WO1995024758A1

WO1995024758A1 - A switching system

Info

Publication number: WO1995024758A1
Application number: PCT/KR1994/000143
Authority: WO
Inventors: Hyung Sik Park
Original assignee: Hyung Sik Park
Priority date: 1994-03-11
Filing date: 1994-10-20
Publication date: 1995-09-14
Also published as: AU8004994A

Abstract

The present invention relates to a switching system in which users can optionally turn on/off any load among a plurality of loads in each of different places. The switching system can switch a power supply being supplied to loads by manipulating either a manual switch or a remote control switch, control the power supply to loads, which are set up in a plurality of chambers blocked off from each other, with one remote controller in each of different chambers, and recognize a control state of loads of each chamber in other chambers. In addition, the system includes a preventive device so that loads of the other chamber cannot be controlled in another chambers. Accordingly, the present invention provides the switching system which can easily control loads installed in a plurality of chambers blocked off from each other.

Description

A SWITCHING SYSTEM

TECHNICAL FIELD

The present invention relates to a switching system capable of electronically and mechanically executing a switching operation, in which users can optionally turn on/off any load among a plurality of loads in different places from each other.

BACKGROUND ART

Generally, there has been used a manual switch or a remote control switch using a remote controller in switching of a power supply. However, conventional switching systems have drawbacks that users always operate the manual switches in their original places and carry with a remote controller for a remote control switching.

DISCLOSURE OF THE INVENTION

Therefore, to solve the above problems, it is an object of the present invention to provide a switching system which can switch optionally a power supply of loads set up in the other chamber in respective chambers blocked off from each other as well as perform a switching operation by handling any one of a manual switch and a remote control switch.

Another object of the present invention is to provide a switching system which can warn against a state of emergency between separated places.

To accomplish the above objects of the present invention, there is provided a switching system for switching power being supplied to a plurality of loads, the system comprising: electronic switching means, provided with at least two or more switch sets, each of which is composed of switches capable of controlling the loads respectively; load controlling units, including a plurahty of load controllers that are electrically connected to each of the switch sets, in which each of load controllers is operated according to a control signal from an optional switch set of the electronic switch means; and means for supplying the power to a desired load or for cutting off it according to an output signal from the load controlling unit.

BRIEF DESCRIPTION OF DRAWINGS

FIGs. 1A to 1C are circuit diagrams of a switching system in accordance with one embodiment of the present invention; FIGs. 2A to 2C are circuit diagrams of a switching system in accordance with other embodiment of the present invention; and

FIGs. 3A and 3B are circuit diagrams of a switching system in accordance with another embodiment of the present invention.

FIG. 4 is a circuit diagram of a switching system in accordance with further another embodiment of the present invention.

BEST MODE FOR CARRYING OUT THE INVENTION

The embodiment of the present invention will be described below with reference to the accompanying drawings.

FIG. 1 illustrate a switching system in accordance with one embodiment of the present invention. The switching system of this embodiment is made up of controlling each load in different positions, in the case that a plurahty of loads are separately installed in at least two or more places blocked off from each other. This embodiment shows that five loads can be controlled in each place separated from others, respectively. The switching system in accordance with the present invention comprises electronic switching means 100, which are composed of plurality of switch sets. Each of switch sets is separately arranged in isolated places, including remote controllers and/or contact switches. Since each of switch sets is in the same construction, a first set will be only described hereinafter. However, a fourth set in the drawing has no a remote controller, and a fifth set can control only any one predetermined load without a remote controller. The first switch set comprises a remote controller switch that is provided with a remote controller 20A and receiving means 30A for converting a corresponding signal from the remote controller 20A into an electric signal, and switches 31A--35A which are as many as five loads connected between a power supply part and output terminals of the receiving means 30A. Here, the remote controller 20A can employ an integrated circuit such as TC9148P, and the recei/ing means 30 A can use an integrated circuit such as TC9149P or TC9150P.

