CN212541067U - Internet of things human-computer interface system based on SAM9X60 - Google Patents
Internet of things human-computer interface system based on SAM9X60 Download PDFInfo
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- CN212541067U CN212541067U CN202021463050.0U CN202021463050U CN212541067U CN 212541067 U CN212541067 U CN 212541067U CN 202021463050 U CN202021463050 U CN 202021463050U CN 212541067 U CN212541067 U CN 212541067U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
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Abstract
The utility model provides a thing networking human-computer interface system based on SAM9X60, including SAM9X60 treater, SDIO interface wiFi module, net gape, RS-485 interface, RS-232 interface, CAN-bus interface and USB interface respectively with SAM9X60 treater communication connection. The utility model adopts the low power consumption ARM processor SAM9X60, the processor integrates DDR memory, and the complexity of hardware design is reduced; the interface is abundant, the data acquisition and communication control mode is more flexible, and the selectivity is more; the integrated SDIO interface Wi-Fi can be connected with Wi-Fi hotspot networking communication, and can also be used as a hotspot for other nodes to access so as to realize local management.
Description
Technical Field
The utility model relates to a thing networking human-computer interface technical field especially relates to a thing networking human-computer interface system based on SAM9X 60.
Background
The human-computer interface is connected with industrial control equipment such as a Programmable Logic Controller (PLC), a frequency converter, a direct current speed regulator, an instrument and the like, the display screen is used for displaying, working parameters are written in or operation commands are input through an input unit (such as a touch screen, a keyboard, a mouse and the like), and the digital equipment for realizing information interaction between a human and a machine is composed of hardware and software. The hardware part of the human-computer interface product comprises a processor, a display unit, an input unit, a communication interface, a data storage unit and the like, wherein the performance of the processor determines the performance of the human-computer interface product and is a core unit. According to different product grades of the human-computer interface, the processor can be respectively selected from 8-bit, 16-bit and 32-bit processors.
The existing human-computer interface integrates a display screen and a touch screen, supports a network port, a USB interface, an RS-232 interface, an RS-485 interface and the like, supports development of a Linux QT interface, development of an android interface or development of a configuration interface, and mainly aims at meeting the requirements of display and control. With the development of the internet and the internet of things technology, the application scene of a human-computer interface is greatly expanded, the requirements of field application cannot be met by simple display and control, and intellectualization and communication networking are a development trend. From the requirements of better cost and higher integration level, the integration of a human-computer interface, an internet of things gateway and edge computing is also enhanced. The traditional Internet of things human-computer interface system has high hardware design complexity, does not support wireless networking and has small communication mode selectivity, so that the requirement cannot be met.
SUMMERY OF THE UTILITY MODEL
In view of this the utility model provides a thing networking human-computer interface system based on SAM9X60 to solve that traditional thing networking human-computer interface system hardware design complexity is high, do not support wireless network deployment, the optional little problem of communication mode.
The technical scheme of the utility model is realized like this: an Internet of things human-computer interface system based on SAM9X60 comprises an SAM9X60 processor, an SDIO interface WiFi module, a network port, an RS-485 interface, an RS-232 interface, a CAN-bus interface and a USB interface;
and the SDIO interface WiFi module, the network port, the RS-485 interface, the RS-232 interface, the CAN-bus interface and the USB interface are respectively in communication connection with the SAM9X60 processor.
Optionally, the internet of things human-machine interface system further includes an expansion interface of NB-IoT, 4G, Lora and ZigBee, and the expansion interface is in communication connection with the SAM9X60 processor.
Optionally, the internet of things human-computer interface system adopts a capacitive touch screen or a resistive touch screen.
Optionally, the SDIO interface WiFi module includes an AP6181 chip, a WL _ REG _ ON pin, a WL _ HOST _ WAKE pin, an SDIO _ DATA _ CLK pin, an SDIO _ DATA _ C MD pin, an SDIO _ DATA _0 pin, an SDIO _ DATA _1 pin, an SDIO _ DATA _2 pin, an S DIO _ DATA _3 pin, a BT _ WAKE pin, a BT _ RST _ N pin, a BT _ HOST _ WAKE pin, a UART _ RST _ N pin, a UART _ RST _ d pin, a UART _ RXD pin, and a UART _ CTS _ N pin of the AP6181 chip, which are respectively connected to pins 35, 63, 116, 118, 120, 121, 119, 117, 64, 36, 34, 112, 100, 101, 113, and tx8978 of the SAM9X60 processor in a one-to one correspondence;
the common terminal of the SDIO _ DATA _ CLK pin and the SAM9X60 processor 116 pin, the common terminal of the SDIO _ D ATA _ CMD pin and the SAM9X60 processor 118 pin, the common terminal of the SDIO _ DATA _0 pin and the SAM9X60 processor 120 pin, the common terminal of the SDIO _ DATA _1 pin and the SAM9X60 processor 121 pin, the common terminal of the SDIO _ DATA _2 pin and the SAM9X60 processor 119 pin, the common terminal of the SDIO _ DATA _3 pin and the SAM9X60 processor 117 pin, the common terminal of the BT _ WAKE pin and the SAM9X60 processor 64 pin, and the common terminal of the BT _ RST _ N pin and the SAM9X60 processor 36 pin are connected to a 3.3V power supply via a pull-up voltage, respectively.
