本协议规定了充电桩与新能源管理信息系统之间数据交互的流程、格式和内容。协议整体依据国网104充电桩规约,新增数据部分协议参照GBT-27930对充电桩充电过程中与新能源管理信息系统的交互数据进行了补充,本协议适用于交直流,交流在本协议中部分数据无需上送数据项在下面协议部分均有标注。
充电桩和新能源管理信息系统之间的通信接口采用基于 TCP/IP Socket 的通信方式实现,按照长连接工作模式。两个系统可部署在同一个或者不同的企业网络环境中,可以通过局域网或者互联网实现互相连接通信。
充电桩通信联接方式支持有线网络接口、无线 GPRS 连接运营平台服务器或者多个充电桩经过集中器与运营平台连接。
充电桩支持服务器的直接 IP 地址与网络域名解析,地址与连接端口均为可设置参数,测试服务器地址为121.199.192.223,端口号为8768。
桩企按照协议内容开发完成后,首先平台会分配测试桩的设备编号以及平台登陆账户,桩企可以登陆测试平台查看测试桩与平台的上行下数据帧以及上行数据解析内容,在数据帧解析通过后,平台会提供充电app测试版本(只支持安卓手机)以及充电卡来对整个充电流程进行调试,最后在测试环境测试通过后,由平台提供正式环境的相关配置信息。
本协议的通信协议结构如图1所示。本协议采用的TCP/IP传输定义与标准定义一致。
数据结构定义说明:
数据格式包括BCD码、BIN码、ASCII,BIN码均为低位在前高位在后。协议中小数值均乘倍率(保留小数点位数)上送平台(例如:电压为225.1,保留一位小数,上送到平台值为2251,即0x8CB)。CP56Time2a格式如下:
充电桩定义的帧类型码为奇数,运营平台定义的帧类型码为偶数;帧类型码分段定义,已定义的帧类型码不可重定义为其他定义;
充电桩在上电或者离线恢复后连接到新能源管理信息系统,首先上送充电桩登陆认证,平台对桩的信息进行校验,并回复登陆认证应答,如果不符合则会断开当前建立的连接,如果验证通过,则桩先检查是否有离线状态下本地储存的实时监测数据或者交易数据,如果有则先上送到平台进行处理,随后充电桩发起充电计费模型的请求,平台检测计费模型与当前运营费率是否一致,并回复计费模型请求应答,如果不一致,桩需要向平台请求新的计费模型。
app充电流程与刷卡充电流程互通,即app充电可以用卡结束,app鉴权时会将用户绑定的卡信息下发到充电桩,用于卡结束验证,卡充电可以用app结束充电。
地锁状态变化需要传输给平台,若地锁出现故障,则传输故障码至平台,若检测出现故障则,默认地锁为降下状态;若为升降出现故障,则保持现有状态
CRC(Cyclical Redundancy Check)由两字节组成,生成函数如下:
1、CRC计算函数
WORD ModbusCRC(BYTE * pData, BYTE len)
{
BYTE byCRCHi = 0xff;
BYTE byCRCLo = 0xff;
BYTE byIdx;
WORD crc;
while(len--)
{
byIdx = byCRCHi ^* pData++;
byCRCHi = byCRCLo ^ gabyCRCHi[byIdx];
byCRCLo = gabyCRCLo[byIdx];
}
crc = byCRCHi;
crc <<= 8;
crc += byCRCLo;
return crc;
}
CRC 码表高字节
BYTE gabyCRCHi[] =
{
0x00,0xc1,0x81,0x40,0x01,0xc0,0x80,0x41,0x01,0xc0,
0x80,0x41,0x00,0xc1,0x81,0x40,0x01,0xc0,0x80,0x41,
0x00,0xc1,0x81,0x40,0x00,0xc1,0x81,0x40,0x01,0xc0,
0x80,0x41,0x01,0xc0,0x80,0x41,0x00,0xc1,0x81,0x40,
0x00,0xc1,0x81,0x40,0x01,0xc0,0x80,0x41,0x00,0xc1,
0x81,0x40,0x01,0xc0,0x80,0x41,0x01,0xc0,0x80,0x41,
0x00,0xc1,0x81,0x40,0x01,0xc0,0x80,0x41,0x00,0xc1,
0x81,0x40,0x00,0xc1,0x81,0x40,0x01,0xc0,0x80,0x41,
0x00,0xc1,0x81,0x40,0x01,0xc0,0x80,0x41,0x01,0xc0,
0x80,0x41,0x00,0xc1,0x81,0x40,0x00,0xc1,0x81,0x40,
0x01,0xc0,0x80,0x41,0x01,0xc0,0x80,0x41,0x00,0xc1,
0x81,0x40,0x01,0xc0,0x80,0x41,0x00,0xc1,0x81,0x40,
