ISO 45001 GNSS Receiver

　　I. ISO 45001-certified Occupational Health and Safety Management System

　　GNSS receiver companies that have achieved ISO 45001 certification must establish a comprehensive occupational health and safety management system, focusing on personnel safety and scenario-based protection to adapt to the precision production and high-frequency outdoor use of GNSS receivers. This includes:

　　Production Scenario Safety Management

　　Special safety measures are implemented for core GNSS receiver production processes (such as high-precision chip soldering, motherboard assembly, and outdoor commissioning). During chip soldering (involving micro-components), an anti-static area with a grounding resistance of ≤1Ω must be designated. Operators must wear anti-static clothing, wristbands, and fingertip covers to prevent static electricity from penetrating the chip and preventing electric shock. During motherboard assembly, automated screw machines are used instead of manual screwing, and mechanical guardrails (spacing ≤5mm) are installed to prevent fingers from becoming entangled in transmission components. During outdoor commissioning (such as on-site calibration of base station receivers), operators are equipped with GPS. A positioning and emergency bracelet (supporting one-touch alarm), a fall prevention harness (for high-altitude commissioning), and sun- and rain-proof workwear are provided. Work warning zones are also designated (with warning cones) to prevent unauthorized personnel from entering and causing collisions.

　　Personnel Health Protection Mechanism

　　A differentiated health monitoring system has been established: Personnel engaged in long-term outdoor commissioning (such as surveying and mapping scenarios) will undergo quarterly occupational health examinations (focusing on joint strain and sun damage). Summer anti-heat and cooling medications (such as Huoxiang Zhengqi Decoction) are provided, and winter cold-resistant workwear is provided. Personnel with frequent contact with precision instruments (such as chip testing) will undergo annual vision and hearing tests. Work areas will be equipped with blue light protection lighting (≥300 lux), and mandatory rest breaks are implemented every two hours to prevent visual fatigue. Regular safety training (at least six times per year) will cover outdoor emergency rescue (such as heatstroke and trauma treatment), high-altitude work regulations, and instrument leakage protection to ensure personnel master specific safety skills.

　　Safety and Compliance Throughout the Supply Chain

　　For the handling of raw materials (such as high-precision chips and metal casings), anti-static turnover boxes (load capacity ≤ 20kg) are used to prevent back strain caused by manual overloading, and stacking height is limited to 1.2 meters to prevent tipping. Finished product storage areas are divided into hot and cold zones. Temperature-sensitive receivers (such as those used in car navigation systems) are stored at a temperature range of 15°C to 25°C and equipped with temperature and humidity alarms. For transportation, heavy base station-type receivers (weighing ≥ 10kg) are encapsulated with shock-absorbing foam and fixed brackets. Non-slip gloves and loading and unloading instructions are provided on-board to prevent slipping and bumping during handling.

　　II. Key Points Related to GNSS Receiver Core Technical Parameters and Safety

　　(I) Key Electrical Performance Indicators (Taking into Account Both Technical and Safety Compatibility)

　　GNSS receiver electrical performance must meet high-precision positioning standards, and parameter design is directly linked to operational safety and personnel protection. Regarding positioning accuracy, surveying and mapping scenarios require ≤1cm (static)/≤50cm (dynamic). High accuracy reduces repetitive work and shortens personnel's time outdoors (reducing the risk of heatstroke, rain, etc.). Power consumption must be tailored to the scenario: handheld receivers must be ≤5W (battery life ≥8 hours) and vehicle-mounted receivers must be ≤10W, avoiding frequent charging in the field (reducing the risk of electric shock from external power supplies). Anti-interference capabilities must support multi-constellation (GPS/Beidou/GLONASS) fusion, suppress multipath errors (such as positioning drift caused by building obstructions), and avoid repetitive work caused by equipment failure (reducing labor intensity). Input impedance must be uniformly 50Ω to match the interface of external devices (such as data loggers) to prevent impedance mismatches that could cause circuit overload or equipment burns (preventing burns). (II) Mechanical and Environmental Safety Adaptation

