--- $schema: "http://json-schema.org/draft-07/schema#" $id: "https://oimlsmart.org/schemas/R21.yaml" title: "OIML R21 (Taximeters) Certificate Schema" description: | Schema for OIML R21:2007 taximeters. The Recommendation defines accuracy classes 0.5/1/1.5/2 in the standard text, but no certificate in the dataset (42/42) declares an accuracy class — the class is implicit in the type approval and the `accuracy_classes[]` array is always empty. The accuracy_class enum is therefore retained for completeness but the array is not validated for non-emptiness. Edition 2007. Category: "Taximeter". type: object required: [certificate, certified_type, characteristics, recommendation] properties: certificate: { $ref: "_core.yaml#/definitions/Certificate" } issuing_authority: { $ref: "#/definitions/IssuingAuthority" } applicants: { $ref: "_core.yaml#/definitions/PartyList" } manufacturers: { $ref: "_core.yaml#/definitions/PartyList" } certified_type: { $ref: "#/definitions/CertifiedType" } characteristics: { $ref: "#/definitions/Characteristics" } recommendation: type: object required: [id, edition, scheme] properties: id: { type: string, const: R21 } edition: { type: integer, const: 2007 } amendment: { type: [integer, "null"] } scheme: { type: string, enum: [A, B] } accuracy_classes: description: | OIML R21:2007 accuracy classes. Always empty in the observed dataset — accuracy is implicit in the type approval. type: array items: { $ref: "#/definitions/AccuracyClassValue" } test_reports: { $ref: "_core.yaml#/definitions/TestReportList" } revision_history: { $ref: "_core.yaml#/definitions/RevisionHistory" } model_family: { $ref: "_core.yaml#/definitions/ModelFamily" } components: type: array items: { $ref: "_core.yaml#/definitions/Component" } footnotes: { $ref: "_core.yaml#/definitions/FootnoteList" } d011_tests_applicable: description: | Tests mandated by R21:2007 type evaluation (D 11:2013 subset). Taximeters are vehicle-installed electronic instruments, so the road-vehicle battery tests (D 11 tables 37-41) apply in addition to the standard electronic instrument tests. type: array items: { $ref: "#/definitions/D011TestReference" } default: - { test_id: d011_t06_static_temperature } - { test_id: d011_t07_static_temperature } - { test_id: d011_t11_atmospheric_pressure } - { test_id: d011_t18_dc_mains_voltage_variation } - { test_id: d011_t22_dc_mains_dips_interruptions } - { test_id: d011_t26_bursts_ac_dc_mains } - { test_id: d011_t27_surges_ac_dc_mains } - { test_id: d011_t28_bursts_signal_data_control } - { test_id: d011_t29_surges_signal_data_control } - { test_id: d011_t33_rf_em_fields_general } - { test_id: d011_t35_electrostatic_discharges } - { test_id: d011_t37_road_vehicle_battery_voltage_variation } - { test_id: d011_t38_road_vehicle_transient_supply_lines } - { test_id: d011_t39_road_vehicle_transient_other_lines } - { test_id: d011_t41_load_dump } definitions: IssuingAuthority: description: Body that issued the certificate. Extends _core with fax field. type: object required: [name] properties: name: { type: string } address_lines: { type: array, items: { type: string } } person_responsible: { type: string } person_title: { type: string } phone: { type: string } fax: { type: string } email: { type: string } website: { type: string } oiml_issuer_id: { type: string } additionalProperties: false NullableEMClass: description: D 11 §7.4 EM class extended with N/A and null for R21 cert data. allOf: - $ref: "_core.yaml#/definitions/StructuredValue" - properties: value: type: [string, "null"] oneOf: - const: E1 - const: E2 - const: E3 - const: "N/A" - const: "Not applicable" - type: "null" NullableMechanicalClass: description: D 11 §7.3 mechanical class extended with N/A and null