WO2017063180A1 - 一种电力线载波通信性能检测装置 - Google Patents
一种电力线载波通信性能检测装置 Download PDFInfo
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- WO2017063180A1 WO2017063180A1 PCT/CN2015/092052 CN2015092052W WO2017063180A1 WO 2017063180 A1 WO2017063180 A1 WO 2017063180A1 CN 2015092052 W CN2015092052 W CN 2015092052W WO 2017063180 A1 WO2017063180 A1 WO 2017063180A1
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B3/00—Line transmission systems
- H04B3/02—Details
- H04B3/46—Monitoring; Testing
- H04B3/48—Testing attenuation
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B3/00—Line transmission systems
- H04B3/54—Systems for transmission via power distribution lines
Definitions
- the invention belongs to the technical field of power line carrier communication, and in particular relates to a power line carrier communication performance detecting device.
- the power line carrier communication technology is a technology for data communication through a power supply line of a commercial power supply.
- the mains voltage is outside the maximum safe input voltage range of many measuring instruments and far beyond the safe voltage range that the human body can withstand. Therefore, it is easy to bring safety hazards to the measuring instrument and the operator.
- the power line carrier communication frequency range currently allowed in China is 3KHZ-500KHz, and the frequency range is wide. Domestic power line carrier communication manufacturers select the communication frequency point suitable for their own in this frequency range.
- the noise on the mains grid and the impedance variation caused by the time-varying of the network topology will affect the power line carrier communication. Therefore, when evaluating the performance of the power line carrier communication, it is desirable to enable the carrier signal. It is separated from the power supply line for analysis or measurement, and it is desirable to be able to judge the anti-attenuation capability of the carrier signal under various loads.
- the domestic power line carrier communication performance detecting device does not completely separate the mains voltage from the carrier signal, and there are hidden dangers in the safety of the inspectors and equipment.
- the domestic power line carrier communication performance detecting devices do not have a completely symmetrical structure, and the noise of the carrier signal in the communication path is inconsistent, which may affect the detection result of the communication performance.
- the technical problem to be solved by the present invention is to provide a power line carrier communication performance detecting device, which effectively expands the applicable range of the detecting device, improves the safety performance of the detecting device, and improves the accuracy of the detecting device.
- the present invention is implemented by the present invention, a power line carrier communication performance detecting apparatus, including a first detection bit for placing a first carrier device, a first signal coupler, a signal attenuation device, a second signal coupler, and a second a second detection bit of the two carrier device;
- the first detection bit is respectively connected to the main power and the first signal coupler, and is configured to add a carrier signal to the input commercial power by the first carrier device and output the signal to the first signal coupler, or And configured to receive and detect, by the first carrier device, an attenuation signal sent by the first signal coupler;
- the first signal coupler is connected to the signal attenuating device, configured to isolate the mains and carrier signals from a commercial power of the carrier signal input by the first carrier device, and output the isolated carrier signal to
- the signal attenuating device is configured to receive the attenuated carrier signal sent by the signal attenuating device and output the signal to the first carrier device;
- the signal attenuating device is coupled to the second signal coupler to attenuate the isolated carrier signal received from the first signal coupler and transmit the attenuated carrier signal to the second signal coupling Or attenuating the isolated carrier signal received from the second signal coupler and transmitting the attenuated carrier signal to the first signal coupler;
- the second signal coupler is coupled to the second detection bit, and transmits the attenuated carrier signal received from the signal attenuation device to the second carrier device, or input from the second carrier device Separating the mains and carrier signals from the commercial power of the carrier signal, and outputting the isolated carrier signals to the signal attenuation device;
- the second detection bit is connected to the mains for receiving and detecting the attenuated carrier signal sent by the second signal coupler by the second carrier device, or for being used by the second carrier device A carrier signal is added to the input commercial power and output to the second signal coupler.
