Linear camera control circuit for a golf simulation system detector

Abstract

The utility model discloses a linear camera control circuit of golf simulation system detector, the VDD foot of linear array image sensor connects the Vout foot of low voltage difference linear voltage stabilizer, the VDD foot of linear array image sensor, the Vout foot of low voltage difference linear voltage stabilizer are commonly connected with electrolytic capacitor C3, non-polarity capacitor C4, the AO foot of linear array image sensor connects non-polarity capacitor C5, the CE foot of low voltage difference linear voltage stabilizer is connected with non-polarity capacitor C2, the Vin foot of low voltage difference linear voltage stabilizer is connected with electrolytic capacitor C1, the negative pole of schottky diode D1 is connected with resistance R1, the other end of resistance R1 connects the CE foot of low voltage difference linear voltage stabilizer, electrolytic capacitor C1, non-polarity capacitor C2, electrolytic capacitor C3, non-polarity capacitor C4, non-polarity capacitor C5 other end ground GND. The circuit of the product has filtering and energy storage, to provide the steady, low ripple power supply required for linear array image sensor U1, ensure the definition and consistency of image signal, avoid the power voltage drop when working, filter out high-frequency interference.

Description

Technical Field

[0001] This utility model relates to a camera detection and control device for a golf simulation system, and more particularly to a linear camera control circuit for a golf simulation system detector. Background Technology

[0002] 1. Chinese Patent Publication No. CN113079330A discloses a multi-line array image sensor and an image processing method. The multi-line array image sensor includes: a control unit, a set of parallel ADCs, N pixel arrays, and M output circuits; the set of parallel ADCs includes M ADCs, and the M ADCs and M output circuits are connected one-to-one; the control unit is adapted to generate D sets of electrode signals in a first timing sequence, and inputs the D sets of electrode signals to the corresponding pixel arrays and output circuits respectively, so that the first image output by the D sets of electrode signals has a preset sub-pixel displacement relative to a reference image; wherein, the output circuits inputting the electrode signals and the first timing sequence are determined based on the preset sub-pixel displacement and the physical spacing between the pixel arrays. Using the above scheme, a multi-line array image sensor can more flexibly obtain multiple images of the same scene with preset sub-pixel displacements.

[0003] 2. Chinese Patent Publication No. CN219592537U discloses a linear array image sensor chip and an image sensor, including a photosensitive unit, a photosensitive pixel, a photosensitive diode, a transmission switch, and an amplifier. One end of the transmission switch is connected to the negative terminal of the photosensitive diode, and the other end of the transmission switch is connected to the input terminal of the amplifier; a signal storage unit; a signal transmission unit; and a timing control unit. The timing control unit includes a row start signal pin, a clock signal pin, an exposure control signal pin, a cascade start input signal pin, and a cascade start output signal pin. This allows the exposure control pin to control the on-time of the transmission switch, ensuring that the exposure time is the same for each row of the image. This solves the technical problem in the prior art where different exposure amounts in images acquired due to different row periods of the image sensor chip lead to poor image quality, thus improving the quality of the acquired images.

[0004] The above discloses the application of linear image sensors, but does not disclose the specific control circuit. Linear image sensors have low power and high sensitivity, and have high requirements for voltage stability. Currently, most linear image sensors are powered by inductors and low-voltage DC controllers. During the application process, the power supply voltage of the inductors and low-voltage DC controllers is unstable during instantaneous image detection and instantaneous signal transmission, resulting in an uneven pixel signal transmission process and an uneven transition in pixel clarity. Utility Model Content

[0005] To solve the above-mentioned technical problems, this utility model provides a linear camera control circuit for a golf simulation system detector with a reasonable structural design and stable voltage and current.

[0006] The solution to the above technical problem is as follows:

[0007] A linear camera control circuit for a golf simulation system detector includes a line-to-line connector 1, a line-to-line connector 2, and a line-to-line connector 3, as well as a linear array image sensor and a low-dropout linear regulator; the VDD pin of the linear array image sensor is connected to the Vout pin of the low-dropout linear regulator; the GND pin of the linear array image sensor is connected to the GND pin of the low-dropout linear regulator.

[0008] The VDD pin of the linear image sensor and the Vout pin of the low dropout linear regulator are connected to an electrolytic capacitor C3 and a non-polarized capacitor C4. The other ends of the electrolytic capacitor C3 and the non-polarized capacitor C4 are connected to the GND pin of the linear image sensor and the GND pin of the low dropout linear regulator.

