CN103297191B - Automatically adjust the transmission rate of the wireless data acquisition method and data acquisition system - Google Patents

Automatically adjust the transmission rate of the wireless data acquisition method and data acquisition system Download PDF

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CN103297191B
CN103297191B CN201310191436.9A CN201310191436A CN103297191B CN 103297191 B CN103297191 B CN 103297191B CN 201310191436 A CN201310191436 A CN 201310191436A CN 103297191 B CN103297191 B CN 103297191B
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bandwidth
data
snr
modulation
rate
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CN103297191A (en
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濮斌
杨涛
张婧婧
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江苏中科羿链通信技术有限公司
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Abstract

本发明提供一种自动调节无线传输速率的数据采集方法及数据采集系统,其中,所述方法包括:获取传输采集数据的无线传输信道当前的带宽;根据所述无线传输信道当前的带宽及为用于数据采集的一个或多个数据采集器分别配置的带宽比重获取每个数据采集器的最大采集速率;根据每个数据采集器的最大采集速率调整通过所述无线传输信道对每个数据采集器的采集数据的发送。 The present invention provides a method for automatically adjusting the wireless transmission rate of data acquisition and data acquisition system, wherein the method comprising: obtaining a wireless transmission channel for transmitting data acquired current bandwidth; according to the wireless transmission channel used for the current bandwidth and the proportion of the bandwidth of one or more data collectors are arranged in each of the acquired data acquired maximum data acquisition sampling rate; the maximum acquisition rate of each data acquisition by adjusting the wireless transmission channel for each data collector transmitting data collection. 本发明通过对无线传输信道中信噪比的监测,以确定当前的信道带宽,从而根据当前信道的带宽,调整数据采集器的采集速率以适应当前的信道质量及带宽。 The present invention is a wireless transmission channel by monitoring the signal to noise ratio to determine the current channel bandwidth, so that according to the bandwidth of the current channel, to adjust the data acquisition sampling rate to accommodate current channel quality and bandwidth.

Description

自动调节无线传输速率的数据采集方法及数据采集系统 Automatically adjust the transmission rate of the wireless data acquisition method and data acquisition system

技术领域 FIELD

[0001] 本发明涉及通讯领域,尤其涉及一种自动调节无线传输速率的数据采集方法及数据采集系统。 [0001] The present invention relates to the field of communications, particularly to a wireless transmission rate automatically adjusts the method of data acquisition and data acquisition system.

背景技术 Background technique

[0002] 随着信息技术的发展,网络已成为人们日常生活和工作的一部分,因此,人们对网络外设的需求也越来越多,例如,各种视频摄像设备、语音设备等。 [0002] With the development of information technology, the network has become a part of people's daily life and work, therefore, the demand for more and more network peripherals, for example, a variety of video camera equipment, voice equipment. 目前,网络摄像设备的应用已十分广泛,通过摄像设备将拍摄到的各种图像数据或录制的各种视频资料,通过网络传递给其他终端,给使用者带来极大的方便,以及很好的用户体验。 At present, the application of network camera equipment has been very widely, captured by the camera device of various image data or various video data recording, transfer to other terminals through the network, to bring users great convenience, as well as very good user experience.

[0003] 网络摄像设备可以通过有线的方式与其他设备进行通信,也可以通过无线的方式与其他设备进行通信。 [0003] Network imaging apparatus may communicate with other devices via a wired manner, can also communicate with other devices via a wireless manner. 对于现有的有线通信来说,带宽一般比较稳定,并且可以保证较高质量的实时视频或图像的正常传输,而对于无线通信来说,无线信道质量存在波动性,当无线信道质量出现恶化的时候,无法保证设备实时传输的视频或图像以原有的质量进行传输。 For existing wired communications, bandwidth is generally more stable and higher quality can guarantee the normal transmission or real-time video images, and for radio communication, the radio channel quality fluctuation is present, when the deterioration of the quality of the radio channel time, can not guarantee real-time transmission of video or image transmission to the original equipment quality. 并且,极有可能出现由于设备的传输速率较高而导致整个无线通信系统一时的流量积增, 甚至致使整个无线链路的崩溃的情况。 And, very likely due to the high rate of equipment caused by the transmission traffic across the wireless communication system by the product of the moment, so that even the collapse of the entire radio link.

[0004] 目前,有些摄像装置包含自动调节传输速率的功能,但通常是以丢包率来衡量传输链路质量的好坏,再对设备的传输速率进行相应的调整。 [0004] Currently, some of the imaging device including a function to automatically adjust the transmission rate, but usually measured packet loss rate of the transmission link quality is good or bad, then the transmission rate of the device adjusted accordingly. 但是,丢包率有时并不能完全的反映出数据传输链路的真实状况,因为导致丢包的原因,可能不仅仅是由于传输链路质量的下降,也有可能是受数据处理能力等因素的影响。 However, packet loss rate may not fully reflect the true state of the data transmission link, because the cause of loss may not only due to the decline in the quality of the transmission link, there may be factors in the data processing capacity by .

发明内容 SUMMARY

[0005] 本发明的主要目的在于提供一种自动调节无线传输速率的数据采集方法及数据采集系统,以解决现有技术存在的由于设备的传输速率较高而导致整个无线通信系统一时的流量积增,甚至可能致使整个无线链路的崩溃的问题。 [0005] The main object of the present invention is to provide an automatic adjustment method for the wireless transmission rate of data acquisition and the data acquisition system, since a high transmission rate in order to solve the device causes the entire radio communication system and a time product of the flow rate in the prior art increase, and may even cause the collapse of the whole question of the wireless link.

[0006] 本发明提供的自动调节无线传输速率的数据采集方法包括:获取传输采集数据的无线传输信道当前的带宽;根据所述无线传输信道当前的带宽及为用于数据采集的一个或多个数据采集器分别配置的带宽比重获取每个数据采集器的最大采集速率;根据每个数据采集器的最大采集速率调整通过所述无线传输信道对每个数据采集器的采集数据的发送。 [0006] The present invention provides a method for automatically adjusting the data acquisition rate wireless transmission comprising: obtaining a wireless transmission channel for transmitting data acquired current bandwidth; according to one or more of the wireless transmission channel to the bandwidth for data acquisition and the proportion of the bandwidth of the data collector are disposed each data acquisition unit acquires a maximum sampling rate; adjust the transmission of the wireless transmission channel for each data collection by the data acquisition based on the maximum acquisition rate of each data acquisition unit.

[0007] 进一步地,获取所述无线传输信道当前的带宽,包括:配置无线传输信道的信噪比区间与带宽的对应关系;对传输采集数据的无线传输信道的信噪比进行监测,根据所述信噪比检测对应的信噪比区间,再结合所述信噪比区间与带宽的对应关系获取所述无线传输信道当前的带宽。 [0007] Further, the wireless transmission channel acquired current bandwidth, comprising: a correspondence relationship configuration of the wireless transmission channel segment SNR and bandwidth; wireless transmission channel signal to noise ratio of the transmission monitoring data collected, based on the said SNR detection interval corresponding to the signal to noise ratio, signal to noise ratio of the combined correspondence relation acquiring section and the bandwidth of the current wireless transmission channel bandwidth.

[0008] 进一步地,配置无线传输信道的信噪比区间与带宽的对应关系,包括:通过系统测试获取所述无线传输信道在不同信道质量下的一个或多个信噪比及其相应适配的在所述无线传输信道中传输信号的调制编码方式,从而得到不同的信噪比区间与适配的调制编码方式的对应关系;根据每个调制编码方式获取相适应的所述无线传输信道的带宽,从而建立不同的信噪比区间与适配的调制编码方式及所述无线传输信道的带宽的对应关系。 [0008] Further, the configuration of the wireless transmission channel bandwidth and SNR range corresponding relationship, comprising: obtaining a wireless transmission channel in a different channel quality or signal to noise ratio and a respective plurality of test system adapted by modulation and coding scheme in the radio channel transmission signal transmission, whereby different SNR range corresponding relationship between the modulation and coding scheme adapted; adapted to acquire the radio transmission channel according to each modulation and coding scheme bandwidth, thereby establishing different SNR range corresponding relationship between the modulation and coding scheme and adapting the radio transmission channel bandwidth.

