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MHT1064.3-2017: Safety code of power working with the helicopter. Part 3-Laser scanning operation
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Safety code of power working with the helicopter. Part 3-Laser scanning operation
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MH/T 1064.3-2017
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Basic data | Standard ID | MH/T 1064.3-2017 (MH/T1064.3-2017) | | Description (Translated English) | Safety code of power working with the helicopter. Part 3-Laser scanning operation | | Sector / Industry | Civil Aviation Industry Standard (Recommended) | | Classification of Chinese Standard | V53 | | Classification of International Standard | 03.220.50 | | Word Count Estimation | 9,964 | | Date of Issue | 2017-01-02 | | Date of Implementation | 2017-04-01 | | Regulation (derived from) | Civil Aviation Industry Standards Announcement No. 1 of 2017 | | Issuing agency(ies) | Civil Aviation Administration of China | | Summary | This standard specifies the general requirements for the use of manned helicopters (hereinafter referred to as helicopters) for laser scanning operations on overhead transmission lines, job preparation, data collection, and post-operation safety requirements. This section applies to laser scanning operations on overhead transmission lines using manned helicopters equipped with special equipment. | MHT1064.3-2017: Safety code of power working with the helicopter. Part 3-Laser scanning operation
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Safety code of power working with the helicopter.Part 3-Laser scanning operation
ICS 03.220.50
V 53
MH
Civil Aviation Industry Standard of the People's Republic of China
Safety Regulations for Helicopter Electric Operation
Part 3.Laser Scanning Job
2017 – 01 – 02 released
2017-04-01 Implementation
Issued by Civil Aviation Administration of China
Foreword
MH/T 1064 "Safety Regulations for Helicopter Electric Operation" is divided into the following seven parts.
--Part 1.General requirements;
--Part 2.Inspection operation;
--Part 3.Laser scanning operation;
--Part 4.Live work;
--Part 5.Electric water washing operation;
--Part 6.Hoisting and assembly tower operations;
--Part 7.Unfold the guide rope operation.
This part is part 3 of MH/T 1064.
This section was drafted in accordance with the rules given in GB/T 1.1-2009.
This part was proposed by the Transportation Department of the Civil Aviation Administration of China.
This part was approved by the Aircraft Airworthiness Certification Department of the Civil Aviation Administration of China.
This part is under the jurisdiction of the China Academy of Civil Aviation Science and Technology.
Drafting organizations of this section. The Second Research Institute of Civil Aviation Administration of China, State Grid General Aviation Co., Ltd.
The main drafters of this section. Yan Fengshuo, Shang Kejia, Wang Bingxi, Tang He, Wu Yi, Liu Ning, Qing Hongyu, Zhu Xiaobo. MH
Safety Regulations for Helicopter Power Operation Part 3.Laser Scanning Operation
1 Scope
This part of MH/T 1064 specifies the use of manned helicopters (hereinafter referred to as helicopters) for laser scanning of overhead transmission lines
General requirements for the job, job preparation, data collection, and safety requirements for work after the job.
This section applies to laser scanning operations on overhead transmission lines using manned helicopters equipped with special equipment.
2 Normative references
The following documents are indispensable for the application of this document. For dated reference documents, only the dated version applies to this article
Pieces. For undated references, the latest version (including all amendments) applies to this document.
GB 26859 Electric Safety Work Regulations Power Line Part
RTCA/DO-160 Aviation Radio Technology Committee/Airborne Equipment Environmental Conditions and Test Procedures
3 Terms and definitions
The following terms and definitions apply to this document.
3.1
Helicopter laser scanning
The operation method of using helicopter-mounted laser scanner to obtain 3D point cloud data of transmission line.
3.2
Laser scanner
By recording the time delay of the laser pulse from the launch and reflection of the target to the receiving unit, the precise measurement from the launch point to the ground reflection point
System to obtain the three-dimensional coordinates of ground reflection points.
3.3
Global navigation satellite system
GNSS
A collective term for global, regional and enhanced satellite navigation systems.
