Abstract

The principle of public toilets is a very small amount of foam into the water thousands of times (use of hand-washing water), the formation of white foam over the exclusive use of inside toilet, no longer to flush and change the traditional water seal for sealing foam, sensory elegant and clean. Their droppings fall into the bubble in粪池after more than 70 kinds of flora and efficient high-performance complex biochemical reaction in the eggs to kill the bacteria and the formation of efficient fertilizer after. More liquid and then processed to become more than meet the national emission standards for two of "water", but also re-use in watering plants, planting, aquaculture. Public toilets, the bubble effective sealing, with fecal odor control粪池forced to focus on the toilet space efficient air deodorizing device, a full range of deodorizing system, created a good environment odorless. Water reuse as a result of a thorough solution to the traditional toilet stool serious disadvantages of polluting the environment.

I. System Overview

Process Flow Diagram

1, the control needs

1), man-machine interface + plc control: the core system components for touch screen + PLC. Control process in accordance with the requirements of its control procedures have been prepared within the PLC, as long as access to power, the PLC system can be run automatically by the program. The accused devices are set up for each hand / auto / stop / switch, a variety of state to do shows in the man-machine interface, and can switch control. Moreover, once the PLC fails, or charged with non-normal operation of equipment commissioning, control cabinet can be opened manually stop button device.

2), man-machine interface + module control: the core component of the system for man-machine interface touch screen, and switch modules of mining equipment output. TPC through man-machine interface configuration software to run within the project, we are prepared in accordance with the control process control procedures, the control system to run automatically. Moreover, once the PLC fails, or charged with non-normal operation of equipment commissioning, control cabinet can be opened manually stop button device.

2, control flow

1), Dosing Process

2), foam process

Second, the hardware structure:

1, I / O analysis:

a) 8 months squat toilet

Equipment and signals: Each urinal has a photoelectric sensor (switch input), and a foam pump (switch output);

Control: You can manually foam, foam can be automatic photoelectric control;

b) 2 months toilet seat

Equipment and signals: with the squat toilet;

Control: with the squat toilet;

c) 3 months urinal

Equipment and signals: one for each urinal has a foam pump (switch output);

Control: regular foam;

d) 1 months药罐

Equipment and signals: with a Dosing pump (switch output);

Control: Dosing manually or automatically from time to time plus drug;

e) 1 mixed pool

Equipment and signals: with a mixing pump (output switch), Level device (switch input), make up pump (switch output)

Control: Dosing, the mixing pump to start automatically or manually control; level pump control premium;

Integrated on the system a total of 8 +2 +1 = 11 switch inputs, 8 +2 +1 +2 +3 = 16 switch output.

2, controller analysis:

Option 1 recommended Adam5510KW. Now, do as follows: Adam5510KW is a four-slot logic controller soft, flexible matching can be provided by Advantech 5000 Series rich I / O modules, matching 5056 is an output of 16, a 5051 is 16 input. In this way, we can be flexible to achieve a large number of local I / O and expansion of the centralized control.

Option 1 / 2 are recommended tpc. Requires some computer graphics simulation, data display and alarm limit, we recommend the use of embedded IPC TPC, model: TPC105TC-b. This is a set of low-power embedded CPU as the core (frequency 200 MHz), high-performance embedded industrial computer integration.

Option 2 can be used Adam module: Adam 4055 digital input and 8 output module 8.

Note:

Option 1 is recommended, because the man-machine interface TPC105TC-b's role is to monitor and control the operation of plc, plc automation processes, so, spread the risk, that is, when the TPC problems, plc can be run automatically .

Option 2 compared with 1, functions of all concentrated in the TPC, so once the TPC problems, a greater impact. However, we can also manually through the control cabinet to reduce the impact of the button control. Advantage of this program is a low price.

Third, analysis of system software:

1, running software software: mcgs embedded version of the configuration works.

Note: the above picture for the control interface, through the image of the picture, in the foam state, some flickering effect, at the same time, you can click the flashing position, manual stop / start operation.

2, control logic:

Foam logic:

The water level will be judged and squat foam to determine:

3, in accordance with customer demand, the production of screen savers. The following five high-definition picture of the cycle of rolling interface.

Fourth, product details:

Option 1

Option 2