Side Detection Sensor – Types, Applications, and Benefits

A side detection sensor can be utilized in various vehicles in several ways. This sensor helps detect nearby obstacles and vehicles to alert the driver. So, a driver can make well-versed decisions and avoid collisions. Generally, this sensor comes built into the most advanced driving assistance systems (ADAS). 

Side detection sensors have gotten significant buzz over the last few years. That is mostly due to the advancement of safety features in cars, trucks, and other vehicles. However, many drivers are still unaware of this sensor. That said, let’s explore everything there is to know about it in this comprehensive guide!

What Is a Side Detection Sensor?

Side detection sensors are sophisticated electronic devices that detect objects or vehicles in the blind spots of a vehicle. These sensors utilize various technologies such as ultrasonic, radar, LiDAR, and cameras. Their job is to continuously monitor the area surrounding the vehicle’s sides.

With accurate detection, sensors provide drivers with crucial information to make safe maneuvers. That is especially true when changing lanes or making turns. 

These sensors play a pivotal role in preventing accidents and enhancing driver awareness. With the increasing complexity of modern vehicles and the rise of urban congestion, the risk of collisions due to blind spots has become a significant concern. Side detection sensors address this issue by providing real-time alerts to drivers, notifying them of the presence of vehicles or obstacles in their blind spots.

Furthermore, they are integral components of advanced driver assistance systems (ADAS) and autonomous vehicles. They contribute to the development of features like blind spot monitoring, lane change assistance, and collision avoidance systems.

Types of Side Detection Sensor

You will find several types of side detection sensors. However, they have three primary categories. Let’s go through them:

1. Ultrasonic Sensors

Ultrasonic sensors utilize sound waves to detect objects around the vehicle. These sensors emit high-frequency sound pulses. Then, they analyze the echoes to determine the distance and location of nearby objects. 

Ultrasonic sensors are commonly used in parking assistance systems. They can effectively detect obstacles even in adverse weather conditions.

2. Radar Sensors

Radar sensors use radio waves to detect objects in the vehicle’s vicinity. They emit radio waves and analyze the reflections to identify obstacles. These sensors are known for their long-range detection capabilities.

That is why they are often employed in advanced driver assistance systems (ADAS). They come in handy for functions like adaptive cruise control and collision avoidance.

3. LiDAR Sensors

LiDAR (Light Detection and Ranging) sensors utilize laser light. It measures distances and creates detailed 3D maps of the surroundings. LiDAR sensors offer high-resolution scanning and are particularly effective in detecting objects with precision. That makes them valuable for autonomous driving applications and advanced safety systems.

4. Camera-Based Sensors

Camera-based sensors use image processing algorithms. They analyze visual data captured by cameras installed on the vehicle. These sensors can detect lane markings, traffic signs, and other vehicles. Ultimately, they provide valuable information for various safety features such as lane departure warnings and pedestrian detection.

Applications of Side Detection Sensors

Side detection sensors are versatile devices with various vehicle safety and convenience applications. Let’s look at this subject in detail to provide a clearer picture:

Blind Spot Monitoring

Blind spot monitoring systems utilize detection sensors to alert drivers of vehicles or obstacles in their blind spots. When a vehicle enters the blind spot zone, the sensors detect its presence and trigger visual or audible alerts to warn the driver. This functionality helps prevent accidents caused by lane-changing maneuvers when another vehicle is present in the adjacent lane.

Lane Change Assistance

Lane change assistance systems leverage these sensors to provide additional assistance to drivers when changing lanes. By continuously monitoring adjacent lanes, these systems can detect the presence of vehicles. That could be approaching from behind or rapidly closing in the driver’s blind spot.

If the driver signals a lane change while a vehicle is detected, the system may provide warnings or intervene to prevent a potential collision.

Collision Avoidance Systems

Collision avoidance systems integrate side sensors with other technologies to detect and prevent potential collisions. These systems can analyze the vehicle’s surroundings in real time and identify potential collision risks. That includes vehicles, pedestrians, or obstacles in close proximity. 

It can either issue warnings to the driver or autonomously intervene by applying brakes. So, the sensors can help mitigate the risk of accidents and enhance overall safety on the road.

Parking Assistance

Parking assistance systems employ detection sensors to assist drivers during parking maneuvers, especially in tight or congested spaces. They detect nearby obstacles, such as vehicles, walls, or pedestrians. Also, they provide visual or audible cues to guide the driver while maneuvering into parking spaces.

