DSGW-090-Caregiving Nursing Bed IoT Gateway

1. Product Introduction

1.1 Product Overview

Based on MTK7628 for CPU designed for nursing use scenarios a model created light weight micro-development Embedded Gateway product. DSGW-090-Caregiving have RJ45 serial portinterface, adaptable to connect to the data access of nursing beds. In addition, the gateway supports the access of BLE devices, such as health bracelets, positioning tags, bluetooth diapers and other industry equipment. Applies to Skilled Nursing, Rehabilitation Nursing, Assisted Living, Home Care, Memory Care scene. Otherwise Gateways support Openwrt system, facilitates secondary development and platform docking for customers.

1.2 Hardware Specifications

Name	Describe	Remark
Product Model	DSGW-090-ONDO
CPU	MT7628AN	The core board is connected to the base board through patch
RAM	128MB
SPI Flash	64MB
Network Port	Provides UART signals for connecting to external devices, external power supply, and request signals between external devices.Nursing BedDevices communicate.	The interface definition is non-standard, and the interface is compatible with RJ45 and RJ50 crystal heads
USB TYPE-C	The device can be powered via TYPE-C.	This port only supplies power to the device.
Button	A factory reset button.
Wi-Fi	Wi-Fi2.4G, 802.11b/g/n 2T2R, 300Mbps, 2 ipex antenna sockets	This gateway uses 1T1R connection mode
BLE	BLE 5, 2.4G
LTE	LTE Cat1, Band B2/B4/B5/B12/B13, 10 (DL)/5 (UL)	Reserved function
Debug interface	Support, 1 UART interface on board
SD Card and SIM Card	Reserved SD card and SIM card for LTE	The motherboard has a reserved function, but the shell does not have a reserved interface for this function
LED	Power status indicator light control interface
	Network status indicator light control interface
	Control box working status indicator light control interface
Cooling Solution	Support radiator + fan
Sensor Interface	Support external six-axis gyroscope sensor and magnetometer sensor
LED	Flash control interface
	Bluetooth working status indicator light control interface
	Wi-Fi working status indicator light control interface
Power Supply	Provides 17~50V DC via RJ45 or 5V/2A DC power via TYPE-C
Operating Temperature	-10℃ ~ 55℃
Storage Temperature	-20℃ ~ 65 ℃
PCBA Dimensions	81.95*89.55mm

1.3 Product Application Diagram

1.3.1 Application Block Diagram

Functional description of nursing IoT scenario:

1. Vital signs monitoring, patient dataStatistics and infection detection
DSGW-090 gateway reads data through Bluetooth Wear. The data collected by the smart bracelet provides a steady stream of actionable data and verification of care, automate repetitive, labor-intensive workflows and documentation while delivering the best possible care to your patients.

2. Positioning services and nursing process monitoring
DSGW-090 obtains signal strength data from positioning tags on medical equipment such as nursing machines and smart bracelets worn by patients to track and manage important assets such as patients and durable medical equipment, and locate them when needed. Gain visibility into workflow interactions between patients, caregivers, and devices, and passively validate care plan adherence and compliance.

3. Incontinence Care Remote Monitoring
DSGW-090 gateway uses the connected smart Bluetooth diaper data toReal-time, responsive incontinence care revolutionizes caregivers’ greatest workflow burden, directly improving clinical outcomes, patient dignity, and satisfaction for families, residents, and caregivers.

1.3.2 Industry pain points and solutions

1. Low efficiency of nursing staff
In addition to completing normal nursing work for patients, nursing staff also need to deal with frequent emergencies and frequent scheduled inspections, and spend more time on statistics and analysis of patient data. Dusun Nursing Gateway DSGW-090 and external devices can provide intelligent feedback on emergency situations (such as incontinence, etc.) and support background data statistics and document output, greatly improving the efficiency of nursing staff.

2. Poor standardization of nursing process
Through personnel management, it is impossible to standardize the constraints on nursing staff, resulting in poor compliance with the nursing process, which leads to some accidents. Through the Dusun Nursing Gateway and external positioning tag devices, the location trajectory of medical equipment, medical staff, and patients can be viewed in real time, so as to better carry out standardized nursing.

1.3.3 System software block diagram

Dusun SDK is a highly customizable system developed based on the Openwrt system. It is used to develop nursing gateways with advantages in flexibility and scalability. It is very suitable for developing nursing gateways with high customization and security. The following is the software framework of the default Openwrt system of DSGW-090.

Dusun provides industry SDK source code that matches the nursing motherboard, supporting customers to conduct micro-development to achieve rapid productization.

