CN103159113A - Elevator multimedia system and communication method thereof - Google Patents
Elevator multimedia system and communication method thereof Download PDFInfo
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- CN103159113A CN103159113A CN2013100922137A CN201310092213A CN103159113A CN 103159113 A CN103159113 A CN 103159113A CN 2013100922137 A CN2013100922137 A CN 2013100922137A CN 201310092213 A CN201310092213 A CN 201310092213A CN 103159113 A CN103159113 A CN 103159113A
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Abstract
The invention discloses an elevator multimedia system and a communication method of the elevator multimedia system. The system comprises a multimedia actuator, a first modem and a second modem. The multimedia actuator is arranged in an elevator car and plays multimedia content according to control information of a multimedia server. The first modem is used for modulating multimedia content and the control information sent by the multimedia server into a power line carrier signal and transferring on an elevator traveling cable. The second modem is used for demodulating and transmitting the power line carrier signal transmitted on the elevator traveling cable to the multimedia actuator. When the elevator multimedia system is installed, a process for laying a new cable can be omitted, the cost of the elevator multimedia system is saved, and the installation efficiency is improved.
Description
Technical field
The invention belongs to the elevator MultiMedia Field, be specifically related to a kind of elevator multimedia system and communication means.
Background technology
Along with the development of modern science and technology, occurred in lift car can displaying video etc. the multimedia terminal of information, not only increased the joyful sense of elevator passenger, and a kind of new Information Communication platform be provided.
From existing elevator multimedia terminal in the market, also there are many areas for improvement.The broadcast information of existing lift car inner multimedia terminal is changed and Play Control mainly contains following several situation:
First kind of way is the broadcast information content replacing method of most of multimedia terminals, is the storage medium in changing device more, such as optical digital disk, CF card, SD card, USB storage etc.Due to the limitation in lift car, change troublesome poeration, and be unfavorable for the whole Play Control of different elevator inner multimedia terminals.So this mode is only applicable to not need frequently to change the multimedia terminal of play content.
The second way is that broadcast information and the Play Control of part multimedia terminal transmits by cable LAN.Arrange the retinue Ethernet cable in elevator hoistways, the multimedia terminal is connected, thereby realize the networking of multimedia terminal, be convenient to the renewal of broadcast information and carry out Play Control.This mode connects up loaded down with trivial details owing to need to arrange new trailing cable in elevator hoistways, is not easy to transform in existing elevator device.
The third mode is that broadcast information and the Play Control of part multimedia terminal transmits by WLAN.This mode need to not arranged new trailing cable in elevator hoistways, but directly is linked into the multimedia terminal by the mode of WLAN wireless network, thereby has realized the networking of multimedia terminal, has save wiring.Yet the problem that this mode exists wireless network to cover is in higher floor, because vertical distance just needs wireless network to have larger coverage greatly.In addition, the safety of wireless connections and reliability also need further checking.
Therefore, need to provide a kind of new elevator multimedia system, solve the problem that inconvenience is installed of the prior art.
Summary of the invention
The embodiment of the present invention provides a kind of elevator multimedia system and communication means thereof, when the lift-mounting multimedia system, can save the process of laying new cable, saves the elevator multimedia system cost, improves installation effectiveness.
The embodiment of the present invention provides a kind of elevator multimedia system, comprises,
The multimedia actr, described multimedia actr is arranged in lift car, is used for receiving content of multimedia and the control information that multimedia server sends, and plays described content of multimedia according to the control information of multimedia server;
Multimedia server is used for sending content of multimedia and control information to the multimedia actr, and described multimedia server is connected with the first modem;
The first modem, an end is connected with server, and the other end is connected with elevator trailing cable, and the content of multimedia and the control information that are used for multimedia server is sent are modulated into the power line carrier signal, transmit on elevator trailing cable; The power line carrier signal demodulation that perhaps will transmit on elevator trailing cable sends multimedia server to;
Second modem, an end is connected with elevator trailing cable, and the other end is connected with the multimedia actr, and the power line carrier signal demodulation that is used for transmitting on elevator trailing cable sends the multimedia actr to; The information of perhaps the multimedia actr being sent is modulated into the power line carrier signal, is transferred to multimedia server by elevator trailing cable.