Load controlling units 200 are separately connected to the output terminals of each switch set, only the first unit of which will be described due to the same construction. An output terminal of the first switch set is coupled to a signal transmitter 60 via a matrix 50 by insertion of a DIP switch 40. An output signal of the signal transmitter 60 is supplied to a signal decoder 71 which decodes the transmitted control signal, the decoded signal is provided to a driving signal generator 73 which generates a driving signal to control a corresponding load through matrix 72, and then the driving signal generator 73 controls each load according to the transmitted control signal. To output terminals of the driving signal generator 73, transistors TRi—TRs as many as five loads are coupled in series with photo- couplers 41-—45. Here, the signal decoder 71, matrix 72, driving signal generator 73 can employ integrated circuits such as KT3170, CD4028 and HD4027, respetively. Of course, those of ordinary skill in the art can easily understand the fact that only one integrated circuit for the construction of the present invention can be applied. On the other hand, a plurahty of light emission diodes LED which display a control state of each load are provided to output terminals of the driving signal generator 73. Also, it is that the DIP switch 74 for manual control is provided to the output terminal of the driving signal generator 73. In addition, a load selector 80, composed of a plurality of switches 81~85, is located between each of transistors TRι~TRs and photo -couplers 41~45. When one of switches of the load selector 80 is turned on, a desired load can be connected to a corresponding set. Accordingly, if the first switch 81 of the load selector 80 is in an "on" state and a control signal is supplied in order to make a first load Li "on", a first transistor TRi is turned on and a first photo-coupler 41 is operated, thereby supplying the power to the first load Li.

On the other hand, in the switching system in accordance with the present invention, alternating current power is connected to a first load Li through a first triac Si as switching means. Also, second to fifth loads L₂~ L5 are respectively arranged in parallel through second to fifth triacs S2--S5. Switches MS1-—MS5 are located between each of triacs as electronic switching means and loads, and have functions of controlling loads electronically and mechanically. When a first contactor Mi contacts with a first node (a), the load is electronically controlled. When the first contactor Mi contacts with a second node (b), the load is mechanically controlled. In a state that the first contactor Mi contacts with the second node (b), that is, in a manual control state, the second contactor M₂ plays a role of turning on/off loads.

A full- wave rectifier circuit BD that converts alternating current into direct current is provided to an alternating current input terminal. A voltage stabilizer 10 coupled to an output terminal of the full- wave rsectifier circuit BD provides power supply to the system of the present invention. It can be easily understood that direct current instead of alternating current is used to accomplish techniques of the present invention.

Fι~Fδ not described represent fuses, which are installed in every loads and prevent damages due to the overload.

The operation of the switching system in accordance with one embodiment of the present invention will be described below. First, if the remote controller 20A generates an infrared ray signal for supplying the power to the first load, the signal receiver 30A receives the infrared ray signal supplied from the remote controller 20 A, converts it to an electric signal and outputs the converted signal through a first output terminal. The output signal is matched through the matrix 50, and is modulated into a transmission signal in the signal transmitter 60. The output signal of the signal transmitter 60 is supplied to the signal decoder 71, which decodes the transmitted control signal and provides the decoded signal to the driving signal generator 73 which generates a driving signal to control the corresponding load through the matrix 72. The driving signal generator 73 drives the corresponding LED and makes it to display a load in an operating state, and at the same time turns the first transistor TRi 'on¹. Accordingly, driving of the first photo -coupler 41 makes the first triac Si 'on' and thereby the power is supplied to the first load Li. Then, only the first switch 81 of the load selector 80 is in an On' state. This embodiment selects a signal transmission method by coding, but methods by voltage difference or digital signals may be preferred. To understand the subject embodiment, a circuit which includes the first remote controller 20 A, first receiver 30 A and first push button switches 31A—35A, is disposed in a first chamber. A circuit which includes the second remote controller 20B, second receiver 30B and second push button switches 31B~35B, is disposed in a second chamber blocked off from the first chamber. A circuit which includes the third remote controller 20C, third reciver 30C and third push button switches 31C~35C, is disposed in a third chamber. Such a construction provides to easily understand the fact that the second remote controller 20B installed in the second chamber can control the first load Li in the first chamber. FIGs. 2A to 2C are circuit diagrams of a switching system in accordance with other embodiment of the present invention. When compared with the embodiment of FIG. 1, this embodiment is identical to that of FIG.l with the exception that each of loads is controlled through the driving signal generator 73 in the first chamber. The components which perform the same functions as in FIG. 1 are designated with the same reference numerals. Therefore, if it is understood that a corresponding signal is equally supplied to the load controlling units 200 connected with each switch set, even though one switch set of the electronic switching means 100 which is installed in any one chamber is manipulated, those of ordinary skill in the art can fully understand without further description concerning the construction and operation of the subject embodiment.

