HARA_E2E_ワーキングフロー
上級
これはEngineering, AI Summarization分野の自動化ワークフローで、16個のノードを含みます。主にConvertToFile, ManualTrigger, ReadWriteFile, Agent, ExtractFromFileなどのノードを使用。 GPT-4を使用したISO 26262準拠自動車安全分析
前提条件
- •OpenAI API Key
ワークフロープレビュー
ノード接続関係を可視化、ズームとパンをサポート
ワークフローをエクスポート
以下のJSON設定をn8nにインポートして、このワークフローを使用できます
{
"id": "Z59iv0jcVPieE4iB",
"meta": {
"instanceId": "e23a10c38a84aff056a546290ab44e4d0883223400a2378b1f2a9dd2f5a8af2a",
"templateCredsSetupCompleted": true
},
"name": "HARA_E2E_workflow",
"tags": [
"safety",
"ISO26262",
"AI"
],
"nodes": [
{
"id": "5d95ae17-a4aa-416d-9603-129e65f90f1c",
"name": "「Execute workflow」クリック時",
"type": "n8n-nodes-base.manualTrigger",
"position": [
-680,
-120
],
"parameters": {},
"typeVersion": 1
},
{
"id": "7a74d970-30f9-4256-bba1-4dd586a7a2a5",
"name": "AIエージェント",
"type": "@n8n/n8n-nodes-langchain.agent",
"position": [
-120,
-120
],
"parameters": {
"text": "=const description = {{ $json.data }}.binary.data.toString('utf-8');\\nconst prompt = `Analyze this system for hazards:\\n${description}\\n\\nOutput:\\n1. 5 potential hazards\\n2. Likely root causes\\n3. ISO 26262 relevant clauses`;\\nreturn [{ json: { prompt } }];",
"options": {
"systemMessage": "You are a helpful FuSA assistant"
},
"promptType": "define",
"hasOutputParser": true
},
"typeVersion": 2
},
{
"id": "3682f8df-16a8-4ec5-83ee-cb99121497f3",
"name": "AIハザード分析",
"type": "@n8n/n8n-nodes-langchain.lmChatOpenAi",
"position": [
480,
300
],
"parameters": {
"model": {
"__rl": true,
"mode": "list",
"value": "gpt-4.1-mini"
},
"options": {}
},
"credentials": {
"openAiApi": {
"id": "vrJ0hwKixLk44aS4",
"name": "OpenAi account"
}
},
"typeVersion": 1.2
},
{
"id": "7ed4df13-d81e-4426-9607-de7cefaa5fb0",
"name": "簡易メモリウィンドウ",
"type": "@n8n/n8n-nodes-langchain.memoryBufferWindow",
"position": [
1560,
320
],
"parameters": {
"sessionKey": "={{ $execution.id }}",
"sessionIdType": "customKey",
"contextWindowLength": 20
},
"typeVersion": 1.3
},
{
"id": "b8e8ff87-3675-4036-8738-31dc1e8e73b5",
"name": "Systems_Descriptionを読み取る",
"type": "n8n-nodes-base.readWriteFile",
"position": [
-480,
-120
],
"parameters": {
"options": {},
"fileSelector": "/data/inputs/1_hazard_identification/systems_description.txt"
},
"typeVersion": 1,
"alwaysOutputData": true
},
{
"id": "328cd6cc-0d09-460a-98ad-ef23f1f550ca",
"name": "入力をバイナリデータに変換",
"type": "n8n-nodes-base.extractFromFile",
"position": [
-280,
-120
],
"parameters": {
"options": {},
"operation": "text"
},
"typeVersion": 1
},
{
"id": "b262dce7-2db9-4f54-a418-534abde45bbc",
"name": "ファイルに変換",
"type": "n8n-nodes-base.convertToFile",
"position": [
220,
-120
],
"parameters": {
"options": {},
"operation": "toText",
"sourceProperty": "output"
},
"typeVersion": 1.1
},
{
"id": "5359da29-26c1-492d-90ab-a8494d809e29",
"name": "Potential_risks_report.txt",
"type": "n8n-nodes-base.readWriteFile",
"position": [
440,
-120
],
"parameters": {
"options": {
"append": false
},
"fileName": "=/data/outputs/1_hazard_identification/Report_Hazard Identification.txt_{{ $now.toString() }}",
