Gravity sensing device circuit based on small radar and display control module

Abstract

The utility model relates to a gravity sensing device circuit and a display control module based on a small radar, and the gravity sensing device circuit comprises a ball switch K1, one end of which is connected with a pull-up resistor R1 and a resistor R2, and the other end of which is grounded GND; one end of the pull-up resistor R1 is connected with a power supply end 3V3, and the other end of the pull-up resistor R1 is connected with a capacitor C1 and a ball switch K1; and the RC filter circuit comprises a resistor R2 and a capacitor C1. The display control module comprises a gravity sensing device and a display control device, wherein the gravity sensing device is the gravity sensing control circuit; the input end of the interface controller is connected with the signal output end of the gravity sensing device; and the display screen is connected with the output end of the interface controller through a data bus. According to the display control module, on the basis of ensuring normal display of a miniaturized radar, display content and direction switching is carried out according to the state of the miniaturized radar, and the structure is simple and reliable.

Description

Technical Field

[0001] This utility model relates to the field of radar control technology, and in particular to a gravity sensing device circuit and display and control module based on a small radar. Background Technology

[0002] For most small, man-portable radar systems, the handholding direction is fixed during use, typically left hand gripping and right hand holding the weapon. However, in actual use, a single grip direction cannot adapt to all scenarios. Therefore, the ability to switch the radar display direction becomes particularly important.

[0003] In order to overcome the shortcomings of existing small radar display interfaces, such as the single display direction and the inability to automatically adjust according to the actual usage direction, there is an urgent need for a device that can automatically switch the display direction according to the usage status of the small radar. Summary of the Invention

[0004] To solve the above-mentioned technical problems, this utility model provides a gravity sensing device circuit based on a small radar, comprising:

[0005] The ball switch K1 has a pull-up resistor R1 and a resistor R2 connected at one end, and grounded at the other end (GND). It is used to control the on / off state of the control signal output port J1 according to the device's attitude. Specifically, when the device flips, the ball switch will disconnect, thereby changing the state of the circuit and generating a flip signal.

[0006] The pull-up resistor R1 is connected to the 3V3 power supply at one end and to the capacitor C1 and the ball switch K1 at the other end. It serves to limit current, divide voltage, and stabilize the voltage or current in the circuit. As a pull-up resistor, R1 ensures that the circuit maintains a stable high level when K1 is not triggered.

[0007] An RC filter circuit, including resistor R2 and capacitor C1, is connected in parallel between the signal output port J1 and ground to suppress signal noise.

[0008] In one embodiment of the present invention, the ball switch is configured to close when the device circuit is not flipped, so that the signal output port J1 is grounded; and to open when the device circuit is flipped, so that the signal output port J1 is pulled high to the power supply terminal 3V3 voltage through the pull-up resistor R1.

[0009] In one embodiment of this utility model, the positive and negative terminals of the power supply input terminal of the signal output port J1 are connected to the power supply terminal 3V3 and ground, respectively.

[0010] This utility model also provides a display and control module based on a small radar. The display and control module uses a gravity sensor (1) to automatically switch the display direction according to the usage status of the small radar, including:

[0011] Gravity sensing device, such as the gravity sensing control circuit described above;

[0012] The interface control is connected to the signal output terminal of the gravity sensing device.

[0013] The display screen is connected to the output terminal of the interface control via a data bus.

[0014] In one embodiment of this utility model, the interface control receives a high-level or low-level signal output from the signal output port J1, and drives the display screen to switch the displayed content through the data bus.

[0015] Compared with the prior art, the above-mentioned technical solution of this utility model has the following advantages: The display and control module of this utility model uses a fixed bracket within the device and a gravity sensing device is installed in a corresponding direction. When the direction of use of the handheld individual radar changes, the gravity sensing device will shift, and a signal will be sent to the display program through a trigger device. The program then switches the display direction internally. While ensuring the normal display of the miniaturized radar, the display content and direction are switched according to the status of the miniature radar, and the structure is simple and reliable. Attached Figure Description

[0016] To make the content of this utility model easier to understand, the present utility model will be further described in detail below with reference to specific embodiments and accompanying drawings.

[0017] Figure 1 This is a schematic block diagram of the display and control module based on a small radar according to this utility model;

[0018] Figure 2 This is a schematic diagram of the circuit of the gravity sensing device described in this utility model.

[0019] As shown in the figure, 1. Gravity sensor, 2. Interface control, 3. Display screen. Detailed Implementation

[0020] like Figure 1 and Figure 2 As shown, this embodiment provides a gravity sensing device circuit based on a small radar, including:

[0021] The ball switch K1 has a pull-up resistor R1 and a resistor R2 connected at one end, and grounded at the other end (GND). It is used to control the on / off state of the control signal output port J1 according to the device's attitude. Specifically, when the device flips, the ball switch will disconnect, thereby changing the state of the circuit and generating a flip signal.

