对于一个欧洲产量最高的汽车制造商来说，生产线中各个环节的准确性和可靠性都是至关重要的。

Nissan所面临的问题是，现有的机械扶正器不能处理两个主要车辆的新玻璃型号。扶正器位于玻璃边线的6个点上，并且始终将其设于一个已知的“中央”位置，为下一道生产程序做准备。因此，重要的是，新视觉系统不仅能为两个新的型号提供准确信息，还可以很快适应未来生产的发展。

出于该方面考虑，Nissan基于多项重要原因与被选中提供系统的Capley Marker合作。他们预先为Nissan安装了5个相机，并将一条分割线转换为康耐视In-Sight相机；Nissan对基于现有合作受到的支持水平非常满意，并且最终Capley成为康耐视认可的PSI（合作系统集成商）。

该系统被用于Nissan Micra和Note的生产线。此项目的关键需要就是在线检测由一到四个变量所决定的玻璃型号。Micra固定侧窗右侧（RHS）与左侧（LHS）；Note固定侧窗右侧（RHS）与左侧（LHS）。一个类似的系统被用于生产逍客（Qashqai）的第二条生产线。

两个In-Sight 5100相机用于该生产线，分别安置在装配线旁的基础单元。每个相机都利用坚实的钢架按所要求的高度安装在基础单元。该In-Sight相机采用了康耐视PatMax^®技术。PatMax作为元件的工业性能标准及特征定位软件，利用先进的几何图形匹配技术对元件进行可靠并准确地定位。即使在极端条件下该工具也可以明显地减少或消除设备的要求及费用。对于定位元件或特征，PatMax为视觉系统提供了有效的最高视觉检测率与可靠性。

相机提供给使用RJ-2控制器的Fanuc 6轴机器人所有信息中的至关重要的两个信息段。首先，一个来自相机的数字信号被发送至机器人，以确定玻璃变体；然后，相机将玻璃的坐标系以串行形式发送给机器人，以便机器人能在每一个周期均能在同一个位置捡起玻璃。玻璃的坐标系包含玻璃在视觉系统中的x轴、y轴和其旋转角度。（前到后、边到边及旋转）。

机器人根据视觉系统提供的数据定位玻璃，通过一个向玻璃边线连续滴加树脂的固定喷嘴，操纵玻璃边线，并最终将玻璃传送至操作员进行挑选的卸载位置，以适应车辆情况。坐标系由线上机器人直接定位和替换，以便其它机器人能准确获取到玻璃。

负责安装的项目工程师Rory McCrystal评价道，“该视觉系统提供准确可靠的读取，对我们的生产线非常重要。该系统将会更好地支持新产品推广，因为它比以前更加灵活。根据经过改善的灵活性，我们可以预见在今后的新产品推广中，所需的转换时间将会大幅度减少。”

关于Capley Marker

Capley Marker英国是处于领导地位的康耐视PSI。Capley Marker的创新敏感方案使用了全部康耐视技术。此外还有关于运动控制、自动化与集成的专家意见——完全的方案提供商。这些技能使Capley Marker完全了解您的要求，并为产量与零缺陷生产提供有力、完整的方案。访问www.capleys.co.uk获得更多信息。

关于康耐视

康耐视公司设计、研发、生产及销售机器视觉传感器和视觉系统，让机器也具备了‘智能视觉’。作为全球机器视觉行业的领先厂商，自从1981年公司成立以来，康耐视机器视觉系统的销售量至今已超过了400,000套，累计收入逾20亿美元。康耐视的模块化视觉系统部门（总部位于马萨诸塞州的Natick）专门生产基于机器的图像处理系统，被广泛的应用于自动化的生产和单个元件的质量保障管理。康耐视的表面检查系统部门（总部设于加州的Alameda）则专注于高速的表面检测，如金属、纸张、及塑料。除位于美国马萨诸塞州Natick郡的总部之外，康耐视也在北美、日本、欧洲、及东南亚设有地区办事处。康耐视欧洲公司的总部坐落于靠近巴黎的Rueil-Malmaison。更多详情，敬请登陆公司网站：http://www.cognex.com.

