33results about How to "Improve development and testing efficiency" patented technology

The invention discloses a method and system for collecting and processing an electronic injection signal of a vehicle, and the method comprises the following specific steps that 1) a remote collection device transmits collection parameter configuration information; 2) a vehicle-mounted terminal receives the collection parameter configuration information, converts the collection parameter configuration information into CPP protocol data, configures an electronic injection signal collection parameter of a vehicle ECU through a CAN bus, then obtains an electronic injection signal, transmitted by the vehicle ECU, in a CPP protocol format, and then transmits the electronic injection signal to the remote collection device after conversion and processing; 3) the remote collection device receives the electronic injection signal, deblocks the electronic injection signal according to an object relation mapping table, carries out the preprocessing of the deblocked signal data, and then stores the data. According to the invention, CAN-bus drive and CCP communication protocol stack are separated from conventional electronic injection data collection software, thereby independently forming the vehicle-mounted terminal with a function of wireless communication. Moreover, an on-site / remote collection device is combined, and a function of on-site collection is considered, thereby achieving the function of remote data collection, and greatly improving the development and testing efficiency of the whole vehicle.

The present invention relates to the technical field of electronic control. A CAN-bus based remote data real-time collection, analysis and statistics system and method of the present invention, the system includes mobile terminal equipment and a remote center system, and the remote center system includes a DBC file processing device, a signal data decapsulation device, and a signal data decapsulation device. Preprocessing device, signal data statistics device, signal data abnormal processing device and signal data analysis chart generation device, the mobile terminal equipment communicates with the remote center system through the GSM / 3G network, the system solves the problem of complex and massive CAN data being reported in real time. Difficulties in analysis, conversion, statistics and storage can provide important auxiliary functions for vehicle research and development. The method of the present invention is applied to the above system, and the method greatly improves the efficiency of a series of operations such as extracting signal data from CAN data blocks, performing signal merging and conversion, and signal data statistics and storage.

The invention provides a railway signal simulation system. The railway signal control simulation system comprises a train number simulation system, a centralized dispatching simulation system, an outdoor signal simulation system, a computer interlocking simulation system and a train control simulation system, wherein the train number simulation system is used for generating train number information; the centralized dispatching simulation system is used for generating signal control commands, dispatching commands and temporary speed-limiting commands; the outdoor signal simulation system is used for generating an equipment status signal according to the equipment status of outdoor signal simulation equipment; the computer interlocking simulation system is used for generating access status information and equipment control commands according to the received track interval safety information and equipment status signal; and the train control simulation system is used for generating the track interval safety information and temporary speed-limiting status information according to the temporary speed-limiting commands and the access status information. The railway signal control simulation system provided by the invention achieves independent debugging of actual subsystems, and improves the development test efficiency.

The invention discloses a log file processing system and method. The processing system comprises a trunk process information file module, a read-write monitoring information file module and an analog quantity real-time acquisition information file module; the trunk process information file module is used for recoding process information of system testing; the read-write monitoring information file module is used for monitoring input-output information of a specified read-write interface; and the analog quantity real-time acquisition information file module is used for recording analog quantity real-time acquisition information in a testing process. The log file processing method provided by the invention adopts a monitoring pointer to indicate the quantity of log files in a buffer area; when the quantity of the log files exceeds a threshold, then the buffer area is reset, so that the problem of memory overflow caused by the continuous accumulation of log files can be solved; besides, a time label is added on each test record to indicate the time of failures, so that the failure information can be accurately and efficiently positioned.