一种信号混合输出方法、装置及系统Signal mixed output method, device and system技术领域Technical field本发明涉及广播电视领域,尤其涉及一种信号混合输出方法、装置及系统。The present invention relates to the field of broadcast television, and in particular, to a signal mixing output method, apparatus and system.
背景技术Background technique在广电系统进行有线电视网络宽带、双向化改造的方法中,EOC电力线高速数据通信技术(HomePlug AV)技术可以有效地发挥有线电视网频带宽、成本低、易普及的优势,有利于有线电视网络建设成为千家万户的多媒体信息平台,满足社会各界和广大居民的多方面需求,推进三网融合。In the method of broadband and two-way transformation of cable TV network in broadcasting and television system, EOC power line high-speed data communication technology (HomePlug AV) technology can effectively utilize the advantages of cable TV network bandwidth, low cost and easy popularization, which is beneficial to cable TV network. It has become a multimedia information platform for thousands of households, meeting the needs of all sectors of society and the general public, and promoting the integration of the three networks.
有线电视网络双向改造工程中双工器被大量使用。双工器基本由低通滤波器和高通滤波器(或带通滤波器)组成,具有低插入损耗、高隔离度和低反射等特点,能减少复杂的调试工作,可简化设备电路设计。双工器把低通端口和高通端口的信号进行混合,有效地除掉通频带以外的信号和多余的频段、频率的干扰,使得混进用户端口的双频段信号不受影响。双工器依据表述习惯,本说明书中写为X/Y模式双工器,X表示低通滤波器截止频率,Y表示高通滤波器截止频率。例如30/36模式双工器表示低通滤波器截止频率是30MHz,高通滤波器截止频率是36MHz。65/87模式双工器表示低通滤波器截止频率是65MHz,高通滤波器截止频率是87MHz。Duplexers in the two-way reconstruction of cable TV networks are heavily used. The duplexer is basically composed of a low-pass filter and a high-pass filter (or band-pass filter). It has low insertion loss, high isolation and low reflection. It can reduce complicated debugging work and simplify the circuit design of the device. The duplexer mixes the signals of the low-pass port and the high-pass port, effectively removing signals outside the passband and interference of excess frequency bands and frequencies, so that the dual-band signals mixed into the user port are not affected. The duplexer is written according to the convention. In this specification, it is written as an X/Y mode duplexer, where X represents the low-pass filter cutoff frequency and Y represents the high-pass filter cutoff frequency. For example, the 30/36 mode duplexer indicates that the low pass filter cutoff frequency is 30 MHz and the high pass filter cutoff frequency is 36 MHz. The 65/87 mode duplexer indicates that the low pass filter cutoff frequency is 65 MHz and the high pass filter cutoff frequency is 87 MHz.
在有线网络改造为以太网数据通过同轴电缆传输(EOC:Ethernet Over Coax)设备的过程中,存在多种有线网络形式同时共存的情况。如已是双向的电缆调制解调器终端系统(CMTS:Cable Modem Terminal Systems)网络和未双向改造成CMTS的有线电视网络。CMTS网络上行控制、数据通道,需要占用40MHz左右的频段。EOC HomePlug AV有两种方案:常规方案一和常规方案二。In the process of transforming a wired network into an Ethernet data transmission over an coaxial cable (EOC: Ethernet Over Coax) device, there are cases in which a plurality of wired network forms coexist at the same time. For example, it is a two-way cable modem terminal system (CMTS: Cable Modem Terminal Systems) network and a cable television network that has not been bi-directionally transformed into CMTS. The uplink control and data channel of the CMTS network need to occupy a frequency band of about 40 MHz. EOC HomePlug AV has two options: regular one and two.
EOC常规方案二是通过EOC芯片实现以太网协议和EOC协议之间的转换,然后把EOC协议的低频数据与CATV口高频信号通过双工器混合到用户端口。最终实现互联网数据与有线电视信号的融合。理论最大数据传送速率300Mbps,工作频段7.5MHz~65MHz,与CMTS网络上行频段40MHz冲突。The EOC conventional scheme 2 is to convert the Ethernet protocol and the EOC protocol through the EOC chip, and then mix the low frequency data of the EOC protocol and the high frequency signal of the CATV port through the duplexer to the user.port. Finally, the integration of Internet data and cable TV signals is realized. The theoretical maximum data transmission rate is 300Mbps, and the working frequency band is 7.5MHz to 65MHz, which conflicts with the 40MHz upstream frequency band of the CMTS network.
EOC常规方案一实现方法硬件结构上和方案二类似,只是主要采用的EOC芯片不同,工作频段为7.5MHz~30MHz。而如果不采用EOC常规方案二,而选用EOC常规方案一,工作频段较方案二窄35MHz。在不是CMTS的有线电视网络中,由于频段有限,理论最大数据传送速率只有100Mbps,不如采用常规方案二的EOC设备。EOC conventional scheme 1 implementation method hardware structure is similar to scheme 2, except that the main EOC chip is different, and the working frequency band is 7.5MHz to 30MHz. If the EOC conventional scheme 2 is not adopted, and the EOC conventional scheme 1 is selected, the working frequency band is narrower than the scheme 2 by 35 MHz. In a cable television network that is not a CMTS, the theoretical maximum data transmission rate is only 100 Mbps due to the limited frequency band, which is not as good as the EOC equipment of the conventional scheme 2.
通常的设备只能适应其中一种情况,针对不同的网络形式要开发不同的EOC设备。另外,常规方案二加上双工器EOC解决方案,在CMTS环境下可能会遇到带外杂散电平超标的问题。The usual equipment can only adapt to one of the situations, and different EOC devices should be developed for different network forms. In addition, the conventional scheme 2 plus the duplexer EOC solution may encounter the problem of out-of-band spurious level exceeding the standard in the CMTS environment.
发明内容Summary of the invention
本发明实施例是提供一种信号混合输出方法、装置及系统,以使EOC设备适应其所在的不同网络环境。Embodiments of the present invention provide a signal mixing output method, apparatus, and system to adapt an EOC device to different network environments in which it is located.
