> **应用场景**： >车辆出场，计费系统核算出价格后，调用该接口推送订单详情显示到智慧屏，车主可扫描该信息里的支付二维码进行支付 > 注：如果长时间未收到支付成功回调，建议车场及时发送其他信息（比如完成页 10秒后会刷新回到主页），避免该信息一直显示，被其他车主误扫 字段信息： | 名称 | 说明 | 类型 | 示例 | 是否必传字段 | | --- | --- | --- | --- | --- | service_name |接口名称，出场消息| String| out|是 data_target |上传位置 |String|wisdom_screen |是 channel_id| 通道编号 |String|A11 |是 type| 1:月卡,2:无需缴费,3:缴费成功,4:待支付缴费金额信息 |Number| 4|是 car_number| 车牌号| String|京ABC9991 |是 total |总金额 |String| 2.15|否 ( type=3,4时 必传 ) out_pic |出场图片的base64 编码格式, |String| data:image/jpg;base64,/9j/4AAQSkZJRgABAQAASABIAAD/4RnnRXhpZ...|否 in_pic |进场图片的 base64 编码格式 ,前缀“data:image/jpg;base64,”|String|data:image/jpg;base64,/9j/4AAQSkZJRgABAQAASABIAAD/4RnnRXhpZ... |否 price |需要缴费的金额| String|0.01 |否( type=4 必传 ) reduce_amount |减免金额 ，需带单位“元”| String|4.56元 |否( type=4 必传 ) in_time |入场时间 'yyyy-MM-dd HH:mm:ss'| String| 2020-10-16 08:08:08|否|( type=4 必传 ) duration |停车时长，单位分钟 |String|22 |否( type=4 必传 ) code |出口支付码地址，按接口 7.5 生成| String|http://s.bolink.club/unionapi/thirdtopayorder?params=%5B1602751210742%2C0.01%2C%E4%B8%B4BF4E338%2C20.15%2C1602815671%2C200160%2C21782%2CA11%2C1602815671%5D&sign=d2cdd57437f520735fe27c0ef50a0199 |否( type=4 必传 ) prepay| 已预付金额| String|0.01 |否( type=4 必传 ) state |结果状态，1 成功，0 失败| Number|1 |是 tts|语音播报内容|string|64|否 > 示例： {"service_name":"out","data_target":"wisdom_screen","type":4,"car_number":"京ABC9991","channel_id":"A11","total":"2.15","price":"0.01","reduce_amount":"4.56元","in_time":"2020-10-16 08:08:08","duration":"22","code":"http://s.bolink.club/unionapi/thirdtopayorder?params=%5B1602751210742%2C0.01%2C%E4%B8%B4BF4E338%2C20.15%2C1602815671%2C200160%2C21782%2CA11%2C1602815671%5D&sign=d2cdd57437f520735fe27c0ef50a0199 ","prepay":"0.01","state":1,"tts":"京ABC123,请缴费2.15元"} 初始化同步返回： 字段信息： | 名称 | 说明 | 类型 | 示例 | 是否必传字段 | | --- | --- | --- | --- | --- | service_name| 接口名称|String |out|是 state |初始化状态，0 失败 1 成功| Number| 1|是 errmsg |返回描述 |String| success|是