- the power line carrier communication performance detecting apparatus further includes a first mains processing module and/or a second mains processing module for processing the mains, the first mains processing module input end and the mains Connected, the output end is connected to the first detection bit, the input end of the second mains processing module is connected to the mains, and the output end is connected to the second detection bit.
- the first mains processing module includes a first alternating current regulated power supply, a first power isolator, and a first signal filter;
- the first alternating current regulated power input terminal is connected to the mains, and the output end is a first power isolator connection for filtering out voltage fluctuations of the input mains and outputting to an input of the first power isolator;
- an output of the first power isolator and the first signal filter Input connection for further isolating the commercial power that filters out voltage fluctuations, and transmitting the isolated mains to the input end of the first signal filter;
- the output of the first signal filter is The first detection bit is connected to filter the interference signal in the isolated mains, and transmit the commercial power of the interference signal to the first carrier device.
- the second mains processing module includes a second AC regulated power supply, a second power isolator, and a second signal filter; the second AC regulated power input is connected to the mains, and the output is connected to the second a power isolator connection for filtering out voltage fluctuations of the input mains and outputting to an input of the second power isolator; an output of the second power isolator and an input of the second signal filter a connection for further isolating a commercial power source that filters out voltage fluctuations, and transmitting the isolated mains to an input of the second signal filter; an output of the second signal filter and the And a second detection bit connection, configured to filter the interference signal in the isolated mains, and transmit the commercial power of the interference signal to the second carrier device.
- the power line carrier communication performance detecting apparatus further includes a first carrier signal detecting module and/or a second carrier signal detecting module for detecting a carrier signal quality, the first carrier signal detecting module and the first signal The coupler is connected, and the second carrier signal detecting module is connected to the second signal coupler.
- the first carrier signal detecting module includes a first load network, and the first load network is connected to the first signal coupler for simulating access or disconnection of various loads on an actual power grid. Situation, detecting the anti-load communication capability of the carrier signal under different load conditions;
- the second carrier signal detecting module includes a second load network, and the second load network is connected to the second signal coupler for simulating the access or disconnection of various loads on the actual power grid, and detecting The carrier signal is resistant to load communication under different load conditions.
- the first carrier signal detecting module further includes a first spectrum analyzer, and the first spectrum analyzer is connected to the first signal coupler for analyzing frequency domain characteristics of the carrier signal, and detecting Communication performance of carrier signals;
- the second carrier signal detecting module further includes a second spectrum analyzer, and the second spectrum analyzer is connected to the second signal coupler for analyzing a frequency domain characteristic of the carrier signal, and detecting the carrier signal Communication performance
- the first carrier signal detecting module further includes a first oscilloscope, and the first oscilloscope is connected to the first signal coupler, configured to analyze time domain characteristics of the carrier signal, and detect carrier signal communication. performance;
- the second carrier signal detecting module further includes a second oscilloscope, and the second oscilloscope is connected to the second signal coupler for analyzing a time domain characteristic of the carrier signal to detect a communication performance of the carrier signal.
- the present invention has the beneficial effects that the power line carrier communication performance detecting apparatus according to the present invention uses a signal coupler to completely separate the main power from the carrier signal, separately detects the carrier signal, and thus is used to attenuate the signal of the carrier signal.
- the attenuation device can adopt a pure resistance structure. Since the resistance belongs to a linear device and is not affected by the frequency variation, it can be applied to the detection of the carrier signal in the frequency range of 3KHz-1 GHz, and the application range of the detection device is expanded.
- the invention uses the signal coupler to completely separate the mains and the carrier signal, avoids detecting the carrier signal under the mains voltage, and improves the safety performance of the detecting device.
- the power line carrier communication performance detecting device of the present invention is designed to adopt a completely symmetrical structure, so as to avoid interference and/or noise on the two-carrier device described in the present invention due to structural asymmetry of the detecting device, thereby making measurement results. Inaccurate, thus improving the accuracy of the detection device.
