CN85202565U

CN85202565U - Microcomputer programming controller for large scale washing and dewatering machine and dry washing machine

Info

Publication number: CN85202565U
Application number: CN 85202565
Authority: CN
Inventors: 娄淑慧; 章焕文
Original assignee: NANJING COLLEGE OF AERONAUTICS
Current assignee: NANJING COLLEGE OF AERONAUTICS
Priority date: 1985-02-03
Filing date: 1985-02-03
Publication date: 1987-03-11

Abstract

The utility model discloses a controller which comprises an industrial control unit ICU, a clock signal controlling program counter, a memory, a flip flop, a decoder, a timing circuit, a gate circuit, a start-stop circuit, an input, an output, parts, etc. The utility model has the advantages of few instruction, simple control, and low cost, and has two 'automatic' and 'manual' working states; the controller can complete all the functions of washing, dewatering, dry cleaning, giving an alarm when the work is finished, etc., makes an automatic detection, and controls the temperature and the water level in the washing machine cylinder and the functions of the unbalance and the vibration in the cylinder. When the controller adopts the manual working state, the positive and the inverse runnings of washing and the low speed, the medium speed, and the high speed of dewatering have safe and interlocked function completed by useful program.

Description

Microcomputer programming controller for large scale washing and dewatering machine and dry washing machine

The utility model is the full-automatic microcomputer program controller that is used to control large-scale washer-extractor and dry cleaner.

The microcomputer-controlled automatic washing machine that Japan Patent JP59037988 and JP59037987 are announced, its microcomputer controller be by central processor CPU, memory, clock counter, timing circuit, gate circuit, input, major parts such as output composition.Wherein memory has EPROM and RAM, in three cover programs are arranged, during work the program in the EPROM is transferred to RAM, revise with keyboard again.Though this controller function is stronger, to instruct manyly, control is complicated, and power type is also many, and-8V ,-10V ,-30V are arranged-5V.

Task of the present utility model is that a kind of instruction of manufacturing is few, and control is simple, and cost is low, the microcomputer program controller of being convenient to operate that can finish the prior art said function.

Microcomputer program controller of the present utility model is by one bit microprocessor (being called industrial control unit ICU), memory, clock signal control program counter, trigger, gate circuit, the start and stop circuit, timing circuit, importation, output, for the controller of dry cleaner, also add major part compositions such as decoder.

Central processing unit of the present utility model adopts one bit microprocessor, only carries out a simple logical operation, just can finish various controls.This is four, eight and sixteen bit microprocessor can not than.

Memory of the present utility model has only EPROM, in the quadruplet standardization program is arranged.According to actual needs, halfway any time, also can skip certain section program or repeat certain section program easily with each section period in the method update routine of switch setting.

Timing circuit of the present utility model is made up of the time base circuit sum counter chip that produces the built-in oscillation frequency.

Because the utility model adopts one bit microprocessor, its instruction is few, and control is simple, and cost is low, is convenient to operation, is applicable to the hotel, large-scale restaurant, and it is large-scale that hospital and industrial and mining enterprises use, medium-sized washer-extractor and dry cleaner.

The utility model has following accompanying drawing.

Accompanying drawing 1 structure general diagram.

Wherein dot for the structured flowchart of washer-extractor.

The theory diagram of accompanying drawing 2 washing dehydration machine controllers.

The decoder circuit figure of accompanying drawing 3 dry cleaner controllers.

Accompanying drawing 4 timing circuit figure.

With reference to the accompanying drawings 1, accompanying drawing 2 and accompanying drawing 3, the utility model is elaborated.

By industrial control unit ICU(2) clocking, its clock frequency depends on the coupling of supply voltage and resistance.As, when voltage is 5V, when build-out resistor was 1M Ω, clock frequency was 50Kc.This clock signal is given the count pulse input CP end of program counter (3), when each clock pulses produces, triggers start-stop counter, and makes counter add 1, and its accumulated counts is as the address input memory (1) of storage unit.Along with the increase of counting, just can from memory (1), read the instruction that is stored in wherein successively one by one.Every instruction is 8 words, and high 4 is instruction code, is input to industrial control unit ICU(2) in decipher, to finish 16 kinds of operations such as peek, poke and logical operation; Low 4 is address code, and low 3 bit address sign indicating numbers are wherein delivered to input data selector 5G14512(4) and output data latch 5G14599(5), input, output with definite 8 tunnel.And the highest addresses sign indicating number:

Concerning the controller of washer-extractor, the NAND gate electricity value (9) that is sent to each input of control respectively, pio chip is selected for use as sheet.Utilize industrial control unit ICU(2) JMP end pulse-triggered d type flip flop (10), NAND gate circuit (9) is also delivered in the output of d type flip flop (10), again with industrial control unit ICU(2) write pulse W output with, can carry out 8 sheet choosings, maximum like this have 32 tunnel inputs and 32 tunnel to export.The washing dehydration machine controller of present embodiment has only adopted 15 tunnel inputs and 17 tunnel outputs;

Controller for dry cleaner, this highest addresses sign indicating number, then send into decoder (8), industrial control unit ICU(2) also sends into decoder (8) behind JMP end and the FO end pulse-triggered d type flip flop (10), and each NAND gate circuit (9) is delivered in 8 outputs of decoder (8), again with industrial control unit ICU(2) write pulse W output with, can carry out 16 sheets choosings, therefore can have 64 tunnel inputs and 64 tunnel to export at most.The dry cleaner controller of present embodiment has adopted 25 tunnel inputs and 23 tunnel outputs.

For guaranteeing have the quadruplet program for washing to be stored in the memory (1), present embodiment is memory MC2716(capacity 2K * 8) be divided into four pages, each page has 512 memory cells, promptly can store 512 instructions at most, and they are by memory cell address A ₀～A ₆Decision.Utilize band switch decision A ₉, A ₁₀Four kinds of states, promptly be equivalent to the quadruplet program for washing.

Giving of program counter (3) put the whole ground connection of signal input part, it is low level, and industrial control unit ICU(2) the output of FF end pulse function be connected to giving of counter (3) and put gating input PE end, like this when carrying out the last item command N OPF of program for washing, the FF end just has a pulse output, making counter (3) output equal to give and put the signal input, promptly is low level entirely, and program for washing just turns back to and starts anew.

Accompanying drawing 3 is timing circuits of present embodiment, and it is that the time base circuit that the FX555 chip constitutes the built-in oscillation frequency is constituted with two counter 5G14516 chips.Its cycle of oscillation can be according to formula:

T＝0.693（R ₁＋2R ₂）C

Select the value of resistance R and capacitor C arbitrarily.

The square-wave cycle that this oscillator produces is 17.5 seconds.

The square wave that oscillator produces is as the trigger impulse of counter 5G14516, and in each cycle, rolling counters forward once a high potential just occurs on its corresponding pin, and two 5G14516 can count 2 ⁸=256 square waves.8 square wave train of several recompositions that the counter meter is arrived, deliver to respectively on the corresponding pin of input chip 5G14512 of cyclelog, incoming timing condition as cyclelog, be equipped with corresponding program statement, make corresponding action with regard to making this counting procedure controller timing condition in accordance with regulations.With eight switches and SR, finish the initial position setting.Can make program from arbitrary unit easily.

(11) in the accompanying drawing 2 are delay circuits, are made of FX555 chip and resistance, electric capacity etc., have connected between pio chip and the input chip, with the positive and negative running of control washing machine.During commutation, 3.5 seconds delay time of midfeather.

(7) of accompanying drawing 1 are (7) in the accompanying drawing 2, are the start and stop circuit of present embodiment, and it is used for controlling work of the present utility model and zero clearing.When supply resets input RST signal when being high level, full machine is in cleared condition, and during for low level, full machine is in running order.

For preventing to disturb, photoelectrical coupler is all used in input and output, and inside and outside power supply is separated.And there is light emitting diode that various running statuses are shown.

The utility model has " automatically " and " manually " two kinds of duties, can finish various functions such as washing, dehydration, dry-cleaning and end-of-job warning and detect and control imbalance in temperature, water level and the cylinder in the washing machine cylinder automatically, the function of vibration.In addition, any time in the course of the work, according to actual needs, also can skip certain section program or repeat certain section program easily with each section period in the method update routine of switch setting.

In " manually " when work, useful program is finished between positive and negative running and low speed, middling speed, the high speed dewatering the safety interlock effect of doing washing is in order to avoid maloperation damages machine.

Claims

The microcomputer controller that is used for leviathan is by central processor CPU, memory, and clock counter, trigger, timing circuit, delay circuit, gate circuit, the start and stop circuit, input, output is formed.Feature of the present utility model is:

(1) central processing unit is industrial control unit ICU;

(2) timing circuit is made up of the time base circuit sum counter chip that produces the built-in oscillation frequency;

(3) memory has the EPROM of quadruplet standardization program in being;

(4) dry cleaner microcomputer controller of the present utility model also has decoder.