Micro power consumption and high temperature resistance NB-IOT.

 

1 Product Overview



SC-LP-PTNB is a high temperature resistant wireless temperature and pressure sensor terminal developed by Shanghai Shucai IoT Technology Co., Ltd. It is mainly used for temperature and pressure measurement of high temperature pipelines. It can report data to the designated platform server wirelessly at regular intervals.

The terminal adopts GPRS/NB-IOT/LoRa communication mode to overcome the wireless communication obstruction caused by the special environment on site, greatly simplifying the on-site deployment time and reducing construction costs . The working status of the equipment is divided into three states: sleep, collection and storage, and activation and reporting.

2 Ordering specifications and selection

model

Features

SC-LP- PTNB

SC-LP -PTLoRa

Battery powered, suitable for occasions with low acquisition frequency and difficulty in external power supply. NB-IOT/LoRa transmission mode.

3 Service Concept

Our company solemnly promises:

You buy not only the product, but also the meticulous and thoughtful technical support service ! ! ! ( =^_^= )

This product only needs ordinary workers to connect the power and install it on site! No debugging is required!

We provide free remote guidance, remote configuration and debugging services, and send data to the user's designated cloud platform.

Free IoT solution consulting services!

4 Product Features

4.1 Acquisition characteristics

Collection type: pressure, temperature

Measuring range: 0-2.5mpa , -50-500 ℃ (other measuring ranges can be customized)

Collection frequency: 1 minute ~ 24 hours, support remote configuration

Accuracy grade: ± 2 %

Maximum input: 100% (continuous) / 150% (1 minute)

4.2 Electrical Characteristics

Power supply: battery powered/12V

Battery capacity: 3.6V*19Ah

Standby power consumption: less than 5uA@3.6V

Working power consumption: 2 ~ 3mA@3.6V

Transmitting power consumption: 50 ~ 100mA@3.6VV

4.3 Communication characteristics

Antenna type: built-in antenna

Transmission mode: 4G /NB-IOT/LoRa

Communication protocol: mqtt/ http post active push

Data forwarding: any public network server

Data reporting method : 1. Report when the collected temperature and pressure fluctuations are ≥ the set value; 2. Report the current measurement value at the set interval

4.4 Structural characteristics

Material: PC plastic (shell)

Main protection level: IP65

Main body size: 120mm×78mm×50mm

Transformer probe structure: threaded

Main installation method: wall hanging or screw fastening

Transformer probe installation method: plug-in installation

4.5 Work Environment

Temperature -25°C ~ 75°C, humidity 0 ~ 95% (non-condensing)

5 Micro power operation mode

The wireless temperature and pressure sensor terminal achieves power saving by working intermittently. The device is in standby mode most of the time, and only a very small part of the circuit continues to work to maintain micro-power consumption. This part of the circuit will ensure the correct operation of the system time and the correct recording of the next activation time.

Calculation of daily power consumption of the device : The daily working state is divided into: standby state and working state (waking up to collect data and uploading data via 4G /NB-IOT ), corresponding to the power consumption data of different states

6 Core advantages of products

Ø Comes with its own battery, no wiring required

Ø Simple installation and quick deployment help IoT projects to be implemented quickly

Ø Support any IoT cloud platform and provide data connection

Ø The whole machine is waterproof and moisture-proof to meet the working requirements in harsh environments

Ø Support remote configuration to minimize on-site maintenance costs

7 Data reporting communication protocol

7.1 Protocol analysis instructions

HTTP post push method, users need to provide http data receiving URL to receive data.

Example of a data message in JSON format:
{"serviceId":"UpdataToDev","serviceData":"{\"VoltageCur\": 372 ,\"TmpWidth\":30,\"TimePeriod\": 20 ,\"MinCntSet\": 12 ,\"IntData3\":877,\"IntData2\":0,\"IntData1\":140,\"InfoId\":1,\"ICCID\":\" 1120288018165436 \",\"Extend2\":251,\"Extend1\":17}"}

Message analysis:

{

    "VoltageCur" : 372 , //Battery voltage, 372 represents 3.72 V​​

    "TmpWidth" : 30 , //Used to set the temperature hysteresis, unit 0.1 ℃ , for example, set 30 to 3 ℃ , and report data when the current changes by more than 3 ℃

    "TimePeriod" : 20 , // Collection period, the range of the collection period can be set to 1-255s, and the collection is done every fixed T

    "MinCntSet" : 12 , //Forced upload time, unit 5min, default 48, i.e. 48*5=240min=4 hours (with a certain error)

    "IntData3" : -9999 , //Reserve data field, invalid

    "IntData2" : 0 , // pressure value, relative pressure, 0 is the pressure value under normal environment

    "IntData1" : 140 , // temperature value, unit 0.1 ℃ , for example, 140 is 14 ℃

    "InfoId" : 1 , //Reserved field, fixed to 1

    "ICCID" : "1120288018165436" , //ID number

    "Extend2" : 251 , // represents the cumulative number of sensor reports

    "Extend1" : 17 //Signal strength

}

 

7.2 Protocol connection test

You can use postman to debug.

 

7.3 Protocol customization

If you need to customize other docking protocols, such as MQTT, docking configuration software, etc., you can contact the business personnel for communication.

8 Platform docking

8.1 Platform data display

The product can be connected to our company's designated open industrial Internet of Things platform when it leaves the factory. The platform interface is as follows:

Uploading: 621242 of 621242 bytes uploaded.


Computer browser interface



WeChat access interface on mobile phone

8.2 User-specified platform

The default connection is to the Telecom IoT platform. Other platforms can be customized.

9 Application Cases

 



By monitoring the changes in pressure and temperature, the steam pipeline can be monitored for leaks. Near the leak location, the pressure and temperature will drop significantly.

10 Precautions

(1) This product has a built-in SIM card, and the annual traffic fee is approximately 10 to 20 yuan depending on the frequency of reported data.

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