- FIG. 1 is a schematic structural diagram of a power line carrier communication performance detecting apparatus according to an embodiment of the present invention.
- the power line carrier communication performance detecting apparatus includes a first detection bit for placing the first carrier device 1, a first signal coupler 2, a signal attenuation device 3, and a second signal coupler 4. And a second detection bit for placing the second carrier device 5.
- the first mains processing module 6, the first carrier signal detecting module 7, the second mains processing module 8, and the second carrier signal detecting module 9 may be further included.
- the first mains processing module 6 includes a first AC regulated power supply 10, a first power isolator 11, and a first signal filter 12;
- the first carrier signal detecting module 7 includes The first load network 13, the first spectrum analyzer 14, and the first oscilloscope 15.
- the second mains processing module 8 includes a second AC regulated power supply 16, a second power isolator 17, and a second signal filter 18; the second carrier signal detecting module 9 includes a second load network 19, and a second The spectrum analyzer 20 and the second oscilloscope 21.
- the power line carrier communication performance detecting apparatus implements the performance detection of the carrier equipment through the uplink and downlink communication paths, and the detection principles of the two paths are as follows:
- the first AC regulated power supply 10 filters out the voltage fluctuation of the input mains and outputs it to the first power isolator 11; the first power isolator 11 further isolates the commercial power that filters out the voltage fluctuation, and the isolated mains Transmitting to the first signal filter 12; the first signal filter 12 filters out the interference signal in the isolated mains, and transmits the commercial power of the interference signal to the first carrier device 1; the first carrier device 1 A carrier signal is added to the commercial power of the interference signal and output to the first signal coupler 2; the first signal coupler 2 is used to isolate the mains and carrier signals from the commercial power added to the carrier signal, and is isolated The carrier signal is output to the signal attenuating device 3; the signal attenuating device 3 attenuates the received isolated carrier signal, and transmits the attenuated carrier signal to the second signal coupler 4; the second signal coupler 4 receives The attenuated carrier signal is transmitted to the second carrier device 5; the second carrier device 5 is configured to receive and detect the attenuated carrier signal,
- the first load network 13 is used to simulate the access or disconnection of various loads on the actual power grid, and detects the anti-load communication capability of the carrier signal under different load conditions; the first spectrum analyzer 14 is used for the frequency of the carrier signal. The domain characteristics are analyzed, and the first oscilloscope 15 is configured to analyze the time domain characteristics of the carrier signal and detect the communication performance of the carrier signal.
- the second AC regulated power supply 16 filters out the voltage fluctuation of the input mains and outputs it to the second power isolator 17; the second power isolator 17 further isolates the commercial power that filters out the voltage fluctuation, and the isolated mains Transmitted to the second signal filter 18; the second signal filter 18 filters out the interference signal in the isolated mains, and transmits the mains filtered out of the interference signal to the second carrier device 5; the second carrier device 5 A carrier signal is added to the commercial power of the interference signal and output to the second signal coupler 4; the second signal coupler 4 is used to isolate the mains and carrier signals from the commercial power added to the carrier signal, and is isolated The carrier signal is output to the signal attenuating device 3; the signal attenuating device 3 attenuates the isolated carrier signal, and transmits the attenuated carrier signal to the first signal coupler 2; the first signal coupler 2 will attenuate the carrier The signal is transmitted to the first carrier device 1; the first carrier device 1 is configured to receive and detect the attenuated carrier signal
- the second load network 19 is used to simulate the access or disconnection of various loads on the actual power grid, and detects the anti-load communication capability of the carrier signal under different load conditions; the second spectrum analyzer 20 is used for the frequency of the carrier signal. The domain characteristics are analyzed, and the second oscilloscope 21 is configured to analyze the time domain characteristics of the carrier signal and detect the communication performance of the carrier signal.
- the first detecting bit and the second detecting bit may be configured as a card seat structure, and the card seat is provided with an electrode structure connected to the first and second carrier devices, and only needs to be the first
- the second carrier device can be placed in the card holder.
