Geographic location information acquisition method and internal and external network communication device
A technology of geographic location information and geographic location, applied in the field of internal and external network communication devices and geographic location information acquisition, can solve the problems of high cost, high cost and high implementation cost, and achieve the effects of low cost, simple structure and cost reduction.
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[0022] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be described in detail below through specific embodiments and in conjunction with the accompanying drawings.
[0023] Among the present invention, intranet equipment refers to the various equipments in the private network (intranet) that needs to access the external network so as to obtain the requested geographical location information, such as personal computers, servers, network management workstations, etc., and the intranet equipment at least includes A serial port, internal and external network communication device is an embedded network device, used to access the network, with the advantages of low price, good stability, and maintenance-free.
[0024] The internal and external network communication devices and internal network devices are connected through serial ports (RS232, or RS422, or RS485) and use request-response communication protoco...
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