CASM CK-FT UAVs are Chinese unmanned blimps developed by Beijing Ceke Spatial Info-tech Co., Ltd. (北京测科空间信息技术有限公司) of Chinese Academy of Surveying and Mapping (CASM, 中国测绘科学研究院), and many of which has entered service with Chinese law enforcement and governmental establishments. CK = Ce Ke (测科), a Chinese abbreviation of Ce-Hui Ke-Xue (测绘科学), which means Surveying and Mapping Science. FT = Fei Ting (飞艇), meaning blimp in Chinese.
References
CASM CK-FT Wikipedia(Text) CC BY-SA