- the first detection bit and the second detection bit can also be designed into other structural forms, which are not limited.
- the foregoing detection device can support two carrier devices at the same time, as long as two carrier devices to be tested are respectively placed in the first detection bit and the second detection bit, and the uplink communication path and the downlink communication described above are required. Path implementation detection. It is also possible to support the case of detecting only a single carrier device. In this case, the carrier device to be tested needs to be placed in one of the first detection bit and the second detection bit, and the other detection bit is placed in another carrier device. The auxiliary test only needs to be detected by the uplink communication path or the downlink communication path described above.
- the detecting device of the present invention adopts a completely symmetrical structure, the distance between the carrier device that adds the carrier signal in the commercial power and the carrier device that receives and detects the carrier signal and the device access to the mains position is solved in the prior art. Differently, the interference and/or noise generated on the two-carrier device are inconsistent, which further affects the problem of communication performance detection.
Abstract
本发明属于电力线载波通信技术领域，尤其涉及一种电力线载波通信性能检测装置。所述电力线载波通信性能检测装置包括用于放置第一载波设备的第一检测位、第一信号耦合器、信号衰减装置、第二信号耦合器、用于放置第二载波设备的第二检测位。本发明所述的电力线载波通信性能检测装置能适用于3KHz-1GHz频率范围内的载波信号的检测，能将市电与载波信号完全分离，整个电力线载波通信性能检测装置的设计采用完全对称结构，适用范围广、安全性高、精准度高。
Description
本发明属于电力线载波通信技术领域，尤其涉及一种电力线载波通信性能检测装置。