[0009] 进一步地,对传输采集数据的无线传输信道的信噪比进行监测,根据所述信噪比检测对应的信噪比区间,再结合所述信噪比区间与带宽的对应关系获取所述无线传输信道当前的带宽,包括:实时或周期监测所述无线传输信道的信噪比,并判断监测到的信噪比是否在当前使用的调制编码方式所对应的信噪比区间内;当所述监测到的信噪比不在当前使用的调制编码方式所对应的信噪比区间时,将当前调制编码方式更改为所述信噪比所处的信噪比区间对应的调制编码方式,并根据更改后的调制编码方式获得相适应的所述无线传输信道的带宽。 [0009] Further, the wireless transmission channel signal to noise ratio of the transmission data acquired to monitor, according to the SNR range corresponding to detection SNR, SNR combined section corresponding relationship between the bandwidth of the acquisition said current wireless transmission channel bandwidth, comprising: a real-time or periodic monitoring noise ratio of the wireless transmission channel, and determines whether the signal to noise ratio monitored in the currently used modulation and coding scheme corresponding to the SNR range; if when the monitoring signal to noise ratio is not the current modulation and coding scheme used for the SNR range corresponding to the current modulation and coding scheme to change the modulation and coding scheme in which the SNR range corresponding to the signal to noise ratio, and obtained according to adapt the modulation and coding scheme changes the wireless transmission channel bandwidth.

[0010] 进一步地,向每个数据采集器发送携带所述最大采集速率的速率调节消息,从而使所述数据采集器根据所述速率调节消息调节发送对应采集数据的最大采集速率。 [0010] Further, each of the data transmitted to the collector carries the maximum rate adjustment message acquisition rate, so that the message data acquisition adjustment to adjust the maximum acquisition rate corresponding to the transmission data according to the acquisition rate.

[0011] 为解决上述问题,本发明还提供一种无线收发装置,与一个或多个数据采集器相连接,包括:无线发送模块,用于将接收到的各个数据采集器发来的采集数据,根据每个数据采集器的相应最大采集速率通过无线传输信道进行发送;信道质量监测单元,用于获取所述无线传输信道当前的带宽;传输速率控制单元,用于根据所述无线传输信道当前的带宽及为所述一个或多个数据采集器分别配置的带宽比重获取每个数据采集器的最大采集速率,并将所述最大采集速率发送给相应的数据采集器以使相应的数据采集器调整各自向所述无线发送模块发送所述采集数据的最大采集速率。 [0011] In order to solve the above problems, the present invention also provides a radio apparatus, the data collector is connected to one or more, comprising: a wireless transmitter, for each of the received data acquisition to acquire data sent , according to the respective maximum acquisition rate of each data acquisition device via a wireless transmission channel; channel quality monitoring unit, configured to acquire the wireless transmission channel to the bandwidth; transmission rate control unit, for the wireless transmission channel in accordance with the current and a bandwidth of the one or more data collection devices are arranged proportion of the bandwidth of each data acquisition unit acquires a maximum acquisition rate, and the maximum acquisition rate corresponding to a data logger so that the corresponding data acquisition adjusting the maximum acquisition rate of each transmitting collected data to the wireless transmitting module.

[0012] 进一步地,所述信道质量监测单元,进一步用于:配置无线传输信道的信噪比区间与带宽的对应关系;对传输采集数据的无线传输信道的信噪比进行监测,根据所述信噪比检测对应的信噪比区间,再结合所述信噪比区间与带宽的对应关系获取所述无线传输信道当前的带宽。 [0012] Further, the channel quality monitoring unit is further configured to: configure the radio transmission channel SNR range corresponding relationship to bandwidth; wireless transmission channel signal to noise ratio of the transmission data acquired to monitor, according to the SNR signal to noise ratio corresponding to the detection range, combined range corresponding relationship between the SNR and bandwidth of the wireless transmission channel acquired current bandwidth.

[0013] 进一步地,所述信道质量监测单元,进一步用于:通过系统测试获取所述无线传输信道在不同信道质量下的一个或多个信噪比及其相应适配的在所述无线传输信道中传输信号的调制编码方式,从而得到不同的信噪比区间与适配的调制编码方式的对应关系;根据每个调制编码方式获取相适应的所述无线传输信道的带宽,从而建立不同的信噪比区间与适配的调制编码方式及所述无线传输信道的带宽的对应关系。 [0013] Further, the channel quality monitoring unit is further configured to: acquire a radio transmission channel at the different channel quality or signal to noise ratio and a respective plurality of test system by adapting the radio transmission modulation and coding scheme transmitted in a channel signal to noise ratio to obtain different intervals corresponding relationship between the modulation and coding scheme adapted; adapted to obtain the bandwidth of the radio transmission channel according to each modulation and coding scheme, to establish different SNR range corresponding relationship between the modulation and coding scheme and adapting the radio transmission channel bandwidth.

[0014] 进一步地,所述信道质量监测单元,进一步用于:实时或周期监测所述无线传输信道的信噪比,并判断监测到的信噪比是否在当前使用的调制编码方式所对应的信噪比区间内;当所述监测到的信噪比不在当前使用的调制编码方式所对应的信噪比区间时,将当前调制编码方式更改为所述信噪比所处的信噪比区间对应的调制编码方式,并根据更改后的调制编码方式获得相适应的所述无线传输信道的带宽。 [0014] Further, the channel quality monitoring unit is further configured to: monitor in real-time or periodic noise ratio of the wireless transmission channel, and determines whether the detected modulation and coding scheme of the signal to noise ratio corresponding to the currently used the SNR interval; when the signal to noise ratio is not monitored current modulation and coding scheme used for the SNR range corresponding to the modulation and coding scheme to change the current interval of the signal to noise ratio SNR is located the corresponding modulation and coding scheme, and adapted to obtain the bandwidth of the wireless transmission channel in accordance with the changed modulation and coding scheme.

[0015] 进一步地,所述传输速率控制单元进一步用于:向每个数据采集器发送携带所述最大采集速率的速率调节消息,从而使所述数据采集器根据所述速率调节消息调整发送对应采集数据的最大采集速率。 [0015] Furthermore, the transmission rate control unit is further configured to: send the maximum carrying speed acquisition rate adjustment message to each of the data acquisition so that the data acquisition rate is adjusted according to the transmitted message corresponding to adjust the maximum acquisition rate of the acquisition data.

[0016] 为解决上述问题,本发明还提供了一种数据采集系统,包括:如上所述的无线收发装置及分别与所述无线收发装置相连接的一个或多个数据采集器,其中,所述数据采集器, 进一步包括:数据发送单元,用于撷取采集数据并传输给所述无线收发装置进行发送;以及传输速率调整单元,用于接收所述无线收发装置的传输速率控制单元发送的速率调节消息,并根据所述速率调节消息将所述数据发送单元的最大采集速率设置为所述速率调节消息中携带的最大采集速率。 [0016] In order to solve the above problems, the present invention further provides a data acquisition system, comprising: a wireless transceiver apparatus as described above, and one or more data collectors respectively connected to the radio transceiver device, wherein the said data collection, further comprising: a data transmission unit for retrieving the data collection and transmission to the radio transceiver for transmission; and a transmission rate adjusting unit, for receiving a transmission rate of the radio transmission of the control unit rate adjustment message, a message according to the rate adjustment and said data transmission unit is set to the maximum acquisition rate of the acquisition rate of the maximum rate modifier carried in the message.

[0017]与现有技术相比,本发明所获得的技术效果: [0017] Compared with the prior art, the technical effects obtained by the present invention:

[0018] (1)通过实时或周期监测无线传输信道当前的信噪比,确定所述无线传输信道的当前信噪比是否与当前的调制编码方式相适配,从而可以根据当前的信噪比调整无线传输信道中的调制编码方式,以较好的适应信道质量。 [0018] (1) monitoring the radio transmission channel or the current SNR by real-time period, determining the current wireless transmission channel SNR whether the current modulation and coding scheme adapted to the current SNR may adjusting the wireless transmission channel modulation and coding scheme, in order to better adapt to channel quality.

