A wireless photosensitive sensing data acquisition controller

Abstract

The utility model discloses a wireless photosensitive sensing data acquisition controller, specifically related to photosensitive sensing control technical field, including controller casing, be provided with switch button and wireless signal pairing button on the controller casing, the inside of controller casing is provided with wireless photosensitive sensing end subassembly and USB receiving end subassembly, wireless photosensitive sensing end subassembly includes physical button circuit, photosensitive detection circuit, first MCU processing circuit, first wireless communication circuit, state light circuit and first power supply circuit, the USB receiving end subassembly includes second MCU processing circuit, second wireless communication circuit, second power supply circuit and USB communication interface circuit, the utility model discloses dual mode trigger, ensures accurate synchronous acquisition, and wireless communication is stable, and the compatibility is strong, and the operation is convenient, and the security is high.

Description

Technical Field

[0001] This utility model relates to the field of photosensitive sensing and control technology, specifically a wireless photosensitive sensing data acquisition controller. Background Technology

[0002] With the widespread adoption of digital healthcare, the combined use of medical imaging equipment and other medical devices during medical examinations and surgeries has become commonplace. For example, when a C-arm X-ray machine is used in conjunction with a medical navigation system, the navigation system typically needs to simultaneously acquire the patient's spatial pose data while the X-ray machine is taking the image. This not only increases operational complexity but can also lead to asynchronous data acquisition due to human error. While some automated data acquisition systems exist, they often rely on wired connections or complex setup processes, making them inflexible and unable to adapt to the needs of different medical environments. For example: Limitations of manual triggering: Traditional manual triggering requires the operator to manually operate the equipment or dedicated controller simultaneously with the imaging device (such as a C-arm) to send acquisition commands when the device is started. This results in an operation delay, which can easily lead to deviations in acquisition timing and affect the accuracy of diagnosis and treatment.

[0003] Poor compatibility of automatic triggering: Some automatic triggering solutions rely on dedicated interfaces between devices for signal interaction, but the interoperability of different device interface protocols is low, making device communication difficult and requiring complex hardware wiring, which increases the difficulty of deployment.

[0004] Limited connectivity poses risks: in medical operation scenarios, cables can easily interfere with surgery and there is a risk of accidental detachment, data acquisition failure, and potential medical safety hazards.

[0005] To address the shortcomings of the existing technology, there is an urgent need for an image acquisition and control system that is highly compatible, easy to operate, and has stable communication, in order to meet the high precision and high reliability requirements for image acquisition triggering in medical scenarios. Utility Model Content

[0006] The purpose of this invention is to provide a wireless photosensitive sensor data acquisition controller to solve the problems mentioned in the prior art.

[0007] To achieve the above objectives, this utility model provides the following technical solution: A wireless photosensitive sensor data acquisition controller includes a controller housing. The controller housing is provided with a power switch and a wireless signal pairing button. The controller housing contains a wireless photosensitive sensor assembly and a USB receiver assembly. The wireless photosensitive sensor assembly includes a physical button circuit, a photosensitive detection circuit, a first MCU processing circuit, a first wireless communication circuit, a status light circuit, and a first power supply circuit. The USB receiver assembly includes a second MCU processing circuit, a second wireless communication circuit, a second power supply circuit, and a USB communication interface circuit.

[0008] In a preferred embodiment, both the switch button and the wireless signal pairing button are equipped with status indicator lights. The physical button circuit includes a button SW1 circuit and a button SW2 circuit. The button SW1 circuit includes a capacitor C3, which is connected in parallel with a diode D1 and a resistor R10. The button SW2 circuit includes a capacitor C4, which is connected in parallel with a diode D2 and a resistor R11.

[0009] In a preferred embodiment, the photosensitive detection circuit includes a phototransistor Q30, which is connected in series with a voltage divider resistor R16, and the voltage divider resistor R16 is connected in parallel with a filter capacitor C9.

[0010] In a preferred embodiment, the first MCU processing circuit includes a microcontroller U9, a reset circuit, and a filter circuit. The reset circuit includes a resistor R45 and a capacitor C21 connected in series, and the filter circuit includes capacitors C24, C25, C26, C27, and C29 connected in parallel.

