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Dragino DDS75-NB NB-IoT Distance Detection Sensor

Dragino-DDS75-NB-NB-IoT-Distance-Detection-Sensor-PRODUCT

Impormasyon sa Produkto

Mga detalye

  • Kasagaran nga mga Kinaiya sa DC: NB-IoT Spec
  • NB-IoT Module: BC660K-GL
  • Suporta nga mga Band:
    • B1 @H-FDD: 2100MHz
    • B2 @H-FDD: 1900MHz
    • B3 @H-FDD: 1800MHz
    • B4 @H-FDD: 2100MHz
    • B5 @H-FDD: 860MHz
    • B8 @H-FDD: 900MHz
    • B12 @H-FDD: 720MHz
    • B13 @H-FDD: 740MHz
    • B17 @H-FDD: 730MHz
    • B18 @H-FDD: 870MHz
    • B19 @H-FDD: 870MHz
    • B20 @H-FDD: 790MHz
    • B25 @H-FDD: 1900MHz
    • B28 @H-FDD: 750MHz
    • B66 @H-FDD: 2000MHz
    • B70 @H-FDD: 2000MHz
    • B85 @H-FDD: 700MHz
  • Baterya: Li/SOCI2 unchargeable battery
    • Kapasidad: 8500mAh
    • Kaugalingon Discharge:

Mga Instruksyon sa Paggamit sa Produkto

Setting up the DDS75-NB NB-IoT Distance Detection Sensor

To set up the sensor, follow these steps:

  1. Insert the SIM card (if not built-in).
  2. Power on the sensor by pressing the power button.
  3. Connect to the desired IoT platform using one of the supported uplink methods (MQTT, MQTTs, UDP, TCP).

Pagsukod sa gilay-on
The sensor will detect the distance between the measured object and itself automatically once set up.

Pagdumala sa Baterya
The sensor is powered by an 8500mAh Li-SOCI2 battery designed for long-term use. To maximize battery life:

  • Likayi ang sobrang pag-charge sa baterya.
  • I-charge ang baterya sa hingpit sa wala pa gamiton.
  • Replace the battery when needed with a compatible battery type.

Mga Update sa Firmware
The sensor supports BLE configure and OTA update for easy firmware updates. Follow these steps to update the firmware:

  1. Ensure the sensor is connected to a stable network.
  2. Initiate the firmware update process through the IoT platform or BLE connection.
  3. Monitor the update progress and ensure it completes successfully.

Pasiuna

What is DDS75-NB NB-IoT Distance Detection Sensor
The Dragino DDS75-NB is a NB-IoT Distance Detection Sensor for Internet of Things solution. It is used to measure the distance between the sensor and a flat object. The distance detection sensor is a module that uses ultrasonic sensing technology for distance measurement, and temperature compensation is performed internally to improve the reliability of data. The DDS75-NB can be applied to scenarios such as horizontal distance measurement, liquid level measurement, parking management system, object proximity and presence detection, intelligent trash can management system, robot obstacle avoidance, automatic control,sewer, bottom water level monitoring, etc.

It detects the distance between the measured object and the sensor, and and send IoT platform via NB-IoT network.

  • DDS75-NB supports different uplink methods including MQTT, MQTTs, UDP & TCP for different application requirement, and support uplinks to various IoT Servers.
  • DDS75-NB supports BLE configure and OTA update which make user easy to use.
  • DDS75-NB is powered by 8500mAh Li-SOCI2 battery, it is designed for long-term use up to several years.
  • DDS75-NB has optional built-in SIM card and default IoT server connection version. Which makes it works with simple configuration.

Mga bahin

  • NB-IoT Bands: B1/B2/B3/B4/B5/B8/B12/B13/B17/B18/B19/B20/B25/B28/B66/B70/B85 @H-FDD
  • Ultra-ubos nga konsumo sa kuryente
  • Distance Detection pinaagi sa Ultrasonic nga teknolohiya
  • Sakup sa patag nga butang 280mm - 7500mm
  • Katukma: ±(1cm+S*0.3%) (S: Distansya)
  • Measure Angle: 40°
  • Multiply Sampling ug usa ka uplink
  • Support Bluetooth v5.1 remote configure and update firmware
  • Pag-uplink matag karon ug unya
  • Downlink aron usbon ang pag-configure
  • IP66 Waterproof Enclosure
  • 8500mAh Baterya alang sa dugay nga paggamit
  • Nano SIM card slot alang sa NB-IoT SIM