电力线载波通信技术是一种通过市电的供电线路来进行数据通信的技术。市电电压超出许多测量仪器的最大安全输入电压范围，也远超出人体可承受的安全电压范围。因此，容易给测量仪器以及操作人员带来安全隐患。另一方面，当前我国允许的电力线载波通信频率范围3KHZ-500KHz，频率范围较宽，国内各电力线载波通信厂家都在该频率范围内选择适合自己的通信频点。
在实际的电力线载波通信系统中，市电电网上的噪声、网络拓扑的时变性带来的阻抗变化，都会对电力线载波通信带来影响，因此在评估电力线载波通信性能时，希望将载波信号能够从供电线路上分离出来分析或测量，同时希望能够评判出载波信号在各种负载下的抗衰减能力。
当前电力线载波通信性能检测装置存在的问题，主要表现在以下几个方面：
1、当前国内各电力线载波通信厂家都会有自己的电力线载波通信性能检测装置，但都是基于各自的载波通信频点，根据自己的频点来设计固定的信号衰减网络，无法满足其他频点载波信号性能检测的需要。
2、当前国内各电力线载波通信性能检测装置没有将市电电压与载波信号完全分离开，检测人员和设备的安全性方面会存在隐患。
3、当前国内各电力线载波通信性能检测装置不具有完全对称结构，由于载波信号在通信路径上的噪声不一致，会影响通信性能的检测结果。
所以，一种安全、通用、精准的电力线载波通信性能检测装置是非常有必要的。
本发明所要解决的技术问题在于提供一种电力线载波通信性能检测装置，有效地扩大检测装置的适用范围、提高检测装置的安全性能、提升检测装置的精准度。
本发明是这样实现的，一种电力线载波通信性能检测装置，包括用于放置第一载波设备的第一检测位、第一信号耦合器、信号衰减装置、第二信号耦合器、用于放置第二载波设备的第二检测位；
所述第一检测位分别与市电、所述第一信号耦合器连接，用于由所述第一载波设备在输入的市电中加入载波信号并输出到所述第一信号耦合器，或者用于由所述第一载波设备接收并检测所述第一信号耦合器发送的衰减信号；
所述第一信号耦合器与所述信号衰减装置连接，用于从所述第一载波设备输入的加入载波信号的市电中隔离该市电与载波信号，并将被隔离的载波信号输出到所述信号衰减装置，或者用于接收所述信号衰减装置发送的被衰减的载波信号并输出到所述第一载波设备；
所述信号衰减装置与所述第二信号耦合器连接，将从所述第一信号耦合器接收到的被隔离的载波信号进行衰减，并将衰减后的载波信号传输到所述第二信号耦合器，或者将从所述第二信号耦合器接收到的被隔离的载波信号进行衰减，并将衰减后的载波信号传输到所述第一信号耦合器；
所述第二信号耦合器与所述第二检测位连接，将从所述信号衰减装置接收到的被衰减的载波信号传输到所述第二载波设备，或者将从所述第二载波设备输入的加入载波信号的市电中隔离该市电与载波信号，并将被隔离的载波信号输出到所述信号衰减装置；
所述第二检测位与市电相连接，用于由所述第二载波设备接收并检测所述第二信号耦合器发送的被衰减的载波信号，或者用于由所述第二载波设备在输入的市电中加入载波信号并输出到所述第二信号耦合器。
进一步地，所述电力线载波通信性能检测装置还包括用于对市电进行处理的第一市电处理模块和/或第二市电处理模块，所述第一市电处理模块输入端与市电连接，输出端与所述第一检测位连接，所述第二市电处理模块输入端与市电连接，输出端与所述第二检测位连接。
进一步地，所述第一市电处理模块包括第一交流稳压电源、第一电源隔离器、第一信号滤波器；所述第一交流稳压电源输入端与市电连接，输出端与所述第一电源隔离器连接，用于滤除输入市电的电压波动并输出到所述第一电源隔离器的输入端；所述第一电源隔离器的输出端与所述第一信号滤波器的输入端连接，用于对滤除电压波动的市电进行进一步隔离，并将被隔离的市电传输到所述第一信号滤波器的输入端；所述第一信号滤波器的输出端与所述第一检测位连接，用于将被隔离市电中的干扰信号进行滤除，并将滤除干扰信号的市电传输到所述第一载波设备。
