Detection method of automobile wiring harness conduction

The safety function of automobile harness is directly related to the safety of automobile, so the automobile manufacturers pay more and more attention to the quality of the harness. Now, the fault type is defined as single in the detection of the vehicle harness conduction, and it can not distinguish various types of errors. The position of the error can not be identified by the supply, which makes the operator unable to find the problem point accurately and reduce the operation power. Most of the current domestic conduction machines are controlled by PLC or single chip microcomputer. LED flash screen flashes, only single i/o port serial number can be flashed. For the incorrect wiring harness, more detailed information cannot be provided. This kind of interaction is poor, it is very inconvenient for the tester to operate, LED flash screen can not flash the visual image, and it can not be humanized. Therefore, it is one of the important issues that technicians in this field need to solve to supply a reasonable planning, simple and effective detection method for the car harness conduction.

发明内容

summary of the invention

本发明的意图在于打败上述不足之处，供应一种规划合理、工艺简略、作用显着的 一种轿车线束导通的检测方法。为结束上述意图本发明所选用的技术计划是一种汽车线束导通的检测方法，其 特征在于该方法实施进程如下

The purpose of the invention is to defeat the above shortcomings and provide a detection method for the wire harness continuity of a car with reasonable planning, simple process and obvious function. The technical plan selected to end the above intention is a detection method for the continuity of automobile harness, which is characterized in that the implementation process of the method is as follows

检测方法所选用的系统包括线束检测工装台、I/O卡、收集卡、线束检测主机、检测信息 闪现屏、条形码打印机；所述线束检测工装台上设置有与线束对接的治具，使线束中的电线 与线束检测工装台对接，并设置有与导通机对接的接口，与I/O卡上的I/O端口(输入输出 端口)运用专用的导线逐一对接，线束中的电线与I/O端口之间构成闭环电路；线束检测主 机通过收集卡将检测信号发送至I/O卡上的I/O端口，再通过收集卡收集I/O卡I/O端口 上的信号，将信号回传给主机；主机将对信号进行剖析处理，检测到不良的状况时，即通过 与主机相连的检测信息闪现屏进行提示；且主机与条形码打印机联接；

The system selected for the detection method includes the wiring harness testing tool, i/o card, collection card, harness detection host, detection information flash screen and barcode printer; The harness detection tool is equipped with a fixture for connecting with the harness to connect the wire in the harness with the wiring harness detection tool platform, and is provided with an interface with the conduction machine, and the i/o port (input and output port) on the i/o card is connected with each other with special wires, and the wire in the harness forms a closed-loop circuit between the wire in the harness and the i/o port; The main machine of harness detection sends the detection signal to i/o port on the i/o card through the collection card, then collects the signal on i/o port of i/o card through the collection card, and sends the signal back to the host; The host will analyze and process the signal, and prompt the signal through the flash screen of the detection information connected to the host when the bad condition is detected; And the host is connected with barcode printer;

设电压Vl和V2别离为轿车线束回路的两头的电压，Vl是标准电压，对V2的电压进行 逻辑比较，得到逻辑信号Vo，并对电压Vo进行判别，毕竟得出该线束回路通断的判别作用； 以上所述是单一电路的导通联接，轿车线束为多回路多端点电路的通断，故对轿车线束的 悉数端点进行判别，定义发送端口和接收端口，辨认每一条电路，依次在发送端宣告标准直 流电压信号，在接收端接收信号，并对接收的数据与标准数据进行对比判别，毕竟得出整条 线束的通断及配线状况；将查验作用闪现在线束检测信息闪现窗口上，并进行语音提示，识 别开路、误配、短路三种差错类型，图形界面闪现的信息包括(1)差错类型，(2)差错线在 线束上的方位、(3)差错线地址的对插件的形状、(4)线的颜色及(5)线的编号；并且界面提 示修改定见，检测操作人员根据界面提示找到差错线，根据提示对线束进行修改，悉数查验 合格后发送信号到打印机，打印出合格产品标签，或输出信号控制自动工装弹出轿车线束。本发明的有利作用是本发明方法别离定义分辩多种差错类型，能够供应准招认

