Demodulation circuit structure for simulating flight

Abstract

The utility model relates to the technical field of demodulation circuits, in particular to a demodulation circuit structure for simulating flight. Comprising a circuit board, a plurality of sensor signal input ends and an adjusting module, each sensor signal input end and the adjusting module are arranged on the circuit board, and the adjusting module is connected with each sensor signal input end; the sensor signal input end is used for being connected with a sensor and converting an output signal of the simulated flight operation device into a direct current signal; the adjusting module is used for converting an output signal of the simulated flight operation device into a direct-current signal and transmitting the direct-current signal to the data acquisition equipment, and through the mode, the effects of acquiring various data and improving the acquisition precision are achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of demodulation circuits, in particular to a demodulation circuit structure for simulating flight. Background Art

[0002] With the rapid development of aviation technology, flight simulators are being used more and more widely. Flight simulators provide pilots with a real flight experience by simulating the flight environment, helping them improve their flying skills. In order to simulate aircraft flight to the greatest extent in the test environment, it is necessary to accurately collect various data during the flight of the aircraft. However, at present, in the process of collecting various data, each data can only be collected separately, which is inconvenient.

[0003] Therefore, it is very necessary to propose a demodulation circuit structure for simulated flight that can collect various data and improve the collection accuracy. Utility Model Content

[0004] The utility model aims to provide a demodulation circuit structure for simulating flight, which can collect various data and improve the collection accuracy.

[0005] To achieve the above-mentioned purpose, the utility model adopts a demodulation circuit structure for simulated flight, comprising a circuit board, a plurality of sensor signal input terminals and an adjustment module, each of the sensor signal input terminals and the adjustment module are respectively arranged on the circuit board, and the adjustment module is respectively connected to each of the sensor signal input terminals;

[0006] The sensor signal input terminal is used to connect a sensor and convert the output signal of the simulated flight operation device into a DC signal;

[0007] The regulating module is used to convert the output signal of the simulated flight operating device into a DC signal, and transmit the DC signal to the data acquisition device.

[0008] Wherein, the demodulation circuit structure of the simulated flight further includes an excitation power supply, and each of the sensor signal input terminals is respectively connected to the excitation power supply;

[0009] The excitation power supply is used to provide power.

[0010] Wherein, the adjustment module includes a chip U1, a resistor R1, a resistor R2, a resistor R3, a resistor R4, a resistor R5, a resistor R6, a capacitor C5, a capacitor C6, a capacitor C7, a capacitor C8, a capacitor C13, a capacitor C14, a capacitor C15, a capacitor C16, a capacitor C17, a capacitor C18, a capacitor C19 and an oscillation circuit, each of the sensor signal input ends is respectively connected to the capacitor C13, the resistor R3 is respectively connected to the capacitor C13 and the resistor R4, the capacitor C14, the capacitor C16, the capacitor C17, the capacitor C19, the capacitor C18, the capacitor C15, the resistor R5, the resistor R6 and the oscillation circuit are respectively connected to the chip U1, the resistor R1 and the resistor R2 are respectively connected to the chip U1, the capacitor C7 is respectively connected to the capacitor C8 and the chip U1, and the capacitor C5 is respectively connected to the capacitor C6 and the chip U1.

[0011] Wherein, the oscillation circuit includes capacitor C9, capacitor C10, capacitor C11, capacitor C12, inductor L1, capacitor C20, capacitor C21, capacitor C22, capacitor C23 and inductor L2, the inductor L1 and the inductor L2 are respectively connected to the chip U1, the capacitor C20, the capacitor C21, the capacitor C22, the capacitor C23 are respectively connected to the inductor L1, the capacitor C9, the capacitor C10, the capacitor C11 and the capacitor C12 are respectively connected to the inductor L2.

[0012] Wherein, the regulating module also includes a filtering circuit, which includes a capacitor C160, a capacitor C113, a capacitor C114, a capacitor C115, a capacitor C116, a capacitor C117, an inductor L3 and a transformer T1, the capacitor C160 is connected to the capacitor C113, the capacitor C113 and the capacitor C114 are respectively connected to the inductor L3, the capacitor C115 is connected to the capacitor C114, the capacitor C115 and the capacitor C116 are respectively connected to the transformer T1, and the capacitor C117 is connected to the capacitor C116.

[0013] Wherein, the demodulation circuit structure of the simulated flight also includes a heat dissipation module, and the heat dissipation module is fixedly connected to the circuit board.

[0014] Wherein, the heat dissipation module includes a mounting frame, a driving component and fan blades, the mounting frame is fixedly connected to the circuit board, the driving component is fixedly connected to the mounting frame, and the fan blades are connected to the driving component.

[0015] Wherein, the heat dissipation module further includes a heat dissipation channel and a plurality of heat dissipation sub-paths, one end of the heat dissipation channel is connected to the installation frame, and each of the heat dissipation sub-paths is respectively connected to the other end of the heat dissipation channel.

