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ST11 Asset Management Tag

1. Product Introduction

1.1 Product Description

ST11TN/ST11NN is a wireless tag sensor used for asset management, which can implement timing sampling, upload temperature and ID information to the monitoring platform, and support LoRaWAN and LinkWAN protocols. Users can set the sampling and reporting cycle through the platform. The default setting is to upload temperature and humidity information to the platform every 1800 minutes.

The application platform can realize online management of assets in controllable areas by counting the online time and packet loss rate of asset tags. Periodic temperature measurement can realize temperature monitoring of Cargo piles or other application scenarios, thus ensuring the safety of goods.

ST11TN has built-in temperature sensor and ST11NN does not have temperature sensor. For detailed differences, see Product parameters and function description.

1.2 Application fields

  • Logistics storage, Warehouse
  • Logistics Cargo temperature monitoring
  • Data center and service data center
  • Unattended factories and workshops
  • Smart home, smart agriculture, smart buildings

1.3 Main features

  • The temperature measuring chip is integrated inside, which can accurately measure the temperature of the environment(ST11TN).
  • It has alarm functions such as low battery voltage and equipment failure.
  • Allows you to configure parameters for downstream data.
  • The wireless transmission part adopts LoRa modulation mode, which can realize the advantages of long transmission distance, low standby power consumption, etc.
  • The battery adopts lithium battery with high energy density, which can guarantee the working life of the product for 5 years (the upload cycle is 1800 minutes)
  • Outdoor transmission distance 2-3km

2. Product parameters

2.1 Exterior


2.2 Model description

The ST11 series device are divided into two models. One built-in temperature sensor can regularly monitor the temperature of the tested environment. The model is ST11TN series, one is that the model of the sensor that only uploads heartbeat information without a temperature sensor is ST11NN series.

2.2.1 ST11TN

The built-in temperature sensor can monitor the ambient temperature and support periodic heartbeat function and battery power monitoring function. The heartbeat period and temperature sampling period can be modified through the Server.

2.2.2 ST11NN

No internal temperature sensor, supports periodic heartbeat and battery power monitoring functions, heartbeat period can be modified by the Server.

2.3 Electrical parameters

Operating voltage

1.8~3.6V

Operating temperature

-40℃ ~ 85℃

Working humidity

0%~90%RH

Emission current

<120mA @ 100mW (impedance matching)

Received Current

<13mA

Standby current

<5uA

2.4 RF parameters

Frequency range

470-510MHz863-928 MHz (optional)

Transmit power

19 ± 0.5dBm

Receiving sensitivity

<-139dBm @292bps

Antenna Type

Internal or external antenna (optional)

Data transmission rate

1.8kbps~5.4kbps

Modulation mode

LoRa

Supported LoRaWAN bands

CN470-510EU863-870AU915-928AS923

Supported LinkWAN bands

CN470AS923

2.5 Technical indicators

Temperature measurement range

-40 ~ 85℃

Measurement accuracy

± 0.3 ℃

Resolution

0.01 ℃

3. Instructions

3.1 function

3.1.1 periodic heartbeat

Both ST11TN and ST11NN support the periodic heartbeat , and the heartbeat period can be modified by the Server. The default period is 1800 minutes.

3.1.2 temperature measurement

ST11TN supports temperature monitoring, ST11NN does not support temperature monitoring. ST11TN can monitor the ambient temperature, and the monitoring period can be modified through the Server.

3.1.3 Drop monitoring

ST11NN can be pasted on the asset equipment through double-sided adhesive tape. When the adhesive tape of ST11NN falls off and ST11NN is stripped off from the asset, it can be detected by itself to give a drop alarm.

3.1.4 battery power monitoring

Both ST11NN and ST11TN have the function of battery power monitoring. When the battery power is found to be low, alarm data can be sent.

3.2 View uploaded data

  1. ST11TN power-on starts normal operation
  1. The gateway is powered on and connected to the network at the specified location.
  1. Use NMS to View upstream data