CN220419824U

CN220419824U - Main control unit of self-service terminal

Info

Publication number: CN220419824U
Application number: CN202320826547.1U
Authority: CN
Inventors: 蒋鹏
Original assignee: Xi'an Yuanjie Technology Co ltd
Current assignee: Xi'an Yuanjie Technology Co ltd
Priority date: 2023-04-13
Filing date: 2023-04-13
Publication date: 2024-01-30
Anticipated expiration: 2033-04-13

Abstract

The utility model relates to a self-service terminal main control unit. The main control unit comprises: RK3399 main control board, USB expansion module, ethernet interface module, audio interface module, display interface module, encryption module, memory module, power module; wherein, RK3399 master control board, control, coordinate the connection and task among every module; the USB expansion module is connected with the RK3399 main control board; the Ethernet interface module is connected with the RK3399 main control board; the audio interface module is connected with the RK3399 main control board; the display interface module is connected with the RK3399 main control board; the encryption module is connected with the RK3399 main control board; the storage module is connected with the RK3399 main control board through a bus; and the power supply module is connected with the RK3399 main control board through a power supply interface. The main control unit provides a large number of multi-type interfaces so as to be capable of connecting all devices required for realizing self-service.

Description

Main control unit of self-service terminal

Technical Field

The utility model relates to the technical field of financial equipment, in particular to a self-service terminal main control unit.

Background

Self-service terminals, such as power self-service terminals, power self-service payment terminals, etc., are used by users and business hall workers. The user can transact business by self-service through the terminal, such as card swiping, code scanning or cash paying, inquire about electricity consumption and electricity charge conditions, transact new electricity charge, rename and pass the information such as electricity charge account, address and the like. The business hall staff can assist the clients to transact business through the terminals. In order to achieve these functions, the self-service terminal needs to be equipped with a printer, a thermal printer, a high-speed shooting instrument, a banknote bag, a code scanner, a keyboard, a screen and other devices, i.e. the self-service terminal main control unit is required to provide an interface capable of being connected with a large number of devices.

Disclosure of Invention

In view of the above, the main purpose of the present utility model is to provide a self-service terminal main control unit, so as to provide a large number of interfaces of multiple types, and further connect various devices required for realizing self-service.

To achieve the above object, the present application provides a self-service terminal main control unit, including: RK3399 main control board, USB expansion module, ethernet interface module, audio interface module, display interface module, encryption module, memory module, power module; wherein,

the RK3399 main control board is used for controlling and coordinating the connection and tasks among the modules;

the USB expansion module is connected with the RK3399 main control board through a USB HOST 2.0 interface; the Ethernet interface module is connected with the RK3399 main control board through an RGMII interface; the audio interface module is connected with the RK3399 main control board through an I2S interface; the display interface module is connected with the RK3399 main control board through MIPI, EDP, DPI and/or HDMI interface lines;

the encryption module is connected with the RK3399 main control board through an SPI interface; the storage module is connected with the RK3399 main control board through a bus; the power module is connected with the RK3399 main control board through a power interface and provides direct current power supply.

In one possible implementation, the USB extension module includes: at least one USB2.0HUB main control chip, at least one UART-converting chip and at least one COM-converting chip; wherein,

the HOST port of the USB2.0HUB main control chip is connected with the USB HOST 2.0 interface; USB2.0HUB the USB device port of the main control chip, at least one of which is connected with a USB interface connector, and at least one of which is connected with a USB interface of the UART transfer chip;

at least one UART interface of the UART transfer chip is connected with the UART interface of the UART transfer chip;

and at least one COM interface of the COM chip is connected with a COM interface connector.

In another possible implementation, the method further includes: a WIFI module and a 4G module; wherein,

the WIFI module is connected with a USB equipment port of the USB2.0HUB main control chip; the 4G module is connected with a UART interface of the UART conversion chip.

In another possible implementation, the method further includes: and the standby Ethernet interface module is connected with a UART interface of the UART conversion chip.

