CN113205918B - Communication transmission cable - Google Patents
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- CN113205918B CN113205918BCN202110484202.8ACN202110484202ACN113205918BCN 113205918 BCN113205918 BCN 113205918BCN 202110484202 ACN202110484202 ACN 202110484202ACN 113205918 BCN113205918 BCN 113205918B
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Abstract
Translated fromChinese
Description
Translated fromChinese技术领域technical field
本发明涉及通讯技术领域，更具体地说，涉及一种通信传输电缆。The present invention relates to the technical field of communication, and more specifically relates to a communication transmission cable.
背景技术Background technique
随着电力电子技术的迅速发展，电力电子装置正在向着高频化、大容量、小体积的方向迈进，其电磁环境变得愈加恶劣，电磁干扰日益严重，电力电子装置间的通信经常因受到电磁干扰而出现误码。With the rapid development of power electronic technology, power electronic devices are moving towards high frequency, large capacity, and small volume. Error due to interference.
现有通讯方式(例如RS-485、CAN等)采用平衡驱动和差分接收的方式来提高抗电磁干扰能力，并采用通信双绞线作为传输介质。但在某些场合下，需要电源双绞线(或地线)随通信双绞线一起连接至接收端。例如图1～图2所示：图1中使用一对通信双绞线传递承载通信数据的一对差分信号A、B，同时使用一对电源双绞线传递电源正负极信号VCC、GND；图2中使用一对通信双绞线传递承载通信数据的一对差分信号A、B，同时使用一根GND线即地线连接至接收端。Existing communication methods (such as RS-485, CAN, etc.) use balanced drive and differential reception to improve the ability to resist electromagnetic interference, and use communication twisted-pair wires as the transmission medium. But in some occasions, it is necessary to connect the power twisted pair (or ground wire) to the receiving end together with the communication twisted pair. For example, as shown in Figures 1 to 2: in Figure 1, a pair of communication twisted-pair wires are used to transmit a pair of differential signals A and B carrying communication data, and a pair of power supply twisted-pair wires are used to transmit power supply positive and negative signals VCC and GND; In Figure 2, a pair of communication twisted-pair wires is used to transmit a pair of differential signals A and B carrying communication data, and a GND wire, ie, a ground wire, is used to connect to the receiving end.
在电源双绞线(或地线)随通信双绞线一起连接至接收端的场合下，受电磁干扰，可能出现通信双绞线中的两根信号线(例如图1或图2中的A信号线和B信号线)对地电压幅值均超出标准范围(该标准范围一般为-7V～+12V)的情况，此时仍会导致通信出现误码。In the case where the power twisted pair (or ground wire) is connected to the receiving end together with the communication twisted pair, due to electromagnetic interference, two signal lines in the communication twisted pair may appear (such as the A signal in Figure 1 or Figure 2) Line and B signal line) to the ground voltage amplitude exceeds the standard range (the standard range is generally -7V ~ +12V), at this time will still lead to communication errors.
发明内容Contents of the invention
有鉴于此，本发明提供一种通信传输电缆，以降低通信的误码率。In view of this, the present invention provides a communication transmission cable to reduce the bit error rate of communication.
一种通信传输电缆，包含3n+m对双绞线，分别是：n对通信双绞线、m对电源双绞线和2n对自定义双绞线，n≥m≥1；A communication transmission cable, including 3n+m pairs of twisted pairs, namely: n pairs of communication twisted pairs, m pairs of power twisted pairs and 2n pairs of custom twisted pairs, n≥m≥1;
所述3n+m对双绞线划分为m组，第i组包含1对电源双绞线、xi对通信双绞线和2xi对自定义双绞线；i＝1、2、…、m，xi≥1，x1+x2+…+xm＝n；The 3n+m pairs of twisted pairs are divided into m groups, and the i-th group includes 1 pair of power twisted pairs, xi pairs of communication twisted pairs and 2xi pairs of custom twisted pairs; i=1, 2, ..., m, xi ≥ 1, x1 +x2 +...+xm = n;
在第i组内：电源双绞线用于随第s对通信双绞线一起连接至第s个接收端，第s对自定义双绞线中的第一根线与第s对通信双绞线中的第一根线并联，第s对自定义双绞线中的第二根线与电源双绞线中的GND线并联，第xi+s对自定义双绞线中的第一根线与电源双绞线中的VCC线并联，第xi+s对自定义双绞线中的第二根线与第s对通信双绞线中的第二根线并联；s＝1、2、…、xi。In group i: the power twisted pair is used to connect to the sth receiving end together with the sth pair of communication twisted pair, and the first wire in the sth pair of custom twisted pair is connected to the sth pair of communication twisted pair The first wire in the line is connected in parallel, the second wire in the sth custom twisted pair is connected in parallel with the GND line in the power twisted pair, and the first in the xi +s custom twisted pair The line is connected in parallel with the VCC line in the power supply twisted pair, and the second line in thexi +s custom twisted pair is connected in parallel with the second line in the sth communication twisted pair; s=1, 2 , ..., xi .
可选的，对于上一通信传输电缆，在第i组内：同一对双绞线内的两根线等长；当需要降低第s对通信双绞线中的第一根线对地电压时，设置第s对自定义双绞线与第s对通信双绞线不等长，否则设置第s对自定义双绞线与第s对通信双绞线等长；当需要降低第s对通信双绞线中的第二根线对地电压时，设置第xi+s对自定义双绞线与第s对通信双绞线不等长，否则设置第xi+s对自定义双绞线与第s对通信双绞线等长。Optionally, for the last communication transmission cable, in the i-th group: the two wires in the same pair of twisted pairs are of equal length; when it is necessary to reduce the ground voltage of the first wire in the sth pair of communication twisted pairs , set the sth custom twisted pair and the sth pair of communication twisted pair to be unequal in length, otherwise set the sth custom twisted pair and the sth pair of communication twisted pair to be equal in length; when it is necessary to reduce the sth pair of communication When the second wire in the twisted pair is at ground voltage, set the xi +s custom twisted pair to be unequal to the s communication twisted pair, otherwise set the xi +s custom twisted pair The length of the line is equal to that of the sth pair of communication twisted pair.