[0016] Wherein, the heat dissipation module further includes a heat sink, and the heat sink is arranged at one end of the installation frame.

[0017] Wherein, the driving assembly includes a driving motor and a reducer, the driving motor is fixedly connected to the mounting frame and is located inside the mounting frame, the reducer is fixedly connected to the output end of the driving motor, and the fan blades are fixedly connected to the output end of the reducer.

[0018] The utility model provides a demodulation circuit structure for simulated flight, wherein the sensor signal input end is used to connect the sensor and convert the output signal of the simulated flight operation device into a DC signal; the adjustment module is used to convert the output signal of the simulated flight operation device into a DC signal and transmit the DC signal to the data acquisition device, so as to acquire various data and improve the acquisition accuracy. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0020] Figure 1 The utility model is a schematic diagram of the structure of the demodulation circuit for simulating flight.

[0021] Figure 2 The utility model is a circuit principle diagram of a demodulation circuit structure for simulating flight.

[0022] Figure 3 The utility model is a circuit principle diagram of an oscillating circuit for simulating flight.

[0023] Figure 4 The utility model is a circuit principle diagram of a filter circuit for simulating flight.

[0024] 10-circuit board, 20-sensor signal input terminal, 30-regulation module, 40-excitation power supply, 51-installation frame, 52-drive motor, 53-reducer, 54-fan blade, 55-heat dissipation channel, 56-heat dissipation sub-path, 57-heat sink. DETAILED DESCRIPTION

[0025] See also Figure 1 to Figure 4 ,in Figure 1 It is a schematic diagram of the structure of the demodulation circuit structure for simulated flight. Figure 2 This is the circuit schematic diagram of the demodulation circuit structure for simulated flight. Figure 3 This is the circuit diagram of the oscillator circuit for simulating flight. Figure 4 This is the circuit schematic of the filter circuit for simulated flight.

[0026] The utility model provides a demodulation circuit structure for simulating flight: comprising a circuit board 10, a plurality of sensor signal input terminals 20 and an adjustment module 30, each of the sensor signal input terminals 20 and the adjustment module 30 being respectively arranged on the circuit board 10, and the adjustment module 30 being respectively connected to each of the sensor signal input terminals 20;

[0027] The sensor signal input terminal 20 is used to connect a sensor and convert the output signal of the simulated flight operation device into a DC signal;

[0028] The regulating module 30 is used to convert the output signal of the simulated flight operating device into a DC signal and transmit the DC signal to the data acquisition device.

[0029] In this embodiment, the sensor signal input terminal 20 is connected to the sensor and converts the output signal of the simulated flight operation device into a DC signal; the adjustment module 30 converts the output signal of the simulated flight operation device into a DC signal, and transmits the DC signal to the data acquisition device, by collecting the signals of the joystick sensor, the pedal sensor, and the throttle sensor, and then converting the output signal of the simulated flight operation device into a DC signal, thereby obtaining the effect of collecting various data and improving the collection accuracy.

[0030] Furthermore, the demodulation circuit structure of the simulated flight also includes an excitation power supply 40, and each of the sensor signal input terminals 20 is respectively connected to the excitation power supply 40;

[0031] The excitation power supply 40 is used to provide power.

[0032] In this embodiment, the excitation power supply 40 is used to provide power for collecting the steering column sensor, the pedal sensor, and the throttle sensor.

[0033] Further, the adjustment module 30 includes a chip U1, a resistor R1, a resistor R2, a resistor R3, a resistor R4, a resistor R5, a resistor R6, a capacitor C5, a capacitor C6, a capacitor C7, a capacitor C8, a capacitor C13, a capacitor C14, a capacitor C15, a capacitor C16, a capacitor C17, a capacitor C18, a capacitor C19 and an oscillation circuit, each of the sensor signal input terminals 20 is respectively connected to the capacitor C13, the resistor R3 is respectively connected to the capacitor C13 and the resistor R4, the capacitor C14, the capacitor C16, the capacitor C17, the capacitor C19, the capacitor C18, the capacitor C15, the resistor R5, the resistor R6 and the oscillation circuit are respectively connected to the chip U1, the resistor R1 and the resistor R2 are respectively connected to the chip U1, the capacitor C7 is respectively connected to the capacitor C8 and the chip U1, and the capacitor C5 is respectively connected to the capacitor C6 and the chip U1.