Espesipikasyon

Kasagaran nga mga Kinaiya sa DC:

  • Paghatag Voltage: 2.5v ~ 3.6v
  • Operating Temperatura: -40 ~ 85°C

NB-IoT Spec:
NB-IoT Module: BC660K-GL

Suporta nga mga Band:

  • B1 @H-FDD: 2100MHz
  • B2 @H-FDD: 1900MHz
  • B3 @H-FDD: 1800MHz
  • B4 @H-FDD: 2100MHz
  • B5 @H-FDD: 860MHz
  • B8 @H-FDD: 900MHz
  • B12 @H-FDD: 720MHz
  • B13 @H-FDD: 740MHz
  • B17 @H-FDD: 730MHz
  • B18 @H-FDD: 870MHz
  • B19 @H-FDD: 870MHz
  • B20 @H-FDD: 790MHz
  • B25 @H-FDD: 1900MHz
  • B28 @H-FDD: 750MHz
  • B66 @H-FDD: 2000MHz
  • B70 @H-FDD: 2000MHz
  • B85 @H-FDD: 700MHz

Baterya:

  • Li/SOCI2 dili ma-charge nga baterya
  • Kapasidad: 8500mAh
  • Kaugalingon Discharge: <1% / Tuig @ 25°C
  • Max padayon nga kasamtangan: 130mA
  • Max boost kasamtangan: 2A, 1 segundos

Pagkonsumo sa kuryente

  • STOP Mode: 10uA @ 3.3v
  • Max nga gahum sa pagpadala: 350mA@3.3v

Gi-rate nga mga kahimtang sa kalikopan

butang Minimum nga bili Kasagaran bili Maximum nga bili Unit Mga komento
Temperatura sa pagtipig -25 25 80  
Humidity sa pagtipig   65% 90% RH (1)
Operating temperatura -15 25 60  
Pagtrabaho humidity   65% 80% RH (1)

Remarks: (1)

  • Sa diha nga ang ambient temperatura mao ang 0-39 ℃, ang maximum humidity mao ang 90% (non-condensing);
  • Kung ang temperatura sa palibot 40-50 ℃, ang labing taas nga kaumog mao ang labing taas nga kaumog sa natural nga kalibutan sa karon nga temperatura (walay condensation)

Epektibo nga sakup sa pagsukod Reference beam pattern

  1. Ang gisulayan nga butang usa ka puti nga cylindrical tube nga hinimo sa PVC, nga adunay gitas-on nga 100cm ug usa ka diametro nga 7.5cm.Dragino-DDS75-NB-NB-IoT-Distance-Detection-Sensor-FIG- (1)
  2. Ang butang nga sulayan mao ang usa ka "corrugated cardboard box" nga patindog sa sentro nga axis sa 0 °, ug ang gitas-on * gilapdon 60cm * 50cm.

Dragino-DDS75-NB-NB-IoT-Distance-Detection-Sensor-FIG- (2)

Mga aplikasyon

  • Horizontal nga pagsukod sa gilay-on
  • Pagsukod sa lebel sa likido
  • Sistema sa pagdumala sa parking
  • Ang kaduol sa butang ug pagkakita sa presensya
  • Intelihenteng sistema sa pagdumala sa basurahan
  • Paglikay sa babag sa robot
  • Awtomatikong pagkontrol
  • Imburnal
  • Pag-monitor sa lebel sa tubig sa ilawom

Sleep mode ug working mode

Deep Sleep Mode: Sensor doesn’t have any NB-IoT activate. This mode is used for storage and shipping to save battery life

Mode sa pagtrabaho: In this mode, Sensor will work as NB-IoT Sensor to Join NB-IoT network and send out sensor data to server. Between each sampling/tx/rx matag karon ug unya, ang sensor anaa sa IDLE mode), sa IDLE mode, ang sensor adunay parehas nga konsumo sa kuryente sama sa Deep Sleep mode.

Butang ug LED

Dragino-DDS75-NB-NB-IoT-Distance-Detection-Sensor-FIG- (3)

Behavior on ACT Kalihokan Aksyon
Dragino-DDS75-NB-NB-IoT-Distance-Detection-Sensor-FIG- (4) Send an uplink If sensor has already attached to NB-IoT network, sensor will send an uplink packet, asul nga led mokidlap kausa.

Meanwhile, BLE module will be active and user can connect via BLE to configure device.

