OptimizeToursRequest 会对以下各项应用限制条件：
- 运单（影响运单的执行方式）
- 车辆（影响车辆路线的计算方式）
- 在全球范围内影响车辆和货运。
本指南重点介绍一项基本的配送限制：时间窗口。
时间窗口是您在 OptimizeToursRequest 消息（REST、gRPC）中提供的一种限制条件，可用于为配送活动指定基于时间的限制。此类约束会影响货运的执行时间和方式以及货物的车辆分配。根据这些约束条件，优化器会优先考虑最能满足装运时间约束的车辆。
装运限制：时间范围
您可以在 Shipment.VisitRequest 消息中指定自提或送餐时间，如下所示：
具有时间范围限制的请求示例
此处的示例展示了三种不同的运单，每个运单都有自己的送货时间范围。为简单起见，此示例仅在 deliveries 上设置时间范围，但时间范围也可以应用于上车点。可以指定多个时间范围，但此示例仅使用每个传送 VisitRequest 一个时间范围。
查看带有时间范围的示例请求
{
"populatePolylines": false,
"populateTransitionPolylines": false,
"model": {
"globalStartTime": "2023-01-13T16:00:00Z",
"globalEndTime": "2023-01-14T16:00:00Z",
"shipments": [
{
"deliveries": [
{
"arrivalLocation": {
"latitude": 37.789456,
"longitude": -122.390192
},
"duration": "250s",
"timeWindows": [
{
"startTime": "2023-01-13T18:00:00Z",
"endTime": "2023-01-13T19:00:00Z"
}
]
}
],
"pickups": [
{
"arrivalLocation": {
"latitude": 37.794465,
"longitude": -122.394839
},
"duration": "150s"
}
],
"penaltyCost": 100.0
},
{
"deliveries": [
{
"arrivalLocation": {
"latitude": 37.789116,
"longitude": -122.395080
},
"duration": "250s",
"timeWindows": [
{
"startTime": "2023-01-13T18:00:00Z",
"endTime": "2023-01-13T18:30:00Z"
}
]
}
],
"pickups": [
{
"arrivalLocation": {
"latitude": 37.794465,
"longitude": -122.394839
},
"duration": "150s"
}
],
"penaltyCost": 20.0
},
{
"deliveries": [
{
"arrivalLocation": {
"latitude": 37.795242,
"longitude": -122.399347
},
"duration": "250s",
"timeWindows": [
{
"startTime": "2023-01-13T17:30:00Z",
"endTime": "2023-01-13T18:00:00Z"
}
]
}
],
"pickups": [
{
"arrivalLocation": {
"latitude": 37.794465,
"longitude": -122.394839
},
"duration": "150s"
}
],
"penaltyCost": 50.0
}
],
"vehicles": [
{
"endLocation": {
"latitude": 37.794465,
"longitude": -122.394839
},
"startLocation": {
"latitude": 37.794465,
"longitude": -122.394839
},
"costPerHour": 40.0,
"costPerKilometer": 10.0
}
]
}
}
包含时间范围限制的响应示例
在示例响应中，车辆的开始时间和结束时间分别是 17:35:50 和 18:17:24。这些时间反映了优化器最大限度地缩短了操作请求中指定的车辆（以 costPerHour 形式表示）所需的时间，同时满足所有时间窗口限制。将开始时间设为 17:35:50，这样车辆就无需在造访地点等到到访时间范围开始。这在响应中显示为零 waitDuration 值。
查看对示例请求的响应及时间范围
{
"routes": [
{
"vehicleStartTime": "2023-01-13T17:35:50Z",
"vehicleEndTime": "2023-01-13T18:17:24Z",
"visits": [
{
"isPickup": true,
"startTime": "2023-01-13T17:35:50Z",
"detour": "0s"
},
{
"shipmentIndex": 1,
"isPickup": true,
"startTime": "2023-01-13T17:38:20Z",
"detour": "150s"
},
{
"shipmentIndex": 2,
"isPickup": true,
"startTime": "2023-01-13T17:40:50Z",
"detour": "300s"
},
{
"shipmentIndex": 2,
"startTime": "2023-01-13T17:50:09Z",
"detour": "0s"
},
{
"shipmentIndex": 1,
"startTime": "2023-01-13T18:00:00Z",
"detour": "796s"
},
{
"startTime": "2023-01-13T18:07:35Z",
"detour": "1520s"
}
],
"transitions": [
{
"travelDuration": "0s",
"waitDuration": "0s",
"totalDuration": "0s",
"startTime": "2023-01-13T17:35:50Z"
},
{
"travelDuration": "0s",