[0019] (2)根据实时或周期监测得到的信噪比调整无线传输信道中的调制编码方式以确定当前的信道带宽,从而可以根据当前的信道带宽,调整数据采集器的采集速率,以适应当前的信道质量及带宽,避免因一个或多个设备的传输时速率过高而信道质量较低,导致的无线传输信道中某一时刻数据激增甚至崩溃的现象。 [0019] (2) to determine the current channel bandwidth modulation and coding scheme according to the wireless transmission channel SNR adjustment period monitoring real-time or obtained thereby according to the current channel bandwidth, data acquisition sampling rate adjusted to accommodate the current channel quality and bandwidth, to avoid radio transmission channel because the transmission rate is too high the one or more devices and a lower channel quality, resulting in a certain time data surge even collapse phenomenon.

附图说明 BRIEF DESCRIPTION

[0020] 此处所说明的附图用来提供对本发明的进一步理解,构成本申请的一部分,本发明的示意性实施例及其说明用于解释本发明,并不构成对本发明的不当限定。 [0020] The drawings described herein are provided for further understanding of the present invention, constitute a part of this application, exemplary embodiments of the present invention are used to explain the present invention without unduly limiting the present invention. 在附图中: In the drawings:

[0021] 图1是本发明涉及的自动调节无线传输速率的数据采集方法的流程图; [0021] FIG. 1 is a flowchart of a data collection method for automatically adjusting the wireless transmission rate of the present invention;

[0022] 图2是本发明一实施例的流程图; [0022] FIG 2 is a flowchart of one embodiment of the present invention;

[0023] 图3是本发明的无线收发装置的示意图; [0023] FIG. 3 is a diagram of a wireless transceiver of the present invention;

[0024] 图4是本发明的数据采集系统的示意图。 [0024] FIG. 4 is a schematic diagram of the data acquisition system of the present invention.

具体实施方式 Detailed ways

[0025]为使本发明的目的、技术方案和优点更加清楚,以下结合附图及具体实施例,对本发明作进一步地详细说明。 [0025] To make the objectives, technical solutions, and advantages of the invention more apparent, the accompanying drawings and specific embodiments of the present invention will be described in further detail.

[0026]本发明的主要思想在于,通过对无线传输信道的信噪比进行实时监测,获得所述无线信道当前的带宽,从而确定所述无线传输信道中的一个或多个数据采集器在所述无线传输信道中传输采集数据的最大采集速率,并调整所述数据采集器的最大采集速率,从而可以使每个数据采集器以比较合理的传输速率传输采集数据。 [0026] The main idea of ​​the present invention is that, by wireless transmission channel signal to noise ratio of the real-time monitoring, obtaining the wireless channel current bandwidth to determine one or more of wireless transport channels in the data acquisition the maximum acquisition rate of transmission of said wireless transmission channel data acquisition, data acquisition, and adjusting the maximum acquisition rate, thus each data acquisition at reasonable transfer rate of the transmission data acquisition. 所述采集速率,是指数据采集器向无线收发装置发送采集数据的速率,所述无线收发装置可以将数据采集器发来的采集数据通过无线传输信道进行发送。 The collected data acquisition rate, is the rate of data acquisition to collect data transmission to the wireless transceiver, the radio transceiver may be sent to the data collector transmitted via a wireless transmission channel.

[0027]如图1所示,本发明的方法包括:步骤S1,获取传输采集数据的无线传输信道当前的带宽;步骤S2,根据所述无线传输信道当前的带宽及为用于数据采集的一个或多个数据采集器分别配置的带宽比重获取每个数据采集器的最大采集速率;步骤S3,根据每个数据采集器的最大采集速率调整通过所述无线传输信道对每个数据采集器的采集数据的发送。 [0027] 1, the process of the present invention comprises: step S1, the wireless transmission channel for transmitting acquired data acquired current bandwidth; step S2, according to the wireless transmission channel to the bandwidth and data collection for a more bandwidth or data acquisition are disposed proportion of each data acquisition unit acquires a maximum sampling rate; step S3, it is adjusted by the radio transmission channel for each data collection in accordance with a maximum acquisition rate of the acquisition of each data acquisition send data. [0028]以下以一个实施例来对本发明的方法进行详细说明,在本实施例中,步骤S101-S107对应步骤S1,步骤S108对应步骤S2,步骤S109对应步骤S3,如图1所示,该实施例的步骤包括: [0028] The following embodiment be performed in one embodiment of the method of the present invention in detail, in the present embodiment, step S101-S107 corresponding to step S1, the step corresponding to step S2 S108, step S109 corresponding to step S3, the 1, the Example comprises the step of:

[0029]步骤S101,通过系统测试获取所述无线传输信道不同的信噪比区间与适配的调制编码方式的对应关系。 [0029] step S101, the obtaining of the different radio transmission channel SNR range corresponding relationship between the modulation and coding scheme adapted by the system test.

[0030]无线传输信道中,对于某个给定的信噪比,可以为其匹配该信噪比所处的信噪比区间所对应的最适合的调制编码方式,也可以认为,不同的调制编码方式适和不同的信噪比区间,这种对应关系取决于系统特性,不同的系统中信噪比区间对应的最适合的调制编码方式不一定相同。 [0030] wireless transmission channel, for a given signal to noise ratio, may be most appropriate for matching modulation and coding scheme in which the SNR of the SNR corresponding to an interval, can be considered, different modulation suitable coding and different SNR intervals, this relationship depends on the system characteristics, different systems are not necessarily the same as the SNR range corresponding to the most appropriate modulation and coding scheme. 因此,可以通过系统测试获取当前无线传输系统中,所述无线传输信道在不同信道质量下的一个或多个信噪比及其相应适配的在所述无线传输信道中传输信号的调制编码方式,从而得到不同的信噪比区间与适配的调制编码方式的对应关系;其中,系统测试是指通过射频测试并结合物理层仿真算法对当前无线通信系统进行的测试,得到无线传输信道在不同信道质量下的一个或多个信噪比及其相应适配的在所述无线传输信道中传输信号的调制编码方式,从而,得到不同的信噪比区间与适配的调制编码方式的对应关系。 Thus, the current can be acquired through a wireless transmission system test system, a wireless transmission channel at the different channel quality or signal to noise ratio and a respective plurality of modulation and coding scheme adapted in the radio channel transmission signal transmission to obtain different SNR range corresponding relationship between the modulation and coding scheme adapted; wherein the test system is through the physical layer in conjunction with the RF test and simulation algorithms test current wireless communication systems, the wireless transmission channel to obtain different one or more signal to noise ratio at their respective adapted channel quality modulation and coding scheme of the wireless transmission channel of the transmission signal, thereby to obtain a corresponding relationship between the modulation and coding scheme and SNR section adapted .

[0031] 步骤S102,根据每个调制编码方式获取相适应的所述无线传输信道的带宽。 [0031] Step S102, the bandwidth of the acquired adapted radio transmission channel according to each modulation and coding scheme.

[0032] 无线传输信道中调制编码方式与信道的带宽也是对应的关系,对应关系取决于各系统特性,在同一系统中,各种编码方式有其固定对应的信道带宽。 Relationship [0032] radio transmission channel coding scheme and a modulation bandwidth of the channel is corresponding to the correspondence relationship depending on the characteristics of each system, in the same system, but with a set various encoding corresponding to the channel bandwidth. 因此,可根据每个调制编码方式获取相适应的所述无线传输信道的带宽。 Thus, the available bandwidth of the wireless transmission channel adapted according to each modulation and coding scheme.

[0033]步骤S103,建立不同的信噪比区间与适配的调制编码方式及所述无线传输信道的带宽的对应关系。 [0033] step S103, the establishment of different SNR range corresponding relationship between the modulation and coding scheme and adapting the radio transmission channel bandwidth.

[0034]由步骤S101-S102得到无线传输信道中信噪比区间与无线传输信道中的调制编码方式的对应关系以及调制编码方式与信道带宽的对应关系,便可以得到无线传输信道中信噪比与带宽的间接对应关系,例如,表1为在某一无线传输系统中信噪比区间与调制编码方式及信道带宽的对应关系表,表中只列出了部分调制编码方式对应的信噪比区间及信道带宽的对应关系,并且,在下面的对应关系表中,信噪比的数值区间与调制编码方式的对应关系以及调制编码方式与带宽的数值的对应关系,为在同一个系统下得到的,该对应关系因系统的不同而不同。 [0034] obtained in wireless transmission channels corresponding relationship between SNR interval modulation and coding scheme of the wireless transmission channel and the correspondence between modulation and coding schemes and channel bandwidths in step S101-S102, you can obtain the wireless transmission channel SNR indirect correspondence relationship between bandwidth and, for example, table 1 shows a wireless transmission system at a SNR range with modulation and coding scheme and a channel bandwidth correspondence table, the table lists only a portion corresponding to the modulation and coding scheme SNR section and the corresponding relation between the channel bandwidth, and, in the following correspondence table, the correspondence between the value and the SNR range corresponding relationship between the modulation and coding scheme value and modulation and coding schemes bandwidth, in order to obtain the same system and the correspondence of different systems vary.