一种信号混合输出方法,包括:A signal mixed output method includes:
当同轴电缆传输EOC设备运行在第一网络,将所述EOC设备的工作频段配置为第一工作频段,当所述EOC设备运行在第二网络,将所述EOC设备的工作频段配置为第二工作频段;When the coaxial cable transmission EOC device operates in the first network, the working frequency band of the EOC device is configured as the first working frequency band, and when the EOC device operates in the second network, the working frequency band of the EOC device is configured as the first Second working frequency band;
将所述EOC设备输出的EOC协议的低频数据信号和有线电视网CATV口输出的高频信号通过双工器混合输出到用户端口。The low frequency data signal of the EOC protocol output by the EOC device and the high frequency signal output by the CATV port of the cable television network are mixed and output to the user port through the duplexer.
可选地,所述第一工作频段与所述第一网络的工作频段不冲突,所述第二工作频段与所述第二网络的工作频段不冲突,所述第一工作频段与所述第二网络的工作频段冲突。Optionally, the first working frequency band does not conflict with the working frequency band of the first network, and the second working frequency band does not conflict with the working frequency band of the second network, where the first working frequency band and the first working frequency band The working frequency band conflict of the two networks.
可选地,所述第二工作频段的带宽小于所述第一工作频段的带宽。Optionally, the bandwidth of the second working frequency band is smaller than the bandwidth of the first working frequency band.
可选地,所述双工器的低通截止频率不小于所述第一工作频段和第二工作频段中的最大频率。Optionally, the low pass cutoff frequency of the duplexer is not less than a maximum frequency of the first working frequency band and the second working frequency band.
可选地,将所述EOC设备输出的EOC协议的低频数据信号和有线电视网CATV口输出的高频信号通过双工器混合输出到用户端口,包括:Optionally, the low frequency data signal of the EOC protocol output by the EOC device and the high frequency signal output by the CATV port of the cable television network are mixed and output to the user port through the duplexer, including:
当同轴电缆传输EOC设备运行在第一网络,将所述EOC设备输出的EOC协议的低频数据信号和有线电视网CATV口输出的高频信号通过第一双工器混合输出到用户端口;When the coaxial cable transmission EOC device operates in the first network, the EOC outputted by the EOC deviceThe low frequency data signal of the protocol and the high frequency signal output by the CATV port of the cable television network are mixed and output to the user port through the first duplexer;
当同轴电缆传输EOC设备运行在第二网络,将所述EOC设备输出的EOC协议的低频数据信号和有线电视网CATV口输出的高频信号通过第二双工器混合输出到用户端口;When the coaxial cable transmission EOC device operates in the second network, the low frequency data signal of the EOC protocol output by the EOC device and the high frequency signal output by the cable network CATV port are mixed and output to the user port through the second duplexer;
其中,所述第一双工器的低通截止频率与所述第一工作频段的最高频率相同,所述第一双工器的低通截止频率与所述第二工作频段的最高频率相同。The low-pass cutoff frequency of the first duplexer is the same as the highest frequency of the first working frequency band, and the low-pass cutoff frequency of the first duplexer is the same as the highest frequency of the second working frequency band.
一种信号混合输出装置,包括:A signal mixing output device comprising:
第一选择模块,设置为:当同轴电缆传输EOC设备运行在第一网络,选择第一工作频段,当同轴电缆传输EOC设备运行在第二网络,选择第二工作频段;The first selection module is configured to: when the coaxial cable transmission EOC device operates in the first network, select the first working frequency band, and when the coaxial cable transmission EOC device operates in the second network, select the second working frequency band;
配置模块,设置为:将所述EOC设备的工作频段配置为所述第一选择模块所选择的工作频段;a configuration module, configured to: configure a working frequency band of the EOC device as a working frequency band selected by the first selection module;
输出模块,设置为:将所述EOC设备输出的EOC协议的低频数据信号和有线电视网CATV口输出的高频信号通过双工器混合输出到用户端口。The output module is configured to: output the low frequency data signal of the EOC protocol output by the EOC device and the high frequency signal output by the CATV port of the cable television network through the duplexer to output to the user port.
可选地,所述第一工作频段与所述第一网络的工作频段不冲突,所述第二工作频段与所述第二网络的工作频段不冲突,所述第一工作频段与所述第二网络的工作频段冲突。Optionally, the first working frequency band does not conflict with the working frequency band of the first network, and the second working frequency band does not conflict with the working frequency band of the second network, where the first working frequency band and the first working frequency band The working frequency band conflict of the two networks.
可选地,所述第二工作频段的带宽小于所述第一工作频段的带宽。Optionally, the bandwidth of the second working frequency band is smaller than the bandwidth of the first working frequency band.
可选地,所述双工器的低通截止频率不小于所述第一工作频段和第二工作频段中的最大频率。Optionally, the low pass cutoff frequency of the duplexer is not less than a maximum frequency of the first working frequency band and the second working frequency band.
可选地,上述装置还包括:Optionally, the foregoing apparatus further includes:
第二选择模块,设置为:当所述EOC设备运行在第一网络,选择第一双工器,当所述EOC设备运行在第二网络,选择第二双工器;a second selection module, configured to: when the EOC device operates in a first network, select a first duplexer, and when the EOC device operates in a second network, select a second duplexer;
启动模块,设置为:启动所述第二选择模块选择的双工器。The startup module is configured to: start the duplexer selected by the second selection module.