In fact, some advanced parking assistance systems may even offer semi-autonomous parking functionality. For instance,  the vehicle can automatically steer into a parking spot with minimal driver input.

Installing Side Detection Sensor – Complete Process

Here’s how to install a side detection sensor on your vehicle. Remember that the installation method can vary based on several factors. That includes the sensor’s type, your vehicle’s design, etc. However, let’s look at the universal procedure:

Step 1: Gathering the Essentials

The first step is to gather all the equipment required for installation. Here’s what you will need:

• Side detection sensor kit (includes sensors, wiring harness, control module, and mounting hardware)
• Screwdriver set
• Wire cutters/strippers
• Electrical tape
• Drill and drill bits (if necessary)
• Socket wrench set

Step 2: Sensor Placement Location

Identify the optimal locations on each side of your vehicle to mount the detection sensors. These locations are usually on the rear bumper or near the side mirrors. Ensure that the sensors have a clear line of sight and are positioned to cover the vehicle’s blind spots effectively.

Using the mounting hardware provided in the sensor kit, securely attach the sensors to the chosen locations. Make sure they are aligned correctly and firmly attached to the vehicle’s surface to prevent any movement or misalignment.

Step 3: Control Module & Wiring

Locate a suitable location inside the vehicle to mount the control module. That is typically placed under the dashboard or inside the trunk. Ensure that the location is easily accessible for wiring and future maintenance.

Carefully route the wiring harness from each sensor to the control module location. Use wire clips or zip ties to secure the harness along the vehicle’s existing wiring looms, keeping it neat and tidy. Connect each sensor’s wiring to the corresponding ports on the control module according to the manufacturer’s instructions.

Locate a suitable power source for the control module. That could be the vehicle’s fuse box or a constant 12V power supply. Connect the power and ground wires from the control module to the selected power source and ground point.

Step 4: Test & Finalize the System

Before finalizing the installation, test the side detection system to ensure proper functionality. Turn on the vehicle’s ignition and activate the system according to the manufacturer’s instructions. Test each sensor by moving objects or vehicles into their detection zones and verify that the alerts are triggered correctly.

Have you confirmed that the side detection system is working correctly? Secure all wiring and components in place using zip ties or adhesive mounts. Seal any exposed connections with electrical tape or heat shrink tubing to protect them from moisture and corrosion.

How to Maintain Side Detection Sensors

Installing the side detection sensor isn’t enough. You must also know how to maintain these systems. Let’s look at their maintenance: 

Clean the Sensors Regularly

Dirt, dust, and debris can accumulate on the surface of the sensors, affecting their accuracy. To prevent this buildup, make it a habit to clean the sensors regularly. You can do so during your vehicle’s routine washing. Use a mild detergent and a soft cloth to gently wipe away any dirt or grime from the sensor’s surface. Avoid using abrasive cleaners or scrubbing too harshly, as this could damage the sensors.

Inspect Wiring and Connections

Periodically inspect the wiring harness and connections associated with the side detection sensors. Look for any signs of wear, damage, or corrosion that could affect the electrical conductivity or integrity of the connections. Ensure that all wiring is securely fastened and properly insulated to prevent moisture intrusion or short circuits. 

Calibrate as Necessary

If you notice any discrepancies or inconsistencies in the sensor’s performance, it may be necessary to recalibrate the system. Calibration ensures that the sensors are accurately detecting objects and providing timely alerts to the driver.

Address Any Malfunctions Promptly

Have you encountered any issues with the side detection sensors? Address them promptly to prevent further problems. Diagnose the issue using the vehicle’s onboard diagnostic system or seek assistance from a professional mechanic or dealership. Ignoring sensor malfunctions could compromise your safety on the road.

Benefits of Side Detection Sensors

Here are some benefits of side detection sensors:

• Enhanced Safety: These sensors provide real-time alerts and warnings, reducing the risk of accidents caused by blind spots and obstacles.
• Reduced Accidents and Collisions: By improving visibility and awareness of surroundings, detection sensors help drivers avoid collisions. 
• Improved Driving Experience: With enhanced safety features, drivers can enjoy a more confident and stress-free driving experience. 
• Integration with Autonomous Vehicles: Side sensors are integral components of autonomous driving systems, enabling vehicles to navigate safely and detect obstacles.

Conclusion

Side detection sensors are available in the market in various forms. You can either see them in factory-installed safety systems in vehicles. Otherwise, many aftermarket driving assistant tools may also have these detection sensors. Either way, they offer enhanced protection and peace of mind. These are two factors that every driver should have, especially in today’s crowded and fast-paced roads!