"waitDuration": "0s",
"totalDuration": "0s",
"startTime": "2023-01-13T17:38:20Z"
},
{
"travelDuration": "0s",
"waitDuration": "0s",
"totalDuration": "0s",
"startTime": "2023-01-13T17:40:50Z"
},
{
"travelDuration": "409s",
"travelDistanceMeters": 1371,
"waitDuration": "0s",
"totalDuration": "409s",
"startTime": "2023-01-13T17:43:20Z"
},
{
"travelDuration": "341s",
"travelDistanceMeters": 1312,
"waitDuration": "0s",
"totalDuration": "341s",
"startTime": "2023-01-13T17:54:19Z"
},
{
"travelDuration": "205s",
"travelDistanceMeters": 636,
"waitDuration": "0s",
"totalDuration": "205s",
"startTime": "2023-01-13T18:04:10Z"
},
{
"travelDuration": "339s",
"travelDistanceMeters": 1276,
"waitDuration": "0s",
"totalDuration": "339s",
"startTime": "2023-01-13T18:11:45Z"
}
],
"metrics": {
"performedShipmentCount": 3,
"travelDuration": "1294s",
"waitDuration": "0s",
"delayDuration": "0s",
"breakDuration": "0s",
"visitDuration": "1200s",
"totalDuration": "2494s",
"travelDistanceMeters": 4595
},
"routeCosts": {
"model.vehicles.cost_per_hour": 27.711111111111112,
"model.vehicles.cost_per_kilometer": 45.95
},
"routeTotalCost": 73.661111111111111
}
],
"metrics": {
"aggregatedRouteMetrics": {
"performedShipmentCount": 3,
"travelDuration": "1294s",
"waitDuration": "0s",
"delayDuration": "0s",
"breakDuration": "0s",
"visitDuration": "1200s",
"totalDuration": "2494s",
"travelDistanceMeters": 4595
},
"usedVehicleCount": 1,
"earliestVehicleStartTime": "2023-01-13T17:35:50Z",
"latestVehicleEndTime": "2023-01-13T18:17:24Z",
"totalCost": 73.661111111111111,
"costs": {
"model.vehicles.cost_per_hour": 27.711111111111112,
"model.vehicles.cost_per_kilometer": 45.95
}
}
}
时间窗口已对车辆的 visits 进行排序，以便时间窗口最早的货物最先送达。
shipments[2]于 17:50 送达shipments[1]于 18:00 送达shipments[0]于 18:07 送达
示例请求指定了硬性时间范围限制，要求在该时间范围内完成传送。如果在任何时间范围内完成运单的 VisitRequests 不可行或不具有成本效益，优化器会跳过该运单。如果运单具有 penaltyCost，优化器会将其添加到响应 metrics 中报告的费用中。否则，OptimizeToursResponse 消息（REST、gRPC）的 skippedMandatoryShipmentCount 属性会增加。
如果您通过将 shipment[1] 的时间范围调晚几小时（从 18:00 改为 21:00）来更改时间范围，结果将有所不同，如以下示例所示。
查看包含无法满足的时间范围的请求示例
{
"populatePolylines": false,
"populateTransitionPolylines": false,
"model": {
"globalStartTime": "2023-01-13T16:00:00Z",
"globalEndTime": "2023-01-14T16:00:00Z",
"shipments": [
{
"deliveries": [
{
"arrivalLocation": {
"latitude": 37.789456,
"longitude": -122.390192
},
"duration": "250s",
"timeWindows": [
{
"startTime": "2023-01-13T18:00:00Z",
"endTime": "2023-01-13T19:00:00Z"
}
]
}
],
"pickups": [
{
"arrivalLocation": {
"latitude": 37.794465,
"longitude": -122.394839
},
"duration": "150s"
}
],
"penaltyCost": 100.0
},
{
"deliveries": [
{
"arrivalLocation": {
"latitude": 37.789116,
"longitude": -122.395080
},
"duration": "250s",
"timeWindows": [
{
"startTime": "2023-01-13T21:00:00Z",
"endTime": "2023-01-13T21:30:00Z"
}
]
}
],
