KR0174360B1 - Water purifier capable of receiving radio teletext - Google Patents

Abstract

The present invention relates to a water purifier, and more particularly, to a water purifier capable of receiving a general telephone function and RDS (RADIO DATA SYSTEM) broadcasting, that is, radio character broadcasting, in addition to the natural function of the water purifier.

In particular, in the water purifier circuit 20 which a user can drink as drinking water through a well-known water purification process, the display unit 50 controls and displays each related operation of the water purifier circuit 20. A microcomputer 10 which collectively controls the telephone circuit 40 and the radio character broadcasting circuit 30; Front end 31, intermediate frequency amplifier A1, AM / FM detector 32, stereo demodulator 33, character broadcast modulator 35, error correction for converting the frequency received through the antenna ANT A radio character broadcasting circuit 30 for outputting audio signals and characters obtained through a series of processes of the government unit 36 through the display unit 50 and the speaker SP under the control of the microcomputer 10; The buzzer unit 41 detects a call signal applied from the trunk line T and R, the bridge circuit unit 42 connected to the trunk line to form a call loop, and is activated by a hook switch 44 signal when a call path is formed. A detection unit 43 input to the microcomputer 10, a switching unit 45 for intercepting a call path by the detection unit 43 after the call is terminated, a microphone M2, and a speaker phone connected to the speaker SP ( It is characterized by consisting of the telephone circuit 40 made of 46), there is a further improved effect on the reliability of the product for the addition of functionality.

Description

Water Purifier Circuit for Telephone Call and Radio Broadcasting

The present invention relates to a water purifier, and more particularly, to a water purifier capable of receiving general telephone functions and RDS (RADIO DATA SYSTEM) broadcasting, that is, radio character broadcasting, in addition to the natural functions of the water purifier.

Recently, thanks to the development of technology, various electronic products are becoming multi-functional and high-functional, and the composite product which aggregates the unique functions of each electronic product into one product is also becoming a trend.

Accordingly, the water purifier according to the present invention is not an exception, and water purifiers employing various high functions such as reverse osmosis using natural pressure of water and water purifying using semiconductors have been developed and spread.

Therefore, the present inventors also developed a water purifier with high functionality and multifunctionality as described above, and applied for a utility model registration application No. 3836, 1996, 1996 patent application 41462, and 1996 patent application 5402 in Korea. We developed a water purifier with higher functionality through the development process of, and applied for this.

An object of the present invention is to add a telephone circuit in addition to the original water purification function to make drinking water available through the water purification process, you can make a call with the outside without using a separate telephone, and can also receive RDS broadcasting, that is, radio text broadcasting The present invention provides a water purifier configured to perform various functions in a single product by implementing a circuit in a water purifier circuit.

1 is a water purifier control block diagram of the present invention;

2 is a detailed circuit diagram illustrating an embodiment of FIG. 1;

* Explanation of symbols for main parts of the drawings

10: microcomputer, 20: water purifier circuit,

30: radio character broadcasting circuit, 40: telephone circuit,

50: display unit, 60: key input unit,

70: changeover switch, 80: remote control.

In order to achieve the above object, the present invention provides a water purifier circuit which allows a user to drink as drinking water through a well-known water purification process, wherein each related operation of the water purifier circuit is displayed on the display unit, and a general telephone circuit and a radio. A microcomputer that collectively controls the character broadcasting circuit; The microcomputer controls audio signals and texts obtained through a series of processes including a front end, an intermediate frequency amplifying unit, an AM / FM detector, a stereo demodulator, a text broadcasting modulator, and an error correction unit for converting a frequency received through an antenna. A radio character broadcasting circuit output through each display unit and a speaker; A buzzer for detecting a call signal applied from a trunk line, a bridge circuit unit connected to a trunk line to form a call loop, a detector activated as a hook switch signal when a call is formed, and input to the microcomputer, and a call to the detection unit after a call ends. There is a feature consisting of a telephone circuit consisting of a switching unit, a microphone, and a speakerphone connected to the speaker to control the call path.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.