The voltage VL and V2 are separated from the voltage of the two ends of the harness circuit of the car. VL is the standard voltage. The voltage of V2 is logically compared to obtain the logic signal VO and the voltage Vo is judged. After all, the judging function of the harness circuit on and off is obtained; The above mentioned is the on-off connection of a single circuit. The car harness is the on-off of multi circuit and multi-end circuit. Therefore, it distinguishes all the ends of the car harness, defines the sending port and the receiving port, identifies each circuit, declares the standard DC voltage signal at the sending end, receives the signal at the receiving end, and compares the received data with the standard data, After all, the on-off and wiring condition of the whole harness are obtained; The check function flashed to the online beam detection information flash window, and voice prompt was given to identify three error types: open circuit, mismatch and short circuit. The flashover information in the graphic interface includes (1) error type, (2) orientation on the error line harness, (3) the shape of the error line address to the plug-in, (4) the color of the line and the number of line (5); And the interface prompts to modify the confirmation, the detection operator finds the error line according to the interface prompt, modifies the harness according to the prompt, sends the signal to the printer after all the inspection is qualified, prints out the qualified product label, or outputs the signal to control the automatic tooling to eject the car harness. The advantages of the invention are that the method of the invention can distinguish different types of errors from the definition, and can supply quasi recognition

3位差错的方位，使作业员能够准确的找到问题点，提高了作业功率。可对不正确的线束供应 更详细的信息。这样交互性好，对检测员操作极为便利，并可供应直观形象化的图形，使其 更加人性化。本发明方法实施进程简略，规划合理，检测数据准确可靠，作用非常显着，且应 用规划广泛。

The three error orientation enables the operator to find the problem points accurately and improve the operation power. More detailed information can be provided for incorrect wiring harness. This kind of interaction is good, it is very convenient for the tester to operate, and can provide visual and visual graphics, making it more human. The implementation process of the method is simple, the plan is reasonable, the detection data is accurate and reliable, the function is very obvious, and the application planning is wide.

详细实施例方法以下结合附图和较佳实施例，对根据本发明供应的详细实施方法、结构、特征胪陈 如下

The detailed embodiment method is shown below, combined with the attached drawings and the better embodiment, and the detailed implementation method, structure and characteristics supplied according to the invention are listed below

如图1所示，本发明检测系统由线束检测工装台、I/O卡、收集卡、线束检测主机、检测 信息闪现窗口、条形码打印机六个部分构成；将线束固定在检测工装台上，线束检测工装台 上设置有与线束对接的治具，使线束中的电线与线束检测工装台对接，并设置有与导通机 对接的接口，与I/O卡上的输入输出端口，通称I/O端口运用专用的导线逐一对接，此刻线 束中的电线与I/O端口之间构成闭环电路；线束检测主机通过收集卡将检测信号发送至I/ 0卡上的I/O端口，再通过收集卡收集I/O卡I/O端口上的信号，将信号回传给主机；主机 将对信号进行剖析处理，假定检测到不良的状况，会通过检测信息闪现窗口进行提示；没有 检测到不良的状况，检测信息闪现窗口提示合格，主机发送消息给条形码打印机进行打印。如图2所示，在线束检测中，为每一条电线定义发送端和接收端，图中所示的是接 收端的比较电路原理图；发送端输出电压信号，Vl标明为接收端的电压；V标明标准电压， V通过电阻Rl和电阻R2分压后变为V2，联接到电压比较器上；Vl与V2通过电压比较器比 较，毕竟得出比较后的信号Vo。以上所述是单一电路的检测联接，轿车线束为多回路多端点电路的通断；需要对 轿车线束的悉数端点进行判别，定义发送与接收端，辨认每一条电路，在发送端宣告标准电 压信号，在接收端接收信号，并对接收的数据与标准数据进行对比判别，毕竟得出整条线束 的通断及配线状况；将查验作用闪现在信息检测闪现窗口上，并进行语音提示，可辨认开 路、误配、短路三种差错类型，图形界面闪现的信息包括(1)差错类型，(2)差错线在线束 上的方位、(3)差错线地址的对插件的形状、(4)线的颜色及(5)线的编号；并且界面提示修 正定见，检测操作人员根据界面提示找到差错线，根据提示对线束进行修改，悉数查验合格 后发送信号到打印机，打印出合格产品标签，或输出信号控制自动工装弹出轿车线束。如图3所示，图中A和B标明线束的两头，该线束中一共有1号到5号五根电线； 第一种是正常联接的线束，其它的为线束的三种失效方法(1)断(开)路，线束中的电线断 开；(2)短路，线束中的两条或多条短路；(3)误配，线束中的线差错配线；通过对线路信号 的测量，对数据进行核算剖析，得出线束是否合格，关于不合格的线束提示出该线束的失效 方法。通过线束检测系统检测出的失效，都能够通过上述方法得出结论；本检测系统的闪现 方法是，录入线束的图形信息，在检测的一起提示差错类型和差错方位，差错方位通过线束图形来提示，并且给出修改的定见。在同一时间只闪现一条电路的差错记载，此刻操作的员 工能够根据图形提示的内容进行修补，其时的不良状况修改了今后再继续闪现下一条差错 记载。汽车线束由于其特定的安全和低损耗的功用要求特征，规划本电路的电压标准和 器件选择尤为重要，本电路设置的标准电压5-6V，判别电线失效的标准阻值是50Ω，彻底 契合了汽车线束检测进程中的安全要求和线束的质量要求。上述参照实施例对该汽车线束导通的检测方法进行的详细描述，是说明性的而不 是限定性的；因此在不脱离本发明整体构思下的改动和修改，应属本发明的维护规划之内。