The embodiment of the present invention also provides a kind of elevator multimedia system communication means, and it comprises step:
Multimedia server sends content of multimedia or control information to the multimedia actr;
The first modem is modulated into the power line carrier signal with content of multimedia or the control information that multimedia server sends, and transmits on elevator trailing cable;
The power line carrier signal demodulation that second modem will transmit on elevator trailing cable obtains content of multimedia or control information;
Second modem sends content of multimedia or control information to the multimedia actr.
Technique scheme can find out, due to the embodiment of the present invention by come transmitting multimedia contents and control information with power line carrier technology on the existing trailing cable of elevator device.Therefore when the lift-mounting multimedia system, can save the process of laying new cable, save the elevator multimedia system cost, improve installation effectiveness.
Description of drawings
In order to be illustrated more clearly in the embodiment of the present invention or technical scheme of the prior art, the below will do to introduce simply to the accompanying drawing of required use in embodiment or description of the Prior Art, apparently, accompanying drawing in the following describes is only some embodiments of the present invention, for those of ordinary skills, under the prerequisite of not paying creative work, can also obtain according to these accompanying drawings other accompanying drawing.
Fig. 1 is elevator multimedia system networking schematic diagram of the present invention;
Fig. 2 is the schematic diagram of multimedia actr;
Fig. 3 is the schematic diagram of multimedia server;
Fig. 4 is the schematic cross-section of elevator trailing cable of the present invention;
Fig. 5 is elevator multimedia system communication means diagram of circuit of the present invention.
The specific 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 embodiment is only the present invention's part embodiment, rather than whole embodiment.Based on the embodiment in the present invention, those of ordinary skills belong to the scope of protection of the invention not making all other embodiment that obtain under the creative work prerequisite.
The embodiment of the present invention provides a kind of elevator multimedia system, comprise, the multimedia actr, described multimedia actr is arranged in lift car, be used for receiving content of multimedia and the control information that multimedia server sends, play described content of multimedia according to the control information of multimedia server; Multimedia server is used for sending content of multimedia and control information to the multimedia actr, and described multimedia server is connected with the first modem; The first modem, an end is connected with server, and the other end is connected with elevator trailing cable, and the content of multimedia and the control information that are used for multimedia server is sent are modulated into the power line carrier signal, transmit on elevator trailing cable; The power line carrier signal demodulation that perhaps will transmit on elevator trailing cable sends multimedia server to; Second modem, an end is connected with elevator trailing cable, and the other end is connected with the multimedia actr, and the power line carrier signal demodulation that is used for transmitting on elevator trailing cable sends the multimedia actr to; The information of perhaps the multimedia actr being sent is modulated into the power line carrier signal, is transferred to multimedia server by elevator trailing cable.
The embodiment of the present invention also provides a kind of elevator multimedia system communication means, and it comprises step: multimedia server sends content of multimedia or control information to the multimedia actr; The first modem is modulated into the power line carrier signal with content of multimedia or the control information that multimedia server sends, and transmits on elevator trailing cable; The power line carrier signal demodulation that second modem will transmit on elevator trailing cable obtains content of multimedia or control information; Second modem sends content of multimedia or control information to the multimedia actr.Below be elaborated respectively.
Fig. 1 is elevator multimedia system networking schematic diagram of the present invention.Elevator multimedia system 100 shown in Figure 1 comprises: multimedia actr 1, multimedia server 2, terminal 3, the first modem 4 and second modem 5;
Described multimedia actr 1 is arranged in lift car, be used for to receive data, the information of coming from multimedia server 2 or terminal 3 transmission and carry out, the multimedia messages such as the passenger's displaying video according to order in the lift car, audio frequency, graph image, word;
Described multimedia server 2 is used for sending multimedia messages, and carries out multimedia Play Control as the carrier of the information such as local video, audio frequency, graph image, word or data; Multimedia server 2 can carry out Long-distance Control by one or several terminals 3; Described multimedia server 2 is connected with one or several first modems by ethernet.
Described terminal 3 is connected with multimedia server 2 by the internet, and described terminal 3 is founded a room in the strange land usually, can carry out Long-distance Control to one or several multimedia servers 2.
Described the first modem 4, adopt power line carrier technology (Power Line Carrier, PLC), the Ethernet data of multimedia server 2 is modulated into the signal that can transmit on electric wireline, or the signal demodulation on electric wireline is obtained Ethernet data and is transferred to multimedia server 2.
Described second modem 5 is used for being transferred to multimedia actr 1 after the power line signal demodulation, perhaps multimedia actr 1 local data is modulated into power line signal, passes to multimedia server 2 by trailing cable.
