diff --git a/et_calc/dataCalc.go b/et_calc/dataCalc.go
index a6c4310..93f0e0d 100644
--- a/et_calc/dataCalc.go
+++ b/et_calc/dataCalc.go
@@ -107,11 +107,16 @@ func (the *CalcHandler) calcFormula(p *common_models.ProcessData) *common_models
 					log.Printf("设备[%s]字段[%s]无绑定的监测原型[%s-%s] 字段输出", device.IotaDeviceId, inK, protoObj.Name, protoObj.Code)
 					continue
 				}
+
 				outUnit := protoObj.GetProtoItem(outKey).UnitName
 				k := the.unitHelper.GetUnitTransK(inUnit, outUnit)
 				if v, ok := inV.(float64); ok {
 					outMap[outKey] = common_calc.Decimal(v*k, 5)
 				} else {
+					if inV == "nil" {
+						//数据模拟工具出现的称重 lane异常值  跳过
+						continue
+					}
 					outMap[outKey] = inV
 				}