所述第二市电处理模块包括第二交流稳压电源、第二电源隔离器、第二信号滤波器；所述第二交流稳压电源输入端与市电连接，输出端与所述第二电源隔离器连接，用于滤除输入市电的电压波动并输出到所述第二电源隔离器的输入端；所述第二电源隔离器的输出端与所述第二信号滤波器的输入端连接，用于对滤除电压波动的市电进行进一步隔离，并将被隔离的市电传输到所述第二信号滤波器的输入端；所述第二信号滤波器的输出端与所述第二检测位连接，用于将被隔离市电中的干扰信号进行滤除，并将滤除干扰信号的市电传输到所述第二载波设备。
进一步地，所述电力线载波通信性能检测装置还包括用于检测载波信号质量的第一载波信号检测模块和/或第二载波信号检测模块，所述第一载波信号检测模块与所述第一信号耦合器相连接，所述第二载波信号检测模块与所述第二信号耦合器相连接。
进一步地，所述第一载波信号检测模块包括第一负载网络，所述第一负载网络与所述第一信号耦合器相连接，用于模拟实际电网上各种负载的接入或断开的情况，检测载波信号在不同负载条件下的抗负载通讯能力；
所述第二载波信号检测模块包括第二负载网络，所述第二负载网络与所述第二信号耦合器相连接，用于模拟实际电网上各种负载的接入或断开的情况，检测载波信号在不同负载条件下的抗负载通讯能力。
进一步地，所述第一载波信号检测模块还包括第一频谱分析仪，所述第一频谱分析仪与所述第一信号耦合器相连接，用于对载波信号的频域特性进行分析，检测载波信号的通信性能；
所述第二载波信号检测模块还包括第二频谱分析仪，所述第二频谱分析仪与所述第二信号耦合器相连接，用于对载波信号的频域特性进行分析，检测载波信号的通信性能；
进一步地，所述第一载波信号检测模块还包括第一示波器，所述第一示波器与所述第一信号耦合器相连接，用于对载波信号的时域特性进行分析，检测载波信号的通信性能；
所述第二载波信号检测模块还包括第二示波器，所述第二示波器与所述第二信号耦合器相连接，用于对载波信号的时域特性进行分析，检测载波信号的通信性能。
本发明与现有技术相比，有益效果在于本发明所述的电力线载波通信性能检测装置使用信号耦合器，将市电与载波信号完全分离，单独检测载波信号，因此用于衰减载波信号的信号衰减装置可采用纯电阻结构，由于电阻属于线性器件，不受频率变化的影响，所以能适用于3KHz-1GHz频率范围内的载波信号的检测，扩大了检测装置的适用范围。本发明使用信号耦合器，将市电与载波信号完全分离，避免了在市电电压下检测载波信号，提高了检测装置的安全性能。本发明所述的电力线载波通信性能检测装置的设计采用完全对称的结构，避免因检测装置结构不对称导致本发明中所述的两载波设备上的干扰和/或噪声不相同，从而使测量结果不准确，因此提升了检测装置的精准度。
图1是本发明实施例提供的电力线载波通信性能检测装置的结构原理图。
为了使本发明的目的、技术方案及优点更加清楚明白，以下结合附图及实施例，对本发明进行进一步详细说明。应当理解，此处所描述的具体实施例仅仅用以解释本发明，并不用于限定本发明。
如图1所示，本发明所提供的电力线载波通信性能检测装置包括用于放置第一载波设备1的第一检测位、第一信号耦合器2、信号衰减装置3、第二信号耦合器4、用于放置第二载波设备5的第二检测位。为了使检测结果更加精准，还可以进一步包括第一市电处理模块6、第一载波信号检测模块7、第二市电处理模块8、第二载波信号检测模块9。
作为本发明的一个实施例，所述第一市电处理模块6包括第一交流稳压电源10、第一电源隔离器11、第一信号滤波器12；所述第一载波信号检测模块7包括第一负载网络13、第一频谱分析仪14、第一示波器15。
所述第二市电处理模块8包括第二交流稳压电源16、第二电源隔离器17、第二信号滤波器18；所述第二载波信号检测模块9包括第二负载网络19、第二频谱分析仪20、第二示波器21。
本发明所提供的电力线载波通信性能检测装置通过上、下行通讯路径实现载波设备的性能检测，两种路径的检测原理说明如下：
下行通讯路径:
第一交流稳压电源10滤除输入市电的电压波动并输出到第一电源隔离器11；第一电源隔离器11对滤除电压波动的市电进行进一步隔离，并将被隔离的市电传输到第一信号滤波器12；第一信号滤波器12将被隔离市电中的干扰信号进行滤除，并将滤除干扰信号的市电传输到第一载波设备1；第一载波设备1将滤除干扰信号的市电中加入载波信号并输出到第一信号耦合器2；第一信号耦合器2用于从加入载波信号的市电中隔离该市电与载波信号，并将被隔离的载波信号输出到信号衰减装置3；信号衰减装置3将接收到的被隔离的载波信号进行衰减，并将衰减后的载波信号传输到第二信号耦合器4；第二信号耦合器4将接收到的被衰减的载波信号传输到第二载波设备5；第二载波设备5用于接收并检测被衰减的载波信号，若第二载波设备5能完全正确接收到从第一载波设备1发出的载波信号，则认为通信成功；
第一负载网络13用于模拟实际电网上各种负载的接入或断开的情况，检测载波信号在不同负载条件下的抗负载通讯能力；第一频谱分析仪14用于对载波信号的频域特性进行分析，第一示波器15用于对载波信号的时域特性进行分析，检测载波信号的通信性能。
上行通讯路径:
第二交流稳压电源16滤除输入市电的电压波动并输出到第二电源隔离器17；第二电源隔离器17对滤除电压波动的市电进行进一步隔离，并将被隔离的市电传输到第二信号滤波器18；第二信号滤波器18将被隔离市电中的干扰信号进行滤除，并将滤除干扰信号的市电传输到第二载波设备5；第二载波设备5将滤除干扰信号的市电中加入载波信号并输出到第二信号耦合器4；第二信号耦合器4用于从加入载波信号的市电中隔离该市电与载波信号，并将被隔离的载波信号输出到信号衰减装置3；信号衰减装置3将被隔离的载波信号进行衰减，并将衰减后的载波信号传输到第一信号耦合器2；第一信号耦合器2将被衰减的载波信号传输到第一载波设备1；第一载波设备1用于接收并检测被衰减的载波信号，若第一载波设备1能完全正确接收到从第二载波设备5发出的载波信号，则认为通信成功；
第二负载网络19用于模拟实际电网上各种负载的接入或断开的情况，检测载波信号在不同负载条件下的抗负载通讯能力；第二频谱分析仪20用于对载波信号的频域特性进行分析，第二示波器21用于对载波信号的时域特性进行分析，检测载波信号的通信性能。
具体实施时，上述第一检测位、第二检测位可做成一卡座结构，该卡座内设有与第一、第二载波设备相连接的电极结构，检测时只需将第一、第二载波设备放置在该卡座内即可，当然也可将第一检测位、第二检测位设计为其他结构形式，具体不限。
上述检测装置可支持同时检测两个载波设备，只要将两个待测的载波设备分别放置在上述第一检测位、第二检测位即可，需要经过上文所述的上行通讯路径和下行通讯路径实现检测。还可支持仅检测单个载波设备的情形，此种情况需要将待测的载波设备放置在上述第一检测位、第二检测位中的一个，而另一个检测位则放置其他的载波设备用来辅助测试，仅需要经过上文所述的上行通讯路径或下行通讯路径实现检测即可。
由于本发明所述的检测装置采用完全对称的结构，从而解决了现有技术中因在市电中加入载波信号的载波设备和接收并检测载波信号的载波设备与装置接入市电位置的距离不同，两载波设备上所产生的干扰和/或噪声不一致，进一步影响通信性能检测的问题。
以上所述仅为本发明的较佳实施例而已，并不用以限制本发明，凡在本发明的精神和原则之内所作的任何修改、等同替换和改进等，均应包含在本发明的保护范围之内。
Claims (7)
- 一种电力线载波通信性能检测装置，其特征在于，包括用于放置第一载波设备的第一检测位、第一信号耦合器、信号衰减装置、第二信号耦合器、用于放置第二载波设备的第二检测位；所述第一检测位分别与市电、所述第一信号耦合器连接，用于由所述第一载波设备在输入的市电中加入载波信号并输出到所述第一信号耦合器，或者用于由所述第一载波设备接收并检测所述第一信号耦合器发送的衰减信号；所述第一信号耦合器与所述信号衰减装置连接，用于从所述第一载波设备输入的加入载波信号的市电中隔离该市电与载波信号，并将被隔离的载波信号输出到所述信号衰减装置，或者用于接收所述信号衰减装置发送的被衰减的载波信号并输出到所述第一载波设备；所述信号衰减装置与所述第二信号耦合器连接，将从所述第一信号耦合器接收到的被隔离的载波信号进行衰减，并将衰减后的载波信号传输到所述第二信号耦合器，或者将从所述第二信号耦合器接收到的被隔离的载波信号进行衰减，并将衰减后的载波信号传输到所述第一信号耦合器；所述第二信号耦合器与所述第二检测位连接，将从所述信号衰减装置接收到的被衰减的载波信号传输到所述第二载波设备，或者将从所述第二载波设备输入的加入载波信号的市电中隔离该市电与载波信号，并将被隔离的载波信号输出到所述信号衰减装置；所述第二检测位与市电相连接，用于由所述第二载波设备接收并检测所述第二信号耦合器发送的被衰减的载波信号，或者用于由所述第二载波设备在输入的市电中加入载波信号并输出到所述第二信号耦合器。