[0011] In a preferred embodiment, the first wireless communication circuit includes a wireless transceiver controller U10, a memory chip U11, and an antenna circuit. The wireless transceiver controller U10 is connected to capacitors C30, C31, C32, and C70 arranged in parallel. The antenna circuit includes a matching network consisting of an inductor L3, a crystal oscillator Y2, and capacitors C37 and C38.

[0012] In a preferred embodiment, the status light circuit includes LED D5 and LED D6, with LED D5 connected to resistors R41 and R43, and LED D6 connected to resistor R42.

[0013] In a preferred embodiment, the second MCU processing circuit includes a microcontroller U2, the NRST pin of the microcontroller U2 is externally connected to a reset element to realize power-on reset and abnormal reset, and the pin of the microcontroller U2 is connected to a crystal oscillator Y2.

[0014] In a preferred embodiment, the second wireless communication circuit includes a wireless transceiver controller U4, a storage chip U5, and an RF filter network, wherein the RF filter network is composed of capacitors C14, C15, C17, and C22.

[0015] In a preferred embodiment, the USB communication interface circuit uses a control chip U3 and a USB interface. Diodes D2 and D3 are connected in parallel at the D+ / D- pins of the USB interface, and capacitors C7 and C8 are connected in parallel to the control chip U3.

[0016] Compared with the prior art, the beneficial effects of this utility model are: Dual-mode triggering ensures accurate and synchronized data collection. It supports both automatic (light sensor) and manual (button trigger) modes. The automatic mode senses the start-up time of the medical imaging device's indicator light or light source, automatically and accurately matching the data acquisition time of the target device to avoid manual delays. The manual mode serves as a backup solution, improving system reliability and meeting the needs of different scenarios. The photosensitive sensor is placed close to the target light source for acquisition, and combined with the ADC conversion and instruction encoding of the MCU, it ensures accurate triggering timing; dual MCUs work together to control the system, with each module functioning independently yet in tandem, reducing the risk of single-point failure; Stable wireless communication and strong compatibility Improved accessibility of hand-eye coordination and positioning accuracy: The operator can trigger relevant instructions (such as sampling, marking, and confirmation) at the same time the probe tip is aligned with the anatomical target, avoiding relative displacement of the tool and tissue caused by putting down the instrument or moving to the screen / foot pedal, and indirectly reducing the risk of deviation caused by "state switching - repositioning"; Easy to operate and highly secure The wireless design avoids cable interference with medical or testing operations, eliminates the risk of data collection failure due to connection loss, and reduces risks. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 This is a schematic diagram of the physical button circuit of this utility model; Figure 3 This is a schematic diagram of the photosensitive detection circuit of this utility model; Figure 4 This is a schematic diagram of the structure of the first MCU processing circuit of this utility model; Figure 5 This is a schematic diagram of the structure of the first wireless communication circuit of this utility model; Figure 6 This is a schematic diagram of the status light circuit of this utility model; Figure 7 This is a schematic diagram of the structure of the second MCU processing circuit of this utility model; Figure 8 This is a schematic diagram of the structure of the second wireless communication circuit of this utility model; Figure 9 This is a schematic diagram of the USB communication interface circuit of this utility model.

[0018] The following are labeled in the diagram: 1. Controller housing; 2. Switch button; 3. Wireless signal pairing button; 4. Status indicator light. 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] Example: Please refer to Figure 1 This utility model provides a wireless photosensitive sensor data acquisition controller, the technical solution of which is as follows: A wireless photosensitive sensor data acquisition controller includes a controller housing 1, on which a power switch 2 and a wireless signal pairing button 3 are provided. Inside the controller housing 1, a wireless photosensitive sensor component and a USB receiver component are provided. The wireless photosensitive sensor component includes a physical button circuit, a photosensitive detection circuit, a first MCU processing circuit, a first wireless communication circuit, a status light circuit, and a first power supply circuit. The USB receiver component includes a second MCU processing circuit, a second wireless communication circuit, a second power supply circuit, and a USB communication interface circuit.

