基于执行轨迹的软件缺陷自定位系统设计与研究

Design and research of software defect self-localization system based on executive trajectory

为了解决面向开源软件缺陷自定位系统存在定位精准度低的问题,在保留原定位系统结构的基础上,设计基于执行轨迹的软件缺陷自定位系统。在硬件结构部署方面,采用AM2301型号芯片设计信号传感器,联合校准系数,设置总线接口,实现信号自动传输。下位机内部镶嵌Galileo GN100型号定位芯片,通过NMEA-0183V4.1协议获取数据信息,设置固定标记点,集合线性部件进行软件缺陷位置定位与控制。通过通信接口电路,使上位机RS 232串口通信接收下位机传送的信息。依据下位机执行轨迹组织、轨迹选择、怀疑率计算结果,设计评价报告标准,获取缺陷位置坐标,经由上位机显示具体缺陷位置信息。在Windows平台进行系统测试,由测试结果可知,该系统定位精准度最高可达到93%,满足人们对软件可信度高标准的要求。

In order to solve the problem of low positioning accuracy in open source software defect self-positioning system,a software defect self-positioning system based on execution trajectory is designed on the premise of retaining the original positioning system structure. In terms of hardware structure deployment,AM2301 chip is used to design signal sensor and,joint calibration coefficient,and set up the bus interface to realize signal automatic transmission. Galileo GN100 positioning chip is embedded in the lower computer,obtain data information according to NMEA-0183 V4.1 protocol,and set the fixed marker points. The linear components are assembled to achieve location and control of software defects. With the communication interface circuit,the upper computer RS 232 serial communication is used to receive the information transmitted by the lower computer. According to the results of executive trajectory organization,trajectory selection and suspicion rate calculation of the lower computer,the evaluation report standard is designed,so as to obtain the coordinates of defect location. The specific defect location information is displayed by means of upper computer. The system test was carried out on Windows platform. The test results show that the positioning accuracy of the system can reach 93%,which meets people′ s high standard requirement of software reliability.