Parking radar allows you to safely drive in tight conditions. With the help of sensors, the driver controls the distance of the car body to the nearest objects, reducing the risk of collision. The quality of the parking sensors depends on the configuration of its installation. There are different ways to integrate and position sensors, as well as the channels for their interaction with the control unit. Manufacturers recommend installing parking sensors with the maximum coverage of the space in front of the car, but this is not always advisable. In choosing a wiring diagram, it is important to take into account the many nuances that will be discussed later.
Number of sensors and configuration of their placement
Typically, sets of 4, 6, and 8 sensor emitters are used. In the process, each sensor by processing an ultrasonic pulse allows you to estimate the distance to an external object. Sensitive elements are located at the rear and in front of the car, and the specific number on each side depends on what configuration the parking sensors provide - 6 sensors are usually divided into 2 and 4. In the front, 2 and 4 are installed at the rear. The unevenness is due to the fact that the most dangerous “blind” zones are precisely behind.
The maximum set of 8 sensors implies a single layout - 4 sensors on each side. Experts do not recommend using 6 sensors on one side for the reason that they will provide too high sensitivity and a corresponding increase in the percentage of false positives. It is also recommended to install parking sensors in compliance with the distance from the ground and the distance between the individual emitters. The height of the installation point from the roadway according to the instructions is 55-60 cm. The gaps between the sensors must be maintained in the range of 10-15 cm.
Insertion Installation
This is a classic installation method, which involves creating holes in the body or bumper of the car. To begin with, you should choose the best place for sensor integration. The mounting point should be located away from the protruding structural parts of the machine, including a tow hitch, spare wheel fasteners, towing eyes, etc. Next, a cable is connected to connect the sensor and the control unit. Wires should not be placed in close proximity to the exhaust system or power harnesses of local electrical equipment. It is advisable to physically install the parking sensors in the holes made by the complete drill. In this case, the optimum diameter will be ensured without the risk of getting a narrowed or expanded niche. The sensor is embedded in the prepared hole using rubber seals, which are also supplied.
Surface mounted installation
This method is beneficial in eliminating the need for a hole for sensor integration. It should be noted that the formation of the mounting niche is due to the need to fix the sensor element, as well as laying the communication channel through the wiring. It is easier to install parking sensors using the laid-on method, since in this case it is enough to use the special adhesive solution included in the kit. Actually, according to the same principle, the Parktronic electromagnetic tape is fixed - an analog of ultrasonic sensors.
As for wiring, overhead models most often work wirelessly. Therefore, the question of how to install the overhead parking sensors correctly involves only correct marking, glueing, and further tuning.
Installation of other functional components
The minimum configuration of the parking radar, in addition to sensors, also provides for a control unit and a display. The first one processes the signals from the sensors, and the second presents the driver with specific data on the distance to the objects. The controller unit can be installed in the luggage compartment, but so that it is reliably protected from mechanical damage, vibration and moisture. Installation is carried out using a special metal frame into which the unit is inserted. How to put parking sensors yourself? To do this, it is enough to arm yourself with a screwdriver, complete self-tapping screws or bolts. In the prepared technical holes, it is necessary to screw the frame, and then install the controller with screws of a different format. The display is mounted in a place visible to the driver - usually on the front panel. It can be fixed with brackets or Velcro, which, however, is unreliable.
Wiring diagram
Before connecting, disconnect the control unit from the power supply, and then visually determine the wiring channels. For example, parking sensors, 6 sensors of which are connected by the classic wired method, will provide for two-way connection to the controller unit. That is, 4 lines will need to be connected to one side of the relay, and 2 - to the other, directed to the driver. From the front front side, the relay of the control unit usually has connectors for connecting an information wire, a supply circuit, etc.
Wireless systems only require the connection of a controller unit and, in some cases, a display for power supply. Power should only be provided by the battery and the vehicle electrical system. Pulse sources for such a connection scheme are not suitable. You should also evaluate compatibility with the voltage indicator. For example, Sho-Me parking sensors in standard versions can only be connected to sources with a voltage of 10-15 V.
General recommendations of installation specialists
To ensure stable signal reception, it is recommended that the sensors are correctly positioned initially. Usually, do-it-yourself installation is carried out without taking into account the orientation side of the sensitive sensor. Experts advise to direct the wide part of the rim up. By the way, the premium Sho-Me parking sensors in the Y-2616 modification include 8 large sensors with pronounced metal rings. When installing them, it is especially important to comply with this rule. Another tip concerns wiring insulation. All supply cables must not only be protected, but also located in channels that exclude contact with a metal structure or other elements of electrical equipment.
Conclusion
The technology for installing a parking radar is much more complicated than installing a rear view camera. This leads to fierce competition between these driver assistants, while in practice, sensors are more efficient. And yet, a correctly thought out arrangement of sensors and communication lines helps to install parking sensors without any problems. The price of such services in specialized workshops can vary from 5 to 10 thousand rubles. depending on the complexity of the work. For an ordinary motorist, the main problem of this operation will be the laying of cable infrastructure. Work with the on-board power supply system in itself imposes a high responsibility. However, you can choose an alternative method of wireless installation.