Figure CN103297191BD00071

[0037] 步骤S104,实时或周期监测所述无线传输信道当前的信噪比。 [0037] Step S104, the real-time or periodic monitoring of the current wireless transmission channel SNR.

[0038] 在无线传输中,信道质量往往存在波动,信道中的信噪比也是会时刻发生变化的, 因此,对信噪比进行实时或周期性监测,以便得到信道中的实时的信道质量或一段时间内的信道质量。 [0038] In wireless transmission, there is often the channel quality fluctuations, channel SNR may also change in time, and therefore, signal to noise ratio in real time or periodically monitored in order to obtain real-time channel quality or channel channel quality over time.

[0039] 对信噪比进行实时监测,就是实时获得当前的信噪比的数值,并在步骤S105中,判断实时监测到的当前信噪比的数值是否处于当前使用的调制编码方式所对应的信噪比区间内。 [0039] real-time monitoring of the signal to noise ratio is obtained in real time the value of the current signal to noise ratio, and in step S105, it is determined value of the current real-time monitoring to-noise ratio is in the currently used modulation and coding scheme corresponding to the noise ratio within the range. 例如,当监测得到当前的实时信噪比为3dB,则在步骤S105中,判断当前信噪比3dB是否处于当前使用的调制编码方式所对应的信噪比区间内。 For example, when the current real-time monitoring to give 3dB SNR, then in step S105, it determines whether the current is within 3dB SNR currently used modulation and coding scheme corresponding to the SNR range.

[0040] 对信噪比进行周期性的监测,简单来说,可分为监测和滤波两个过程,监测过程中,在监测周期内,每隔预定时间,对信道的信噪比进行一次监测,得到当前时刻的真实信噪比,所述监测周期可以根据具体情况设定,例如设定为1秒、5秒等。 [0040] SNR periodically monitoring simply, the monitoring and filtering can be divided into two processes, the process of monitoring, in the monitoring period, every predetermined time, signal to noise ratio of the channel, monitoring is conducted obtain the real signal to noise ratio at the current time, the monitoring period may be set according to specific circumstances, for example, set to 1 second, 5 seconds, etc. 在滤波过程中,将上一次计算得到的计算信噪比和本次监测得到的真实信噪比,按照预定比重相加,得到的数值作为本次的计算信噪比;将本周期最后一次计算得到的计算信噪比作为当前监测周期的信噪比。 In the filtering process, the signal to noise ratio calculated last time to calculate the true SNR obtained and this monitoring obtained by adding a predetermined proportion of the value obtained by calculating the SNR as the present; the last calculation period of the present signal to noise ratio SNR is calculated as the current monitoring period. 上述的监测过程和滤波过程可以同步进行,即,每进行一次监测,便进行一次计算;也可以在一个周期的监测过程结束后,再进行滤波过程。 Above monitoring process and the filtering process may be carried out simultaneously, i.e., once for each monitor, it is calculated once; may be monitored at the end of a period, then the filtering process.

[0041] 滤波过程中,可以按公式(1)计算本次监测的计算信噪比; [0041] The filtering process can be (1) the SNR calculation according to a formula of this monitoring;

[0042] SNR7 (t)=aXSNR(t) + (la) XSNR7 (t-At) (1) [0042] SNR7 (t) = aXSNR (t) + (la) XSNR7 (t-At) (1)

[0043] 其中,Δ t表示每个Δ t时间进行一次监测;SNR(t)表示当前时刻t,监测得到的真实信噪比;SNR'⑴表示计算得到的当前时刻t的计算信噪比;SNR'(t-At))表示时刻(t-Δ t)的计算信噪比,即,上一次监测时,计算得到的计算信噪比;a表示当前时刻t,本次监测得到的真实信噪比在当前时刻的计算信噪比中所占的比重;(Ι-a)表示前一时刻(t-At)计算得到的计算信噪比SNR' (t-At)在当前时刻t的计算信噪比SNR'(t)中所占的比重; [0043] where, Δ t [Delta] t represents each time a monitored; the SNR (t) represents the current time t, to obtain the true SNR monitoring; SNR'⑴ indicating the calculated SNR calculated at current time t; calculating noise ratio SNR '(t-At)) represents the time (t-Δ t) SNR calculation, i.e., when the last monitoring calculated; a represents the current time point t, this monitoring real channel obtained noise ratio SNR is calculated in proportion to the proportion of the current time; (Ι-a) represented by the current time t is calculated the previous time (t-at) calculation to noise ratio SNR '(t-at) obtained noise ratio SNR '(t) in the proportion of;

[0044] 下面举一个例子进行说明: [0044] Next, an example will be described:

[0045] 假设以5秒为一个监测周期,每隔1秒进行一次信噪比的监测,a值设为0.9,并根据公式(1)得到: [0045] Assuming that a monitoring period is five seconds, once every 1 second monitoring signal to noise ratio, the value of A is set to 0.9, and obtained according to the equation (1):

[0046] Is时监测得到真实信噪比为ldB,对应的计算信噪比SNR' =1 X 0.9+0 X 0.1=0.9dB [0046] Is obtained when monitoring the real SNR ldB, the corresponding calculated SNR SNR '= 1 X 0.9 + 0 X 0.1 = 0.9dB

[0047] 2 s时监测得到真实信噪比为2dB,对应的计算信噪比SNf =2X0.9+0.9X0.1 = 1.89dB; When the [0047] 2 s to obtain monitoring real SNR 2dB, the corresponding calculated SNR SNf = 2X0.9 + 0.9X0.1 = 1.89dB;

[0048] 3s时监测得到真实信噪比为3dB,对应的计算信噪比SNV =3X0.9+1.89X0.1 = 2.889dB; When [0048] 3s monitoring real SNR obtained 3dB, the corresponding calculated SNR SNV 3X0.9 + 1.89X0.1 = 2.889dB =;

[0049] 4s时监测得到真实信噪比为ldB,对应的计算信噪比SNV =1 X0.9+2.889X0.1 = 1.1889dB; [0049] 4s obtain real time monitoring SNR ldB, the corresponding calculated SNR SNV = 1 X0.9 + 2.889X0.1 = 1.1889dB;

[0050] 5s时监测得到真实信噪比为2dB,对应的计算信噪比SNf =2X0.9+1.1889X0.1 = 1.91889dB; [0050] 5s to give real time monitoring SNR 2dB, the corresponding calculated SNR SNf = 2X0.9 + 1.1889X0.1 = 1.91889dB;

[00511因此,将5s时对应的计算信噪比1.91889dB作为当前周期的信噪比,也就是在步骤S105中,判断5S时得到的计算信噪比是否处于当前使用的调制编码方式所对应的信噪比区间内的信噪比。 [00511 Thus, when the corresponding calculated SNR 5s 1.91889dB SNR as the current period, i.e. in step S105, it is determined calculating the SNR obtained when 5S is in the currently used modulation and coding scheme corresponding to the noise ratio of signal to noise ratio within the range.

[0052]判断是否改变调制编码方式后,继续进行下一周期的计算。 After [0052] It is determined whether to change the modulation and coding scheme, the calculation proceeds to the next cycle. 在下一周期的计算中不将上一周期最后时刻计算出的计算信噪比值清零,而是接着用于下一周期的计算。 The last cycle is not the last time calculation in the calculation of the next cycle calculated SIR value is cleared, but then for the next cycle calculation. 例如, 接着计算下一个监测周期的计算信噪比时,则将上一个周期的信噪比(5S时的计算信噪比),作为上一时刻的计算信噪比,直接进行下一次的计算。 For example, when the SNR calculation and then a monitoring period, a period signal to noise ratio (SNR calculated at 5S) will be on, a signal to noise ratio is calculated as the time, directly next calculated .

[0053]步骤S105,判断监测到的信噪比是否在当前使用的调制编码方式所对应的信噪比区间内。 [0053] step S105, determines whether the signal to noise ratio monitored in the currently used modulation and coding scheme corresponding to the SNR range.

