Backup switching device of process control system
专利汇可以提供Backup switching device of process control system专利检索，专利查询，专利分析的服务。并且PURPOSE:To simplify a station by reducing a load on software by delaying the operation of a relay when a main controller recovers from a fault by using an R-S flip-flop, and stopping the recovery of a watch dog timer during the period. CONSTITUTION:When a main controller 1 is shut down and a watch dog timer WDT detects that, a transistor 11 turns off and a collector output WDTM from the controller 1 goes up to a 1. Consequently, the output R of an R-S FF41 goes up to the 1, the S goes down to a 0, and the output -Q goes up to the 1 to turn on a relay RY, switching contacts S1 and S2 to terminals (b). An operation terminal 3 is threrefore connected to the side of a subordinate controller 2. If the controller 1 recovers during the control of the controller 2, its WDT recovers, but the FF41 has the R and S helt at the 0, so the operation terminal 3 is still connected to the controller 2 side, so that the operation is continued still under the control of the controller 2.，下面是Backup switching device of process control system专利的具体信息内容。
| 标题 | 发布/更新时间 | 阅读量 |
|---|---|---|
| 一种嵌入式数字振荡无线遥控器控制方法 | 2020-05-08 | 194 |
| 面向中低频正弦信号的频率故障注入器 | 2020-05-11 | 414 |
| 一种食品安全检测方法 | 2020-05-11 | 336 |
| 智能水龙头手势感应出水方法及系统 | 2020-05-13 | 414 |
| 一种计算系统、自动诊断方法及存储有其指令的介质 | 2020-05-11 | 171 |
| 一种肺功能数据传输的软件实现方法 | 2020-05-14 | 793 |
| 一种飞机伺服作动系统开车前自检方法 | 2020-05-12 | 443 |
| 基于二取二安全控制单元的硬件功能测试系统及方法 | 2020-05-08 | 104 |
| 一种多核处理系统的看门狗系统及控制方法 | 2020-05-08 | 672 |
| 一种基于看门狗复位、心跳电路实现超低功耗的控制方法 | 2020-05-13 | 766 |
高效检索全球专利专利汇是专利免费检索,专利查询,专利分析-国家发明专利查询检索分析平台，是提供专利分析，专利查询，专利检索等数据服务功能的知识产权数据服务商。
我们的产品包含105个国家的1.26亿组数据，免费查、免费专利分析。
专利汇分析报告产品可以对行业情报数据进行梳理分析，涉及维度包括行业专利基本状况分析、地域分析、技术分析、发明人分析、申请人分析、专利权人分析、失效分析、核心专利分析、法律分析、研发重点分析、企业专利处境分析、技术处境分析、专利寿命分析、企业定位分析、引证分析等超过60个分析角度，系统通过AI智能系统对图表进行解读，只需1分钟，一键生成行业专利分析报告。