Dragino-DDS75-NB-NB-IoT-Distance-Detection-Sensor-FIG- (5) Aktibo nga Device Green nga gipangulohan paspas nga blink 5 ka beses, ang aparato mosulod OTA mode for 3 seconds. And then start to attach NB-IoT network.

Once sensor is active, BLE module will be ac- tive and user can connect via BLE to configure device, no matter if device attach NB-IoT net- work or not.

Dragino-DDS75-NB-NB-IoT-Distance-Detection-Sensor-FIG- (6) Deactivate Device Pula nga gipangulohan will solid on for 5 seconds. Means de- vice is in Deep Sleep Mode.

Mubo nga sulat: Kung ang aparato nagpatuman sa usa ka programa, ang mga buton mahimong dili balido. Labing maayo nga ipadayon ang mga buton pagkahuman makompleto sa aparato ang pagpatuman sa programa.

BLE nga koneksyon
DDS75-NB support BLE remote configure and firmware update.

Ang BLE mahimong magamit aron ma-configure ang parameter sa sensor o makita ang output sa console gikan sa sensor. Ang BLE ma-activate ra sa ubos nga kaso:

  • Pindota ang buton para magpadala ug uplink
  • Pindota ang buton sa aktibo nga device.
  • Gi-on o i-reset ang Device.

Kung wala’y koneksyon sa kalihokan sa BLE sa 60 segundos, isira sa sensor ang BLE module aron makasulod sa low power mode.

Mga Kahulugan sa Pin, Pagbalhin ug Direksyon sa SIM

Dragino-DDS75-NB-NB-IoT-Distance-Detection-Sensor-FIG- (7)

Jumper JP2
Gahum sa Device kung ibutang kini nga jumper.

BOOT MODE / SW1

  1. ISP: upgrade mode, device walay signal niini nga mode. apan andam alang sa pag-upgrade sa firmware. Ang LED dili molihok. Ang firmware dili modagan.
  2. Flash: work mode, ang device magsugod sa pagtrabaho ug ipadala ang console output para sa dugang debug

I-reset ang Butang
Pindota aron i-reboot ang device.

Direksyon sa SIM Card
See this link. How to insert SIM Card .

Mekanikal

Dragino-DDS75-NB-NB-IoT-Distance-Detection-Sensor-FIG- (8)

Mekanikal nga Probe:

Dragino-DDS75-NB-NB-IoT-Distance-Detection-Sensor-FIG- (9)

Use DDS75-NB to communicate with IoT Server

Ipadala ang data sa IoT server pinaagi sa NB-IoT network
The DDS75-NB is equipped with a NB-IoT module, the pre-loaded firmware in DDS75-NB will get environment data from sensors and send the value to local NB-IoT network via the NB-IoT module. The NB-IoT network will forward this value to IoT server via the protocol defined by DDS75-NB.

Sa ubos nagpakita sa istruktura sa network:
There are two version: -GE and -1T version of DDS75-NB.

GE Bersyon: This version doesn’t include SIM card or point to any IoT server. User needs to use AT Commands to configure below two steps to set DDS75-NB send data to IoT server.
Install NB-IoT SIM card and configure APN. See instruction of Attach Network .

Set up sensor to point to IoT Server. See instruction of Configure to Connect Different Servers . Below shows result of different server as a glance.

Dragino-DDS75-NB-NB-IoT-Distance-Detection-Sensor-FIG- (10)

1T Version: This version has 1NCE SIM card pre-installed and configure to send value to ThingsEye. User Just need to select the sensor type in ThingsEyeand Activate DDS75-NB and user will be able to see data in ThingsEye. See here for ThingsEye Config Instruction .

Mga Uri sa Payload
To meet different server requirement, DDS75-NB supports different payload type.

Naglakip sa:

  • Kinatibuk-ang JSON format payload. (Type=5)
  • HEX format nga Payload. (Type=0)
  • Format sa ThingSpeak. (Type=1)
  • Format sa ThingsBoard. (Type=3)

Mahimong ipiho sa user ang tipo sa payload kung pilion ang protocol sa koneksyon. Example:

  • AT+PRO=1,0 // Use COAP Connection & hex Payload
  • AT+PRO=1,5 // Use COAP Connection & Json Payload
  • AT+PRO=2,0 // Gamita ang UDP Connection ug hex Payload
  • AT+PRO=2,5 // Gamita ang UDP Connection & Json Payload
  • AT+PRO=3,0 // Gamita ang MQTT Connection ug hex Payload
  • AT+PRO=3,5 // Gamita ang MQTT Connection & Json Payload
  • AT+PRO=4,0 // Gamita ang TCP Connection ug hex Payload
  • AT+PRO=4,5 // Gamita ang TCP Connection ug Json Payload