一种通信传输电缆，包含3n+m对双绞线，分别是：n对通信双绞线、m对电源双绞线和2n对自定义双绞线，n≥m≥1；A communication transmission cable, including 3n+m pairs of twisted pairs, namely: n pairs of communication twisted pairs, m pairs of power twisted pairs and 2n pairs of custom twisted pairs, n≥m≥1;
所述3n+m对双绞线划分为m组，第i组包含1对电源双绞线、xi对通信双绞线和2xi对自定义双绞线；i＝1、2、…、m，xi≥1，x1+x2+…+xm＝n；The 3n+m pairs of twisted pairs are divided into m groups, and the i-th group includes 1 pair of power twisted pairs, xi pairs of communication twisted pairs and 2xi pairs of custom twisted pairs; i=1, 2, ..., m, xi ≥ 1, x1 + x2 +...+xm = n;
在第i组内：电源双绞线用于随第s对通信双绞线一起连接至第s个接收端，第s对自定义双绞线中的第一根线与第s对通信双绞线中的第一根线并联，第s对自定义双绞线中的第二根线、第xi+s对自定义双绞线中的第一根线以及电源双绞线中的GND线三者并联，第s对通信双绞线中的第二根线与第xi+s对自定义双绞线中的第二根线并联；s＝1、2、…、xi。In group i: the power twisted pair is used to connect to the sth receiving end together with the sth pair of communication twisted pair, and the first wire in the sth pair of custom twisted pair is connected to the sth pair of communication twisted pair The first wire in the line is connected in parallel, the second wire in the sth custom twisted pair, the first wire in the xi +s custom twisted pair, and the GND wire in the power twisted pair The three are connected in parallel, and the second wire of the sth communication twisted pair is connected in parallel with the second wire of the xi+ s custom twisted pair; s=1, 2, ..., xi .
可选的，对于上一通信传输电缆，在第i组内：同一对双绞线内的两根线等长；当需要降低第s对通信双绞线中的第一根线对地电压时，设置第s对自定义双绞线与第s对通信双绞线不等长，否则设置第s对自定义双绞线与第s对通信双绞线等长；当需要降低第s对通信双绞线中的第二根线对地电压时，设置第xi+s对自定义双绞线与第s对通信双绞线不等长，否则设置第xi+s对自定义双绞线与第s对通信双绞线等长。Optionally, for the last communication transmission cable, in the i-th group: the two wires in the same pair of twisted pairs are of equal length; when it is necessary to reduce the ground voltage of the first wire in the sth pair of communication twisted pairs , set the sth custom twisted pair and the sth pair of communication twisted pair to be unequal in length, otherwise set the sth custom twisted pair and the sth pair of communication twisted pair to be equal in length; when it is necessary to reduce the sth pair of communication When the second wire in the twisted pair is at ground voltage, set the xi +s custom twisted pair to be unequal to the s communication twisted pair, otherwise set the xi +s custom twisted pair The length of the line is equal to that of the sth pair of communication twisted pair.
一种通信传输电缆，包含3n+m对双绞线，分别是：n对通信双绞线、m对电源双绞线和2n对自定义双绞线，n≥m≥1；A communication transmission cable, including 3n+m pairs of twisted pairs, namely: n pairs of communication twisted pairs, m pairs of power twisted pairs and 2n pairs of custom twisted pairs, n≥m≥1;
所述3n+m对双绞线划分为m组，第i组包含1对电源双绞线、xi对通信双绞线和2xi对自定义双绞线；i＝1、2、…、m，xi≥1，x1+x2+…+xm＝n；The 3n+m pairs of twisted pairs are divided into m groups, and the i-th group includes 1 pair of power twisted pairs, xi pairs of communication twisted pairs and 2xi pairs of custom twisted pairs; i=1, 2, ..., m, xi ≥ 1, x1 + x2 +...+xm = n;
在第i组内：电源双绞线用于随第s对通信双绞线一起连接至第s个接收端，第s对自定义双绞线中的第一根线与第s对通信双绞线中的第一根线并联，第s对自定义双绞线中的第二根线、第xi+s对自定义双绞线中的第一根线与电源双绞线中的VCC线三者并联，第xi+s对自定义双绞线中的第二根线与第s对通信双绞线中的第二根线并联；s＝1、2、…、xi。In group i: the power twisted pair is used to connect to the sth receiving end together with the sth pair of communication twisted pair, and the first wire in the sth pair of custom twisted pair is connected to the sth pair of communication twisted pair The first wire in the line is connected in parallel, the second wire in the sth custom twisted pair, the first wire in the xi +s custom twisted pair and the VCC wire in the power twisted pair The three are connected in parallel, the second wire of the xi +s custom twisted pair is connected in parallel with the second wire of the s communication twisted pair; s=1, 2, ..., xi .
可选的，对于上一通信传输电缆，在第i组内：同一对双绞线内的两根线等长；当需要降低第s对通信双绞线中的第一根线对地电压时，设置第s对自定义双绞线与第s对通信双绞线不等长，否则设置第s对自定义双绞线与第s对通信双绞线等长；当需要降低第s对通信双绞线中的第二根线对地电压时，设置第xi+s对自定义双绞线与第s对通信双绞线不等长，否则设置第xi+s对自定义双绞线与第s对通信双绞线等长。Optionally, for the last communication transmission cable, in the i-th group: the two wires in the same pair of twisted pairs are of equal length; when it is necessary to reduce the ground voltage of the first wire in the sth pair of communication twisted pairs , set the sth custom twisted pair and the sth pair of communication twisted pair to be unequal in length, otherwise set the sth custom twisted pair and the sth pair of communication twisted pair to be equal in length; when it is necessary to reduce the sth pair of communication When the second wire in the twisted pair is at ground voltage, set the xi +s custom twisted pair to be unequal to the s communication twisted pair, otherwise set the xi +s custom twisted pair The length of the line is equal to that of the sth pair of communication twisted pair.
