Hardware board card connecting device

Abstract

The utility model discloses a hardware board card connecting device. The device comprises a power management board card, a first embedded board card and a second embedded board card, an external power supply interface, a power supply board information feedback control module, a relay power supply switching module and a standby power supply interface are arranged in the power supply management board card. According to the utility model, through the integral design of the power management board card, the first embedded board card and the second embedded board card, only power is supplied to necessary low-power-consumption equipment and other high-power-consumption equipment stops working under the condition that no external power supply supplies power, so that the overall power consumption is reduced, and energy-saving management is realized.

Description

Technical Field

[0001] This utility model relates to the fields of artificial intelligence and communication technology, and specifically to a hardware board connection device. Background Technology

[0002] With the rapid development of artificial intelligence technology, embedded boards are widely used in real-time detection, processing, and analysis. Simultaneously, the number of supporting hardware devices is also increasing. These hardware devices need to connect to the embedded boards via cables, leading to a significant increase in overall device power consumption. Furthermore, the complex wiring not only affects the aesthetics of the device but also inconveniences users when identifying and locating the cables. Therefore, there is an urgent need to optimize the wiring between embedded boards and hardware devices to explore low-power and high-efficiency solutions, thereby improving overall system performance and user experience. Utility Model Content

[0003] To address the aforementioned shortcomings in the existing technology, this utility model provides a hardware board connection device.

[0004] To achieve the above-mentioned objectives, the technical solution adopted by this utility model is as follows:

[0005] A hardware board connection device includes a power management board, a first embedded board, and a second embedded board;

[0006] The power management board internally includes an external power interface, a power board information feedback control module, a relay power switching module, and a backup power interface. The input of the power board information feedback control module is connected to the external power interface, and the output of the power board information feedback control module is connected to the input of the relay power switching module. The output of the relay power switching module is simultaneously connected to the input of the first embedded board and the input of the second embedded board.

[0007] The input terminal of the first embedded board is also connected to an external power supply interface, and the output terminal of the first embedded board is connected to a high-power hardware device group.

[0008] The input terminals of the second embedded board are also connected to an external power supply interface and a backup power supply interface, and the output terminals of the second embedded board are connected to a low-power hardware device group.

[0009] Furthermore, it also includes a power conversion module, the input of which is connected to an external power interface and a backup power interface, the first output of which is connected to the input of the first embedded board, and the second output of which is connected to the input of the second embedded board.

[0010] The beneficial effects of this utility model are as follows:

[0011] (1) This utility model, through the design of the power management board, ensures that when the external power supply is interrupted, the backup power supply can be activated in time to supply power to the low-power critical equipment, thus achieving efficient power management;

[0012] (2) Through the integrated design of the power management board, the first embedded board and the second embedded board, this utility model can provide power to only the necessary low-power devices and stop the other high-power devices from working when there is no external power supply, thereby reducing the overall power consumption and realizing energy-saving management.

[0013] (3) This utility model uses a relay power switching module to determine the power input status and automatically switch the power supply, thereby improving the stability and reliability of the system under different power conditions;

[0014] (4) Through the design of the power management board, this utility model enables users to achieve intelligent switching of power supply without manual intervention, which simplifies the management and maintenance process of the equipment. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of a hardware board connection device.

[0016] Figure 2 This is a schematic diagram of the power board information feedback control module of this utility model.

[0017] Figure 3 This is a schematic diagram of the relay power switching module of this utility model;

[0018] Figure 4 This is a schematic diagram of the low-power hardware device group power conversion module of the power management board of this utility model;

[0019] Figure 5 This is a physical wiring diagram of the power management board of this utility model. Detailed Implementation

[0020] The specific embodiments of this utility model are described below to enable those skilled in the art to understand this utility model. However, it should be understood that this utility model is not limited to the scope of the specific embodiments. For those skilled in the art, as long as various changes are within the spirit and scope of this utility model as defined and determined by the appended claims, these changes are obvious. All inventions utilizing the concept of this utility model are protected.

[0021] like Figure 1 As shown, a hardware board connection device includes a power management board, a first embedded board, and a second embedded board.

[0022] In one optional embodiment of this utility model, the power management board is provided with an external power interface, a power board information feedback control module, a relay power switching module and a backup power interface; the input end of the power board information feedback control module is connected to the external power interface, the output end of the power board information feedback control module is connected to the input end of the relay power switching module, and the output end of the relay power switching module is simultaneously connected to the input end of the first embedded board and the input end of the second embedded board.

[0023] like Figure 2 As shown, the working principle of the power board information feedback control module is as follows: The external power supply voltage is 12-15V. To facilitate the acquisition and reading of the downstream ADC acquisition unit, the voltage is divided to within 3V by a 10K-40K resistor and then input to the downstream ADC acquisition unit. Combining the relationship between the lithium battery's charge level and voltage, this level can indicate whether the power is off and the battery's charge level. The ADC acquisition unit obtains this information and sends it to the second embedded board for parsing. The second embedded board determines whether the voltage information acquired by the ADC acquisition unit exceeds the battery voltage threshold, obtains the current working status of the power board and the battery charge level, and introduces a high-level / low-level control signal through J22_OX2-1. It uses a MOSFET to enhance the driving capability as the charging circuit control terminal, thereby controlling whether the charging circuit of the relay HF165FD-G / 12-HY1STF is turned on.

