Gateway GU300S with Global Cellular Support Released

In September 2023, Broadsens is happy to announce the release of next generation wireless edge-computing gateway GU300S, which supports global 4G LTE cellular network. GU300S can send data received from wireless vibration and temperature sensors remotely through cellular network to clouds, servers or a local PC. This is useful when there is no access to the local Ethernet or WiFi network. GU300S can also be controlled remotely via cellular network either through VPN or MQTT protocol. Before the release of GU300S, when local network is not available, user needs to use a dedicated 4G LTE router to connect to the gateways. GU300S saves the additional hardware investment and integrates the cellular network ability into one hardware.

GU300S wireless gateway cellular network
GU300S connectors back view
GU300S gateway Front View with antenna connector

GU300S has integrated SIM7600G-H-PCIE series LTE Cat 4 module, which supports wireless communication modes of LTE-TDD/LTE-FDD/HSPA+/GSM/GPRS/EDGE etc. GU300S supports maximum 150Mbps cellular downlink rate and 50Mbps uplink rate. GU300S is suitable for LTE, UMTS and GSM networks with global coverage.

4G LTE SIM card is required to use the cellular network function. Similar to other wireless gateways, GU300S comes with integrated database and large local storage. The gateways store wireless vibration and temperature sensor data for 6 months in default, and can be expanded up to five years. GU300S also supports Broadsens's other sensors such as wireless pressure sensors, wireless strain gauges, wireless dynamic angle sensors, etc. For users who do not need cellular network access, wireless edge-computing gateway GU300 is recommended.

Conditional Monitoring With SVT-V Sensors Triggered Scan

Broadsens recently added the ability of using SVT-V series real-time wireless vibration & temperature sensors to trigger SVT-A sensors scan. This innovation made conditional based monitoring possible with wireless vibration & temperature sensors. Before this update, conditional monitoring is only possible with wired vibration sensors that have constant power supply, because it requires the sensors to acquire data continuously. SVT-V series wireless vibration and temperature sensors are the only true real-time sensors in the industry that monitor continuously with long-lasting battery. SVT-A series sensors can capture triaxial acceleration data for advanced vibration analysis and predictive maintenance. By using SVT-V series sensors to trigger SVT-A series sensor scan, the advantages of both sensors are combined to provide the most advanced wireless vibration monitoring system in the industry.

Scheduled monitoring could miss many critical events, because the machines may not be running when the sensors are scanning. It may takes weeks or many months for a scheduled monitoring system to catch the defects of random running machines.

With Broadsens's wireless vibration monitoring system, users can define a trigger level for an SVT-V sensor. The SVT-V sensor monitors continuously. When the trigger threshold is exceeded, then an SVT-A sensor group can be selected to take data for advanced vibration analysis.

As an example, when the steel plates pass through hydraulic press, an SVT300-V sensor can set up an velocity threshold and acceleration threshold to trigger a group of SVT300-A sensors to scan the motors at high frequency. The press machines could run randomly, in which case periodic monitoring by other wireless vibration sensors will miss the working condition. With proper trigger threshold definition, the high resolution triaxial acceleration data of worst working condition of the press machine can be captured by Broadsens wireless vibration and temperature sensors.

Steel mill conditional monitoring

Steel mill conditional monitoring

Railway vibration (dynamic cant) monitoring

Railway vibration (dynamic cant) monitoring

Another example is the railroad machines and structure monitoring. The trains could arrive irregularly, which makes it difficult to obtain high resolution vibration data. With this new feature, an SVT200-V sensor can be set up to trigger multiple SVT-A sensors scan when an vibration level (either acceleration RMS or velocity RMS) is exceeded. In the SVT-A sensor group, user can assign either two SVT200-A sensors or four SVT200-A sensors. We choose SVT200 sensors for high sensitivity monitoring to detect the smallest possible vibration, velocity and displacement. SVT300 or SVT400 sensor could be used depending on the vibration level in applications.