"pickups": [
{
"arrivalLocation": {
"latitude": 37.794465,
"longitude": -122.394839
},
"duration": "150s"
}
],
"penaltyCost": 20.0
},
{
"deliveries": [
{
"arrivalLocation": {
"latitude": 37.795242,
"longitude": -122.399347
},
"duration": "250s",
"timeWindows": [
{
"startTime": "2023-01-13T17:30:00Z",
"endTime": "2023-01-13T18:00:00Z"
}
]
}
],
"pickups": [
{
"arrivalLocation": {
"latitude": 37.794465,
"longitude": -122.394839
},
"duration": "150s"
}
],
"penaltyCost": 50.0
}
],
"vehicles": [
{
"endLocation": {
"latitude": 37.794465,
"longitude": -122.394839
},
"startLocation": {
"latitude": 37.794465,
"longitude": -122.394839
},
"costPerHour": 40.0,
"costPerKilometer": 10.0
}
]
}
}
查看对第二个示例请求的响应（包含时间范围，其中会跳过发货）
{
"routes": [
{
"vehicleStartTime": "2023-01-13T17:37:49Z",
"vehicleEndTime": "2023-01-13T18:09:49Z",
"visits": [
{
"isPickup": true,
"startTime": "2023-01-13T17:37:49Z",
"detour": "0s"
},
{
"shipmentIndex": 2,
"isPickup": true,
"startTime": "2023-01-13T17:40:19Z",
"detour": "150s"
},
{
"shipmentIndex": 2,
"startTime": "2023-01-13T17:49:38Z",
"detour": "0s"
},
{
"startTime": "2023-01-13T18:00:00Z",
"detour": "946s"
}
],
"transitions": [
{
"travelDuration": "0s",
"waitDuration": "0s",
"totalDuration": "0s",
"startTime": "2023-01-13T17:37:49Z"
},
{
"travelDuration": "0s",
"waitDuration": "0s",
"totalDuration": "0s",
"startTime": "2023-01-13T17:40:19Z"
},
{
"travelDuration": "409s",
"travelDistanceMeters": 1371,
"waitDuration": "0s",
"totalDuration": "409s",
"startTime": "2023-01-13T17:42:49Z"
},
{
"travelDuration": "372s",
"travelDistanceMeters": 1348,
"waitDuration": "0s",
"totalDuration": "372s",
"startTime": "2023-01-13T17:53:48Z"
},
{
"travelDuration": "339s",
"travelDistanceMeters": 1276,
"waitDuration": "0s",
"totalDuration": "339s",
"startTime": "2023-01-13T18:04:10Z"
}
],
"metrics": {
"performedShipmentCount": 2,
"travelDuration": "1120s",
"waitDuration": "0s",
"delayDuration": "0s",
"breakDuration": "0s",
"visitDuration": "800s",
"totalDuration": "1920s",
"travelDistanceMeters": 3995
},
"routeCosts": {
"model.vehicles.cost_per_kilometer": 39.95,
"model.vehicles.cost_per_hour": 21.333333333333332
},
"routeTotalCost": 61.283333333333331
}
],
"skippedShipments": [
{
"index": 1
}
],
"metrics": {
"aggregatedRouteMetrics": {
"performedShipmentCount": 2,
"travelDuration": "1120s",
"waitDuration": "0s",
"delayDuration": "0s",
"breakDuration": "0s",
"visitDuration": "800s",
"totalDuration": "1920s",
"travelDistanceMeters": 3995
},
"usedVehicleCount": 1,
"earliestVehicleStartTime": "2023-01-13T17:37:49Z",
"latestVehicleEndTime": "2023-01-13T18:09:49Z",
"totalCost": 81.283333333333331,
"costs": {
"model.shipments.penalty_cost": 20,
"model.vehicles.cost_per_hour": 21.333333333333332,
"model.vehicles.cost_per_kilometer": 39.95
}
}
}