一种通信传输电缆，包含3n对双绞线和m根GND线，所述3n对双绞线分别是：n对通信双绞线和2n对自定义双绞线，n≥m≥1；A communication transmission cable, comprising 3n pairs of twisted pairs and m GND wires, the 3n pairs of twisted pairs are: n pairs of communication twisted pairs and 2n pairs of custom twisted pairs, n≥m≥1;
所述3n对双绞线和m根GND线划分为m组，第i组包含1根GND线、xi对通信双绞线和2xi对自定义双绞线；i＝1、2、…、m，xi≥1，x1+x2+…+xm＝n；The 3n pairs of twisted pairs and m GND lines are divided into m groups, and the i-th group includes 1 GND line, xi pairs of communication twisted pairs and 2xi pairs of custom twisted pairs; i=1, 2, ... , m, xi ≥ 1, x1 +x2 +...+xm = n;
在第i组内：GND线用于随第s对通信双绞线一起连接至第s个接收端，第s对自定义双绞线中的第一根线与第s对通信双绞线中的第一根线并联，第s对通信双绞线中的第二根线与第xi+s对自定义双绞线中的第二根线并联，第s对自定义双绞线中的第二根线、第xi+s对自定义双绞线中的第一根线与与GND线三者并联；s＝1、2、…、xi。In the i-th group: GND line is used to connect to the s-th receiving end together with the s-th pair of communication twisted-pair wires, the first wire in the s-th pair of custom twisted-pair wires is connected to the s-th pair The first wire of the sth pair of communication twisted pairs is connected in parallel, the second wire of the sth pair of communication twisted pairs is connected in parallel with the second wire of thexi +s pair of custom twisted pairs, and the second wire of the sth pair of custom twisted pairs The second wire, the first wire of the xi +s custom twisted pair are connected in parallel with the GND wire; s=1, 2, ..., xi .
可选的，对于上一通信传输电缆，在第i组内：同一对双绞线内的两根线等长；当需要降低第s对通信双绞线中的第一根线对地电压时，设置第s对自定义双绞线与第s对通信双绞线不等长，否则设置第s对自定义双绞线与第s对通信双绞线等长；当需要降低第s对通信双绞线中的第二根线对地电压时，设置第xi+s对自定义双绞线与第s对通信双绞线不等长，否则设置第xi+s对自定义双绞线与第s对通信双绞线等长。Optionally, for the last communication transmission cable, in the i-th group: the two wires in the same pair of twisted pairs are of equal length; when it is necessary to reduce the ground voltage of the first wire in the sth pair of communication twisted pairs , set the sth custom twisted pair and the sth pair of communication twisted pair to be unequal in length, otherwise set the sth custom twisted pair and the sth pair of communication twisted pair to be equal in length; when it is necessary to reduce the sth pair of communication When the second wire in the twisted pair is at ground voltage, set the xi +s custom twisted pair to be unequal to the s communication twisted pair, otherwise set the xi +s custom twisted pair The length of the line is equal to that of the sth pair of communication twisted pair.
一种通信传输电缆，包括：上述任意多种通信传输电缆中所包含的所有线。A communication transmission cable, comprising: all wires contained in any of the above-mentioned communication transmission cables.
可选的，所述通信传输电缆采用RS-485或CAN通讯方式。Optionally, the communication transmission cable adopts RS-485 or CAN communication mode.
从上述的技术方案可以看出，本发明在接收端原有通信双绞线和电源双绞线(或地线)的基础上，增加双绞线将信号线与电源线绞合，利用双绞线能够抑制相绞合的两根线受到外界电磁干扰的特性，来克服因电磁干扰所导致的信号线对地电压幅值超出标准范围的问题，从而提升抗电磁干扰能力，降低通信的误码率。It can be seen from the above-mentioned technical scheme that the present invention adds a twisted pair on the basis of the original communication twisted pair and power twisted pair (or ground wire) at the receiving end to twist the signal line and the power line, and utilizes the twisted pair The wire can suppress the characteristics of the two twisted wires from external electromagnetic interference, so as to overcome the problem that the voltage amplitude of the signal line to ground exceeds the standard range caused by electromagnetic interference, thereby improving the anti-electromagnetic interference ability and reducing the bit error of communication Rate.
附图说明Description of drawings
为了更清楚地说明本发明实施例或现有技术中的技术方案，下面将对实施例或现有技术描述中所需要使用的附图作简单地介绍，显而易见地，下面描述中的附图仅仅是本发明的一些实施例，对于本领域普通技术人员来讲，在不付出创造性劳动的前提下，还可以根据这些附图获得其他的附图。In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings that need to be used in the description of the embodiments or the prior art. Obviously, the accompanying drawings in the following description are only These are some embodiments of the present invention. Those skilled in the art can also obtain other drawings based on these drawings without creative work.
图1为现有技术公开的一种通信传输电缆内部结构示意图；Fig. 1 is a schematic diagram of the internal structure of a communication transmission cable disclosed in the prior art;
图2为现有技术公开的又一种通信传输电缆内部结构示意图；Fig. 2 is a schematic diagram of the internal structure of another communication transmission cable disclosed in the prior art;
图3为本发明实施例1公开的一种通信传输电缆内部结构示意图；FIG. 3 is a schematic diagram of the internal structure of a communication transmission cable disclosed in Embodiment 1 of the present invention;
图4为本发明实施例1公开的又一种通信传输电缆内部结构示意图；FIG. 4 is a schematic diagram of the internal structure of another communication transmission cable disclosed in Embodiment 1 of the present invention;
图5为本发明实施例1公开的又一种通信传输电缆内部结构示意图；5 is a schematic diagram of the internal structure of another communication transmission cable disclosed in Embodiment 1 of the present invention;
图6为本发明实施例2公开的一种通信传输电缆内部结构示意图；6 is a schematic diagram of the internal structure of a communication transmission cable disclosed in
图7为本发明实施例3公开的一种通信传输电缆内部结构示意图；7 is a schematic diagram of the internal structure of a communication transmission cable disclosed in Embodiment 3 of the present invention;
图8为本发明实施例4公开的一种通信传输电缆内部结构示意图。Fig. 8 is a schematic diagram of the internal structure of a communication transmission cable disclosed in Embodiment 4 of the present invention.
