JT/T 1300-2019Technical requirements and methods of testing for BeiDou shipborne emergency position indicating radio beacon (English PDF)

Foreword

This standard is in accordance with GB/T Draft the rules given in 1-2009.

This standard is proposed by and under the jurisdiction of the Technical Committee on Transportation, Information, Communications and Navigation Standardization.

This standard was drafted. China Communications and Information Center, Anhui Shuangchuang Electronics Co., Ltd.

1 Scope

This standard specifies the overall composition and general requirements, functional requirements, performance requirements, and test methods of Beidou marine emergency radio beacons.

And required results.

This standard applies to the design, production and testing of Beidou ship emergency radio beacons.

2 Normative references

The following documents are essential for the application of this document. For dated references, only the dated version applies to this article Pieces. For undated references, the latest version (including all amendments) applies to this document.

beidou. gov. cn/zt/bdbz /.201117/W02020126854554950925. pdf) bdbz /.201112/W020217128455454182023. pdf) Technical Regulations for Statutory Survey of Domestic Sailing Ships IEC 60945.:2002 Maritime navigation and radiocommunication equipment and systems generally require test methods and required test results (Maritime navidaion and radio comunicatecation eunipente and end systenses \\ Generalre qsites - h h o o o o o o o o ting and requisition tests resuts) Imo A. 658 (16) Reflective materials on life-saving equipment (Using and fitting of refrequence and materials on liv.

appliances)

3 Terms and definitions, abbreviations

3.1 Terms and definitions the following terms and definitions apply to this document.

3. 1. 1

Beidou emergency radio beacons for Beidou ship boring, eringen, posion, indicating, radio, beacon Shipborne device that uses Beidou satellite system to locate and send ship distress alert information.

3. 1. 2

Beidou short message service BeiDou shortsmessage service Digital message transmission service between users via Beidou satellite.

3. 1. 3

Precision factor diofion precision the factor by which the satellite's geometric position contributes to the error.

3. 1. 4

Position resolution resolutio off of position the smallest change in the position of the Beidou ship's emergency radio beacon antenna can be measured.

JT/T 1300-2019

3. 1. Five

Cold start cold star the Beidou ship's emergency radio beacon is turned on when the ephemeris, almanac, time and position information are unknown.

3. 1. 6

Hot start hot star

The Beidou ship's emergency radio beacon is turned on using the stored ephemeris, almanac, time and location information.

3. 1. 7

Capture sensitivity acquisition sensitivity the minimum signal level required for the Beidou ship's emergency radio beacon to capture navigation signals and locate properly under cold start conditions.

3. 1. 8

Tracking sensitivity tracking sensitivity After the Beidou emergency radio beacon is positioned normally, it can continue to maintain the minimum information required for tracking and positioning of navigation signals.

No. level.

3.2 Acronyms

The following abbreviations apply to this document.

BDQEPRB. Beidou Ship Emergency Radio Beacon (Beijing Ship Point Industrial Possibility Indicating Radical Beacon) BDS. BeiDou Satellite Navigation System (Beidou Navigation System) EIR. Equivalent Isotropic Radiated Power (Effective Isolation Radiated Power) GNSS. Global Satellite Navigation System (Global Navigation System) GPS. Global Positioning System (Global Positioning System) HDOP. plane position accuracy factor (Horizontal Diofion of Precision) POP. Position accuracy factor (Position of Offion Preciseon) RDSS. Radio Determining Service (Radio Demininion State Service)

4 General composition and general requirements

4.1 overall composition BDQEPIRB is an automatic floating alarm device for ships. It can be started manually or automatically when the ship is in danger.

The GNSS positioning unit achieves continuous positioning, and transmits distress alert information via the Beidou RDSS uplink frequency, and connects to the RDSS downlink frequency Receive alarm response information.

The overall composition of BDQEPIRB is shown in Figure 1. The specific composition and function requirements of the beacon terminal and release device are as follows.

a) The composition and function of the beacon terminal are.