"operation": "write"
},
"typeVersion": 1,
"alwaysOutputData": true
},
{
"id": "cddc0b4a-cfdf-4a62-bbe5-a80a6407657a",
"name": "Update_risk_estimation_report",
"type": "n8n-nodes-base.readWriteFile",
"position": [
1400,
-120
],
"parameters": {
"options": {
"append": false
},
"fileName": "=/data/outputs/2_risk_estimation/Report_Risk_Estimation.txt_{{ $now.toString() }}",
"operation": "write"
},
"typeVersion": 1,
"alwaysOutputData": true
},
{
"id": "d2137c3b-003f-46b6-8b2c-0ab84fd7de52",
"name": "AIエージェント1",
"type": "@n8n/n8n-nodes-langchain.agent",
"position": [
860,
-120
],
"parameters": {
"text": "=const description = \"### Hazards to Analyze:\\n\\t{{ $json.data }}\"",
"options": {
"systemMessage": "Act as a functional safety expert. Analyze these hazards and estimate risk per ISO 26262 (S/E/C). \\n\\tAct as a functional safety expert. Analyze these hazards and estimate risk per ISO 26262 (S/E/C):\\n\\t\\n\\t### Input Hazards:\\n\\t{Insert hazard list from file (1-5)}\\n\\t\\n\\t### Task:\\n\\t1. **Severity (S)**: Assign S0-S3 based on potential injury:\\n\\t\\t- S0: No injuries\\n\\t\\t- S1: Light-moderate injury\\n\\t\\t- S2: Severe/life-threatening injury\\n\\t\\t- S3: Fatalities\\n\\t\\n\\t2. **Exposure (E)**: Rate E0-E4 for scenario probability:\\n\\t\\t- E0: Incredibly unlikely\\n\\t\\t- E1: Very low (≤1% of operating time)\\n\\t\\t- E2: Low (≤10%)\\n\\t\\t- E3: Medium (≤50%)\\n\\t\\t- E4: High (>50%)\\n\\t\\n\\t3. **Controllability (C)**: Classify C0-C3:\\n\\t\\t- C0: Controllable by most drivers\\n\\t\\t- C1: Controllable by average drivers\\n\\t\\t- C2: Difficult to control\\n\\t\\t- C3: Uncontrollable\\n\\t\\n\\t### Output Format:\\n\\tFor each hazard, provide:\\n\\t1. [Hazard ID] | [Hazard Description]\\n\\t2. **Rating**: S[value]-E[value]-C[value]\\n\\t3. **ASIL**: QM/A/B/C/D (per ISO 26262 Table 6)\\n\\t4. **Rationale**: 1-sentence justification\\n\\t\\n\\t### Example Output:\\n\\t1. HZ-01 | False automatic braking triggered by debris\\n\\t\\t- **Rating**: S2-E3-C1\\n\\t\\t- **ASIL**: B\\n\\t\\t- **Rationale**: Sudden braking could cause rear-end collisions (S2), occurs in urban areas (E3), but drivers often regain control (C1).\\n"
},
"promptType": "define",
"hasOutputParser": true
},
"typeVersion": 2
},
{
"id": "4db38299-87c5-45df-98bd-f91dbcec829b",
"name": "入力をバイナリデータに変換1",
"type": "n8n-nodes-base.extractFromFile",
"position": [
640,
-120
],
"parameters": {
"options": {},
"operation": "text"
},
"typeVersion": 1
},
{
"id": "9d303ef5-da40-485c-8d5e-4d568fcb67f9",
"name": "ファイルに変換1",
"type": "n8n-nodes-base.convertToFile",
"position": [
1180,
-120
],
"parameters": {
"options": {},
"operation": "toText",
"sourceProperty": "output"
},
"typeVersion": 1.1
},
{
"id": "4a382915-1e35-4b40-acfd-d04a1ef4e3e2",
"name": "Risks_mitigation.txt",
"type": "n8n-nodes-base.readWriteFile",
"position": [
2320,
-120
],
"parameters": {
"options": {
"append": false
},
