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> 支持 SDK車場、4G 車場
調用該接口查詢指定車場的云端通道信息，以便進行開關閘等操作。
測試地址：http://test.bolink.club/zld/openservice/getchannels
正式地址：http://yun.bolink.club/zld/openservice/getchannels
字段信息：
| 名稱 | 說明 | 類型| 示例 | 是否必傳字段 |
| --- | --- | --- | --- | --- |
comid |車場編號 |String |3251| 是
union_id |廠商平臺賬號| String |200002 |是
query_time|查詢時間 |number|1618905936|是
示例：
{"data": {"comid": "21961","union_id": "200174","query_time": "1618969601"},"sign":"6F8F98781D476C51E4614F8281E34110"}
對 json 進行Base64編碼：
eyJkYXRhIjogeyJjb21pZCI6ICIyMTk2MSIsInVuaW9uX2lkIjogIjIwMDE3NCIsInF1ZXJ5X3RpbWUiOiAiMTYxODk2OTYwMSJ9LCJzaWduIjoiNkY4Rjk4NzgxRDQ3NkM1MUU0NjE0RjgyODFFMzQxMTAifQ==
同步返回:Base64處理過的字符串
| 名稱 | 類型 | 說明| 是否必傳字段| 示例 |
| --- | --- | --- | --- | --- |
state | Number | 調用結果 0失敗，1成功 | 是 | 1
message | String | 提示信息 | 是 | 修改成功
comid | String |車場編號|
channel_list| Array |查詢成功返回的集合數據(以下數據必傳) |是| []
channel_id |String |通道編號
channel_name|String |通道名稱
passtype|string|通道進出方向，1 入口，0 出口|
eyJkYXRhIjp7InN0YXRlIjoxLCJjb21pZCI6IjIxOTYxIiwibWVzc2FnZSI6IuafpeivouaIkOWKnyEiLCJjaGFubmVsX2xpc3QiOlt7ImNoYW5uZWxfbmFtZSI6IuWwj+WcuuWFpeWPoyIsInBhc3N0eXBlIjoiMSIsImNoYW5uZWxfaWQiOiI1MzAzOCJ9LHsiY2hhbm5lbF9uYW1lIjoi5YyX5Lqs5rWL6K+V6L2m5Zy6MTEx5Ye65Y+jIiwicGFzc3R5cGUiOiIxIiwiY2hhbm5lbF9pZCI6IjE4OTEifSx7ImNoYW5uZWxfbmFtZSI6IuWMl+S6rOa1i+ivlei9puWcujExMeWFpeWPoyIsInBhc3N0eXBlIjoiMCIsImNoYW5uZWxfaWQiOiIxODkwIn1dfSwic2lnbiI6IjZGOEY5ODc4MUQ0NzZDNTFFNDYxNEY4MjgxRTM0MTEwIn0=
base64解碼后的結果：
{"data":{"state":1,"comid":"21961","message":"查詢成功!","channel_list":[{"channel_name":"小場入口","passtype":"1","channel_id":"53038"},{"channel_name":"北京測試車場111出口","passtype":"1","channel_id":"1891"},{"channel_name":"北京測試車場111入口","passtype":"0","channel_id":"1890"}]},"sign":"6F8F98781D476C51E4614F8281E34110"}