Dusun Nursing Industry SDK has the following features:
1. Streamlined operating system:
On the premise of meeting industry applications, the number of components is streamlined, the system resource utilization rate is high, thereby reducing hardware costs, and to a certain extent, the functional structure is optimized, the system architecture is reasonably laid out, and the system is more efficient and easy to maintain;

2. BSP with industry attributes:
According to the types of peripheral devices used in the industry, driver transplantation and debugging are carried out and industry algorithms are adapted to meet the customer’s needs for selecting an overall hardware + algorithm solution. In addition, Dusun BSP driver will continue to iterate the access to peripheral devices of different brands and models.

3.Easy customization:
Allows developers to customize system kernel and user space applications according to the specific needs of the nursing gateway. This allows the nursing gateway to more accurately meet the needs of specific nursing institutions;

4.Highly scalable:
Functionality can be easily expanded by installing additional software packages. This allows the Care Gateway to be continuously upgraded over time to adapt to new technical requirements or add new features

5.Powerful network functions:
It has built-in comprehensive network functions, such as routing, bridging, DHCP server, DNS forwarding, etc. These functions are very useful for building a nursing gateway;

6.Reliability and stability:
Dusun SDK is based on OpenWrt19.07 and has been extensively tested and used. It has shown good reliability and stability in long-term operation, which is very important for nursing equipment that needs to work continuously.

1.3.3 Supported algorithms and peripheral hardware

1.3.3.2 CoreExternal devices

Peripherals	Model	Illustrate
USB	--	5V type-C and PoE power supply

1.3.3.2 CoreExternal devices

Matching peripheral hardware	Model	Illustrate
Nursing Bed	Customer Model	Customizable docking controls for customer care beds
Asset Location Tags	DSBC-061	Can be installed and positioned medical equipment
Bluetooth smart bracelet	DSSW-010	Bluetooth bracelet, heart rate, etc.
Smart Diapers	Smardii Smart Diaper Puck	Bluetooth Protocol

1.3.3.3 Supported algorithm models

none

2. Installation Instructions

2.1 Packaging instructions

⚠️：This section describes the product packaging form (boxed/antistatic bag, etc.?), packaging size, unit weight, packing instructions, etc.

1. Describe the type of box: airplane box, top and bottom box, double-insert box, buckle bottom box, drawer box;

2. Describe the type of bag: bubble bag, flat bag, sealed bag;

3. State the weight of the complete machine (excluding accessories), with one decimal place and tolerance;
4. Describe the packing situation: how many boxes are in a box, how they are arranged, and provide illustrations.

2.2 Accessories List

⚠️：This section describes the factory accessories list of the product

1. Use graphic description + list to describe the factory accessories of the whole machine;

2. If necessary, explain how to use the accessories, such as how to install them, installation precautions, etc.

2.3 Installation

⚠️：This section describes the installation method and installation precautions of the product. If the product is a complete machine, use diagrams to describe the appropriate installation method and installation steps. If the product is a PCBA, describe the fixed space and air avoidance rules, radiator installation, etc.

1. Whole machine status before leaving the factory: Use graphic description + text description to explain the installation method and steps of the product, and especially emphasize precautions, etc.

2. Module status at the factory: Describe the module installation method, precautions, recommended hole opening values, etc. If necessary, we can use graphic descriptions to recommend customers to assemble the module according to the structure recommended by our company.

2.4 Product Dimensions

⚠️: Use 2D wireframes to quickly describe the product dimensions. Also provide a link to download the 3D product image.

1. Use the simplest wireframe to describe the key dimensions of the product and indicate the tolerances;

2. Integrate the product into a “part state” and provide 3D drawings (STP format).

3. Hardware Instructions

3.1 Product Appearance

The product appearance is as follows:

3.2 Product IO Interface Diagram

3.2.1 Interface Identification Diagram

3.2.2 Interface Usage Description

Serial number	Describe	Remark
1	Connector between motherboard and card board	Reserve
2	WIFI module RF output port 1	Reserve
3	WIFI module RF output port 2	For connecting WIFI FPC antenna
4	LTE Cat1 Module	Reserved LTE module location
5	LTE Antenna Pin	Reserved for connecting LTE FPC antenna
6	RJ45 network port	Used to connect to the RJ50 terminal to provide power to the mainboard and communicate with CO61
7	USB TYPE-C interface	Used to provide power to the motherboard
8	Button	For restoring factory settings
9	BLE Module	The module is on the mainboard and the interface is not external
10	BLE module ipex socket	Used to connect BLE module and built-in FPC antenna
11	Debug serial port	For equipment debugging
12	LTE Antenna Pin	Reserved for connecting LTE FPC antenna
13	Green LED light	Control box status indicator
14	Green LED light	Network status indicator
15	Green LED light	Power indicator

3.2.2.1 Instructions for use of core board interface

① The mainboard uses the MT7628AN core board. The position of the core board on the PCBA is shown in the figure below:

The module adopts patch mode, and its size is: 18.68*35.23mm
② The actual picture of the core board is shown below:

