Pressure sensor device and control method

Abstract

The invention discloses a pressure sensor device and a control method. The device comprises a base, a first pressure sensor, a second pressure sensor, a power mechanism, a communication shaft and a main control unit, wherein the base is provided with a first detection channel, a second detection channel, a communication channel and a medium inlet channel; the first pressure sensor is arranged in the first detection channel; the second pressure sensor is arranged in the second detection channel; and the communication shaft is arranged in the communication channel. In the initial state, the first pressure sensor is put into use, and the first detection channel, the communication channel and the medium inlet channel communicate with one another. When the medium pressure value collected by thefirst pressure sensor is not normal, the main control unit starts the second pressure sensor and controls the power mechanism to move to make the communication shaft to move, so that the second detection channel, the communication channel and the medium inlet channel communicate with one another, and automatic switching of the pressure sensors is realized without shutdown. It can be seen that thedevice ensures the operation reliability of equipment, such as diesel engines, using the device.

Description

technical field [0001] The invention relates to the technical field of pressure sensors, in particular to a pressure sensor device and a control method. Background technique [0002] Existing marine diesel engines are equipped with various pressure sensors, which are used to monitor various pressure values ​​of the diesel engine to ensure that the various pressures of the diesel engine are within the required range, thereby ensuring the reliable operation of the diesel engine. When there is a problem with the pressure value of the medium, the diesel engine will send out an alarm signal to remind the crew on board to check the diesel engine. If the pressure value is too low or disappears, the diesel engine will alarm and stop without external control. [0003] However, none of the existing pressure sensors has the function of automatic switching without stopping. Take the oil pressure sensor as an example: during the operation of the ship, once the oil pressure sensor is dam...

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Problems solved by technology

[0003] However, the existing pressure sensors do not have the function of automatic switching without stopping

Take the oil pressure sensor as an example: during the operation of the ship, once the oil pressure sensor is damaged and cannot send out the oil pressure signal, the ship will stop without external control, and the ship is prone to the danger of capsizing after stopping at sea , resulting in irreparable damage

Even if external control is carried out to ensure that the diesel engine does not stop, the oil pressure in the oil passage is high, and the pressure sensor cannot be replaced under the condition of high-pressure oil

[0004] When the status information of the diesel engine cannot be obtained, there are risks to the operation of the diesel engine and the ship

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