[0009] A non-polarized capacitor C5 is connected between the AO pin of the linear image sensor and the GND pin of the linear image sensor, and between the GND pin of the low-dropout linear regulator U2.

[0010] A non-polarized capacitor C2 is connected between the GND pin of the linear array image sensor, the GND pin of the low-dropout linear regulator, and the CE pin of the low-dropout linear regulator.

[0011] An electrolytic capacitor C1 is connected between the GND pin of the linear image sensor, the GND pin of the low-dropout linear regulator, and the Vin pin of the low-dropout linear regulator.

[0012] Pin 5 of wire-to-wire connector one, pin 3 of wire-to-wire connector two, and pin 3 of wire-to-wire connector three are all connected to the positive terminal of Schottky diode D1. The negative terminal of Schottky diode D1 is connected to resistor R1, and the other end of resistor R1 is connected to the CE pin of the low dropout linear regulator.

[0013] The beneficial effects of the linear camera control circuit of the golf simulation system detector of this utility model are as follows: The electrolytic capacitor C3 of this product is mainly used for filtering and energy storage at the output of the low dropout linear regulator U2 to provide a stable, low-ripple power supply required by the linear image sensor U1, ensuring the clarity and consistency of the image signal. The linear image sensor U1 may experience instantaneous high current demands during exposure or data transmission. The large-capacity energy storage of electrolytic capacitors C1 and C3 can quickly respond to this demand, preventing the low dropout linear regulator U2 from entering protection mode due to instantaneous overload or causing a drop in the power supply voltage of the linear image sensor U1. To maximize the filtering effect, a non-polarized capacitor C4 is connected in parallel across the electrolytic capacitor C3. Electrolytic capacitor C3 and non-polarized capacitor C4 are connected between the output of the low dropout linear regulator U2 and ground. This arrangement shortens the parasitic inductance path between the capacitor and the low dropout linear regulator U2, reduces the attenuation of high-frequency signals, ensures that the capacitor can respond promptly to fluctuations in the output voltage, filters out high-frequency noise, and improves power supply stability. The non-polarized capacitor C5 filters out high-frequency interference in the output signal of the AO pin of the linear image sensor, improving signal purity by bypassing high-frequency components. In high-speed signal transmission, the non-polarized capacitor C5 adjusts the impedance characteristics of the signal loop, reducing reflections and ringing, making it particularly suitable for this high-frequency linear image sensor U1. The control circuit using this product allows for smoother pixel signal transmission in the camera image, resulting in a smooth transition in pixel sharpness. In the power input circuit, the Schottky diode D1 is connected in series with resistor R1. Resistor R1 limits the reverse current of the Schottky diode D1. When the power supply polarity is reversed, the Schottky diode D1 is reverse-biased and cut off. Resistor R1 prevents overcurrent damage to the diode due to excessive reverse voltage, enhancing circuit protection reliability and ensuring reliable startup of the low-dropout linear regulator U2. Attached Figure Description

[0014] Figure 1 This is the circuit diagram of the product of this utility model. Detailed Implementation

[0015] like Figure 1 The diagram shows a linear camera control circuit for a golf simulation system detector, comprising a line-to-line connector J1, a line-to-line connector J2, a line-to-line connector J3, a linear image sensor U1, and a low-dropout linear regulator U2; the VDD pin of the linear image sensor U1 is connected to the Vout pin of the low-dropout linear regulator U2; the GND pin of the linear image sensor U1 is connected to the GND pin of the low-dropout linear regulator U2.

[0016] The VDD pin of the linear image sensor U1 and the Vout pin of the low dropout linear regulator U2 are connected to an electrolytic capacitor C3 and a non-polarized capacitor C4. The other ends of the electrolytic capacitor C3 and the non-polarized capacitor C4 are connected to the GND pin of the linear image sensor U1 and the GND pin of the low dropout linear regulator U2.

[0017] A non-polarized capacitor C5 is connected between the AO pin of the linear image sensor U1 and the GND pin of the linear image sensor U1 and the GND pin of the low dropout linear regulator U2.

[0018] A non-polarized capacitor C2 is connected between the GND pin of the linear image sensor U1, the GND pin of the low-dropout linear regulator U2, and the CE pin of the low-dropout linear regulator U2.

[0019] An electrolytic capacitor C1 is connected between the GND pin of the linear image sensor U1, the GND pin of the low-dropout linear regulator U2, and the Vin pin of the low-dropout linear regulator U2.