本发明实施例还提供一种信号混合输出系统,包括同轴电缆传输EOC设备、第一双工器、第二双工器以及双工器选择装置,其中:The embodiment of the invention further provides a signal mixing output system, comprising a coaxial cable transmission EOC device, a first duplexer, a second duplexer and a duplexer selection device, wherein:
所述EOC设备设置为:当所述EOC设备运行在第一网络,工作频段配置为第一工作频段,当所述EOC设备运行在第二网络,工作频段配置为第二工作频段,输出EOC协议的低频数据信号;The EOC device is configured to: when the EOC device operates in a first network, the working frequency band is configured as a first working frequency band, and when the EOC device operates in a second network, the working frequency band is configured as a secondWorking frequency band, output low frequency data signal of EOC protocol;
所述双工器选择装置设置为:当所述EOC设备运行在第一网络,选择所述第一双工器,当所述EOC设备运行在第二网络,选择所述第二双工器;The duplexer selecting means is configured to: when the EOC device operates in a first network, select the first duplexer, and when the EOC device operates in a second network, select the second duplexer;
第一双工器以及第二双工器设置为:将所述EOC设备输出的EOC协议的低频数据信号和有线电视网CATV口输出的高频信号混合输出到用户端口。The first duplexer and the second duplexer are configured to: output the low frequency data signal of the EOC protocol output by the EOC device and the high frequency signal output by the cable network CATV port to the user port.
可选地,所述第一双工器的低通截止频率与所述第一工作频段的最高频率相同,所述第一双工器的低通截止频率与所述第二工作频段的最高频率相同。Optionally, a low pass cutoff frequency of the first duplexer is the same as a highest frequency of the first working frequency band, and a low pass cutoff frequency of the first duplexer and a highest frequency of the second working frequency band the same.
可选地,所述双工器选择装置包括选择开关。Optionally, the duplexer selection device comprises a selection switch.
本发明实施例还提供一种计算机可读存储介质,存储有程序指令,当该程序指令被执行时可实现上面所述的方法。The embodiment of the invention further provides a computer readable storage medium storing program instructions, which can be implemented when the program instructions are executed.
从以上所述可以看出,本发明实施例实现了根据EOC设备所在网络的工作频段来对EOC设备的工作频段进行灵活配置,从而使EOC设备能够适应其所在的不同网络环境。As can be seen from the above, the embodiment of the present invention implements flexible configuration of the working frequency band of the EOC device according to the working frequency band of the network where the EOC device is located, so that the EOC device can adapt to different network environments in which it is located.
附图概述BRIEF abstract
图1表示本发明实施例提供的一种信号混合输出方法的步骤流程图;1 is a flow chart showing the steps of a signal mixing output method according to an embodiment of the present invention;
图2表示本较佳实施方式的一种EOC设备的模式切换方法硬件框图一;2 is a hardware block diagram 1 of a mode switching method of an EOC device according to the preferred embodiment;
图3表示本较佳实施方式的一种EOC设备的模式切换方法硬件框图二;3 is a hardware block diagram 2 of a mode switching method of an EOC device according to the preferred embodiment;
图4表示本较佳实施方式的一种EOC设备的模式切换方法硬件框图三;4 is a hardware block diagram 3 of a mode switching method of an EOC device according to the preferred embodiment;
图5表示本较佳实施方式的一种EOC设备的模式切换方法通用硬件框图;FIG. 5 is a general hardware block diagram showing a mode switching method of an EOC device according to the preferred embodiment; FIG.
图6表示本较佳实施方式的一种EOC设备的模式切换的基本实现方法。FIG. 6 shows a basic implementation method of mode switching of an EOC device according to the preferred embodiment.
图7表示本发明实施例提供的一种信号混合输出装置的结构框图。FIG. 7 is a structural block diagram of a signal mixing output device according to an embodiment of the present invention.
本发明的较佳实施方式Preferred embodiment of the invention
为使本发明实施例的目的、技术方案和优点更加清楚,下面将结合附图及具体实施例对本发明实施例进行详细描述。In order to make the objects, technical solutions and advantages of the embodiments of the present invention more clear, the following will be combined with the accompanying drawings.The embodiments of the present invention are described in detail in the specific embodiments.
本发明实施例中,当EOC设备运行在第一网络,将所述EOC设备的工作频段配置为第一工作频段,当EOC设备运行在第二网络,将所述EOC设备的工作频段配置为第二工作频段;将所述EOC设备输出的EOC协议的低频数据信号和有线电视网CATV口输出的高频信号通过双工器混合输出到用户端口。In the embodiment of the present invention, when the EOC device operates in the first network, the working frequency band of the EOC device is configured as the first working frequency band, and when the EOC device operates in the second network, the working frequency band of the EOC device is configured as the first The working frequency band is: the low frequency data signal of the EOC protocol output by the EOC device and the high frequency signal output by the CATV port of the cable television network are mixed and output to the user port through the duplexer.
图1表示本发明实施例提供的一种信号混合输出方法的步骤流程图,参照图1,本发明实施例提供一种信号混合输出方法,同轴电缆传输EOC设备输出的EOC协议的低频数据信号和有线电视网CATV口输出的高频信号能够通过双工器混合输出到用户端口,所述EOC设备能够运行在至少两个网络中的任一网络,所述EOC设备具备至少两个工作频段,与所述至少两个网络的工作频段存在设定的第一对应关系,所述信号混合输出方法包括如下步骤:1 is a flow chart showing the steps of a signal mixing output method according to an embodiment of the present invention. Referring to FIG. 1, an embodiment of the present invention provides a signal mixing output method, and a coaxial cable transmits an EOC protocol low frequency data signal output by an EOC device. The high frequency signal outputted by the CATV port of the cable television network can be output to the user port through a duplexer, and the EOC device can operate in any of at least two networks, the EOC device having at least two working frequency bands. There is a first corresponding relationship with the working frequency bands of the at least two networks, and the signal mixed output method includes the following steps:
步骤101,根据所述EOC设备当前运行在的所述至少两个网络中的第一网络的工作频段和所述第一对应关系,从所述至少两个工作频段中选择出第一工作频段;Step 101: Select a first working frequency band from the at least two working frequency bands according to a working frequency band of the first network and the first corresponding relationship in the at least two networks in which the EOC device is currently running.
步骤102,将所述EOC设备的工作频段配置为所述第一工作频段。Step 102: Configure a working frequency band of the EOC device as the first working frequency band.