[0034] In this embodiment, the chip model is AD698, which is used in conjunction with LVDT to convert the mechanical position of the sensor into a unipolar or bipolar DC voltage with high accuracy and repeatability. All circuit functions are integrated on the chip, and the AD698 can convert the original LVDT output into a proportional DC signal by adding a few external passive components to set the frequency and gain. The AD698 first drives the LVDT, then reads the output voltage of the LVDT and generates a DC voltage signal proportional to the core position; a sine wave function oscillator and power amplifier are used to drive the LVDT, and two synchronous demodulation stages are used to decode the primary and secondary voltages. The decoder determines the ratio of the output voltage to the input drive voltage (A / B), and then multiplies it by a proportional coefficient. This can eliminate the proportional coefficient error caused by the amplitude drift of the primary drive and improve temperature performance and stability. The filter stage and amplifier can output the result according to the comparison.

[0035] Furthermore, the oscillation circuit includes capacitor C9, capacitor C10, capacitor C11, capacitor C12, inductor L1, capacitor C20, capacitor C21, capacitor C22, capacitor C23 and inductor L2, the inductor L1 and the inductor L2 are respectively connected to the chip U1, the capacitor C20, the capacitor C21, the capacitor C22, the capacitor C23 are respectively connected to the inductor L1, and the capacitor C9, the capacitor C10, the capacitor C11 and the capacitor C12 are respectively connected to the inductor L2.

[0036] In this embodiment, the oscillation circuit includes a multivibrator, which generates a triangle wave and drives a sine wave generator to generate a low-distortion sine wave, the frequency and amplitude of the sine wave are determined by a resistor and a capacitor. The output frequency is adjustable from 20Hz to 20kHz, the output effective amplitude is adjustable from 2V to 24V, and the typical value of the total harmonic distortion is 50dB.

[0037] Furthermore, the regulating module 30 also includes a filtering circuit, which includes a capacitor C160, a capacitor C113, a capacitor C114, a capacitor C115, a capacitor C116, a capacitor C117, an inductor L3 and a transformer T1, the capacitor C160 is connected to the capacitor C113, the capacitor C113 and the capacitor C114 are respectively connected to the inductor L3, the capacitor C115 is connected to the capacitor C114, the capacitor C115 and the capacitor C116 are respectively connected to the transformer T1, and the capacitor C117 is connected to the capacitor C116.

[0038] In this embodiment, in order to ensure that the output DC signal is not interfered by the external environment, a filtering circuit is designed for the output DC signal. The capacitor in the circuit plays a role in shielding high-frequency signals, and the inductor has impedance in the high-frequency region. When the input signal is a high-frequency signal, the impedance of the capacitor is very small, so that the signal can pass through the capacitor and be shorted to the bottom, and will not reach the output end. In this way, the high-frequency signal can be effectively suppressed and the low-frequency signal can be retained. On the contrary, when the input signal is a low-frequency signal, the impedance of the capacitor becomes large and cannot pass effectively, so that the low-frequency signal can pass through the inductor, be amplified and transmitted to the output end. The signal is output through the connector for collection by the digital acquisition equipment.

[0039] Furthermore, the demodulation circuit structure for simulated flight also includes a heat dissipation module, and the heat dissipation module is fixedly connected to the circuit board 10 .

[0040] In this embodiment, the heat dissipation module is used to perform heat dissipation processing.

[0041] Furthermore, the heat dissipation module includes a mounting frame 51, a driving assembly and fan blades 54, the mounting frame 51 is fixedly connected to the circuit board 10, the driving assembly is fixedly connected to the mounting frame 51, and the fan blades 54 are connected to the driving assembly.

[0042] In this embodiment, the installation frame 51 is used to install the driving component and control the operation of the driving component. The driving component drives the fan blades 54 to rotate, thereby accelerating the air flow rate and achieving the heat dissipation function.

[0043] Furthermore, the heat dissipation module further includes a heat dissipation channel 55 and a plurality of heat dissipation sub-paths 56 , one end of the heat dissipation channel 55 is connected to the mounting frame 51 , and each of the heat dissipation sub-paths 56 is respectively connected to the other end of the heat dissipation channel 55 .

[0044] In this embodiment, a plurality of heat dissipation sub-paths 56 are used to merge into the heat dissipation channel 55 to expand the air circulation range and improve the heat dissipation effect.

[0045] Furthermore, the heat dissipation module further includes a heat sink 57 , and the heat sink 57 is disposed at one end of the installation frame 51 .

[0046] In this embodiment, the mounting frame 51 is used to mount the driving component and control the operation of the driving component. The driving component drives the fan blades 54 to rotate, thereby accelerating the air flow rate. The hot air flows to the heat sink 57 for cooling, thereby improving the heat dissipation effect.

[0047] Furthermore, the driving assembly includes a driving motor 52 and a reducer 53, the driving motor 52 is fixedly connected to the mounting frame 51 and is located inside the mounting frame 51, the reducer 53 is fixedly connected to the output end of the driving motor 52, and the fan blades 54 are fixedly connected to the output end of the reducer 53.