As shown in Fig. 1, the detection system of the invention consists of six parts: wire harness testing tool bench, i/o card, collection card, harness detection host, detection information flash window and barcode printer; Fix the harness on the inspection bench, and the harness detection bench is equipped with a fixture for connecting with the harness to connect the wire in the harness with the wiring harness detection bench, and set up the interface with the connecting machine, and the input and output port on the i/o card. The i/o port is connected one by one with the dedicated wires. At this time, the wire in the harness and i/o port constitute a closed-loop circuit; The main machine of harness detection sends the detection signal to i/o port on the i/ 0 card through the collection card, then collects the signal on i/o port of i/o card through the collection card, and sends the signal back to the host; The host will analyze and process the signal, and if the bad condition is detected, it will prompt through the flash window of the detection information; No bad condition was detected, the detection information flashed window prompt was qualified, and the host sent a message to the barcode printer for printing. As shown in Fig. 2, in the online beam detection, the sending end and the receiving end are defined for each wire. The schematic diagram of the comparison circuit of the receiving end is shown in the figure; Output voltage signal at the transmitter, and VL is indicated as the voltage of the receiving end; V indicates the standard voltage, V becomes V2 after voltage separation of resistance RL and resistance R2, and is connected to voltage comparator; After all, the signal VO after comparison is obtained by comparing VL and V2 through voltage comparator. The above mentioned is a detection connection of a single circuit, and the car harness is a multi circuit and multi-point circuit on-off; It is necessary to distinguish all the end points of the car harness, define the sending and receiving end, identify each circuit, declare the standard voltage signal at the sending end, receive the signal at the receiving end, and compare the received data with the standard data, after all, get the on-off and wiring condition of the whole harness; The flash window will be checked for the action flash information, and voice prompt will be given to identify three error types: open circuit, mismatch and short circuit. The flash information in the graphic interface includes (1) error type, (2) orientation on the error line harness, (3) the shape of the error line address to the plug-in, (4) the color of the line and the number of line (5); And the interface prompt correction is fixed. The detection operator finds the error line according to the interface prompt, modifies the harness according to the prompt, sends the signal to the printer after all the inspection is qualified, prints out the qualified product label, or outputs the signal to control the automatic tooling ejecting the car harness. As shown in Figure 3, a and B in the figure indicate the two ends of the harness, which have five wires No. 1 to 5; The first is the normal connection of the harness, the other is the three failure methods of the harness (1) to disconnect (open) the wire, and the wire in the harness is disconnected（ 2) Short circuit, two or more short circuits in the harness（ 3) Misfit, wrong wiring in the harness; Through the measurement of the line signal, the data are calculated and analyzed, and the result shows whether the harness is qualified or not, and the unqualified harness indicates the failure method of the harness. The failure detected by the harness detection system can be concluded by the above methods; The flash method of this detection system is to input the graphic information of the harness, and prompt the error type and error orientation together. The error orientation is prompted by the harness graphics, and the modification is given. Only one circuit error record is flashed at the same time. The employees who operate at this time can repair according to the contents of the graphic prompt. The bad condition at that time has been modified before the next error record can be flashed. Due to the specific safety and low loss functional requirements of automobile harness, it is very important to plan the voltage standard and device selection of this circuit. The standard voltage set in this circuit is 5-6v, and the standard resistance value to judge the failure of the wire is 50 Ω， It completely meets the safety requirements and the quality requirements of the harness in the process of the automobile harness detection. The detailed description of the detection method of the vehicle harness conduction with reference to the embodiment above is illustrative rather than restrictive; Therefore, the changes and modifications without departing from the overall concept of the invention shall be within the maintenance plan of the invention.

