IoT Product Quick Start Manual

1. Document Overview

This guideline serves as a universal quick start manual for all IoT products developed by Beijing Gewu Zhicheng Technology Co., Ltd. It covers five core product series:IoT Gateway RTU, Liquid Level Sensors, Intelligent Integrated Gates, Smart Agricultural Ecological Products, and Signal Converters.

Targeted at field installers, commissioning engineers, and operation & maintenance personnel, this document covers the full workflow of equipment installation, wiring, parameter configuration, network access, data collection, device control, and troubleshooting. It supports rapid deployment and basic operation of all devices for scenarios including smart agriculture, hydrological & water conservancy monitoring, water quality monitoring, geological & meteorological observation, and water resource management.

2. Company & Product Introduction

Founded in 2019, Beijing Gewu Zhicheng Technology Co., Ltd. was certified as a National High-Tech Enterprise in 2020 and holds more than 20 patents and software copyrights. The company focuses on the R&D, design and manufacturing of IoT transmission-layer hardware. Adopting a streamlined development strategy, it concentrates on core data acquisition and transmission technologies, provides OEM/ODM customization services, and delivers lightweight, high-efficiency industrial IoT solutions.

The company’s product portfolio consists of five major categories: industrial IoT gateways, intelligent sensing devices, water conservancy intelligent control equipment, smart agricultural ecological devices, and signal conversion modules. All products feature low power consumption, industrial-grade protection and high stability. They support multi-channel data collection, signal conversion, remote device management, and standardized data uploading, adapting to harsh operating environments such as unattended field stations, high-humidity areas, and strong electromagnetic interference scenarios for agriculture, water conservancy, geology and meteorology applications.

2.1 Core Product Specifications & Features

• GWGT-T1 Data Terminal: Full waterproof design suitable for high-humidity environments; built-in high-definition capacitive touch screen for on-site visual operation; embedded low-power BLE Bluetooth with persistent broadcast support, enabling local wireless debugging and improving installation efficiency and equipment security.

• GW-GG-A Basic RTU Gateway: Ultra-low power universal gateway for conventional monitoring scenarios; built-in BLE Bluetooth with sleep & wake-up function; independent sensor power control and power-on delay configuration; supports up to 32-channel sensor data collection; remote firmware upgradeable; compatible with TCP and MQTT protocols; supports JSON, SL651, SZY206 and other industry-standard communication protocols for hydrological monitoring.

• GW-GG-PRO Professional Large-Screen RTU Gateway: High-end industrial-grade device with dual-network redundancy (Ethernet / 4G); equipped with a 5-inch high-definition capacitive touch screen; optional built-in large-capacity battery for off-grid field deployment; high-precision analog acquisition chip supporting 4-20mA signal input; supports BLE local debugging, GNSS positioning expansion and customized protocols for high-precision industrial monitoring projects.

• Liquid Level Sensor Series: Industrial high-precision sensors developed for hydrological, water conservancy and agricultural liquid level monitoring. Featuring strong anti-interference performance, they provide real-time liquid level measurement for rivers, reservoirs, ponds and farmland irrigation areas. Working with Gewuiot gateways, they support automatic data reporting and threshold alarming for long-term unattended field monitoring.

• Intelligent Integrated Gate: All-in-one water conservancy intelligent control equipment integrating mechanical gate, electric drive, data acquisition and IoT transmission. It supports remote start/stop, opening adjustment and real-time status monitoring. Linked with liquid level sensors, it realizes automatic water regulation for farmland irrigation, river regulation and reservoir water level management.

• Smart Agricultural Ecological Products: Complete environmental monitoring solutions for smart agriculture and ecological farmland. The product line includes soil sensors, meteorological sensors, farmland environment monitors and intelligent irrigation accessories. With low power consumption and outdoor dustproof & waterproof design, it collects soil temperature & humidity, soil salinity, air temperature & humidity, illumination and rainfall data. It connects with RTU gateways to realize 24-hour agricultural environment monitoring, intelligent water-saving irrigation and farmland ecological data analysis for fields, orchards and smart farms.

• Signal Converter: Industrial signal conversion module for standardization of on-site sensor and communication signals. It supports mutual conversion among 4-20mA, RS485 and TTL signals, converting non-standard sensor signals into gateway-recognizable standard signals. With stable performance and low latency, it solves signal incompatibility problems in multi-sensor scenarios and supports equipment renovation and networking in agriculture, water conservancy and industrial monitoring projects.

2.2 Core Application Scenarios

Typical applications include smart agricultural ecological monitoring, intelligent water-saving irrigation, agricultural data collection, hydrological informatization, water quality monitoring, geological disaster early warning, meteorological station data acquisition, river & reservoir liquid level monitoring, and intelligent water gate control. The system realizes full-link intelligent management: environmental perception — signal conversion — data collection — cloud transmission — equipment control.

3. Pre-Deployment Preparation

3.1 Hardware Preparation

• Gewuiot IoT gateway or sensing devices

• Matching power supply; solar power modules for low-power field deployment

• Network medium: built-in 4G SIM card for wireless access; Ethernet cable for wired access

• Debugging devices: BLE-enabled smartphone, office computer

• Auxiliary equipment (optional): soil/meteorological agricultural sensors, liquid level sensors, 4-20mA/RS485 signal converters, intelligent gate actuators

3.2 Software Preparation

• Mobile terminal: Bluetooth debugging tool for local parameter configuration and channel calibration

• PC terminal: web browser for official document and platform access; serial debugging tool for advanced engineering configuration

4. Equipment Installation & Wiring Specifications

4.1 Installation Requirements

Devices support standard DIN rail mounting and wall mounting. Install away from high temperature, water accumulation and strong electromagnetic interference to ensure proper ventilation and heat dissipation. For outdoor deployment, implement waterproof, sun-proof and lightning protection measures and fix equipment firmly. Adjust solar panel orientation for stable power supply in solar-powered scenarios.