具体实施方式Detailed ways
下面将结合本发明实施例中的附图，对本发明实施例中的技术方案进行清楚、完整地描述，显然，所描述的实施例仅仅是本发明一部分实施例，而不是全部的实施例。基于本发明中的实施例，本领域普通技术人员在没有做出创造性劳动前提下所获得的所有其他实施例，都属于本发明保护的范围。The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.
本发明实施例1：Embodiment 1 of the present invention:
本发明实施例1公开了一种通信传输电缆，包含3n+m对双绞线，分别是：n对通信双绞线、m对电源双绞线和2n对自定义双绞线，n≥m≥1。图3、图4和图5分别为本发明实施例1的三个示例，其中，图3是以n＝m＝1作为示例，图4是以n＝m＝2作为示例，图5是以n＝2、m＝1作为示例。Embodiment 1 of the present invention discloses a communication transmission cable, including 3n+m pairs of twisted pairs, which are: n pairs of communication twisted pairs, m pairs of power supply twisted pairs and 2n pairs of custom twisted pairs, n≥m ≥1. Figure 3, Figure 4 and Figure 5 are three examples of Embodiment 1 of the present invention, wherein Figure 3 is an example of n=m=1, Figure 4 is an example of n=m=2, and Figure 5 is an example of n=2, m=1 as an example.
在本发明实施例1中，所述3n+m对双绞线划分为m组，第i组包含1对电源双绞线、xi对通信双绞线和2xi对自定义双绞线；i＝1、2、…、m，xi≥1，x1+x2+…+xm＝n；In Embodiment 1 of the present invention, the 3n+m pairs of twisted pairs are divided into m groups, and the i-th group includes 1 pair of power supply twisted pairs, xi pairs of communication twisted pairs, and 2xi pairs of custom twisted pairs; i=1, 2, ..., m, xi ≥ 1, x1 + x2 + ... + xm = n;
在第i组内：电源双绞线用于随第s对通信双绞线一起连接至第s个接收端，第s对自定义双绞线中的第一根线与第s对通信双绞线中的第一根线并联(即第s对自定义双绞线中的第一根线与第s对通信双绞线中的第一根线首首相连、尾尾亦相连)，第s对自定义双绞线中的第二根线与电源双绞线中的GND线并联，第xi+s对自定义双绞线中的第一根线与电源双绞线中的VCC线并联，第xi+s对自定义双绞线中的第二根线与第s对通信双绞线中的第二根线并联；s＝1、2、…、xi。In group i: the power twisted pair is used to connect to the sth receiving end together with the sth pair of communication twisted pair, and the first wire in the sth pair of custom twisted pair is connected to the sth pair of communication twisted pair The first wire in the line is connected in parallel (that is, the first wire of the sth custom twisted pair is connected with the first wire of the sth pair of communication twisted pair, and the tail is also connected), the sth The second wire in the custom twisted pair is connected in parallel with the GND wire in the power twisted pair, and the first wire in the xi +s custom twisted pair is connected in parallel with the VCC wire in the power twisted pair , the second wire of thexi +s-th pair of custom twisted-pair wires is connected in parallel with the second wire of the s-th pair of communication twisted-pair wires; s=1, 2, ..., xi .
本发明实施例1适用于一对电源双绞线随一对通信双绞线一起连接至一个接收端，不同接收端使用独立的通信双绞线，不同接收端可以使用独立的电源双绞线也可以共用同一对电源双绞线的场合下。对于该场合下的每一个接收端，本发明实施例1的技术方案实质就是在该接收端原有使用的通信双绞线和电源双绞线的基础上，增加双绞线将信号线与电源线(通信双绞线中的两根线均属于信号线，电源双绞线中的两根线均属于电源线)绞合，利用双绞线能够抑制相绞合的两根线受到外界电磁干扰的特性，来克服因电磁干扰所导致的信号线对地电压幅值超出标准范围的问题，从而提升抗电磁干扰能力，降低通信的误码率。然后，将连接至至少一个接收端的线束通过捆扎或其他方式封装成一条电缆，便是本发明实施例1公开的通信传输电缆。可以说，本发明实施例1公开的通信传输电缆就是在传统通信传输电缆原有的n对通信双绞线和m对电源双绞线的基础上，增加了2n对自定义双绞线得到的。Embodiment 1 of the present invention is applicable to a pair of power supply twisted pairs connected to a receiving end together with a pair of communication twisted pairs. Different receiving ends use independent communication twisted pairs, and different receiving ends can use independent power twisted pairs. It is possible to share the same pair of twisted-pair power cables. For each receiving end in this situation, the essence of the technical solution in Embodiment 1 of the present invention is to add a twisted pair to connect the signal line and the power supply on the basis of the original communication twisted pair and power twisted pair used by the receiving end. Wires (the two wires in the communication twisted pair belong to the signal wire, and the two wires in the power twisted pair belong to the power wire) are twisted, and the twisted pair can suppress the two twisted wires from being subjected to external electromagnetic interference To overcome the problem that the signal line-to-ground voltage amplitude exceeds the standard range caused by electromagnetic interference, thereby improving the ability to resist electromagnetic interference and reducing the bit error rate of communication. Then, the wire harness connected to at least one receiving end is packaged into a cable by bundling or other means, which is the communication transmission cable disclosed in Embodiment 1 of the present invention. It can be said that the communication transmission cable disclosed in Embodiment 1 of the present invention is obtained by adding 2n pairs of custom twisted pairs on the basis of the original n pairs of communication twisted pairs and m pairs of power twisted pairs of traditional communication transmission cables. .
