Industrial control all-in-one product application in railway vehicle statistics

An overview, system during the running of the train on the road, the railway is necessary must also to monitor through the jurisdiction of the vehicle statistics. Applied to the industrial computer, using the traditional gold finger card form of PCI bus. They pass the equipment near the tracks, the train vibration impact to its, goldfinger connection unstable faults is clearly exposed, it's easy to have a system to run unstable, signal collection and incomplete, communication error, and once the equipment problems for repair must also will stop the operation. Face the task of railway transportation is becoming more and more heavy, the present situation of the split vehicles increasing, using CPCI products instead of the original IPC industrial computer is a big trend. Second, the system requires CPCI standard is a kind of new open industrial computer, it has the openness, good heat resistance, high stability, high reliability and hot plug etc. , applicable to the industrial field, real-time data acquisition, instrument measurement, the common characteristic is modular, strong structural design, mainly composed of three leading technology: 1, the electric features of PCI local bus. 2, industrial-grade Europe card packaging structure and specification 3, 2 mm high density pinhole connector plug from behind the case before/board, the board through the connector and the guide rail is fixed, and tighten the screws on the front panel, the vertical installation of the card, to improve the cooling condition, gold finger than PCI connection has better resistance to impact, resistance to vibration characteristics. Pinhole connector completely airtight characteristics, greatly improve the board corrosion resistance, and increase the load capacity. More attractive is characterized by hot plug, is under the condition of the running system continuously electricity, pull out or insert function template, and not disturb the normal work of a technical system, which greatly improved the equipment maintenance. Third, the system description train vehicle monitoring statistics, using a set of CPCI equipment, including the CPCI chassis, chassis and main board, function board, etc. In the railway administrations road junction within the base station equipment placed inside track accessories, track several sensors, its function is to detect a rail wheels, whenever there is a wheel, sensor shall have a corresponding signals, using the CPCI function board the signal acquisition, storage, and then execute the next step. Can obtain after the number of the wheel, for example, calculated the train car section number; According to the collected signal time interval, the train can be calculated the speed; According to the order of sensor signal to determine the direction of the train. Use another kind of CPCI detection, threatening the car type decoding mostly function of passenger and freight car and other car compartment has its unique tag number,, as the train passed through decoding board collected the tag number of each car, can be aware of the train to perform what kind of transportation. The above information for the railway vehicle within the jurisdiction of unified deployment is of great significance. Every function board implementation of backup install, this is to ensure the validity of the collected data, and made one thousand one piece of the board, the other a continue to work, do not affect the operation of the whole system. For disorders of the card at the same time, can be directly from pull out inside the case, insert the new card, make full use of the hotplug CPCI product characteristics, guarantee the system run continuously, convenient maintenance. Four, the system block diagram