4.2 Standard Wiring Procedures

1. Power Wiring: Connect the matched power supply strictly according to positive/negative polarity marks on the device shell. Stable power supply is confirmed when the operation indicator is steady on. Avoid voltage mismatch and reverse connection to prevent device damage.

2. Network Wiring: Insert valid SIM card for 4G devices and ensure signal coverage; connect Ethernet cable to switch or router for wired devices; dual-network models support primary/standby network configuration.

3. Signal & Peripheral Wiring: Connect agricultural environment sensors, liquid level sensors, 4-20mA/RS485 sensors, signal converters and gate actuators according to terminal definitions. The GW-GG-A supports up to 32 acquisition channels. Ensure correct polarity and firm connection to avoid short circuit and poor contact. For signal converters, strictly distinguish input and output terminals to guarantee stable one-way signal conversion. For intelligent gates, separate power, signal and control lines to ensure normal start/stop and adjustment functions.

5. Parameter Configuration & Network Access (Core Operation)

Gewuiot devices require no Wi-Fi configuration or mandatory cloud binding. Two local configuration methods are supported: BLE Bluetooth debugging and on-screen local setting. Devices can connect freely to private servers or third-party industry platforms without official platform restrictions.

5.1 Local BLE Bluetooth Debugging (All Models)

1. Power on the device; the Bluetooth module enters broadcast state.

2. Enable mobile Bluetooth, disable irrelevant Bluetooth devices nearby, search and connect the target device.

3. Configure core parameters via the debugging tool: sensor power switch, sleep/wake-up mode, power-on delay, data collection cycle, upload interval, communication protocol, industry protocol and platform server address.

4. Parameters take effect automatically after saving, no disassembly required, suitable for high-altitude and hard-to-reach field equipment.

5.2 On-Screen Configuration (Touch-Screen Models Only)

GWGT-T1 and GW-GG-PRO devices support full local configuration directly via the built-in touch screen, including network parameters, acquisition channels, upload protocols and operating modes, improving on-site commissioning efficiency without Bluetooth tools.

5.3 Network & Data Upload Configuration

1. Protocol Selection: Choose TCP or MQTT according to project requirements.

2. Industry Protocol Adaptation: Support general JSON format and professional water conservancy protocols including SL651 and SZY206; customized protocol development is available.

3. Platform Access: Fill in the server address and port of private or third-party platforms. The device automatically restarts and connects to the network after saving parameters to complete the data upload link.

6. Core Functions Operation Guide

6.1 Automatic Multi-Channel Data Collection

After network connection, the device automatically collects data from all connected sensors, including farmland soil & meteorological data, liquid level data and industrial sensing data, supporting simultaneous 32-channel acquisition. With sensor power delay and independent power control, devices adapt to low-power unattended field scenarios. Signal converters standardize non-standard on-site signals to ensure stable and accurate gateway acquisition. Real-time data can be checked via local touch screen or Bluetooth tools and uploaded to cloud platforms for storage and display.

6.2 Remote Device Control

The device supports remote control commands issued by the platform, including gate start/stop, opening adjustment and switch signal control. Combined with real-time liquid level data, it realizes intelligent linkage control and unattended operation for water conservancy and agricultural scenarios.

6.3 Remote Upgrade & Maintenance

All models support remote firmware upgrade to fix bugs, update functions and adapt new protocols without on-site disassembly, greatly reducing O&M costs. Acquisition parameters, network settings and alarm thresholds can be modified online with real-time effect.

6.4 Data Storage & Traceability

Monitoring data, device online/offline status and parameter modification logs are synchronized to the connected business platform, supporting time-period query, data export and log traceability to meet industry data retention and compliance requirements.

7. Indicator Light Status Description

• Operation Light: Steady On — Normal power and system operation; Off — No power or hardware failure

• Network Light: Blinking — Network dialing / connecting; Slow Blinking — Weak signal / network exception; Steady On — Network connected & data upload normal

• Bluetooth Light: Steady On — Bluetooth connected; Off — Bluetooth broadcast disabled

8. Common Faults & Quick Troubleshooting

8.1 Bluetooth Connection Failure

• Confirm the device is powered on and Bluetooth is broadcasting without deep sleep failure.

• Restart mobile Bluetooth, avoid dense Bluetooth interference sources and reconnect.

• Power-cycle the device to restore Bluetooth broadcast status.

8.2 Network Failure & No Data Upload

• 4G devices: Check SIM card installation, balance, traffic and field signal coverage.

• Ethernet devices: Check cable integrity, port connection and firewall port release.

• Verify server address, port and protocol configuration match platform access rules.

8.3 Missing or Abnormal Acquisition Data

• Check sensor wiring polarity and terminal connection for open circuit, short circuit or poor contact.

• Confirm sensor power supply status and matching of delay & channel parameters.

• Check raw data via Bluetooth or touch screen to locate faults: clean liquid level probe and check installation height for level anomalies; inspect control lines and actuators for gate failures; verify sensor installation and waterproof protection for agricultural data errors; check converter wiring and parameters for unstable signal data.

9. Advanced Expansion & Customization Services

Devices support GNSS module expansion and personalized protocol customization for special industry scenarios. The company provides customized overall solutions including smart agricultural ecological monitoring, liquid level monitoring, intelligent gate control, signal conversion renovation, as well as IoT hardware OEM/ODM services. For advanced development and project customization, refer to official website technical documents and cases.

10. Technical Support

For equipment installation, commissioning, fault handling, parameter configuration, solution consultation and customized cooperation, please contact the official customer service and after-sales support via the official website: www.gewuiot.com