HF-MES-manual/en/business/equipment-warehouse.md

# Equipment and Warehouse Management

## 1. Function Overview

This section covers two major modules: Equipment Management and Warehouse Logistics. It implements full lifecycle management of equipment and warehouse logistics management of materials to ensure smooth production processes.

**Main Contents:**

| Chapter | Main Content |
|---------|-------------|
| Equipment Management | Equipment ledger, inspection & maintenance, fault repair, OEE analysis |
| Warehouse Logistics | Receiving management, issuing management, inventory management |

## 2. Equipment Management

### 2.1 Equipment Ledger

**Equipment Information Management:**

| Function | Description |
|----------|-------------|
| Equipment Registration | Basic equipment information entry |
| Equipment Query | Query equipment information by conditions |
| Equipment Change | Equipment information change management |
| Equipment Scrap | Equipment scrap process handling |
| Equipment Documents | Equipment document management |

**Equipment Lifecycle:**

```
Equipment Procurement → Equipment Installation → Equipment Acceptance → Equipment Operation → Equipment Maintenance → Equipment Scrap
```

### 2.2 Equipment Inspection

**Inspection Types:**

| Inspection Type | Execution Cycle | Executor | Main Content |
|-----------------|----------------|----------|--------------|
| Daily Inspection | Daily | Operator | Equipment running status check |
| Periodic Inspection | Weekly/Monthly | Maintenance Technician | Equipment performance check |
| Precision Inspection | Quarterly/Yearly | Engineer | Equipment accuracy check |

**Inspection Process:**

```
Inspection Plan Generation → Inspection Task Assignment → Execute Inspection → Inspection Record → Abnormal Handling
```

**Inspection Execution Steps:**

1. Receive inspection task
2. Arrive at equipment location
3. Perform inspection item by item according to standards
4. Record inspection results
5. Submit inspection record
6. Trigger abnormal handling process if any abnormality found

**Inspection Record Information:**

| Record Item | Description |
|-------------|-------------|
| Inspection Order No. | Unique identifier for inspection order |
| Equipment No. | Equipment being inspected |
| Inspection Type | Daily/Periodic/Precision |
| Inspector | Person performing inspection |
| Inspection Time | Inspection time |
| Inspection Items | Items being inspected |
| Inspection Result | Normal/Abnormal |
| Abnormal Description | Description of abnormality |

### 2.3 Equipment Maintenance

**Maintenance Types:**

| Maintenance Type | Cycle | Content | Man-hours |
|------------------|-------|---------|-----------|
| Daily Maintenance | Daily | Cleaning, lubrication, tightening | 15-30min |
| Level 1 Maintenance | Weekly | Cleaning, lubrication, adjustment | 2-4h |
| Level 2 Maintenance | Monthly | Cleaning, lubrication, tightening, replace wear parts | 8h |
| Level 3 Maintenance | Quarterly | Comprehensive inspection, adjustment, replacement | 1-2 days |
| Major Overhaul | Yearly | Complete disassembly and inspection | 3-7 days |

**Maintenance Process:**

```
Maintenance Plan → Maintenance Preparation → Maintenance Execution → Maintenance Record → Acceptance Confirmation
```

**Maintenance Content:**

| Maintenance Item | Content | Required Materials |
|-----------------|---------|-------------------|
| Cleaning | Equipment surface and internal cleaning | Cleaning agent, rags |
| Lubrication | Lubrication of moving parts | Lubricating oil |
| Tightening | Check and tighten loose parts | Wrenches and tools |
| Adjustment | Adjust equipment parameters | Adjustment tools |
| Replacement | Replace wear parts | Spare parts |

### 2.4 Equipment Fault Management

**Fault Classification:**

| Fault Category | Description | Repair Requirement |
|----------------|-------------|-------------------|
| Minor Fault | No impact on production | Repair within 2 hours |
| General Fault | Partial function affected | Repair within 4 hours |
| Serious Fault | Equipment down | Repair within 8 hours |
| Emergency Fault | Equipment damaged | Immediate response |

**Fault Handling Process:**

```
Fault Discovery → Fault Report → Fault Diagnosis → Repair Processing → Repair Acceptance → Fault Record
```

**Fault Reporting Steps:**

1. Discover equipment fault
2. Assess fault impact
3. Emergency shutdown (if needed)
4. Submit fault report
5. Maintenance technician receives work order
6. Fault diagnosis
7. Execute repair
8. Repair acceptance
9. Archive fault record

**Fault Report Information:**

| Field | Description |
|-------|-------------|
| Report No. | Unique identifier for fault report |
| Equipment No. | Faulty equipment |
| Fault Type | Type of fault |
| Fault Description | Description of fault |
| Fault Time | Time fault discovered |
| Reporter | Person reporting fault |
| Urgency Level | Emergency/General/Minor |
| Impact Scope | Impact on production |

**Maintenance Record Information:**

| Record Item | Description |
|-------------|-------------|
| Repair No. | Unique identifier for repair order |
| Repair Technician | Person performing repair |
| Repair Start Time | Start time of repair |
| Repair End Time | Completion time of repair |
| Fault Cause | Cause of fault |
| Repair Measures | Repair methods taken |
| Spare Parts Replaced | List of replaced parts |
| Repair Result | Repair effectiveness |

### 2.5 Equipment OEE Analysis

**OEE Concept:**

OEE (Overall Equipment Effectiveness) is a ratio measuring the actual production capacity versus the theoretical production capacity of equipment.