[0020] Pin 5 of wire-to-wire connector one, pin 3 of wire-to-wire connector two J2, and pin 3 of wire-to-wire connector three J3 are all connected to the positive terminal of Schottky diode D1. The negative terminal of Schottky diode D1 is connected to resistor R1, and the other end of resistor R1 is connected to the CE pin of low dropout linear regulator U2.

[0021] The linear camera control circuit uses the linear image sensor U1 as its core, achieving integrated exposure and sequential readout of single-row pixels in the image. The low-dropout linear regulator U2 provides voltage regulation and decoupling for the entire circuit. Electrolytic capacitor C3 is mainly used for filtering and energy storage at the output of the low-dropout linear regulator U2, providing the linear image sensor U1 with a stable, low-ripple power supply to ensure image signal clarity and consistency. Electrolytic capacitor C3 also absorbs low-frequency fluctuations, making the output voltage smoother. During exposure or data transmission, the linear image sensor U1 may experience instantaneous high current demands. The large-capacity energy storage of electrolytic capacitors C1 and C3 can quickly respond to these demands, preventing the low-dropout linear regulator U2 from entering protection mode due to instantaneous overload or causing a drop in the power supply voltage of the linear image sensor U1. To maximize the filtering effect, non-polarized capacitor C4 is connected in parallel across electrolytic capacitor C3. Electrolytic capacitor C3 and non-polarized capacitor C4 are connected between the output terminal of low-dropout linear regulator U2 and ground. This arrangement can shorten the parasitic inductance path between the capacitor and low-dropout linear regulator U2, reduce the attenuation of high-frequency signals, ensure that the capacitor can respond to the fluctuation of output voltage in a timely manner, filter out high-frequency noise, and improve power supply stability.

[0022] The control circuit of this product allows for a smoother transmission of pixel signals in camera images, resulting in a smooth transition in pixel clarity.

[0023] The non-polarized capacitor C5 can filter out high-frequency interference (such as electromagnetic coupling noise) in the output signal of the AO pin of the linear image sensor, improving signal purity by bypassing high-frequency components. In high-speed signal transmission, the non-polarized capacitor C5 can adjust the impedance characteristics of the signal circuit, reducing reflection and ringing phenomena, and is especially suitable for this high-frequency linear image sensor U1.

[0024] In the power input circuit, Schottky diode D1 is connected in series with resistor R1. The series resistor R1 can limit the reverse current of Schottky diode D1. When the power supply polarity is reversed, Schottky diode D1 is reverse cut off. Resistor R1 prevents the diode from being damaged by overcurrent due to excessive reverse voltage, enhances the reliability of circuit protection, and ensures reliable start-up of the low dropout linear regulator U2.

[0025] The SI pin signal of the linear image sensor U1 is used for serial input of image data, transmitting pixel values ​​to the processor in bit-order. The CLK pin signal of the linear image sensor U1 provides a synchronization clock, ensuring that the bit order of the data remains stable during transmission, achieving synchronous exposure and high-speed readout of pixels. The AO pin output signal of the linear image sensor U1 is amplified with low noise and then sent to subsequent processing circuits to meet the requirements of real-time contour capture and trajectory analysis of a high-speed moving golf ball.

[0026] Linear image sensor U1: Contains a pixel charge integral array, sample-and-hold and shift registers.

[0027] The pins of the linear image sensor U1 are: VDD, GND, SI (for power-on / reset), CLK (for shift clock), and AO (for analog signal output).

[0028] The linear camera control circuit operates at 3.3V or 5V, according to the power specifications of the line array image sensor U1.

[0029] The AO interface of the linear image sensor U1 improves the dynamic range and resistance to operating condition drift.

[0030] The main function of the non-polarized capacitor C2 is to filter out high-frequency noise and stabilize the power supply voltage of the low-dropout linear regulator U2. Bypassing the non-polarized capacitor C2, high-frequency signals are introduced to the ground line, reducing interference to the circuit. The non-polarized capacitor C2 has low impedance to high-frequency signals, preventing the low-dropout linear regulator U2 from malfunctioning or becoming less stable due to high-frequency interference. When the load changes suddenly, the non-polarized capacitor C2 releases energy, alleviates voltage fluctuations, and works with the low-dropout linear regulator U2 to achieve a more stable output voltage.