可见,通过上述方式,实现了根据EOC设备所在网络的工作频段来对EOC设备的工作频段进行灵活配置,从而使EOC设备能够适应其所在的不同网络环境。It can be seen that, by the above manner, the working frequency band of the EOC device is flexibly configured according to the working frequency band of the network where the EOC device is located, so that the EOC device can adapt to different network environments in which it is located.
其中,所述双工器的低通截止频率可以不小于所述至少两个工作频段中的最大频率。The low pass cutoff frequency of the duplexer may be not less than a maximum frequency of the at least two working frequency bands.
本发明实施例中,可以有:In the embodiment of the present invention, there may be:
所述至少两个工作频段中的每个工作频段与其在所述对应关系中对应的工作频段不冲突,所述第一工作频段与所述至少两个网络中第二网络的工作频段冲突。Each of the at least two working frequency bands does not conflict with the corresponding working frequency band in the corresponding relationship, and the first working frequency band conflicts with the working frequency band of the second network of the at least two networks.
这样,就避免了设备工作频段与设备所在网络工作频段之间的冲突。In this way, the conflict between the working frequency band of the device and the working frequency band of the network where the device is located is avoided.
可选地:Optionally:
所述第二网络的工作频段在所述对应关系中对应第二工作频段,所述第二工作频段的带宽小于所述第一工作频段的带宽。The working frequency band of the second network corresponds to the second working frequency band in the corresponding relationship, and the bandwidth of the second working frequency band is smaller than the bandwidth of the first working frequency band.
这样,EOC设备在频段不冲突时可以输出更大带宽的信号,从而提升了数据传送速率。In this way, the EOC device can output a signal with a larger bandwidth when the frequency bands do not collide, thereby increasing the data transfer rate.
本发明实施例中,为了避免带外杂散电平超标的问题,可以有:In the embodiment of the present invention, in order to avoid the problem that the out-of-band spurious level exceeds the standard, there may be:
所述低频数据信号和所述高频信号能够通过至少两个双工器中的任一双工器混合输出到用户端口,所述至少两个工作频段与所述至少两个双工器存在设定的第二对应关系,所述任一双工器的低通截止频率与所述任一双工器在所述第二对应关系中对应的工作频段的最高频率相同,所述信号混合输出方法还包括:The low frequency data signal and the high frequency signal can be mixed and output to a user port through any one of at least two duplexers, and the at least two working frequency bands and the at least two duplexers are present a second corresponding relationship, the low-pass cutoff frequency of any of the duplexers is the same as the highest frequency of the corresponding working frequency band of the duplexer in the second corresponding relationship, and the signal mixed output method Also includes:
根据所述第一网络的工作频段和所述第二对应关系,从所述至少两个双工器中选择出第一双工器;Determining, according to the working frequency band of the first network and the second correspondence, a first duplexer from the at least two duplexers;
启动所述第一双工器,使得所述EOC设备输出的EOC协议的第一低频数据信号和有线电视网CATV口输出的第一高频信号能够通过所述第一双工器混合输出到所述用户端口。Activating the first duplexer such that the first low frequency data signal of the EOC protocol output by the EOC device and the first high frequency signal output by the cable network CATV port can be mixed and outputted by the first duplexer User port.
为将本发明实施例阐述得更加清楚明白,下面提供本发明实施例的另一种实施方式。In order to make the embodiments of the present invention more clearly understood, another embodiment of the embodiments of the present invention is provided below.
本实施方式提供一种EOC设备的模式切换方法。The embodiment provides a mode switching method of an EOC device.
本实施方式应用于广播电视领域,尤其涉及在广电系统有线电视网络双向改造过程中,可切换EOC设备工作模式以适应CMTS网络和其他有线电视网络情况的一种方法。The present embodiment is applied to the field of broadcast television, and particularly relates to a method for switching the working mode of an EOC device to adapt to the CMTS network and other cable television networks during the two-way transformation of the cable television network of the broadcasting and television system.
因此,需要设计一种方法,能够使EOC设备同时适应CMTS有线网络和非CMTS有线网络。这种方法要能适应以后其他类型的有线电视网络。Therefore, there is a need to devise a method that enables EOC devices to accommodate both CMTS wired networks and non-CMTS wired networks. This method should be able to adapt to other types of cable TV networks in the future.
本实施方式的目的是给出一种方法,使得EOC设备能够同时适应CMTS有线网络和非CMTS有线网络,满足高速数据传输和系统可靠性的要求。克服相关技术中对于不同的有线网络环境要提供不同的EOC硬件设备的缺点。The purpose of this embodiment is to provide a method for enabling an EOC device to simultaneously accommodate a CMTS wired network and a non-CMTS wired network to meet the requirements of high speed data transmission and system reliability. Overcoming the shortcomings of the related art to provide different EOC hardware devices for different wired network environments.
本较佳实施方式所述的方法硬件主要包括双工器和插片。插片的功能是插上时连接两端导线,拔出时断开两端导线。可灵活插拔控制导线通断,使用寿命持久。The method hardware of the preferred embodiment mainly includes a duplexer and an insert. The function of the insert is to connect the wires at both ends when plugged in, and disconnect the wires at both ends when pulling out. The control wire can be flexibly inserted and disconnected for long-lasting service.
图2是本发明实施例的基本实现方法框图。根据EOC设备所处的有线电视网络环境不同,如果是CMTS网络,拔出插片3、4、6,插入插片1、2、5,选择30/36模式双工器;如果不是CMTS网络,拔出插片1、2、5,插入插片3、4、6,选择65/87模式双工器。2 is a block diagram of a basic implementation method of an embodiment of the present invention. According to the cable network environment in which the EOC equipment is located, if it is a CMTS network, pull out the blades 3, 4, and 6 and insert the inserts 1, 2, and 5,Select the 30/36 mode duplexer; if it is not the CMTS network, pull out the inserts 1, 2, 5, insert the inserts 3, 4, and 6 and select the 65/87 mode duplexer.