[0054] 根据步骤S101-S103得到的信噪比区间与适合的调制编码方式的对应关系以及与带宽的对应关系,判断在步骤104中得到的实时信噪比或周期性监测得到的当前周期的信噪比是否处于当前使用的调制编码方式所对应的信噪比区间。 [0054] The steps S101-S103 SNR range corresponding relationship obtained with a suitable modulation and coding scheme and a corresponding relationship between the bandwidth, the current cycle is determined in real time or periodically monitoring the signal to noise ratio obtained in step 104 is obtained in the whether the signal to noise ratio in the currently used modulation and coding scheme corresponding to the SNR range. 如果所述信噪比处于当前的调制编码方式所对应的信噪比区间内,则不需要改变当前的调制编码方式,可返回到步骤S104,实时或周期监测所述无线传输信道当前的信噪比。 If the signal to noise ratio in the current modulation and coding scheme corresponding to the SNR range, there is no need to change the current modulation and coding scheme, it may return to step S104, in real time or periodically monitoring the current wireless transmission channel signal to noise ratio.

[0055] 而如果当前的信噪比不在当前的调制编码方式所对应的信噪比区间,则进行步骤S106,将当前调制编码方式更改为所述信噪比所处的信噪比区间对应的调制编码方式。 [0055] If the current SNR is not the current modulation and coding scheme corresponding to the signal to noise ratio range, is performed step S106, to change the current modulation and coding scheme corresponding to the SNR of the SNR at which the interval modulation and coding scheme.

[0056]例如,当实时监测当前信噪比时,某一时刻t,监测到的信噪比为6dB,从表1中查找信噪比区间与调制编码方式的对应关系,信噪比为6dB所对应的信噪比区间为5-7dB,该信噪比区间对应的调制编码方式为BPSK3/4,而当前的调制编码方式为BPSK3/4,则系统的调制编码方式不需要更改,仍为BPSK3/4,返回继续执行步骤S104;若某一时刻t,监测到信道的信噪比为8dB,对应的信噪比区间为7-10dB,而当前的调制编码方式为BPSK3/4,则需要执行步骤S106将当前的调制编码方式由当前的BPSK3/4更改为信噪比区间7-10dB所对应的调制编码方式QPSK1/2。 [0056] For example, when the signal to noise ratio of the current real-time monitoring, at a time t, the monitored 6dB SNR, SNR range and find the corresponding relationship between the modulation and coding scheme from Table 1, the SNR of 6dB corresponding to the interval 5-7 dB SNR, signal to noise ratio corresponding to the section of the modulation and coding scheme BPSK3 / 4, and the current modulation and coding scheme BPSK3 / 4, the system does not need to change the modulation and coding scheme, still BPSK3 / 4, returns to step S104 to continue; if a certain time t, the monitored channel SNR is 8dB, the corresponding SNR interval 7-10dB, and the current modulation and coding scheme BPSK3 / 4, it is necessary step S106 the current modulation and coding scheme changes from the current BPSK3 / 4 corresponding to the SNR range 7-10dB modulation and coding scheme QPSK1 / 2.

[0057]当周期监测信噪比时,则可根据某一监测周期得到的周期信噪比,确定其所处于的信噪比区间,再根据该信噪比区间对应的调制编码方式确定是否更改调制编码方式。 [0057] When the SNR monitoring period, the monitoring period can be obtained according to the period of a signal to noise ratio, signal to noise ratio in which it is determined interval, and then determines whether to change the modulation and coding scheme according to the SNR range corresponding to modulation and coding scheme. [0058]步骤S107,根据更改后的调制编码方式获得相适应的所述无线传输信道的带宽。 [0058] step S107, obtaining the wireless transmission channel bandwidth adapted according to the modulation and coding scheme changes. [0059] 例如,在上述步骤S105-S106中,由于监测到的当前信噪比8dB对应的信噪比区间不是当前的调制编码方式BPSK3/4所对应的信噪比区间,因此将当前的调制编码方式更改为当前信噪比8dB所处于的信噪比区间对应的调制编码方式QPSK1/2,而由更改后的调制编码方式QPSK1/2所对应的带宽为13.34Mbps,因此,可以确定无线传输信道当前的带宽为13.34Mbps〇 [0059] For example, in the above-described steps S105-S106, since the monitored current SNR SNR range corresponding to 8dB not the current modulation and coding scheme BPSK3 / 4 corresponding to the signal to noise ratio range, and therefore the current modulation change the coding mode is the interval corresponding to the current signal to noise ratio in the signal to noise ratio of 8dB modulation and coding scheme QPSK1 / 2, and the modulation and coding scheme changes after QPSK1 / 2 bandwidth corresponding 13.34Mbps, and therefore, radio transmission can be determined the current channel bandwidth 13.34Mbps〇

[0060] 步骤S108,根据无线传输信道当前的带宽及为用于数据采集的一个或多个数据采集器分别配置的带宽比重获取每个数据采集器的最大采集速率。 [0060] step S108, the acquired maximum acquisition rate of each data collector according to the bandwidth proportion wireless transmission channel to the bandwidth and data acquisition for one or more data collection devices are configured.

[0061] 在实际应用中,可以为无线传输信道中的每个数据采集器分别分配传输带宽,为各个数据采集器分配的传输带宽可以根据为每个数据采集器配置的服务等级来确定,例如,为某个数据采集器配置的服务等级为一级,而服务等级一级对应分配的带宽比重是80%,若所述无线传输信道当前的带宽为10Mbps,则为所述数据采集器配置的带宽为8Mbps, 确定所述数据采集器的在所述无线传输信道中的最大采集速率应为8Mbps。 [0061] In practical applications, can be assigned to each data acquisition unit in wireless transmission channels of the transmission bandwidth, respectively, may be determined according to a service level for each configuration data acquisition for each data acquisition bandwidth allocation, e.g. , a specific gravity of the bandwidth of a data service class to a collector configuration, and a service level corresponding to the distribution was 80%, if the wireless transmission channel in a current bandwidth 10Mbps, compared with the configuration of the data collector bandwidth 8Mbps, the data collector to determine a maximum acquisition rate of the wireless transmission channel should 8Mbps. 所述采集速率, 是指数据采集器向无线收发装置发送采集数据的速率,所述无线收发装置可以将数据采集器发来的采集数据通过无线传输信道进行发送。 The collected data acquisition rate, is the rate of data acquisition to collect data transmission to the wireless transceiver, the radio transceiver may be sent to the data collector transmitted via a wireless transmission channel. 由于无线传输信道中可能不仅仅只有一个采集器,每个无线收发装置可能连接数据采集器,为了避免多个网络采集器同时传输数据时,因传输速率过高而导致的无线传输信道中某一时刻数据激增,因此,可以根据为每个数据采集器分别分配带宽,例如,有3个数据采集器,服务等级分别为一级、二级、三级、而它们的服务等级对应的带宽比重分别为50%、30%、20%,若无线传输信道当前的带宽为1 OMbp s,为上述三个数据采集器分别配置带宽5Mbps、3Mbps、2Mbps,并根据为上述三个数据采集器分配的带宽,将它们的最大采集速率分别调整为5Mbps、3Mbps和2Mbps。 Because the wireless transmission channel of a wireless transmission channel may be not only a collector, each of the radio data collector may be connected, in order to avoid the plurality of network simultaneously transmit data collectors, due to the high transmission rate caused time data proliferation, thus, can allocate bandwidth to each data acquisition, respectively, for example, there are three data acquisition, respectively, a service class, two, three, while the bandwidth service level corresponding to the specific gravity thereof, respectively, 50%, 30%, 20%, if the wireless transmission channel to the bandwidth of 1 OMbp s, set the bandwidth to 5Mbps each of the three data acquisition, 3Mbps, 2Mbps, and according to the allocation of the bandwidth of the three data acquisition , their maximum acquisition rate were adjusted to 5Mbps, 3Mbps, and 2Mbps.

[0062] 步骤S109,根据每个数据采集器的最大采集速率调整通过所述无线传输信道对每个数据采集器的采集数据的发送。 [0062] step S109, adjusting the transmission data acquisition for each data acquisition through the wireless transmission channel in accordance with a maximum acquisition rate of each data acquisition unit.

