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How to choose a parking sensor?

Parking radars today occupy a mandatory place in the optional provision of the car. They still compete with rear-view cameras, but for most drivers the choice is unambiguous - in favor of parking sensors. Such systems not only help novice drivers to learn the nuances of driving in crowded conditions, but also save time for experienced car owners who need to park quickly and safely. How useful will be the decision to choose this system, depends on its configuration. Perhaps the most important component of this radar is the parking sensor, which directly records the data on the position of the vehicle relative to outside objects. Therefore, his choice determines the effectiveness of the system as a whole.

The sensor in the parking system

The work of modern type parktronics is based on the principle of ultrasonic radiation, the characteristics of which allow us to determine the levels of critical approximation of the machine to other vehicles, poles, curbs, trees, etc. The sensor in this system acts as an ultrasonic wave generator, also taking a reflected impulse. The signal processed already in the central controller allows calculating the distance to the nearest objects. As a rule, the sensor of the parking system covers a limited area, so in the singular it is hardly used. The minimum set assumes the presence of 2 sensors, and the maximum configurations allow for the installation of 8 radiators on one side. The quality of the system is affected not only by the number of detectors, but also the way they communicate with other components of the system.

Types of parking sensors

The main difference between parking sensors is the type of installation. In families of large manufacturers, mortise and overhead models are encountered. The devices of the mortise type are mounted in the bumper niche, requiring the performance of mechanical operations with the metal. For reliable fixing, manufacturers also offer additional installation hardware. For example, parking sensor ParkMaster in the modification FJ provides a rubber damper and an improved waterproofing system. With regard to models of an overhead type, they are attached at the expense of a special adhesive backing. The advantages of this method of installation include the exclusion of the need to cut the bumper.

The sensors differ by the way the signal is transmitted. There are wired and wireless models. Devices that communicate with the central complex through wiring, are stable in operation, but installation will not do without laying cables. The wireless parking sensor, for obvious reasons, is easier to install, but many owners of such models note the effect of third-party radio interference on the quality of signal transmission.

Sensor Specifications

One of the key performance characteristics of the sensor is the range. It determines the distance at which, in principle, the distance can be fixed. Devices with low sensitivity indicators have a coverage zone of the order of 30-40 cm. Premium versions on this indicator can reach 120-150 cm. But this does not mean that models with a large working area are more profitable. They are more suitable for outboard cars, and for a typical car, a detector with a radius of up to 50 cm is quite suitable. Such modifications allow less false signals and are not so demanding of power supply. However, there are also combined schemes of installation, in which the rear parking sensors have an increased coverage range, and the front ones - the same 30 cm. Another important characteristic is the diameter of the housing. The sensor is a very compact device, but its design parameters can influence the future installation method. Standard models have an average diameter of 16-18 mm on average.

How to choose the parking sensor correctly?

Usually, the sensors are included in sets of ready-made sets with parking radars. But if desired, you can include in it and sensors from third-party manufacturers. To do this, it is necessary to evaluate the compatibility with the control complex by the characteristics of signal reception. Next, the configuration parameters of a particular model are determined: the detector dimensions, the shape, and the presence of protective envelopes. It is desirable that the device has coatings, protecting from dirt, moisture and mechanical shocks. You should also consider the possibility of combining with a video camera. In particular, the rear parking sensors can enter into a single installation platform with a matrix that will send and video signal to the monitor in the cabin. This possibility should be envisaged at the stage of purchase. Do not ignore the aesthetic nuance. To ensure that the sensor housing does not stand out against the general background of the car exterior, it is necessary to determine in advance and with the color gamut. In standard versions, manufacturers offer silver and black, but there are other shades - including custom-made.

Optimum number of sensors

The more sensory elements, the higher the coverage of the "blind" zones and, correspondingly, the lower the risk of collision. On the other hand, 6-8 emitters increase the sensitivity of the system, and with it the probability of false signals. Therefore, in choosing it is important to maintain a balance, determined by the needs of the driver. The minimal set with 2 sensors will provide an opportunity for easy movement next to neighboring bumpers and curbs. The optimal configuration, in which the parking radar is supplied, is 4 sensors on the rear side with 2 front sensors. In this case, a safe parallel parking will be possible .

Manufacturers

Segment is quite saturated, since it involves almost all firms that produce electronics for cars. The leaders are BlackView, ParkCity and SHO-ME. ParkMaster parking sensor can be identified, which even in budgetary versions is characterized by a wide coverage area and reliable protection from interference. The cost of production of these brands varies from 700 to 1500 rubles. average.

Conclusion

The success of parking radars with sensors is explained by the fact that there are almost no alternative solutions on the market with that degree of efficiency. However, in the parktronic complex itself, there is competition between the individual components. Replace the parking sensor with an electromagnetic tape. This strip on a metallized base, which is glued from inside the bumper. This solution is advantageous in that it completely eliminates the installation physical operations during installation and minimizes the "blind" zones during operation. In turn, ultrasonic sensors benefit from more accurate fixation of the object in the field of control.

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