③ The U1 pin definition of the core board is as follows:

The pin function definitions are as follows:

Serial number	Pin Name	Pin Description	IO Level	Remark
1	GND	Power Ground	0V	Module power supply
2	VCC33	Power positive	3.3V
3	VCC33	Power positive	3.3V
4	GND	Power Ground	0V
5	SPI_CS0	SPI device chip select 0	3.3V	Shared with GPIO#10
6	REF_CLKO	Reference clock output	3.3V	Shared with GPIO#37
7	PREST_N	PCIe reset output	3.3V	Shared with GPIO#36
8	WDT_RST_N	Watchdog reset output	3.3V	Shared with GPIO#38
9	EPHY_LED4	#4 Network port working indicator	3.3V	Multiplexed with GPIO#39 function
10	EPHY_LED3	#3 Network port working indicator	3.3V	Shared with GPIO#40
11	EPHY_LED2	#2 Network port working indicator	3.3V	Shared with GPIO#41
12	EPHY_LED1	#1 Network port working indicator	3.3V	Shared with GPIO#42
13	EPHY_LED0	#0 Network port working indicator	3.3V	Shared with GPIO#43
14	PORST_N	Power-On Reset	3.3V	Function integrated in the core board
15	UART_TXD1	Serial port 1 signal output	3.3V	Multiplexed with GPIO45 function
16	UART_RXD1	Serial port 1 signal input	3.3V	Multiplexed with GPIO46 function
17	I2S_SDI	I2S Data Input	3.3V	Multiplexed with GPIO#0 function
18	I2S_SDO	I2S data output	3.3V	Multiplexed with GPIO#1 function
19	I2S_WS	I2S word selection	3.3V	Multiplexed with GPIO#2 function
20	I2S_CLK	I2S Clock	3.3V	Multiplexed with GPIO#3 function
21	GND	Systematically	0V
22	ANT	Antenna signal output		Reserved antenna output
23	GND	Systematically	0V
24	I2C_SCLK	I2C Clock	3.3V	Multiplexed with GPIO#4 function
25	I2C_SD	I2C Data	3.3V	Multiplexed with GPIO#5 function
26	SPI_CS1	SPI chip select 1	3.3V	Shared with GPIO#6
27	SPI_CLK	SPI Clock	3.3V	Shared with GPIO#7
28	SPI_MISO	SPI data master input slave output	3.3V	Multiplexed with GPIO#9 function
29	SPI_MOSI	SPI data master output slave input	3.3V	Shared with GPIO#8
30	GPIO0	GPIO	3.3V	Multiplexed with GPIO#11 function
31	UART_TXD0	Serial port 0 signal output	3.3V	Shared with GPIO#12
32	UART_RXD0	Serial port 0 signal input	3.3V	Shared with GPIO#13
33	WLED_N	WLAN working indicator	3.3V	Shared with GPIO#44
34	MDI_RP_P0	#0 Network port receiving positive		Can be connected to RJ45 network port
35	MDI_RN_P0	#0 Network port receiving negative		Can be connected to RJ45 network port
36	MDI_TP_P0	#0 Network port sending positive		Can be connected to RJ45 network port
37	MDI_TN_P0	#0 Network port sends negative		Can be connected to RJ45 network port
38	MDI_TP_P1	#1 Network port sends positive		Shared with GPIO#14
39	MDI_TN_P1	#1 Network port sends negative		Shared with GPIO#15
40	MDI_RP_P1	#1 Network port receiving positive		Multiplexed with GPIO#16
41	MDI_RN_P1	#1 Network port receiving negative		Shared with GPIO#17
42	MDI_RP_P2	#2 Network port receiving positive		Shared with GPIO#18
43	MDI_RN_P2	#2 Network port receives negative		Shared with GPIO#19
44	MDI_TP_P2	#2 Network port sends positive		Shared with GPIO#20
45	MDI_TN_P2	#2 Network port sends negative		Shared with GPIO#21
46	MDI_TP_P3	#3 Network port sends positive		Shared with GPIO#22
47	MDI_TN_P3	#3 Network port sends negative		Shared with GPIO#23
48	MDI_RP_P3	#3 Network port receiving positive		Shared with GPIO#24
49	MDI_RN_P3	#3 Network port receiving negative		Shared with GPIO#25
50	MDI_RP_P4	#4 Network port receiving positive		Shared with GPIO#26
51	MDI_RN_P4	#4 Network port receives negative		Shared with GPIO#27
52	MDI_TP_P4	#4 Network port sends positive		Shared with GPIO#28
53	MDI_TN_P4	#4 Network port sends negative		Shared with GPIO#29
54	USB_DP	USB master data positive
55	USB_DM	USB master data negative
56	GND	Systematically	0V

3.2.2.2 RJ45 interface instructions

① The pin sequence of RJ45 8P8C interface U8 on PCBA is shown in the figure below:

RJ45 is the standard socket of TAP UP, which is compatible with RJ50 terminals. The order is as shown above, and the function definition of the pins is as follows:

Serial number	Pin Name	Pin Description	IO Level	Remark
1	VPOS	Power positive	17V~50V	MJB5 provides power
2	GND	Power Ground	0V	MJB5 provides power
3	PRQ_N	Main control wake-up control box	40V	Level determined by MJB5
4	NC	No signal connected
5	NC	No signal connected
6	NC	No signal connected
7	CO61_RXD	Master serial port receiving signal	3.3V	Main control and CO61 data communication interface
8	CO61_TXD	The master serial port sends a signal	3.3V	Main control and CO61 data communication interface

② RJ45 specification, this socket is compatible with RJ45 and RJ50 heads:

3.2.2.3 TYPE-C interface usage instructions

① The pin sequence of TYPE-C J5 on PCBA is shown in the figure below:

The pin function definitions are as follows:

Serial number	Pin Name	Pin Description	IO Level	Remark
A1	GND	Power Ground	0V	Gateway external 5V power supply
A4	VBUS	Power positive	5.0V	Gateway external 5V power supply
A5	CC1	Channel 1 detection		5.1K resistor from the slave to ground
A6	DP1	USB2.0 differential signal, positive of channel 1		This gateway does not have this function
A7	DN1	USB2.0 differential signal, negative of channel 1
A8	SBU1	Auxiliary functions of channel 1
A9	VBUS	Power positive	5.0V	Gateway external 5V power supply
A12	GND	Power Ground	0V
B1	GND	Power Ground	0V
B4	VBUS	Power positive	5.0V
B5	CC2	Channel 2 detection		5.1K resistor from the slave to ground
B6	DP2	USB2.0 differential signal, positive of channel 2		This gateway does not have this function
B7	DN2	USB2.0 differential signal, negative of channel 2
B8	SBU2	Auxiliary functions of channel 2
B9	VBUS	Power positive	5.0V	Gateway external 5V power supply
B12	GND	Power Ground	0V	Gateway external 5V power supply

② This port is compatible with the standard TYPE-C interface, and the input voltage is 5V/2A;
③ The device datasheet is as follows:

3.2.2.4 Button Usage Instructions

There is only one factory reset button on the small board, and the small board is connected to the main board via a pin header:

Pressing this button for more than 10 seconds will restore the gateway to factory settings.

3.2.2.5 Debug serial port usage instructions

① Three test points J1 with a spacing of 2.54mm are reserved on the mainboard as the lead-out points of the debug serial port, as shown below:

② The definitions of the tests are shown in the silkscreen at the corresponding points, from left to right: TX, RX and GND.

3.2.2.6 Wireless Function Instructions

3.2.2.6.1 WIFI Function Description

① The WIFI function of the gateway is implemented by the main control module shown in the figure below. The pin definition of the main control module U1 is as follows:

The pin definition is the same as that of the core board.

② The WIFI module supports IEEE802.11b/g/n, 2T2R, 300Mbps data rate. The built-in FPC antenna is led out from the two ipex on the module.

3.2.2.6.2 BLE Function Description

① The BLE function of the gateway is implemented by the BLE module shown in the figure below. The U3 pin of the BLE module is defined as follows:

The pin function definitions are as follows:

Serial number	Pin Name	Pin Description	IO Level	Remark
1	GND	Systematically	0V
2	ANT	Antenna signal terminal		External RF signal port
3	GND	Systematically	0V
4	NC
5	PA0	GPIO Pins	3.3V	Can be used for GPIO port applications
6	PC5	GPIO Pins	3.3V	Can be used for GPIO port applications
7	PC4	GPIO Pins	3.3V	Can be used for GPIO port applications
8	PA3	GPIO Pins	3.3V	Can be used for GPIO port applications
9	PA4	GPIO Pins	3.3V	Can be used for GPIO port applications
10	PC1	GPIO Pins	3.3V	Can be used for GPIO port applications
11	PC0	GPIO Pins	3.3V	Can be used for GPIO port applications
12	PD4	GPIO Pins	3.3V	Can be used for GPIO port applications
13	PD3	GPIO Pins	3.3V	Can be used for GPIO port applications
14	PD2	GPIO Pins	3.3V	Can be used for GPIO port applications
15	NC
16	NC
17	PB0	GPIO Pins	3.3V	Can be used for GPIO port applications
18	PB1	GPIO Pins	3.3V	Can be used for GPIO port applications
19	NC
20	GND	Systematically	0V
21	VCC3V3	System Power	3.3V	Module power supply positive electrode
22	RX0	Serial port receiving signal	3.3V	Serial signal input
23	TX0	Serial port sends signal	3.3V	Serial signal output
24	SWDIO	JTAG Data Port	3.3V	JTAG debug port
25	SWCLK	JTAG clock port	3.3V
26	PC3	GPIO Pins	3.3V	Can be used for GPIO port applications
27	PC2	GPIO Pins	3.3V	Can be used for GPIO port applications
28	nRESET	Module reset pin	3.3V	Module reset function pin

② The BLE module supports Bluetooth 5.0, and the built-in FPC antenna is led out from the ipex socket on the module.