[0024] like Figure 3 As shown, the relay power switching module uses the HF165FD-G / 12-HY1STF model relay for control. This relay allows a maximum contact switching current of 40A and a continuous current of 30A, and can support a maximum power requirement of 400W under 15V operating conditions. The working principle of the relay power switching module is as follows: The 12V_charge signal input from the power board information feedback control module is used to control the power switching function. It is introduced through pin T37-1 on the board. When the operating voltage of T37-1 is greater than 9V and the release voltage is less than 0.6V, the voltage at pin T37-1 rises from low level to above 9V, the relay closes, and the power input terminal connects to the battery power supply terminal. This corresponds to the normal operating scenario, where the power supply provides power to the entire circuit and charges the battery. When the voltage at T37-1 drops from high level to below 0.6V, the relay releases, and the power input terminal disconnects from the battery power supply terminal. This corresponds to the emergency power outage scenario, where the battery powers some necessary components. A charging switch is located between the battery input terminal and the power input terminal to stabilize the voltage output at the emergency power supply terminal and reduce the impact of pulse current caused by power switching.

[0025] In an optional embodiment of this utility model, the input terminal of the first embedded board is also connected to an external power supply interface, and the output terminal of the first embedded board is connected to a high-power hardware device group.

[0026] In an optional embodiment of this utility model, the input terminal of the second embedded board is also connected to an external power interface and a backup power interface, and the output terminal of the second embedded board is connected to a low-power hardware device group.

[0027] This utility model also includes a power conversion module. The input end of the power conversion module is connected to an external power interface and a backup power interface. The first output end of the power conversion module is connected to the input end of the first embedded board, and the second output end of the power conversion module is connected to the input end of the second embedded board.

[0028] like Figure 4 As shown, the power conversion module works as follows: the main power supply is set to 14.6V to accommodate lithium battery charging voltage, while the power consumption requires 12V / 5V, necessitating voltage conversion. This design includes five power conversion paths, each suitable for different voltage conditions and application requirements. RK3588_12V: AI board power supply circuit. The voltage conversion chip used is SCT (Sinzhou Technology) SCT2433STER, with a normal operating input voltage of 12-40V and a maximum supply current of 3.5A. NORMAL_12V: Normal appliance power supply circuit, outputting effective voltage during power supply. The voltage conversion chip used is SCT (Sinzhou Technology) SCT2433STER, with a normal operating input voltage of 12-40V and a maximum supply current of 3.5A. Two paths are used, with an actual input of 13.2V-14.6V and an output level of 12V, supplying power to embedded board 1, a high-performance camera, and other high-power peripherals. SPC_12V: Power supply circuit for appliances when power is off, outputting effective voltage regardless of whether power is supplied. The voltage conversion chip uses SCT (Sinzhou Technology) SCT2433STER, with a normal operating input voltage of 12-40V and a maximum supply current of 3.5A. One channel is used, with an actual input voltage of 13.2V-14.6V and an output level of 12V, powering the gas sensor and other normally open peripherals. PI_5V: Power supply circuit for the main controller when power is off. The voltage conversion chip uses JOULWATT (JWH5046QFNZA_TR), with a normal operating input voltage of 12-17V and a maximum supply current of 6A. AD_5V: The voltage conversion chip uses SILERGY (SY81012VDC), with a normal operating input voltage of 12-16V and a maximum supply current of 12A. The actual input voltage is 13.2V-14.6V, and the output level is 5V, powering embedded board 2 and low-voltage peripherals such as speakers.

[0029] like Figure 5As shown, this utility model provides a wiring diagram of a power management board. The overall size of the power management board is 158mm*140mm, and the inner copper thickness is 2oz. Area 1 of the power management board is the external power interface, area 2 is the backup power interface, area 3 is the power conversion module, area 4 is the USB output interface, area 5 is the normal state output interface, and area 6 is the emergency state output interface.

[0030] Those skilled in the art will recognize that the embodiments described herein are intended to help the reader understand the principles of this invention, and should be understood that the scope of protection of this invention is not limited to such specific statements and embodiments. Those skilled in the art can make various other specific modifications and combinations based on these technical teachings disclosed in this invention without departing from the essence of this invention, and these modifications and combinations are still within the scope of protection of this invention.

Claims

1. A hardware board card connection apparatus, characterized by, The power management board card, the first embedded board card and the second embedded board card are included. The power management board card is internally provided with an external power supply interface, a power board information feedback control module, a relay power supply switching module and a backup power supply interface; the input end of the power board information feedback control module is connected with the external power supply interface; the output end of the power board information feedback control module is connected with the input end of the relay power supply switching module; the output end of the relay power supply switching module is simultaneously connected with the input end of the first embedded board card and the input end of the second embedded board card; The input end of the first embedded board card is also connected with the external power supply interface; the output end of the first embedded board card is connected with a high-power hardware device group. The input end of the second embedded board card is also connected with the external power supply interface and the backup power supply interface; the output end of the second embedded board card is connected with a low-power hardware device group.

2. The hardware board connection apparatus of claim 1, wherein, The power conversion module is also included; the input end of the power conversion module is connected with the external power supply interface and the backup power supply interface; the first output end of the power conversion module is connected with the input end of the first embedded board card; the second output end of the power conversion module is connected with the input end of the second embedded board card.

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