0x00,0xc1,0x81,0x40,0x01,0xc0,0x80,0x41,0x01,0xc0,
0x80,0x41,0x00,0xc1,0x81,0x40,0x00,0xc1,0x81,0x40,
0x01,0xc0,0x80,0x41,0x00,0xc1,0x81,0x40,0x01,0xc0,
0x80,0x41,0x01,0xc0,0x80,0x41,0x00,0xc1,0x81,0x40,
0x00,0xc1,0x81,0x40,0x01,0xc0,0x80,0x41,0x01,0xc0,
0x80,0x41,0x00,0xc1,0x81,0x40,0x01,0xc0,0x80,0x41,
0x00,0xc1,0x81,0x40,0x00,0xc1,0x81,0x40,0x01,0xc0,
0x80,0x41,0x00,0xc1,0x81,0x40,0x01,0xc0,0x80,0x41,
0x01,0xc0,0x80,0x41,0x00,0xc1,0x81,0x40,0x01,0xc0,
0x80,0x41,0x00,0xc1,0x81,0x40,0x00,0xc1,0x81,0x40,
0x01,0xc0,0x80,0x41,0x01,0xc0,0x80,0x41,0x00,0xc1,
0x81,0x40,0x00,0xc1,0x81,0x40,0x01,0xc0,0x80,0x41,
0x00,0xc1,0x81,0x40,0x01,0xc0,0x80,0x41,0x01,0xc0,
0x80,0x41,0x00,0xc1,0x81,0x40
};
CRC 码表高字节
BYTE gabyCRCLo[] =
{
0x00,0xc0,0xc1,0x01,0xc3,0x03,0x02,0xc2,0xc6,0x06,
0x07,0xc7,0x05,0xc5,0xc4,0x04,0xcc,0x0c,0x0d,0xcd,
0x0f,0xcf,0xce,0x0e,0x0a,0xca,0xcb,0x0b,0xc9,0x09,
0x08,0xc8,0xd8,0x18,0x19,0xd9,0x1b,0xdb,0xda,0x1a,
0x1e,0xde,0xdf,0x1f,0xdd,0x1d,0x1c,0xdc,0x14,0xd4,
0xd5,0x15,0xd7,0x17,0x16,0xd6,0xd2,0x12,0x13,0xd3,
0x11,0xd1,0xd0,0x10,0xf0,0x30,0x31,0xf1,0x33,0xf3,
0xf2,0x32,0x36,0xf6,0xf7,0x37,0xf5,0x35,0x34,0xf4,
0x3c,0xfc,0xfd,0x3d,0xff,0x3f,0x3e,0xfe,0xfa,0x3a,
0x3b,0xfb,0x39,0xf9,0xf8,0x38,0x28,0xe8,0xe9,0x29,
0xeb,0x2b,0x2a,0xea,0xee,0x2e,0x2f,0xef,0x2d,0xed,
0xec,0x2c,0xe4,0x24,0x25,0xe5,0x27,0xe7,0xe6,0x26,
0x22,0xe2,0xe3,0x23,0xe1,0x21,0x20,0xe0,0xa0,0x60,
0x61,0xa1,0x63,0xa3,0xa2,0x62,0x66,0xa6,0xa7,0x67,
0xa5,0x65,0x64,0xa4,0x6c,0xac,0xad,0x6d,0xaf,0x6f,
0x6e,0xae,0xaa,0x6a,0x6b,0xab,0x69,0xa9,0xa8,0x68,
0x78,0xb8,0xb9,0x79,0xbb,0x7b,0x7a,0xba,0xbe,0x7e,
0x7f,0xbf,0x7d,0xbd,0xbc,0x7c,0xb4,0x74,0x75,0xb5,
0x77,0xb7,0xb6,0x76,0x72,0xb2,0xb3,0x73,0xb1,0x71,
0x70,0xb0,0x50,0x90,0x91,0x51,0x93,0x53,0x52,0x92,
0x96,0x56,0x57,0x97,0x55,0x95,0x94,0x54,0x9c,0x5c,
0x5d,0x9d,0x5f,0x9f,0x9e,0x5e,0x5a,0x9a,0x9b,0x5b,
0x99,0x59,0x58,0x98,0x88,0x48,0x49,0x89,0x4b,0x8b,
0x8a,0x4a,0x4e,0x8e,0x8f,0x4f,0x8d,0x4d,0x4c,0x8c,
0x44,0x84,0x85,0x45,0x87,0x47,0x46,0x86,0x82,0x42,
0x43,0x83,0x41,0x81,0x80,0x40
};
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