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NB-IoT/LoRaWAN Integrated Vibration Transmitter-Wireless Condition Monitoring Sensor for Predictive Maintenance-IoT Hardware Supplier
NB-IOT, LORAWAN integrated vibration transmitter greatly saves manpower and material resources consumed by repeated deployment of wired data acquisition equipment during testing, and is widely used in vibration acceleration data acquisition and online monitoring of industrial equipment. The system node has a compact structure and a small size. It consists of a power module, an acquisition processing module, and a wireless transceiver module. It has a built-in acceleration sensor and is encapsulated in a dustproof and waterproof housing. The maximum sampling rate of each node can be set to 25.6KHz, and the analysis bandwidth can be up to 5KHz. The envelope analysis of the bearing can be performed to effectively determine the bearing fault. The collected data can be transmitted to the computer wirelessly in real time, ensuring the timeliness and accuracy of the collected data. The air transmission rate of the node can reach 250Kbps, and the effective outdoor communication distance can reach 200m. The node is designed with special power management software and hardware. Under the condition of real-time uninterrupted transmission, the node has low power consumption and uses a built-in battery. It collects data every 20 minutes and can be used for up to five years.
Vibration collection characteristics | Measuring direction | Three-axis | Single axis |
Range | 20g | 20g | |
Measuring range and accuracy | Acceleration 0.0～200.0m/S2 (peak value) Speed ??0.0～200.0mm/S (RMS true value) Displacement 0～2000um (peak to peak value) | ||
Frequency response scope | Acceleration 10Hz～5KHz Speed ??10Hz～1KHz Displacement 10Hz～1KHz | Acceleration 10Hz～2KHz Speed ??10Hz～1KHz Displacement 10Hz～1KHz | |
Accuracy | ±5% | ||
Temperature acquisition characteristics | Measuring range | -40℃～80℃ | |
Accuracy | ±2% | ||
measurement method | Contact | ||
Sampling characteristics | Sampling frequency | Acceleration 12.8KHz/25.6KHz Speed ??2.56KHz Displacement 2.56KHz | |
AD resolution | 16bit | ||
Sampling points | 1024/2048/4096 | ||
Trigger method | Single manual, planned automatic | ||
RF characteristics | RF frequency and mode | WIF1 | Zigbee 2.4GHz |
Network Topology | Point-to-point, point-to-multipoint | ||
Real-time transmission rate | 250Kbps | ||
antenna | external antenna | ||
Transmission distance (line of sight) | <300 m | <200 m | |
Environmental characteristics | Working temperature | -40℃～80℃ | |
Relative humidity | ≤80% | ||
Electrical characteristics | Built-in non-rechargeable lithium-ion battery | 8500mAh | 8500mAh |
Working current | <100mA | <100mA | |
stand-by current | <10uA | <10uA | |
operating hours | June to December | 6 to 60 months | |
Mechanical Dimensions | Height*Diameter (mm) | 92*42 | 92*36 |
Protection level | IP67 | ||
Installation | Magnetic installation | ||
The main features are as follows:
The single-axis adopts piezoelectric acceleration sensor with high frequency response and analysis frequency band up to 5KHz;
The three-axis uses MEMS sensors, which can measure three directions simultaneously, and the analysis frequency band can reach 2KHz;
Easy to install and use, eliminating the need for cumbersome on-site wiring;
Digital signal transmission avoids measurement noise caused by cables, with high measurement accuracy and strong anti-interference ability;
Professional data acquisition design and digital signal processing technology ensure the accuracy of collected data;
Ultra-low power consumption, compact size, and waterproof shell design make it suitable for outdoor work;
The maximum transmission rate in the air is 1M, and the wireless transmission distance is long;
The maximum line of sight is 200 meters;
Use 433MHz/2.4GHz free frequency band;
Self-organizing, self-healing multi-hop sensor measurement networks;
The same gateway can manage 32 sensor nodes;
High transmission reliability, AES 128-bit data encryption algorithm;
Real-time effective data transmission rate reaches 8K bytes;
Multiple triggering modes, real-time or scheduled acquisition;
Built-in battery, the whole machine sleep current is only 10μA;
Friendly acquisition and processing software interface;
Communication repeater
The communication repeater is responsible for transmitting the received wireless data to the computer for storage, analysis and processing, and the output form is usually Ethernet.
communication method Wireless/USB/Ethernet/RS485 Transmission distance 433Mhz < 200 meters 2.4GHz < 100m Ethernet < 100m RS485 < 1000m Maximum sensor access capacity 32 units | Installation Screw fastening installation Protection level IP65 Dimensions (without antenna) 160mm(length)×100(width)×35(height)mm weight 120g |
Figure 4 Schematic diagram of the appearance of the communication repeater
RT vibration status real-time monitoring system
