AI card computer with small size, low power consumption and high performance

Abstract

The utility model discloses an AI card computer with small volume, low power consumption and high performance. The AI card computer has a hardware structure with the length of 85 mm and the width of 56 mm, and is small in design, small in size, convenient to carry and deploy and suitable for various scenes with limited space. According to the utility model, the RK3588S is used as a main control chip, so that strong computing power, low power consumption and high AI computing power are provided, the high-performance requirement of a complex artificial intelligence algorithm is met, the stability and reliability of equipment are ensured, the failure rate is reduced, the use experience of a user is improved, and the wide application and development of the artificial intelligence technology in various fields are promoted.

Description

Technical Field

[0001] The utility model relates to the technical field of card computers, in particular to an AI card computer with small volume, low power consumption and high performance. Background Art

[0002] With the rapid development of artificial intelligence (AI) technology, the demand for efficient AI computing on edge devices is growing. However, traditional AI circuit boards are large in size and volume, and have high power consumption, making them inconvenient to carry or deploy in space-constrained environments. Therefore, a small-volume, high-performance AI card computer is being developed. Utility Model Content

[0003] In view of the deficiencies in the prior art, the purpose of the utility model is to provide a small-volume, low-power, high-performance AI card computer, which is made into a small-sized card specification structure with a small size, low power consumption and high AI computing capability.

[0004] In order to achieve the above purpose, the technical solution adopted by the utility model is: a small-volume, low-power, high-performance AI card computer, including a PCB board,

[0005] The left side of the front of the PCB board is equipped with a USB port and an RJ45 network port from top to bottom.

[0006] The right side of the front of the PCB board has the sound pickup interface, USB3.0OTG interface supporting DP protocol, MINIHDMI interface and TYPE C power supply interface from top to bottom.

[0007] The main control chip model RK3588S is installed in the middle of the front of the PCB board. The main control chip is adjacent to the MINI HDMI interface. A functional chip is respectively arranged adjacent to the upper side, lower side and left side of the main control chip.

[0008] The upper side of the front of the PCB board is equipped with an infrared interface, a MIPI-CSI interface, a MIPI-DSI serial interface, and an audio interface from left to right.

[0009] A 40-pin header is provided on the lower side of the front of the PCB board. The 40-pin header is adjacent to the RJ45 network interface.

[0010] A MINIPCIE interface is set in the middle of the back of the PCB board.

[0011] There are two MIPI-CSI interfaces on the left side of the back of the PCB board.

[0012] The upper side of the back of the PCB board is provided with a MIPI-DSI interface and a card socket. The upper layer of the card socket is provided with a TF card insertion interface, and the lower layer is provided with a MICRO SIM card insertion interface.

[0013] Two groups of USB interfaces and one group of RJ45 network interfaces are arranged on the left side of the front side of the PCB board. The RJ45 network interface is adjacent to the lower side of the PCB board. The USB interface includes a double-layer USB socket with a double-layer structure design. Each double-layer USB socket is provided with a USB2.0 interface and a USB3.0 interface, or the double-layer USB socket is provided with two USB3.0 interfaces.

[0014] The AI ​​card computer includes a PCB board with dimensions of 85 mm long and 56 mm wide. The PCB board is installed with the main control chip, the function chip, the RJ45 network interface, the double-layer USB socket, the TYPE C power supply interface, the MINI HDMI interface, the USB3.0 OTG interface, the pickup interface, the infrared interface, the MIPI-CSI interface, the audio interface, the 40Pin pin header interface, the MINIPCIE interface, the MIPI-DSI interface, the card holder and resistors and capacitors in 0201 package.

[0015] The PCB board is provided with a power chip PMIC, an ideal diode circuit formed by connecting a bipolar transistor U1 of model BCM857BS-7-F and a MOS tube Q9,

[0016] The power chip PMIC is provided with a power-on detection pin, and the main control chip is provided with a power pin VCC5V0_SYS.

[0017] The TYPE C power supply interface is provided with a power supply pin DCIN_5V0,

[0018] The power supply pin DCIN_5V0 is electrically connected to the power-on detection pin;

[0019] Pin 3 of MOS tube Q9 is electrically connected to power supply pin DCIN_5V0 and pin 1 of bipolar transistor U1.

[0020] Pin 2 of MOS tube Q9 is electrically connected to power pin VCC5V0_SYS and pin 4 of bipolar transistor U1.

[0021] Pin 1 of the MOS tube Q9 and pin 3 of the bipolar transistor U1 are electrically connected to the first end of the resistor R6 respectively, and the second end of the resistor R6 is grounded.

[0022] Pin 2 , pin 5 and pin 6 of the bipolar transistor U1 are electrically connected to a first end of a resistor R5 , respectively, and a second end of the resistor R5 is grounded.