[0063]在步骤S109中,可以采用发送速率调节消息的方式来控制每个数据采集器的最大采集速率。 [0063] In step S109, the transmission rate can be adjusted by way of a control message to a maximum acquisition rate of each data acquisition unit. 例如,某些数据采集器,如网络摄像头等,其本身具有自动调节传输速率的功能, 最大采集速率可以配置成固定模式和自动调节模式。 For example, some data collection, such as a web camera, which itself has the function of automatically adjusting a transmission rate, the maximum rate may be configured to capture a fixed mode and the automatic adjustment mode. 固定模式指的是无论信道质量如何, 网络摄像头的采集速率始终为用户设定的值;而自动调节模式指的是网络摄像头的最大采集速率会根据实际的无线信道质量进行自动调节,因此根据上述步骤S104-S108中,对无线信道质量的监测从而得到的所述网络摄像头的最大采集速率,在S108和S109之间还可以包括向所述网络摄像头发送携带所述最大采集速率的速率调节消息的步骤,从而使所述网络摄像头根据所述速率调节消息调节发送对应采集数据的最大采集速率进而影响所述无线发送模块通过所述无线传输信道对每个数据采集器的采集数据的发送。 Fixed mode refers regardless of channel quality acquisition rate webcam always user set value; automatically adjust mode refers to a maximum acquisition rate of the network camera can be automatically adjusted according to actual radio channel quality, and therefore according to the above step S104-S108, the monitoring of the quality of the radio channel to obtain the maximum acquisition rate of the network camera, between S108 and S109 may also include a rate transmitted to the network camera carries the maximum acquisition rate adjustment message step, so that the webcam maximum acquisition rate corresponding to adjust the send message data collection is adjusted according to the transmission rate thereby affecting the data acquisition for each data acquisition device through the wireless transmission channel to the wireless transmitting module.

[0064] 下面以一个实施例对本发明的无线收发装置进行说明,如图3所示,所述无线收发装置10与一个或多个数据采集器相连接,可以采用网线等有线连接方式连接,也可以采用其他方式连接,本发明不做限制。 [0064] In the following embodiments of a radio apparatus according to the present invention will be described, as shown in FIG. 3, the radio transceiver 10 is connected to a data logger to one or more, it may be a wired connection like cable connection, It may be connected in other manners, not limited in the present invention. 所述无线收发装置包括:无线发送模块11、信道质量监测单元12、传输速率控制单元13。 The radio transceiver comprising: a wireless transmitter 11, a channel quality monitoring unit 12, transmission rate control unit 13.

[0065] 所述无线收发装置包括无线发送模块11,用于将接收到的各个数据采集器发来的采集数据,根据每个数据采集器的相应最大采集速率通过无线传输信道进行发送。 The [0065] apparatus includes a wireless transceiver 11, wireless data transmission module for collecting the received respective data acquisition sent, transmitted over a wireless transmission channel according to a corresponding maximum acquisition rate of each data collector.

[0066] 所述无线收发装置的信道质量监测单元12,用于获取所述无线传输信道当前的带宽;进一步用于对所述传输信号的信噪比进行监测,根据所述信噪比检测对应的信噪比区间,再结合预先配置的所述无线传输信道的信噪比区间与所述带宽的对应关系获取所述无线传输信道当前的带宽。 [0066] The channel radio quality monitoring unit 12 for acquiring the current wireless transmission channel bandwidth; to-noise ratio is further configured to monitor the transmission signal according to the detection signal to noise ratio corresponding to SNR range, combined range-noise ratio of the wireless transport channel pre-configured to acquire the wireless transmission channel to the bandwidth of the bandwidth corresponding relationship.

[0067] 所述传输速率控制单元13,用于根据所述无线传输信道当前的带宽及为所述一个或多个数据采集器分别配置的带宽比重获取每个数据采集器的最大采集速率,并将所述最大采集速率发送给相应的数据采集器以使相应的数据采集器调整各自向所述无线发送模块发送所述采集数据的最大采集速率。 [0067] The transmission rate control unit 13, according to the proportion of the bandwidth of the wireless transmission channel to the bandwidth and the one or more data collection devices are configured for maximum acquisition rate for each data acquisition, and sending the maximum acquisition rate corresponding to the respective data acquisition to data acquisition to adjust the maximum acquisition rate of each transmission to the wireless transmitter data collection.

[0068] 所述无线收发装置的信道质量监测单元12,在对信道质量进行监测之前,先要配置无线传输信道的信噪比区间与带宽的对应关系。 [0068] Channel quality monitoring unit 12 of the radio, before the channel quality monitoring, first corresponding relationship between the configuration of the wireless transmission channel segment SNR and bandwidth.

[0069]所述信道质量监测单元12,进一步用于通过系统测试获取所述无线传输信道在不同信道质量下的一个或多个信噪比及其相应适配的在所述无线传输信道中传输信号的调制编码方式,从而得到不同的信噪比区间与适配的调制编码方式的对应关系;根据得到的无线传输信道中信噪比区间与无线传输信道中的调制编码方式的对应关系以及调制编码方式与信道带宽的对应关系,建立不同的信噪比区间与适配的调制编码方式及所述无线传输信道的带宽的对应关系。 [0069] The channel quality monitoring unit 12 is further configured to acquire the wireless transmission channel in a different channel quality or signal to noise ratio and a respective plurality of through system adapted to transmit the radio channel transmission test in modulation and coding scheme signal, to thereby obtain a different SNR range corresponding relationship between the modulation and coding scheme adapted; corresponding relationship between the modulation and coding scheme based on the radio transmission channel obtained in wireless transmission channels section and the modulation signal to noise ratio encoding correspondence relationship with channel bandwidths, different SNR intervals to establish corresponding relationship between the modulation and coding scheme and adapting the radio transmission channel bandwidth.

[0070] 无线传输信道中,对于某个给定的信噪比,可以为其匹配该信噪比所处的信噪比区间所对应的最适合的调制编码方式,也可以认为,不同的调制编码方式适和不同的信噪比区间,这种对应关系取决于系统特性,不同的系统中信噪比区间对应的最适合的调制编码方式不一定相同。 [0070] wireless transmission channel, for a given signal to noise ratio, may be most appropriate for matching modulation and coding scheme in which the SNR of the SNR corresponding to an interval, can be considered, different modulation suitable coding and different SNR intervals, this relationship depends on the system characteristics, different systems are not necessarily the same as the SNR range corresponding to the most appropriate modulation and coding scheme. 因此,可以通过多次系统测试得到当前系统中,无线传输信道的信噪比区间与传输信号的调制编码方式的对应关系。 Accordingly, the test system can be obtained by multiple current system, the modulation and coding scheme corresponding relationship between the transmission interval of the signal to noise ratio of the wireless transmission channel. 而无线传输信道中调制编码方式与信道的带宽也是对应的关系,各种编码方式具有相对应的信道带宽。 Relationship between the wireless transmission channel coding scheme and a modulation bandwidth of the channel is corresponding to various encoding systems have corresponding channel bandwidth. 因此,可根据每个调制编码方式获取相适应的所述无线传输信道的带宽。 Thus, the available bandwidth of the wireless transmission channel adapted according to each modulation and coding scheme.

[0071] 接着,所述信道质量监测单元12,在配置无线传输信道的信噪比区间与带宽的对应关系后,所述信道质量监测模块对信道质量进行监测。 [0071] Next, the channel quality monitoring unit 12, in the configuration of the wireless transmission channel corresponding relationship between SNR and bandwidth interval, the channel quality monitoring module to monitor the channel quality.