In another possible implementation, the display interface module includes: LVDS interface connectors, EDP interface connectors, VGA interface connectors, and/or HDMI interface connectors; wherein,

the RK3399 main control board is connected with an MIPI interface of an LVDS chip through an MIPI interface circuit, and the LVDS interface of the LVDS chip is connected with the LVDS interface connector; and/or the number of the groups of groups,

the RK3399 main control board is connected with the EDP interface connector through an EDP interface line; and/or the number of the groups of groups,

the RK3399 main control board is connected with the DPI interface of the VGA chip through a DPI interface line, and the VGA interface of the VGA chip is connected with the VGA interface connector; and/or the number of the groups of groups,

the RK3399 main control board is connected with a receiving port of the multifunctional conversion chip through an HDMI interface circuit; and one of the transmitting interfaces of the multifunctional conversion chip is connected with the HDMI interface connector, and the other transmitting interface is connected with the LVDS interface connector to serve as a standby LVDS interface.

Drawings

Fig. 1 is a schematic structural diagram of a main control unit of a self-service terminal according to an embodiment of the present application;

FIG. 2 is a circuit block diagram of a USB expansion module according to an embodiment of the present application;

fig. 3 is a circuit configuration diagram of a display interface module according to an embodiment of the present application.

Detailed Description

In order to make the objects and advantages of the embodiments of the present application more apparent, the apparatus of the embodiments of the present application will be described with reference to the accompanying drawings.

In the description of embodiments of the present application, words such as "exemplary," "such as" or "for example," are used to indicate by way of example, illustration, or description. Any embodiment or design described herein as "exemplary," "such as" or "for example" is not necessarily to be construed as preferred or advantageous over other embodiments or designs. Rather, the use of words such as "exemplary," "such as" or "for example," etc., is intended to present related concepts in a concrete fashion.

In the description of the embodiments of the present application, the term "and/or" is merely an association relationship describing an association object, and indicates that three relationships may exist, for example, a and/or B may indicate: a alone, B alone, and both A and B. In addition, unless otherwise indicated, the term "plurality" means two or more. For example, the plurality of devices means two or more devices, and the plurality of screen terminals means two or more screen terminals.

Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as ordering, indicating or implying relative importance or implicitly indicating the indicated technical feature. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more such feature. The terms "comprising," "including," "having," and variations thereof mean "including but not limited to," unless expressly specified otherwise.

The self-service terminal main control unit provides a large number of interfaces with multiple types so as to be capable of connecting all devices required for realizing self-service.

Fig. 1 is a schematic structural diagram of a self-service terminal main control unit provided in an embodiment of the present application. As shown in fig. 1, the self-service terminal main control unit includes:

RK3399 main control board, USB expansion module, ethernet interface module, audio interface module, display interface module, encryption module, memory module, power module; wherein,

Specifically, the ethernet interface module includes: physical Layer (PHY) and ethernet interface connectors. Here, the PHY is implemented by a YT8521 chip, where the YT8521 chip is a single-port gigabit ethernet PHY chip, and supports an RGMII interface; the ethernet interface connector is implemented with an RJ45 connector.

The audio interface module is realized by an AD52068 chip, an earphone socket and a Speaker port.

The encryption module is realized by adopting an embedded encryption authentication module (ESAM, embedded Secure Access Module), so that interactive data can be well protected.

The storage module comprises an EMMC and an LPDDR4 which are connected through an EMMC bus, a DDR bus and an RK3399 main control board respectively.

Main circuit boards such as a CPU of the RK3399 main control board adopt a card inserting structure design, so that the card inserting structure is convenient to replace, upgrade and maintain.

And the power supply module is used for realizing DC12V-DC24V/5A wide-voltage power supply and conveniently adapting to the requirements of various loads.

In the embodiment shown in fig. 2, the USB extension module includes: two USB2.0HUB master chips FE1.1S and FE2.1S; the two UART conversion chips can be FT232RL or GP232RL serial port chips; four COM-transferring chips SP3232EENA; wherein,

the HOST port of the USB2.0HUB main control chip is connected with the USB HOST 2.0 interface; USB2.0HUB USB device ports of the main control chip, 8 USB interface connectors, 2 USB interfaces connected with the UART transfer chip;

the UART interfaces of the UART transfer chip are connected with the UART interfaces of the COM transfer chip;

and 8 COM interfaces of the 4 COM conversion chips are all connected with a COM interface connector.