1) Control unit. with working status display, alarm information sending and receiving control, Beidou communication protocol analysis, and ring light control functions.

2) GNSS positioning unit. It has the function of collecting ship positioning information, including position information, speed information and time information.

The bit mode includes at least BDS and GPS.

3) RDSS unit. It has Beidou short message service function, and realizes the communication between BDQEPRB and the shore control center.

4) 121. 5MHz positioning unit. with transmission 121. 5MHz frequency analog amplitude modulation seek signal function.

5) Beidou civil user card. It has the function of identifying the identity information of BDQEPIRB users, and has a unique ID number for Beidou RDSS two-way communication.

6) Battery unit. It has the function of supplying power to the beacon terminal and providing battery status information.

7) Positioning terminal housing. Reflective material is installed, which is oil-resistant, corrosion-resistant, radiation-proof, waterproof and sealed.

b) The composition and function of the release device are.

JT/T 1300-2019

1) Release device housing. It has information reflecting the status of the product and is used to place the beacon terminal.

2) Hydrostatic pressure release device. a device with BDQEPIRB that automatically releases and floats away from the terminal of the beacon at a certain water depth or pressure Features.

3) Bracket. It has the function of fixedly installing the release device.

Figure 1 Schematic diagram of the composition of BDZEPIRB

4.2 General requirements the general requirements of BDQEPRB are as follows.

a) It should have distress alarm, alarm cancellation, receipt, and self-test functions;

b) It should have an automatic floating function, which can be started automatically after floating

c) shall have automatic and manual release functions;

d) BDEZEPRB shall send a Beidou satellite every 5 distress alert messages when it has not obtained a valid GPS position.

Active positioning request until a valid GPS position is obtained;

e) The format of the BDQEPIRB message shall be in accordance with Appendix B of Chapter 4, Chapter 4, Appendix 4, of the Technical Regulations for Statutory Survey of Domestic Sailing Ships Requirements

f) BDZEPIRB shall be provided with a buoyant lanyard serving as a distress or liferaft tether.

5 Functional requirements

5.1 Alarm activation BDQEPIRB shall have.

a) Automatic alarm starting mode. triggering by water contact switch to automatically launch a distress alarm signal.

b) Manual alarm activation mode. The device is turned on and off through two independent actions.

5.2 Alarm cancel

BDZOEPRB shall be equipped with a separate device for cancelling the alarm message.

5.3 Self-test

5.3.1 BDQEPIRB should have a self-test function, and it should not cause false alarms during distress.

5.3.2 The content of the self-test should include the indicators, low duty cycle lights, RDS units, and 121. 5MHz positioning unit, low battery indication Features.

5.3.3 The test message sent during the self-inspection shall meet the requirements in Table 1.

JT/T 1300-2019

Table 1 Self-test information content format

Field meaning

Number of counters that send alarm information, the counter increases by 1 each time Time when alarm was sent Location when sending alarm Type of BDQEPIRB Type of BDQEPIRB Power supply status BDZEPRIB battery status

5.3.4 The self-test results shall be clearly indicated and kept displayed for at least 5 s.

5.3.5 Send the self-test information 3 times in succession, with an interval of 80s. If there is no feedback information, the self-test fails.

5.3.6 During the self-test, 121. The transmission time of the 5MHz signal should not exceed 3 audio frequency sweep periods or 1s, whichever is greater.

5.3.7 After the self-test is completed, the device should automatically return to the state before the self-test and shut down automatically.

5.4 Distress alert signal transmission

5.4.1 BDYEEPRB shall send the first distress alert message within 20 s after startup.

5.4.2 The short message of the alarm message of BDYEPRIB shall be sent every (65 ± 2.5) s within 60 minutes after the first distress alarm message is issued.