EOC设备上电后,EOC芯片初试化工作频段为7.5~65MHz。如果不是CMTS网络,则设备按照此频段工作,软件无需做调整。此时,设备最大数据传送速度为300Mbps。After the EOC device is powered on, the initial working frequency of the EOC chip is 7.5-65MHz. If it is not a CMTS network, the device works according to this frequency band and the software does not need to be adjusted. At this time, the maximum data transfer speed of the device is 300 Mbps.
如果是在CMTS网络中,通过软件配置EOC芯片,修改工作频段为7.5~30MHz。此时,EOC设备在CMTS网络中正常运行,最大数据传送速度为100Mbps。If it is in the CMTS network, the EOC chip is configured by software, and the working frequency band is modified to be 7.5 to 30 MHz. At this point, the EOC device operates normally in the CMTS network with a maximum data transfer speed of 100 Mbps.
CMTS网络上行控制、数据通道需要占用40MHz左右的频段。EOC芯片工作频段7.5MHz~65MHz。如果只通过软件把EOC芯片工作频段配置为7.5MHz~30MHz,关断30MHz~65MHz,使用频谱分析仪可测得设备的带外杂散电平比较大。所以按照本实施方式方法,配合插片选择双工器来实现。双工器模式有30/36和65/87可选。如果用户是CMTS网络,那么双工器就用30/36模式,通过双工器的低通滤波功能滤除30MHz以上带外杂散。如果不是CMTS网络,那么双工器就用65/87模式。The uplink control and data channel of the CMTS network need to occupy a frequency band of about 40 MHz. The EOC chip operates in the frequency range of 7.5MHz to 65MHz. If the EOC chip operating frequency band is only configured by software to 7.5MHz ~ 30MHz, turn off 30MHz ~ 65MHz, the spectrum analyzer can be used to measure the out-of-band spurious level of the device is relatively large. Therefore, according to the method of the embodiment, the duplexer is selected in conjunction with the insert. The duplexer mode is available in 30/36 and 65/87. If the user is a CMTS network, the duplexer uses the 30/36 mode to filter out the out-of-band spurs above 30 MHz through the low-pass filtering function of the duplexer. If it is not a CMTS network, the duplexer uses the 65/87 mode.
本较佳实施方式还包括图3中的另一种硬件形式。当CATV端口、30/36模式双工器HP端口、和65/87模式双工器HP端口在印刷电路板上形成一个T型拓扑结构,65/87模式双工器HP端口是该T型拓扑结构的分岔线路,并且CATV端口距离30/36模式双工器HP端口很近时,可以省去图2中的插片1。因为当选择65/87模式时,CATV端口到30/36模式双工器HP端口的这段线路很短,引起的信号反射很小,对CATV端口到65/87模式双工器HP端口的这段线路信号完整性影响可以忽略。同理,当EOC芯片端口、30/36模式双工器LP端口、和65/87模式双工器LP端口在印刷电路板上形成一个T型拓扑结构,65/87模式双工器LP端口是该T型拓扑结构的分岔线路,并且EOC芯片距离30/36模式双工器LP端口很近时,可以省去图2中的插片2。因为当选择65/87模式时,EOC芯片端口到30/36模式双工器LP端口的这段线路很短,引起的信号反射很小,对EOC芯片端口到65/87模式双工器LP端口的这段线路信号完整性影响可以忽略。同理,当用户端口、30/36模式双工器COM端口、和65/87模式双工器COM端口在印刷电路板上形成一个T型拓扑结构,65/87模式双工器COM端口是该T型拓扑结构的分岔线路,并且用户端口距离30/36模式双工器COM端口很近时,可以省去图2中的插片5。因为当选择65/87模式时,用户端口到30/36模式双工器COM端口的这段线路很短,引起的信号反射很小,对用户端口到65/87模式双工器COM端口的这段线路信号完整性影响可以忽略。The preferred embodiment also includes another form of hardware in FIG. When the CATV port, the 30/36 mode duplexer HP port, and the 65/87 mode duplexer HP port form a T-type topology on the printed circuit board, the 65/87 mode duplexer HP port is the T-type topology. When the structure is branched, and the CATV port is very close to the 30/36 mode duplexer HP port, the blade 1 in Fig. 2 can be omitted. Because when the 65/87 mode is selected, the line from the CATV port to the 30/36 mode duplexer HP port is very short, causing a small signal reflection, which is the CATV port to the 65/87 mode duplexer HP port. Segment line signal integrity effects can be ignored. Similarly, when the EOC chip port, the 30/36 mode duplexer LP port, and the 65/87 mode duplexer LP port form a T-type topology on the printed circuit board, the 65/87 mode duplexer LP port is The patch 2 of the T-topology can be omitted when the EOC chip is close to the 30/36 mode duplexer LP port. Because when the 65/87 mode is selected, the line from the EOC chip port to the 30/36 mode duplexer LP port is very short, causing small signal reflections to the EOC chip port to the 65/87 mode duplexer LP port. The signal integrity impact of this line can be ignored. Similarly, when the user port, 30/36 mode duplexer COM port, and 65/87 mode duplexer COM port form a T on the printed circuit boardType topology, the 65/87 mode duplexer COM port is the branching line of the T-type topology, and the user port is close to the 30/36 mode duplexer COM port, the insert in Figure 2 can be omitted. 5. Because when the 65/87 mode is selected, the line from the user port to the 30/36 mode duplexer COM port is very short, causing a small signal reflection, which is the user port to the 65/87 mode duplexer COM port. Segment line signal integrity effects can be ignored.