General Json Format(Type=5)

This is the General Json Format. As below:

{“IMEI”:”863663062798914″,”IMSI”:”460083513507314″,”Model”:”DDS75-NB”,”distance”:1752,”interrupt”:0,”interrupt_level”:0,”battery”:3.29,”signal”:17,”time”:”2024/11/21 08:31:30″,”1″:[2109,”2024/11/21 08:04:46″],”2″:[1015,”2024/11/21 07:49:45″],”3″:[1118,”2024/11/21 07:34:46″],”4″:[0,”2024/11/21 05:26:12″],”5″:[0,”2024/11/21 05:11:12″],”6″:[0,”2024/11/21 04:56:12″],”7″: [0,”2024/11/21 04:41:12″],”8″:[0,”2024/11/21 04:26:12″]}

Dragino-DDS75-NB-NB-IoT-Distance-Detection-Sensor-FIG- (11)

Matikdi, gikan sa ibabaw nga payload:
Distance , Battery, Signal & time are the value at uplink time.
Json entry 1 ~ 8 mao ang katapusang 1 ~ 8 sampling data as specify by AT+CLOCKLOG=1,65535,15,8 Command. Each entry includes (from left to right): Temperature,Humidity, Sampling panahon.

HEX format nga Payload(Type=0)

This is the HEX Format. As below: f863663062798914f46008351350731409820ce81101000008d1673ef0a1083d673ee99e03f7673ee619045e673e

Dragino-DDS75-NB-NB-IoT-Distance-Detection-Sensor-FIG- (12)

Kung gigamit namon ang kliyente sa MQTT aron mag-subscribe sa kini nga hilisgutan sa MQTT, makita namon ang mosunod nga kasayuran kung ang data sa NB sensor uplink.

Dragino-DDS75-NB-NB-IoT-Distance-Detection-Sensor-FIG- (13)

Device ID(f+IMEI): f863663062798914 = 863663062798914
SIM Card ID(f+IMSI): f460083513507314 = 460083513507314

Bersyon:
Kini nga mga byte naglakip sa hardware ug software nga bersyon.
Higher byte: Specify Sensor Model: 0x09 for DDS75-NB
Lower byte: Specify the software version: 0x82=130, means firmware version 1.3.0

BAT (Impormasyon sa Baterya):
Ex1: 0x0D38 = 3384mV

Kusog sa Signal:
Kusog sa signal sa NB-IoT Network.

Ex1: 0x13 = 19

  • 0 -113dBm or less 1 -111dBm
  • 2…30 -109dBm… -53dBm
  • 31 -51dBm o labaw pa
  • 99 Wala mailhi o dili makit-an

Interrupt:
If this packet is generated by interrupt or not.

Example:

  • 0x00: Normal nga uplink packet.
  • 0x01: Interrupt Uplink Packet.

Interrupt_level:
This byte shows whether the interrupt is triggered by a high or low level.

  • Ex1: 0x00 Interrupt triggered by falling edge (low level)
  • Ex2: 0x01 Interrupt triggered by rising edge (high level)

gilay-on:
Kuhaa ang gilay-on. Sakup sa patag nga butang 280mm - 7500mm.
Kay example, kung ang datos nga imong makuha gikan sa rehistro mao ang 0x0B 0x05, ang gilay-on tali sa sensor ug sa gisukod nga butang mao ang
0B05(H) = 2821 (D) = 2821 mm.
Kung ang kantidad sa sensor 0x0000, kini nagpasabut nga ang sistema wala makamatikod sa ultrasonic sensor.

Takdang panahonamp:
Unit Timestamp Example: 6653ddb4(H) = 1716772276(D)
Ibutang ang decimal nga bili niini nga link(https://www.epochconverter.com) ) to get the time.