[0023] The PCB board is provided with a bidirectional voltage regulator diode D1 and a power indicator light circuit. The first end of the bidirectional voltage regulator diode D1 is electrically connected to the pin 3 of the MOS tube Q9 and the two ends are grounded.

[0024] The power indicator light circuit includes a resistor R2 and an indicator light D33, the power pin VCC5V0_SYS is electrically connected to a first end of the resistor R2, a second end of the resistor R2 is electrically connected to a first end of the indicator light D33, and a second end of the indicator light D33 is grounded.

[0025] A plurality of capacitors are connected in parallel between the power pin VCC5V0_SYS and the ground terminal.

[0026] After adopting the above structure, the advantages of the present invention compared with the prior art are: the hardware structure of the AI ​​card computer of the present invention is 85mm long and 56mm wide, with a compact design and a very small device size, which is easy to carry and deploy and suitable for various scenes with limited space; the present invention uses RK3588S as the main control chip, which provides powerful computing power, low power consumption, and high AI computing power, meeting the high-performance requirements of complex artificial intelligence algorithms, while ensuring equipment stability and reliability, reducing failure rates, improving user experience, and promoting the widespread application and development of artificial intelligence technology in various fields. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 It is a circuit block diagram of the utility model.

[0028] Figure 2 This is a schematic diagram of the dimensions and structure of the AI ​​card computer of the utility model.

[0029] Figure 3 The utility model is a work flow chart of the AI ​​card computer.

[0030] Figure 4 It is a circuit diagram of a power supply circuit of a TYPEC interface of the utility model.

[0031] Figure 5 It is a circuit diagram of the RX interface circuit of the MIPI CSI interface of the utility model. DETAILED DESCRIPTION

[0032] A small-sized, low-power, high-performance AI card computer. Figures 1 to 5 As shown, the AI ​​card computer includes a PCB board with a size of 85mm long x 56mm wide. Figure 2As shown, the PCB board is installed with the main control chip, function chip, RJ45 network interface, double-layer USB socket, TYPE C power supply interface, MINI HDMI interface, USB3.0 OTG interface, pickup interface, infrared interface, MIPI-CSI interface, audio interface, 40Pin pin header interface, MINIPCIE interface, MIPI-DSI interface, card holder and resistors and capacitors in 0201 package. The area occupied by resistors and capacitors is reduced by 70%, which makes more space for the board to place the main control chip, function chip, various interfaces and other components, and puts 932 devices needed for the AI ​​card computer in the 85x56mm long and wide board frame.

[0033] The AI ​​card computer includes a PCB board, and a USB interface and an RJ45 network interface are arranged on the left side of the front side of the PCB board from top to bottom. Two groups of USB interfaces and one group of RJ45 network interfaces are arranged on the left side of the front side of the PCB board, and the RJ45 network interface is adjacent to the lower side of the PCB board. The USB interface includes a double-layer USB socket with a double-layer structure design, and each double-layer USB socket is provided with a USB2.0 interface and a USB3.0 interface or the double-layer USB socket is provided with two USB3.0 interfaces.

[0034] The right side of the front of the PCB board has the sound pickup interface, USB3.0OTG interface supporting DP protocol, MINIHDMI interface and TYPE C power supply interface from top to bottom.

[0035] The main control chip model RK3588S is installed in the middle of the front of the PCB board. The main control chip is adjacent to the MINI HDMI interface. A functional chip is respectively arranged adjacent to the upper side, lower side and left side of the main control chip.

[0036] The upper side of the front of the PCB board is provided with an infrared interface, a MIPI-CSI interface, a MIPI-DSI serial interface and an audio interface from left to right. The AI ​​card computer has three MIPI CSI interfaces and can connect three cameras at the same time. If the commonly used 24-pin FPC socket with a pin spacing of 0.5mm is used, the PCB board will not be able to place three FPC sockets at the same time. The utility model redefines the interface line sequence of the MIPI CSI interface connecting the camera, and adopts a 30-pin BTB socket with a smaller package size and a pin spacing of 0.4mm. The length and width of the socket are 8.5x2.2mm. The camera interface line sequence of the MIPI CSI interface of the utility model is defined as follows Figure 5As shown in the figure, MIPI_DPHY0_RX_D[0:3]P / N and MIPI_DPHY0_RX_CLKP are the camera MIPI CSI signal lines responsible for transmitting image data; I2C1_SCL_M2 and I2C1_SDA_M2 are I2C signals used to initialize and configure the camera SENSOR; CAM0_PWDN and CAM0_RSTn are SENSOR power control and reset signals.

[0037] A 40-pin header is provided on the lower side of the front of the PCB board. The 40-pin header is adjacent to the RJ45 network interface.

