Adaptive io monitor

Abstract

An adaptive IO monitor includes two controlled current sources, two uncontrolled current sources, a current-limit switch controller and external ports; the two controlled current sources are respectively controlled Switching current-limiting driver I and controlled switching current-limiting driver II; the two uncontrolled current sources are respectively uncontrolled current source I and uncontrolled current source II; the external ports include load-driven power supply ports , the load driving power output port, the working power input port of the self-adaptive IO monitor, the input port of the load state detection signal, the bidirectional port II and the common port; The bidirectional port shared by the output control signal input; the bidirectional port II Di / o of the self-adaptive IO monitor has bidirectional performance and does not require direction line control, and can timely reflect the presence or absence of the driven load to the control system through the load driving line .

Description

technical field [0001] The invention relates to an adaptive IO monitor, in particular to a signal level state detection and load drive control technology in the field of automatic control, is an adaptive input and output control technology that does not require a direction control line, and is suitable for an artificial intelligence control system The intelligent transformation project of the field and the existing system. Background technique [0002] In practical applications, for the application environment where the I / O resources of the controller are scarce, when the input or output interface resources of the microcontroller are not enough, they must be expanded through peripheral circuits; when the expanded I / O ports need to be expanded In the case of bidirectional operation, it is necessary to configure the direction control line through the expansion of the peripheral circuit, which increases the consumption of the microcontroller's own I / O resources, which are alrea...

AI Technical Summary

Problems solved by technology

[0004] In the process of project debugging, if it is found that there is insufficient quantity in one direction (input or output direction) in the previously reserved input or output quantity, although the other direction quantity (output or input direction) still has enough surplus quantity, it is still necessary The problem can only be solved by increasing the required direction of the equipment, resulting in the previously set plan having to be modified

[0005] For traditional control systems, the control output line cannot reflect the presence or absence of resistive loads, which is a serious defect for safety indications (the safety indicator lights cannot be reflected to the control system after being burned out), let alone Provide useful contributions to the era of artificial intelligence

Images