Device for realizing switching between front camera and rear camera by using Hall IC (integrated circuit)
By detecting changes in the position of the magnet using Hall effect IC, the CPU is triggered to quickly switch between the front and rear cameras, solving the problem of insufficient speed and accuracy in camera switching in existing technologies and improving the user experience.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-14
- Publication Date
- 2026-04-14
AI Technical Summary
Existing camera switching technologies rely on direct user operations, such as buttons, touchscreens, or voice commands, which results in slow and inaccurate switching in fast-paced scenarios, impacting the user experience.
The camera switching is achieved using Hall IC. By installing a Hall sensor and a magnet on the camera body, the Hall sensor detects changes in the position of the magnet, triggering a fast CPU response to switch the camera between front and rear.
It enables fast and reliable switching between the front and rear cameras, simplifies system design, improves system integration, and enhances user experience.
Smart Images

Figure CN224124200U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of electronic equipment technology, specifically a device that uses Hall IC to switch between front and rear cameras. Background Technology
[0002] In current technological advancements, camera systems are widely used in various electronic products, particularly in smartphones, surveillance equipment, and automotive electronics. These devices typically require switching between front and rear cameras in different scenarios to adapt to varying usage needs.
[0003] Existing camera switching technologies mostly rely on direct user operation, such as switching via buttons, touchscreens, or voice commands. Especially in application scenarios that require rapid response, the delay in signal processing and switching logic leads to camera switching that is not fast or accurate enough, affecting the user experience. Therefore, we propose a device that uses Hall IC to switch between front and rear cameras to solve the above-mentioned problems. Utility Model Content
[0004] To address the shortcomings of existing technologies, this invention provides a device for switching between front and rear cameras using Hall effect ICs. This solves the problem that most existing camera switching technologies rely on direct user operation, such as switching via buttons, touchscreens, or voice commands. Especially in application scenarios requiring rapid response, the delays in signal processing and switching logic lead to slow and inaccurate camera switching, affecting the user experience.
[0005] To achieve the above objectives, this utility model is implemented through the following technical solution: a device for switching between front and rear cameras using Hall IC, including a fixing strap;
[0006] A base is fixedly installed on the fixing strap;
[0007] The camera body is mounted on one end of the base via a folding component;
[0008] A magnet is installed on the base, and a Hall sensor corresponding to the magnet is installed on the camera body.
[0009] The camera body also contains a control module and a CPU.
[0010] Preferably, the sixth pin of the Hall sensor is electrically connected to one end of resistor R1 and port HALL-INT, the other end of resistor R1 is electrically connected to port VIO-V, the other end of resistor R1 is electrically connected to the fourth pin of the Hall sensor, and is also electrically connected to one end of capacitor C1, the other end of capacitor C1 is electrically connected to ground.
[0011] Preferably, the second pin of the Hall sensor is connected to ground.
[0012] Preferably, the Hall sensor is model OCH166AV6AD.
[0013] Beneficial effects
[0014] This invention provides a device for switching between front and rear cameras using a Hall effect IC. Compared with the prior art, it has the following advantages:
[0015] This device, which uses Hall IC to switch between front and rear cameras, can quickly and reliably detect changes in the position of a magnet through a Hall sensor and trigger a rapid CPU response to achieve timely switching of the camera body. This improves switching speed and reliability, simplifies system design, enhances system integration, and provides users with a better user experience. Attached Figure Description
[0016] Figure 1 This is a schematic diagram of the overall structure of this utility model;
[0017] Figure 2 This is a diagram of the Hall sensor integrated circuit of this utility model.
[0018] In the diagram: 101, fixing strap; 102, base; 103, camera body; 104, Hall sensor; 105, magnet. Detailed Implementation
[0019] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0020] like Figure 1 As shown:
[0021] A device for switching between front and rear cameras using Hall IC, comprising a fixing strap 101;
[0022] A base 102 is fixedly installed on the fixing strap 101;
[0023] The camera body 103 is mounted on one end of the base 102 via a folding component;
[0024] A magnet 105 is installed on the base 102, and a Hall sensor 104 corresponding to the magnet 105 is installed on the camera body 103.
[0025] The camera body 103 also contains a control module and a CPU;
[0026] like Figure 2 As shown: The sixth pin of Hall sensor 104 is electrically connected to one end of resistor R1 and port HALL-INT, the other end of resistor R1 is electrically connected to port VIO-1V8, the other end of resistor R1 is electrically connected to the fourth pin of Hall sensor 104, and is also electrically connected to one end of capacitor C1. The other end of capacitor C1 is connected to ground.
[0027] The second pin of Hall sensor 104 is connected to ground.
[0028] The Hall sensor 104 is model number OCH166AV6AD.
[0029] In this embodiment: When the device that uses Hall IC to switch between front and rear cameras is in use, when the magnet 105 approaches the Hall sensor 104, the Hall sensor 104 detects an increase in magnetic field strength and outputs a low level on the sixth pin of the Hall sensor 104. When the camera body 103 is flipped by the folding component, the Hall sensor 104 on the camera body 103 moves further away from the magnet 105, the magnetic field strength decreases, and the output of the sixth pin of the Hall sensor 104 becomes high, generating a falling edge.
[0030] The CPU first detects the falling edge interrupt signal generated by the sixth pin of the Hall sensor 104 through the interrupt pin. The CPU can then send control signals to the power control module of the camera, and drive the camera body 103 to flip back and forth through the control module.
[0031] Thus, the device that uses Hall sensor 104 to switch between front and rear cameras can quickly and reliably detect changes in the position of magnet 105 and trigger the CPU to respond rapidly, thereby enabling timely switching of the camera body 103 between front and rear. This improves the switching speed and reliability, simplifies system design, enhances system integration, and provides users with a better user experience.
[0032] It should be noted that the folding component may include a hinge shaft and a reset torsion spring. The camera body 103 is fixed to the hinge shaft, and the hinge shaft is rotatably connected to the base 102 through a bearing. Two sets of reset torsion springs are provided and are wound around the two ends of the hinge shaft. The two ends of the reset torsion springs are fixedly connected to the base 102 and the hinge shaft respectively. The camera body 103 has a built-in flipping drive mechanism. The flipping drive mechanism can be implemented using conventional technical means, which will not be described in detail.
[0033] Furthermore, any content not described in detail in this specification is existing technology known to those skilled in the art.
Claims
1. A device for switching between front and rear cameras using a Hall effect IC, characterized in that, Includes a fixing strap (101); A base (102) is fixedly installed on the fixing strap (101); The camera body (103) is mounted on one end of the base (102) via a folding component; A magnet (105) is installed on the base (102), and a Hall sensor (104) corresponding to the magnet (105) is installed on the camera body (103); The camera body (103) also contains a control module and a CPU.
2. The device for switching between front and rear cameras using Hall IC according to claim 1, characterized in that: The sixth pin of the Hall sensor (104) is electrically connected to one end of resistor R1 and port HALL-INT. The other end of resistor R1 is electrically connected to port VIO-1V8. The other end of resistor R1 is electrically connected to the fourth pin of the Hall sensor (104) and is electrically connected to one end of capacitor C1. The other end of capacitor C1 is electrically connected to ground.
3. The device for switching between front and rear cameras using Hall IC according to claim 1, characterized in that: The second pin of the Hall sensor (104) is connected to ground.
4. The device for switching between front and rear cameras using Hall IC according to claim 1, characterized in that: The Hall sensor (104) is model OCH166AV6AD.