[0038] A MINIPCIE interface is set in the middle of the back of the PCB board.

[0039] There are two MIPI-CSI interfaces on the left side of the back of the PCB board.

[0040] The upper side of the back of the PCB board is equipped with a MIPI-DSI interface and a card holder. The upper layer of the card holder is equipped with a TF card interface and the lower layer is equipped with a MICRO SIM card interface. In card computers, TF cards and SMI cards are usually separated into two card holders, which is not conducive to the miniaturization of card computers. The AI ​​card computer uses a TF card and SMI two-in-one card holder, which saves space for a card holder. The upper layer is for TF cards and the lower layer is for MICRO SIM cards.

[0041] The hardware structure of the AI ​​card computer of this utility model is 85mm long and 56mm wide, with a compact design and a very small device size, which is easy to carry and deploy and suitable for various scenarios with limited space. This utility model uses RK3588S as the main control chip, providing powerful computing power to meet the high-performance requirements of complex artificial intelligence algorithms, while ensuring equipment stability and reliability, reducing failure rates, improving user experience, and promoting the widespread application and development of artificial intelligence technology in various fields.

[0042] Compared with the traditional DC power supply interface, the utility model adopts TYPE C as the power supply interface. The power supply circuit includes a TYPE C interface, an ESD protection circuit, an ideal diode circuit and a power indicator light circuit connected in sequence. Figure 4 As shown, it has the advantages of more beautiful appearance, convenient power supply, smaller size, etc., which is beneficial to reducing the space occupied by the device.

[0043] The PCB board is provided with a power chip PMIC, an ideal diode circuit formed by connecting a bipolar transistor U1 of model BCM857BS-7-F and a MOS tube Q9, the power chip PMIC is provided with a power-on detection pin, the main control chip is provided with a power pin VCC5V0_SYS, the TYPE C power supply interface is provided with a power pin DCIN_5V0, and the power pin DCIN_5V0 is electrically connected to the power-on detection pin; pin 3 of the MOS tube Q9 is electrically connected to the power pin DCIN_5V0 and pin 1 of the bipolar transistor U1, respectively, pin 2 of the MOS tube Q9 is electrically connected to the power pin VCC5V0_SYS and pin 4 of the bipolar transistor U1, pin 1 of the MOS tube Q9 and pin 3 of the bipolar transistor U1 are electrically connected to the first end of the resistor R6, respectively, and the second end of the resistor R6 is grounded, and pin 2, pin 5 and pin 6 of the bipolar transistor U1 are electrically connected to the first end of the resistor R5, respectively, and the second end of the resistor R5 is grounded.

[0044] Among them, the ideal diode circuit composed of MOS tube Q9 and bipolar transistor U1 is used to isolate the power supply pin DCIN_5V0 and the power supply pin VCC5V0_SYS to prevent the current of the power supply pin VCC5V0_SYS from flowing back to the power supply pin DCIN_5V0. Because the power supply pin DCIN_5V0 is connected to the power-on detection pin of the power chip PMIC, it avoids rapid power-off when the PCB board is in sleep mode and the AI ​​card computer cannot start normally when powered on. The working principle of the ideal diode is that when the voltage of the power supply pin DCIN_5V0 is greater than the power supply pin VCC5V0_SYS, the MOS tube Q9 is turned on, and when the voltage of the power supply pin DCIN_5V0 is less than the power supply pin VCC5V0_SYS, the MOS tube Q9 is turned off. The role of the bipolar transistor U1 is a voltage comparator, which compares the voltage of the power supply pin DCIN_5V0 with the power supply pin VCC5V0_SYS to control the on and off of the MOS tube Q9. Since the voltage drop of the MOS tube Q9 is very small when it is turned on, only tens of millivolts, the power supply pin VCC5V0_SYS is approximately equal to DCIN_5V0. The utility model adopts the circuit design of the ideal diode, and there is no need to provide additional power to the comparator MOS tube Q9, so fewer devices are needed, the cost of parts is lower, and the use of devices can be reduced, and more space for placing electronic devices on the PCB board can be saved.

[0045] The PCB board is provided with a bidirectional voltage regulator diode D1 and a power indicator light circuit. The first end of the bidirectional voltage regulator diode D1 is electrically connected to the pin 3 of the MOS tube Q9, and the two ends are grounded. The power indicator light circuit includes a resistor R2 and an indicator light D33. The power pin VCC5V0_SYS is electrically connected to the first end of the resistor R2, the second end of the resistor R2 is electrically connected to the first end of the indicator light D33, and the second end of the indicator light D33 is grounded. Multiple capacitors are connected in parallel between the power pin VCC5V0_SYS and the ground terminal, including capacitors C10, C11, C7 and C12, to provide a more stable working voltage.

