A switch control circuit and control method

Abstract

The invention provides a switch control circuit, comprising a blocking module, an electronic switch and an integrating circuit which are connected in sequence. The electronic switch is connected with a power source. The blocking module is used for blocking a non-alternating signal which can pass through the blocking module. The electronic switch is used for controlling the power source to supply power to the integrating circuit, and the power source supplies power to the integrating circuit after the electronic switch is turned on. The electronic switch is alternately in an on or off state under the action of the alternating signal, and the voltage signal of the power source is modulated into an alternating-level signal by the alternating signal. The integrating circuit performs an integral operation on the alternating-level signal to output a high-level signal. According to the invention, the switch control circuit can effectively control a robot, enable various parts of a machine to perform instruction actions, achieve power switch control and various protection instructions, and the like. The switch control circuit has strong anti-interference capability and the possibility of malfunction is low.

Description

technical field [0001] The invention belongs to the technical field of robot control, and in particular relates to a highly reliable switch control circuit and a control method. Background technique [0002] In the existing robot industry technology, there are multiple control circuit boards inside the robot, which control the actions of various parts of the machine, as well as the switch control of the power supply and various protection commands. Usually when the command is executed, the main control MCU issues the command, and the control module outputs the command to the electronic switch through a high level or low level after receiving the command, so as to realize the switch control of the power supply and various protection commands. When a constant high level or low level output command is used, there is a possibility of misoperation. For example, at the beginning of the hardware system’s initial power-on, the IO pins of the MCU may appear in a high-impedance state ...

AI Technical Summary

Problems solved by technology

When a constant high level or low level output command is used, there is a possibility of misoperation. For example, at the initial stage of power-on of the hardware system, the IO pin of the MCU may appear in a high impedance state or output a high level directly for a short time, while Under normal circumstances, the original intention of the design is to output a low level, and there may be false triggering or malfunction of the signal, and when there is interference or poor contact on the signal line or excessive impact, the signal that needs to maintain a high level signal may appear Instantaneous low level, if the level is quickly responded to, it may cause malfunction of the machine

For example, a key signal such as the power switch of the radar, if there is a power failure in an instant, it will cause the frame loss of the radar data, which will affect the map construction

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