**OEE Calculation Formula:**

```
OEE = Availability × Performance × Quality

Where:
- Availability = Actual Operating Time / Planned Operating Time × 100%
- Performance = Actual Output / Theoretical Output × 100%
- Quality = Qualified Product Quantity / Total Output Quantity × 100%
```

**OEE Standards:**

| OEE Value | Level | Description |
|-----------|-------|-------------|
| ≥85% | World Class | Excellent |
| 70%-85% | Good | Meeting standard |
| 60%-70% | Average | Needs improvement |
| <60% | Poor | Requires focused improvement |

**OEE Analysis Dimensions:**

| Analysis Dimension | Loss Type | Description |
|-------------------|-----------|-------------|
| Availability | Fault Downtime | Downtime due to equipment failure |
| Availability | Changeover & Setup | Product changeover and setup time |
| Performance | Idle & Minor Stops | Short stops |
| Performance | Speed Loss | Running speed below theoretical speed |
| Quality | Scrap | Defective products |
| Quality | Rework | Products requiring rework |

**OEE Improvement Measures:**

| Loss Type | Improvement Measures |
|-----------|---------------------|
| Fault Downtime | Strengthen preventive maintenance |
| Changeover & Setup | Optimize changeover process |
| Idle & Minor Stops | Optimize operation process |
| Speed Loss | Equipment upgrade and modification |
| Scrap & Rework | Strengthen quality control |

## 3. Warehouse Logistics

### 3.1 Warehouse Layout

**Warehouse Zone Planning:**

| Zone Type | Purpose | Characteristics |
|-----------|---------|----------------|
| Inspection Zone | Pending inspection materials | Isolated storage |
| Raw Material Zone | Raw material storage | Zoned by category |
| Semi-finished Zone | Semi-finished product storage | Batch management |
| Finished Goods Zone | Finished product storage | FIFO |
| Return Zone | Returned materials | Separate management |
| Scrap Zone | Scrap storage | Safety isolation |
| Defective Zone | Defective product storage | Clear identification |

**Location Coding Rules:**

| Code Example | Meaning |
|--------------|---------|
| A-01-001 | Zone A, Row 01, Position 001 |
| B-02-005 | Zone B, Row 02, Position 005 |
| C-03-010 | Zone C, Row 03, Position 010 |

### 3.2 Receiving Management

**Receiving Types:**

| Receiving Type | Description | Document Type |
|----------------|-------------|---------------|
| Purchase Receiving | Purchased materials arrival | Purchase Receipt |
| Production Receiving | Production finished goods | Production Receipt |
| Return Receiving | Sales return | Return Receipt |
| Transfer Receiving | Transfer from other warehouse | Transfer Order |
| Other Receiving | Other reasons | Other Receipt |

**Receiving Process:**

```
┌──────────┐    ┌──────────┐    ┌──────────┐    ┌──────────┐
│  Arrival │───▶│ Document │───▶│   IQC    │───▶│ Inspection│
│  Receive │    │  Create  │    │  Trigger │    │  Execute │
└──────────┘    └──────────┘    └──────────┘    └──────────┘
                                                              │
                                                              ▼
┌──────────┐    ┌──────────┐    ┌──────────┐    ┌──────────┐
│Confirm   │◀───│Allocate  │◀───│Location  │◀───│ Qualified│ 
│Receiving │    │ Location │    │  Select  │    │  Decision│
└──────────┘    └──────────┘    └──────────┘    └──────────┘
```

**Receiving Operation Steps:**

1. Materials arrive, receive delivery note
2. Create receiving document
3. System automatically pushes IQC inspection task
4. Execute incoming inspection
5. After passing inspection, allocate location
6. Put materials onto designated location
7. Scan location to confirm
8. Complete receiving

**Receiving Document Information:**

| Field | Description |
|-------|-------------|
| Receipt No. | Unique identifier for receipt |
| Receiving Type | Purchase/Production/Return etc. |
| Supplier | Material supplier (for purchase) |
| Related Document | Purchase order/work order etc. |
| Receiving Date | Receiving date |
| Material Details | List of received materials |
| Warehouse | Receiving warehouse |
| Status | Pending inspection/Received etc. |

### 3.3 Issuing Management

**Issuing Types:**

| Issuing Type | Description | Document Type |
|--------------|-------------|---------------|
| Production Issue | Materials for production | Issue Order |
| Sales Issue | Sales delivery | Sales Issue Order |
| Return Issue | Return to supplier | Return Order |
| Transfer Issue | Transfer to other warehouse | Transfer Order |
| Other Issue | Other reasons | Other Issue Order |