[0072] 所述信道质量监测单元12,进一步用于实时或周期监测所述无线传输信道的信噪比,判断监测到的信噪比是否在当前使用的调制编码方式所对应的信噪比区间内;其中,对信噪比进行实时监测,就是实时获得当前的信噪比的数值,并判断实时监测到的当前信噪比的数值是否处于当前使用的调制编码方式所对应的信噪比区间内。 [0072] The channel quality monitoring unit 12 is further used for monitoring real-time or periodic noise ratio of the wireless transmission channel, determining whether the monitored signal to noise ratio of the currently used modulation and coding scheme corresponding to the SNR range therein; wherein the real-time monitoring of the signal to noise ratio is obtained in real time the current value of the signal to noise ratio, and determines the value of the current real-time monitoring to-noise ratio is in the currently used modulation and coding scheme corresponding to the SNR range Inside. 对信噪比进行周期性的监测,就是在监测周期内,每隔预定时间,对信道的信噪比进行一次监测,得到当前时刻的真实信噪比,将上一次计算得到的计算信噪比和本次监测得到的真实信噪比,按照预定比重相加,得到的数值作为本次的计算信噪比;将最后一次加权得到的计算信噪比作为当前监测周期的信噪比。 Periodically monitoring the signal to noise ratio, is within the monitoring period, every predetermined time, signal to noise ratio of the channel, monitoring is conducted to obtain the real signal to noise ratio at the current time, the signal to noise ratio is calculated on a calculated this monitoring and real-noise ratio obtained by adding a predetermined proportion, as the present value obtained by calculating the SNR; the last calculated SNR obtained as weighted SNR of the current monitoring period. 当所述监测到的信噪比不在当前使用的调制编码方式所对应的信噪比区间时,将当前调制编码方式更改为所述信噪比所处的信噪比区间对应的调制编码方式,并根据更改后的调制编码方式获得相适应的所述无线传输信道的带宽。 When said monitoring signal to noise ratio is not a current modulation and coding scheme used for the SNR range corresponding to the modulation and coding scheme to change the current modulation and coding scheme in which the interval corresponding to the signal to noise ratio SNR and obtaining the channel bandwidth of the radio transmission adapted in accordance with the changed modulation and coding scheme.

[0073] 根据预先配置的信噪比区间与适合的调制编码方式的对应关系以及与带宽的对应关系,判断当前监测到的信噪比是否处于当前使用的调制编码方式所对应的信噪比区间。 [0073] The pre-configured corresponding relationship between SNR range with a suitable modulation and coding scheme and a corresponding relationship between bandwidth and determines whether the current monitor signal to noise ratio in the currently used modulation and coding scheme corresponding to the SNR range . 如果当前的信噪比处于当前的调制编码方式所对应的信噪比区间内,则不需要改变当前的调制编码方式,信道质量监测模块继续实时或周期监测所述无线传输信道当前的信噪比;而如果当前的信噪比不在当前的调制编码方式所对应的信噪比区间,则信道质量监测模块将当前调制编码方式更改为所述信噪比所处的信噪比区间对应的调制编码方式。 If the current SNR in the current modulation and coding scheme corresponding to the SNR range, there is no need to change the current modulation and coding scheme, channel quality monitoring module continues to monitor the real-time or period of the current wireless transmission channel SNR ; If the current SNR is not the current modulation and coding scheme corresponding to the signal to noise ratio range, channel quality monitoring module to change the current modulation and coding scheme which is the signal to noise ratio SNR of the corresponding modulation coding section the way. 并且,根据更改后的调制编码方式获得相适应的所述无线传输信道的带宽。 And obtaining the channel bandwidth of the radio transmission adapted in accordance with the changed modulation and coding scheme.

[0074] 所述传输速率控制单元13,进一步用于向每个数据采集器发送携带所述最大采集速率的速率调节消息,从而使所述数据采集器,通过解析速率调节消息,获取所述消息中携带的每个数据采集器所对应的最大采集速率,调整发送对应采集数据的最大采集速率。 [0074] The transmission rate control unit 13, is further transmitted to the rate for each data collector carries the maximum acquisition rate adjustment message, so that the data collector, by analyzing the rate adjustment message to obtain the message carried in each data acquisition device corresponding to the maximum acquisition rate, to adjust the transmission rate corresponding to the maximum acquisition data collection. [0075]如图4所示,本发明中的数据采集系统40包括上述实施例中所描述的无线收发装置10及分别与所述无线收发装置相连接的一个或多个数据采集器20,所述无线收发装置10 可以对所述数据采集器20撷取的采集数据进行发送。 [0075] As shown, the data acquisition system of the present invention includes a radio transceiver 404 described in the above embodiment 10, respectively, and a radio transceiver connected to the one or more data collection unit 20, the said radio apparatus 10 can transmit the acquired data 20 to retrieve the data collector.

[0076]所述数据采集器20,进一步包括:数据发送单元21,用于撷取采集数据并传输给所述无线收发装置进行发送;以及 [0076] The data collector 20, further comprising: a data transmitting unit 21, for retrieving data collection and transmission to the radio transceiver for transmission; and

[0077]传输速率调整单元22,用于接收所述无线收发装置的传输速率控制单元发送的速率调节消息,并根据所述速率调节消息将所述数据发送单元的最大采集速率设置为所述速率调节消息中携带的最大采集速率。 [0077] The transmission rate adjustment unit 22, a transmission rate of the transmission rate unit for receiving the radio control message adjustment, and adjust the rate of message according to the data transmission unit to the maximum rate acquisition rate the maximum acquisition rate adjustment carried messages.

[0078]所述每个数据采集器的传输速率调整单元22,判断是否有来自与之相连的无线收发装置10的速率调节消息,如果有,数据采集器20的传输速率调整单元22将自身的最大采集速率设置成消息中携带的最大采集速率。 [0078] The transmission rate of each data acquisition adjustment unit 22 determines whether a rate of the radio 10 connected thereto from the adjustment message, if there is, the transmission rate of the data acquisition unit 20 adjusting unit 22 itself the maximum acquisition rate set to a maximum acquisition rate carried in the message.

[0079]上述数据采集系统40与本发明的自动调节无线传输速率的数据采集方法相对应, 具体细节可相互参照。 [0079] The data acquisition system 40 and automatically adjust the data collection method of the present invention, the wireless transmission rate corresponding to the specific details of the cross-referenced.

[0080]以上所述仅为本发明的实施例而已,并不用于限制本发明,对于本领域的技术人员来说,本发明可以有各种更改和变化。 [0080] The above embodiments of the invention only, but not intended to limit the invention to those skilled in the art, the present invention may have various changes and variations. 凡在本发明的精神和原则之内,所作的任何修改、 等同替换、改进等,均应包含在本发明的权利要求范围之内。 Any modification within the spirit and principle of the present invention, made, equivalent substitutions, improvements, etc., should be included within the scope of the invention as claimed in claims.

Claims (9)