- 如权利要求1所述的电力线载波通信性能检测装置，其特征在于，所述电力线载波通信性能检测装置还包括用于对市电进行处理的第一市电处理模块和/或第二市电处理模块；所述第一检测位通过所述第一市电处理模块与市电连接，所述第一市电处理模块的输入端与市电连接，输出端与所述第一检测位连接；所述第二检测位通过所述第二市电处理模块与市电连接，所述第二市电处理模块的输入端与市电连接，输出端与所述第二检测位连接。
- 如权利要求2所述的电力线载波通信性能检测装置，其特征在于，所述第一市电处理模块包括第一交流稳压电源、第一电源隔离器、第一信号滤波器；所述第一交流稳压电源输入端与市电连接，输出端与所述第一电源隔离器连接，用于滤除输入市电的电压波动并输出到所述第一电源隔离器的输入端；所述第一电源隔离器的输出端与所述第一信号滤波器的输入端连接，用于对滤除电压波动的市电进行进一步隔离，并将被隔离的市电传输到所述第一信号滤波器的输入端；所述第一信号滤波器的输出端与所述第一检测位连接，用于将被隔离市电中的干扰信号进行滤除，并将滤除干扰信号的市电传输到所述第一载波设备；所述第二市电处理模块包括第二交流稳压电源、第二电源隔离器、第二信号滤波器；所述第二交流稳压电源输入端与市电连接，输出端与所述第二电源隔离器连接，用于滤除输入市电的电压波动并输出到所述第二电源隔离器的输入端；所述第二电源隔离器的输出端与所述第二信号滤波器的输入端连接，用于对滤除电压波动的市电进行进一步隔离，并将被隔离的市电传输到所述第二信号滤波器的输入端；所述第二信号滤波器的输出端与所述第二检测位连接，用于将被隔离市电中的干扰信号进行滤除，并将滤除干扰信号的市电传输到所述第二载波设备。
- 如权利要求1或2所述的电力线载波通信性能检测装置，其特征在于，所述电力线载波通信性能检测装置还包括用于检测载波信号质量的第一载波信号检测模块和/或第二载波信号检测模块，所述第一载波信号检测模块与所述第一信号耦合器相连接，所述第二载波信号检测模块与所述第二信号耦合器相连接。
- 如权利要求4所述的电力线载波通信性能检测装置，其特征在于，所述第一载波信号检测模块包括第一负载网络，所述第一负载网络与所述第一信号耦合器相连接，用于模拟实际电网上各种负载的接入或断开的情况，检测载波信号在不同负载条件下的抗负载通讯能力；所述第二载波信号检测模块包括第二负载网络，所述第二负载网络与所述第二信号耦合器相连接，用于模拟实际电网上各种负载的接入或断开的情况，检测载波信号在不同负载条件下的抗负载通讯能力。
- 如权利要求4所述的电力线载波通信性能检测装置，其特征在于，所述第一载波信号检测模块还包括第一频谱分析仪，所述第一频谱分析仪与所述第一信号耦合器相连接，用于对载波信号的频域特性进行分析，检测载波信号的通信性能；所述第二载波信号检测模块还包括第二频谱分析仪，所述第二频谱分析仪与所述第二信号耦合器相连接，用于对载波信号的频域特性进行分析，检测载波信号的通信性能。
- 如权利要求4所述的电力线载波通信性能检测装置，其特征在于，所述第一载波信号检测模块还包括第一示波器，所述第一示波器与所述第一信号耦合器相连接，用于对载波信号的时域特性进行分析，检测载波信号的通信性能；所述第二载波信号检测模块还包括第二示波器，所述第二示波器与所述第二信号耦合器相连接，用于对载波信号的时域特性进行分析，检测载波信号的通信性能。
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