　　GNSS receivers for different application scenarios must prioritize mechanical and environmental characteristics to ensure personnel safety and device stability. Handheld receivers (such as those used for outdoor inspections) feature a lightweight design (weight ≤ 500g) and a housing made of non-slip silicone (friction coefficient ≥ 0.8) to prevent hand strain or device slippage from prolonged holding. Vehicle-mounted receivers (such as those used for autonomous driving positioning) are equipped with shock-absorbing brackets (compatible with 10Hz-2000Hz frequency band, vibration acceleration ≤ 15g) and cushioning pads at fixed points to prevent the device from falling and injuring personnel due to vehicle turbulence. Base station receivers (such as surveying and mapping base stations) feature a fiberglass housing with an IP68 protection rating (protected against heavy rain and dust intrusion). A lightning protection grounding port (grounding resistance ≤ 4Ω) is included on the bottom to prevent leakage or lightning strikes during thunderstorms. Removable lifting ears (compatible with aerial work equipment) are also designed to prevent falls during manual handling.

　　III. Mainstream Product Types and Safety Application Scenarios

　　GNSS receivers can be divided into three categories based on their application scenarios. Each type must be adapted for use in accordance with ISO 45001 safety requirements, prioritizing the principle of "scenarios first":

　　Handheld GNSS Receivers

　　For outdoor inspections (such as those in power plants and forestry) and portable surveying and mapping, they must be lightweight (≤500g), have a non-slip design (with a silicone grip), and feature an ergonomic button layout to prevent finger strain from frequent pressing. They must also be equipped with a removable lithium battery (hot-swappable) to avoid the risk of contact with the power supply during outdoor charging. They must also feature anti-glare glass for visibility in bright sunlight, reducing eye strain caused by squinting.

　　Vehicle-mounted GNSS receivers

　　Compatible with connected vehicles, autonomous driving, and in-vehicle navigation, they must feature a shock-absorbing mounting structure (with a bracket compatible with different vehicle models) to prevent device movement during sudden braking or bumps. The housing edges should be rounded (radius ≥ 2mm) to prevent scratches during installation. They should support a low-power mode (standby power consumption ≤ 1W) to reduce the load on the vehicle's circuits. Overvoltage protection should also be provided (compatible with 12V/24V vehicle power supplies) to prevent fires caused by overloaded circuits.

　　Base Station GNSS Receiver

　　Used for timing at surveying and mapping base stations and communication base stations, these receivers are typically fixed-mounted and require a dedicated lifting interface (capable of supporting ≥2 times the device's weight) for installation via an aerial work platform (to avoid manual climbing risks). They feature adaptive temperature and humidity control (automatically adjusting operating mode from -40°C to +70°C) to prevent equipment malfunctions caused by extreme temperatures and reduce the need for outdoor maintenance. External cables utilize waterproof connectors (IP68 rating) to prevent rainwater infiltration and short circuits. Cable lengths are marked with a safe drag distance (≤5 meters) to prevent the device from tipping over.

　　IV. Key Selection Recommendations (Including ISO 45001 Safety Verification)

　　Technology and Safety Dual-Dimensional Matching

　　For outdoor handheld applications, prioritize lightweight (≤500g), non-slip, and long-lasting (≥8 hours) models to reduce hand strain and the risk of charging in the wild. For in-vehicle applications, verify the shockproof rating (≥15g) and mounting bracket compatibility to prevent the device from falling. For base station applications, focus on lightning protection and grounding design (grounding resistance ≤4Ω), hoisting structure safety, and compliance with high-altitude work regulations.

　　ISO 45001 Qualification Verification

　　When selecting a product, confirm that the supplier holds ISO 45001 certification and require production safety control records (such as anti-static test reports and outdoor commissioning safety procedures). If custom production is involved (such as specialized receivers for specialized industries), request the supplier to provide safety operation plans for the customized processes (such as personnel protection measures in special environments) to ensure no occupational health risks throughout the entire process.

　　Installation and Usage Safety Tips

　　Base station receiver installation must be performed by personnel qualified for high-altitude work, wearing a safety harness and insulating gloves. Follow the "ground first, power on" principle. Before using a handheld receiver, check the integrity of the anti-slip silicone and the seal of the battery port to prevent rainwater infiltration. After installation, test the vehicle-mounted receiver for secure mounting under sudden braking. Regularly inspect the anti-vibration bracket for wear (every three months) to prevent loosening and potential safety hazards.