CN1233144A - Concentrated household appliance controlling system - Google Patents
Concentrated household appliance controlling system Download PDFInfo
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- CN1233144A CN1233144A CN 98110796 CN98110796A CN1233144A CN 1233144 A CN1233144 A CN 1233144A CN 98110796 CN98110796 CN 98110796 CN 98110796 A CN98110796 A CN 98110796A CN 1233144 A CN1233144 A CN 1233144A
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Abstract
The contolling system is connected to the lead-in power line and includes the transmission medium for electric power and control signal, central controlling computer to indoor power network and intelligent household appliances connected to the indoor power network. The household appliances may be placed in anywhere is power socket, and this can solve the problem of needing rearranging power wire while using the additional controlled wire as transmission medium and thus reduce system cost.
Description
The present invention relates to a kind of household electrical appliance centralized control system.
Present household electrical appliance all adopt respectively the method for control basically, and have nothing in common with each other such as the control circuit of television set, washing machine, air-conditioning: television set adopts remote controller; Washing machine adopts Programmable Logic Controller; Air-conditioning may adopt single-chip microcomputer.In the middle of development process, the developer must adopt special-purpose programming language that has nothing in common with each other or hardware circuit, and the construction cycle is long, the misarrangement difficulty, and the product up-gradation exploitation is difficult, cost is high.Prepare to adopt the powerful disposal ability of computer to come household electrical appliances are unified control at present in the world, yet up to the present, all schemes all must adopt control line to insert each household electrical appliances, and for example the IEEE1394 bus system of Intel Company has adopted 6 cable interfaces to insert.So just caused the cost of control line quite big, and the time marquis who moves the orientation whenever household electrical appliance, when buying new household electrical appliance, all need the change wiring.And must just carry out layout of roads at first stage of construction, flexibility, bad adaptability have caused the household electrical appliance centralized control to be difficult to popularize.
The object of the present invention is to provide does not a kind ofly need that in addition wiring just can be carried out the information transmission and can carry out the household electrical appliance centralized control system that interference-free carries out the information transmission.
The object of the present invention is achieved like this, a kind of household electrical appliance centralized control system, it is connected in the house lead in power line, it is characterized in that, it comprises: transmission medium, be used for the transmission of power and signal, it comprises that being used for of linking to each other with the house lead in power line isolates high frequency voltage in case isolating device that the stop signal transmission is disturbed and the indoor power system spider lines that links to each other with isolating device; Central authorities' controlling computer, link to each other with the indoor power system spider lines in the transmission medium, it comprises the transceiving device that coding and decoding parts that the central computer that is used to control several intelligent domestic electrical equipment, the interface unit that is used for control command output and state information input that links to each other with central computer, being used to of linking to each other with interface unit realize communication process major control function and being used for of linking to each other with the coding and decoding parts receive and dispatch signal on the power-line network indoors; Several intelligent domestic electrical equipment, link to each other with indoor power system spider lines in the transmission medium respectively, each intelligent domestic electrical equipment comprises intelligent domestic electrical equipment execution unit, being used to of linking to each other with intelligent domestic electrical equipment execution unit finished the interface unit that concrete control information execution and state receive, the coding and decoding parts that are used to realize communication process major control function that link to each other with interface unit, and being used for of linking to each other with the coding and decoding parts transceiving device that signal is is indoors received and dispatched on the power-line network.
Owing to adopted above-mentioned technical solution, as transmission medium, signal can transmit and avoid the influence of supply voltage with power line.Because power line only adopts low frequency 50-60Hz alternating current at present, its frequency spectrum resource is still very abundant.As long as modulate the signal to other suitable frequency ranges, receiving terminal just can be isolated modulation signal from power line, thereby carries out the signal transmission.Because each intelligent domestic electrical equipment all inserts same power line by attaching plug, so as long as the place of attaching plug is arranged, the conversion of household electrical appliance position is all unrestricted, and the control line that must not add, having solved when adopting additional control line as transmission medium needs the difficulty of rewiring, thereby greatly reduces system cost.Owing to isolate when the each household power supply inserts, the control signal of neighboring user can't the phase mutual interference.More because the powerful information processing capability that central computer had, be able to carry out very fine control at household electrical appliance, it substantially exceeds the control ability of household electrical appliance itself, and new control device such as voice control, Long-distance Control etc. need only be upgraded to computer software and just can be realized.
The present invention is further illustrated below in conjunction with accompanying drawing.
Fig. 1 is a household electrical appliance centralized control system structured flowchart of the present invention.
By shown in Figure 1, household electrical appliance centralized control system of the present invention is connected in the house lead in power line, and it comprises transmission medium, central controlling computer and intelligent domestic electrical equipment.
Transmission medium is used for the transmission of power and signal, in general, also is isolated from the outside easily in order to obtain high signal transfer rate, and the signal transmission will be adopted higher frequency range.It comprises that being used for of linking to each other with the house lead in power line isolates high frequency voltage in case isolating device that the stop signal transmission is disturbed and the indoor power system spider lines that links to each other with isolating device.When adopting high band to carry out communication, isolating device is typical low pass filter, can adopt passive low ventilating filter, and requirement can again can be to the reliable filtering of high-frequency signal by bigger low frequency power.Such as the single order or the high-order lowpass that adopt inductance capacitance to constitute, the magnetic core of its inductance coil must be selected for use under big electric current and saturated magnetic core not occur.Isolating device is positioned at before central controlling computer and the intelligent domestic electrical equipment, can not reveal to guarantee transmission signals, avoids the interference of extraneous signal simultaneously.