Optionally, the CAN-bus interface includes an SN65HVD1050 chip, a T XD pin and an RXD pin of the SN65HVD1050 chip are connected to pins No. 115 and No. 114 of the SAM9X60 processor in a one-to-one correspondence manner, and a CANH pin and a CANL pin of the SN65HVD1050 chip are both connected to the CAN bus.
Optionally, the CAN-bus interface further includes a TVS diode NUP2105, and a CANH pin and a CANL pin of the SN65HVD1050 chip are grounded through one TVS diode of the TVS diode NUP2105, respectively.
Optionally, the CAN-bus interface further includes a 120 Ω resistor R36, and the resistor R36 is connected between a CANH pin and a CANL pin of the SN65HVD1050 chip.
The utility model discloses a thing networking human-computer interface system based on SAM9X60 has following beneficial effect for prior art:
(1) the human-computer interface system of the internet of things based on SAM9X60 of the utility model adopts a low-power ARM processor SAM9X60, a DDR memory is integrated by the processor, the reliability of the use of the memory is increased, and the technical requirements of the hardware design, such as the equal length of a signal line, impedance matching, anti-interference design and the like, required by the wiring of the memory are reduced; the network port, the RS-232 interface, the RS-485 interface, the CAN-bus interface, the USB interface and the like are supported, the interfaces are rich, and the data acquisition and communication control modes are more flexible and more selective; the integrated SDIO interface Wi-Fi can be connected with Wi-Fi hotspot networking communication and can also be used as a hotspot for other nodes to access to realize local management;
(2) the utility model supports a capacitive touch screen and a resistive touch screen, and can meet the requirements of touch schemes under different application scenes;
(3) the utility model discloses reserve expansion interface, can expand NB-IoT, 4G, Lora, the multiple wireless communication means of zigBee, can easily realize internet direct access or the wireless mode network deployment of localization, have thing networking gateway function concurrently.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
Fig. 1 is a schematic structural diagram of an internet of things human-machine interface system based on SAM9X60 of the present invention;
fig. 2 is a pin definition diagram of the SAM9X60 processor of the present invention;
fig. 3 is a circuit diagram of the SDIO interface WiFi module of the present invention;
fig. 4 is a circuit diagram of the CAN-bus interface of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely below with reference to the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work all belong to the protection scope of the present invention.
As shown in fig. 1, the SAM9X 60-based internet of things human-computer interface system of this embodiment includes a SAM9X60 processor, an SDIO interface WiFi module, a network port, an RS-485 interface, an RS-232 interface, a CAN-bus interface, and a USB interface, where the SDIO interface WiFi module, the network port, the RS-485 interface, the RS-232 interface, the CAN-bus interface, and the USB interface are respectively in communication connection with the SAM9X60 processor.
In this embodiment, the internet of things human-computer interface system adopts a low-power-consumption ARM processor SAM9X60, and fig. 2 is a pin definition diagram thereof. The main frequency of SAM9X60 is as high as 600MHz, and the operation performance requirement of edge calculation in the field environment can be satisfied while the requirements of display, control and communication are satisfied. The DDR memory is integrated by the processor, the use reliability of the memory is improved, and the technical requirements of equal length of signal lines, impedance matching, anti-interference design and the like required by memory wiring in hardware design are reduced; the network port, the RS-232 interface, the RS-485 interface, the CAN-bus interface, the USB interface and the like are supported, the interfaces are rich, and the data acquisition and communication control modes are more flexible and more selective; the integrated SDIO interface Wi-Fi can be connected with Wi-Fi hotspot networking communication, and can also be used as a hotspot for other nodes to access so as to realize local management.
As shown in fig. 1, the internet of things human-machine interface system of this embodiment further includes an NB-IoT, 4G, Lora and a ZigBee expansion interface, and the expansion interface is in communication connection with the SAM9X60 processor. Therefore, the Internet of things human-computer interface system reserves an expansion interface, can expand multiple wireless communication means such as NB-IoT, 4G, Lora and ZigBee, can easily realize direct Internet access (NB-IoT and 4G communication mode) or local wireless mode networking (Lora and ZigBee communication mode), and has the function of an Internet of things gateway.