本较佳实施方式还包括图4中的另一种硬件形式。该种形式适用于如下情况:当CATV端口、30/36模式双工器HP端口、和65/87模式双工器HP端口在印刷电路板上形成一个T型拓扑结构,30/36模式双工器HP端口是该T型拓扑结构的分岔线路,并且CATV端口距离65/87模式双工器HP端口很近时,可以省去图2中的插片3。当EOC芯片端口、30/36模式双工器LP端口、和65/87模式双工器LP端口在印刷电路板上形成一个T型拓扑结构,30/36模式双工器LP端口是该T型拓扑结构的分岔线路,并且EOC芯片端口距离65/87模式双工器LP端口很近时,可以省去图2中的插片4。当用户端口、30/36模式双工器COM端口、和65/87模式双工器COM端口在印刷电路板上形成一个T型拓扑结构,30/36模式双工器COM端口是该T型拓扑结构的分岔线路,并且用户端口距离65/87模式双工器COM端口很近时,可以省去图2中的插片6。The preferred embodiment also includes another form of hardware in FIG. This form is suitable for situations where the CATV port, the 30/36 mode duplexer HP port, and the 65/87 mode duplexer HP port form a T-top topology on the printed circuit board, 30/36 mode duplex The HP port is the branching line of the T-type topology, and when the CATV port is close to the 65/87 mode duplexer HP port, the tab 3 in FIG. 2 can be omitted. When the EOC chip port, the 30/36 mode duplexer LP port, and the 65/87 mode duplexer LP port form a T-type topology on the printed circuit board, the 30/36 mode duplexer LP port is the T-type. When the topology is branched, and the EOC chip port is close to the 65/87 mode duplexer LP port, the tab 4 in Figure 2 can be omitted. When the user port, 30/36 mode duplexer COM port, and 65/87 mode duplexer COM port form a T-type topology on the printed circuit board, the 30/36 mode duplexer COM port is the T-type topology. When the structure is branched, and the user port is close to the 65/87 mode duplexer COM port, the tab 6 in Fig. 2 can be omitted.
本较佳实施方式还包括图5中的另一种通用形式,也包括和该形式类似结构的硬件设计。该形式针对于未来可能的其他有线电视网络而设计,根据不同的情况增加其他模式的双工器。The preferred embodiment also includes another general form in Figure 5, as well as a hardware design similar to that of the form. This form is designed for other cable TV networks that may be possible in the future, adding other modes of duplexers depending on the situation.
采用本较佳实施方式所述方法,使用软、硬件相结合的方法,能同时规避了以前EOC设备在CMTS网络中上行频带冲突,和在非CMTS网络中带宽不够,传送速率达不到300Mbps的问题。达到了在同一设备中灵活适应两种不同有线电视网络的效果。并给出一种通用形式,以适应未来新出现的网络情况。By adopting the method of the preferred embodiment, using a combination of software and hardware, the uplink frequency band conflict of the previous EOC device in the CMTS network can be avoided at the same time, and the bandwidth is insufficient in the non-CMTS network, and the transmission rate is less than 300 Mbps. problem. Achieve the flexibility to adapt to two different cable TV networks in the same device. And give a general form to adapt to the emerging network situation in the future.
下面结合附图对技术方案的实际实施作详细描述:The actual implementation of the technical solution will be described in detail below with reference to the accompanying drawings:
本较佳实施方式所述的基本方法如图2所示,硬件包括以下部分:EOC芯片、30/36模式双工器、65/87模式双工器。The basic method described in the preferred embodiment is shown in FIG. 2. The hardware includes the following parts: an EOC chip, a 30/36 mode duplexer, and a 65/87 mode duplexer.
还包括:6个插片。Also included: 6 inserts.
图2示出了本较佳实施方式EOC设备的模式切换方法的基本硬件框图。2 is a basic hardware block diagram of a mode switching method of the EOC device of the preferred embodiment.
本较佳实施方式所述方法的硬件,具有以下部分:The hardware of the method of the preferred embodiment has the following parts:
1、设备可区分为数字电路部分和模拟电路部分。数字部分由EOC芯片组成,模拟部分由双工器和插片组成。1. The device can be divided into a digital circuit part and an analog circuit part. The digital part consists of an EOC chip, and the analog part consists of a duplexer and a blade.
2、EOC芯片负责以太网协议和EOC协议之间的转换,满足IEEE 1901和HomePlug AV标准。低频EOC数据信号经过芯片组内的模拟前端部分到达插片。2. The EOC chip is responsible for the conversion between the Ethernet protocol and the EOC protocol, and satisfies the IEEE 1901 and HomePlug AV standards. The low frequency EOC data signal passes through the analog front end portion of the chipset to the insert.
3、插片是选择开关。当插片插入插座时,两端的信号连通,相当于短路。当插片拔出插座时,两端的信号断开,相当于开路。插片1连接CATV端口和30/36模式双工器的高通接口。插片3连接CATV端口和65/87模式双工器的高通接口。插片2连接EOC芯片的低频EOC数据信号和30/36模式双工器的低通接口。插片4连接EOC芯片组的低频EOC数据信号和65/87模式双工器的低通接口。插片5连接用户端口和30/36模式双工器的混合接口。插片6连接用户端口和65/87模式双工器的低通接口。同一时刻只能选择插一组插片,即选择30/36模式(只插1、3、5插片)或者65/87模式(只插2、4、6插片)。3. The insert is a selector switch. When the blade is inserted into the socket, the signals at both ends are connected, which is equivalent to a short circuit. When the tab is pulled out of the socket, the signals at both ends are disconnected, which is equivalent to an open circuit. Insert 1 connects the high-pass interface of the CATV port and the 30/36 mode duplexer. The tab 3 is connected to the Qualcomm interface of the CATV port and the 65/87 mode duplexer. The tab 2 connects the low frequency EOC data signal of the EOC chip to the low pass interface of the 30/36 mode duplexer. The tab 4 connects the low frequency EOC data signal of the EOC chipset to the low pass interface of the 65/87 mode duplexer. The blade 5 is connected to the hybrid interface of the user port and the 30/36 mode duplexer. The tab 6 connects the user port to the low-pass interface of the 65/87 mode duplexer. At the same time, only one set of inserts can be selected, that is, 30/36 mode (only insert 1, 3, 5 inserts) or 65/87 mode (only insert 2, 4, 6 inserts).
