IPC분류정보
국가/구분 |
United States(US) Patent
등록
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국제특허분류(IPC7판) |
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출원번호 |
US-0222996
(1994-04-05)
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발명자
/ 주소 |
- Fou Hsu-Chao (No. 109
- Tunnel 316
- Dah Shuenn 3 Road Kaohsiung TWX)
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인용정보 |
피인용 횟수 :
12 인용 특허 :
0 |
초록
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A control circuit device of a reverse osmosis drinking water machine has a microcomputer unit controlling the working of various peripheral circuits and enabling the drinking water machine to determine the quality of the drinking water and to clean automatically the filtration elements of the basis
A control circuit device of a reverse osmosis drinking water machine has a microcomputer unit controlling the working of various peripheral circuits and enabling the drinking water machine to determine the quality of the drinking water and to clean automatically the filtration elements of the basis of the determined quality of the drinking water. The device is further provided with an output unit capable of giving an advance warning to remind the user of the need of replacing the worn-out filtration elements. The output unit is also capable of terminating automatically the water-making process when the PPM value of the drinking water so made is not in conformity with the health standard.
대표청구항
▼
An intelligent and all-bearing control circuit device of a reverse osmosis drinking water machine which filters water by means of a plurality of filtration elements, comprising a microcomputer unit, a water monitoring system, an output unit, a switch system, and an electric power driving system, whe
An intelligent and all-bearing control circuit device of a reverse osmosis drinking water machine which filters water by means of a plurality of filtration elements, comprising a microcomputer unit, a water monitoring system, an output unit, a switch system, and an electric power driving system, wherein: said microcomputer unit having an output end and an input end for processing signals transmitted thereto; said water monitoring system having an output end connected with said output end of said microcomputer unit and sending out signals to said microcomputer unit via said output end of said water monitoring system to said input end of said microcomputer unit, for measuring water quality signal; said water monitoring system comprising an analog-digital converter; said switch system having an output end connected with said input end of said microcomputer unit for data searching and data setting up, said switch system comprising a SW1 starting key, a SW2 key for setting up the data at the time when the first filtration element replaced, a SW3 key for setting up the data at the time when the second filtration element replaced, a SW4 key for setting up data, a SW5 key for searching data, and a SW6 key for alternating a water-making switch; said output unit, which comprises a driving circuit, an LCD displaying circuit and a speech circuit, having an input end connected with said output end of said microcomputer unit, for displaying instructions sent by said microcomputer unit in which the signals from said water monitoring system and said switch system are processed, whereto said speech circuit is used in receiving breakdown signals and providing warning signals of replacing the worn-out filtration element; said electric power driving system, which is a source of operating power for driving said microcomputer unit, said water monitoring system, said output unit, and said switch system, having a direct current power supplying device for supplying the power that is required for the normal operation of said microcomputer unit, said water-monitoring system, said driving circuit of said output unit, and said switch system; said electric power driving system further comprising a standby power source IC which can be put into service on an emergency basis at such time when a power outage breaks out; said microcomputer unit comprising a central processing unit, a time clock IC, a random access memory, an erasable programmable read only memory, a bolted lock decoder, a first interface circuit, a second interface circuit, a data bus, and an address bus; in which said data bus and address bus are conductors for common connection; said central processing unit having data pins D0, D1, D2, D3, D4, D5, D6 and D7 connected with said data bus; address pins A0, A1, A2, A3, A4, A5, A6, A7, A8, A9, A10, A11, A12, A13, A14 and A15 connected with said address bus; data reading pins RD connected respectively with an OE pin of said random access memory, an OE pin of said erasable programmable read only memory, an I4 pin of said bolted lock decoder, a RD pin of said first interface circuit, a RD pin of said second interface circuit, and a RD pin of said analog-digital converter of said water monitoring system; data writing pins WR connected respectively with a WE pin of said random access memory, an I3 pin of said bolted lock decoder, a WR pin of said first interface circuit, a WR pin of said second interface circuit, a WR pin of said analog-digital converter, for controlling the access of data such as the PPM value and the current value of the volume of drinking water made and the service life of said filtration elements; said time clock having address and data pins AD0, AD1, AD2, AD3, AD4, AD5, AD6 and AD7 connected with said data bus and an IRQ pin connected with an interruption pin INT of said central processing unit; said random access memory having data pins D0, D1, D2, D3, D4, D5, D6 and D7 connected with said data bus and address pins A0, A1, A2, A3, A4, A5, A6, A7, A8, A9 and A10 connected with said address bus, for storing information of the time computed by said time clock IC, the parts per million (PPM) value of drinking water which is detected by said water monitoring system, and said current status of service life of each of said filtration elements; said erasable programmable read only memory having data pins D0, D1, D2, D3, D4, D5, D6 and D7 connected with said data bus and address pins A0, A1, A2, A3, A4, A5, A6, A7, A8, A9, A10, A11, A12, A13 and A14 connected with said address bus, for storing therein a service life information of each of said filtration elements; said central processing unit being responsible for search instruction to make sure if said first and second interface circuits are grounded with the pins of said SW1, SW2, SW3, SW4, SW5, and SW6 keys of said switch system; said bolted lock decoder having pins I0, I1, I2, I5, I6, I7, I8 and I9 connected respectively with control pins M1, MREQ, IORQ, A13, A14, A15 and RFSH of said central processing unit and a STBY pm and a RESET pin of said time clock IC; said bolted lock decoder further providing a plurality of output end pins F0, F1, F7, F2, F3, F4, F5, F6 and F8 connected respectively with a CD pin of said erasable programmable read only memory, a CEIN and a WATCH pins of said standby power source IC of said electric power driving system, an AS pin, a DC pin and a D/W pin of said time clock IC, a CS pin of said first interface circuit, and a CS pin of said second interface circuit; said first interface circuit, which is an interface for transmitting data information among said driving circuit, said LCD displaying circuit, said speech circuit, and said switch system, having data pins D0, D1, D2, D3, D4, D5, D6 and D7 connected with said data bus, and data pins A0 and A1 connected respectively with an A0 pin and an A1 pin of said central processing unit and an A0 pin and an A1 pin of said second interface circuit; said first interface circuit further having pins PA0, PA1 and PA2 connected with an output end of said driving circuit; and said second interface circuit, which is an interface for transmitting data information, having data pins D0, D1, D2, D3, D4, D5, D6 and D7 connected with said data bus.
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