The human-computer interface system of the internet of things of the embodiment adopts a capacitive touch screen or resistive touch, and can meet the requirements of touch schemes in different application scenes.
Specifically, as shown in fig. 3, the SDIO interface WiFi module of the present embodiment preferably includes an AP6181 chip and peripheral circuits, and as shown in fig. 2, a WL _ REG _ ON pin, a WL _ HOST _ WAKE pin, an SDIO _ DATA _ CLK pin, an SDIO _ DATA _ CMD pin, an SDIO _ DATA _0 pin, an SDIO _ DATA _1 pin, an SDIO _ DATA _2 pin, an SDIO _ DATA _3 pin, a BT _ WAKE pin, a BT _ RST _ N pin, a BT _ HOST _ WAKE pin, a UART _ RST _ N pin, a UART _ TXD pin, a UART _ RXD pin, and a UART _ CTS _ N pin of the AP6181 chip are respectively connected to pins 35, 63, 116, 118, 120, 121, 119, 117, 64, 36, 34, 112, 100, 101, and 113 of the SAM9X60 processor in a one-to one correspondence.
The common terminal of the SDIO _ DATA _ CLK pin and the SAM9X60 processor 116 pin, the common terminal of the SDIO _ D ATA _ CMD pin and the SAM9X60 processor 118 pin, the common terminal of the SDIO _ DATA _0 pin and the SAM9X60 processor 120 pin, the common terminal of the SDIO _ DATA _1 pin and the SAM9X60 processor 121 pin, the common terminal of the SDIO _ DATA _2 pin and the SAM9X60 processor 119 pin, the common terminal of the SDIO _ DATA _3 pin and the SAM9X60 processor 117 pin, the common terminal of the BT _ WAKE pin and the SAM9X60 processor 64 pin, and the common terminal of the BT _ RST _ N pin and the SAM9X60 processor 36 pin are connected to a 3.3V power supply via a pull-up voltage, respectively. In this embodiment, only the main connection relationship between the AP6181 chip and the SAM9X60 processor is given, and the peripheral circuit of the AP6181 chip may refer to the conventional connection method, which is not described herein again.
The AP6181 chip is a single-frequency WiFi module, adopts a Botong BCM43362 scheme, supports an Andr oid/Linux/RTOS operating system, conforms to the ieee-802.11b/g/n standard, has a single-stream transmission rate of 72.2Mbps in the 802.11n draft, is specified to be 54Mbps in IEEE802.11g, has IE of 11Mbps, is connected to the wireless LAN in EE802.11b, and provides an SDIO interface for Wi-Fi by the integrated module.
Specifically, as shown in fig. 4, in this embodiment, it is preferable that the CAN-bus interface includes an SN65HVD1050 chip and a peripheral circuit, TXD pins and RXD pins of the SN65HVD1050 chip are respectively connected to pins 115 and 114 of the SAM9X60 processor in a one-to-one correspondence manner, and CANH pins and CANL pins of the SN65HVD1050 chip are both connected to the CAN bus. In this embodiment, only the main connection relationship between the SN65HVD1050 chip and the SAM9X60 processor is shown, and the peripheral circuit of the SN65HVD1050 chip may refer to the conventional connection method, which is not described herein again. In addition, the communication mode of the embodiment is different from that of the conventional scheme mainly in that CAN communication is added, and the conventional circuit CAN be referred to by the realization circuits of the network port, the RS-485 interface, the RS-232 interface and the USB interface.
The SN65HVD1050 chip is a differential output CAN transceiver, and is used for converting a TTL signal output by the SAM9X60 processor into a differential signal of a CAN specification to be output, receiving differential data on a CAN bus, converting the differential data into the TTL signal and transmitting the TTL signal to the SAM9X60 processor.
As shown in fig. 4, the CAN-bus interface further includes TVS diodes NUP2105, and the CANH pin and the CANL pin of the SN65HV D1050 chip are grounded through one TVS diode NUP2105 of the TVS diodes respectively. NUP2105 is a two-way TVS diode array with a double junction common cathode configuration that protects two independent lines. And a TVS diode is reversely connected between the CANH pin and the CANL pin, and when the CAN bus has higher negative voltage, the TVS diode plays a role in overvoltage protection and avoids burning the SN65HVD1050 chip by overvoltage.