3.4
LiDAR point cloud
A collection of scan points.
Note. The laser scanning system scans the ground to obtain the three-dimensional coordinates of the ground reflection points, and each ground reflection point is distributed in the three-dimensional space in the form of points according to the three-dimensional coordinates
In, called scan point.
4 General requirements
4.1 Personnel
4.1.1 The captain performing helicopter laser scanning operations shall meet the following requirements.
--The total flight time of the helicopter not less than 600 h;
--Not less than 100 hours of helicopter inspection flight experience;
--Have the flight qualification of the operating model, and complete the technical training for landing at ultra-low altitude and temporary outdoor landing sites, and have the ability to fly in mountains,
Low-altitude flight, hovering, hovering and other stable flight technology level.
4.1.2 On-board operators performing helicopter laser scanning operations shall meet the following requirements.
-Meet the requirements of GB 26859 for staff in terms of physical conditions, safety production knowledge and skills, electrical knowledge and business skills, etc.
Requirements;
--Able to provide theoretical knowledge support for flying under special conditions, and put forward opinions and suggestions on optimization of flight modes;
--Master the working principle of the airborne laser scanning system, be familiar with the various operations of the airborne laser scanning system, and be able to complete it on a helicopter
The ability of laser scanning data collection and certain on-board equipment emergency troubleshooting capabilities.
4.2 Equipment
4.2.1 Airborne laser scanning system
4.2.1.1 The laser scanning system, pendants and accessory parts carried outside the helicopter shall have airworthiness permits.
4.2.1.2 The effective range of laser scanning should not be less than 300 m, and the data storage space should meet the requirements of continuous working for 8 hours.
4.2.1.3 The laser safety level of the airborne laser scanning system should be level I.
4.2.1.4 The electromagnetic compatibility design of the helicopter laser scanning pod shall comply with the relevant regulations of RTCA/DO-160, and the distance between AC and DC of 500 kV and above
The transmission line should be able to be used normally at 20 m.
4.2.2 GNSS receiver
4.2.2.1 The environmental requirements of electronic components such as airborne GNSS receivers shall meet the following requirements.
--Working temperature is 0 ℃～40 ℃;
--The storage temperature is between -10 ℃ and 50 ℃.
4.2.2.2 Special personnel should be assigned to guard the ground GNSS reference station and monitor the working status of the GNSS receiver in real time. Measures should be taken to prevent rain and lightning.
Shi.
4.2.3 Other equipment
4.2.3.1 The operation of electronic equipment involved in data collection operations shall comply with the requirements of the equipment manual.
4.2.3.2 Electronic equipment required for operations on a helicopter should not interfere with the helicopter's flight, communication and navigation systems.
4.3 Operating environment and weather
4.3.1 For mountain operations, the visibility under the cloud should be no less than 3 km, the vertical visibility should be no less than 500 m, and the wind speed should be no more than 5 m/s. level
For the original operation, the visibility under the cloud should be no less than 2 km, the vertical visibility should be no less than 500 m, and the wind speed should be no more than 8 m/s.
4.3.2 Under special or emergency conditions, if it is necessary to perform laser scanning operations in severe weather, the site climate and working conditions should be taken into consideration.
Formulate safety measures and proceed only after approval by the operator.
4.4 Personnel fatigue prevention measures
4.4.1 The working hours of crew members should not exceed 14 hours throughout the day.
4.4.2 During any continuous 24 hours, the accumulated flight time should not exceed 10 hours.
4.4.3 Within 7 consecutive days, the accumulated flight time should not exceed 40 hours.
4.4.4 In a calendar month, the accumulated flight time should not exceed 120 hours.
5 Preparation before homework
5.1 Preparation stage
5.1.1 According to the situation of the transmission line to be scanned, understand the requirements for collecting laser scanning data, clarify the purpose of the flight, and formulate laser scanning
Work plan.
5.1.2 The true height and speed of the flight should be determined according to the operating requirements and the voltage level of the transmission line to be scanned.