"fileName": "=/data/outputs/3_mitigation_strategy/Report_Risk_mitigation.txt_{{ $now.toString() }}",
"operation": "write"
},
"typeVersion": 1,
"alwaysOutputData": true
},
{
"id": "b7a292b2-277e-4831-ad6f-ce689070e926",
"name": "AIエージェント2",
"type": "@n8n/n8n-nodes-langchain.agent",
"position": [
1780,
-120
],
"parameters": {
"text": "=Generate ISO 26262-compliant mitigation strategies for these ASIL-rated hazards:\\n\\n{{$json.data}}",
"options": {
"systemMessage": "**Role**: Functional Safety Engineer (ISO 26262 Expert) \n**Task**: Generate technical and process mitigations for ASIL-rated hazards for each hazard. \n**Input**: Hazard list with S/E/C ratings and ASIL classifications \n\n---\n\n### **Rules for Mitigation Design**\n1. **ASIL-Driven Controls**:\n - ASIL D: Mandatory hardware redundancy + SIL-4 software \n - ASIL C: One safety mechanism + SIL-3 software \n - ASIL B: Diagnostic monitoring + SIL-2 \n - ASIL A/QM: Warning systems or procedural controls \n\n2. **Mitigation Types**:\n - **Technical**: \n - Redundancy (e.g., dual-channel sensors) \n - Monitoring (e.g., heartbeat checks) \n - Diversity (e.g., heterogeneous algorithms) \n - **Process**: \n - Testing (e.g., 100% MC/DC coverage) \n - Documentation (e.g., safety case evidence) \n - Maintenance (e.g., OTA update protocols) \n\n3. **ISO 26262 Alignment**: \n - Clause 5: Hardware qualification \n - Clause 6: Software safety requirements \n - Clause 7: Verification and validation \n\n---\n\n### **Output Format**\n```markdown\n### [Hazard ID] | [Hazard Description] (ASIL X)\n- **Technical Controls**:\n 1. [Solution 1] (ISO 26262-[Clause]-[Section]) \n - *Rationale*: [1-sentence justification] \n 2. [Solution 2] \n - *Rationale*: [1-sentence justification] \n- **Process Controls**: \n - [Measure] (ISO 26262-[Clause]-[Section]) \n - *Validation Method*: [Test/Review/Analysis] \n\n**Traceability**: Links to [Hazard ID], [Risk Rating] "
},
"promptType": "define",
"hasOutputParser": true
},
"typeVersion": 2
},
{
"id": "e7e2180f-9bcc-4ff3-a807-49ae2eba9ffd",
"name": "入力をバイナリデータに変換2",
"type": "n8n-nodes-base.extractFromFile",
"position": [
1620,
-120
],
"parameters": {
"options": {},
"operation": "text"
},
"typeVersion": 1
},
{
"id": "0be1af89-2253-4fe2-bf17-baf39b1c2730",
"name": "ファイルに変換2",
"type": "n8n-nodes-base.convertToFile",
"position": [
2120,
-120
],
"parameters": {
"options": {},
"operation": "toText",
"sourceProperty": "output"
},
"typeVersion": 1.1
}
],
"active": false,
"pinData": {},
"settings": {
"executionOrder": "v1"
},
"versionId": "fc97d1e1-986b-4181-8ae7-a3054c97d3ba",
"connections": {
"7a74d970-30f9-4256-bba1-4dd586a7a2a5": {
"main": [
[
{
"node": "b262dce7-2db9-4f54-a418-534abde45bbc",
"type": "main",
"index": 0
}
]
]
},
"d2137c3b-003f-46b6-8b2c-0ab84fd7de52": {
"main": [
[
{
"node": "9d303ef5-da40-485c-8d5e-4d568fcb67f9",
"type": "main",
"index": 0
}
]
]
},
"b7a292b2-277e-4831-ad6f-ce689070e926": {
"main": [
[
{
"node": "0be1af89-2253-4fe2-bf17-baf39b1c2730",
