About Lora Wireless Intelligent Remote Water Meter
In recent years, with the vigorous development of the Internet of things industry, a number of representative IOT enterprises have emerged. Iote organizers strongly invite Fuzhou Dongri Information Technology Co., Ltd. (hereinafter referred to as "Dongri information") to participate in the 14th iote 2020 · Shenzhen station. At that time, new technologies, new products and new schemes will be displayed at booth 9d19 of Shenzhen Convention and Exhibition Center from July 29 to 31, 2020.
Company introduction
Fuzhou Dongri Information Technology Co., Ltd., located in Fujian High Tech Pioneer Park, is a national high-tech enterprise. As a leading enterprise in the field of wireless low-power Internet of things, the company is committed to providing perfect multi-dimensional wireless communication solutions for the Internet of things industry. Focus on the R & D, promotion and application of wireless communication technology, sensor measurement and control technology of Internet of things such as Lora, FSK, Bluetooth and Nb. It is mainly engaged in wireless modules such as Lora, FSK, Bluetooth and Nb, wireless intelligent remote water meter, wireless temperature measuring device, low-power ultrasonic liquid level meter, etc.
Over the years, the company has been deeply engaged in the Internet of things market, and the landing application schemes include: smart water industry: wireless intelligent remote water meter, low-power ultrasonic liquid level meter, Lora mesh wireless meter reading scheme, etc; Power Internet of things industry: power fault indicator scheme, wireless temperature measurement scheme, etc; Consumer electronics industry: Bluetooth printer motherboard, transparent transmission module, etc.
The company's R & D team is led by Mr. Xiao, who graduated from the first youth class of China University of science and technology. The team is composed of senior software and hardware engineers graduated from Tsinghua University and Fuzhou University. It has independently developed more than 20 invention patents, utility model patents and design patents, and dozens of software copyrights. It has been rated as "excellent innovation achievements of Fujian enterprises".
Promotion of some products of the company
01. Lora wireless intelligent remote water meter
Dongri Lora pulse integrated meter is a Lora wireless water meter with low power consumption, long-distance transmission, high acquisition accuracy and reliability. It adopts magnetoresistive sensor acquisition technology and Lora wireless spread spectrum communication technology, has built-in self-developed near-field sensing module, supports handset wireless configuration and firmware upgrade functions, has built-in stable high-precision clock source, supports Lora mesh ad hoc network protocol independently developed by Dongri information, and has built-in high-performance and high-capacity primary lithium-ion battery, which can work continuously for more than 10 years. The product comes with an 8-byte uid as the identification of the product. DN15, DN20 and DN25 are available for selection.
Product functions:
Collect and send forward and reverse water volume data
Sample and send built-in battery voltage
Sampling transmitting terminal temperature
Water freezing function
Magnetic interference alarm
The mobile phone app can be connected through the Bluetooth handset for parameter configuration, information reading and firmware upgrade
02. Wireless passive temperature measuring device
Drftw03-ntc-ct is a passive wireless temperature measurement device independently developed by our company. It not only maintains the advantages of the original wireless temperature measurement, but also greatly improves the temperature measurement positioning and shortens the temperature measurement cycle. CT power acquisition technology is adopted to achieve real passive power supply, and there are no electromagnetic interference and regular maintenance problems through wireless signal transmission. The device can operate reliably without maintenance for a long time, and fully meets the needs of unattended substation.
The product has built-in high-precision NTC thermal probe and internal low-temperature floating high-precision sampling resistance, which can provide temperature measurement accuracy up to 1 . It is an ISM band wireless temperature measurement product with ultra-low starting current CT power collection and long-distance transmission.
Product parameters
03. Low power ultrasonic level gauge
Drsonar485 is an ultra-low power 485 bus ultrasonic ranging equipment independently developed by Dongri information. It uses acoustic reflection to detect the detected object in a non-contact manner. Using temperature compensation, digital signal processing, digital anti-interference and other technologies, it has the advantages of high measurement accuracy, supporting a variety of power supply modes, ultra-low power consumption, wide range and so on. The waterproof and dustproof grade of the product reaches IP68, which can be soaked for a long time within 1 meter underwater, and supports a variety of outdoor applications. The product can be widely used in outdoor water level monitoring, pool level measurement, tank material measurement and various industrial automation control scenarios.
Performance index:
1. Measuring range: 0.5m 10m;
4. Power supply voltage: DC 3.4V 14V;
6. Communication bus: RS485;
04. Dongri loramesh ad hoc network meter reading scheme
05. Dongri wireless temperature measurement system
