Shenzhen Siwei Wireless Technology Co., Ltd. independently developed a wireless network multi-point acquisition system. The system adopts wireless networking mode for temperature, voltage acquisition and real-time monitoring. The system is divided into acquisition end and centralized end. The PC software is divided into three parts. The modules used in the two parts are si4463 wireless modules independently developed by Siwei. Each network consists of one centralized terminal and 64 measuring terminals (can be extended to 3000 measuring terminals). The same environment can allow 40 networks to exist simultaneously.
The measuring end consists of multiple function blocks such as temperature acquisition, battery voltage measurement, timing upload, automatic time synchronization, wireless configuration parameters, and low power consumption.
The centralized end consists of wirelessly collecting data from each measurement end, LCD screen display, wireless configuration parameters, RS485 output and other functional blocks. The centralized terminal can also be connected to the computer for parameter modification, and the parameters of each collection terminal can be modified wirelessly.
PC software, centralized, and parameter settings on the acquisition side.
The timing upload function of the temperature measurement end is compatible with the requirements of low power consumption and real-time performance. Compared with the polling mechanism, the flexibility and real-time advantages, battery life can be better controlled. Software development is relatively complicated.
A brief description is as follows:
The temperature measurement end collects the temperature according to a time interval we set and uploads it to the centralized end, and then uploads it to the server from the centralized end. For example, if we set the time interval to 64S, the temperature measurement end will upload the collected temperature to the centralized end every 64 seconds.
Advantages of the timed upload feature:
It allows customers to weigh the choices in terms of data real-time and usage time.
The system's acquisition interval can be wirelessly airborne (without disassembly and other ancillary tools to save costs).
How to achieve:
The temperature collection end uploading time interval can be arbitrarily set according to the needs of the customer. The larger the collection interval is, the smaller the average current at the temperature measuring end is, the longer the battery life is, but the real-time data is poor. The opposite is true.
（Example application diagram）