[0021] Please refer to Figure 2In a preferred embodiment, both the switch button 2 and the wireless signal pairing button 3 are equipped with status indicator lights 4. The physical button circuit includes a button SW1 circuit and a button SW2 circuit. The button SW1 circuit includes a capacitor C3, which is connected in parallel with a diode D1 and a resistor R10. The button SW2 circuit includes a capacitor C4, which is connected in parallel with a diode D2 and a resistor R11. The switch button 2 and the wireless signal pairing button 3 respectively realize the functions of "circuit power switch" and "manual command trigger". The pull-up resistor R11 and the current-limiting resistor R10 ensure that the pin is at a high level when the button is not pressed, and a level jump occurs when the button is pressed, avoiding false triggering caused by button bounce. As a "manual intervention interface", the ON / OFF button controls the overall power-on / power-off of the circuit; when the SELECT button (PA15 pin connected to the MCU) is pressed, a manual command (such as "manually trigger image acquisition") is sent to the MCU, adapting to scenarios where the automatic mode fails or requires active intervention.

[0022] Please refer to Figure 3 In a preferred embodiment, the photosensitive detection circuit includes a phototransistor Q30, which is connected in series with a voltage divider resistor R16. The voltage divider resistor R16 is connected in parallel with a filter capacitor C9. Different photosensitive sensors can be configured according to the application scenario (NPN type phototransistor is only an example). It has the characteristic that "the higher the light intensity, the lower the resistance value," achieving accurate sensing of target light. Voltage divider resistor: The 20KΩ resistor R16 is connected in series with the phototransistor to form a voltage divider circuit, converting changes in light intensity into a voltage signal. Filter capacitor: The 12pF capacitor C9 is connected in parallel to the voltage divider output terminal to filter out voltage fluctuations caused by ambient stray light, improving detection accuracy. Interface design: The GND and VCC_BAT power supply terminals are brought out through the Header 4 interface, and the output terminal is connected to the ADC1 pin (PA0) of the MCU to realize the transmission of voltage signals to the MCU. When there is target light shining on it, the resistance of phototransistor Q30 decreases, and the voltage divider circuit outputs a high level; when there is no light or the light is weak, the resistance of phototransistor Q30 is extremely high, and the output is a low level; the MCU collects this voltage signal through the ADC1 pin and determines whether it has reached the preset threshold, thereby identifying the change in target light.

[0023] Please refer to Figure 4In a preferred embodiment, the first MCU processing circuit includes a microcontroller U9, a reset circuit, and a filter circuit. The reset circuit includes a resistor R45 and a capacitor C21 connected in series. The filter circuit includes capacitors C24, C25, C26, C27, and C29 connected in parallel. The STM32L151C8T6 microcontroller U9 is used, which has low power consumption characteristics and rich peripheral interfaces, meeting the requirements of high-precision control and low power consumption. Reset circuit: Includes a 10KΩ resistor R45 and a 0.1μF capacitor C21 to achieve MCU power-on reset and manual reset, ensuring circuit startup stability; Filtering circuit: Four parallel 0.1μF capacitors C24, C25, C26, C27, and C29 are connected to filter out high-frequency noise in VCC_BAT (battery powered) and prevent power fluctuations from affecting MCU operation; Interface design: Reserves a USART communication interface (PA10 / PA9 pins), an SPI interface (for connecting the wireless communication module), and an ADC interface (PA0 pin, for connecting the photosensitive sensor detection circuit) to achieve multi-module data interaction. It receives light signals from the photosensitive sensor detection circuit and manual commands from the button circuit, analyzes the light intensity through ADC conversion (analog-to-digital conversion), generates control commands, and transmits them to the wireless communication circuit via the SPI protocol; simultaneously, it receives power signals from the voltage detection circuit and controls the status light circuit to display the device status.