Shoot 1 time. When the following conditions are met, long messages should be sent instead.

a) After receiving the feedback alarm response signal, it shall send an alarm message long message every (600 ± 2.5) s;

b) If no alarm response signal is received within 60 minutes, an alarm message long message shall be sent every (600 ± 2.5) s from the 61st minute.

5.5 Alarm response signal reception

5.5.1 BDYEEPRB shall receive the alarm response signal through the Beidou RDSSS downlink frequency. The distress report is indicated by the status light always on the status of the police has been accepted, and it is indicated in the subsequent alarm information.

5.5.2 After 60 minutes from the start of the BDQEPIRB, the RDSS reception should be kept on continuously and on duty to receive alarm responses and instructions. When received the alarm response signal or from the 61th minute, after each alarm signal is issued, the RDSS should continue to run for a long time every (600 ± 2.5) s in 90s.

5.6 RDSS functional requirements the RDSS function of BDQEPIRB should meet 4 of the BD 42007-2015. 3. 1 to 4 3. 5, and 4. 3. 9 requirements.

6 Performance requirements

6.1 GNSS performance requirements 6.1.1 positioning accuracy

6.1.1.1 Static positioning accuracy Under the condition that the HDOP is not greater than 4 or the PDOP is not greater than 6, the static positioning accuracy of BDQEPIRB should meet.

a) BDS horizontal static positioning accuracy is not more than 10m (95%), and vertical static positioning accuracy is not more than 15m (95%);

b) The accuracy of GPS horizontal static positioning is not more than 13m (95%).

6.1.1.2 Dynamic positioning accuracy Under the condition of ship movement, the dynamic positioning accuracy of BDQEPIRB should meet.

a) BDS horizontal dynamic positioning accuracy is not more than 10m (95%), and vertical dynamic positioning accuracy is not more than 15m (95%);

JT/T 1300-2019

b) GPS horizontal dynamic positioning accuracy is not more than 13m (95%).

6.1.2 First capture time Under cold start conditions, the first capture time of BDS should be no more than 60s, and the first capture time of GPS should be no more than 60s.

Under hot start conditions, the first capture time of BDS should be no more than 5s, and the first capture time of GPS should be no more than 5s.

6.1.3 Lost lock recapture time in the normal positioning state, after the satellite signal loses lock for more than 120 seconds, the satellite should be reacquired within 5 seconds. The static positioning accuracy requirements should be met.

Foot 6. 1. 1. 1 requirements.

6.1.4 sensitivity

The sensitivity of BDQEPIRB includes capture sensitivity and tracking sensitivity. The requirements are as follows.

a) BDS capture sensitivity should not be greater than -137 dBm, and GPS capture sensitivity should not be greater than -125 dBm;

b) The tracking sensitivity of BDS should not be greater than -147 dBm, and the tracking sensitivity of GPS should be not greater than -133 dBm.

6.1.5 Position update rate the position update rate should not be lower than 1 Hz.

6.1.6 Position resolution the resolution of longitude and latitude should be no more than 0..2001 points.

6.1.7 Typical interference Under typical interference, the positioning accuracy of BDQEPIRB should be able to meet 6. 1. 1 requirements.

Note. Typical interference includes in-band and adjacent continuous-wave RF interference, in-band continuous-wave, narrow-band, and wide-band RF interference, and in-band and adjacent pulse interference.

6.2 RDSS performance requirements

6.2.1 Basic performance of RDSS the basic performance of RDSS of BDQEPIB should meet the requirements of BD 42007-2015. 4. 1 to 4 4. 4,4. 4. 9 and 4. 4. 10 requirements.

6.2.2 EIRP

In the range of 0 ° to 360 ° azimuth and 20 ° to 90 ° elevation, the ERP value should be in the range of 3 dBW to 19 dBW.

