摘要：【中文】本发明创造提供了一种可检测环路的报警输入电路及检测方法，包括报警发生器、匹配电阻、报警输入电路以及电压比较器电路，所述报警发生器的输出端与报警输入电路的输入接口连接，匹配电阻与报警发生器并联；所述报警输入电路的输出接口与电压比较器电路连接。本发明创造通过将报警器环路与电压比较器相结合，降低了施工和使用成本，增加了环路通断的检测功能，通过施工和低成本的比较器电路的配合，可以检测环路被破坏断开的情况，有利于提升监控系统的安全性；同时通过增加环路检测功能，可以提升监控系统的安全性，避免报警功能被破坏性断开导致的报警功能失效。 【EN】The invention has created and provided an alarm input circuit and detection method that can detect the loop, including alarm generator, matching resistance, alarm input circuit and voltage comparator circuit, the output terminal of the said alarm generator is connected with input interface of the alarm input circuit, the matching resistance is connected with the alarm generator in parallel; and the output interface of the alarm input circuit is connected with the voltage comparator circuit. According to the invention, the alarm loop is combined with the voltage comparator, so that the construction and use cost is reduced, the detection function of loop on-off is increased, the situation that the loop is broken and disconnected can be detected through the cooperation of the construction and the low-cost comparator circuit, and the safety of a monitoring system is favorably improved; meanwhile, by adding the loop detection function, the safety of the monitoring system can be improved, and the failure of the alarm function caused by the destructive disconnection of the alarm function is avoided.

摘要：【中文】本发明创造提供了一种支持可拔插双电源的监控主机，包括机箱，机箱内设有主机板、储存模块、第一电源模块和第二电源模块、电源控制芯片；所述储存模块与主机板电性连接；所述第一电源模块电性连接于主机板与储存模块；所述第二电源模块电性连接于主机板与储存模块；所述第一电源模块和第二电源模块分别连接电源控制芯片。本发明创造所述的一种支持可拔插双电源的监控主机提高了电源稳定性，降低了设备因为电源故障而造成损失的可能；同时电源支持热拔插，提高了可维护性，单电故障，不用给设备断电即可更换维护。 【EN】The invention provides a monitoring host supporting pluggable dual power supplies, which comprises a case, wherein a host board, a storage module, a first power supply module, a second power supply module and a power supply control chip are arranged in the case; the storage module is electrically connected with the mainboard; the first power supply module is electrically connected with the mainboard and the storage module; the second power supply module is electrically connected with the mainboard and the storage module; the first power supply module and the second power supply module are respectively connected with the power supply control chip. The monitoring host supporting the pluggable dual power supplies improves the stability of the power supplies and reduces the possibility of loss of equipment due to power supply failure; meanwhile, the power supply supports hot plugging, maintainability is improved, single power failure is realized, and the equipment can be replaced and maintained without power failure.