CN216387781U - Gateway control system of open source hardware single board computer - Google Patents

Abstract

The utility model discloses an open source hardware single board computer gateway control system which comprises a controller, a USB main interface, an RJ45 interface, a USB interface, a WIFI module, a Bluetooth module, a memory, a first extension pin, a second extension pin, a first Grove module, a second Grove module, an SD card slot, a clock module, an indication module and a key module, wherein the USB main interface, the RJ45 interface, the USB interface, the WIFI module, the Bluetooth module, the memory, the first extension pin, the second extension pin, the first Grove module, the second Grove module, the SD card slot, the clock module, the indication module and the key module are electrically connected with the controller, the controller adopts OSD3358-512-BSM, and the key module is connected with a control pin of a power management chip in the controller to realize the on-off function. The utility model is completely compatible with Beaglebone Black, Beaglebone Black wire, Beaglebone Green, Beaglebone Green wire, and can use the fittings of the former without seams.

Description

Gateway control system of open source hardware single board computer

Technical Field

The utility model relates to a gateway, in particular to a gateway control system of an open source hardware single board computer.

Background

Beaglebone is one of three open source platforms which are parallel to Arduino and raspberry pie, Beaglebone Black Wireless, Beaglebone Green, Beaglebone Green Wireless and the like are under flags, and a plurality of products are respectively long, but not complete in function.

The problems of the prior art are as follows:

1. the product networking means is single, for example, a board card supporting the Ethernet does not support the wireless, and vice versa, and cannot be used as a gateway.

2. The power supply only supports 5V and does not support the 12V or 24V power supply input commonly used in industrial control.

3. The real-time clock is not supported to run after power failure, and time is lost after power failure.

SUMMERY OF THE UTILITY MODEL

The present invention is directed to a gateway control system of an open-source hardware single board computer, so as to solve the problems in the background art.

In order to achieve the purpose, the utility model provides the following technical scheme:

a gateway control system of an open-source hardware single board computer comprises a controller, a USB main interface, an RJ45 interface, a USB interface, a WIFI module, a Bluetooth module, a memory, a first extension pin, a second extension pin, a first Grove module, a second Grove module, an SD card slot, a clock module, an indication module and a key module, wherein the USB main interface, the RJ45 interface, the USB interface, the WIFI module, the Bluetooth module, the memory, the first extension pin, the second extension pin, the first Grove module, the second Grove module, the SD card slot, the clock module, the indication module and the key module are electrically connected with the controller, the controller adopts OSD3358-512-BSM, and the key module is connected with a control pin of a power management chip in the controller to achieve the on-off function.

As a further scheme of the utility model, the key module also comprises a reset key which is connected with a reset signal of the controller.

As a further aspect of the present invention, the first Grove module is configured to extend a UART signal on the controller.

As a further aspect of the utility model, the second Grove module is used to expand the I2C signal on the controller.

As a further aspect of the utility model, the memory is comprised of kingston 4GB eMMC.

As a further scheme of the utility model, the SD card slot is connected with the processor through an SDIO bus.

Compared with the prior art, the utility model has the beneficial effects that:

1. the connector is completely compatible with Beaglebone Black, Beaglebone Black Wireless, Beaglebone Green, and Beaglebone Green Wireless, and the accessories of the connector can be used seamlessly.

2. The method of wireless coexistence of Ethernet and wifi is adopted, the problem of single networking means is solved, and the gateway function is realized.

3. An external real-time clock module is added to support the clock to still use the button battery to supply power after the power failure of the main power supply, and the running time is continued.

Drawings

Fig. 1 is a schematic circuit block diagram of a gateway control system of an open-source hardware single board computer.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1, in an embodiment of the present invention, an open-source hardware single board computer gateway control system includes a controller, and a USB host interface, an RJ45 interface, a USB interface, a WIFI module, a bluetooth module, a memory, a first extension pin, a second extension pin, a first Grove module, a second Grove module, an SD card slot, a clock module, an indication module, and a key module electrically connected to the controller, where the controller uses OSD3358-512-BSM, and the key module is connected to a control pin of a power management chip in the controller, so as to implement a power on/off function.

The key module comprises a reset key, a power supply key and a starting mode selection key, wherein the power supply key is connected with a control pin of the power supply management chip to realize the power on and off function, and in the starting state, the power supply key is pressed down, and the software runs a power off program; in the state of shutdown, the power supply is wakened up by pressing to realize the function of startup;

the starting mode selection key is powered on, and meanwhile, when the key is pressed down, the boot program can be started from a Micro SD card in the SD card, and when the boot program is not pressed, the boot program is started from the memory.

The reset key is connected with a reset signal of the controller, and the system is pressed to reset.

