The difference between NB-IoT water meter, LORA water meter and GPRS water meter
With the progress of the times, the daily use of water meters has become more and more intelligent, and technology has made the meter reading fee intelligent; the three most prominent water meters today are the NB-IoT water meter, the LORA water meter and the GPRS water meter. Some people don't know how to choose and distinguish between these three types of watches.
What is NB-IOT water meter? LORA water meter? GPRS water meter?
NB-IoT is an emerging technology in the field of IoT, which supports cellular data connection of low-power devices in WAN. NB-IoT uses the licensed frequency band based on the operator's network with the widest coverage in the world and can be directly deployed on the GSM network, UMTS network or LTE network to enjoy better services. The birth of LoRa is earlier than that of NB-IoT. LoRa works in unlicensed frequency bands, so no additional fees are required. The LoRa protocol is simpler and easier to develop than NB-IoT, and the relative cost is less. LoRa nodes can sleep longer or shorter according to the needs of specific application scenarios, and the battery life is longer. GPRS is short for General Packet Radio Service Technology. For the packet-switched mode, users only occupy resources during the period of sending or receiving data, which means that multiple users can efficiently share the same wireless channel, thus improving the utilization of resources, and paying less for the long link time. GPRS can provide up to 115kbps transmission rate, the transmission rate is high.
The characteristics of the three types of meters
☛ Ultrasonic NB valve-controlled water meter: It is a new type of intelligent fully electronic valve-controlled water meter using ultrasonic detection technology. The instrument integrates measurement, accumulation, display, and valve remote control. It adopts micro-power consumption technology. One battery can be used for more than 8 years, and can achieve accurate measurement of the minimum flow rate of 0.001 m3/h. At the same time, the instrument has small size, stable It has the characteristics of good performance and strong anti-interference ability.
The ultrasonic flow measurement technology is adopted, which can realize multi-angle installation, the instrument measurement is not affected, and the pressure loss of the pipeline is minimized.
The valve switch can be remotely controlled to realize the user's remote control of water use.
The intelligent valve-controlled water meter can be connected with the NB-IOT module produced by our company and use the NB network for data transmission to form a wireless monitoring system. When the pipe network is abnormal, it will actively report the abnormal operation of the pipe network.
☛ LORA smart water meter: The advanced wireless transmission technology is used to realize the remote centralized reading of the remote water meter, the concentrator and the computer, without wiring, the construction is simple and convenient, and the problem of difficult meter reading is effectively solved. The remote water meter uses the wireless networking of the meter, the signal is covered without gaps, and there is no blind spot for meter reading. The valve is designed with anti-rust function, and the valve is automatically opened and closed twice a month.
Frequency automatic calibration technology: automatically adjust operating parameters, effectively avoid frequency offset caused by environmental changes, and achieve ultra-high meter reading rate.
Electromagnetic wave wake-up technology: wake up the target smart meter to make it in the communication state during meter reading, and automatically return to the ultra-low power consumption state after meter reading, saving energy and reducing consumption.
A variety of meter reading methods are available, and wireless centralized reading system and handheld meter reading device meter reading system are selected according to different needs.
Two modes of timed uploading and real-time uploading can be selected to meet different customers' needs.
High waterproof grade design, the protection grade can reach IP68;
Adopt American company communication chip, which has the characteristics of high performance and low power consumption;
☛ GPRS ultrasonic water meter: It integrates the ultrasonic water meter and the GPRS data acquisition module into one, with the characteristics of compact structure and convenient installation. The meter adopts high-quality low-voltage electric ceramic transducer, which ensures high accuracy and stability. The watch has no mechanical movement, no wear and tear, is not affected by bad water quality, and has low maintenance costs. The watch can be installed horizontally and vertically, and the humanized design meets the normal reading angle requirements, making reading more convenient. GPRS ultrasonic water meter can display cumulative flow (m3), instantaneous flow (m3/h), cumulative running time (h), cumulative error time (h) and other four display functions, and can display the current date, factory number, the first two Fourteen-month monthly water consumption value, and a low battery indicator and automatic error diagnosis function to ensure safe and accurate operation. The water meter is also equipped with an infrared interface, and a handheld automatic meter reading device can be used for meter reading.