Summary: Bluetooth gas meter, smart four-table program all here! You have to wait for you to get!
At present, more and more intelligent water/gas/hot meters on the market use Renesas' main platform. In terms of performance, reliability and overall cost, Shihsung's Renesas MCU and SOC solutions do have advantages. See below for details. analysis:
Figure 1: Shiqiang smart water/gas/hot meter solution based on Renesas MCU/SOC
The diagram above shows the block diagram of the Shiqiang smart water/gas/hot meter solution based on Renesas R7F0C002/R7F0C019/R7F0C004, including the following functional modules:
· Directly powered by 3.6V lithium battery, with battery low voltage detection indication function;
·Buzzer alarm control;
· Real-time clock indication, automatic flipping in leap years;
· Built-in LCD driver to support multiple driving methods;
· Valve stall detection;
· Ultra low power design;
· With internal hardware multipliers;
· Scalable communication interface for easy data collection;
Shiqiang intelligent water/gas/hot meter program is a prepaid IC card type meter, which complies with relevant industry standards such as CJ/T133-2012 "IC card cold water meter" and CJ 128-2007 "heat meter", and supports "first buy water / The prepaid management method of water/gas after gas has improved the various drawbacks of the traditional management mode to a certain extent, which is in line with China's basic national conditions and has strong practical value.
The master MCU in this program recommends the use of Renesas R7F0C019, currently represented by Shiqiang. I would like to know that this material can also be searched for keywords on the Shiqiang component e-commerce platform. First of all, this MCU is rich in resources: large ROM and RAM space, convenient program expansion; LCD built-in charge pump can enhance the display effect under low power consumption; built-in RTC that meets the requirements of national network with high precision, built-in high-precision clock, realize Serial communication also eliminates the need for an external crystal; its static power consumption is less than 1uA, and it supports a wide operating voltage of 1.6V-5.5V, which can be adapted to various batteries. Figure 2 below shows the internal composition of R7F0C019:
Figure 2: Internal composition of Shiqiang R7F0C019
In addition to the mainstream smart three-table, there is also a new type of Bluetooth watch, users can read data and pay by themselves through the mobile phone Bluetooth, as follows: The block diagram of the new Bluetooth watch:
Figure 3: Block diagram of Shiqiang's new Bluetooth meter
The master MCU in the block diagram shown in Figure 3 can still use Renesas R7F0C019 or R7F0C004 of Shiqiang Agent. The Bluetooth module can also be designed by RL78/G1D (Bluetooth SOC chip, built-in MCU and Bluetooth 4.1 protocol).
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