[0022] The pull-up resistor R1 has one end connected to the 3V3 power supply and the other end connected to the capacitor C1 and the ball switch K1. It serves to limit current, divide voltage, and stabilize the voltage or current in the circuit. As a pull-up resistor, R1 ensures that the circuit maintains a stable high level when K1 is not triggered.

[0023] An RC filter circuit, including resistor R2 and capacitor C1, is connected in parallel between the signal output port J1 and ground to suppress signal noise.

[0024] Specifically, among them Figure 2 As shown, the pull-up resistor (R1) has a resistance of 10kΩ, the RC filter circuit has a resistor (R2) with a resistance of 470Ω, a capacitor (C1) with a capacitance of 0.1μF, and a ball switch (K1) that is an SW-200 type ball switch, which is closed when the device is not flipped and open when it is flipped.

[0025] When the device circuit described in this embodiment is in normal working condition, the gravity sensing device 1 will always maintain the same output state. If the display and control module itself is flipped at this time, it will trigger... Figure 2 When the ball switch in the circuit is disconnected, the resulting toggle signal will change the state and trigger... Figure 1 In the interface control of program 2, change the display instructions. Figure 1 The display on screen 3 is switched.

[0026] This embodiment also provides a display and control module based on a small radar. The display and control module automatically switches the display direction according to the usage status of the small radar using a gravity sensor 1, including:

[0027] Gravity sensing device 1, such as the gravity sensing control circuit described above;

[0028] Interface control 2, whose input terminal is connected to the signal output terminal of the gravity sensing device 1;

[0029] The display screen 3 is connected to the output of the interface control 2 via a data bus.

[0030] In one embodiment of this utility model, the interface control 2 receives a high-level or low-level signal output from the signal output port J1, and drives the display screen 3 to switch the displayed content through the data bus.

[0031] Specifically, in combination Figure 1 The display and control module consists of a gravity sensor 1, an interface control 2, and a display screen 3. The gravity sensor 1 is connected to the interface control 2 via a flip signal output from the signal output port J1, and the interface control 2 is then connected to the display screen 3 via display commands.

[0032] In summary, when the device circuit is in normal working condition, the gravity sensor 1 maintains an output state. If the device circuit is flipped, the K1 ball switch will disconnect, changing the circuit state and generating a flip signal. This signal will trigger the program in interface control 2, changing the display command and thus switching the state of display screen 3.

[0033] Through the coordinated operation of these components, the display screen state can be switched when the device is flipped.

[0034] Obviously, the above embodiments are merely illustrative examples for clear explanation and are not intended to limit the implementation. Those skilled in the art will recognize that other variations or modifications can be made based on the above description. It is neither necessary nor possible to exhaustively list all possible implementations here. However, obvious variations or modifications derived therefrom are still within the protection scope of this invention.

Claims

1. A small radar-based gravity sensing device circuit, characterized by, It comprises: A ball switch K1, one end of which is connected with a pull-up resistor R1 and a resistor R2, and the other end is grounded GND, for controlling the on-off of a signal output port J1 according to a device posture control signal; The pull-up resistor R1, one end of which is connected with a power supply end 3V3, and the other end is connected with a capacitor C1 and the ball switch K1; An RC filter circuit, comprising a resistor R2 and a capacitor C1, which are connected in parallel between the signal output port J1 and the ground.

2. The gravity sensing device circuit of claim 1, wherein: The ball switch is configured to be closed when the device circuit is not overturned, so that the signal output port J1 is grounded; and is opened when the device circuit is overturned, so that the signal output port J1 is pulled up to the voltage of the power supply end 3V3 through the pull-up resistor R1.

3. The gravity sensing device circuit of claim 1, wherein: The positive and negative poles of the power supply input end of the signal output port J1 are respectively connected with the power supply end 3V3 and the ground.

4. A small radar-based display control module that automatically switches the display direction according to the use state of the small radar using a gravity sensing device (1), characterized by, It comprises: A gravity sensing device (1), a gravity sensing device circuit as claimed in any one of claims 1-3; An interface control (2), the input end of which is connected with the signal output end of the gravity sensing device (1); A display screen (3), which is connected with the output end of the interface control (2) through a data bus.

5. The display-control module of claim 4, wherein: The interface control (2) receives the high or low level signal output by the signal output port J1, and drives the display screen (3) to switch the display content through the data bus.

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