6.2.3 Carrier suppression Carrier suppression should not be less than 30dB.

6.3 121. 5MHZ positioning unit performance requirements 121. The performance requirements of the 5 MHz positioning unit are as follows.

a) Carrier frequency. 121. 5MHZ ± 6. 075kHz.

b) Peak effective radiated power. +17 dBm (50 mW) ± 3 dB.

c) Transmission cycle. continuous operation, it can be interrupted when the RDSSS signal of BDYEBIRB is transmitted, the interruption time should not be greater than 2s.

d) The modulation mode is AM AM (3K20A3X). The specific requirements are as follows.

1) A3X transmission. It should include a clearly defined carrier frequency. In any transmission period, the carrier center frequency is ± 30Hz.

JT/T 1300-2019

The band should contain at least 30% of the total transmitted power; when the type of transmission changes during transmission, the carrier frequency deviates it should not exceed ± 30Hz.

2) Modulation frequency. the frequency range is from 300Hz to 1600Hz, and the scanning bandwidth is not less than 700Hz.

3) Modulation duty. 33% to 55%.

4) Modulation coefficient. 0. 85 ~ 1. 0.

5) Scan repetition rate. 2Hz ~ 4Hz.

e) Antenna. omnidirectional antenna, vertical polarization.

6.4 Battery performance requirements the battery performance requirements are as follows.

a) The BDZEPIRB battery installed on domestic seagoing ships should be capable of continuous operation for not less than 48 hours.

BDZEPIRB battery should be able to work continuously for no less than 24h;

b) The storage period is 5 years. The daily test power consumption during the 5 years totals.200min. The natural power loss should not exceed the total battery capacity.

20% of

c) After.200min cumulative operation, it shall be able to issue an alarm indication during the self-test.

6.5 Performance requirements of the release device the performance requirements of the release device are as follows.

a) The conditions for automatic release shall be met. the domestic navigation sea vessel is not greater than 4m water depth or equivalent water pressure, and the inland river vessel is not greater than 2m water depth or Equivalent water pressure

b) should not be released when splashed by seawater or fresh water;

c) The structural material of the release device shall be made of non-corrosive materials;

d) It shall be possible to release the beacon terminal manually without a tool.

6.6 lanyard requirements the lanyard requirements are as follows.

a) 5 m to 8 m in length;

b) under the condition that the pulling force is not less than 25kg, it should not break within 30min on BDZEPIRB;

c) Immerse yourself in water without knotting, it should not sink within 10min.

6.7 Color and reflective material requirements the color and reflective material requirements of the beacon terminal are as follows.

a) the color should be orange with high visibility;

b) The minimum visible area of the reflective material on the waterline should not be less than 25cm2; the width of the reflective material should be not less than 25mm, in the horizontal direction.

The area observable at each angle upwards is not less than 5cm2;

c) Reflective materials shall meet IMO A. The requirements of resolution 658 (16).

6.8 Label requirements the label shall indicate the following information.

a) manufacturer's logo, equipment model, serial number and production date;

b) operating instructions, including operating methods, operating steps, and prompt instructions;

c) warning signs that BDQEPIRB must not be operated in non-emergency situations;

d) battery expiration date;

JT/T 1300-2019

e) a compass safety distance;

f) Model and expiration date of the release device.

6.9 Transmitter spurious emission requirements

6.9.1 The spurious emissions of the RDSSS unit transmitters of BDQEPIRB shall meet the requirements of Table 2.

Table 2 Requirements for the spurious emission of the RDSSS unit transmitter of BDYEBIRB

Test frequency range Start and stop Maximum power resolution bandwidth 9KHZ 150KHZ <= -36dBm 1KHZ 150kHz 30MHz <= -36dBm 10kHz 30MHZ 1GH <= -36dBm 100kHz 1GHZ 12. 75GHz <= -30dbm 1MHZ 6.9.2 121 of BDYEEPRB. 5MHZ positioning unit transmitter spurious emissions shall meet the "Technical Regulations for Statutory Inspection of Domestic Sailing Ships" Chapter 5, Chapter 4, Chapter 5 of Appendix 5. 17 requirements.

