Wheel axle temperature and wind pressure monitoring device based on wireless ad hoc networks and method for railway passenger cars or wagons

Abstract

The invention relates to a wheel axle temperature and wind pressure monitoring device based on wireless ad hoc networks and a method for railway passenger cars or wagons, and aims to achieve that random networking can be realized, monitoring work is real-time and accurate, a low power consumption working mode is realized, the operation is simple, the maintenance cost is low, and the maintenance is simple and convenient. The invention adopts the technical scheme that the wheel axle temperature and wind pressure monitoring device based on the wireless ad hoc networks for the railway passenger cars or wagons is characterized in that a locomotive unit and a group of carriage root units are included, a network system with a routing function is built between the locomotive unit and each carriage root unit through a wireless ad hoc network such as a Zigbee network, a WiFi network or a Bluetooth network, wherein, the locomotive unit comprises a coordinator module, a GSM (Global System for Mobile Communications) communication module, an industrial computer and a card reader, and each carriage root unit comprises a root unit module, a parameter collection sensor and a battery. The inventionis suitable for real-time monitoring of physical parameters such as wheel axle temperature, braking wind pressure and the like of a wagon group with a large quantity.

Description

technical field [0001] The invention relates to a real-time monitoring device and method for truck axle temperature and wind pressure based on a wireless ad hoc network. It is mainly suitable for real-time monitoring of physical parameters such as wheel axle temperature and brake wind pressure on a large number of railway wagon clusters, and it is also suitable for real-time monitoring of other clustered wagon teams. Background technique [0002] Real-time all-weather monitoring of the axle temperature of the wheels of the train wagons in operation is of great significance to the safe operation of the railway. Send it to the locomotive driver and dispatch monitoring center. [0003] The railway freight cars currently in operation cannot install real-time alarm devices for axle temperature detection on the bearing bushes of the wheels due to various reasons, mainly relying on the measurement of THDS infrared non-contact devices installed at fixed points on the railway. The a...

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Problems solved by technology

[0003] The railway freight cars currently in operation cannot install real-time alarm devices for axle temperature detection on the bearing bushes of the wheels due to various reasons, mainly relying on the measurement of THDS infrared non-contact devices installed at fixed points on the railway. The alarm detection of this system is performed every Install a set of infrared monitoring devices every 30 kilometers, and the alarm interval is about half an hour. This method has non-real-time and a certain amount of possible missed detection. Larger accidents such as eager cutting shafts, the consequences are disastrous

[0004] In addition, real-time monitoring of the braking wind pressure of each carriage of the running train freight car has not yet been realized, which is also a potential safety hazard in the current railway system

[0005] After retrieval, the Chinese utility model patent No. 200920259074.1 discloses a vehicle-mounted infrared axle temperature monitoring device. The vehicle-mounted infrared axle temperature monitoring device is installed at the axle of the train, which solves the problem of not being able to monitor in real time, but there are still the following Disadvantages: 1) In view of the characteristics of random attachment of truck compartments, this technology is difficult to be applied to the monitoring of trucks; 2) Signal transmission is carried out in a wired manner, the probability of mechanical failure is relatively high, and the power supply cannot be provided on the truck ; 3) The mechanical connection method, when there are many positions to be monitored, the cables will take up a lot of space; 4) When a fault occurs, it is not convenient to find out the specific cable that has a fault from a large number of cables, and when it needs to be replaced When, the process is complicated and the operation is difficult

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