[0024] Please refer to Figure 5 In a preferred embodiment, the first wireless communication circuit includes a wireless transceiver controller U10, a memory chip U11, and an antenna circuit. The wireless transceiver controller U10 is connected to capacitors C30, C31, C32, and C70 connected in parallel. The antenna circuit includes a matching network consisting of inductor L3, crystal oscillator Y2, capacitor C37, and capacitor C38. The NRF24L01P-R wireless transceiver controller U10 operates in the 2.4GHz ISM unlicensed band, supports the SPI communication protocol, and has power amplification function to improve the wireless signal transmission distance and anti-interference capability. Antenna circuit: Includes a 2.4nH inductor L3, a 3.2nH inductor XC2, 1.5pF capacitors C37 and C38, and antenna interface J17, forming a matching network to optimize impedance matching of the 2.4GHz RF signal and reduce signal attenuation; Filtering circuit: Includes 0.1μF capacitors C30, C31, C32, and C70, and a 10pF capacitor, to filter out noise in the VDD power supply and ensure stable operation of the wireless module; AT24010 memory chip U11 is used to store wireless communication parameters to prevent parameter loss after power failure.

[0025] Please refer to Figure 6In a preferred embodiment, the status light circuit includes LEDs D5 and D6. LED D5 is connected to resistors R41 and R43, and LED D6 is connected to resistor R42. The two LEDs provide visual feedback for "power switch and battery status" and "communication pairing status," respectively. Battery status: The MCU obtains the battery voltage through a voltage detection circuit. When the voltage is ≥ a preset normal threshold (e.g., 3.6V), LED D6 (green light) is on and LED D5 (red light) is off. When the voltage is < a preset low battery threshold (e.g., 3.0V), LED D5 (red light) is on and LED D6 (green light) is off. Pairing status: When not paired, LED D5 (connection status light) periodically lights up and off. During pairing, LED D5 flashes (frequency 1Hz). After pairing is complete, LED D5 remains constantly on, achieving real-time visualization of the communication status.

[0026] Please refer to Figure 7 In a preferred embodiment, the second MCU processing circuit includes a microcontroller U2. An external reset element is connected to the NRST pin of the microcontroller U2 to achieve power-on reset and abnormal reset. A crystal oscillator Y2 is connected to the pin of the microcontroller U2, providing an 8MHz stable clock signal to the MCU to ensure the timing accuracy of instruction parsing and communication. The reset circuit uses an external reset element to achieve power-on reset and abnormal reset of the MCU, preventing program crashes. The interface design includes a reserved SPI interface (SCK / MOSI / MISO / CSN / CE) for connecting a wireless communication module and a USART interface (TXD / RXD) for connecting a USB interface module, enabling multi-module data interaction.

[0027] Please refer to Figure 8 In a preferred embodiment, the second wireless communication circuit includes a wireless transceiver controller U4, a memory chip U5, and an RF filter network. The RF filter network is composed of capacitors C14, C15, C17, and C22. The RF circuit includes a crystal oscillator Y1 providing a 16MHz clock signal to the NRF24L01P-R, and capacitors C14, C15, C17, and C22 forming the RF filter network to optimize impedance matching of the 2.4GHz signal and reduce signal attenuation. The control interface connects to the MCU via an SPI interface (SCK / MOSI / MISO / CSN / CE), and the IRQ pin is used to interrupt signal transmission, enabling rapid command reception. The power amplification includes an integrated RF power amplifier circuit with an output power of 0dBm, improving wireless signal reception sensitivity (≤-90dBm).

[0028] Please refer to Figure 9 In a preferred embodiment, the USB communication interface circuit includes a control chip U3 and a USB interface. Diodes D2 and D3 are connected in parallel at the D+ / D- pins of the USB interface. The control chip U3 is connected with capacitors C7 and C8 connected in parallel. The control chip U3 implements bidirectional "USART-USB" protocol conversion, converting USART instructions output by the MCU into USB HID protocol data for transmission to the computer; simultaneously, it receives USB feedback data from the computer, converts it into USART data, and sends it back to the MCU. A protection circuit: Diodes D2 and D3 are connected in parallel at the D+ / D- pins of the USB interface to provide ±8kV contact discharge protection, preventing electrostatic damage to the CH330N and the MCU. A filtering circuit: Capacitors C7 and C8 form a power filter to reduce the impact of USB power fluctuations on the CH330N.