ThingsBoard Payload(Type=3)
Type3 payload special design for ThingsBoard, it will also configure other default server to ThingsBoard.
{
“topic”: “2276492”,
“payload”: {
"IMEI": "863663062798914",
“Model”: “DDS75-NB”,
“distance”: 347,
“interrupt”: 0,
“interrupt_level”: 0,
"baterya": 3.38,
“signal”: 15,
“1”: [347, “2024/05/27 01:26:21”],
“2”: [250, “2024/05/27 00:57:17”],
“3”: [250, “2024/05/27 00:42:17”],
“4”: [250, “2024/05/27 00:27:17”],
“5”: [250, “2024/05/27 00:12:17”],
“6”: [250, “2024/05/26 23:57:17”],
“7”: [250, “2024/05/26 23:42:17”],
“8”: [250, “2024/05/26 23:27:16”] }
}

Dragino-DDS75-NB-NB-IoT-Distance-Detection-Sensor-FIG- (14)

ThingSpeak Payload(Type=1)

This payload meets ThingSpeak platform requirement. It includes only four fields. Form 1~3 are:
Distance, Battery & Signal. This payload type only valid for ThingsSpeak Platform.

Sama sa ubos:
field1=Distance value&field2=Battery value&field3=Signal value

Dragino-DDS75-NB-NB-IoT-Distance-Detection-Sensor-FIG- (15)

Sulayi ang Uplink ug Usba ang Update Interval

By default, Sensor will send uplinks every 2 hours
User can use below commands to change the uplink interval.

AT command: AT+TDC

  • Example: AT+TDC=7200 // Set Update Interval to 7200 seconds
  • Downlink command: 0x01
  • Format: Command Code (0x01) nga gisundan sa 3 bytes.
  • Example: 12 hours= 43200 seconds 43200(D)=0xA8C0(H)
  • Downlink Payload: 01 00 A8 C0 // AT+TDC=43200, Set Update Interval to 12 hours.

Mubo nga sulat: Mahimo usab nga iduso sa user ang buton nga sobra sa 1 segundos aron ma-aktibo ang usa ka uplink.

Daghang-Samplings ug Usa ka uplink

Pahibalo: The AT+NOUD feature is upgraded to Clock Logging, please refer Clock Logging Feature
To save battery life, DDS75-NB will sample distance data every 15 minutes and send one uplink every 2 hours.

So each uplink it will include 8 stored data + 1 real-time data. They are defined by:

  • AT+TR=900 // Ang yunit segundos, ug ang default mao ang pagrekord sa datos kausa matag 900 segundos (15 minuto, ang minimum mahimong itakda sa 180 segundos)
  • AT+NOUD=8 // Ang device nag-upload ug 8 ka sets sa recorded data nga default. Hangtod sa 32 ka set sa record data mahimong ma-upload.

Ang dayagram sa ubos nagpatin-aw sa relasyon tali sa TR, NOUD, ug TDC nga mas klaro:

Dragino-DDS75-NB-NB-IoT-Distance-Detection-Sensor-FIG- (16)

Trggier usa ka uplink pinaagi sa external interrupt
DDS75-NB has an external trigger interrupt function. Users can use the GPIO_EXTI pin to trigger the upload of data packets.

AT sugo:

  • AT+INTMOD // Ibutang ang trigger interrupt mode
  • AT+INTMOD=0 // Disable Interrupt
  • AT+INTMOD=1 // Pag-trigger pinaagi sa pagtaas ug pagkahulog sa ngilit
  • AT+INTMOD=2 // Pag-trigger pinaagi sa nahulog nga ngilit
  • AT+INTMOD=3 // Pag-trigger pinaagi sa pagtaas sa ngilit

Distance Alarm

Feature: Set alarm of LDDS and NMDS.
AT command: AT+LDDSALARM (Range:280mm – 7500mm)

Example: AT+LDDSALARM=500,2000 // Set the alarm threshold
Downlink command: 0X08
Format: Command Code (0x08) nga gisundan sa 4 bytes.
Example: Downlink Payload: 08 01 F4 07 D0 //AT+LDDSALARM=500,2000

Pag-log sa orasan (Sukad sa bersyon sa firmware v1.2.1)
Usahay kung mag-deploy kami daghang mga end node sa uma. Gusto namon ang tanan nga mga sensor sample data at the same time, and upload these data together for analyze. In such case, we can use clock loging feature.
We can use this command to set the start time of data recording and the time interval to meet the requirements of the specific collection time of data.