下面以图3为例，对本发明实施例1的工作原理进行详述。The working principle of Embodiment 1 of the present invention will be described in detail below by taking FIG. 3 as an example.
图3示出的通信传输电缆仅包含连接至一个接收端的线束，共4对双绞线，其中：双绞线1为通信传输电缆中原有的一对通信双绞线，用于传递承载通信数据的一对差分信号A、B；双绞线2为该通信传输电缆中原有的一对电源双绞线，用于传递电源正负极信号VCC、GND；双绞线3和双绞线4为该通信传输电缆中增加的2对自定义双绞线。The communication transmission cable shown in Figure 3 only includes a wire harness connected to one receiving end, a total of 4 pairs of twisted pairs, wherein: twisted pair 1 is the original pair of communication twisted pairs in the communication transmission cable, used to transmit and carry communication data A pair of differential signals A and B;
双绞线3中的两根线分别与双绞线1中的A信号线和双绞线2中的GND线并联，从而双绞线3相当于实现了将A信号线与GND线绞合。双绞线4中的两根线分别与双绞线1中的B信号线和双绞线2中的VCC线并联，从而双绞线4相当于实现了将B信号线与VCC线绞合。由于双绞线具有抑制相绞合的两根线受到外界电磁干扰的特性，所以通过双绞线3能够克服因电磁干扰所导致的A信号线对GND的电压幅值超出标准范围的问题，同时通过双绞线4能够克服因电磁干扰所导致的B信号线对VCC的电压幅值超出标准范围的问题；而电源双绞线又抑制了因电磁干扰所导致的VCC线和GND线的电压幅值超出标准范围，那么综合双绞线4和电源双绞线的效果就保证了B信号线对GND的电压幅值不超出标准范围。由此可见，双绞线1中的一对差分信号A、B依靠双绞线3和双绞线4实现了对GND的电压幅值均不超出标准范围，从而提升了抗电磁干扰能力，降低了通信的误码率。The two wires in the twisted pair 3 are respectively connected in parallel with the A signal wire in the twisted pair 1 and the GND wire in the
图4示出的通信传输电缆包含连接至两个接收端的线束，共8对双绞线，双绞线1～4组成连接至第一接收端的线束，双绞线5～8组成连接至第二接收端的线束，其中：双绞线1、双绞线6为通信传输电缆中原有的两对通信双绞线，双绞线1用于传递承载通信数据的一对差分信号A1、B1，双绞线2用于传递承载通信数据的一对差分信号A2、B2；双绞线2、双绞线8为该通信传输电缆中原有的两对电源双绞线，双绞线2用于传递电源正负极信号VCC1、GND1，双绞线8用于传递电源正负极信号VCC2、GND2；双绞线3、双绞线4、双绞线5、双绞线7为该通信传输电缆中增加的4对自定义双绞线。在连接至第一接收端的线束中，双绞线1中的一对差分信号A1、B1依靠双绞线3和双绞线4实现了对GND1的电压幅值都不超出标准范围，从而提升了抗电磁干扰能力，降低了与第一接收端通信的误码率，其原理分析同图3，此处不再赘述；在连接至第二接收端的线束中，双绞线6中的一对差分信号A2、B2依靠双绞线5和双绞线7实现了对GND2的电压幅值都不超出标准范围，从而提升了抗电磁干扰能力，降低了与第二接收端通信的误码率，其原理分析同图3，此处不再赘述。The communication transmission cable shown in Figure 4 includes a wire harness connected to two receiving ends, a total of 8 pairs of twisted pairs, twisted pairs 1 to 4 form a wire harness connected to the first receiving end, and twisted pairs 5 to 8 form a wire harness connected to the second receiving end. The wiring harness at the receiving end, among which: twisted pair 1 and twisted pair 6 are the original two pairs of communication twisted pairs in the communication transmission cable, twisted pair 1 is used to transmit a pair of differential signals A1 and B1 carrying communication data,
图5示出的通信传输电缆仅包含连接至一个接收端的线束，共7对双绞线，其中：双绞线1、双绞线5为通信传输电缆中原有的两对通信双绞线，双绞线1用于传递承载通信数据的一对差分信号A1、B1，双绞线5用于传递承载通信数据的一对差分信号A2、B2；双绞线2为该通信传输电缆中原有的一对电源双绞线，用于传递电源正负极信号VCC、GND；双绞线3、双绞线4、双绞线6、双绞线7为该通信传输电缆中增加的4对自定义双绞线。双绞线1上的一对差分信号A1、B1依靠双绞线3和双绞线4实现了对GND的电压幅值都不超出标准范围，双绞线5上的一对差分信号A2、B2依靠双绞线6和双绞线7实现了对GND的电压幅值都不超出标准范围，其原理分析同图3，此处不再赘述。The communication transmission cable shown in Figure 5 only includes a wiring harness connected to a receiving end, a total of 7 pairs of twisted pairs, wherein: twisted pair 1 and twisted pair 5 are the original two pairs of communication twisted pairs in the communication transmission cable, and the twisted pair The twisted pair 1 is used to transmit a pair of differential signals A1 and B1 carrying communication data, and the twisted pair 5 is used to transmit a pair of differential signals A2 and B2 carrying communication data; the
本发明实施例2：
本发明实施例2公开了又一种通信传输电缆，包含3n+m对双绞线，分别是：n对通信双绞线、m对电源双绞线和2n对自定义双绞线，n≥m≥1。图6为本发明实施例2的一个示例，具体的，图6是以n＝m＝1作为示例。
在本发明实施例2中，所述3n+m对双绞线划分为m组，第i组包含1对电源双绞线、xi对通信双绞线和2xi对自定义双绞线；i＝1、2、…、m，xi≥1，x1+x2+…+xm＝n；In
在第i组内：电源双绞线用于随第s对通信双绞线一起连接至第s个接收端，第s对自定义双绞线中的第一根线与第s对通信双绞线中的第一根线并联，第s对自定义双绞线中的第二根线、第xi+s对自定义双绞线中的第一根线以及电源双绞线中的GND线三者并联，第s对通信双绞线中的第二根线与第xi+s对自定义双绞线中的第二根线并联；s＝1、2、…、xi。In group i: the power twisted pair is used to connect to the sth receiving end together with the sth pair of communication twisted pair, and the first wire in the sth pair of custom twisted pair is connected to the sth pair of communication twisted pair The first wire in the line is connected in parallel, the second wire in the sth custom twisted pair, the first wire in the xi +s custom twisted pair, and the GND wire in the power twisted pair The three are connected in parallel, and the second wire of the sth communication twisted pair is connected in parallel with the second wire of the xi+ s custom twisted pair; s=1, 2, ..., xi .
