Pitot tube heating control simulation system

Abstract

The utility model relates to the technical field of pitot tubes, and discloses a pitot tube heating control simulation system, which comprises a heating control panel module, a relay module, a power supply module and a pitot tube, the heating control panel module comprises a current detection circuit, a switch circuit and an indicator lamp circuit; the current detection circuit is electrically connected with the switching circuit and is used for detecting the voltage of a resistance wire when the pitot tube is heated; the switching circuit is electrically connected with the indicating lamp circuit and is used for simulating whether an engine runs or not and controlling the on-off of the relay module; and the indicating lamp circuit is used for simulating faults occurring when the pitot tube is heated. According to the utility model, a plurality of different fault modes can be set on the Pitot tube heating control simulation system, so that maintenance personnel can be trained to judge and check various circuit faults of Pitot tube heating.

Description

Technical Field

[0001] The utility model relates to the technical field of pitot tubes, in particular to a pitot tube heating control simulation system. Background Art

[0002] Aircraft pitot tubes are important flight parameter sensors, and pitot tube heating failures are common failures encountered during aircraft maintenance. Currently, there is no pitot tube heating control system project training platform in the civil aviation industry. Aircraft maintenance personnel can only conduct theoretical training on pitot tube heating control systems, and cannot simulate actual operation training for actual failures that occur during aircraft operation. Therefore, aircraft maintenance personnel have poor troubleshooting capabilities for pitot tube heating systems, and only have practical opportunities when they encounter aircraft pitot tube heating failures at work. Their business capabilities improve slowly, and it is difficult to accurately troubleshoot pitot tube heating system failures. Therefore, it is very important to improve the ability to troubleshoot pitot tube heating system failures to improve flight safety. Utility Model Content

[0003] The purpose of the utility model is to provide a pitot tube heating control simulation system, which can train maintenance personnel to judge and troubleshoot various circuit faults of pitot tube heating by setting a variety of different fault modes on the pitot tube heating control simulation system, so as to improve the ability to troubleshoot pitot tube heating system faults, thereby improving flight safety.

[0004] In order to achieve the above-mentioned purpose, the utility model provides a pitot tube heating control simulation system, including a heating control panel module, a relay module, a power supply module and a pitot tube; the heating control panel module includes a current detection circuit, a switch circuit and an indicator light circuit; the current detection circuit is electrically connected to the switch circuit, and is used to detect the voltage of the resistance wire when the pitot tube is heated; the switch circuit is electrically connected to the indicator light circuit, and is used to simulate whether the engine is running and control the on and off of the relay module; the indicator light circuit is used to simulate a fault when the pitot tube is heated.

[0005] In some embodiments, the power supply module includes a 12V AC power supply and a 12V DC power supply; the 12V AC power supply is used to power the Pitot tube when heating; the 12V DC power supply is used to power the heating control panel module and the relay module.

[0006] In some embodiments, the current detection circuit is an AC coupled, secondary full-wave rectifier circuit.

[0007] In some embodiments, the current detection circuit includes a first transformer, a first diode, a second diode, a third diode, a fourth diode, a first resistor, and a first capacitor.

[0008] In some embodiments, the switch circuit includes a first switch tube, a second switch tube, a second resistor, a third resistor and a first NAND gate circuit.

[0009] In some embodiments, the relay in the relay module is an R1070 relay.

[0010] In some embodiments, the indicator light in the indicator light circuit is tested by a pressing operation.

[0011] The embodiment of the utility model is a pitot tube heating control simulation system, which has the following beneficial effects compared with the prior art:

[0012] By setting a variety of different fault modes on the pitot tube heating control simulation system, it is possible to simulate the faults that occur in the pitot tube heating control process, train maintenance personnel to judge and troubleshoot various circuit faults of pitot tube heating, so as to improve the ability to troubleshoot pitot tube heating system faults, thereby improving flight safety. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 This is a block diagram of the components and connections of the Pitot tube heating control simulation system according to an embodiment of the utility model;

[0014] Figure 2 It is a circuit diagram of a Pitot tube heating control simulation system according to an embodiment of the utility model. DETAILED DESCRIPTION

[0015] In order to make the above-mentioned purposes, features and advantages of the utility model more obvious and easy to understand, the specific implementation methods of the utility model are described in detail below in conjunction with the accompanying drawings. In the following description, many specific details are set forth to facilitate a full understanding of the utility model. However, the utility model can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without violating the connotation of the utility model, so the utility model is not limited by the specific embodiments disclosed below.