**Issuing Process:**

```
┌──────────┐    ┌──────────┐    ┌──────────┐    ┌──────────┐
│ Material │───▶│ Document │───▶│ Picking  │───▶│ Approval │
│ Request  │    │  Create  │    │  Prepare │    │  Pass    │
└──────────┘    └──────────┘    └──────────┘    └──────────┘
                                                              │
                                                              ▼
┌──────────┐    ┌──────────┐
│Confirm   │◀───│ Scan     │
│ Issuing  │    │  Issue   │
└──────────┘    └──────────┘
```

**Issuing Operation Steps:**

1. Create issue order based on work order or manually
2. Select required materials
3. System checks inventory status
4. Approve issue order
5. Warehouse personnel prepare and pick materials
6. Scan materials and locations
7. Confirm issuing
8. Deliver materials to using department

**Issue Order Information:**

| Field | Description |
|-------|-------------|
| Issue No. | Unique identifier for issue order |
| Issue Type | Production issue/Other |
| Related Work Order | Work order related to issue |
| Issue Department | Department requesting materials |
| Issuer | Person issuing materials |
| Issue Date | Issue date |
| Material Details | List of issued materials |
| Warehouse | Issuing warehouse |
| Status | Pending approval/Issued etc. |

### 3.4 Inventory Management

**Inventory Query:**

| Query Dimension | Query Content |
|-----------------|---------------|
| By Material | Inventory status of a material |
| By Warehouse | Inventory status of a warehouse |
| By Location | Inventory status of a location |
| By Batch | Inventory status of a batch |
| By Status | Inventory quantity distribution |

**Inventory Data:**

| Data Item | Description |
|-----------|-------------|
| Material Code | Material number |
| Material Name | Material name |
| Warehouse | Warehouse location |
| Location | Storage location |
| Batch | Material batch |
| Quantity | Inventory quantity |
| Unit | Unit of measurement |
| Inventory Status | Normal/Frozen/Pending inspection |

**Inventory Accounting:**

| Account Type | Description |
|--------------|-------------|
| Opening Inventory | Inventory at period start |
| Current Receipt | Quantity added this period |
| Current Issue | Quantity removed this period |
| Closing Inventory | Inventory at period end |

**Inventory Calculation Formula:**

```
Closing Inventory = Opening Inventory + Current Receipt - Current Issue
```

### 3.5 Batch Management

**Batch Traceability:**

| Traceability Dimension | Traceability Content |
|------------------------|---------------------|
| Forward Traceability | Raw Material → Finished Product |
| Reverse Traceability | Finished Product → Raw Material |

**Batch Information:**

| Information Item | Description |
|------------------|-------------|
| Batch No. | Unique batch identifier |
| Material Batch | Material batch |
| Supplier Batch | Supplier provided batch |
| Production Batch | Production batch |
| Receiving Date | Receiving time |
| Expiry Date | Shelf life |
| Inspection Status | Qualified/Unqualified |

**First In First Out (FIFO):**

| Principle | Description |
|-----------|-------------|
| First in, first out | Earlier received materials issued first |
| Shelf life management | Near expiry materials issued first |
| Clear batch identification | Clear traceable batch identification |

### 3.6 Inventory Alert

**Alert Types:**

| Alert Type | Trigger Condition | Alert Content |
|------------|------------------|---------------|
| Safety Stock Alert | Inventory ≤ Safety Stock | Low inventory alert |
| Expiry Alert | Near expiry date | Expiry approaching alert |
| Slow-moving Alert | Long-term unused | Material slow-moving alert |
| Maximum Stock Alert | Inventory ≥ Maximum Stock | High inventory alert |

**Inventory Control Strategies:**

| Strategy | Description | Application Scenario |
|----------|-------------|---------------------|
| Safety Stock | Minimum inventory guarantee | Regular materials |
| Maximum Stock | Inventory upper limit control | Avoid overstock |
| Reorder Point | Replenish when inventory reaches reorder point | Fixed quantity procurement |
| Periodic Order | Regular inventory check and replenishment | Periodic procurement |

### 3.7 Inventory Count

**Count Types:**

| Count Type | Description | Frequency |
|------------|-------------|-----------|
| Full Count | Count all materials | Year-end |
| Partial Count | Count selected materials | Monthly/Weekly |
| Cycle Count | Planned cyclic counting | Daily |
| Dynamic Count | Real-time counting | Continuous |

**Count Process:**

```
Count Plan → Count Preparation → Initial Count → Recount → Variance Review → Accounting Adjustment
```

**Count Steps:**

1. Create count document
2. Select warehouse and materials
3. Execute initial count (first count)
4. Execute recount (verification)
5. Reconcile with system records
6. Analyze count variances
7. Approve variances
8. Execute accounting adjustment

**Count Records:**

| Record Item | Description |
|-------------|-------------|
| Count No. | Unique count document identifier |
| Count Type | Full/Partial/Cycle |
| Count Warehouse | Warehouse being counted |
| Count Date | Count date |
| Book Quantity | System recorded quantity |
| Actual Quantity | Physically counted quantity |
| Variance Quantity | Quantity difference |
| Variance Reason | Reason for variance |
| Approval Status | Pending approval/Approved |

---

**End of Equipment and Warehouse Management**