3.3 Status indicator light description

There are three status indicators on the motherboard, namely LED1, LED2 and LED3. The three status indicators are observed through the light guide on the housing. The positions of the three status indicators on the PCBA are shown in the figure below:

3.3.1 Definition and color description of indicator lights

Serial number	name	color	state	Remark
1	LED1	green	Display status can be user defined	Power indicator
2	LED2	green	Display status can be user defined	Network status indication
3	LED3	green	Display status can be user defined	Control box status indication

3.3.2 Indicator light status description

The indicator light colors and status descriptions in this gateway can be defined by the customer software.

4. Software Instructions

4.1 Mainboard jumper settings and interface definitions

4.1.1 Button Description

The motherboard has a software button by default, which can be modified according to customer needs.

By default, when the button is pressed, the system will call /etc/rc.button/BTN_0 script:

1. Short press and release to turn on the hotspot

2. Press and hold for 5 seconds and then release to restore the factory settings.

				
					#!/bin/sh
./lib/functions.sh
./lib/functions/leds.sh
if [ "${ACTION}" == "pressed" ];
then
    touch /tmp/BTN_0_pressed
    touch /tmp/btn1
else
    rm -f /tmp/BTN_0_pressed
fi

if [ -f /tmp/dusun_upgrade ] ; then
    exit 0
fi

[ ! "${ACTION}" == "released" ] && {
    exit 0
}

[ "$SEEN" -ge 5 ] && {
    logger "factory reset.."
    led_off zigbee
    led_off pwrled
    led_off errled
    led_timer zigbee 200 200
    led_timer pwrled 200 200
    led_timer errled 200 200
    logger "FACTORY RESET"
    #jffs2reset -y && reboot &
    firstboot -y && reboot &
    exit 0
}

[ "$SEEN" -ge 0 ] && {
    logger "Open Default Ap"
    uci set /etc/config/wireless.radio0.disabled=0; uci commit wireless;
    uci set /etc/config/wireless.ap0.hidden=0; uci commit wireless;
    #/etc/init.d/network restart;
    /etc/init.d/uhttpd restart
    Wi-Fi &
    exit 0
}

4.2 Debug serial port parameter settings

4.2.1 Download PC serial port tool

It is recommended to use MobaXterm to access, the recommended download address is:

https://mobaxterm.mobatek.net/download-home-edition.html
The effect after the tool opens the serial port is as follows:

4.2.2 Serial port settings

Debug serial port baud rate 57600
1) 8 data bits
2) 1 stop bit
3) No verification
4) No flow control

Please note that the serial port baud rate drop-down box does not have 57600, you need to enter directly.
See the figure below for details.

4.2.3 Serial port connection diagram

4.3 Firmware Burning

4.3.1 Preparation

● Remove the spi flash from the board

● Put the flash on the SPI Flash burner, select the correct flash model, and then import the burning file

● Press Auto Burn

● Wait for the burning to be successful, then reattach the flash to the board

4.3.2 SDK application and download

4.3.2.1 Apply for SDK

The SDK versions of Dusun’s different chip platforms need to be applied to the corresponding business end respectively. For example, your company has received the SDK for MT7628, and now there is a new project that requires the SDK for MT7621. We need to contact the corresponding business end of Dusun for business confirmation, and the business end will assist in the application. After approval by Dusun’s reviewers, the technical department can disclose information to your company.

Notice:
The SDK code management released by Dusun follows Google’s REPO method. Users are not recommended to delete the SDK’s REPO and GIT version records.

4.3.2.2 Generate server key

Enter on the server command line

				
					ssh-keygen -t rsa -C " xxxx@xxxx.com "

2. Keep pressing Enter without entering any task characters;

3. After generating the key, email the ~/.ssh/id_rsa.pub file to Dusun

4.3.2.3 Git Configuration

Enter on the server command line:

				
					git config --global user.email " You@example.com "
git config --global user.name "Your Name"

4.3.2.4 SDK Download

4.3.2.4.1 Download repo

				
					git clone ssh:// git@roombanker.x3322.net :2223/dusun_repo.git

4.3.2.4.2 Adding environment variables

				
					sudo cp -f ~/work/dusun_repo/repo /usr/bin/repo
sudo chmod +x /usr/bin/repo

4.3.2.4.3 Get the code

				
					mkdir -p ~/work/project/dev
cd ~/work/project/dev
repo init -u ssh:// git@roombanker.x3322.net :2223/mtk7628_op/manifests_first.git -m linux.xml -b 090 --no-repo-verify
repo sync -c -j8
repo start master --all