5.1.3 The line ledger of the transmission lines to be scanned shall be collected, and line trend charts and navigation files shall be made.
5.1.4 The range of the laser scanning operation measurement area should be the transmission line corridor. Under the premise of ensuring the measurement range and accuracy, it is better to select as few as possible
route.
5.1.5 According to the existing map data and aerial photography sketches, factors such as changes in the terrain of the transmission line and the coverage of laser scanning should be considered, and it is reasonable
Divide flight segments. It is advisable to cover the transmission line section at a small angle corner within the same straight route section.
5.1.6 The on-board operator shall conduct a comprehensive inspection of the laser scanning equipment to ensure the safety of the equipment in flight.
5.2 Direct preparation phase
5.2.1 The captain should check the performance of the helicopter. After loading the equipment, you should perform adaptive flight to ensure that the flight indicators are within a safe range
Inside.
5.2.2 Aircraft maintenance personnel should check that the equipment installation racks, pods, control cabinets, GNSS installation racks and cables are firmly fixed, and there is no safety hidden.
Suffer.
5.2.3 The crew should understand the flight dynamics of the flight area and obtain the latest aeronautical information, communications and navigation data.
5.2.4 The crew should go through relevant procedures such as the flight mission statement and the flight release form.
5.2.5 The system operator shall conduct power-on debugging of the equipment to ensure the normal operation of the equipment.
5.2.6 The security personnel should fully understand the task and schedule, and inspect and prepare the security vehicles.
6 Work implementation
6.1 Laser scanning data collection
6.1.1 Before the helicopter takes off, avoid nearby tall trees or buildings blocking the GNSS signal.
6.1.2 After the power supply voltage on the helicopter is stable, the power switch of the airborne laser scanning system can be turned on. According to laser scanning equipment
It is required that the laser can be turned on after reaching the predetermined height.
6.1.3 Laser scanning data collection should fly directly above the transmission line to obtain data.
6.1.4 During laser scanning operations, the flight altitude change, yaw distance and helicopter roll angle change should meet the relevant requirements in the operation plan.
6.1.5 The airborne laser scanning system scans the transmission line and collects various data (including laser point cloud data, image data, GNSS/IMU
Data, meteorological data), the system operator should fill in the flight record sheet in time (see Appendix A).
6.2 Work safety
6.2.1 After the helicopter arrives at the patrol area, first verify the name of the patrol route and the number of the tower, and observe the terrain and geomorphology around the operation route.
And choose to enter the working position with an angle of about 45° to the line.
MH
6.2.2 When the distance between the sidelines of two adjacent circuits is less than 100 m (150 m in mountainous areas), the helicopter should not be in the air between the two circuits
flight.
6.2.3 The laser scanning range should cover both ends of the starting point of the transmission line. Under the premise of ensuring safety, the helicopter can fly over the substation, but not
It is advisable to hover over the substation or fly at low altitude.
6.2.4 When the operation site is in a narrow and long area or special terrain such as a large range or a large drop, the pilot should follow the helicopter’s performance and meteorological conditions
Determine whether to continue flying, or adjust helicopter flight parameters.
6.3 Data Security
6.3.1 For related electronic documents and collected raw data, special storage devices should be set up, and media with good performance and high stability should be selected.
Quality as a storage device.
6.3.2 Data should not be processed on the mobile hard disk where the original data is stored.
6.3.3 Attention should be paid to data backup and preservation to prevent data loss caused by equipment damage or human deletion. The original data should be kept intact.
Prevent leakage.
7 Work after homework
After the completion of the task, a flight commentary should be carried out. The main content includes but not limited to a summary of the flight situation on the day,
Evaluate the situation, flight safety and various guarantees, propose improvement measures for the problems found, and educate those who violate the rules and regulations
criticism.
AA
Appendix A
(Informative appendix)
Flight record sheet
The basic situation record and data collection situation record of laser scanning operation items are shown in Table A.1.
Table A.1 Operation flight record sheet
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