图6示出的通信传输电缆仅包含连接至一个接收端的线束，共4对双绞线，其中：双绞线1为通信传输电缆中原有的一对通信双绞线，用于传递承载通信数据的一对差分信号A、B；双绞线2为该通信传输电缆中原有的一对电源双绞线，用于传递电源正负极信号VCC、GND；双绞线3和双绞线4为该通信传输电缆中增加的2对自定义双绞线。The communication transmission cable shown in Figure 6 only includes a wire harness connected to one receiving end, a total of 4 pairs of twisted pairs, wherein: twisted pair 1 is the original pair of communication twisted pairs in the communication transmission cable, used to transmit and carry communication data A pair of differential signals A and B;
本发明实施例2与本发明实施例1的区别仅在于：本发明实施例1通过增加双绞线变相实现了让一对通信双绞线中的两根线与一对电源双绞线中的两根线一对一绞合，而本发明实施例2是通过增加双绞线变相实现了让一对通信双绞线中的两根线都与电源双绞线中的GND线绞合，但两者解决技术问题的原理相同，此处不再赘述。The difference between
本发明实施例3：Embodiment 3 of the present invention:
本发明实施例3公开了又一种通信传输电缆，包含3n+m对双绞线，分别是：n对通信双绞线、m对电源双绞线和2n对自定义双绞线，n≥m≥1。图7为本发明实施例3的一个示例，具体的，图7是以n＝m＝1作为示例。Embodiment 3 of the present invention discloses yet another communication transmission cable, including 3n+m pairs of twisted pairs, which are: n pairs of communication twisted pairs, m pairs of power supply twisted pairs, and 2n pairs of custom twisted pairs, n≥ m≥1. FIG. 7 is an example of Embodiment 3 of the present invention. Specifically, FIG. 7 takes n=m=1 as an example.
在本发明实施例3中，所述3n+m对双绞线划分为m组，第i组包含1对电源双绞线、xi对通信双绞线和2xi对自定义双绞线；i＝1、2、…、m，xi≥1，x1+x2+…+xm＝n；In Embodiment 3 of the present invention, the 3n+m pairs of twisted pairs are divided into m groups, and the i-th group includes 1 pair of power supply twisted pairs, xi pairs of communication twisted pairs, and 2xi pairs of custom twisted pairs; i=1, 2, ..., m, xi ≥ 1, x1 + x2 + ... + xm = n;
在第i组内：电源双绞线用于随第s对通信双绞线一起连接至第s个接收端，第s对自定义双绞线中的第一根线与第s对通信双绞线中的第一根线并联，第s对自定义双绞线中的第二根线、第xi+s对自定义双绞线中的第一根线与电源双绞线中的VCC线三者并联，第xi+s对自定义双绞线中的第二根线与第s对通信双绞线中的第二根线并联；s＝1、2、…、xi。In group i: the power twisted pair is used to connect to the sth receiving end together with the sth pair of communication twisted pair, and the first wire in the sth pair of custom twisted pair is connected to the sth pair of communication twisted pair The first wire in the line is connected in parallel, the second wire in the sth custom twisted pair, the first wire in the xi +s custom twisted pair and the VCC wire in the power twisted pair The three are connected in parallel, the second wire of the xi +s custom twisted pair is connected in parallel with the second wire of the s communication twisted pair; s=1, 2, ..., xi .
图7示出的通信传输电缆仅包含连接至一个接收端的线束，共4对双绞线，其中：双绞线1为通信传输电缆中原有的一对通信双绞线，用于传递承载通信数据的一对差分信号A、B；双绞线2为该通信传输电缆中原有的一对电源双绞线，用于传递电源正负极信号VCC、GND；双绞线3和双绞线4为该通信传输电缆中增加的2对自定义双绞线。The communication transmission cable shown in Figure 7 only includes a wire harness connected to one receiving end, a total of 4 pairs of twisted pairs, wherein: twisted pair 1 is the original pair of communication twisted pairs in the communication transmission cable, used to transmit and carry communication data A pair of differential signals A and B;
本发明实施例3与本发明实施例1的区别仅在于：本发明实施例1通过增加双绞线变相实现了让一对通信双绞线中的两根线与一对电源双绞线中的两根线一对一绞合，而本发明实施例3是通过增加双绞线变相实现了让一对通信双绞线中的两根线都与电源双绞线中的VCC线绞合，但两者解决技术问题的原理相同，此处不再赘述。The difference between Embodiment 3 of the present invention and Embodiment 1 of the present invention is only that: Embodiment 1 of the present invention realizes that two wires in a pair of communication twisted Two wires are twisted one-to-one, and Embodiment 3 of the present invention realizes that two wires in a communication twisted pair are all twisted with the VCC wire in the power twisted pair by adding a twisted pair in disguise, but Both have the same principle for solving technical problems, and will not repeat them here.