4、双工器的作用是把低通LP接口的低频EOC数据信号和高通HP接口的高频有线电视信号混合到用户COM接口。另一方面把用户COM接口的混合信号通过内部高通滤波器把输出高频有线电视信号到高通HP接口,通过内部低通滤波器把低频EOC数据信号输出到低通LP接口。30/36模式双工器的低通频带是0MHz~30MHz,高通频带是36MHz~1GHz,隔离频带是30MHz~36MHz。65/87模式双工器的低通频带是0MHz~65MHz,高通频带是87MHz~1GHz,隔离频带是65MHz~87MHz。4. The function of the duplexer is to mix the low-frequency EOC data signal of the low-pass LP interface and the high-frequency cable TV signal of the Qualcomm HP interface to the user COM interface. On the other hand, the mixed signal of the user COM interface is passed through the internal high-pass filter to output the high-frequency cable signal to the Qualcomm HP interface, and the low-frequency EOC data signal is output to the low-pass LP interface through the internal low-pass filter. The low-pass band of the 30/36 mode duplexer is 0 MHz to 30 MHz, the high-pass band is 36 MHz to 1 GHz, and the isolation band is 30 MHz to 36 MHz. The low pass band of the 65/87 mode duplexer is 0 MHz to 65 MHz, the high pass band is 87 MHz to 1 GHz, and the isolated band is 65 MHz to 87 MHz.
根据图6所示,本较佳实施方式所述EOC设备的模式切换的基本实现方法如下:According to FIG. 6, the basic implementation method of mode switching of the EOC device according to the preferred embodiment is as follows:
第一步:判断EOC设备是否用在CMTS网络。如果是CMTS网络则跳过第二步执行第三步。Step 1: Determine if the EOC device is used in the CMTS network. If it is a CMTS network, skip the second step and perform the third step.
第二步:不是CMTS网络情况下的操作。本步骤又可以包括下列步骤:Step 2: It is not an operation in the case of a CMTS network. This step can further include the following steps:
1、拔出插片1、2、5,插入插片3、4、6,选择65/87模式双工器。1. Pull out the inserts 1, 2, and 5, insert the inserts 3, 4, and 6. Select the 65/87 mode duplexer.
2、EOC芯片初试化工作频段为7.5~65MHz。2. The initial working frequency band of the EOC chip is 7.5-65MHz.
3、EOC设备工作在非CMTS环境下。此时的设备数据传送速率可达到理论上的最大值300Mbps。3. The EOC equipment works in a non-CMTS environment. The device data transfer rate at this time can reach a theoretical maximum of 300 Mbps.
第三步:是CMTS网络情况下的操作。本步骤又可以包括下列步骤:The third step: the operation in the case of the CMTS network. This step can further include the following steps:
1、拔出插片3、4、6,插入插片1、2、5,选择30/36模式双工器。此时,频率30MHz以上的带外杂散电平将被双工器内的低通滤波电路过滤掉。1. Pull out the inserts 3, 4, and 6, insert the inserts 1, 2, and 5, and select the 30/36 mode duplexer. At this time, the out-of-band spurious level above 30 MHz will be filtered by the low-pass filter circuit in the duplexer.
2、EOC芯片初试化工作频段为7.5~65MHz。2. The initial working frequency band of the EOC chip is 7.5-65MHz.
3、软件修改配置,改EOC芯片工作频段为7.5~30MHz。3. The software is modified and configured to change the operating frequency of the EOC chip to 7.5 to 30 MHz.
4、EOC设备工作在CMTS环境下。4. The EOC equipment works in the CMTS environment.
同样地,图3~5所示的硬件框图也可参照上面软硬件相结合的模式切换基本方法实现EOC设备在不同环境下的设置工作。只需要在CMTS的网络情况下修改EOC芯片工作频段为7.5~30MHz。在同一时刻,一路用户端口只能选择一组模式的双工器和插片,以避免线路分岔对在用射频信号反射的影响。Similarly, the hardware block diagrams shown in FIGS. 3 to 5 can also refer to the basic method of mode switching combined with the above hardware and software to realize the setting work of the EOC device in different environments. It is only necessary to modify the working frequency band of the EOC chip to be 7.5 to 30 MHz in the case of the network of the CMTS. At the same time, one user port can only select one mode of duplexer and insert to avoid the influence of line branching on the reflection of the RF signal in use.
综合以上所述,本较佳实施方式在传统单一模式EOC设备的基础上,给出了一种软硬件结合的方法,在单一设备上实现了适应CMTS网络和非CMTS网络的功能。该方法可以解决CMTS网络中30MHz以上带外杂散大的问题,又可同时解决非CMTS网络中传送速率低的问题,大大扩大了设备的适用范围和灵活性。并且给出了一种通用的多模式双工器的选择方法,以满足未来EOC设备扩展的需要。In summary, the preferred embodiment provides a method of combining hardware and software based on the traditional single mode EOC device, and implements the functions of adapting to the CMTS network and the non-CMTS network on a single device. The method can solve the problem of large out-of-band spurs above 30 MHz in the CMTS network, and simultaneously solve the problem of low transmission rate in the non-CMTS network, and greatly expands the applicable scope and flexibility of the device. And a general multi-mode duplexer selection method is given to meet the needs of future EOC equipment expansion.
图7表示本发明实施例提供的一种信号混合输出装置的结构框图,参照图7,本发明实施例还提供一种信号混合输出装置,同轴电缆传输EOC设备输出的EOC协议的低频数据信号和有线电视网CATV口输出的高频信号能够通过双工器混合输出到用户端口,所述EOC设备能够运行在至少两个网络中的任一网络,所述EOC设备具备至少两个工作频段,与所述至少两个网络的工作频段存在设定的第一对应关系,所述信号混合输出装置包括:FIG. 7 is a structural block diagram of a signal mixing output device according to an embodiment of the present invention. Referring to FIG. 7, an embodiment of the present invention further provides a signal mixing output device for transmitting a low frequency data signal of an EOC protocol output by an EOC device. The high frequency signal outputted by the CATV port of the cable television network can be output to the user port through a duplexer, and the EOC device can operate in any of at least two networks, the EOC device having at least two working frequency bands. There is a set first correspondence relationship with the working frequency bands of the at least two networks, and the signal mixed output device includes:
第一选择模块701,设置为根据所述EOC设备当前运行在的所述至少两个网络中的第一网络的工作频段和所述第一对应关系,从所述至少两个工作频段中选择出第一工作频段;Thefirst selection module 701 is configured to select, according to the working frequency band of the first network of the at least two networks in which the EOC device is currently running, and the first correspondence relationship, select from the at least two working frequency bands First working frequency band;
配置模块702,设置为将所述EOC设备的工作频段配置为所述第一工作频段;Theconfiguration module 702 is configured to configure the working frequency band of the EOC device as the first workFrequency band
输出模块703,设置为:将所述EOC设备输出的EOC协议的低频数据信号和有线电视网CATV口输出的高频信号通过双工器混合输出到用户端口。Theoutput module 703 is configured to: output the low frequency data signal of the EOC protocol output by the EOC device and the high frequency signal output by the CATV port of the cable television network to the user port through the duplexer.