[0031] Pin 7 of line-to-line connector J1, pin 4 of line-to-line connector J1, pin 2 of line-to-line connector J1, pin 5 of line-to-line connector J2, and pin 5 of line-to-line connector J3 are all connected to the GND pin of the linear image sensor U1 and the GND pin of the low dropout linear regulator U2.

[0032] Pin 8 of wire-to-wire connector J1, pin 9 of wire-to-wire connector J1, pin 1 of wire-to-wire connector J2, and pin 1 of wire-to-wire connector J3 are all connected to the Vin pin of the low-dropout linear regulator U2.

[0033] Pin 3 of line-to-line connector J1, pin 2 of line-to-line connector J2, and pin 4 of line-to-line connector J3 are all connected to pin AO of the linear image sensor U1.

[0034] Pin 5 of line-to-line connector J1, pin 3 of line-to-line connector J2, and pin 5 of line-to-line connector J3 are all connected to the CLK pin of the linear image sensor U1.

[0035] Pin 6 of line-to-line connector J1, pin 4 of line-to-line connector J2, and pin 2 of line-to-line connector J3 are all connected to pin S1 of the linear image sensor U1.

[0036] The pin connections of the aforementioned linear image sensor U1 and low-dropout linear regulator U2 with their corresponding line-to-line connectors J1, J2, and J3 ensure the integrity of signal transmission and the stability of power supply, providing reliable hardware support for the camera's high-speed image acquisition.

Claims

1. A linear camera control circuit for a golf simulation system detector, comprising a line-to-line connector one, a line-to-line connector two, and a line-to-line connector three, characterized in that: It also includes a linear image sensor and a low-dropout linear regulator; the VDD pin of the linear image sensor is connected to the Vout pin of the low-dropout linear regulator; the GND pin of the linear image sensor is connected to the GND pin of the low-dropout linear regulator. The VDD pin of the linear image sensor and the Vout pin of the low dropout linear regulator are connected to an electrolytic capacitor C3 and a non-polarized capacitor C4. The other ends of the electrolytic capacitor C3 and the non-polarized capacitor C4 are connected to the GND pin of the linear image sensor and the GND pin of the low dropout linear regulator. A non-polarized capacitor C5 is connected between the AO pin of the linear image sensor and the GND pin of the linear image sensor, and between the GND pin of the low-dropout linear regulator U2. A non-polarized capacitor C2 is connected between the GND pin of the linear array image sensor, the GND pin of the low-dropout linear regulator, and the CE pin of the low-dropout linear regulator. An electrolytic capacitor C1 is connected between the GND pin of the linear image sensor, the GND pin of the low-dropout linear regulator, and the Vin pin of the low-dropout linear regulator. Pin 5 of wire-to-wire connector one, pin 3 of wire-to-wire connector two, and pin 3 of wire-to-wire connector three are all connected to the positive terminal of Schottky diode D1. The negative terminal of Schottky diode D1 is connected to resistor R1, and the other end of resistor R1 is connected to the CE pin of the low dropout linear regulator.

2. The linear camera control circuit for a golf simulation system detector according to claim 1, characterized in that: Pin 7, pin 4, pin 2 of line-to-line connector 1, pin 5 of line-to-line connector 2, and pin 5 of line-to-line connector 3 are all connected to the GND pin of the linear image sensor and the GND pin of the low dropout linear regulator.

3. The linear camera control circuit for a golf simulation system detector according to claim 1, characterized in that: Pin 8 of the wire-to-wire connector 1, pin 9 of the wire-to-wire connector 1, pin 1 of the wire-to-wire connector 2, and pin 1 of the wire-to-wire connector 3 are all connected to the Vin pin of the low dropout linear regulator.

4. The linear camera control circuit for a golf simulation system detector according to claim 1, characterized in that: Pin 3 of the line-to-line connector one, pin 2 of the line-to-line connector two, and pin 4 of the line-to-line connector three are all connected to the AO pin of the linear image sensor.

5. The linear camera control circuit for a golf simulation system detector according to claim 1, characterized in that: Pin 5 of line-to-line connector one, pin 3 of line-to-line connector two, and pin 5 of line-to-line connector three are all connected to the CLK pin of the linear image sensor.

6. The linear camera control circuit for a golf simulation system detector according to claim 1, characterized in that: The 6th pin of the line-to-line connector one, the 4th pin of the line-to-line connector two, and the 2nd pin of the line-to-line connector three are all connected to the SI pin of the linear image sensor.

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