial port, and the single-chip microcomputer control system The connecting port 6 is connected with the sound and light alarm 3, and the 5V DC power supply 2 supplies power to the single-chip microcomputer control system through the power socket 5.

The connection diagram of the single-chip control system is shown in Figure 3. The single-chip control system includes the minimum control system of the single-chip microcomputer, the RS232 serial port communication module, the driving circuit module of the sound and light alarm, the LED diode circuit module and the function button module. The minimum control system of the single-chip microcomputer communicates through the RS232 serial port The module communicates with the gas station monitoring instrument, the gear setting button sets the alarm value and sends it to the minimum control system of the single chip microcomputer, and the minimum control system of the single chip microcomputer outputs signals to control the alarm indicator light, the normal operation indicator light and the sound and light alarm.

After the system is connected, turn on the power switch 9, and the main program of the internal software will start automatically with a delay of 4s. The sound and light alarm and the lighted phenomenon of the alarm indicator light 7 in the light alarm 3 illustrate that the internal program is running well, and there is no abnormal failure, so the staff can use it with confidence.

The internal single-chip control system of the multi-tank data fusion leakage alarm device in operation runs in a continuous cycle according to the program flow shown in Figure 4, and decodes the initial data of each oil tank read one by one into initial floating-point data, and converts the filtered and fused The initial data of each oil tank is stored in the internal storage unit of the microcontroller. When the liquid level of the oil storage tank fluctuates, the oil tank leakage alarm device compares the real-time data of each oil tank after data filtering and fusion with the initial data in the storage unit. It is considered to be a normal fluctuation, and when the comparison value is greater than the set warning value, it is considered to be an abnormal fluctuation. When an abnormal fluctuation occurs, the sound and light alarm will be driven to remind the relevant staff to rush to the scene to troubleshoot the fault.

The various data are realized in ASCII, and its main feature is to use 7-bit binary numbers to represent all uppercase and lowercase letters and numbers 0 to 9.

The voltage of the external sound and light alarm is 5V, and its main feature is that it can simultaneously send out two kinds of alarm signals, sound and light.

Claims (2)

1. A multi-tank data fusion leakage alarm device is characterized in that it includes a box body, a DC power supply, and an audible and visual alarm, and the front of the box body has an alarm indicator light, a normal operation indicator light, a power switch, and a non-self-locking test Buttons, gear setting buttons, single-chip microcomputer control system inside the box, RS232 port, power socket, sound and light alarm connection port on the side of the box; single-chip microcomputer control system includes the minimum control system of single-chip microcomputer, RS232 serial port communication module, sound and light alarm Driver circuit module, LED diode circuit module and function button module; the minimum control system of the single chip microcomputer communicates with the gas station monitoring instrument through the RS232 serial port communication module and the RS232 port; the non-self-locking test button for sending the self-test signal, setting the warning The value gear setting button and the function button module input the button signal to the minimum control system of the single-chip microcomputer, and the minimum control system of the single-chip microcomputer outputs the control signal to control the alarm indicator light and the normal operation indicator light; the minimum control system of the single-chip microcomputer outputs the control signal to drive through the sound and light alarm The circuit module controls the external sound and light alarm, and the DC power supplies power to the single-chip microcomputer control system through the power socket of the cabinet. 2. according to the data processing method of the described alarm device of claim 1, it is characterized in that, the stall setting button sets the warning value and sends into the minimum control system of the single-chip microcomputer, and the minimum control system of the single-chip microcomputer gathers gas station monitoring instrument data, reads one by one The initial data of each oil tank is decoded into initial floating-point data, and the filtered and fused initial data of each oil tank is stored in the internal storage unit of the single-chip computer; when the liquid level of the oil storage tank fluctuates, the oil tank leakage alarm device passes through The real-time data of each oil tank after data filtering and fusion is compared with the initial data in the storage unit. When the comparison value is less than the set warning value, it is considered as normal fluctuation. When the comparison value is greater than the set warning value, it is regarded as normal fluctuation. If it is considered to be abnormal fluctuation, if abnormal fluctuation occurs, an alarm signal will be output to drive the sound and light alarm through the driving circuit module of the sound and light alarm.