图片说明：

检测工位现场图片

5100相机检测图片

For Immediate Release

Media contact:

Carrie Fan, EMG China

Tel:  (86-21)   5887 8007 ext.105

Fax: (86-21)   5887 8338

Email: cfan@emgchina.com

Nissan saves time and money with Cognex vision

At one of the most productive automotive manufacturing plants in Europe, accuracy and reliability at all points on the production line are of paramount importance.

The issue Nissan faced was that the existing mechanical centraliser could not cope with the new glass sizes for two its key vehicles. The centraliser locates at six points around the edge of the glass and consistently locates it to a known ’central’ location in preparation for the next stage of the production process. Therefore it was imperative that the new vision system would not only provide accurate information for the two new models, but also that it would adapt easily to future product developments.

With these elements in mind, Nissan approached Capley Marker who was chosen to supply the system for a number of key reasons. They had previously installed 5 cameras at Nissan and converted a separate line to Cognex In-Sight cameras; Nissan were extremely satisfied with the level of support received through the existing relationship and finally, Capley is an approved Cognex PSI (Partner System Integrator).

The system was to be supplied for use on the Nissan Micra and Note production lines. The key project requirement was to determine the glass type on the line, which could be 1 of 4 variants; Micra fixed side window right hand side (RHS) and left hand side (LHS); Note fixed side window RHS and LHS. A similar system is used on a second line which produces the Qashqai.

Two In-Sight 5100 cameras are used on this line with one camera placed in each cell which is on the side of the assembly line. Each camera is fixed at the required height by a rigid steel stand mounted to the cell base. The In-Sight cameras use Cognex’s PatMax® technology. PatMax, the industry’s performance standard for part and feature location software, utilizes advanced geometric pattern matching technology to reliably and accurately locate parts. Even under extreme conditions, this tool can significantly reduce or eliminate fixturing requirements and cost. For locating parts or features, PatMax provides the maximum vision inspection yield and reliability available in a vision system.

Using a Fanuc 6 axis robot with RJ-2 control, the cameras provide the robot with two vital pieces of information. Firstly, a digital signal from the camera is sent to the robot confirming the glass variant. Then, a serial string is sent from camera to robot with the coordinates of the glass so the robot picks the glass up in the same position each cycle. The exact coordinates measured are X, Y and the angle of the glass on the vision part of the cell (front to back, side to side and twist).

The robot locates the glass from the data supplied by the vision system, manipulates the glass edge through a fixed nozzle that applies a continuous bead of mastic to the glass edge and finally transfers the glass to an offload position where the operator picks up to apply to the vehicle. The coordinates are located and relayed directly to the line robot to ensure the robot can access the glass.

Rory McCrystal, the Project Engineer responsible for the installation commented, “This vision system provides accurate and reliable readings, essential for our production lines. The system will better support new product introduction as it is more flexible than before. Based on this improved flexibility it is predicted that there will be a significant reduction in changeover time during future new product introduction.”

About Capley Marker

Capley Marker is a leading Partner System Integrator with Cognex in the UK.  Capley Marker's innovative sensing solutions utilise the full strength of Cognex' technologies.  Added to this is their expertise in motion control, automation and integration - a complete solution provider.  These skills enable Capley Marker to take a complete view of your requirements and to deliver robust complete solutions for volume, zero-defect manufacturing. Visit www.capleys.co.uk for more information.

About Cognex

COGNEX designs, develops, produces and sells machine-based vision systems and computers which allow machines to see "intelligently". Cognex is the world's leading supplier of machine-based vision systems, with over 400,000 systems already supplied, corresponding to a cumulative turnover of over 2 billion USD since the company was founded in 1981. The Modular Vision Systems Division of Cognex is based in Natick, Massachusetts, and specializes in machine-based vision systems used in the automated production and quality assurance of individual parts. The Surface Inspection Systems Division headquartered in Alamenda, California, concentrates on the high-speed surface inspection of sheet product made of metal, paper and plastic. In addition to the headquarters in Natick, Massachusetts, there are other subsidiaries in North America, Japan, Europe and South-East Asia. The head office of Cognex Europe is in Rueil-Malmaison, near Paris. For more information, see our website at http://www.cognex.com.