In the ZigBee home automation system, we can use the out-of-band technology to transmit network credentials, and the standard methods for adding devices to the network and for key exchange are enhanced. With NFC tags connected to ZigBee devices, secure information transmission can be achieved witho

Model NO.: SA806 Alarm Method: Audible and visual alarm, conveyor belt return aut Weight: About 250kg

September 22 was the seventh "No Car Day". At 9:00 in the morning, Changzhi Mayor Jiang Zhiying came to the scene of a car-free day publicity campaign. He said that the government should actively guide the public to travel by car and make green travel A habit. At the site of the event,

According to the size of the parts to be processed The smaller-sized lifting table CNC milling machine has a table width of less than 400mm. It is most suitable for the machining of small and medium-sized parts and the contour milling of complex shapes. For larger specifications, such as gantry mi

The picture shows the micro resonator frequency comb system (Source: Arslan Raja, Federal Institute of Technology, Lausanne) Optical frequency combs (OFC) is a laser source whose spectrum consists of a series of discrete, evenly spaced comb-shaped spectral lines that can be used for accurate mea

The ordinary circuit breaker relies on the deformation of the bimetal and the magnetic field force for overload and short circuit protection, and the intelligent circuit breaker collects the current of each phase through the transformer, compares with the set value by the microprocessor, and then

On February 13, 2019, it was learned that the North American International Auto Show was held in Detroit, Michigan. The 2019 new Dodge Ram RAM heavy-duty pickup truck with Cummins' new generation 6.7-liter turbocharged diesel engine became the highlight of the truck booth. This engine pro

On February 19, 2019, it was learned that the global power management company Eaton (NYSE: ETN) announced its inclusion in Fortune magazine's "Top 20 Most Admired Companies in the World" list. Global Power Management Company Eaton “It’s one of the most admired com

1. Symptom: The flow rate is displayed abnormally The data changes drastically Cause analysis: The sensor is installed in a place where the pipeline vibration is large or the flow state device is changed (such as regulating valve, pump, and downflow orifice). Solution: Mount the sensor away from

At present, the LED light pole screen is a segment of the LED display screen, and the application scenes are different, and the new requirements for the quality of the led display of the light pole are put forward. Not to mention intelligent, service and system software, in terms of hardware, ther

[China Instrument Network Instrument Enterprise] Recently, the Huizhong Co., Ltd. SCL-61H household ultrasonic water meter has been officially issued by the Dutch NMi issued a certificate, marking the Huizhong Household Ultrasonic Water Meter through MID certification. The MID certification, Measur

China National Forage Industry Technology System Mechanical Post*, Professor of China Agricultural University Wang Decheng said that research on forage mechanized drying technology in alpine regions is a pioneering undertaking. It breaks the traditional concept and method of forage production in the