Division 7
United Kingdom
Elements of OWS data, actions performed and definitions:
The OWS data shall be calculated by either the MVU (stage 1) or the C-ITS station in the motor vehicle (stage 2) according to table 1
Table 1
Elements of OWS data, actions performed and definitions
| OWSData element | Action performed by the C-ITS station in the motor vehicle | Comment | ASN.1 definition of data |
|---|---|---|---|
| OWS1 Total weight | An integer value shall be generated. | Last measured total weight | recordedWeight INTEGER (0..65535), |
| OWS2 technically permissible maximum laden mass | An integer value shall be generated | Technically permissible maximum laden mass declared by the manufacturer | maximumTechnicalWeight INTEGER (0..65535) |
| OWS3 Axles configuration of the vehicle | An octet string size 4 shall be generated. | Axles configuration | axlesConfiguration OCTET STRING SIZE (4), |
| OWS4 Axle weight | An octet string size 26 shall be generated. | Weight per axle | axlesRecordedWeight OCTET STRING SIZE (26), |
| OWS5 Time recorded total weight | An integer value shall be generated. The value for OWS2 shall be set to the time of the current record of total weight. | Timestamp of the current recorded weight | tp15638Timestamp INTEGER (0..4294967295), |
| OWS6 DSRC Communication error | A Boolean value shall be generated. A TRUE value to the tp15638DSRCcommunicationError variable shall be assigned if the OBW has encountered at least one event of type Communication Error with the DSRC-VU in the last 30 days. ELSE if there are no events in the last 30 days, a FALSE value shall be assigned. | 1 (TRUE), indicates communication error between the OBW and the DSRC-VU in the last 30 days | tp15638DSRCcommunicationError, BOOLEAN, |
| OWS7 OBW Communication error | A Boolean value shall be generated. A TRUE value to the tp15638CommunicationError variable shall be assigned if the OBW has encountered at least one OBW communication error event inside the OBW in the last 30 days. ELSE if there are no events in the last 30 days, a FALSE value shall be assigned. | 1 (TRUE), indicates communication error in the OBW in the last 30 days | tp15638OBWCommunicationError, BOOLEAN, |
| OWS8 Security Breach Attempt | A Boolean value shall be generated. A TRUE value to the tp15638SecurityBreachAttempt variable shall be assigned if the OBW has in the last 2 years recorded at least one event of type security breach attempt. ELSE if there have not been security breach attempt events in the last 2 years, a FALSE value shall be assigned. | 1 (TRUE), indicates a security breach attempt to the OBW within last 2 years | tp15638SecurityBreachAttempt BOOLEAN, |
where
- a))
recordedWeight represents the total measured weight of the vehicle or vehicle combination with a resolution of 10 kg as defined in EN ISO 14906. For example, a value of 2 500 represents a weight of 25 ton.
- b))
axlesConfiguration represents the configuration of the vehicle or vehicle combination as number of axles.
The configuration is defined with the bit mask of 20 bits (extended from EN ISO 14906).
A bit mask of 2 bits represents the configuration of an axle with the following format:
-
Value 00B means that value is ‘non available’ because the vehicle does not have equipment to collect the weight on the axle.
-
Value 01B means that the axle is not present.
-
Value 10B means that the axle is present and the weight has been calculated and collected and it is provided in the axlesRecordedWeight field.
-
Value 11B is reserved for future uses.
The last 6 bits are reserved for future uses.
Table 2
Bit distribution for OWS2
Number of Axles Number of axles on tractor unit Number of axles on trailer 00/01/10/11 00/01/10/11 00/01/10/11 00/01/10/11 00/01/10/11 00/01/10/11 00/01/10/11 00/01/10/11 00/01/10/11 00/01/10/11 00/01/10/11 00/01/10/11 00/01/10/11 RFU
(6 bits)
-
- c))
axlesRecordedWeight represent the specific weight recorded for each axle with a resolution of 10 Kg. Two octets are used for each axle. For example, a value of 150, represent a weight of 1 500 Kgs.
- d))
maximumTechnicalWeight represent the technically permissible maximum laden mass of the vehicle or vehicle combination as declared by the manufacturer. This value shall only be provided for stage 2. For stage 1, a 0 value shall be assigned.