Central authorities' controlling computer, link to each other with the indoor power system spider lines in the transmission medium, it comprises the transceiving device that coding and decoding parts that the central computer that is used to control several intelligent domestic electrical equipment, the interface unit that is used for control command output and state information input that links to each other with central computer, being used to of linking to each other with interface unit realize communication process major control function and being used for of linking to each other with the coding and decoding parts receive and dispatch signal on the power-line network indoors.For reliably, central computer can adopt the higher gears type, as industrial computer, server, high-grade personal-machine etc.Operating system can be selected highly reliable operating system (preferably multitask system) as required for use, recommends to use windows NT, UNIX etc.
Several intelligent domestic electrical equipment, link to each other with indoor power system spider lines in the transmission medium respectively, each intelligent domestic electrical equipment comprises intelligent domestic electrical equipment execution unit (as air-conditioning, refrigerator, microwave oven, washing machine etc.), being used to of linking to each other with intelligent domestic electrical equipment execution unit finished the interface unit that concrete control information execution and state receive, the coding and decoding parts that are used to realize communication process major control function that link to each other with interface unit, and being used for of linking to each other with the coding and decoding parts transceiving device that signal is is indoors received and dispatched on the power-line network.All intelligent domestic electrical equipment all can insert same power line by attaching plug, thereby all accept central controlling computer monitoring.Any one plug can both receive the control signal of central controlling computer among the intelligent domestic electrical equipment insertion system, and central controlling computer is inserted any one plug can both control whole system.
Transceiving device in central authorities' controlling computer and the intelligent domestic electrical equipment, major function is that signal is is indoors received and dispatched on the power-line network, major requirement is to isolate power-frequency voltage, not the transmission of interference signal.Insert power line such as can adopt coupling and transformer to connect with high-voltage capacitance, power-frequency voltage is by high-voltage capacitance elimination major part, and the voltage that enters on coupling and the transformer just can not produce too big interference, yet unlikely damage internal circuit to signal.Signal then can enter power-line network by coupling and transformer after being modulated to high frequency, and high-voltage capacitance is then less to the decay of signal.
Coding and decoding parts in central authorities' controlling computer and the intelligent domestic electrical equipment, major function are the major control functions that realizes communication process.For example, by selecting for use suitable communications protocol, encoding scheme to improve the speed and the reliability of communication.Such as can adopt half-duplex at this, reply entirely, character-oriented serial communication protocol; Select the frequency range that helps reducing cost, improving anti-interference for use; Select error correcting capability high Hamming code row or CRC check sign indicating number for use; Formulate the form of transmission signals according to the need and possibility, comprise synchronously, harbour, information, sign indicating number tail etc.This part can select software and hardware as the case may be, can adopt single-chip microcomputer or application-specific integrated circuit (ASIC) to realize.
Interface unit in central authorities' controlling computer and the intelligent domestic electrical equipment is mainly finished the execution of concrete control information.The instruction that computer will be sent such as computer interface is finished the serial parallel conversion and is transmitted to the coding and decoding parts, the information of each household electrical appliances that the coding and decoding parts are sent back to notice computer can be selected interface and realization chips such as RS232, EPP, USB, IEEE1394, ISA, PCI as required for use simultaneously.Appliance interface is mainly finished the order that computer that the coding and decoding parts are sent here sends and is submitted to the unit of respectively executing the task to carry out, and the encoded modulation of their state is sent it back central computer, and its realization is different with the situation of concrete household electrical appliances.
Claims (1)
1. household electrical appliance centralized control system, it is connected in the house lead in power line, it is characterized in that, and it comprises:
Transmission medium is used for the transmission of power and signal, and it comprises that being used for of linking to each other with the house lead in power line isolates high frequency voltage in case isolating device that the stop signal transmission is disturbed and the indoor power system spider lines that links to each other with isolating device;
Central authorities' controlling computer, link to each other with the indoor power system spider lines in the transmission medium, it comprises the transceiving device that coding and decoding parts that the central computer that is used to control several intelligent domestic electrical equipment, the interface unit that is used for control command output and state information input that links to each other with central computer, being used to of linking to each other with interface unit realize communication process major control function and being used for of linking to each other with the coding and decoding parts receive and dispatch signal on the power-line network indoors;
Several intelligent domestic electrical equipment, link to each other with indoor power system spider lines in the transmission medium respectively, each intelligent domestic electrical equipment comprises intelligent domestic electrical equipment execution unit, being used to of linking to each other with intelligent domestic electrical equipment execution unit finished the interface unit that concrete control information execution and state receive, the coding and decoding parts that are used to realize communication process major control function that link to each other with interface unit, and being used for of linking to each other with the coding and decoding parts transceiving device that signal is is indoors received and dispatched on the power-line network.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 98110796 CN1233144A (en) | 1998-04-23 | 1998-04-23 | Concentrated household appliance controlling system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 98110796 CN1233144A (en) | 1998-04-23 | 1998-04-23 | Concentrated household appliance controlling system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1233144A true CN1233144A (en) | 1999-10-27 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 98110796 Pending CN1233144A (en) | 1998-04-23 | 1998-04-23 | Concentrated household appliance controlling system |
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| CN (1) | CN1233144A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1328631C (en) * | 2001-05-30 | 2007-07-25 | Lg电子株式会社 | Network control system for home appliances |
| CN101536535B (en) * | 2006-01-27 | 2012-07-18 | Lg电子株式会社 | Remote controlling device |
-
1998
- 1998-04-23 CN CN 98110796 patent/CN1233144A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1328631C (en) * | 2001-05-30 | 2007-07-25 | Lg电子株式会社 | Network control system for home appliances |
| CN101536535B (en) * | 2006-01-27 | 2012-07-18 | Lg电子株式会社 | Remote controlling device |
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