[0029] The working principle of this utility model: 1) Connect the USB receiver component to the target data acquisition device that can establish a communication connection; 2) The wireless photosensitive sensor terminal component can be placed near the light emission port of the medical X-ray imaging equipment by means of pasting, hanging, etc. 3) Press the "Power" button on the wireless photosensitive sensor component to turn on the power. The power indicator light will be green, indicating that the component is turned on normally. Press and hold the "Select" button to pair with the USB receiver component until the pairing indicator light is solid blue, indicating that the pairing is successful.

[0030] 4) Start automatic control to synchronously collect the required data between the target device and the medical imaging equipment.

[0031] 5) If the photosensitive sensor is used, you can manually press the “Select” button to perform temporary manual data acquisition.

[0032] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A wireless photosensitive sensing data acquisition controller comprising a controller housing (1), characterized in that: The controller housing (1) is provided with a switch button (2) and a wireless signal pairing button (3). The controller housing (1) is provided with a wireless photosensitive sensor component and a USB receiver component. The wireless photosensitive sensor component includes a physical button circuit, a photosensitive detection circuit, a first MCU processing circuit, a first wireless communication circuit, a status light circuit and a first power supply circuit. The USB receiver component includes a second MCU processing circuit, a second wireless communication circuit, a second power supply circuit and a USB communication interface circuit.

2. A wireless photosensitive sensing data acquisition controller according to claim 1, wherein: Status indicator lights (4) are provided at both the switch button (2) and the wireless signal pairing button (3). The physical button circuit includes a button SW1 circuit and a button SW2 circuit. The button SW1 circuit includes a capacitor C3, and the capacitor C3 is connected in parallel with a diode D1 and a resistor R10. The button SW2 circuit includes a capacitor C4, and the capacitor C4 is connected in parallel with a diode D2 and a resistor R11.

3. A wireless photosensitive sensing data acquisition controller according to claim 1, wherein: The photosensitive detection circuit includes a phototransistor Q30, which is connected in series with a voltage divider resistor R16, and the voltage divider resistor R16 is connected in parallel with a filter capacitor C9.

4. The wireless photosensitive sensing data acquisition controller of claim 1, wherein: The first MCU processing circuit includes a microcontroller U9, a reset circuit, and a filter circuit. The reset circuit includes a resistor R45 and a capacitor C21 connected in series. The filter circuit includes capacitors C24, C25, C26, C27, and C29 connected in parallel.

5. A wireless photosensitive sensing data acquisition controller according to claim 1, wherein: The first wireless communication circuit includes a wireless transceiver controller U10, a storage chip U11, and an antenna circuit. The wireless transceiver controller U10 is connected to capacitors C30, C31, C32, and C70, which are arranged in parallel. The antenna circuit includes a matching network consisting of an inductor L3, a crystal oscillator Y2, and capacitors C37 and C38.

6. A wireless photosensitive sensing data acquisition controller according to claim 1, wherein: The status light circuit includes LED D5 and LED D6. LED D5 is connected to resistors R41 and R43, and LED D6 is connected to resistor R42.

7. The wireless photosensitive sensing data acquisition controller of claim 1, wherein: The second MCU processing circuit includes a microcontroller U2, whose NRST pin is connected to an external reset element to realize power-on reset and abnormal reset. The pin of the microcontroller U2 is connected to a crystal oscillator Y2.

8. The wireless photosensitive sensing data acquisition controller of claim 1, wherein: The second wireless communication circuit includes a wireless transceiver controller U4, a storage chip U5, and an RF filter network, wherein the RF filter network is composed of capacitors C14, C15, C17, and C22.

9. The wireless photosensitive sensing data acquisition controller of claim 1, wherein: The USB communication interface circuit uses a control chip U3 and a USB interface. Diodes D2 and D3 are connected in parallel at the D+ / D- pins of the USB interface. Capacitors C7 and C8 are connected in parallel to the control chip U3.

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