4.4 SDK Introduction

4.4.1. Compile Commands

				
					mkdir -p ~/workdir
tar zxvf DSGW-090-ondo_sdk_AVV4.8.332.49212713.tar.gz -C ~/workdir/
cd ~/workdir/
./build.sh

4.4.2 Compilation Products

				
					openwrt-ramips-mt76x8-DSGW021-squashfs-sysupgrade.binUpgrade the firmware for the system
[au@git openwrt]$ ls ./bin/targets/ramips/mt76x8/ -alh
total 138M
drwxr-xr-x 3 au au 4.0K Jun 1 2022 .
drwxr-xr-x 5 au au 48 Sep 30 2021 ..
-rw-r--r-- 1 au au 122 Mar 24 17:40 config.buildinfo
-rw-r--r-- 1 au au 263 Mar 24 17:40 feeds.buildinfo
-rw-r--r-- 1 au au 4.9K Mar 16 21:31 openwrt-ramips-mt76x8-device-dsgw090.manifest
-rw-r--r-- 1 au au 14M Mar 16 21:31 openwrt-ramips-mt76x8-DSGW021-squashfs-sysupgrade.bin
drwxr-xr-x 2 au au 12K Mar 24 17:12 packages
-rw-r--r-- 1 au au 2.8K Mar 24 17:41 sha256sums
-rw-r--r-- 1 au au 18 Mar 24 17:40 version.buildinfo

4.4.3 Commonly used interfaces

4.4.3.1 Wifi

The wifi configuration under Openwrt is achieved by modifying the /etc/config/wireless configuration file.

4.4.3.1.1 Ap settings

				
					root@DSGW090:~# cat /etc/config/wireless  
config wifi-device 'radio0'
    option type 'mac80211'
    option channel 'auto'
    option hwmode '11g'
    option noscan '1'
    option path 'platform/10300000.wmac'
    option htmode 'HT40'
config wifi-iface 'ap0'
    option device 'radio0'
    option network 'lan'
    option mode 'ap'
    option ssid 'Dusun-E3AD24-2.4G'
    option encryption 'psk2'
    option key '7BE3AD24'

4.4.3.1.2 Sta settings

				
					root@DSGW090:~# cat /etc/config/wireless
config wifi-device 'radio0'
    option type 'mac80211'
    option channel 'auto'
    option hwmode '11g'
    option noscan '1'
    option path 'platform/10300000.wmac'
    option htmode 'HT40'
config wifi-iface 'sta0'
    option device 'radio0'
    option network 'wwan0'
    option mode 'sta'
    option ssid 'AAAAAA'
    option encryption 'psk2'
    option key 'dl123456'
        
admin@DSGW090:/root# cat /etc/config/network
... //Other content
    config interface 'wwan0'
    option proto 'dhcp'
    option metric '1'
    option ifname 'wlan0'
    option mtu '1492'
... //Other content

4.4.3.2 Ethernet

This gateway has only one WAN port, configured in /etc/config/network

				
					root@DSGW090:~# cat /etc/config/network
... //Other configuration
config device 'lan_wlan0_dev'
    option name 'wlan0'
    option macaddr '30:ae:7b:e3:ad:25'
config device 'lan_wlan1_dev'
    option name 'wlan1'
    option macaddr '30:ae:7b:e3:ad:25'
config interface 'wan'
    option ifname 'eth0'
    option proto 'dhcp'
    option mtu '1492'
config device 'wan_eth0_dev'
    option name 'eth0'
    option macaddr 'ff:ff:ff:ff:00:00'
config interface 'wan6'
    option ifname 'eth0'
    option proto 'dhcpv6'
// Other configuration

The default is DHCP mode. If you need to configure it to a static IP, you can configure it on the page. The configuration after configuration should be similar to the following

				
					root@DSGW090:~# cat /etc/config/network
... //Other configuration
config device 'lan_wlan0_dev'
    option name 'wlan0'
    option macaddr '30:ae:7b:e3:ad:25'
config device 'lan_wlan1_dev'
    option name 'wlan1'
    option macaddr '30:ae:7b:e3:ad:25'
config interface 'wan'
    option ifname 'eth0'
    option proto 'static'
    optionipaddr '192.168.100.33'
    optiongateway '192.168.100.1'
    optionnetmask '255.255.255.0'
    option dns '192.168.100.1 '
    option mtu '1492'
        
config device 'wan_eth0_dev'
    option name 'eth0'
    option macaddr 'ff:ff:ff:ff:00:00'
config interface 'wan6'
    option ifname 'eth0'
    option proto 'dhcpv6'
// Other configuration

4.4.3.3 LTE

The default LTE module of this gateway is EG91
● Apn configuration file /etc/config/ppp

				
					root@DSGW090:/root# cat /etc/config/ppp
config ppp 'ppp'
  option apn 'em'
  option password ''
  option username ''

● Dial-up script configuration

				
					root@DSGW-010:~# ls /etc/ppp/peers/* -alh
-rwxr-xr-x 1 root root 359 Feb 27 2020 /etc/ppp/peers/dial
-rwxr-xr-x 1 root root 163 Feb 27 2020 /etc/ppp/peers/mo_3gmodule.dial

● By default, the gateway will start dialing when the network cable and wifi are not connected. You can manually start the script during debugging.

