CN103312376A - Communication system based on power line and visible light - Google Patents
Communication system based on power line and visible light Download PDFInfo
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- CN103312376A CN103312376A CN2012100680773A CN201210068077A CN103312376A CN 103312376 A CN103312376 A CN 103312376A CN 2012100680773 A CN2012100680773 A CN 2012100680773A CN 201210068077 A CN201210068077 A CN 201210068077A CN 103312376 A CN103312376 A CN 103312376A
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Abstract
The embodiment of the invention belongs to the technical field of communication and discloses a communication system based on a power line and a visible light. The communication system comprises a first power modulation and demodulation device, a microprocessor and a transmission unit, wherein the first power modulation and demodulation device is used for demodulating a received signal; the microprocessor is connected with the output end of the first modulation and demodulation device and is used for coding the demodulated signal; the transmission unit is connected with the output end of the microprocessor and is used for transmitting the signal coded by the microprocessor through the visible light. The communication system disclosed by the invention can combine power line communication with visible light communication and improves the user experience.
Description
Technical field
The present invention relates to the optical communication technique field, be specifically related to a kind of communication system based on power line and visible light.
Background technology
During power line communication (Power Line Communication, be called for short PLC) technology refers to utilize, low-voltage power line is as communication media, realizes the communication technology of Integrated Services Transmission such as data, voice and image.This technology is that the high-frequency signal of carrying information is coupled on the power line, uses power line transmission then, and the modulator-demodulator that receives information is separated high-frequency signal again from power line, and is sent to computer or phone, transmits with realization information.The advantage of this technology is not need rewiring to realize that at existing electric wire multiple services carrying such as data-voice and video realizes four networks one platform, and terminal use's socket plug that only need plug in just can realize that internet access television channel program receiving makes a phone call or video telephone.
The wireless light communication technology claims the visible light communication again, and its high-frequency by led light source glimmers to communicate, and has light to represent 1, unglazed representative 0, and its transmission rate is up to gigabit on the per second.Wireless light communication carries out transfer of data by visible light, compares with microwave technology, and quite abundant frequency spectrum resource is arranged, and is that general microwave communication and radio communication are incomparable; Visible light communication can be suitable for any communication protocol, be applicable to any environment simultaneously; Aspect fail safe, needn't worry that Content of Communication stolen by the people; The equipment of wireless light communication is convenient flexibly, and cost is very low, is fit to extensive popularization and application.But, the technology that also power line communication is not combined with visible light communication in the prior art.
Summary of the invention
Embodiment of the present invention technical problem to be solved is, a kind of communication system based on power line and visible light is provided, and power line communication can be combined with visible light communication, improves the user and experiences.
In order to solve the problems of the technologies described above, embodiment of the present invention provides a kind of communication system based on power line and visible light, comprises first electric power modem that carries out demodulation for to the signal that receives; Be connected with the output of first electric power modem, be used for the microprocessor that the signal after the demodulation is encoded; Be connected with the output of described microprocessor, be used for sending by visible light the transmitting element of the signal after described microprocessor is encoded.
Optionally, described communication system also comprises the drive circuit that is connected between microprocessor and the transmitting element, is used for the electric current of described microprocessor output is increased to the operating current of described transmitting element, sends visible light signal to drive described transmitting element.
Optionally, described communication system also comprises the verification operator unit that is connected with microprocessor, is used for the signal behind the coding is carried out the verification computing.
Optionally, described communication system also comprises second electric power modem that is connected with described first electric power modem by power line, is used for broadcast singal is modulated to described power line.
Optionally, described communication system also comprises the supply socket that is connected with described first electric power modem.
Optionally, described communication system also comprises the button that is connected with described supply socket, is used for the shutoff according to the triggering signal control supply socket electric current that receives.
Optionally, be connected by power line between described first electric power modem and the described supply socket.
Optionally, be connected by netting twine between described first electric power modem and the described microprocessor.
Optionally, described transmitting element is the LED lamp.
Optionally, described LED lamp is illuminating lamp.
In the communication system provided by the invention, one end of electric power modem is connected with power line, the other end is connected with microprocessor, electric power modem carries out demodulation to the signal of telecommunication that receives from power line and obtains light signal, with the electric power modem microprocessor linked light signal is encoded, by the transmitting element that can send visible light light signal is sent then.Thereby realize that power line communication combines with visible light communication, improve the user and experience.