"type": "main",
"index": 0
}
]
]
},
"b262dce7-2db9-4f54-a418-534abde45bbc": {
"main": [
[
{
"node": "5359da29-26c1-492d-90ab-a8494d809e29",
"type": "main",
"index": 0
}
]
]
},
"9d303ef5-da40-485c-8d5e-4d568fcb67f9": {
"main": [
[
{
"node": "cddc0b4a-cfdf-4a62-bbe5-a80a6407657a",
"type": "main",
"index": 0
}
]
]
},
"0be1af89-2253-4fe2-bf17-baf39b1c2730": {
"main": [
[
{
"node": "4a382915-1e35-4b40-acfd-d04a1ef4e3e2",
"type": "main",
"index": 0
}
]
]
},
"3682f8df-16a8-4ec5-83ee-cb99121497f3": {
"ai_languageModel": [
[
{
"node": "7a74d970-30f9-4256-bba1-4dd586a7a2a5",
"type": "ai_languageModel",
"index": 0
},
{
"node": "d2137c3b-003f-46b6-8b2c-0ab84fd7de52",
"type": "ai_languageModel",
"index": 0
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{
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"type": "ai_languageModel",
"index": 0
}
]
]
},
"4a382915-1e35-4b40-acfd-d04a1ef4e3e2": {
"main": [
[]
]
},
"7ed4df13-d81e-4426-9607-de7cefaa5fb0": {
"ai_memory": [
[
{
"node": "7a74d970-30f9-4256-bba1-4dd586a7a2a5",
"type": "ai_memory",
"index": 0
},
{
"node": "d2137c3b-003f-46b6-8b2c-0ab84fd7de52",
"type": "ai_memory",
"index": 0
},
{
"node": "b7a292b2-277e-4831-ad6f-ce689070e926",
"type": "ai_memory",
"index": 0
}
]
]
},
"b8e8ff87-3675-4036-8738-31dc1e8e73b5": {
"main": [
[
{
"node": "328cd6cc-0d09-460a-98ad-ef23f1f550ca",
"type": "main",
"index": 0
}
]
]
},
"5359da29-26c1-492d-90ab-a8494d809e29": {
"main": [
[
{
"node": "4db38299-87c5-45df-98bd-f91dbcec829b",
"type": "main",
"index": 0
}
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},
"328cd6cc-0d09-460a-98ad-ef23f1f550ca": {
"main": [
[
{
"node": "7a74d970-30f9-4256-bba1-4dd586a7a2a5",
"type": "main",
"index": 0
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},
"4db38299-87c5-45df-98bd-f91dbcec829b": {
"main": [
[
{
"node": "d2137c3b-003f-46b6-8b2c-0ab84fd7de52",
"type": "main",
"index": 0
}
]
]
},
"e7e2180f-9bcc-4ff3-a807-49ae2eba9ffd": {
"main": [
[
{
"node": "b7a292b2-277e-4831-ad6f-ce689070e926",
"type": "main",
"index": 0
}
]
]
},
"cddc0b4a-cfdf-4a62-bbe5-a80a6407657a": {
"main": [
[
{
"node": "e7e2180f-9bcc-4ff3-a807-49ae2eba9ffd",
"type": "main",
"index": 0
}
]
]
},
"5d95ae17-a4aa-416d-9603-129e65f90f1c": {
"main": [
[
{
"node": "b8e8ff87-3675-4036-8738-31dc1e8e73b5",
"type": "main",
"index": 0
}
]
]
}
}
}よくある質問
このワークフローの使い方は？
上記のJSON設定コードをコピーし、n8nインスタンスで新しいワークフローを作成して「JSONからインポート」を選択、設定を貼り付けて認証情報を必要に応じて変更してください。
このワークフローはどんな場面に適していますか？
上級 - エンジニアリング, AI要約
有料ですか？
このワークフローは完全無料です。ただし、ワークフローで使用するサードパーティサービス（OpenAI APIなど）は別途料金が発生する場合があります。
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ワークフロー情報
難易度
上級
ノード数16
カテゴリー2
ノードタイプ7
作成者
MRJ
@manirajanA software professional with interest in building up DIY projects in embedded system software on bare-metal to POSIX compliant OS, with automation workflows on Arduinos, Raspberry Pi, STM32 controllers, ESPIf and so on
外部リンク
n8n.ioで表示 →
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