Route Recording Device Quality Appraisal

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route recording device takes the synergy of high-precision satellite positioning and data encryption storage as its core principle. By optimizing GNSS positioning accuracy, data sampling frequency and environmental tolerance, it can achieve continuous recording of navigation trajectories, automatic marking of abnormal events and data anti-tampering. It is widely used in fields such as ocean-going ships, inland shipping, fishery supervision and maritime rescue. In ocean transportation, it is used for black box navigation data tracing; in fishery management, it meets the needs of electronic fence cross-border early warning; in maritime supervision, it ensures real-time monitoring and accident analysis of navigation safety. Compared with general recording equipment, route recording devices have the characteristics of resistance to salt spray corrosion, resistance to electromagnetic interference and excellent data integrity. They are core equipment for ship navigation safety and compliance.

Zhongke Testing is a product quality appraisal service organization registered with the court. It can provide quality appraisal services for route recording devices. It has a professional appraisal team and advanced instruments and equipment to provide fair and accurate appraisal results for the quality appraisal of route recording devices.

As IMO and various countries' maritime regulations become stricter, related quality dispute cases have increased significantly. The judicial dispute focuses on:

1, performance index dispute: positioning accuracy exceeds standard, data storage period is insufficient;

2, material defect: shell waterproof level does not meet standard, PCB board three-proof coating Coverage;

3, process problems: insufficient GNSS antenna gain, poor resistance to side-channel attacks of the encryption chip;

4, contract performance dispute: core modules or software functions do not match the technical agreement.

0 Such cases need to pass positioning accuracy verification, data integrity testing and hardware reverse analysis to clarify the quality responsibility.

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The quality appraisal of the route recording device usually includes the following steps:

1. Appearance inspection

Carefully inspect the appearance of the FDR to look for obvious damage, deformation, corrosion or other abnormalities.

2. Functional test

uses special testing equipment to conduct functional testing on the FDR to check whether it can record, store and play back data normally.

03. Data analysis

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2 analyzes the data recorded by FDR to check whether there are abnormal data, missing data or data errors.

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44. Troubleshooting

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6If quality problems are found, perform troubleshooting to determine the specific cause and location of the failure.

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A shipping company of the applicant signed a "Beidou Route Recorder Procurement Contract" with an equipment manufacturer of the defendant, and it was agreed that the positioning accuracy CEP ≤ 2m. After the accident, data playback revealed that the trajectory drifted by more than 10m. The manufacturer argued that it was caused by satellite signal obstruction.

Identification analysis results:

The quality analysis expert group discussed and comprehensively analyzed the relevant information of the "route recording device", contract technical agreement, on-site investigation case materials and other data, and made the following quality analysis opinions: HTMLTAG The GNSS antenna gain of the route recording device involved in TOKEN5

is only 2.5dBi (protocol ≥5dBi), and the multipath suppression algorithm is not enabled; the third-generation Beidou chip was replaced by the second-generation chip, with a cold start time of >60s (protocol ≤30s); the hardness of the shell seal ring is insufficient (Shore A50, protocol ≥70), and the internal circuit is corroded after the salt spray test. The appraisal conclusion determined that hardware configuration and process defects were the main causes of positioning failure.

The appraisal conclusion concluded that defects in the sensing system and algorithm are the main reasons for the sorting failure.

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Route recording device quality appraisal report should include:

1, appraisal purpose (such as data distortion attribution, safety compliance verification) and referenced standards (IMO A.694(17), GB/T 19392, etc.);

2, equipment model, software version, production batch;

3, detection method and equipment list (such as GNSS simulator, salt spray box);

4. Analysis of the correlation between test data and failure (such as the impact of antenna gain on positioning error);

05. Clarify the quality responsibility judgment conclusion and technical basis;

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26. Signature of the appraiser, professional qualification certificate for marine electronics and official seal of the organization.

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