本发明实施例4：Embodiment 4 of the present invention:
本发明实施例4公开了又一种通信传输电缆，包含3n对双绞线和m根GND线，所述3n对双绞线分别是：n对通信双绞线和2n对自定义双绞线，n≥m≥1。图8为本发明实施例4的一个示例，具体的，图8是以n＝m＝1作为示例。Embodiment 4 of the present invention discloses yet another communication transmission cable, including 3n pairs of twisted pairs and m GND lines, and the 3n pairs of twisted pairs are: n pairs of communication twisted pairs and 2n pairs of custom twisted pairs , n≥m≥1. FIG. 8 is an example of Embodiment 4 of the present invention. Specifically, FIG. 8 takes n=m=1 as an example.
所述3n对双绞线和m根GND线划分为m组，第i组包含1根GND线、xi对通信双绞线和2xi对自定义双绞线；i＝1、2、…、m，xi≥1，x1+x2+…+xm＝n；The 3n pairs of twisted pairs and m GND lines are divided into m groups, and the i-th group includes 1 GND line, xi pairs of communication twisted pairs and 2xi pairs of custom twisted pairs; i=1, 2, ... , m, xi ≥ 1, x1 +x2 +...+xm = n;
在第i组内：GND线用于随第s对通信双绞线一起连接至第s个接收端，第s对自定义双绞线中的第一根线与第s对通信双绞线中的第一根线并联，第s对通信双绞线中的第二根线与第xi+s对自定义双绞线中的第二根线并联，第s对自定义双绞线中的第二根线、第xi+s对自定义双绞线中的第一根线与与GND线三者并联；s＝1、2、…、xi。In the i-th group: GND line is used to connect to the s-th receiving end together with the s-th pair of communication twisted-pair wires, the first wire in the s-th pair of custom twisted-pair wires is connected to the s-th pair The first wire of the sth pair of communication twisted pairs is connected in parallel, the second wire of the sth pair of communication twisted pairs is connected in parallel with the second wire of thexi +s pair of custom twisted pairs, and the second wire of the sth pair of custom twisted pairs The second wire, the first wire of the xi +s custom twisted pair are connected in parallel with the GND wire; s=1, 2, ..., xi .
图8示出的通信传输电缆仅包含连接至一个接收端的线束，共3对双绞线和1根GND线，其中：双绞线1为通信传输电缆中原有的一对通信双绞线，用于传递承载通信数据的一对差分信号A、B；GND线为该通信传输电缆中原有的一根电源线；双绞线2和双绞线3为该通信传输电缆中增加的2对自定义双绞线。The communication transmission cable shown in Figure 8 only includes a wiring harness connected to a receiving end, a total of 3 pairs of twisted pairs and 1 GND line, wherein: twisted pair 1 is the original pair of communication twisted pairs in the communication transmission cable, used It is used to transmit a pair of differential signals A and B that carry communication data; the GND line is an original power line in the communication transmission cable;
本发明实施例4与本发明实施例1的区别仅在于：本发明实施例1通过增加双绞线变相实现了让一对通信双绞线中的两根线与一对电源双绞线中的两根线一对一绞合，而本发明实施例3中只有GND线没有VCC线，通过增加双绞线变相实现了让一对通信双绞线中的两根线都与该GND线绞合，但两实施例解决技术问题的原理相同，此处不再赘述。The difference between Embodiment 4 of the present invention and Embodiment 1 of the present invention is only that: Embodiment 1 of the present invention realizes that the two wires in a pair of communication twisted-pair wires and the two wires in a pair of power twisted-pair wires are connected by adding twisted pairs in disguise. The two wires are twisted one-to-one, but in Embodiment 3 of the present invention, there is only the GND wire and no VCC wire. By adding a twisted pair in disguise, two wires in a pair of communication twisted-pair wires are twisted with the GND wire. , but the principles for solving technical problems in the two embodiments are the same, and will not be repeated here.
本发明实施例5：Embodiment 5 of the present invention:
本发明实施例5公开了又一种通信传输电缆，包括：本发明实施例1所述的通信传输电缆中所包含的所有线以及本发明实施例2所述的通信传输电缆中所包含的所有线。Embodiment 5 of the present invention discloses another communication transmission cable, including: all the wires contained in the communication transmission cable described in Embodiment 1 of the present invention and all the lines contained in the communication transmission cable described in
或者，所述通信传输电缆包括：本发明实施例1所述的通信传输电缆中所包含的所有线以及本发明实施例3所述的通信传输电缆中所包含的所有线。Alternatively, the communication transmission cable includes: all the wires included in the communication transmission cable described in Embodiment 1 of the present invention and all the lines included in the communication transmission cable described in Embodiment 3 of the present invention.
或者，所述通信传输电缆包括：本发明实施例2所述的通信传输电缆中所包含的所有线以及本发明实施例3所述的通信传输电缆中所包含的所有线。Alternatively, the communication transmission cable includes: all the wires included in the communication transmission cable described in
或者，所述通信传输电缆包括：本发明实施例1所述的通信传输电缆中所包含的所有线、本发明实施例2所述的通信传输电缆中所包含的所有线以及本发明实施例3所述的通信传输电缆中所包含的所有线。Alternatively, the communication transmission cable includes: all the lines contained in the communication transmission cable described in Embodiment 1 of the present invention, all the lines contained in the communication transmission cable described in
可以说，对于本发明实施例1-4中任意多条独立的通信传输电缆，将其所包含的所有线组合在一起封装成一条电缆，便是本发明实施例5公开的通信传输电缆。这任意多条独立的通信传输电缆在线数设置上互不影响。It can be said that for any number of independent communication transmission cables in Embodiments 1-4 of the present invention, all the wires contained in them are combined and packaged into one cable, which is the communication transmission cable disclosed in Embodiment 5 of the present invention. These arbitrary multiple independent communication transmission cables do not affect each other in setting the number of wires.