Description of drawings
In order to be illustrated more clearly in embodiment of the present invention or technical scheme of the prior art, to do to introduce simply to the accompanying drawing of required use in execution mode or the description of the Prior Art below, apparently, accompanying drawing in describing below only is some embodiments of the present invention, for those of ordinary skills, under the prerequisite of not paying creative work, can also obtain other accompanying drawing according to these accompanying drawings.
Fig. 1 is the communication system schematic diagram based on power line and visible light that first embodiment of the invention provides;
Fig. 2 is the communication system schematic diagram based on power line and visible light that second embodiment of the invention provides;
Fig. 3 is the communication system schematic diagram based on power line and visible light that third embodiment of the invention provides;
Fig. 4 is the communication system schematic diagram based on power line and visible light that four embodiment of the invention provides.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is clearly and completely described, obviously, described execution mode only is the present invention's part execution mode, rather than whole execution modes.Based on the execution mode among the present invention, those of ordinary skills belong to the scope of protection of the invention not making the every other execution mode that obtains under the creative work prerequisite.
Referring to Fig. 1, it is the communication system schematic diagram based on power line and visible light that first embodiment of the invention provides.This communication system comprises first electric power modem 11; Output microprocessor linked 12 with first electric power modem 11; The transmitting element 13 that is connected with the output of microprocessor 12.
First electric power modem 11, input is connected with the power line of the information of carrying, and output is connected with microprocessor 12, is used for the signal that receives from power line is carried out demodulation, is about to the signal of telecommunication and converts light signal to, and optical signal transmission is arrived microprocessor 12.For example, the signal of telecommunication that 11 pairs of first electric power modems carry broadcast message carries out demodulation, obtains carrying the light signal of broadcast message.
Pass through netting twine (for example twisted-pair cable) microprocessor linked 12 with the output of first electric power modem 11, be used for the signal after 11 demodulation of first electric power modem is encoded, and the signal after will encoding sends to transmitting element 13.Concrete, microprocessor 12 is converted to binary data with the signal that obtains, and according to the Manchester's code mode binary data is converted to the lower edge triggering signal again.In a time cycle, binary data " 1 " is converted to the trailing edge triggering signal, " 0 " is converted to the rising edge triggering signal; Perhaps binary data " 1 " is converted to the rising edge triggering signal, " 0 " is converted to the trailing edge triggering signal.
The transmitting element 13 that is connected with the output of microprocessor 12 is used for sending behind microprocessor 12 codings by visible light signal.This transmitting element 13 can be light-emitting diode or illuminating lamp, and is luminous when receiving the trailing edge triggering signal, not luminous when receiving the rising edge triggering signal; Not luminous when perhaps receiving the trailing edge triggering signal, luminous when receiving the rising edge triggering signal.
In the present embodiment, the input of first electric power modem 11 is connected with power line, output is connected with microprocessor 12,11 pairs of signals of telecommunication that receive from power line of electric power modem carry out demodulation and obtain light signal, with the electric power modem microprocessor linked light signal is encoded, by the transmitting element that can send visible light light signal is sent then.Thereby realize that power line communication combines with visible light communication, improve the user and experience.
Referring to Fig. 2, it is the communication system schematic diagram based on power line and visible light that second embodiment of the invention provides, this execution mode is on the basis of first electric power modem 11, microprocessor 12 and transmitting element 13, also comprise the drive circuit 21 that is connected between microprocessor 12 and the transmitting element 13, be used for the electric current of microprocessor 21 outputs is increased to the operating current of transmitting element 13, drive transmitting element 13 according to the last lower edge triggering signal behind microprocessor 12 codings and send visible light signal.In the present embodiment, it is luminous to drive transmitting element 12 when drive circuit 21 receives the trailing edge triggering signal.
In the present embodiment, owing to increased drive circuit 21, thus guaranteed the operating current of transmitting element 13.Make the transmission visible light signal that transmitting element 13 can be stable.
Referring to Fig. 3, it is the communication system schematic diagram based on power line and visible light that third embodiment of the invention provides.With respect to second execution mode, on the basis of first electric power modem 11, microprocessor 12, transmitting element 13 and drive circuit 21, also comprise the verification operator unit 31 that is connected with microprocessor 12, be used for the signal behind microprocessor 12 codings is carried out the verification computing.
In the present embodiment, owing to increased verification operator unit 31.Thereby further guarantee to guarantee the reliability of signal transmission.