可见,通过上述方式,实现了根据EOC设备所在网络的工作频段来对EOC设备的工作频段进行灵活配置,从而使EOC设备能够适应其所在的不同网络环境。It can be seen that, by the above manner, the working frequency band of the EOC device is flexibly configured according to the working frequency band of the network where the EOC device is located, so that the EOC device can adapt to different network environments in which it is located.
其中,可以有:Among them, there can be:
所述至少两个工作频段中的每个工作频段与其在所述对应关系中对应的工作频段不冲突,所述第一工作频段与所述至少两个网络中第二网络的工作频段冲突。Each of the at least two working frequency bands does not conflict with the corresponding working frequency band in the corresponding relationship, and the first working frequency band conflicts with the working frequency band of the second network of the at least two networks.
还可以有:Also have:
所述第二网络的工作频段在所述对应关系中对应第二工作频段,所述第二工作频段的带宽小于所述第一工作频段的带宽。The working frequency band of the second network corresponds to the second working frequency band in the corresponding relationship, and the bandwidth of the second working frequency band is smaller than the bandwidth of the first working frequency band.
本发明实施例中,所述双工器的低通截止频率不小于所述至少两个工作频段中的最大频率。In the embodiment of the present invention, the low pass cutoff frequency of the duplexer is not less than the maximum frequency of the at least two working frequency bands.
本发明实施例中,可以有:In the embodiment of the present invention, there may be:
所述低频数据信号和所述高频信号具体能够通过至少两个双工器中的任一双工器混合输出到用户端口,所述至少两个工作频段与所述至少两个双工器存在设定的第二对应关系,所述任一双工器的低通截止频率与所述任一双工器在所述第二对应关系中对应的工作频段的最高频率相同,所述信号混合输出装置还包括:The low frequency data signal and the high frequency signal are specifically capable of being mixed and outputted to a user port by any one of at least two duplexers, the at least two working frequency bands and the at least two duplexers being present a second corresponding relationship, the low-pass cutoff frequency of any duplexer is the same as the highest frequency of the corresponding working frequency band of the duplexer in the second correspondence, the signal mixed output The device also includes:
第二选择模块,用于根据所述第一网络的工作频段和所述第二对应关系,从所述至少两个双工器中选择出第一双工器;a second selection module, configured to select a first duplexer from the at least two duplexers according to the working frequency band of the first network and the second corresponding relationship;
启动模块,用于启动所述第一双工器,使得所述EOC设备输出的EOC协议的第一低频数据信号和有线电视网CATV口输出的第一高频信号能够通过所述第一双工器混合输出到所述用户端口。Activating module, configured to enable the first duplexer to enable the first low frequency data signal of the EOC protocol output by the EOC device and the first high frequency signal output by the CATV port of the cable television network to pass the first duplex The mixer mixes output to the user port.
本领域普通技术人员可以理解上述实施例的全部或部分步骤可以使用计算机程序流程来实现,所述计算机程序可以存储于一计算机可读存储介质中,所述计算机程序在相应的硬件平台上(如系统、设备、装置、器件等)执行,在执行时,包括方法实施例的步骤之一或其组合。Those of ordinary skill in the art will appreciate that all or a portion of the steps of the above-described embodiments can be implemented using a computer program flow, which can be stored in a computer readable storage medium.The computer program is executed on a corresponding hardware platform (eg, system, device, device, device, etc.), and when executed, includes one or a combination of the steps of the method embodiments.
可选地,上述实施例的全部或部分步骤也可以使用集成电路来实现,这些步骤可以被分别制作成一个个集成电路模块,或者将它们中的多个模块或步骤制作成单个集成电路模块来实现。这样,本发明不限制于任何特定的硬件和软件结合。Alternatively, all or part of the steps of the above embodiments may also be implemented by using an integrated circuit. These steps may be separately fabricated into individual integrated circuit modules, or multiple modules or steps may be fabricated into a single integrated circuit module. achieve. Thus, the invention is not limited to any specific combination of hardware and software.
上述实施例中的各装置/功能模块/功能单元可以采用通用的计算装置来实现,它们可以集中在单个的计算装置上,也可以分布在多个计算装置所组成的网络上。The devices/function modules/functional units in the above embodiments may be implemented by a general-purpose computing device, which may be centralized on a single computing device or distributed over a network of multiple computing devices.
上述实施例中的各装置/功能模块/功能单元以软件功能模块的形式实现并作为独立的产品销售或使用时,可以存储在一个计算机可读取存储介质中。上述提到的计算机可读取存储介质可以是只读存储器,磁盘或光盘等。When each device/function module/functional unit in the above embodiment is implemented in the form of a software function module and sold or used as a stand-alone product, it can be stored in a computer readable storage medium. The above mentioned computer readable storage medium may be a read only memory, a magnetic disk or an optical disk or the like.
工业实用性Industrial applicability本发明实施例实现了根据EOC设备所在网络的工作频段来对EOC设备的工作频段进行灵活配置,从而使EOC设备能够适应其所在的不同网络环境。The embodiment of the invention implements flexible configuration of the working frequency band of the EOC device according to the working frequency band of the network where the EOC device is located, so that the EOC device can adapt to different network environments in which it is located.