for R21 cert data. allOf: - $ref: "_core.yaml#/definitions/StructuredValue" - properties: value: type: [string, "null"] oneOf: - const: M1 - const: M2 - const: M3 - const: "N/A" - const: "Not applicable" - type: "null" AccuracyClassValue: description: | OIML R21:2007 accuracy class token. The standard defines classes 0.5, 1, 1.5, and 2; class 0 designates instruments without a class designation. Not used in any observed certificate (42/42 have empty `accuracy_classes[]`). type: string oneOf: - const: "0" description: Class 0 — instruments without accuracy class designation - const: "0.5" description: Class 0.5 - const: "1" description: Class 1 - const: "1.5" description: Class 1.5 - const: "2" description: Class 2 AccuracyClass: description: | StructuredValue-wrapped accuracy class token. Mirrors `recommendation.accuracy_classes` but used at type_level when an issuer records the class against the characteristic. allOf: - $ref: "_core.yaml#/definitions/StructuredValue" - properties: value: { $ref: "#/definitions/AccuracyClassValue" } DisplayType: description: | R21:2007 §3 taximeter display technology. The dataset records `module_designation: "Not applicable"` or `"N/A"` for every R21 cert — taximeters are not classified by display technology on the certificate. type: [string, "null"] enum: - mechanical - electromechanical - electronic - "Not applicable" - "N/A" - null HumidityClass: description: | R21:2007 §3.2 climatic class — humidity marking. Issuers record this as the free-text tokens "condensing" / "non-condensing" rather than the D 11 H1/H2/H3 enum. Both forms are accepted; the d011 module normalization map (`condensing`→H2, `non-condensing`→H1) maps these to the canonical D 11 classes at view time. allOf: - $ref: "_core.yaml#/definitions/StructuredValue" - properties: value: type: [string, "null"] enum: [condensing, non-condensing, H1, H2, H3, "N/A", "Not applicable", null] ClimaticIntendedLocation: description: | R21:2007 §3.2 climatic environment class — installed location of the taximeter. Issuers record this as a free-text label ("closed", "open", "non-condensing", "condensing") rather than a D 11 H-class. allOf: - $ref: "_core.yaml#/definitions/StructuredValue" - properties: value: type: [string, "null"] enum: [closed, Closed, open, Open, indoor, outdoor, null] CertifiedType: type: object required: [category, type_designations] properties: category: description: | OIML R21:2007 instrument category. The standard admits one value ("Taximeter"); historical certs use this verbatim. type: string enum: - Taximeter type_designations: type: array minItems: 1 items: { type: string } module_designation: $ref: "#/definitions/DisplayType" description: { type: [string, "null"] } Characteristics: type: object properties: type_level: { $ref: "#/definitions/TypeLevel" } model_level: type: array items: { $ref: "#/definitions/ModelLevelEntry" } config_level: type: array items: { $ref: "#/definitions/ConfigLevelEntry" } TypeLevel: description: | R21:2007 §4 type-level characteristics. Many issuers record the k- constant and tariffs in `model_level` even for single-model certs; this is a known data-quality gap and the schema does not enforce one location over the other. `additionalProperties: true` is intentional: the observed dataset uses ~70 distinct labels (k_constant_range vs range_of_k_constant vs taximeter_constant_k vs device_constant_range vs distance_signal_generator_constant_k), and the schema documents the canonical names while accepting legacy issuer-specific labels. type: object properties: accuracy_class: { $ref: "#/definitions/AccuracyClass" } temperature_range: { $ref: "_modules/d011_environmental.yaml#/definitions/TemperatureRange" } humidity_class: { $ref: "#/definitions/HumidityClass" } electromagnetic_environment_class: { $ref: "#/definitions/NullableEMClass" } mechanical_environment_class: { $ref: "#/definitions/NullableMechanicalClass" } electromagnetic_immunity_class: { $ref: "#/definitions/NullableEMClass" } climatic_environment_intended_location: { $ref: "#/definitions/ClimaticIntendedLocation" } climatic_environment_non_condensing: { $ref: "_core.yaml#/definitions/StructuredValue" } climatic_environment_condensing: { $ref: "_core.yaml#/definitions/StructuredValue" } climatic_environment_temperature: { $ref: "_modules/d011_environmental.yaml#/definitions/TemperatureRange" } climatic_condensing: { $ref: "_core.yaml#/definitions/StructuredValue" } climatic_temperature: { $ref: "_core.yaml#/definitions/StructuredValue" } climatic_temperature_range: { $ref: "_modules/d011_environmental.yaml#/definitions/TemperatureRange" } # K-constant / device constant / distance-signal-generator constant (synonyms of one concept) taximeter_constant_k: { $ref: "_core.yaml#/definitions/StructuredValue" } taximeter_constant_k_km_minus_1: { $ref: "_core.yaml#/definitions/StructuredValue" } k_constant_range: { $ref: "_core.yaml#/definitions/StructuredValue" } range_of_k_constant: { $ref: "_core.yaml#/definitions/StructuredValue" } range_k_constant: { $ref: "_core.yaml#/definitions/StructuredValue" } device_constant_range: { $ref: "_core.yaml#/definitions/StructuredValue" } range_device_constant: { $ref: "_core.yaml#/definitions/StructuredValue" } distance_signal_generator_constant_k: { $ref: "_core.yaml#/definitions/StructuredValue" } distance_signal_generator_constant_k_range: { $ref: "_core.yaml#/definitions/StructuredValue" } distance_signal_generator_constant_k_resolution: { $ref: "_core.yaml#/definitions/StructuredValue" } distance_signal_generator_constant_k_km_minus_1: { $ref: "_core.yaml#/definitions/StructuredValue" } distance_signal_generator_constant_k_km_minus_1_range: { $ref: "_core.yaml#/definitions/StructuredValue" } distance_signal_generator_constant_k_km_minus_1_resolution: { $ref: "_core.yaml#/definitions/StructuredValue" } distance_signal_generator_constant_resolution: { $ref: "_core.yaml#/definitions/StructuredValue" } device_constant_resolution: { $ref: "_core.yaml#/definitions/StructuredValue" } resolution_device_constant: { $ref: "_core.yaml#/definitions/StructuredValue" } resolution_k_constant: { $ref: "_core.yaml#/definitions/StructuredValue" } # Pulse interface pulse_voltage_amplitude: { $ref: "_core.yaml#/definitions/StructuredValue" } pulse_voltage_low: { $ref: "_core.yaml#/definitions/StructuredValue" } pulse_voltage_high: { $ref: "_core.yaml#/definitions/StructuredValue" } pulse_voltage_amplitude_low: { $ref: "_core.yaml#/definitions/StructuredValue" } pulse_voltage_amplitude_high: { $ref: "_core.yaml#/definitions/StructuredValue" } pulse_voltage_amplitude_low_high: { $ref: "_core.yaml#/definitions/StructuredValue" } pulse_frequency: { $ref: "_core.yaml#/definitions/StructuredValue" } minimum_pulse_width: { $ref: "_core.yaml#/definitions/StructuredValue" } time_measuring_signal_frequency: { $ref: "_core.yaml#/definitions/StructuredValue" } # Tariffs time_tariff: { $ref: "_core.yaml#/definitions/StructuredValue" } time_tariff_range: { $ref: "_core.yaml#/definitions/StructuredValue" } time_tariff_resolution: { $ref: "_core.yaml#/definitions/StructuredValue" } time_tariff_cu_per_hour: { $ref: "_core.yaml#/definitions/StructuredValue" } time_tariff_cu_per_h: { $ref: "_core.yaml#/definitions/StructuredValue" } time_tariff_cu_per_h_range: { $ref: "_core.yaml#/definitions/StructuredValue" } time_tariff_cu_per_h_resolution: { $ref: "_core.yaml#/definitions/StructuredValue" } distance_tariff: { $ref: "_core.yaml#/definitions/StructuredValue" } distance_tariff_range: { $ref: "_core.yaml#/definitions/StructuredValue" } distance_tariff_resolution: { $ref: "_core.yaml#/definitions/StructuredValue" } distance_tariff_cu_per_km: { $ref: "_core.yaml#/definitions/StructuredValue" } distance_tariff_cu_per_km_range: { $ref: "_core.yaml#/definitions/StructuredValue" } distance_tariff_cu_per_km_resolution: { $ref: "_core.yaml#/definitions/StructuredValue" } cu_currency_unit: { $ref: "_core.yaml#/definitions/StructuredValue" } # Power supply power_supply_voltage: { $ref: "_core.yaml#/definitions/StructuredValue" } power_supply_type: { $ref: "_core.yaml#/definitions/StructuredValue" } voltage_supply_range: { $ref: "_core.yaml#/definitions/StructuredValue" } # Software software_identification: { $ref: "_core.yaml#/definitions/SoftwareIdentification" } software_identification_version: { $ref: "_core.yaml#/definitions/SoftwareIdentification" } software_release_name: { $ref: "_core.yaml#/definitions/StructuredValue" } software_checksum: { $ref: "_core.yaml#/definitions/StructuredValue" } crc_checksum_value: { $ref: "_core.yaml#/definitions/StructuredValue" } software_version_tx80_box: { $ref: "_core.yaml#/definitions/StructuredValue" } software_checksum_tx80_box: { $ref: "_core.yaml#/definitions/StructuredValue" } software_version_skyglass: { $ref: "_core.yaml#/definitions/StructuredValue" } software_checksum_skyglass: { $ref: "_core.yaml#/definitions/StructuredValue" } software_identification_terminal_version: { $ref: "_core.yaml#/definitions/StructuredValue" } software_identification_terminal_checksum: { $ref: "_core.yaml#/definitions/StructuredValue" } software_identification_mcu_version: { $ref: "_core.yaml#/definitions/StructuredValue" } software_identification_mcu_checksum: { $ref: "_core.yaml#/definitions/StructuredValue" } # Locales country_language: { $ref: "_core.yaml#/definitions/StructuredValue" } additionalProperties: true ModelLevelEntry: type: object required: [attribute, values] properties: attribute: { type: string } unit: { $ref: "_units.yaml#/definitions/Unit" } unit_symbol: { type: [string, "null"] } values: type: array items: type: object required: [model, value] properties: model: { type: string } value: { $ref: "_core.yaml#/definitions/ValueOrScalar" } footnote_markers: type: array items: { type: string } ConfigLevelEntry: type: object required: [attribute, axis, values] properties: attribute: { type: string } axis: { oneOf: [ { type: string }, { type: "null" } ] } unit: { $ref: "_units.yaml#/definitions/Unit" } unit_symbol: { type: [string, "null"] } values: type: array items: type: object anyOf: - required: [condition, value] properties: condition: { type: string } value: { $ref: "_core.yaml#/definitions/ValueOrScalar" } - required: [model, value] properties: model: { type: string } value: { $ref: "_core.yaml#/definitions/ValueOrScalar" } D011TestReference: description: Reference to an OIML D 11:2013 performance test. type: object required: [test_id] properties: test_id: { type: string, pattern: '^d011_t\d{2}_' } test_level_index: { type: integer, minimum: 1, maximum: 5 } notes: { type: string } allOf: - description: | Road-vehicle battery tests (D 11 tables 37-41) apply when the taximeter is supplied from the vehicle's 12V/24V battery (the typical case for a taximeter). The schema mandates the battery-variation test (t37); if `power_supply_type` is "VDC" or "V DC" the test must appear in `d011_tests_applicable`. if: properties: characteristics: properties: type_level: properties: power_supply_type: properties: value: { enum: [VDC, "V DC", DC, vehicle_battery] } then: properties: d011_tests_applicable: contains: properties: test_id: { const: d011_t37_road_vehicle_battery_voltage_variation }