The USB interface connector can be connected with a three-in-one card reader, a binocular camera, a laser printer, a receipt printer, a high-speed camera, a fingerprint identifier or the like.

The COM interface connector can be connected with a password keyboard, a deposit machine core, a two-dimensional code scanner, a banknote bag banknote plate and other devices.

The existing self-service terminal only has 2 RS-232 serial ports, not considering all application environments, and the COM ports are expanded to 8 in the embodiment, so that different serial port RS-232 peripheral equipment can be conveniently docked.

In some embodiments, further comprising: a WIFI module and a 4G module; wherein,

Here, the 4G module adopts a PCI card architecture. The module of various brands in the convenient adaptation market is convenient for maintenance, upgrading and changing.

The WIFI module and the 4G module are provided with independent physical switches. In some occasions where a WIFI or 4G signal is not needed, the circuit link of the WIFI module and/or the 4G module may be disconnected through a physical switch.

In some embodiments, further comprising: and the standby Ethernet interface module is connected with a UART interface of the UART conversion chip. The standby Ethernet interface module is realized by an XR22804 chip and an RJ45 connector.

The standby Ethernet interface module is independent of the Ethernet interface module, and can communicate when the network line of the Ethernet interface module fails to cause communication interruption.

In the embodiment shown in fig. 3, the display interface module includes: LVDS interface connector, EDP interface connector, VGA interface connector, HDMI interface connector.

The RK3399 main control board is connected with an MIPI interface of an LVDS chip through an MIPI interface circuit, and the LVDS interface of the LVDS chip is connected with the LVDS interface connector; the LVDS conversion chip can be an LT9211 chip, and can realize the mutual conversion between single-channel MIPI DSI/CSI-2 or single-channel/double-channel LVDS or TTL video signals.

The RK3399 main control board is connected with the EDP interface connector through an EDP interface line.

The RK3399 main control board is connected with the DPI interface of the VGA chip through a DPI interface line, and the VGA interface of the VGA chip is connected with the VGA interface connector; the VGA conversion chip can be an LT8711 chip, and DPI signal to VGA signal conversion can be realized.

The RK3399 main control board is connected with a receiving port of the multifunctional conversion chip through an HDMI interface circuit; a transmitting interface of the multifunctional conversion chip, wherein one transmitting interface is connected with the HDMI interface connector, and the other transmitting interface is connected with the LVDS interface connector to serve as a standby LVDS interface; the multifunctional conversion chip can be an RK628 chip, and the input interface supports: HDMI, RGB, BT.1120, output interface support: HDMI, GVI, MIPI _CSI, single/double LVDS, single/double MIPI_DSI, RGB and BT.1120, and supports the simultaneous output of two paths of interfaces with the same resolution.

The LVDS interface and the ED P interface can be adapted to display screens (screens below 65 inches) of LVDS and EDP interfaces of different manufacturers, and independent screen backlight power supply and brightness control are provided. The VGA interface and the HDMI interface can output VGA and HDMI high-definition images.

It will be appreciated that the various numerical numbers referred to in the embodiments of the present application are merely for ease of description and are not intended to limit the scope of the embodiments of the present application.

Claims

1. A self-service terminal master control unit, comprising: RK3399 main control board, USB expansion module, ethernet interface module, audio interface module, display interface module, encryption module, memory module, power module; wherein,

2. The master control unit of claim 1, wherein the USB expansion module comprises: at least one USB2.0HUB main control chip, at least one UART-converting chip and at least one COM-converting chip; wherein,

3. The master control unit of claim 2, further comprising: a WIFI module and a 4G module; wherein,

4. The master control unit of claim 2, further comprising: and the standby Ethernet interface module is connected with a UART interface of the UART conversion chip.

5. The master control unit of claim 1, wherein the display interface module comprises: LVDS interface connectors, EDP interface connectors, VGA interface connectors, and/or HDMI interface connectors; wherein,