AT command: AT+CLOCKLOG=a,b,c,d

  • a: 0: I-disable ang Clock logging. 1: I-enable ang Clock Logging
  • b: Ipiho ang Unang sampling pagsugod ikaduha: range (0 ~ 3599, 65535) // Pahinumdom: Kung ang parameter b gibutang sa 65535, ang log period magsugod human ang node maka-access sa network ug magpadala sa mga packet.
  • c: Ipiho ang sampling interval: range (0 ~ 255 ka minuto)
  • d: Pila ka mga entry ang kinahanglan nga uplink sa matag TDC (max 32)

Mubo nga sulat: To disable clock recording, set the following parameters: AT+CLOCKLOG=1,65535,0,0

Example: AT +CLOCKLOG=1,0,15,8
Device will log data to memory start from the 0* second (11:00 00″ of first hour and then sampling and log every 15 minutes.Every TDC uplink, the uplink payload will consist: Battery info + last 8 memory record with timestamp + ang pinakabag-o nga sampsa oras sa uplink). Tan-awa sa ubos ang example.

Dragino-DDS75-NB-NB-IoT-Distance-Detection-Sensor-FIG- (17)

AT+CLOCKLOG=1,65535,1,5
Human ipadala sa node ang unang pakete, ang data irekord sa memorya sa mga agwat sa 1 ka minuto. Sa matag TDC uplink, ang uplink load maglakip sa: impormasyon sa baterya + ang katapusang 5 ka rekord sa memorya (payload + timestamp).

Dragino-DDS75-NB-NB-IoT-Distance-Detection-Sensor-FIG- (18)

Mubo nga sulat: Users need to synchronize the server time before configuring this command. If the server time is not synchronized before this command is configured, the command takes effect only after the node is reset.

  • Downlink command: 0x0A

Format: Command Code (0x0A) nga gisundan sa 5 bytes.

  • Example 1: Downlink Payload: 0A01FFFF0F08
    // Set SHT record time: AT+CLOCKLOG=1,65535,15,8
  • Example 1: Downlink Payload: 0A0104B00F08
    // Set SHT record time:
    AT+CLOCKLOG=1,1200,15,8

Mubo nga sulat: When entering the downlink payload, there must be no Spaces between bytes.

ExampGitipigan sa le Query ang mga rekord sa kasaysayan

  • AT sugo: AT+CDP

Kini nga sugo mahimong gamiton sa pagpangita sa naluwas nga kasaysayan, pagrekord sa 32 ka grupo sa datos, ang matag grupo sa makasaysayanong datos naglangkob sa maximum nga 100 bytes.

Dragino-DDS75-NB-NB-IoT-Distance-Detection-Sensor-FIG- (19)

Uplink log pangutana

  • AT sugo: AT+GETLOG

Kini nga sugo mahimong gamiton sa pagpangutana sa upstream logs sa data packets.

Dragino-DDS75-NB-NB-IoT-Distance-Detection-Sensor-FIG- (20)

Naka-iskedyul nga resolusyon sa ngalan sa domain
This command is used to set up scheduled domain name resolution.

AT sugo:

  • AT+DNSTIMER=XX // Yunit: oras

Human sa pagpahimutang niini nga sugo, ang resolusyon sa ngalan sa domain ipahigayon kanunay.

Set the QoS level
This command is used to set the QoS level of MQTT.

AT sugo:

  • AT+MQOS=xx // 0~2

Downlink command: 0x07

  • Format: Command Code (0x07) followed by 1 byte.
  • Ex1: Downlink payload: 0x0700 //AT+MQOS=0
  • Ex2: Downlink payload: 0x0701 //AT+MQOS=1

Set CoAP option
This command sets the connection parameters of the COAP.

AT sugo:

  • AT+URI1 // CoAP option name, CoAP option length, “CoAP option value”
  • AT+URI2 // CoAP option name, CoAP option length, “CoAP option value”
  • AT+URI3 // CoAP option name, CoAP option length, “CoAP option value”
  • AT+URI4 // CoAP option name, CoAP option length, “CoAP option value”

Example:

  • AT+URI1=11,38,”i/faaa241f-af4a-b780-4468-c671bb574858″

Set the downlink debugging mode(Since firmware v1.3.0)
Feature: Set the conversion between the standard version and 1T version downlinks.

AT sugo: AT+DOWNTE

Sugo Example Function/Parameters Response/Explanation
AT+DOWNTE=? Get current Settings 0,0 (default) OK
AT+DOWNTE=a,b a: Set the conversion between the downlink of the standard version and 1T version 0: Set the downlink of the standard version. 1: Set the downlink of the 1T version(ThingsEye platform)
b: Enable/Disable downlink debugging 0: Disable downlink debugging mode.