综上所可知，上述公开的任一实施例都是通过增加双绞线将信号线与电源线绞合，利用双绞线能够抑制相绞合的两根线受到外界电磁干扰的特性，来克服因电磁干扰所导致的信号线对地电压幅值超出标准范围的问题，从而提升了抗电磁干扰能力，降低了通信的误码率。In summary, any of the above-mentioned disclosed embodiments overcomes the problem by twisting the signal line and the power line by adding a twisted pair, and using the characteristic that the twisted pair can suppress the two twisted lines from being subjected to external electromagnetic interference. The problem that the signal line-to-ground voltage amplitude exceeds the standard range caused by electromagnetic interference, thereby improving the ability to resist electromagnetic interference and reducing the bit error rate of communication.
另外，在上述公开的任一实施例中，原来的每一根信号线都改为了由2根信号线并联组成(例如图3中A信号的走线实质是由双绞线1中的一根线与双绞线3中的一根线并联组成)，当通信波特率较高且传输电缆较长，以至于必须使用传输线理论分析时，与源端相比，两个不等长的线并联会降低信号线对地的电压幅值，该特点可用于抑制反射导致的信号对地电压幅值增加；若不希望信号电压幅值降低，则可使用两个等长的信号线并联。也即是说，在第i组内：同一对双绞线内的两根线等长；当需要降低第s对通信双绞线中的第一根线对地电压时，设置第s对自定义双绞线与第s对通信双绞线不等长，否则设置第s对自定义双绞线与第s对通信双绞线等长；当需要降低第s对通信双绞线中的第二根线对地电压时，设置第xi+s对自定义双绞线与第s对通信双绞线不等长，否则设置第xi+s对自定义双绞线与第s对通信双绞线等长。In addition, in any of the embodiments disclosed above, each original signal line is changed to be composed of two signal lines connected in parallel (for example, the routing of the A signal in FIG. line and one line in the twisted pair 3 in parallel), when the communication baud rate is high and the transmission cable is long, so that the transmission line theory must be used for analysis, compared with the source end, the two lines of unequal length Parallel connection will reduce the voltage amplitude of the signal line to ground. This feature can be used to suppress the increase of signal-to-ground voltage amplitude caused by reflection; if the signal voltage amplitude is not expected to decrease, two equal-length signal lines can be used in parallel. That is to say, in the i-th group: the two wires in the same twisted pair are equal in length; when it is necessary to reduce the voltage of the first wire in the sth pair of communication twisted Define that the length of the twisted pair is not equal to that of the sth pair of communication twisted pair, otherwise set the length of the sth custom twisted pair to be equal to the length of the sth pair of communication twisted pair; When the voltage of the two wires is grounded, set the xi + s custom twisted pair and the s communication twisted pair to be of different lengths, otherwise set the xi + s custom twisted pair to communicate with the s pair Twisted pairs of equal length.
再者，在上述公开的任一实施例中，原来的每一根信号线都改为了由2根信号线并联组成，原来的每一根电源线也都改为了由2根电源线并联组成，并联的两根线互为备用，提升了可靠性。Furthermore, in any of the embodiments disclosed above, each original signal line is changed to be composed of two signal lines connected in parallel, and each original power line is also changed to be composed of two power lines connected in parallel, The two wires connected in parallel serve as backups for each other, improving reliability.
上述公开的任一实施例所述的通信传输电缆可以采用RS-485或CAN通讯方式，并不局限。The communication transmission cable described in any embodiment disclosed above may adopt RS-485 or CAN communication mode, which is not limited thereto.
本说明书中各个实施例采用递进的方式描述，每个实施例重点说明的都是与其他实施例的不同之处，各个实施例之间相同相似部分互相参见即可。Each embodiment in this specification is described in a progressive manner, each embodiment focuses on the difference from other embodiments, and the same and similar parts of each embodiment can be referred to each other.
本发明的说明书和权利要求书及上述附图中的术语“第一”、“第二”、“A”、“B”等是用于区别类似的不同对象，而不必用于描述特定的顺序或先后次序。而且，术语“包括”、“包含”或者其任何其他变体意在涵盖非排他性的包含，从而使得包括一系列要素的过程、方法、商品或者设备不仅包括那些要素，而且还包括没有明确列出的其他要素，或者是还包括为这种过程、方法、商品或者设备所固有的要素。在没有更多限制的情况下，由语句“包括一个”限定的要素，并不排除在包括要素的过程、方法、商品或者设备中还存在另外的相同要素。The terms "first", "second", "A", "B" and the like in the description and claims of the present invention and the above drawings are used to distinguish similar different objects, and are not necessarily used to describe a specific order or sequentially. Furthermore, the term "comprises", "comprises" or any other variation thereof is intended to cover a non-exclusive inclusion such that a process, method, article, or apparatus comprising a set of elements includes not only those elements, but also includes elements not expressly listed. other elements of, or also include elements inherent in, such a process, method, commodity, or apparatus. Without further limitations, an element defined by the statement "comprising a" does not preclude the presence of additional identical elements in the process, method, article or apparatus that includes the element.
对所公开的实施例的上述说明，使本领域专业技术人员能够实现或使用本发明。对这些实施例的多种修改对本领域的专业技术人员来说将是显而易见的，本文中所定义的一般原理可以在不脱离本发明实施例的精神或范围的情况下，在其它实施例中实现。因此，本发明实施例将不会被限制于本文所示的这些实施例，而是要符合与本文所公开的原理和新颖特点相一致的最宽的范围。The above description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the invention. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein can be implemented in other embodiments without departing from the spirit or scope of the embodiments of the present invention . Therefore, the embodiments of the present invention will not be limited to these embodiments shown herein, but will conform to the widest scope consistent with the principles and novel features disclosed herein.
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