Fig. 2 is the schematic diagram of multimedia actr, and described multimedia actr 1 comprises processing unit 6, telltale 7 and loud speaker 8.Described processing unit 6 is used for the data that will obtain from modem 5 and shows passenger in lift car by telltale 7 and loud speaker 8 with multimedia form, the multimedia form comprises video, audio frequency, graph image, word etc., perhaps multimedia actr local information is transferred to modem 5; The described information that is transferred to modem 5 comprises the running state of described multimedia actr, time on the multimedia actr, fault alarm information, software version on the multimedia actr, the playing progress rate table, the current play content of multimedia actr, multimedia actr will play content etc.;
The data that modem 5 is used for multimedia actr 1 is sent are modulated into by power line carrier technology the signal that elevator trailing cable can transmit, or with the signal demodulate transmitted on elevator trailing cable to multimedia actr 1, realize the bi-directional conversion of data between multimedia actr 1 and elevator trailing cable.Modem 5 also can directly be integrated in multimedia actr 1 inside.
Fig. 3 is the schematic diagram of multimedia server, and described modem 4 is used for the data double-way conversion between multimedia server 2 and elevator trailing cable.
Because can having different multimedias, different areas, community, building throw in content, thereby will have very many content of multimedia, and multimedia actr 1 is not enough to store whole content of multimedia, therefore multimedia server 2 can be used as the local carrier of multimedia messages, data, and 1 of multimedia actr can be downloaded the content of multimedia of required broadcast from multimedia server 2 as required.
Multimedia server 2 is the multimedia runtime server, can classify to the content of multimedia that terminal 3 is submitted to, screening, legitimate verification etc., also can manage multimedia actr 1.
Fig. 4 is the schematic cross-section of elevator trailing cable of the present invention.Described elevator trailing cable 200 comprises power cable 210, light conduits 220, steel band 230 and fastening unit 240; Described power cable 210 comprises live wire 211 and zero line 212; Described light conduits 220 comprises live wire 221 and zero line 222; When power cable or light conduits were DC supply, 210 of described power cables comprised electrode line and negative line; 220 of described light conduits comprise electrode line and negative line; Described steel band 230 comprises the first steel rope 231, the second steel rope 232 and wraps up the rubber layer of the first steel rope 231 and the second steel rope 232, electrical isolation between described the first steel rope 231 and the second steel rope 232; Described steel rope can comprise some, and the steel rope that can get arbitrarily electrical isolation between two in installation process gets final product.Described fastening unit 240 is binding bar or restraining, and power cable 210, light conduits 220 and steel band 230 are strapped in together.Described power cable 210, light conduits 220, steel band 230 are all the existing trailing cable of elevator device.Therefore when the lift-mounting multimedia system, can save the process of laying new cable, save the elevator multimedia system cost, improve installation effectiveness.Certainly, in the situation that the existing trailing cable power supply capacity of elevator device deficiency still needs to lay new trailing cable, to make up power shortage.
Therefore, transmit the power line carrier signal by the existing trailing cable of elevator device and comprise three kinds of connectivity scenarios:
1) by the transmission of the light conduits in the existing trailing cable of elevator device;
In this scheme, the coupling end of described the first modem and elevator trailing cable comprises first interface and the second interface, described first interface is connected with the live wire of the light conduits of trailing cable, and described the second interface is connected with the zero line of the light conduits of trailing cable; The coupling end of described second modem and elevator trailing cable comprises first interface and the second interface, and described first interface is connected with the live wire of the light conduits of trailing cable, and described the second interface is connected with the zero line of the light conduits of trailing cable.
When light conduits is DC supply, the first interface of described the first modem be connected interface and be connected with negative line with the electrode line of described light conduits 220 1 ends respectively; The first interface of described second modem be connected interface and be connected with negative line with the electrode line of described light conduits 220 other ends respectively;
Because the light conduits 220 that uses is the existing trailing cable of elevator device, therefore can save the process of laying new cable in this scheme, save the elevator multimedia system cost, improve installation effectiveness.
2) transmit by the zero line of the power cable in the existing trailing cable of elevator device and the zero line of light conduits;
In this scheme, the coupling end of described the first modem and elevator trailing cable comprises first interface and the second interface, described first interface is connected with the zero line of the power cable of trailing cable, and described the second interface is connected with the zero line of the light conduits of trailing cable; The coupling end of described second modem and elevator trailing cable comprises first interface and the second interface, and described first interface is connected with the zero line of the power cable of trailing cable, and described the second interface is connected with the zero line of the light conduits of trailing cable.
