Device for implementing serial port multiplexing and serial port multiplexing method
A serial port and serial port communication technology, applied in the field of serial interface, can solve problems such as inability to connect to multiple data acquisition instruments, troublesome data sharing, and failure to consider
Active Publication Date: 2015-10-07
LIHE TECH (HUNAN) CO LTD
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[0005] After the monitoring instruments and meters are installed at a monitoring point, there will be environmental protection bureaus at all levels needing to obtain data, but this was not considered in the early stage of construction; in addition, since there is only one output serial port of the instrument, it cannot be connected to multiple data acquisition instruments , causing a lot of trouble for data sharing
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[0025] The present invention will be described in further detail below in conjunction with the accompanying drawings and embodiments. The following examples are used to illustrate the present invention, but should not be used to limit the scope of the present invention.
[0026] A device for realizing serial port multiplexing, the device includes an analysis unit and a storage unit; the analysis unit analyzes the read data according to a first communication protocol, wherein the first communication protocol is serial port communication protocol; the storage unit stores the data analyzed by the analysis unit according to the set rules, and transmits the data according to the second communication protocol when the external device reads the stored data of the storage unit, wherein the The second communication protocol described above is suitable for multiplexing.
[0027] The storage unit encapsulates the protocol according to national or industry standards to obtain the second ...
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The invention discloses a device for realizing serial port multiplexing and a serial port multiplexing method. The method comprises: parsing read data according to a first communication protocol, wherein the first communication protocol is a serial port communication protocol; then storing, according to a set rule, data obtained through parsing; and performing data transmission according to a second communication protocol when an external device reads stored data in a storage unit, wherein the second communication protocol is applicable to multiplexing. The device for implementing serial port multiplexing and the serial port multiplexing method solve the problem of serial port multiplexing, so that multiple data acquisition apparatuses and other equipment can be freely connected to serial ports of a monitoring instrument, to access data and implement data sharing.
Description
technical field [0001] The invention relates to the technical field of serial interfaces, and more specifically relates to a device for realizing multiplexing of serial ports and a method for multiplexing of serial ports. Background technique [0002] In the environmental protection industry, monitoring instruments and meters are used to collect data to be tested in real time, and the collected data is transmitted to other equipment through communication for use by other equipment, such as for data acquisition instruments. The full name of the data acquisition instrument is data acquisition and transmission instrument. A kind of equipment in the environmental protection industry. The communication protocol with the business system of the Environmental Protection Bureau is HJ / T212. The official definition of the data acquisition instrument is as follows: collect data of various types of monitoring instruments and meters, complete data storage and data communication and transmi...
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IPC IPC(8): G06F13/42
CPCG06F13/4282
Inventor 武军贤陈展平
Owner LIHE TECH (HUNAN) CO LTD