Now it is the magical part: Broadsens SVT-A series wireless vibration sensors in the same group can be synchronized to take data. User can mount two SVT200-A sensors in two tracks. Then the railway dynamic cant can be monitored when a train passes by. The cant of a railway track is the rate of change in elevation (height) between the two tracks. Both SVT-A sensors are triggered by the SVT200-V sensor to take data at the same time when a train passes by. Both the high resolution time domain and frequency domain data in 3D are transferred to Broadsens's wireless gateway for data storage and processing. Then the acceleration, velocity and displacement data are obtained at both SVT200-A sensors with the BroadVibra vibration and analysis software. When a train passes by, then the dynamic cant is obtained with this innovative technology.

The SVT-V sensor triggered SVT-A sensor high resolution scan is an repeated event, which means that the SVT-A sensor high speed scan can be triggered multiple times when either the acceleration RMS or velocity RMS level is exceeded. This ensures that the sensor system can capture critical events with high resolution (up to 16,384 samples in each axis) and high frequency data (up to 25.6kHz).

Before Broadsens developed this conditional based wireless vibration monitoring system, traditional route-based monitoring is still required, since automatic periodic monitoring could miss random defects and production lines that run randomly. A personnel needs to manually take data when the machines are running to capture the issues. However, there are dangerous sites that prohibit the personnel from being onsite. With Broadsens's advanced vibration monitoring technology, traditional route based vibration monitoring could be completely replaced in the future.

SVT-C Series Wireless Vibration Sensors Released

Broadsens is pleased to release the smallest wireless vibration and temperature sensors in the industry, the SVT-C series wireless vibration & temperature sensors. SVT-C series sensors use external 9-36V DC input, which targets customers who want to use the latest wireless technology, but also have access to the power supply and want to avoid the hassle of replacing the sensor batteries. A typical application of the SVT-C series sensors is the spindle machine condition monitoring and predictive maintenance. Spindle machines have access to 24V DC power supply with tight spaces. SVT-C series sensors can be mounted inside spindle machines and monitor the crucial components continuously.

SVT-C series sensors include two options: SVT-CA and SVT-CV. SVT-CA matches the standard SVT-A series sensor functions, while SVT-CV matches the standard SVT-V series sensor functions. Please refer to this article on the difference between SVT-A and SVT-V series sensors. The following SVT-C series sensor models are provided: SVT200-CA, SVT300-CA, SVT400-CA, SVT200-CV, SVT300-CV and SVT400-CV.

Wireless vibration sensor SVT200-C hold by hand
Wireless vibration sensor SVT200-C with external power

Slightly bigger than finger nails, SVT-C series wireless vibration sensors have the smallest footprints in the industry. The sensors can fit into extremely tight spaces, and perform measurements and send data out wirelessly. The enclosure of the sensors are made of stainless steel and industrial plastics, which are resistant to corrosion, vibration and pressure. The sensors should be mounted with epoxy. There is an MOQ (minimum order quantity) of ten SVT-C sensors.

As the most advanced wireless vibration sensor provider in the industry, Broadsens has the largest selection of wireless vibration and temperature sensors. With the release of SVT-C series sensors, Broadsens further enhanced its leadership in the wireless vibration & temperature sensors and wireless IIOT.

New Edge-Computing Wireless Gateway GU300

Broadsens is pleased to announce a new edge-computing wireless Gateway GU300 that control advanced wireless vibration and temperature sensors. GU300 has all the advantages of GU200S including a powerful 4-core 1.5GHz processor, extended range to the sensors, and integrated database. GU300 has the following improvements on the popular edge-computing wireless gateway GU200S:

  1. Added two GPIO ports. The GPIO ports can be configured as either inputs or outputs by software. One limitation of GU200S is the lack of GPIO ports that interface with other hardware devices directly. GU300 addresses this issue and allows user to configure the GPIO ports with programming software such as Python, C/C++ or JavaScript.
  2. Added RS485 port. With the RS485 port, GU300 can support Modbus RTU sensors and read the sensors result to the gateway. Then the data can be sent out with MQTT protocol. GU200S only supports Modbus TCP function, while GU300 supports both Modbus TCP and Modbus RTU.
  3. An additional power supply connector. This power supply connector is used for applications with strong vibration. Power can be provided through the vibration-resistant connector for reliable operations. This additional power supply connector can also be used to power other sensors such as Modbus RTU sensors.
  4. Faster internal data transmission bus. The internal data transfer of GU300 is three times faster than GU200S. This creates opportunities for future sensor data speed boost.
Wireless gateway GU300 top view
wireless gateway GU300 front view
wireless gateway GU300 side view

The size of GU300 is 12x14x3 cm ( 4.7x5.5x1.2 in). The weight of GU300 is 490g (17 oz).

GU300 also has a higher storage capacity option, that offers up to 128GB storage.

A reset button is also added to the wireless gateway, that allows user to reset the network configuration to factory default in case that there is an IP conflict.

GU300 is available to order in July, 2023 and ready to ship out by the end of July, 2023. Please contact Broadsens for more details and price information.

Trigger Mode Added to SVT-A Series Wireless Vibration Sensors

New advanced trigger mode was added to Broadsens's SVT-A series ultra-low power wireless vibration and temperature sensors. This advanced trigger mode has a large 3,120 bytes pre-trigger buffer, which allows the sensor to capture 520 16-bit pre-trigger samples in all x, y and z axes. The sample rate of the trigger mode is user-adjustable from 400Hz up to 25.6kHz, with adjustable sample points from 2,048 up to 16,384 in three axes. The advanced trigger mode further solidifies Broadsens's position as one of the best wireless vibration sensor providers in the industry.

The trigger mode applies to all Broadsens's SVT-A series wireless vibration sensors SVT200-A, SVT300-A and SVT400-A.

Conveyor system monitoring with SVT300-A wireless vibration sensor in trigger mode

Trigger mode is especially useful to capture critical events, and ignore regular vibrations. Trigger mode is very effective to capture shock events with its generous pre-trigger buffer.

In the application of conveyor system vibration condition monitoring and predictive maintenance, a threshold level of 0.5g is defined for four SVT300-A sensors. When the absolute value of the acceleration level at x, y or z axis of the sensor exceeds 0.5g, then the sensor will mark the vibration event, save up to 520 pre-trigger samples, and continue capturing vibration event until the specified samples are collected. The trigger level can be adjusted from 0.1g to 25.5g. If the motor is not rotating, then the sensor is continuously capturing data in a circular buffer in specified sample rate. In this application, 3.2kHz sample rate is used.

Multiple SVT300-A wireless vibration and temperature sensors in the same group can be set up to capture critical events. In the above conveyor system monitoring, sensors S1, S2, S3 and S4 are waiting for the trigger event. When the motor rotates and the vibration level exceeds 0.5g, then the sensor records 16,384 samples data, and send the data to Broadsens's wireless gateway. The BroadVibra software shows the vibration curve in real time. The vibration curve can also be reviewed and analyzed in the FFT analysis page. The time waveform of sensor S1 (id 12) is shown in the following picture:

Trigger mode time domain waveform

Trigger mode can be used together with Broadsens's advanced timer by the BroadVibra software in the gateway. The time allows user to set up continuous DAQ, or periodic DAQ. The timer also allows user to specify which days and what time to start taking data. For example, user can set up the timer to take data from Monday to Saturday, and from 9am to 6pm. Then a periodic DAQ can be added for the sensors in the same group to monitor the trigger event continuously. The DAQ period can be set up at 5 minutes, and the DAQ duration can be set up at 5 minutes. Then the system can monitor trigger event non-stop.


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