| With the development of society,the importance of ecological protection has gradually become prominent."Green water and green mountains are golden and silver mountains" deeply rooted in the hearts of the people.Animal protection is an important part of ecological protection.Species resource surveys provide data support for animal protection.Through infrared touch automatic digital camera trap technology,survey costs can be reduced and the survey cycle can be shortened.However,the current camera traps still have the disadvantages of false triggering and the inability to transmit data in real time,and they need to be improved.Based on the usage scenarios and requirements proposed by the Chengdu Research Base of Giant Panda Breeding,this paper designs a set of intelligent field camera traps with detection functions that can return video data in real time.The main contents are as follows:1.According to the needs of monitoring giant panda reintroduction training and realtime return video,technically selected animal detection methods based on convolutional neural networks,network methods based on Wi-Fi and Lo-Ra,and low-light solar power generation Methods Extend the battery life of the camera,and get the overall design plan of the intelligent field Infrared triggered camera,which is specifically divided into the intelligent shooting module,the data transmission module and the power management module.2.Design the smart shooting module based on the species detection method.The hardware circuit is implemented around the camera So C based on the integrated NPU,and the WL-SSD algorithm is used to implement animal detection on the camera,and the shooting process is improved according to the detection algorithm,which suppresses the continuous false triggering of the camera trap,and through the variable bit rate And the method of inter-frame prediction reduces the video bit rate.3.The data transmission module is designed based on Wi-Fi and Lo-Ra solutions.The camera So C is connected to a high-power Wi-Fi routing module,and a long-distance Wi-Fi connection is realized through an 8d B gain antenna,and a long-distance low-speed communication is realized through a Lo-Ra radio frequency module.Real-time video transmission based on RTSP when Wi-Fi is connected,and narrowband communication and control of the camera when Wi-Fi is disconnected.4 Design the power management module based on the photovoltaic power generation scheme.The charge management chip based on the MMPT algorithm is used to realize the hardware design of low-light photovoltaic power generation,and the DC-DC and LDO power transformer chips are selected according to the demand to realize the power supply for the intelligent outdoor camera trap.The single-chip microcomputer is used to control the charging and discharging of the double batteries,and the design is designed to increase the solar energy utilization rate.5.The integration of the smart shooting module,data transmission module and power management module was completed and the shell structure was designed.The shooting,detection,data recovery and real-time video transmission tests were carried out in the outdoor environment.The intelligent field camera trap designed in this paper has passed Party A’s acceptance,and all indicators meet the requirements of Party A.It is currently being tried out at the Giant Panda Reintroduction Training Ground in Daxiangling Nature Reserve,and is being used to build species based on intelligent camera traps.Relevant research on protection of intelligence. |