[0048] In this embodiment, the driving motor 52 is in operation, and the driving motor 52 cooperates with the reducer 53 to drive the fan blades 54 to rotate, thereby accelerating the air flow rate and achieving the heat dissipation function.

[0049] The above disclosure is only a preferred embodiment of the present invention, and certainly cannot be used to limit the scope of rights of the present invention. Ordinary technicians in this field can understand that all or part of the processes of the above embodiment and equivalent changes made according to the claims of the present invention still fall within the scope covered by the utility model.

Claims

1. A demodulation circuit structure for simulating flight, characterized in that: It comprises a circuit board, a plurality of sensor signal input terminals and an adjustment module, each of the sensor signal input terminals and the adjustment module are respectively arranged on the circuit board, and the adjustment module is respectively connected to each of the sensor signal input terminals; The sensor signal input terminal is used to connect a sensor and convert the output signal of the simulated flight operation device into a DC signal; The regulating module is used to convert the output signal of the simulated flight operating device into a DC signal, and transmit the DC signal to the data acquisition device.

2. The demodulation circuit structure for simulating flight as claimed in claim 1, characterized in that: The demodulation circuit structure of the simulated flight also includes an excitation power supply, and each of the sensor signal input terminals is respectively connected to the excitation power supply; The excitation power supply is used to provide power.

3. The demodulation circuit structure for simulating flight as claimed in claim 1, characterized in that: The regulating module includes a chip U1, a resistor R1, a resistor R2, a resistor R3, a resistor R4, a resistor R5, a resistor R6, a capacitor C5, a capacitor C6, a capacitor C7, a capacitor C8, a capacitor C13, a capacitor C14, a capacitor C15, a capacitor C16, a capacitor C17, a capacitor C18, a capacitor C19 and an oscillation circuit, each of the sensor signal input ends is respectively connected to the capacitor C13, the resistor R3 is respectively connected to the capacitor C13 and the resistor R4, the capacitor C14, the capacitor C16, the capacitor C17, the capacitor C19, the capacitor C18, the capacitor C15, the resistor R5, the resistor R6 and the oscillation circuit are respectively connected to the chip U1, the resistor R1 and the resistor R2 are respectively connected to the chip U1, the capacitor C7 is respectively connected to the capacitor C8 and the chip U1, and the capacitor C5 is respectively connected to the capacitor C6 and the chip U1.

4. The demodulation circuit structure for simulating flight as claimed in claim 3, characterized in that: The oscillation circuit includes capacitor C9, capacitor C10, capacitor C11, capacitor C12, inductor L1, capacitor C20, capacitor C21, capacitor C22, capacitor C23 and inductor L2. The inductor L1 and the inductor L2 are respectively connected to the chip U1, the capacitor C20, the capacitor C21, the capacitor C22, and the capacitor C23 are respectively connected to the inductor L1, and the capacitor C9, the capacitor C10, the capacitor C11 and the capacitor C12 are respectively connected to the inductor L2.

5. The demodulation circuit structure for simulating flight as claimed in claim 3, characterized in that: The regulating module also includes a filtering circuit, which includes a capacitor C160, a capacitor C113, a capacitor C114, a capacitor C115, a capacitor C116, a capacitor C117, an inductor L3 and a transformer T1, the capacitor C160 is connected to the capacitor C113, the capacitor C113 and the capacitor C114 are respectively connected to the inductor L3, the capacitor C115 is connected to the capacitor C114, the capacitor C115 and the capacitor C116 are respectively connected to the transformer T1, and the capacitor C117 is connected to the capacitor C116.

6. The demodulation circuit structure for simulating flight as claimed in claim 1, characterized in that: The simulated flight demodulation circuit structure also includes a heat dissipation module, and the heat dissipation module is fixedly connected to the circuit board.

7. The demodulation circuit structure for simulating flight as claimed in claim 6, characterized in that: The heat dissipation module comprises a mounting frame, a driving component and fan blades. The mounting frame is fixedly connected to the circuit board, the driving component is fixedly connected to the mounting frame, and the fan blades are connected to the driving component.

8. The demodulation circuit structure for simulating flight as claimed in claim 7, characterized in that: The heat dissipation module further comprises a heat dissipation channel and a plurality of heat dissipation sub-paths, one end of the heat dissipation channel is connected to the installation frame, and each of the heat dissipation sub-paths is respectively connected to the other end of the heat dissipation channel.

9. The demodulation circuit structure for simulating flight as claimed in claim 7, characterized in that: The heat dissipation module further comprises a heat sink, and the heat sink is arranged at one end of the installation frame.

10. The demodulation circuit structure for simulating flight according to claim 7, characterized in that: The driving assembly includes a driving motor and a reducer. The driving motor is fixedly connected to the mounting frame and is located inside the mounting frame. The reducer is fixedly connected to the output end of the driving motor, and the fan blades are fixedly connected to the output end of the reducer.

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