Referring to Fig. 4, it is the communication system schematic diagram based on power line and visible light that four embodiment of the invention provides.With respect to the 3rd execution mode, on the basis of first electric power modem 11, microprocessor 12, transmitting element 13, drive circuit 21 and verification operator unit 31, also comprise supply socket 41, the output of this supply socket 41 is connected with the input of first electric power modem 11, and the input of this supply socket 41 is connected by the output of cable with second electric power modem 42.
Second electric power modem 42 is used for broadcast singal is modulated to power line.For example, when the needs urgent broadcast, broadcast message is modulated to power line by second electric power modem 42, transfers signals to entire building by power line.Because each floor is provided with supply socket, first electric power modem 11 receives by supply socket and carries the signal of telecommunication of broadcast message.
In concrete implementation process, can further include the button 43 that is connected with described supply socket 41, be used for turn-offing according to the electric current of the triggering signal control supply socket 41 that receives.Concrete, when button 43 was pressed, supply socket 41 and first electric power modem 11 and second electric power modem 42 were realized conducting.
Above disclosed is a kind of preferred embodiments of the present invention only, can not limit the present invention's interest field certainly with this, and therefore the equivalent variations of doing according to claim of the present invention still belongs to the scope that the present invention is contained.
Claims (10)
1. the communication system based on power line and visible light is characterized in that, comprises first electric power modem that carries out demodulation for to the signal that receives; Be connected with the output of first electric power modem, be used for the microprocessor that the signal after the demodulation is encoded; Be connected with the output of described microprocessor, be used for sending by visible light the transmitting element of the signal after described microprocessor is encoded.
2. communication system according to claim 1, it is characterized in that, described communication system also comprises the drive circuit that is connected between microprocessor and the transmitting element, be used for the electric current of described microprocessor output is increased to the operating current of described transmitting element, send visible light signal to drive described transmitting element.
3. communication system according to claim 1 is characterized in that, described communication system also comprises the verification operator unit that is connected with microprocessor, is used for the signal behind the coding is carried out the verification computing.
4. communication system according to claim 1 is characterized in that, described communication system also comprises second electric power modem that is connected with described first electric power modem by power line, is used for broadcast singal is modulated to described power line.
5. communication system according to claim 4 is characterized in that, is connected with supply socket between described first electric power modem and described second electric power modem.
6. communication system according to claim 5 is characterized in that, described communication system also comprises the button that is connected with described supply socket, is used for the shutoff according to the triggering signal control supply socket electric current that receives.
7. communication system according to claim 4 is characterized in that, is connected by power line between described first electric power modem and the described supply socket.
8. communication system according to claim 1 is characterized in that, is connected by netting twine between described first electric power modem and the described microprocessor.
9. communication system according to claim 1 is characterized in that, described transmitting element is the LED lamp.
10. communication system according to claim 8 is characterized in that, described LED lamp is illuminating lamp.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201210068077.3A CN103312376B (en) | 2012-03-15 | 2012-03-15 | Communication system based on power line and visible ray |
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| CN201210068077.3A CN103312376B (en) | 2012-03-15 | 2012-03-15 | Communication system based on power line and visible ray |
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| CN103312376B CN103312376B (en) | 2017-08-25 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109525313A (en) * | 2018-09-21 | 2019-03-26 | 邬东强 | A kind of visible light communication system and method |
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Effective date of registration: 20150911 Address after: 518000 Guangdong city of Shenzhen province Futian District Shennan Road and CaiTian Road intersection East Xintiandi Plaza C block 2007-27 Applicant after: KUANG-CHI INTELLIGENT PHOTONIC TECHNOLOGY Ltd. Address before: 518034 A international business center, No. 1061, Xiang Mei Road, Guangdong, Shenzhen, Futian District, China 18B Applicant before: KUANG-CHI INNOVATIVE TECHNOLOGY Ltd. |
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Effective date of registration: 20240522 Address after: Building 4, 1st Floor, Foshan Military Civilian Integration Industrial Park, No. 68 Defu Road, Xingtan Town, Shunde District, Foshan City, Guangdong Province, 528300 Patentee after: Foshan Shunde Guangqi Advanced Equipment Co.,Ltd. Country or region after: China Address before: 518000 Guangdong, Shenzhen, Futian District, Shennan Road and colored field road intersection C East Block New World Plaza 2007-27 Patentee before: KUANG-CHI INTELLIGENT PHOTONIC TECHNOLOGY Ltd. Country or region before: China |