				
					/etc/init.d/netmge stop Stop the dial-up script
echo 0 > /sys/class/gpio/gpio40/value    Enable lte module
pppd call dial                           Start dialing

Modify the dial-up script front-end log
root@DSGW-010:~# cat /etc/ppp/options
debug                // remove #, open the debug mode
nodetach            // add this
#logfile /dev/null  // comment this line
noipdefault

root@DSGW-090:~# pppd call dial
timeout set to 3 seconds
send (ate0^M)
expect (OK)
^M
OK
-- got it
send (at^M)
expect (OK)
^M
^M
OK
-- got it
send (AT+CSQ^M)
expect (OK)
^M
^M
+CSQ: 99,99^M
^M
OK
-- got it
send (AT+COPS?^M)
expect (OK)
^M
^M
+COPS: 0^M
^M
OK
-- got it
send (AT+CREG?^M)
expect (OK)
^M
^M
+CREG: 0,0^M
^M
OK
-- got it
send (AT+CEREG?^M)
expect (OK)
^M
^M
+CEREG: 0,0^M
^M
OK
-- got it
send (AT+CPIN?^M)
expect (READY)

4.4.3.4 Button

The motherboard has a software button by default, which can be modified according to customer needs.

By default, pressing the button will call/etc/rc.button/BTN_0 script:
1. Short press and release to turn on the hotspot
2. Press and hold for 5 seconds and then release to restore the factory settings.

				
					#!/bin/sh
./lib/functions.sh
./lib/functions/leds.sh
if [ "${ACTION}" == "pressed" ];
then
    touch /tmp/BTN_0_pressed
    touch /tmp/btn1
else
    rm -f /tmp/BTN_0_pressed
fi

if [ -f /tmp/dusun_upgrade ] ; then
    exit 0
fi

[ ! "${ACTION}" == "released" ] && {
    exit 0
}

[ "$SEEN" -ge 5 ] && {
    logger "factory reset.."
    led_off zigbee
    led_off pwrled
    led_off errled
    led_timer zigbee 200 200
    led_timer pwrled 200 200
    led_timer errled 200 200
    logger "FACTORY RESET"
    #jffs2reset -y && reboot &
    firstboot -y && reboot &
    exit 0
}

[ "$SEEN" -ge 0 ] && {
    logger "Open Default Ap"
    uci set /etc/config/wireless.radio0.disabled=0; uci commit wireless;
    uci set /etc/config/wireless.ap0.hidden=0; uci commit wireless;
    #/etc/init.d/network restart;
    /etc/init.d/uhttpd restart
    Wi-Fi &
    exit 0
}

4.4.3.5 LED

4.4.3.5.1 LED on

				
					echo none > /sys/class/leds/pwrled/trigger
echo 1 > /sys/class/leds/pwrled/brightness

4.4.3.5.2 LED off

				
					echo none > /sys/class/leds/pwrled/trigger
echo 0 > /sys/class/leds/pwrled/brightness

4.4.3.5.3 LED flashing

				
					echo timer > /sys/class/leds/pwrled/trigger
echo 500 > /sys/class/leds/pwrled/delay_on
echo 500 >/sys/class/leds/pwrled/delay_off

4.4.3.6 Bluetooth

This board has a ble Bluetooth chip EFR32BG21, and the default ncp program is used
● By default, specific operations can be performed on the Bluetooth page of the luci page.

● If you want to debug the module manually, or write your own Bluetooth program, you need to stop the default Bluetooth program

				
					/etc/init.d/beacond stop; killall -9 bul; killall -9 hciattach;

● Get tty device

				
					find /sys/bus/usb/devices/1-1.4:1.0/ -name "ttyUSB*" -maxdepth 1
/dev/ttyUSB0 //Here it is assumed to be ttyUSB0, the actual value shall prevail

● Get the version

				
					/usr/bin/bflash -d /dev/ttyUSB0 -b115200 -r1

5. Relevant standards and certifications

5.1 Hazardous Substance Standards

5.1.1 ROHS

Chinese Standard: GB/T 26572-2011
EU Standard: Directive 2011/65/EU
Note: The components used in the current product comply with ROHS standards

5.1.2 REACH

EU Standard: EU Regulation (EC) No 1907/2006 (REACH)
Note: The components used in the current product comply with REACH standards.

