With the stepped water price, the policy of one household and one meter, and the promotion of the smart city construction of the Internet of Things, the requirements of water supply enterprises for water supply management are getting higher and higher, and the process of replacing traditional mechanical water meters with smart water meters will accelerate. Compared with mechanical water meters, ultrasonic water meters, which are the development direction of new technologies, have the advantages of high precision, wide range ratio, no moving parts, simple mechanical structure, etc. With the further promotion of major water meter manufacturers, ultrasonic water meters will usher in a fast development of.
This article mainly introduces the ultrasonic water meter scheme based on the integrated chip E703.15. Based on this chip, Zhou Ligong has developed a complete ultrasonic water meter solution that can quickly support the entire process from evaluation to mass production.
Highly integrated ultrasonic chip E703.15 Introduction:
E703.15 is a hybrid mode low-power ultrasonic flowmeter special chip introduced by ELMOS of Germany. It contains analog part and digital part. It integrates MCU, ultrasonic time interface part, temperature interface part and power management. It can be used in the fields of ultrasonic water meters, heat meters and gas meters. The single-chip solution simplifies the peripheral circuitry by simply connecting the power supply, clock and ultrasonic transducers.
Parameter characteristics:
Internally integrated 16-bit MCU with 32kB Flash and 5kB RAM;
Rich peripheral interfaces, UART, SPI, I 2C and PWM;
Internal voltage regulator for direct battery operation;
2-channel ultrasonic, 5-channel temperature ADC;
38ps ultrasonic measurement accuracy;
64-bit floating-point unit, internal curing ultrasound software library;
-40~+85°C operating temperature range;?
The whole system is less than 30μ A average operating current;
Scheme block diagram:
E703.15 Single-chip built-in MCU and rich peripheral interface, can carry out ultrasonic measurement and temperature measurement, data is transmitted internally by chip, high efficiency, high reliability, and simplified software and hardware design, suitable for ultrasonic water meter, ultrasonic heat meter and Ultrasonic gas meters, etc.
Evaluate the DEMO board:
Zhou Ligong can provide a one-stop solution for evaluating DEMO boards and including ultrasonic water pipes and PC software.
Demo board hardware interface:
USB to serial port;
Ultrasonic peripheral interface;
Temperature peripheral interface;
Infrared communication interface;
LCD segment LCD;
M-BUS interface;
The Chinese version of the PC software provides various parameter observation and modification functions to facilitate and speed up the development process. The software can observe the ultrasonic water meter to run various data (flow, flow rate, ultrasonic time, etc.);
Ultrasonic time curve display;
Flow rate curve display;
The total flow curve is displayed;
Calibration curve, etc.
to sum up:
The ultrasonic water meter solution based on the E703.15 high integration chip has high precision and stability, and the user does not need to add an MCU, which makes the peripheral circuit design simpler. In addition, Zhou Ligong can provide schematics, PCB reference, DEMO board, software routines, host computer debugging software, mass production tools and other services, which can help water meter enterprises quickly from evaluation to mass production.
Fiber Optic Patch Panel(ODF)
Fiber optic patch panel is now widely used in networks and it is an integrated unit for fiber management, we are offering various kinds of Fiber Optic Patch Panel, such as wall mounted fiber optic patch panel, rack mounted fiber optic patch panels. These equipment functions to fix and manage the fiber optic cables inside the box as well as provide protection.
Our wall mounted fiber patch panels accommodate up to 8 modular panels and is equipped with routing guides to limit bend radius and enhance strain-relief control. The 16-gauge steel with corrosion-resistant black powder finish coat housing provides excellent protection for the inside fibers. Wall-mount available unloaded, as well as having the capability to become a full-splice enclosure with mechanical terminations. A large variety of connector adapters are offered to meet your specific requirements. Such as SC, FC, ST, LC, etc, we can also pre-install various kinds of fiber optic pigtails inside the patch panel.
YLTelecom offers a series of changeable inside panels to fit for different kinds of the adaptor interface, and fit for both round and ribbon fiber optic cables. Our rack mounted fiber patch panels can be drawer type or economic type without draw design.
A Fiber-Optic Patch Panel is used to separate out the fibers within a fiber-optic cable. By using one of these panels, the fibers can be spliced to individual fibers on other cables, allowing the cables to be crossed and connected in a variety of ways. In addition, the panel creates a safe environment in which to work with exposed fibers.
There are two main types of Fiber-Optic Enclosures. One is a wall-mounted device, which, in its most basic form, can keep 12 different fibers separate from one another. If the fiber-optic cable has more than 12 fibers, the extra fibers can be moved to a second panel or an engineer can use a panel that is designed to hold more fibers separately. Wall-mounted panels can be constructed to hold up to 144 fibers at once.
The other type of Fiber-Optic Patch Panel is a Rack-Mounted Panel. This type of panel holds the fibers horizontally and is often designed to open like a drawer. Sliding the panel open gives an optical engineer easy access to the fibers inside.
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NINGBO YULIANG TELECOM MUNICATIONS EQUIPMENT CO.,LTD. , https://www.yltelecom.com