7 Test methods and required results

7.1 Type approval

BDQEPIRB should pass the type approval test of classification society, including compulsory test and additional test. For specific test items and test sequence, see "National A. Appendix A to Appendix 5 of Chapter 4 of Chapter 4 of the Technical Regulations for Statutory Survey of Sea-going Ships 1 and A. 2.

7.2 Test conditions

7.2.1 Test environment

7.2.1.1 The test environment requirements are as follows.

--- Temperature. 15 °C ~ 35 °C.

--- Relative humidity. 20% to 75%.

7.2.1.2 Extreme test environment requirements are as follows.

--- Display terminal temperature.-20 ° C to 55 ° C.

--- Release device temperature.-30 ° C to 65 ° C.

--- Relative humidity. 20% to 75%.

7.2.2 Test equipment the test equipment should have sufficient resolution, accuracy and stability, and its performance should meet the requirements of the technical performance indicators under test. Test Equipment it shall pass the measurement verification and be valid.

7.3 Functional test

7.3.1 Alarm activation

7.3.1.1 Automatic release start

7.3.1.1.1 Test method JT/T 1300-2019 5. In accordance with 5 of Appendix 5 in Chapter 4 of Chapter 4 of the Technical Regulations for Statutory Surveys of Domestic Sailing Ships. 3. Method 1 test.

7.3.1.1.2 required results BDQEPIRB shall automatically release to float in the water and activate the alarm.

7.3.1.2 Manual release start

7.3.1.2.1 Test method 5. In accordance with 5 of Appendix 5 in Chapter 4 of Chapter 4 of the Technical Regulations for Statutory Surveys of Domestic Sailing Ships. 5. Method 1 test.

7.3.1.2.2 required results BDYEEPRB should be activated by two independent actions.

7.3.2 Alarm cancel

7.3.2.1 Test method

5. In accordance with 5 of Appendix 5 in Chapter 4 of Chapter 4 of the Technical Regulations for Statutory Surveys of Domestic Sailing Ships. 5. 2 method test.

7.3.2.2 required results it should be possible to manually cancel and close the BDZEPRIB that has activated the alarm.

7.3.3 Self-test

7.3.3.1 Test method

5. In accordance with 5 of Appendix 5 in Chapter 4 of Chapter 4 of the Technical Regulations for Statutory Surveys of Domestic Sailing Ships. 4. Method 6 test.

7.3.3.2 required results the test results shall comply with 5. 3 requirements.

7.3.4 Distress alert signal transmission

7.3.4.1 Test method

5. In accordance with 5 of Appendix 5 in Chapter 4 of Chapter 4 of the Technical Regulations for Statutory Surveys of Domestic Sailing Ships. 13. 2 method test.

7.3.4.2 required results the test results shall comply with 5. 4 requirements.

7.3.5 Alarm response signal reception

7.3.5.1 Test method

5. In accordance with 5 of Appendix 5 in Chapter 4 of Chapter 4 of the Technical Regulations for Statutory Surveys of Domestic Sailing Ships. 13. 3 method test.

7.3.5.2 required results the test results shall comply with 5. 5 requirements.

7.3.6 RDSS function

7.3.6.1 Test method

RDSS functional test method is in accordance with BD 42007-2015 5. 4. 1 to 5 4. 5 and 5. 4. Method 9 test.

7.3.6.2 required results the test results shall comply with 5. 6 requirements.

7.4 Performance test

7.4.1 GNSS performance 7.4.1.1 positioning accuracy JT/T 1300-2019

7.4.1.1.1 Static positioning accuracy 7. 4. 1. 1. 1. 1 Test method According to BD 42005-2015 5. 4. 4. Method 1 test.

7. 4. 1. 1. 1. 2 required results the test results shall comply with 6. 1. 1. 1 requirements.