5.2 Anti-vibration standard STA-2A

5.2.1 Vibration Standards

1	Random vibration test	1. Place 3 noodles on the platform for 30 minutes. 2. Place Noodle 1 on the platform for 10 minutes. 3. Place side 2 or side 4 on the platform for 10 minutes. 4. Place surface 5 or 6 on the platform for 10 minutes. 5. Frequency: 1…4…100…200 6. PSD: 0.0001…0.01…0.01…0.0001	There is no obvious damage to the box after the random vibration test
2	Fixed displacement test	Displacement: 25 mm Displacement times: 14200 ci	There is no obvious damage to the box after the displacement test
3	Sinusoidal vibration test (packaging)		1. The appearance, function and performance of the equipment under test meet the specifications of the relevant standards without obvious changes, and the functions of the equipment meet the requirements of Table 2. 2. Minor surface damage (such as scratches, nicks, etc.) of the sample meets the requirements. 3. Some parts of the sample (such as connectors) are allowed to have slight deformation, but this deformation cannot affect the mechanical and electrical properties of the device.
4	Sinusoidal vibration test (bare metal)		1. The appearance, function and performance of the equipment under test meet the specifications of the relevant standards without obvious changes, and the functions of the equipment meet the requirements of Table 2. 2. Minor surface damage (such as scratches, nicks, etc.) of the sample meets the requirements. 3. Some parts of the sample (such as connectors) are allowed to have slight deformation, but this deformation cannot affect the mechanical and electrical properties of the device.

5.2.2 Drop Standard

1	Package drop test	1. Wt< 10 Kg, drop 97 cm, 2. Wt:10 ~ 19 Kg, drop 81 cm, 3. 19 ~ 28 Kg, drop 66 cm, 4. Test standard: one corner, three sides, six faces, ten drops in total.	There is no obvious damage to the box after the drop test
2		1. Sample with normal function, no power supply 2. Drop mode: 6 sides, the drop sides are bottom, front, left, right, back and front in order; 3. Drop height a) Excluding display screen and optical engine products Free fall from a height of 100 cm onto a wooden floor no less than 3 cm thick b) Products containing display screens and optical engines Free fall from a height of 80cm onto a wooden floor no less than 3cm thick	1. The appearance, function and performance of the equipment under test meet the specifications of the relevant standards without obvious changes, and the functions of the equipment meet the requirements of Table 2. 2. Minor surface damage (such as scratches, nicks, etc.) of the sample meets the requirements. 3. Some parts of the sample (such as connectors) are allowed to have slight deformation, but this deformation cannot affect the mechanical and electrical properties of the device.
3	Drop (Packaging)		1. The appearance, function and performance of the equipment under test meet the specifications of the relevant standards without obvious changes, and the functions of the equipment meet the requirements of Table 2. 2. Minor surface damage (such as scratches, nicks, etc.) of the sample meets the requirements. 3. Some parts of the sample (such as connectors) are allowed to have slight deformation, but this deformation cannot affect the mechanical and electrical properties of the device.

5.3 EMC implementation standards

EU standards: EN55032:2015 + A11:2020 / EN55035:2017 + A11:2020 / ETSI EN 301489-1 V2.2.3 (2019-11) / ETSI EN 301489-X
Chinese Standard: GB/T 26572-2011
Note: The current product is designed strictly in accordance with EMC standards

5.4 Authentication Support

5.4.1 Proxy Client Authentication

The customer only needs to provide the application company information, and Dusun will be responsible for all the certification processes
The certification process is shown in the following example (CE certification):

5.4.2 Customer Self-Authentication

① Dusun provides certification related materials, the list of materials is as follows (contact the project leader, who will coordinate and organize the materials):
1. BOM list (all in English)
2. Body Label
3. Block diagram
4. Parts placement
5. PCB layout
6. Schematic diagram SCH
7. User manual
8. Antenna Specifications
9. List of key safety components (with safety component certificates, such as relays, fuses, terminal blocks, etc.)
10. PCB-UL certificate

② Dusun provides certification technical support (fixed frequency, safety regulations, EMC)
Contact the project leader, who will coordinate with relevant technical personnel to provide technical support

6. Order

6.1 Model Description

⚠️：Order sub-model and corresponding product description

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DSGW-090-Caregiving Nursing Bed IoT Gateway

1. Product Introduction

2. Installation Instructions

3. Hardware Instructions

4. Software Instructions

5. Relevant standards and certifications

6. Order

DSGW-210N Edge Computing Smart Gateway

DSGK-920 RK3399 Industrial Motherboard / Embedded Board

DSGW-089 i.MX8m Lift IIOT Edge Computing Gateway

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