As shown in fig. 4, the CAN-bus interface further includes a 120 Ω resistor R36, and the resistor R36 is connected between the CANH pin and the CANL pin of the S N65HVD1050 chip. Because CAN communication is multi-master transmission, in order to eliminate the short circuit phenomenon, the property of the CANH pin is different from that of the CANL pin, the logic state of the CANH pin is a high level and a high resistance state, the logic state of the CANL pin is a low level and a high resistance state, the high resistance state level of the CANH pin and the high resistance state level is uncertain, and the resistor R36 is a terminal resistor of an SN65HVD1050 chip and is used for impedance matching, matching the impedance between a signal source and a transmission line, so that the CANH pin and the CANL pin have the determined levels.
As shown in fig. 4, the CAN-bus interface further includes a resistor R37, and the resistor R37 is serially connected between the RXD pin of the SN65HVD1050 chip and the number 114 pin of the SAM9X60 processor. Because the output level current of the SN65H VD1050 chip is small, the embodiment does not need to perform overcurrent protection on the output route of the SN65HVD1050 chip, and the output level current of the SAM9X60 processor is large, so that the S N65HVD1050 chip is burnt by overcurrent, and therefore, the resistor R37 is used for performing overcurrent protection on the input route of the SN65HVD1050 chip.
The above description is only a preferred embodiment of the present invention, and should not be taken as limiting the invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (7)
1. An Internet of things human-computer interface system based on SAM9X60 is characterized by comprising an SAM9X60 processor, an SDIO interface WiFi module, a network port, an RS-485 interface, an RS-232 interface, a CAN-bus interface and a USB interface;
and the SDIO interface WiFi module, the network port, the RS-485 interface, the RS-232 interface, the CAN-bus interface and the USB interface are respectively in communication connection with the SAM9X60 processor.
2. The SAM9X 60-based internet of things human-machine interface system of claim 1, further comprising an NB-IoT, 4G, Lora, and ZigBee expansion interface communicatively connected to a SAM9X60 processor.
3. The SAM9X 60-based Internet of things human-machine interface system of claim 1, wherein the Internet of things human-machine interface system is a capacitive touch screen or a resistive touch screen.
4. The SAM9X 60-based internet of things human-machine interface system according to claim 1, wherein the SDIO interface WiFi module comprises an AP6181 chip, a WL _ REG _ ON pin, a WL _ HOST _ WAKE pin, an SDIO _ DATA _ CLK pin, an SDIO _ DATA _ CMD pin, an SDIO _ DATA _0 pin, an SDIO _ DATA _1 pin, an SDIO _ DATA _2 pin, an SDIO _ DATA _3 pin, a BT _ WAKE pin, a BT _ RST _ N pin, a BT _ HOST _ WAKE pin, a UART _ txn pin, a UART _ d pin, and a UART _ CTS _ N pin of the SAM9X60 processor connected to the 35, 63, 116, 118, 120, sdi, 119, 117, 64, 36, 34, 112, 100, 101, 113, and 113 pins in a one-to one correspondence;
the common terminal of the SDIO _ DATA _ CLK pin and the SAM9X60 processor 116 pin, the common terminal of the SDIO _ DATA _ CMD pin and the SAM9X60 processor 118 pin, the common terminal of the SDIO _ DATA _0 pin and the SAM9X60 processor 120 pin, the common terminal of the SDIO _ DATA _1 pin and the SAM9X60 processor 121 pin, the common terminal of the SDIO _ DATA _2 pin and the SAM9X60 processor 119 pin, the common terminal of the SDIO _ DATA _3 pin and the SAM9X60 processor 117 pin, the common terminal of the BT _ WAKE pin and the SAM9X60 processor 64 pin, and the common terminal of the BT _ RST _ N pin and the SAM9X60 processor 36 pin are respectively connected to a 3.3V power supply via a pull-up voltage.
5. The human-computer interface system of internet of things based on SAM9X60 of claim 1, wherein the CAN-bus interface includes SN65HVD1050 chip, and the TXD pin, RXD pin of SN65HVD1050 chip are connected with 115, 114 number pin one-to-one correspondence of SAM9X60 treater respectively, and CANH pin, CANL pin of SN65HVD1050 chip are connected with CAN bus.
6. The SAM9X 60-based human-machine interface system of claim 5, wherein the CAN-bus interface further comprises TVS diodes NUP2105, and CANH pins and CANL pins of the SN65HVD1050 chip are grounded through one TVS diode of the TVS diodes NUP2105 respectively.
7. The SAM9X 60-based human-computer interface system of the internet of things of claim 5, wherein the CAN-bus interface further comprises a 120 Ω resistor R36, and the resistor R36 is connected between a CANH pin and a CANL pin of the SN65HVD1050 chip.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| EP4178165A1 (en) * | 2021-11-04 | 2023-05-10 | Geberit International AG | Gateway for sanitary system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP4178165A1 (en) * | 2021-11-04 | 2023-05-10 | Geberit International AG | Gateway for sanitary system |
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