When light conduits is DC supply, the first interface of described the first modem be connected interface respectively with the negative line of described power cable 210 1 ends be connected the negative line of light conduits 220 1 ends and be connected; The first interface of described the first modem be connected interface respectively with the negative line of described power cable 210 other ends be connected the negative line of light conduits 220 other ends and be connected;
This scheme is because zero line or the negative line of the zero line that uses power cable 210 or negative line and light conduits 220 transmit the power line carrier signal, these cables are the existing trailing cable of elevator device, therefore can save the process of laying new cable, save the elevator multimedia system cost, improve installation effectiveness.In addition, be two groups of zero lines or negative line due to what use, on line, voltage is lower, can reduce the operating voltage of modem, and then can the lower low voltage modulated demoder of use cost, and then saves system cost.
3) thoroughly do away with the steel rope transmission of edge by two of the steel band in the existing trailing cable of elevator device;
The coupling end of described the first modem and elevator trailing cable comprises first interface and the second interface, and the first steel rope in the steel band of described first interface and trailing cable is connected, and the second steel rope in the steel band of described the second interface and trailing cable is connected; The coupling end of described second modem and elevator trailing cable comprises first interface and the second interface, and the first steel rope in the steel band of described first interface and trailing cable is connected, and the second steel rope in the steel band of described the second interface and trailing cable is connected; Electrical isolation between described the first steel rope and the second steel rope.
Therefore this scheme can save the process of laying new cable because the steel rope in the steel band that uses existing trailing cable transmits the power line carrier signal, saves the elevator multimedia system cost, improves installation effectiveness.In addition, because being uses two in steel band to transmit the power line carrier signal with steel rope insulated from each other, therefore this no-voltage on steel rope can reduce the operating voltage of modem, and then can the lower low voltage modulated demoder of use cost, and then save system cost.
Fig. 5 is elevator multimedia system communication means diagram of circuit of the present invention, and it comprises that step is as follows:
Step 501: multimedia server sends content of multimedia or control information to the multimedia actr;
Step 502: the first modem is modulated into the power line carrier signal with content of multimedia or the control information that multimedia server sends, and transmits on elevator trailing cable;
Step 503: the power line carrier signal demodulation that second modem will transmit on elevator trailing cable obtains content of multimedia or control information;
Step 504: second modem sends content of multimedia or control information to the multimedia actr.
Scheme 1: content of multimedia or control information that multimedia server is sent are modulated into the power line carrier signal, transmit on the light conduits in the existing trailing cable of elevator device.
Scheme 2: content of multimedia or control information that multimedia server is sent are modulated into the power line carrier signal, transmit on the zero line of the power cable in the existing trailing cable of elevator device and the zero line of light conduits; Perhaps transmit on the negative line of the negative line of the power cable in the existing trailing cable of elevator device and light conduits.
Scheme 3: content of multimedia or control information that multimedia server is sent are modulated into the power line carrier signal, transmit on the first steel rope in the steel band in the existing trailing cable of elevator device and the second steel rope; Electrical isolation between described the first steel rope and the second steel rope.
Elevator multimedia play system of the present invention, the networking of elevator multimedia terminal, the problem of Access Network have not only been solved, and the multimedia management platform of providing convenience, can realize on a time period, by the community, carry out pointed multimedia by building and control.
Above a kind of elevator multimedia system and the communication means that the embodiment of the present invention is provided, be described in detail, used specific case herein principle of the present invention and embodiment are set forth, the explanation of above embodiment just is used for helping to understand method of the present invention and core concept thereof; Simultaneously, for one of ordinary skill in the art, according to thought of the present invention, all will change in specific embodiments and applications, in sum, this description should not be construed as limitation of the present invention.
