随着安防技术的不断发展,无线红外报警器得到了非常广泛的应用.但在实际应用中发现,电池供电的无线红外报警器存在不能长时间持续供电的应用缺陷.因此,对无线红外报警器的工作原理和工作模式重新进行了分析和研究,并结合布防/撤防的实际应用情况,提出了一种太阳能低功耗无线红外报警器的改进设计方案,实现了进一步降低报警器的功耗、增加报警器电池使用寿命的目的.该报警器增加了太阳能供电电源模块,具有接收解码功能的无线收发模块及接口电路;根据报警器的布防/撤防命令,增加了对红外探头电源的通断控制;利用CPU的掉电唤醒功能,编写了报警器测控软件程序,实现了报警器的低功耗工作模式设计.实际测试和应用表明:该设计有效降低了报警器的功耗,实现了报警器18个月的超长时间持续供电.其设计思想对其他移动太阳能电源和低功耗设备的设计也有很好的借鉴意义.%Along with the development of security technology,the wireless infrared alarm devices have been widely used.But in practical applications,it is found that the battery-powered wireless infrared alarm devices carmot operate without long duration of continuous power supply.Based on the analysis and research on the operational principle and working mode of the wireless infrared alarm devices,and combining with the practical application of arming/disarming,an improved design scheme for low power consmnption wireless infrared alarm device powered by solar energy is proposed.The designing purpose of further reducing power consumption and improving the life cycle of batteries for the device is implemented.In the device,the solar powered power supply module,the wireless transceiver module and interface circuit with decoding function are added,and in accordance with the arming/disarming commands,the on/off control for the power supply of infrared probe is equipped.By adopting the power-down wake-up function of CPU,the program of measurement and control is written,to realize the design of operation mode under low power consumption.The practical tests and applications show that the design effectively reduces the power consumption of the alarm device,and achieves the capability of 18-month continuously power supplying.The design concept is good reference for designing other mobile solar power supplies and equipment with low power consumption.
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