1. 一种自动调节无线传输速率的数据采集方法,其特征在于,包括: 获取传输采集数据的无线传输信道当前的带宽; 根据所述无线传输信道当前的带宽及为用于数据采集的一个或多个数据采集器分别配置的带宽比重获取每个数据采集器的最大采集速率,其中,所述带宽比重由所述数据采集器的服务等级决定; 根据每个数据采集器的最大采集速率调整通过所述无线传输信道对每个数据采集器的采集数据的发送; 向每个数据采集器发送携带所述最大采集速率的速率调节消息,从而使所述数据采集器根据所述速率调节消息调节发送对应采集数据的最大采集速率。 An automatic adjustment method for wireless transmission of data collection rate, wherein, comprising: obtaining a wireless transmission channel for transmitting data acquired current bandwidth; according to the wireless transmission channel and a current bandwidth for data acquisition, or the proportion of the bandwidth of the plurality of data collectors are arranged each data acquisition unit acquires the maximum sampling rate, wherein the bandwidth of the service class determined by the proportion of the data acquisition; adjusted maximum acquisition rate of each data acquisition by the wireless transmission channel for transmitting the collected data for each data acquisition; transmitting to each of said data collector carries the maximum rate adjustment message acquisition rate, thereby adjusting the data acquisition message according to the transmission rate adjustment corresponding to the maximum acquisition rate data collection.
2. 根据权利要求1所述的方法,其特征在于,获取所述无线传输信道当前的带宽,包括: 配置无线传输信道的信噪比区间与带宽的对应关系; 对传输采集数据的无线传输信道的信噪比进行监测,根据所述信噪比检测对应的信噪比区间,再结合所述信噪比区间与带宽的对应关系获取所述无线传输信道当前的带宽。 2. The method according to claim 1, wherein acquiring the current wireless transmission channel bandwidth, comprising: a correspondence relationship configuration of the wireless transmission channel segment SNR and bandwidth; wireless transmission channel the transmission data collected monitoring signal to noise ratio, signal to noise ratio based on the SNR corresponding to the detection range, combined range corresponding relationship between the SNR and bandwidth of the wireless transmission channel acquired current bandwidth.
3. 根据权利要求2所述的方法,其特征在于,配置无线传输信道的信噪比区间与带宽的对应关系,包括: 通过系统测试获取所述无线传输信道在不同信道质量下的一个或多个信噪比及其相应适配的在所述无线传输信道中传输信号的调制编码方式,从而得到不同的信噪比区间与适配的调制编码方式的对应关系; 根据每个调制编码方式获取相适应的所述无线传输信道的带宽,从而建立不同的信噪比区间与适配的调制编码方式及所述无线传输信道的带宽的对应关系。 3. The method according to claim 2, wherein the corresponding relationship between the configuration of the wireless transmission channel segment SNR and bandwidth, comprising: obtaining a wireless transmission channel in a channel quality by different test systems or a signal to noise ratio and corresponding adapted coding scheme in the modulation radio channel transmission signal transmission, whereby different SNR range corresponding relationship between the modulation and coding scheme adapted; obtained according to each modulation coding scheme corresponding relationship between the bandwidth adapted to the bandwidth of the wireless transmission channel, thereby establishing different SNR range with modulation and coding scheme and adapting the radio transmission channel.
4. 根据权利要求3所述的方法,其特征在于,对传输采集数据的无线传输信道的信噪比进行监测,根据所述信噪比检测对应的信噪比区间,再结合所述信噪比区间与带宽的对应关系获取所述无线传输信道当前的带宽,包括: 实时或周期监测所述无线传输信道的信噪比,并判断监测到的信噪比是否在当前使用的调制编码方式所对应的信噪比区间内; 当所述监测到的信噪比不在当前使用的调制编码方式所对应的信噪比区间时,将当前调制编码方式更改为所述信噪比所处的信噪比区间对应的调制编码方式,并根据更改后的调制编码方式获得相适应的所述无线传输信道的带宽。 4. The method according to claim 3, characterized in that the wireless transmission channel of the transmission data acquired to monitor the SNR, signal to noise ratio based on the SNR corresponding to the detection range, combined with the signal to noise acquiring the current wireless transmission channel bandwidth, comprising a bandwidth range than the corresponding relationship: SNR or real-time monitoring period of the wireless transmission channel, and determines whether the monitor signal to noise ratio of the current modulation and coding scheme used in the corresponding to the SNR range; when the signal to noise ratio is not monitored current modulation and coding scheme used for the SNR range corresponding to the current modulation and coding scheme to change the signal to noise ratio in which the signal to noise modulation and coding scheme than the interval corresponding to, and adapted to obtain the bandwidth of the wireless transmission channel in accordance with the changed modulation and coding scheme.
5. -种无线收发装置,与一个或多个数据采集器相连接,其特征在于,包括: 无线发送模块,用于将接收到的各个数据采集器发来的采集数据,根据每个数据采集器的相应最大采集速率通过无线传输信道进行发送; 信道质量监测单元,用于获取所述无线传输信道当前的带宽; 传输速率控制单元,用于根据所述无线传输信道当前的带宽及为所述一个或多个数据采集器分别配置的带宽比重获取每个数据采集器的最大采集速率,并将所述最大采集速率发送给相应的数据采集器以使相应的数据采集器调整各自向所述无线发送模块发送所述采集数据的最大采集速率,其中,所述带宽比重由所述数据采集器的服务等级决定,传输速率控制单元还用于向每个数据采集器发送携带所述最大采集速率的速率调节消息,从而使所述数据采集器根据所述速率调节消息调整 5. - kind of radio, is connected to one or more data acquisition, characterized in that, comprising: a wireless transmitter, the received data is used to collect the respective data acquisition sent, in accordance with each data acquisition the respective maximum acquisition rate is transmitted over a wireless transmission channel; channel quality monitoring unit, configured to acquire the wireless transmission channel to the bandwidth; transmission rate control unit configured to the current bandwidth and transmission channel according to the radio the proportion of the bandwidth of one or more data collectors are arranged each data acquisition unit acquires a maximum acquisition rate, and transmits the maximum acquisition rate corresponding to the data collector to the corresponding data acquisition to adjust the respective wireless transmitting means for transmitting the maximum acquisition rate of the data acquisition, wherein the proportion of the bandwidth determined by the service level of the data collection, the transmission rate control unit is further configured to send each data collector carries the maximum acquisition rate rate adjustment message, so that the data acquisition rate is adjusted according to the adjustment message 发送对应采集数据的最大采集速率。 The maximum acquisition rate corresponding to the transmission data collection.
6. 根据权利要求5所述的无线收发装置,其特征在于,所述信道质量监测单元,进一步用于: 配置无线传输信道的信噪比区间与带宽的对应关系; 对传输采集数据的无线传输信道的信噪比进行监测,根据所述信噪比检测对应的信噪比区间,再结合所述信噪比区间与带宽的对应关系获取所述无线传输信道当前的带宽。 6. The radio apparatus according to claim 5, wherein the channel quality monitoring unit is further configured to: configure the radio transmission channel corresponding relationship between SNR and bandwidth interval; wireless transmission of transmission data collected monitoring the channel SNR, signal to noise ratio based on the SNR corresponding to the detection range, combined range corresponding relationship between the SNR and bandwidth of the wireless transmission channel acquired current bandwidth.
7. 根据权利要求6所述的无线收发装置,其特征在于,所述信道质量监测单元,进一步用于: 通过系统测试获取所述无线传输信道在不同信道质量下的一个或多个信噪比及其相应适配的在所述无线传输信道中传输信号的调制编码方式,从而得到不同的信噪比区间与适配的调制编码方式的对应关系; 根据每个调制编码方式获取相适应的所述无线传输信道的带宽,从而建立不同的信噪比区间与适配的调制编码方式及所述无线传输信道的带宽的对应关系。 7. The radio apparatus according to claim 6, wherein the channel quality monitoring unit is further configured to: acquire a radio transmission channel at the different channel quality or signal to noise ratio by a plurality of system test and their corresponding adaptation of the modulation and coding scheme in the radio channel transmission signal transmission, whereby different SNR range corresponding relationship between the modulation and coding scheme adapted; adapted to obtain the modulation and coding scheme according to each said bandwidth of the wireless transmission channel, thereby establishing different SNR range corresponding relationship between the modulation and coding scheme and adapting the radio transmission channel bandwidth.
8. 根据权利要求7所述的无线收发装置,其特征在于,所述信道质量监测单元,进一步用于: 实时或周期监测所述无线传输信道的信噪比,并判断监测到的信噪比是否在当前使用的调制编码方式所对应的信噪比区间内; 当所述监测到的信噪比不在当前使用的调制编码方式所对应的信噪比区间时,将当前调制编码方式更改为所述信噪比所处的信噪比区间对应的调制编码方式,并根据更改后的调制编码方式获得相适应的所述无线传输信道的带宽。 8. A radio apparatus according to claim 7, wherein the channel quality monitoring unit is further configured to: monitor in real-time or periodic noise ratio of the wireless transmission channel, and determines whether the monitored signal to noise ratio whether the currently used modulation and coding scheme corresponding to the SNR range; when the signal to noise ratio is not monitored current modulation and coding scheme used for the SNR range corresponding to the change of the current modulation and coding scheme said modulation and coding scheme in which the SNR signal to noise ratio corresponding to the section, and obtains the channel bandwidth of the radio transmission adapted in accordance with the changed modulation and coding scheme.
9. 一种数据采集系统,包括:根据权利要求5至8中任一项所述的无线收发装置及分别与所述无线收发装置相连接的一个或多个数据采集器,其中, 所述数据采集器,进一步包括: 数据发送单元,用于撷取采集数据并传输给所述无线收发装置进行发送;以及传输速率调整单元,用于接收所述无线收发装置的传输速率控制单元发送的速率调节消息,并根据所述速率调节消息将所述数据发送单元的最大采集速率设置为所述速率调节消息中携带的最大采集速率。 9. A data collection system, comprising: a radio apparatus according to claim 5 to 8 and any one of the one or more data collectors respectively connected to the radio transceiver, wherein said data collector, further comprising: a data transmission unit for retrieving the data collection and transmission to the radio transceiver for transmission; and a transmission rate adjusting unit, for receiving a transmission rate of said radio transmission unit to control the rate of adjustment message, and the message according to the adjusted data rate of the transmission unit is set to the maximum acquisition rate of the acquisition rate of the maximum rate modifier carried in the message.
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