Claims (10)
1. an elevator multimedia system, is characterized in that comprising,
The multimedia actr, described multimedia actr is arranged in lift car, is used for receiving content of multimedia and the control information that multimedia server sends, and plays described content of multimedia according to the control information of multimedia server;
Multimedia server is used for sending content of multimedia and control information to the multimedia actr, and described multimedia server is connected with the first modem;
The first modem, an end is connected with server, and the other end is connected with elevator trailing cable, and the content of multimedia and the control information that are used for multimedia server is sent are modulated into the power line carrier signal, transmit on elevator trailing cable; The power line carrier signal demodulation that perhaps will transmit on elevator trailing cable sends multimedia server to;
Second modem, an end is connected with elevator trailing cable, and the other end is connected with the multimedia actr, and the power line carrier signal demodulation that is used for transmitting on elevator trailing cable sends the multimedia actr to; The information of perhaps the multimedia actr being sent is modulated into the power line carrier signal, is transferred to multimedia server by elevator trailing cable.
2. the system as claimed in claim 1, is characterized in that, described elevator trailing cable is the existing trailing cable of elevator device.
3. system as claimed in claim 2, it is characterized in that, described the first modem and second modem are connected with light conduits in the existing trailing cable of elevator device, content of multimedia and control information are modulated into the power line carrier signal, transmit on the light conduits in the existing trailing cable of elevator device.
4. system as claimed in claim 2, it is characterized in that, the coupling end of described the first modem and elevator trailing cable comprises first interface and the second interface, described first interface is connected with the zero line of the power cable of trailing cable, and described the second interface is connected with the zero line of the light conduits of trailing cable; The coupling end of described second modem and elevator trailing cable comprises first interface and the second interface, and described first interface is connected with the zero line of the power cable of trailing cable, and described the second interface is connected with the zero line of the light conduits of trailing cable.
5. system as claimed in claim 2, it is characterized in that, the coupling end of described the first modem and elevator trailing cable comprises first interface and the second interface, the first steel rope in the steel band of described first interface and trailing cable is connected, and the second steel rope in the steel band of described the second interface and trailing cable is connected; The coupling end of described second modem and elevator trailing cable comprises first interface and the second interface, and the first steel rope in the steel band of described first interface and trailing cable is connected, and the second steel rope in the steel band of described the second interface and trailing cable is connected; Electrical isolation between described the first steel rope and the second steel rope.
6. elevator multimedia system communication means is characterized in that comprising step:
Multimedia server sends content of multimedia or control information to the multimedia actr;
The first modem is modulated into the power line carrier signal with content of multimedia or the control information that multimedia server sends, and transmits on elevator trailing cable;
The power line carrier signal demodulation that second modem will transmit on elevator trailing cable obtains content of multimedia or control information;
Second modem sends content of multimedia or control information to the multimedia actr.
7. method as claimed in claim 6, it is characterized in that, described the first modem is modulated into the power line carrier signal with content of multimedia or the control information that multimedia server sends, transmitting step is specially content of multimedia or control information that multimedia server is sent and is modulated into the power line carrier signal on elevator trailing cable, transmits on the existing trailing cable of elevator device.
8. method as claimed in claim 7, it is characterized in that, described the first modem is modulated into the power line carrier signal with content of multimedia or the control information that multimedia server sends, transmitting step is specially content of multimedia or control information that multimedia server is sent and is modulated into the power line carrier signal on elevator trailing cable, transmits on the light conduits in the existing trailing cable of elevator device.
9. method as claimed in claim 7, is characterized in that,
Described the first modem is modulated into the power line carrier signal with content of multimedia or the control information that multimedia server sends, transmitting step is specially content of multimedia or control information that multimedia server is sent and is modulated into the power line carrier signal on elevator trailing cable, transmits on the zero line of the power cable in the existing trailing cable of elevator device and the zero line of light conduits.
10. method as claimed in claim 7, is characterized in that,
Described the first modem is modulated into the power line carrier signal with content of multimedia or the control information that multimedia server sends, transmitting step is specially on elevator trailing cable: content of multimedia or control information that multimedia server is sent are modulated into the power line carrier signal, transmit on the first steel rope in the steel band in the existing trailing cable of elevator device and the second steel rope; Electrical isolation between described the first steel rope and the second steel rope.
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| CN201310092213.7A CN103159113B (en) | 2013-03-21 | 2013-03-21 | A kind of elevator multimedia system and communication means |
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| CN201310092213.7A CN103159113B (en) | 2013-03-21 | 2013-03-21 | A kind of elevator multimedia system and communication means |
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| CN106744101A (en) * | 2016-12-05 | 2017-05-31 | 深圳市图焌科技有限公司 | A kind of elevator hoistways data transmission device and transmission method based on PLC technology |
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| CN103159113B (en) | 2016-04-27 |
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