As an important executive device , the hydraulic valve ' s safe and stable operation is of momentous significance . so real - time monitoring of the valve ' s running status and dynamically setting of its running parameters are needed . also the valve should alarm and handle failure when error occurs 各种电液阀作为一类重要的执行器件,保证其安全稳定的运行意义重大,因此需要对阀的运行状态信息进行有效提取和实时监控,以及在出现故障时报警并做出相应的应急处理。