I. Background of Intelligent Traffic Monitoring Equipment
   Intelligent traffic monitoring equipment is a device system that uses multiple advanced technologies to conduct real-time monitoring and management of traffic conditions. The following is a relevant introduction:
Common types
   Electronic police: By sensing road pressure through sensor wires and using technologies such as photoelectric imaging, they monitor and capture violations like running red lights, driving against traffic, and speeding around the clock.
▲ Smart cameras: Covering products such as eco-friendly checkpoints, eco-friendly electric alarms, and eco-friendly micro-checkpoints, they adopt multi-spectral fusion technology and deep learning algorithms to clearly capture vehicle information and solve the problem of light pollution.  
▲ Geomagnetic sensor: Generally buried underground, it detects the presence and passage of vehicles by sensing the interference of vehicles on the Earth's magnetic field, and can accurately count the volume of traffic.  
▲ Microwave radar: It uses microwave signals to detect the speed and distance of vehicles, monitor the driving status of vehicles in real time, and is often used for speeding monitoring and traffic flow analysis.  
▲ Illegal parking capture system: It uses an automatic tracking ball camera to automatically detect and capture illegally parked vehicles, identify license plates and take photos for record. If the set time is exceeded, it will be determined as illegal parking.  
Function and role
▲ Traffic flow monitoring: Real-time acquisition of information such as vehicle volume, vehicle speed, and lane occupancy rate, providing data support for traffic planning and signal control.
▲ Traffic violation supervision: Automatically identify and capture traffic violations such as running red lights, speeding, and driving in the wrong direction to enhance the efficiency and accuracy of law enforcement.
▲ Traffic accident early warning and handling: Timely detection of traffic accidents, automatic alarm and notification to relevant departments, providing on-site images and data information for accident handling.
▲ Traffic guidance and command: By integrating real-time traffic data, it provides drivers with road condition information and optimal route planning through electronic display screens, mobile apps, and other means.
   New energy lithium batteries, with their advantages of high energy density, long cycle life and environmental friendliness, have gradually become the preferred solution for intelligent traffic monitoring systems. This solution is designed to meet the application requirements of lithium batteries in intelligent traffic monitoring system equipment projects, ensuring that lithium batteries can provide safe, efficient and customized power solutions for their equipment in special fields.
II. Analysis of Equipment Demand Characteristics
1. Equipment application characteristics
▲ Equipment type: Real-time communication, monitoring operations, etc. in plain, mountainous, Marine and other environments.
▲ Working environment: Temperature range, from -40℃ to +70℃, high temperature, extremely cold, high humidity environment, etc.
▲ Power demand: Large continuous/peak power, long battery life, and the voltage platform generally adopts high-voltage platforms such as 7.4V or 12V.

2. Core requirements for lithium batteries
▲ High security: Real-time communication and monitoring operations on various traffic roads, etc.
▲ Long cycle life: ≥2000 times (80% capacity retention rate).
▲ Fast charging: Supports 1 to 2 hours of fast charging, suitable for high-intensity work.
▲ High-power discharge: The battery supports continuous high-current discharge, meeting the high-current requirements of high-power devices and ensuring their continuous and stable operation.
▲ Intelligent management: The BMS (Battery Management System) is equipped with functions such as overcharge protection, overdischarge protection, overcurrent protection, short-circuit protection, temperature protection, and fault diagnosis, making the battery more intelligent.
▲ Discharge temperature range: -40℃ to +70℃. In a low-temperature environment of -40℃, the battery's discharge efficiency is over 70%. A wider range of ambient temperature adaptability.
▲ Charging temperature: -20 ℃ to +50℃ range, with a wider adaptability to environmental temperatures.

III. Scheme Design
1. Battery selection
▲ Cell types: Ternary lithium batteries (ultra-low temperature, high energy density, high safety), lithium iron phosphate batteries (ultra-low temperature, high safety, long life), sodium-ion batteries (high safety, long life, good low-temperature performance). Different system cells are selected and matched according to different application scenarios.
▲ Battery combination configuration structure: Series and parallel schemes are designed based on the required voltage and capacity of the equipment to meet the requirements of different output voltage platforms.
▲ Structural design: IP68 protection grade, shock-resistant structure, explosion-proof enclosure (suitable for extreme environments or flammable and explosive environments).

2. BMS Management System
Core functions:
▲ Real-time monitoring of the voltage, temperature, SOC (State of Charge), and SOH (State of Health) of individual battery cells.
The battery charging active balancing technology enhances the consistency of usage among battery cells and extends the lifespan of the battery pack.
▲ The I2C/SMBUS/CAN/RS485 communication interface enables data interaction and communication with the main control system of the equipment.
The Coulomb computing method makes the battery SOC more accurate and the battery smarter.

3. Charging solution
▲ Charging equipment: Customized smart charger/charger/charging cabinet/solar photovoltaic, supporting constant current and constant voltage (CC-CV) charging.
▲ Charging strategy: Select fast charging or slow charging mode based on the working conditions to prevent battery overload.
▲ Intelligent control and management: Based on the technical performance characteristics of the battery, the battery charging process and fault diagnosis are intelligently controlled.

IV. Safety and Compliance
1. Safety protection
▲ Thermal management: By adopting a reasonable structural layout, thermal runaway is reduced. Air cooling/liquid cooling systems can be used (for high-power scenarios) to ensure temperature uniformity during battery use and effectively control battery thermal runaway.
▲ Fault protection: Multiple hardware protection mechanisms such as overcharge, overdischarge, short circuit, overcurrent, and over-temperature.
▲ Fault protection: Multiple hardware protection mechanisms such as short circuit, overcurrent, and over-temperature.
▲ Explosion-proof certification: The design can pass various safety regulations certifications.

3. Standard compliance
▲ It complies with national standards such as GB31241-2022 (Safety Technical Specification for Lithium-ion Batteries and Battery Packs for Portable Electronic Products), GB 17761-2024 (Safety Technical Specification for Electric Bicycles), GB/T 34131 (Lithium Batteries for Power Storage), GB 38031 (Safety Requirements for Batteries for Electric Vehicles), etc.
▲ How to obtain domestic and international certifications: GB certification, UN38.3 certification, UL certification, IEC certification, CE certification and other various certification requirements;

V. Project Implementation Plan

VI. Economic Benefit Analysis
1.In terms of cost
▲ The initial investment in the early development stage is relatively large, which gives it an absolute advantage in terms of long-term usage costs.
2. Energy-saving benefits:
▲ It adopts low-power consumption technology application and intelligent sleep mechanism to reduce electronic waste and lower carbon emissions.
3. Maintenance cost:
▲ The maintenance-free design allows for direct replacement after the service period, significantly reducing the cost of maintenance personnel.

VII. After-sales Service
1. Warranty period: 1 to 5 years of after-sales warranty, with a lifespan of 500 to 2,000 cycles or more (whichever comes first).
2. Remote monitoring: According to the actual demand status, the cloud platform provides real-time monitoring of the battery status and early warning of potential faults.
3. Emergency Response: Respond within 4 hours, provide solutions within 8 hours, and offer on-site technical support within 24 to 48 hours.

Hint:
▲ The plan needs to be refined based on specific equipment parameters (such as voltage, capacity, and size limitations).
▲ If special environments (such as explosion-proof and aerospace) are involved, corresponding protective designs need to be added.
▲ It is recommended to conduct joint debugging with the equipment manufacturer to ensure that the battery is compatible with the entire machine system