1: Enable downlink debugging mode, users can see the original downlink reception.

Example:
AT+DOWNTE=0,1 // Set to standard version downlink, and enable downlink debugging.
AT+DOWNTE=1,1 // Set to 1T version downlink, and enable downlink debugging.

Downlink Command:
No downlink commands for feature

Domain name resolution settings(Since firmware v1.3.0)

Feature: Set dynamic domain name resolution IP.

AT sugo: AT+BKDNS

Sugo Example Function/Parameters Response/Explanation
AT+BKDNS=? Get current Settings 0,0,NULL (default) OK
 

 AT+BKDNS=a,b,c

a: Enable/Disable dynamic do- main name resolution. 1: Disable dynamic domain name update. The ip address will be saved after the domain name is resolved, if the next domain name resolution fails, the last saved ip address will be used.

2: Enable dynamic domain name update. The ip address will be saved after domain name resolution, if the next domain name resolution fails, the last saved ip address will be used, and the domain name resolution will be up- dated regularly according to the time set by the customer.

b: Set the time to update the domain name resolution at reg- ular intervals. Unit: hour
c: Set the IP address manually. The format is the same as AT+SERVADDR.

If domain name resolution fails, this ip address will be used directly, if domain name resolution succeeds, parameter c will be updated to the successfully resolved IP address.

Example:

  • AT+BKDNS=1,0 // Dynamic domain name resolution is disabled.
  • AT+BKDNS=2,1 // The dynamic domain name resolution function is enabled and the automatic update time is set to 1 hour.
  • AT+BKDNS=2,4,3.69.98.183,1883 // The dynamic domain name resolution function is enabled and the automatic update time is set to 4 hour, and manually set the ip address, if the domain name failed to resolve, it will directly use this ip to communicate.

When the next domain name resolution is successful, it will be updated to the ip address of the successful resolution.

Downlink Command:
No downlink commands for feature

Configure DDS75-NB

I-configure ang mga Pamaagi
DDS75-NB supports below configure method:

AT Command via Bluetooth Connection (Recommended): BLE Configure Instruction .
AT Command via UART Connection : See UART Connection .

Serial Access Password
After the Bluetooth or UART connection is successful, use the Serial Access Password to enter the AT command window.

The label on the box of the node will print the initial password: AT+PIN=xxxxxx, and directly use the six-digit password to access the AT instruction window.

Dragino-DDS75-NB-NB-IoT-Distance-Detection-Sensor-FIG- (21)

If you need to change the password, use AT+PWORD=xxxxxx (6 characters), NB nodes only support lowercase letters.

Dragino-DDS75-NB-NB-IoT-Distance-Detection-Sensor-FIG- (22)

Mubo nga sulat: After entering the command, you need to add a line break, and you can also set automatic line breaks in the Bluetooth tool or UART connection tool.

Dragino-DDS75-NB-NB-IoT-Distance-Detection-Sensor-FIG- (23)

Mga AT Command Set

  • AT+ ? : Tabang sa
  • AT+ : Dagan
  • AT+ = : Ibutang ang bili
  • AT+ =? : Kuhaa ang bili

Kinatibuk-ang mga Sugo

  • AT: Attention
  • SA? : Mubo nga Tabang
  • ATZ: MCU Reset
  • AT+TDC: Application Data Transmission Interval
  • AT+CFG: Print all configurations
  • AT+CFGMOD: Working mode selection
  • AT+DEUI: Get or set the Device ID
  • AT+INTMOD: Set the trigger interrupt mode
  • AT+5VT: Set extend the time of 5V power
  • AT+PRO: Choose agreement
  • AT+RXDL: Extend the sending and receiving time
  • AT+DNSCFG: Get or Set DNS Server
  • AT+GETSENSORVALUE: Ibalik ang kasamtangang sukod sa sensor
  • AT+NOUD: Get or Set the number of data to be uploaded
  • AT+CDP: Read or Clear cached data
  • AT+SERVADDR: Server Address

Pagdumala sa MQTT

  • AT+CLIENT: Get or Set MQTT client
  • AT+UNAME: Get or Set MQTT Username
  • AT+PWD: Get or Set MQTT password
  • AT+PUBTOPIC: Get or Set MQTT publish topic
  • AT+SUBTOPIC: Get or Set MQTT subscription topic

Impormasyon

  • AT+FDR: Factory Data Reset
  • AT+PWORD: Serial Access Password
  • AT+LDATA: Get the last upload data
  • AT+CDP: Read or Clear cached data

Pagkonsumo sa Baterya ug Gahum

DDS75-NB use ER26500 + SPC1520 battery pack. See link below for detail information about the battery info and how to replace.
Impormasyon sa Baterya ug Pag-analisar sa Pagkonsumo sa Gahum .