在本示例中，较晚的时段导致系统跳过 shipment[1]，因为在指定时间范围内完成货物交付所需的额外车辆运营时间超出了运单的罚款费用。shipment[1] 的处罚成本显示在 metrics.costs 中，其索引显示在 skippedShipments 中。
软时间窗口限制
如费用模型参数中简要提到的那样，时间范围可以作为“软”约束条件应用。软约束与硬约束的不同之处如下：
- 硬性约束条件：不能违反，且优化器不会提供违反该约束条件的解决方案，即使这意味着跳过发货即可。
- 软约束：可能会违反，这意味着优化器可能会提供违反软约束的解决方案。不过，优化器也会对任何违规行为应用成本。您需要将此费用作为时间窗口中的额外属性提供，通常是活动发生时间窗口之前或之后每小时的每小时费用。
分别使用 softStartTime 或 softEndTime（而不是 startTime 或 endTime）并设置 costPerHourBeforeSoftStartTime 或 costPerHourAfterSoftEndTime 来柔化时间范围。
如果应该在指定时间范围内取货或送货，但并不强制要求在该时间段内取货或送货，请使用软时间范围限制。您可以将硬时间窗口限制和软时间窗口限制结合使用来表达业务目标。例如：
- 硬性时间范围：表示客户的营业时间，例如从上午 9 点至下午 5 点。
- 软时间窗口：表示与发送给客户的通知相匹配的送货或自提时间范围，例如上午 9 点至下午 1 点。
在此示例中，之前因时间范围开始太晚而被跳过的运单，其开始时间限制放宽了。其他飞船的结束时间也已经放宽。
查看包含硬时间范围和软时间范围的请求示例
{
"populatePolylines": false,
"populateTransitionPolylines": false,
"model": {
"globalStartTime": "2023-01-13T16:00:00Z",
"globalEndTime": "2023-01-14T16:00:00Z",
"shipments": [
{
"deliveries": [
{
"arrivalLocation": {
"latitude": 37.789456,
"longitude": -122.390192
},
"duration": "250s",
"timeWindows": [
{
"startTime": "2023-01-13T18:00:00Z",
"softEndTime": "2023-01-13T19:00:00Z",
"costPerHourAfterSoftEndTime": 2.0
}
]
}
],
"pickups": [
{
"arrivalLocation": {
"latitude": 37.794465,
"longitude": -122.394839
},
"duration": "150s"
}
],
"penaltyCost": 100.0
},
{
"deliveries": [
{
"arrivalLocation": {
"latitude": 37.789116,
"longitude": -122.395080
},
"duration": "250s",
"timeWindows": [
{
"softStartTime": "2023-01-13T21:00:00Z",
"endTime": "2023-01-13T21:30:00Z",
"costPerHourBeforeSoftStartTime": 2.0
}
]
}
],
"pickups": [
{
"arrivalLocation": {
"latitude": 37.794465,
"longitude": -122.394839
},
"duration": "150s"
}
],
"penaltyCost": 20.0
},
{
"deliveries": [
{
"arrivalLocation": {
"latitude": 37.795242,
"longitude": -122.399347
},
"duration": "250s",
"timeWindows": [
{
"startTime": "2023-01-13T17:30:00Z",
"softEndTime": "2023-01-13T18:00:00Z",
"costPerHourAfterSoftEndTime": 2.0
}
]
}
],
"pickups": [
{
"arrivalLocation": {
"latitude": 37.794465,
"longitude": -122.394839
},
"duration": "150s"
}
],
"penaltyCost": 50.0
}
],
"vehicles": [
{
"endLocation": {
"latitude": 37.794465,
"longitude": -122.394839
},
"startLocation": {
"latitude": 37.794465,
"longitude": -122.394839
},
"costPerHour": 40.0,
"costPerKilometer": 10.0
}
]
}
}
查看包含硬时间窗口和软时间窗口的示例请求的响应
{
"routes": [
{
"vehicleStartTime": "2023-01-13T17:48:35Z",
"vehicleEndTime": "2023-01-13T18:24:28Z",
"visits": [
{
"isPickup": true,
"startTime": "2023-01-13T17:48:35Z",
"detour": "0s"
},
{
"shipmentIndex": 1,
"isPickup": true,
"startTime": "2023-01-13T17:51:05Z",
"detour": "150s"
},
{
"shipmentIndex": 2,
"isPickup": true,
"startTime": "2023-01-13T17:53:35Z",
"detour": "300s"
},
{
"startTime": "2023-01-13T18:00:00Z",
"detour": "300s"
},
{
"shipmentIndex": 1,
"startTime": "2023-01-13T18:07:42Z",
"detour": "493s"
},
{
"shipmentIndex": 2,
"startTime": "2023-01-13T18:17:27Z",
