Industry IOT

The wireless pressure plate sensor mainly consists of a microprocessor, battery, indicator light, Hall sensor, crystal oscillator, wireless peripheral circuit, and antenna. The Hall sensor group is used for non-contact magnetic field detection. The microprocessor determines the rotation status of the pressure plate by reading the information from the Hall sensor, and then determines the current state of the pressure plate's engagement and disengagement. Supports Bluetooth and 2.4GHz ultra-low power wireless applications, allowing direct communication with Bluetooth phones and enabling mobile inspection applications. It is a simple non-contact method for detecting the status of the pressure plate, where there is no electrical connection between the sensor and the pressure plate, and it does not affect the normal use of the pressure plate. 

Wireless intelligent gasket, based on 2.4GHz digital wireless technology, collects bolt stress and stress changes, and aggregates the data to the data transmission base station. The data transmission base station forwards the data to the monitoring platform, displaying the bolt stress changes in real time and providing data support for status maintenance. 

The wireless inclination sensor consists of a low-power MCU, a high-precision accelerometer, a 2.4GHz digital RF transceiver, and a high-temperature lithium-ion battery. It can achieve the measurement of tilt angle in the gravity reference frame and can be widely used in various occasions such as towers, buildings, and various equipment that require the measurement of tilt angle. 

Wireless vibration sensor is a high-performance, composite wireless sensor product that integrates high-performance MEMS acceleration sensors, temperature sensors, and speed sensors. It is used to monitor the operating status of rotating equipment in real time, obtain vibration, temperature, and speed information of the equipment, provide data support for discovering equipment hazards and preventing equipment failures, and assist in improving the user's operation and maintenance level.

In the faults of power capacitors, bulging phenomenon is the most common. Almost all capacitor failures are accompanied by an increase in temperature, so monitoring the operating temperature rise and shell deformation of capacitors is an effective technical means of warning capacitor failures. Wireless deformation temperature sensors have temperature and deformation measurement functions, consisting of low-power MCU, semiconductor strain gauges, digital temperature sensors, 2.4GHz digital RF transceivers, and high-temperature lithium-ion batteries. They are mainly used for temperature and deformation monitoring of equipment shells with oil tanks, such as power capacitors, transformers, and other equipment. 

In the power system, power capacitors play a very important role in ensuring the quality of power supply. During the operation of capacitors, factors such as high ambient temperature, harmonics, internal short circuits, and inrush currents may cause the capacitors to overheat, leading to swelling, cracking, oil leakage, and in severe cases, explosions and fires. Wireless deformation temperature sensor, based on 2.4GHz digital wireless technology, can reliably monitor the deformation and temperature of capacitor shells, achieving real-time online monitoring of the deformation and temperature changes of power capacitor shells. 

Wireless door magnetic sensor (wireless door switch sensor), installed on cabinet doors/gates, is used in conjunction with devices such as permanent magnets or electromagnetic coils that can form a magnetic field. It can monitor the opening and closing status of cabinet doors and the number of times they are opened and closed in real time online. It has the characteristics of small size and easy installation, and will not affect the normal use of the cabinet door. 

The expansion joint of the busbar tube is mainly used to absorb the thermal expansion and contraction of equipment, the displacement of the foundation expansion joint, the installation adjustment between equipment, and various stresses caused by earthquakes and operations, ensuring the integrity of the busbar tube and other parts. At present, the displacement monitoring of the busbar tube expansion joint is achieved by setting mechanical scales and scale indicator boards on both sides of the expansion joint, and using manual observation. This method has problems such as large manual workload, high labor cost, and poor real-time performance. By using expansion joint deformation sensors, the shortcomings of existing monitoring methods that require manual observation have been solved, and automatic monitoring, recording, and remote transmission of parameters such as displacement and environmental temperature of the busbar tube expansion joint have been achieved. 

Wireless temperature sensor, based on the fusion of 2.4GHz digital wireless technology, intelligent frequency modulation technology, and ultra-low power consumption technology, with integrated and miniaturized design and IP67 structure packaging, can be installed at the temperature measurement points of all equipment joints in power transmission, transformation, and distribution. Installing it at joints, switch contacts, line conductors, etc. can achieve high reliability real-time online monitoring of temperature, temperature rise, and phase to phase temperature difference, thereby realizing intelligent management of operating temperature of power equipment. Built in SM1/SM7 chips for identity verification and data encryption, ensuring secure and reliable communication data transmission. 

Wireless electromagnetic counter, used to replace the analog signal action counter of circuit breakers, can record the number of switch actions in real time and count the pressure test actions. It consists of control circuit, attenuation circuit, optoelectronic isolation circuit, signal conditioning circuit, power circuit, wireless module indicator light, buttons, antenna, etc. When the switch is activated, the control circuit counts the number of digital signals, and the action count value is saved to the memory and displayed in real-time on the digital display. Wireless counters can achieve wireless communication with mobile terminals (smartphones, tablets, etc.) through wireless modules. 

Wireless insulator leakage current sensor, using direct measurement method to measure current signal, real-time monitoring of high-voltage insulator to ground leakage current. Integrated high-performance wireless SoC, high-precision current measurement circuit, flashover protection circuit, power supply and energy storage circuit, with a wide dynamic measurement range and good measurement accuracy, easy to install and use, and can operate for a long time without maintenance. 

Cable data collector, designed for monitoring cable joint temperature and cable shielding layer circulation, integrates one temperature sensor and two current sensors to monitor cable joint temperature and cable shielding layer circulation in real-time online. The data collector has reserved 2.4GHz wireless transmission and reception function, which can be used to access various sensor node data of the wireless sensor platform.