1 is a block diagram illustrating a water purifier control of the present invention, and FIG. 2 is a detailed circuit diagram illustrating an embodiment of FIG. 1.

As shown in the figure, the general water purifier circuit 20, the general telephone circuit 40 and the radio character broadcasting circuit 30 is further interposed, in particular, the speaker SP is a radio character broadcasting circuit 30 And the internal circuit (a, b) is configured to be connected to the changeover switch 70 to be used in common with the telephone circuit (40).

More specifically, reference numeral 10 controls display of each related operation of the water purifier circuit on the display unit, and the formation and disconnection of the call path of the general telephone circuit 40, the connection of the speaker SP when the call path is formed, and It is a one-chip microcomputer (hereinafter referred to as a microcomputer) that collectively controls the radio character broadcasting circuit 30, and is configured to be controlled by an infrared remote control 80 signal as necessary.

(20) is composed of a circuit including an automatic cleaning device (AFS), a pump, a solenoid valve driving unit, and a water level sensor, a water level sensor, an over sensor, a temperature sensor, etc., which are ordinary water-related operation circuits, While connecting to the input terminal and the output terminal of the), the control by the microcomputer 10 is connected so that the relevant operation of each water purifier circuit is displayed on the display unit 50.

Reference numeral 60 is a key input unit which is provided with a volume key of a radio character broadcasting circuit 30, a tuning key and a numeric key of a telephone circuit 40, etc., and inputs them to the input terminal of the microcomputer 10 as a direct key signal of the user. .

40 is a general telephone circuit, a buzzer 41 which is connected to the trunk lines T and R and detects a call signal applied from the trunk lines T and R, and is connected to the trunk lines T and R. The bridge circuit 42 forming a loop, the detection unit 43 activated by the hook switch 44 signal when forming a call, and input to the microcomputer 10, and the detection unit 43 after the call is terminated. And a switching unit 45 for interrupting the call path, a microphone M2, and a speakerphone 46 connected to the speaker SP.

30 is a radio character broadcasting circuit, which includes a front end 31 for converting a frequency received through an antenna ANT that draws radio waves formed of electromagnetic fields and converts them into electrical signals, and a width of a broadcast sideband of a reception frequency. The AM / FM which discriminates the intermediate frequency amplifier A1 which produces | generates the frequency which can pass flatly by the filter of an LC tuning circuit, and the frequency signal suitable for the amplification detected by the said intermediate frequency amplifier A1. A detector 32, a stereo demodulator 33 for separating the output discriminated from the AM / FM detector 32, i.e., a composite signal into left and right signals in synchronization with a pilot signal, and the stereo demodulator 33. It consists of a character broadcasting modulator 35 and an error correcting unit 36 which allow a character to be received by error detection and correction of the error correcting unit 36 under the control of the microcomputer 10 in the combined signal. Same series It is output through each display unit 50 and a speaker (SP) by obtaining the audio signal and a character through the process in the microcomputer 10 control.

Unexplained symbols A2 and A3 are amplification units.

Referring to the operation and effects of the present invention configured as described above are as follows.

First, the present invention is related to the normal water purifier operation, that is, the automatic driving device, the pump, the solenoid valve driving unit, the stage sensor, the water level sensor, the over sensor, the temperature sensor and the like are operated by the control of the microcomputer 10, The same operation state is displayed on the display unit 50, so that the user can easily check the operation state of the water purifier.

In this way, when a call signal is generated from the trunk lines T, R, that is, the buzzer 41 while the water-related operation is displayed on the display unit 50, the indoor resident recognizes the trunk lines T, R, and bridget. The signal passing through the circuit unit 42 and the hook switch 44 is transmitted to the microcomputer 10 through the detecting unit 43, and the microcomputer 10 recognizes the operating state of the telephone circuit 40 to recognize the changeover switch 70. The terminal bc is connected to the telephone speaker SP and at the same time, the switching unit 45 is operated by the detection unit 43 to form a normal channel loop.