[0016] In the description of the present invention, it is necessary to understand that the terms "length", "width", "up", "down", etc., indicating orientation or positional relationships, are based on the orientation or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0017] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of the present utility model, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0018] like Figure 1 As shown, a pitot tube heating control simulation system of a preferred embodiment of the utility model includes a heating control panel module 1, a relay module 2, a power module 3 and a pitot tube 4; the heating control panel module 1 includes a current detection circuit 11, a switch circuit 12 and an indicator light circuit 13; the current detection circuit 11 is electrically connected to the switch circuit 12, and is used to detect the voltage of the resistance wire when the pitot tube 4 is heated; the switch circuit 12 is electrically connected to the indicator light circuit 13, and is used to simulate whether the engine is running and control the on and off of the relay module 2; the indicator light circuit 13 is used to simulate a fault when the pitot tube 4 is heated.

[0019] In a specific embodiment, the power supply module 3 includes a 12V AC power supply and a 12V DC power supply; the 12V AC power supply is used to power the Pitot tube 4 when heating; the 12V DC power supply is used to power the heating control panel module 1 and the relay module 2.

[0020] like Figure 2 As shown, Figure 2 This is a circuit diagram of a pitot tube heating control simulation system according to an embodiment of the utility model;

[0021] In a specific embodiment, the current detection circuit 11 is an AC coupling, secondary full-wave rectification circuit.

[0022] In a specific embodiment, the current detection circuit 11 includes a first transformer T1, a first diode D1, a second diode D2, a third diode D3, a fourth diode D4, a first resistor R1 and a first capacitor C1.

[0023] In a specific embodiment, the switch circuit 12 includes a first switch tube Q1, a second switch tube Q2, a second resistor R2, a third resistor R3 and a first NAND gate circuit N1.

[0024] In a specific embodiment, the relay K1 in the relay module 2 is an R1070 relay.

[0025] In a specific embodiment, the indicator light in the indicator light circuit 13 is tested by a pressing operation.

[0026] It should be noted that in actual use, the heating control panel module 1 can be a P5-9 heating control panel, and the pitot tube heating uses the 12V AC power supply in the power module 3. The 12V AC power supply passes through the corresponding jump switch and then passes through the R1070 relay and the P5-9 heating control panel to reach the pitot tube 4 heating electric plug. The R1070 relay automatically closes after the engine is running, and the on and off of the switch circuit 12 is used to simulate whether the engine is running. The 12V AC power supply can also directly reach the current detection circuit 11 through the manual switch S1 of the P5-9 heating control panel, and then reach the corresponding pitot tube 4 heating electric plug.

[0027] The power supply of the P5-9 heating control panel and the R1070 relay uses the 12V DC power supply in the power module 3. The current detection circuit 11 in the P5-9 heating control panel is an AC coupling, secondary full-wave rectifier circuit, followed by a switch circuit 12 to control the corresponding heating fault light (indicator light) to light up. If the pitot tube 4 on the P5-9 heating control panel fails to heat, the indicator light in the indicator light circuit 13 can be tested by pressing the light.

[0028] In summary, the embodiment of the utility model provides a pitot tube heating control simulation system, which simulates the faults occurring in the pitot tube heating control process by setting a variety of different fault modes on the pitot tube heating control simulation system, and trains maintenance personnel to judge and troubleshoot various circuit faults of pitot tube heating, so as to improve the ability to troubleshoot pitot tube heating system faults, thereby improving flight safety.

[0029] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and substitutions can be made without departing from the technical principle of the present invention. These improvements and substitutions should also be regarded as the protection scope of the present invention.

Claims

1. A Pitot tube heating control simulation system, characterized in that: It includes a heating control panel module, a relay module, a power module and a Pitot tube; the heating control panel module includes a current detection circuit, a switch circuit and an indicator light circuit; the current detection circuit is electrically connected to the switch circuit and is used to detect the voltage of the resistance wire when the Pitot tube is heated; the switch circuit is electrically connected to the indicator light circuit and is used to simulate whether the engine is running and control the on and off of the relay module; the indicator light circuit is used to simulate a fault when the Pitot tube is heated.

2. The Pitot tube heating control simulation system according to claim 1, characterized in that: The power supply module includes a 12V AC power supply and a 12V DC power supply; the 12V AC power supply is used to supply power to the Pitot tube during heating; the 12V DC power supply is used to supply power to the heating control panel module and the relay module.

3. The Pitot tube heating control simulation system according to claim 1, characterized in that: The current detection circuit is an AC coupling, secondary full-wave rectification circuit.

4. The Pitot tube heating control simulation system according to claim 1, characterized in that: The current detection circuit includes a first transformer, a first diode, a second diode, a third diode, a fourth diode, a first resistor and a first capacitor.

5. The Pitot tube heating control simulation system according to claim 1, characterized in that: The switch circuit includes a first switch tube, a second switch tube, a second resistor, a third resistor and a first NAND gate circuit.

6. The Pitot tube heating control simulation system according to claim 1, characterized in that: The relay in the relay module is an R1070 relay.

7. The Pitot tube heating control simulation system according to claim 1, characterized in that: The indicator light in the indicator light circuit is tested by a pressing operation.

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