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发明公开
CN104850520A 一种新型USB多功能转换器及其转换方法 失效 - 权利终止

一种新型USB多功能转换器及其转换方法
摘要：
本发明涉及一种新型USB多功能转换器，包括USB转串口电路，其与信号容错处理电路双向通讯，信号容错处理电路分别与光电隔离及互为转发电路、红外收发电路双向通讯，光电隔离及互为转发电路分别与RS485电路、红外收发电路双向通讯，所述光电隔离及互为转发电路由RS485转红外电路和红外转RS485电路组成，所述红外收发电路由红外发射管D16和用于接收外部红外信号的红外接收管组成的红外接收电路，所述RS485电路与外部RS485终端双向通讯。本发明还公开了一种新型USB多功能转换器的转换方法。本发明在一个转换器上集成了基于USB转串口多种通讯方式，即USB转串口、USB转RS485通讯、USB转红外通讯、RS485转红外通讯和红外转RS485通讯共5种通讯方式，使用范围更加广泛，且成本较低。
摘要（英）：

The present invention relates to a novel multifunctional USB converter, comprising a USB-to-serial-port circuit, wherein the USB-to-serial-port circuit bidirectionally communicates with a signal error tolerance processing circuit; the signal error tolerance processing circuit bidirectionally communicates with a photoelectric isolating and mutual forwarding circuit and an infrared transceiver circuit; the photoelectric isolating and mutual forwarding circuit bidirectionally communicates with an RS485 circuit and the infrared transceiver circuit; the photoelectric isolating and mutual forwarding circuit consists of an RS485-to-infrared circuit and an infrared-to-RS485 circuit; the infrared transceiver circuit consists of an infrared light emitting diode D16 and an infrared light receiving diode used to receive an external infrared signal; the RS485 circuit bidirectionally communicates with an external RS485 terminal. The present invention further discloses a conversion method for the novel multifunctional USB converter. According to the invention, the converter integrates a plurality of USB-to-serial-port based communication methods, that is, totally 5 communication methods: USB-to-serial-port communication, USB-to-RS485 communication, USB-to-infrared communication, RS485-to-infrared communication, infrared-to-RS485 communication. The converter provided by the present invention is wider in application and lower in cost.

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