And, according to this, the indoor resident can make a call with the outside via the trunk line T, R, the bridge circuit 42, the hook switch 44, and the speakerphone SP as the microphone M2 and the speaker SP. . After that, when the call is terminated, the signal passing through the hook switch 44 is naturally not transmitted to the microcomputer 10 through the detection unit 43, and the microcomputer 10 disconnects the call loop by cracking down the switching unit 45. do.

On the other hand, when pressing the operation power key provided in the key input unit 60 to listen to the radio character broadcast, the microcomputer 10 connects the changeover switch 70 to the terminal (ac) to connect to the speaker for the radio (SP) At the same time, the water purifier related operation display state is removed from the display unit 50 so as to wait for the radio character display state.

In this state, that is, the front end 31 converts a frequency received through an antenna ANT which draws a radio wave composed of an electromagnetic field and converts it into an electric signal, and the width of the broadcast sideband of the reception frequency is used as a filter of a general LC tuning circuit. Appropriately, the intermediate frequency amplifying unit A1 generates a flat passable frequency, and the AM / FM detector 32 discriminates and amplifies a frequency signal suitable for detecting the amplified signal from the intermediate frequency amplifying unit A1. And an amplifying unit A2 and an audio signal through a stereo demodulator 33 for separating the output discriminated from the AM / FM detector 32, that is, a composite signal into left and right signals in synchronization with a pilot signal. While amplifying at A3 is output to the speaker SP, the character display is error detection, correction and synchronization of the error correction unit 36 by controlling the microcomputer 10 in the composite signal loaded on the stereo demodulator 33. Door by That it is possible to listen to radio broadcast by character to be received to the display a signal obtained through a series of processes subjected to the character broadcast modulator 35 and the error correction unit 36, a display section 50.

Here, when the telephone reception is made while listening to the above-mentioned radio text broadcasting, the speaker SP is connected to the telephone circuit 40 to block the audio signal of the lion text broadcasting, but the text display is continuously displayed on the display 50. It is preferable.

As described above, the present invention has a feature of using a general telephone function and a radio text broadcasting at the same time in addition to the use of a normal water purifier, and has various effects such as further improving the reliability of a product for adding a function.

The above examples are merely one embodiment of the present invention, and can be changed as many as possible within the scope of the present invention.

Claims (2)

In the water purifier circuit 20 which the user can drink as drinking water through a well-known water purification process, each related operation of the water purifier circuit 20 is displayed on the display unit 50 and the general telephone circuit 40 is controlled. And a microcomputer 10 for overall control of the radio character broadcasting circuit 30; Front end 31, intermediate frequency amplifier A1, AM / FM detector 32, stereo demodulator 33, character broadcast modulator 35, error correction for converting the frequency received through the antenna ANT A radio character broadcasting circuit 30 for outputting audio signals and characters obtained through a series of processes of the government unit 36 through the display unit 50 and the speaker SP under the control of the microcomputer 10; Buzzer part 41 for detecting the call signal applied from the trunk line (T, R), bridge circuit portion 42 connected to the trunk line (T, R) to form a call loop, hook switch 44 when forming a call Detection unit 43 activated as a signal and input to the microcomputer 10, Switching unit 45, the microphone (M2), and the speaker (SP) to control the call path by the detection unit 43 after the call is terminated Water purifier circuit capable of receiving a telephone call and radio character broadcast, characterized in that consisting of a telephone circuit 40 consisting of a speakerphone 46 connected to. The telephone call according to claim 1, further comprising a switching switch (70) for selectively connecting the audio signals of the general telephone circuit (40) and the radio character broadcasting circuit (30) by the control of the microcomputer (10). And a water purifier circuit capable of receiving a radio character broadcast.