Pag-update sa firmware

User can change device firmware to:

  • Pag-update gamit ang bag-ong mga bahin.
  • Ayuhon ang mga bug.

Firmware and changelog can be downloaded from : Firmware download link

Mga Pamaagi sa Pag-update sa Firmware:

  • (Recommended way) OTA firmware update via BLE: Instruction .
  • Update through UART TTL interface: Instruction .

Pagsulbad sa Kasamok

Ngano nga ang pagbasa sa sensor nagpakita sa 0 o "Walay sensor"

  1. Ang butang nga pagsukod duol kaayo sa sensor, apan sa buta nga lugar sa sensor.
  2. Ang mga wiring sa sensor gitangtang
  3. Dili gamit ang saktong decoder

Abnormal readings The gap between multiple readings is too large or the gap between the readings and the actual value is too large.

  1. Please check if there is something on the probe affecting its measurement (condensed water, volatile oil, etc.)
  2. Does it change with temperature, temperature will affect its measurement
  3. If abnormal data occurs, you can turn on DEBUG mode, Please use downlink or AT COMMAN to enter DEBUG mode.downlink command: F1 01, AT command: AT+DDEBUG=1
  4. Human sa pagsulod sa debug mode, kini magpadala 20 ka piraso sa data sa usa ka higayon, ug mahimo nimo ipadala ang uplink niini kanamo para sa pagtuki.

Ang orihinal nga kargamento niini mas taas kaysa ubang datos. Bisan kung kini gi-parse, makita nga kini usa ka abnormal nga datos.
Palihug ipadala ang data kanamo para sa pagsusi.

Impormasyon sa Pag-order

Part Number: DDS75-NB-XX

XX:

  • GE: Kinatibuk-ang bersyon (Dili iapil ang SIM card)
  • 1T: with 1NCE * 10 years 500MB SIM card and Pre-configure to ThingsEye server

Impormasyon sa Pagputos

Ang package naglakip sa:

  • DDS75-NB NB-IoT Distance Detection sensor x 1
  • Gawas nga antena x 1
  • Dimensyon ug gibug-aton:
  • Gidak-on sa Device: 13.0 x 5 x 4.5 cm
  • Timbang sa Device: 150g
  • Package Size / pcs: 14.0 x 8x 5 cm
  • Weight / pcs: 180g

Suporta

  • Ang suporta gihatag Lunes hangtod Biyernes, gikan sa 09:00 hangtod 18:00 GMT+8. Tungod sa lain-laing mga timezone dili kami makatanyag ug live nga suporta. Bisan pa, ang imong mga pangutana matubag sa labing madali nga panahon sa nahisgutan nga iskedyul.
  • Paghatag og daghang impormasyon kutob sa mahimo mahitungod sa imong pangutana (mga modelo sa produkto, tukma nga paghulagway sa imong problema ug mga lakang sa pagsundog niini ug uban pa) ug ipadala ang usa ka mail sa Support@dragino.cc .

FAQ

Unsa ka dugay ang baterya sa usa ka bug-os nga bayad?

The 8500mAh Li-SOCI2 battery can last several years on a full charge under normal usage conditions.

Can I change the default IoT server connection settings?

Yes, you can configure the IoT server connection settings to connect to a different server if needed. Refer to the user manual for detailed instructions on changing server settings.

Unsaon nako pag-access ang t BC660K-GL AT Commands?

Ang user mahimong maka-access sa BC660K-GL direkta ug magpadala sa AT Commands. Tan-awa ang BC660K-GL AT Command set

Can I use DDS75-NB in condensation environment?

DDS75-NB is not suitable to be used in condensation environment. Condensation on the DDS75-NB probe will affect the reading and always got 0.

How to configure the certificate?

User can can refer to this description to configure the certificate.

Mga Dokumento / Mga Kapanguhaan

Dragino DDS75-NB NB-IoT Distance Detection Sensor [pdf] Manwal sa Gumagamit
DDS75-NB NB-IoT Distance Detection Sensor, DDS75-NB, NB-IoT Distance Detection Sensor, Distance Detection Sensor, Detection Sensor

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