FIGs. 3A and 3B are circuit diagrams of a switching system in accordance with another embodiment of the present invention. This embodiment provides a switching system which can warn against a state of emergency between isolated places. When compared with the embodiment of FIG. 1, this embodiment is equal to that of FIG.l with the exception that the load selectors 80 included in the load controlling units 200 are removed, and each load controlling unit 200 is electrically connected to a corresponding photo -coupler as a collector of each of the transistors is coupled, and that means for warning, for example, a speaker is further provided.

Therefore, if a control signal is supplied from any switch set installed in isolated places, all the loads are simultaneously operated and then the load controlling units 200 display a corresponding position through LED. Accordingly, a warning against the place where a state of emergency occurs is given.

FIG. 4 is a circuit diagram of a switching system in accordance with further another embodiment of the present invention. Particularly, the device of FIG. 4 shows a circuit on one set mentioned in FIG. 1.

The device of FIG. 4 is composed of microchips employed by an integrated circuit of KS57C5016 or KS57C2408, so as to materialize another embodiment. A remote receiver 42 receives a control signal which is transmitted in an infrared form from the remote controller (not shown) and supplies the siganl to the microcomputer 41. In the case that a proper number for each of loads may be designaged, used is a number setting unit 43 employing an integrated circuit of KM93C46. Receiving and transmitting units 44, employed by an integrated circuit of 74HC07, receives and transmits signals between other sets. Driving controllers 45 and 45', which may employ integrated circuits of KA2651 and KA2657 respectively, drive a LED display 46 for displaying the operation of a certain load in responsive to an output signal of the microcomputer 41. On the other hand, a load controller 47 controls the power supply for a co; esponding load, in responsive to an output signal of the microcomputer 41. In addition, the device of FIG. 4 further comprises a button-typed switch 48 and a confirmatory unit 49.

When the present invention comes into force, it is obvious in the art that a sensor for sensing human body and heat is arranged in parallel to the electronic switching means, or a timer for ringing only during a certain time, the transmission, recording and telerecording of image and sound, auto -connection to home, a transmitting device by wireless/wire and an alarm for disconnection are further added.

INDUSTRIAL APPLICABILITY

As described above, a switching system in accordance with the present invention can control a desired load in user's convenient place, perform a mutual switching operation by both a manual switch and a remote controller, display states of each load and selectively stop the operation of an unused switching circuit. Therefore, the switching system provides convenience of user's switching operation as well as power- saving efficiency. As a result, the switching system can optionally control, in each of chambers, loads which are set up in a plurality of chambers blocked off from each other, recognize the control state of loads of each chamber in other chambers, and additionally have good effects that provide preventive means for preventing the control of a predetermined load to any chamber, if necessary, and means for warning the place where a state of emergency occurs.

Claims

WHAT IS CLAIMED IS:

1. A switching system for switching power being supplied to a plurality of loads, the system comprising: electronic switching means, provided with at least two or more switch sets, each of which is composed of switches capable of controlling the loads respectively; load controlling units, including a plurality of load controllers that are electrically connected to each of said switch sets, in which eahc of load controllers is operated according to a control signal from an optional switch set of said electronic switch means; and means for supplying the power to a desired load or for stopping it according to an output signal from said load controlling unit.

2. The switching system as claimed in claim 1, wherein said each load controller further comprises a display unit for displaying a control state of each of said loads.

3. The switching system as claimed in claim 1 or 2, wherein said each load controller further comprises a signal transmitter for coding the control signal supplied from said switch sets and transmitting the coded signal; a signal decoder for decoding the transmitted control signal from said signal transmitter; a driving signal generator, composed of a plurality of output terminals at least as many as loads, for outputting the output signal from said signal decoder into a signal of a binary form through a corresponding output terminal; and switching elements, located between each output terminal of said driving signal generator and supply /cut- off means of a power supply.

4. The switching system as claimed in claim 3, wherein said load controller further comprises a load selector for electrically selecting switching operations so that only a desired control signal supplied from said electronic switch means can control a corresponding load.

5. The switching system as claimed in claim 1 or 2, further comprising selection means, coupled between each load and supply/cut-off means of power supply, for selecting electronically or mechanically a load control

6. The switching system as claimed in claim 1, wherein said switch sets are formed between the power supply part and said load controlling units in a push-button fashion.

7. The switching system as claimed in claim 6, wherein said switch sets further comprises remote controllers.