Emergency cut-off valve automatic closing device based on electronic gyroscope

Abstract

The invention relates to the field of tank type dangerous goods-transportation vehicles, in particular to an emergency cut-off valve automatic closing device based on an electronic gyroscope. The emergency cut-off valve automatic closing device based on the electronic gyroscope is characterized in that one end of an input module is connected with an air pressure switch and an electronic gyroscopemodule, the other end of the input module is connected with one end of a microcontroller module, the other end of the microcontroller module is connected with a power supply and one end of an output module, and the other end of the output module is connected with an electromagnetic valve and a sound-light alarm module. Through the adoption of the technical scheme, the structure of the device is simple, and the purpose of judging the working state of the emergency cut-off valve and the purpose of automatically turning off the cut-off valve or giving an alarm can be achieved.

Description

technical field [0001] The invention relates to the field of tank-type dangerous goods transport vehicles, and relates to an automatic closing device for an emergency cut-off valve based on an electronic gyroscope. Background technique [0002] According to the requirements of the GB7258-2017 standard, the design and manufacture of tank-type dangerous goods transport vehicles equipped with emergency shut-off devices should ensure that the emergency shut-off valve can be automatically closed when the speed of the vehicle transporting liquid dangerous goods is greater than 5km / h, or when the engine When starting, an obvious signal device can be used to prompt the driver to close the emergency shut-off valve. [0003] The technical difficulty in realizing this function lies in the collection and judgment of vehicle speed. There are various shortcomings in other schemes at present. 1. Use the wheel speed or mileage sensor signal to count the pulses, and multiply the tire circu...

AI Technical Summary

Problems solved by technology

1. Use the wheel speed or mileage sensor signal to count pulses, and multiply it by the tire circumference to get the vehicle speed. The wiring of this scheme is complicated, and the parameters set for different tires are different. At the same time, the chassis circuit needs to be changed, which is prone to failure

2. Using GPS or Beidou satellite navigation signals to obtain vehicle speed, this solution has shortcomings such as signal drift, no signal when tunnels are blocked, inconvenient installation, and the need for a separate antenna.

3. Use ultrasonic radar to measure speed. This scheme has special requirements for the installation direction, and it has a great influence on the speed judgment when the road conditions are poor.

4. Use the mechanical acceleration sensor to directly judge the acceleration. This solution requires installation in a horizontal direction, and it is impossible to calculate the specific speed.

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