Third, to realize transmissing of the basic information of ICS, wireless channels are used to make a short-range transmissing of relevant information and Internet and PSTN for long-range transmissing.

• 第三，为了实现城市安全防范基本信息的传输，首先利用无线通信信道，来完成相关信息的短距离传输：其次采用互联网和PSTN网作为传输信道，完成了相关信息的远程自动化传输。