"detour": "873s"
}
],
"transitions": [
{
"travelDuration": "0s",
"waitDuration": "0s",
"totalDuration": "0s",
"startTime": "2023-01-13T17:48:35Z"
},
{
"travelDuration": "0s",
"waitDuration": "0s",
"totalDuration": "0s",
"startTime": "2023-01-13T17:51:05Z"
},
{
"travelDuration": "0s",
"waitDuration": "0s",
"totalDuration": "0s",
"startTime": "2023-01-13T17:53:35Z"
},
{
"travelDuration": "235s",
"travelDistanceMeters": 795,
"waitDuration": "0s",
"totalDuration": "235s",
"startTime": "2023-01-13T17:56:05Z"
},
{
"travelDuration": "212s",
"travelDistanceMeters": 791,
"waitDuration": "0s",
"totalDuration": "212s",
"startTime": "2023-01-13T18:04:10Z"
},
{
"travelDuration": "335s",
"travelDistanceMeters": 1204,
"waitDuration": "0s",
"totalDuration": "335s",
"startTime": "2023-01-13T18:11:52Z"
},
{
"travelDuration": "171s",
"travelDistanceMeters": 665,
"waitDuration": "0s",
"totalDuration": "171s",
"startTime": "2023-01-13T18:21:37Z"
}
],
"metrics": {
"performedShipmentCount": 3,
"travelDuration": "953s",
"waitDuration": "0s",
"delayDuration": "0s",
"breakDuration": "0s",
"visitDuration": "1200s",
"totalDuration": "2153s",
"travelDistanceMeters": 3455
},
"routeCosts": {
"model.shipments.deliveries.time_windows.cost_per_hour_after_soft_end_time": 0.58166666666666667,
"model.shipments.deliveries.time_windows.cost_per_hour_before_soft_start_time": 5.7433333333333332,
"model.vehicles.cost_per_hour": 23.922222222222221,
"model.vehicles.cost_per_kilometer": 34.55
},
"routeTotalCost": 64.797222222222217
}
],
"metrics": {
"aggregatedRouteMetrics": {
"performedShipmentCount": 3,
"travelDuration": "953s",
"waitDuration": "0s",
"delayDuration": "0s",
"breakDuration": "0s",
"visitDuration": "1200s",
"totalDuration": "2153s",
"travelDistanceMeters": 3455
},
"usedVehicleCount": 1,
"earliestVehicleStartTime": "2023-01-13T17:48:35Z",
"latestVehicleEndTime": "2023-01-13T18:24:28Z",
"totalCost": 64.797222222222217,
"costs": {
"model.vehicles.cost_per_kilometer": 34.55,
"model.shipments.deliveries.time_windows.cost_per_hour_before_soft_start_time": 5.7433333333333332,
"model.shipments.deliveries.time_windows.cost_per_hour_after_soft_end_time": 0.58166666666666667,
"model.vehicles.cost_per_hour": 23.922222222222221
}
}
}
如果仅具有硬时间窗口约束的示例完全跳过了 shipment[1]，则软化其传送时间窗口会导致在其时间窗口开始时间之前传送它。同样，放缓其他运单的结束时间使 shipment[2] 能够在其时间范围结束后送达。
与此同时，费用和总装运金额发生了变化：
totalCost：从 81.283 降至 64.797- 已完成的运单总数：从 2 增加至 3
由于与上一个示例相比，时间窗口限制放宽了，因此优化器找到了更便宜的解决方案。
最后，metrics.costs 属性还包含一个新键，用于指示根据限制条件的乘积和错过送货期限的时长产生的实际费用。具体来说：
costPerHourBeforeSoftStartTime（共 2.0）和- 实际送达与时间段开始之间的时间：2.83583 小时
结果：
model.shipments.deliveries.time_windows.cost_per_hour_before_soft_start_time：5.6716666666666669.
通过这些指标，您可以进行费用分析，以了解硬性限制条件与软性限制条件之间的权衡，然后据此调整限制条件，以更好地契合您的特定业务规则。在这种情况下，总费用小于 shipment[1].penalty_cost 为 20.0。优化器发现，提前配送货物比跳过运单更具成本效益。