The USB interface is a main power supply interface, supports 9V-24V power supply, and recommends 12V power supply.

The RJ45 interface is connected with a hundred mega Ethernet, the Ethernet adopts a LAN9512 chip of a microchip science and technology company as a transceiver, the interface adopts a USB bus to communicate with a controller, and a hardware interface adopts an RJ45 terminal, so that hundred mega self-adaptive Ethernet communication can be realized.

The USB main ports are two, except that a LAN9512 chip of a microchip science and technology company expands a hundred-mega Ethernet, the LAN9512 chip also expands 2 paths of USB main ports, and two paths of USB are connected to a double-A type USB interface connector, so that the 2 paths of USB main ports are realized.

The first extension pin and the second extension pin are arranged in a row of 2x23 pins and are used for extending signals which are not used temporarily by the controller and some important signals and connecting other accessories so as to meet the equipment requirements of different customers.

The first Grove module is used for expanding UART signals on the controller, and the second Grove module is used for expanding I2C signals on the controller.

WIFI module and bluetooth module use texas instrument company's module WL1835MOD, communicate with the controller through SDIO and UART, realize wireless and bluetooth function.

The indicating module comprises a Bluetooth enabling indicating lamp and a wireless enabling indicating lamp, the Bluetooth enabling indicating lamp is controlled by a common input and output signal of the controller, and when the Bluetooth is enabled, the lamp is on and used for indicating that the Bluetooth is enabled; the wireless enabling indicator light is controlled by a common input and output signal of the controller, and when the wireless is enabled, the light is turned on and used for indicating that the wireless is enabled.

The controller adopts an OSD3358 main control chip and mainly comprises 3 parts, namely the controller, a power management chip and a memory. The controller AM3358 is an ARM-based controller; the power management chip TPS65217C is a power management chip integrated with multiple power supplies. In the project, a 12V or 24V power adapter which is universal in industry is used for supplying power, a 12V or 24V power voltage is converted into 5V through a direct current-to-direct current circuit, then the 5V power voltage is supplied to a power management chip, and then a plurality of paths of power supplies with different voltages are converted to supply power to different modules of a system; and the memory is used as the memory for system operation.

The SD card slot is connected with the controller through an SDIO bus, can be connected with a Micro SD card and used for storing data or updating a system.

The clock module uses an I2C bus, extends a high-precision real-time clock circuit, provides a precise real-time clock, supports button battery power supply, and is used for keeping the clock running continuously after the main power supply is powered off.

The memory is primarily formed of 4GB eMMC from Kingston, and is primarily used to store system firmware, as well as user data, which is communicated to the controller via SDIO signals.

English noun explanation:

beaglebone: a name of an open source organization.

Arduino: a general name of an open source electronic product.

Beaglebone Black, Beaglebone Black Wireless, Beaglebone Green Wireless several product names under the Beaglebone organization.

USB: the abbreviation universal serial bus (usb) is a standard for external buses.

Grove: the generic name of a product module of silicon technology corporation.

I2C: a serial communication bus.

UART: a serial communication bus.

eMMC: a kind of memory.

SDIO: a serial communication bus.

ARM: the name of a company is also the architecture name of the controller developed by the company.

Micro SD: a compact flash memory card.

It will be evident to those skilled in the art that the utility model is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the utility model being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.

Claims (6)

1. The open-source hardware single-board computer gateway control system is characterized by comprising a controller, a USB main interface, an RJ45 interface, a USB interface, a WIFI module, a Bluetooth module, a memory, a first extension pin, a second extension pin, a first Grove module, a second Grove module, an SD card slot, a clock module, an indication module and a key module, wherein the USB main interface, the RJ45 interface, the USB interface, the WIFI module, the Bluetooth module, the memory, the first extension pin, the second extension pin, the first Grove module, the second Grove module, the SD card slot, the clock module, the indication module and the key module are electrically connected with the controller, the controller adopts OSD3358-512-BSM, and the key module is connected with a control pin of a power management chip in the controller to realize the on-off function.

2. The open source hardware board computer gateway control system of claim 1, wherein the button module further comprises a reset button, and the reset button is connected to a reset signal of the controller.

3. The open source hardware single board computer gateway control system of claim 1, wherein the first Grove module is configured to extend UART signals on the controller.

4. The open source hardware single board computer gateway control system of claim 1, wherein the second Grove module is configured to expand an I2C signal on a controller.

5. The open source hardware single board computer gateway control system of claim 1, wherein the memory is comprised of kingston 4GB eMMC.

6. The open source hardware single board computer gateway control system of claim 1, wherein the SD card slot is connected to the processor through an SDIO bus.

Images