[0046] The AI ​​card computer of this utility model has a more compact hardware size, is easy to carry and deploy, and is suitable for various scenarios with limited space. For example, it can be deployed on a balancing car of Wheel Fun for ROS mapping, navigation and obstacle avoidance, following and other functions; it can be deployed on a quadcopter with a camera to run VINS (visual inertial navigation system) and ego (an algorithm for optimizing flight trajectories); it can also be deployed on an attendance punching machine to run algorithms such as face recognition.

Claims

1. A small-volume, low-power, high-performance AI card computer, including a PCB board, characterized in that: The left side of the front of the PCB board is equipped with a USB port and an RJ45 network port from top to bottom. The right side of the front of the PCB board has the sound pickup interface, USB3.0OTG interface supporting DP protocol, MINI HDMI interface and TYPE C power supply interface from top to bottom. The main control chip model RK3588S is installed in the middle of the front of the PCB board. The main control chip is adjacent to the MINI HDMI interface. A functional chip is respectively arranged adjacent to the upper side, lower side and left side of the main control chip. The upper side of the front of the PCB board is equipped with an infrared interface, a MIPI-CSI interface, a MIPI-DSI serial interface, and an audio interface from left to right. A 40-pin header is set on the lower side of the front of the PCB board. The 40-pin header is set adjacent to the RJ45 network interface. A MINIPCIE interface is set in the middle of the back of the PCB board. There are two MIPI-CSI interfaces on the left side of the back of the PCB board. The upper side of the back of the PCB board is provided with a MIPI-DSI interface and a card socket. The upper layer of the card socket is provided with a TF card insertion interface, and the lower layer is provided with a MICRO SIM card insertion interface.

2. The small-volume, low-power, high-performance AI card computer according to claim 1, characterized in that: Two groups of USB interfaces and one group of RJ45 network interfaces are arranged on the left side of the front side of the PCB board. The RJ45 network interface is adjacent to the lower side of the PCB board. The USB interface includes a double-layer USB socket with a double-layer structure design. Each double-layer USB socket is provided with a USB2.0 interface and a USB3.0 interface, or the double-layer USB socket is provided with two USB3.0 interfaces.

3. The small-volume, low-power, high-performance AI card computer according to claim 2, characterized in that: The AI ​​card computer includes a PCB board with dimensions of 85 mm long and 56 mm wide. The PCB board is fixed with the main control chip, the function chip, the RJ45 network interface, the double-layer USB socket, the TYPE C power supply interface, the MINI HDMI interface, the USB3.0OTG interface, the pickup interface, the infrared interface, the MIPI-CSI interface, the audio interface, the 40Pin pin header interface, the MINIPCIE interface, the MIPI-DSI interface, the card holder and resistors and capacitors in 0201 package.

4. The small-volume, low-power, high-performance AI card computer according to claim 3, characterized in that: The PCB board is provided with a power chip PMIC, an ideal diode circuit formed by connecting a bipolar transistor U1 of model BCM857BS-7-F and a MOS tube Q9, The power chip PMIC is provided with a power-on detection pin, and the main control chip is provided with a power pin VCC5V0_SYS. The TYPE C power supply interface is provided with a power supply pin DCIN_5V0, The power supply pin DCIN_5V0 is electrically connected to the power-on detection pin of the power chip PMIC; Pin 3 of MOS tube Q9 is electrically connected to power supply pin DCIN_5V0 and pin 1 of bipolar transistor U1. Pin 2 of MOS tube Q9 is electrically connected to power pin VCC5V0_SYS and pin 4 of bipolar transistor U1. Pin 1 of the MOS tube Q9 and pin 3 of the bipolar transistor U1 are electrically connected to the first end of the resistor R6 respectively, and the second end of the resistor R6 is grounded. Pin 2 , pin 5 and pin 6 of the bipolar transistor U1 are electrically connected to a first end of a resistor R5 , respectively, and a second end of the resistor R5 is grounded.

5. The small-volume, low-power, high-performance AI card computer according to claim 4, characterized in that: The PCB board is provided with a bidirectional voltage regulator diode D1 and a power indicator light circuit. The first end of the bidirectional voltage regulator diode D1 is electrically connected to the pin 3 of the MOS tube Q9 and the two ends are grounded. The power indicator light circuit includes a resistor R2 and an indicator light D33, the power pin VCC5V0_SYS is electrically connected to a first end of the resistor R2, a second end of the resistor R2 is electrically connected to a first end of the indicator light D33, and a second end of the indicator light D33 is grounded.

6. The small-volume, low-power, high-performance AI card computer according to claim 5, characterized in that: A plurality of capacitors are connected in parallel between the power pin VCC5V0_SYS and the ground terminal.

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