权利要求

Claims

一种汽车线束导通的检测方法，其特征在于该方法实施进程如下检测方法所选用的系统包括线束检测工装台、I/O卡、收集卡、线束检测主机、检测信息闪现屏、条形码打印机；所述线束检测工装台上设置有与线束对接的治具，使线束中的电线与线束检测工装台对接，并设置有与导通机对接的接口，与I/O卡上的I/O端口运用专用的导线逐一对接，线束中的电线与I/O端口之间构成闭环电路；线束检测主机通过收集卡将检测信号发送至I/O卡上的I/O端口，再通过收集卡收集I/O卡I/O端口上的信号，将信号回传给主机；主机将对信号进行剖析处理，检测到不良的状况时，即通过与主机相连的检测信息闪现屏进行提示；且主机与条形码打印机联接；设电压V1和V2别离为轿车线束回路的两头的电压，V1是标准电压，对V2的电压进行逻辑比较，得到逻辑信号Vo,并对电压Vo进行判别，毕竟得出该线束回路通断的判别作用；以上所述是单一电路的导通联接，轿车线束为多回路多端点电路的通断，故对轿车线束的悉数端点进行判别，定义发送端口和接收端口，辨认每一条电路，依次在发送端宣告标准直流电压信号，在接收端接收信号，并对接收的数据与标准数据进行对比判别，毕竟得出整条线束的通断及配线状况；将查验作用闪现在线束检测信息闪现窗口上，并进行语音提示，辨认开路、误配、短路三种差错类型，图形界面闪现的信息包括(1)差错类型、(2)差错线在线束上的方位、(3)差错线地址的对插件的形状、(4)线的颜色及(5)线的编号；并且界面提示修改定见，检测操作人员根据界面提示找到差错线，根据提示对线束进行修改，悉数查验合格后发送信号到打印机，打印出合格产品标签，或输出信号控制自动工装弹出轿车线束。

The system selected by the following detection methods includes the wiring harness testing tool table, i/o card, collection card, harness detection host, detection information flash screen and barcode printer; The harness detection tool is equipped with a fixture for connecting with the harness to connect the wire in the harness with the wiring harness detection tool platform, and an interface with the conduction machine is provided. The i/o port on the i/o card is connected with the special wires one by one, and the wire in the harness and i/o port form a closed-loop circuit; The main machine of harness detection sends the detection signal to i/o port on the i/o card through the collection card, then collects the signal on i/o port of i/o card through the collection card, and sends the signal back to the host; The host will analyze and process the signal, and prompt the signal through the flash screen of the detection information connected to the host when the bad condition is detected; And the host is connected with barcode printer; The voltage V1 and V2 are separated from the two ends of the harness circuit of the car. V1 is the standard voltage. The voltage of V2 is logically compared to obtain the logic signal VO and the voltage Vo is judged. After all, the judgment function of the harness circuit on and off is obtained; The above mentioned is the on-off connection of a single circuit. The car harness is the on-off of multi circuit and multi-end circuit. Therefore, it distinguishes all the ends of the car harness, defines the sending port and the receiving port, identifies each circuit, declares the standard DC voltage signal at the sending end, receives the signal at the receiving end, and compares the received data with the standard data, After all, the on-off and wiring condition of the whole harness are obtained; The check function flashed the detection information of the online beam, and gave voice prompt to identify the three error types: open circuit, mismatch and short circuit. The flashover information in the graphic interface includes (1) error type, (2) orientation on the error line harness, (3) the shape of the error line address to the plug-in, (4) the color of the line and the number of (5) line; And the interface prompts to modify the confirmation, the detection operator finds the error line according to the interface prompt, modifies the harness according to the prompt, sends the signal to the printer after all the inspection is qualified, prints out the qualified product label, or outputs the signal to control the automatic tooling to eject the car harness.

全文摘要

Summary

本发明触及一种汽车线束导通的检测方法，包括进程设电压V1和V2别离为轿车线束回路的两头，对V1加以标准电压，对V2的电压进行逻辑比较，得到电压Vo,并对电压Vo进行判别比较，毕竟得出线束是否合格的判别作用；以上是单一电路的检测联接，汽车线束检测为多回路多端点电路的检测判别；需要对汽车线束的悉数端点进行判别，就需要定义发送与接收端，辨认每一条电路，在发送端宣告标准电压信号，在接收端接收信号，并对接收的数据与标准数据进行对比判别，毕竟得出整条线束的通断及配线状况，将查验作用图形闪现在液晶闪现器上，并供应语音提示，悉数查验合格后即打印出产品合格标签，或输出信号控制自动工装弹出汽车线束。其规划合理，作用显着。

The invention relates to a detection method for the continuity of automobile harness, including setting voltage V1 and V2 separately as two ends of the car harness circuit, making standard voltage for V1, logically comparing voltage of V2, obtaining voltage Vo, and discriminating and comparing voltage Vo, after all, to determine whether the harness is qualified or not; The above is the detection connection of single circuit, and the detection of automobile harness is the detection and discrimination of multi circuit and multi-point circuit; To distinguish all the end points of the automobile harness, it is necessary to define the sending and receiving end, identify each circuit, declare the standard voltage signal at the sending end, receive the signal at the receiving end, and compare the received data with the standard data. After all, the on-off and wiring condition of the whole wire harness are obtained. The graphic flash of the function will be checked and the current LCD flasher will be verified, And provide voice prompt, print out the product qualified label after all the inspection, or output signal control automatic tooling eject the car harness. Its planning is reasonable and plays an important role.