7.4.1.1.2 Dynamic positioning accuracy 7. 4. 1. 1. 2. 1 Test method 5. In accordance with 5 of Appendix 5 in Chapter 4 of Chapter 4 of the Technical Regulations for Statutory Surveys of Domestic Sailing Ships. 13. 1. Method 1 test.

7. 4. 1. 1. 2. 2 required results the test results shall comply with 6. 1. 1. 2 requirements.

7.4.1.2 First capture time

7.4.1.2.1 Test method According to BD 42005-2015 5. 4. 5 method test.

7.4.1.2.2 required results the test results shall comply with 6. 1. 2 requirements.

7.4.1.3 Lost lock recapture time

7.4.1.3.1 Test method According to BD 42005-2015 5. 4. Method 6 test.

7.4.1.3.2 required results the test results shall comply with 6. 1. 3 requirements.

7.4.1.4 sensitivity

7.4.1.4.1 Test method the sensitivity test of the GPS is in accordance with 5. 13. 1. 3 squares Law test. BDS sensitivity test according to BD 42005-2015 5. 4. Method 7 test.

7.4.1.4.2 required results the test results shall comply with 6. 1. 4 requirements.

7.4.1.5 Position update rate

7.4.1.5.1 Test method 5. In accordance with 5 of Appendix 5 in Chapter 4 of Chapter 4 of the Technical Regulations for Statutory Surveys of Domestic Sailing Ships. 13. 1. 4 method test.

7.4.1.5.2 required results the test results shall comply with 6. 1. 5 requirements.

7.4.1.6 Position resolution

7.4.1.6.1 Test method According to BD 42005-2015 5. 4. 10 method test.

7.4.1.6.2 required results the test results shall comply with 6. 1. 6 requirements.

7.4.1.7 Typical interference

7.4.1.7.1 Test method 5. In accordance with 5 of Appendix 5 in Chapter 4 of Chapter 4 of the Technical Regulations for Statutory Surveys of Domestic Sailing Ships. 13. 1. 5 method test.

7.4.1.7.2 required results the test results shall comply with 6. 1. 7 requirements.

JT/T 1300-2019

7.4.2 RDSS performance test

7.4.2.1 Basic performance of RDSS

7.4.2.1.1 Test method the basic performance test of RDSS of BDQEPIB is in accordance with BD 42007-2015. 5. 5. 1 to 5 5. 4 and 5. 5. 9.5. 5. 10 of Method testing.

7.4.2.1.2 required results the test results shall comply with 6. 2. 1 requirements.

7.4.2.2 EIRP

7.4.2.2.1 Test method the test environment is a darkroom. The Beidou RDSSS unit is controlled to send continuous positioning applications to the following azimuth/elevation angles (0 °/20 °, 90 ° /20 °, 180 °/20 °, 0 °/50 °, 0 °/70 °, 90 °/70 °, 180 °/70 °, 270 °/70 °) measurement of the EIRP value of the transmitted signal, measured 5 times .

7.4.2.2.2 required results the test results shall comply with 6. 2. 2 requirements.

7.4.2.3 Carrier suppression

7.4.2.3.1 Test method Control the RSSS unit to continuously send positioning applications, use a spectrum analyzer to measure the carrier suppression value of the transmitted RSSS signal, measure 5 times, and level Mean.

7.4.2.3.2 required results the test results shall comply with 6. 2. 3 requirements.

7.4.3 121. 5MHz positioning unit

7.4.3.1 Test method

5. In accordance with 5 of Appendix 5 in Chapter 4 of Chapter 4 of the Technical Regulations for Statutory Surveys of Domestic Sailing Ships. 4. 5 method test.

7.4.3.2 required results the test results shall comply with 6. 3 requirements.

7.4.4 release device

7.4.4.1 Test method

5. In accordance with 5 of Appendix 5 in Chapter 4 of Chapter 4 of the Technical Regulations for Statutory Surveys of Domestic Sailing Ships. 6 and 5. 3. Method 1 test.

7.4.4.2 required results the test results sh...