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Parking Lot Sensor - User Manual

Monitor the parking lot with advanced Bosch parking sensor and visualise it on the ALSO IoT Platform

Content:

  1. Introduction
  2. Installation procedure
    1. Installing the sensor base
    2. Parking space preparation
    3. Sensor base installation
    4. Installing the sensor
    5. Replacing/removing the sensor
  3. Installation video tutorial
  4. Activating Bosch PLS in the ALSO IoT Platform

Introduction

The Parking Lot Sensor (PLS) with TPS110 sensor core is designed for detecting parked vehicles in parking lots. This user manual is valid for the Parking Lot Sensor PLS with TPS110 sensor core by BCDS.

Official Bosch documentation!

This tutorial is a shortened version of the full User Manual provided by Bosch. To check out the full installation document, please go here

To check out all documents related to the Bosch Parking Lot Sensor, you can go to the manufacturer's official website


Installation procedure

Before installing the sensors, make sure that the necessary infrastructure is working properly :

  • The LoRa Gateway is switched on, and a stable Internet connection has been established, and that there is a backend connection.
  • All of the required components (see image below), as well as the tools, are ready.

1.  Installing the sensor base

The sensor base is attached to the substrate (e.g. concrete, asphalt). To do this, a two-component adhesive is recommended. We have already had good experience with the following adhesive: DELO®-PUR 9692  (universal 2-component polyurethane adhesive available in 50 ml and 200 ml cartridges). We recommend attaching several sensor bases first and only then installing the sensors.

For installing the Bosch PLS,  the following material is recommended:

    • Disposable gloves (protection against contact with adhesive)
    • Two-component adhesive (e.g. DELO®-PUR 9692)
    • Adhesive press (these differ, depending on the cartridge size)
    • Mixing tip
    • Tape rule
    • Sensor base
    • Sensor core (sensor)
    • T20 screw
    • Sensor cap (sensor sealing cap)

2.  Parking space preparation

The parking space must be free of dirt, dust, oil, water and other contaminants. For this purpose, at least one swept area should be prepared. However, it is recommended to clean the surface to  remove contamination using a high pressure cleaner and a burner. The installation must take place in the centre of the parking space (intersection of the two diagonals, see the image below) in order to ensure optimum sensor accuracy.

TIP: For the bonding procedure, please follow the instructions of the adhesive manufacturer (e.g. temperature, safety information and work instructions). A parking space cleaning should be clarified in advance with the parking lot operator so that the
treatment does not result in removal of existing coatings.

To provide the adhesive with a closed substrate, the surface intended for the installation of the sensor base should be free of any gaps or misalignment (see the image below). This is crucial for the contact surface and the adhesive effect of the sensor.

3. Sensor Base installation

Insert the adhesive cartridge into the glue gun/adhesive press (Fig. 7 Inserting the adhesive cartridge; in the case of DELO®-PUR 9692, the mixing ratio is 1:1, so you do not have to pay attention to the orientation of the cartridge). Then attach the mixing tip on the cartridge by removing the cartridge cap (Fig. 8 Sealing cap adhesive cartridge) and attaching the mixing tube (Fig. 9 Mixing tube on adhesive cartridge; here, bayonet fitting).

To avoid contamination and to get the maximum use out of the plasma cleaning process, open the sensor base package just before applying the adhesive. In the case of DELO® PUR 9692, you apply about 40 ml of the adhesive in the middle (see the image below);. If you use a 50 ml cartridge, you can empty it completely. Apply the adhesive in the form of a bubble in the centre of the sensor base (no screws or even surface).

The bottom of the base adhesion on the ground should be processed as follows:

  • Take out the base of the sensor only just before putting down the glue there.
  • Do not touch the bottom side of the base with your hands or anything else.
  • Do not put the base on the ground before gluing, to avoid dust on the sensor base.
  • Ensure that all parts of the sensor device will be protected and will be kept clean till the installation has been completed, so that these parts will be used only within the described intended use.
  • Check that the glue is compatible with the ground and the base of the sensor.

Once the adhesive in the mixing tube has cured, it cannot be used again. At room temperature, a
typical processing time for the adhesive is about 5 minutes

To ensure a safe installation:

  • Install the PLS core (black part) only once into the PLS base (grey part) on the final installation
    position (parking lot),
  • Do not bring a magnet near the PLS (this would power the device),
  • Install the PLS core properly into the PLS base,
  • Avoid to uninstall and reinstall the PLS core after the initial installation into the PLS base,
  • Do not open the sensor core.

Now you can mount the sensor in the centre of the parking space by applying light pressure on the sensor base (see the image below). Make sure that the sensor is centered in the parking space and that the Bosch logo on the sensor base points towards the access road. Subsequent twisting of the
sensor base is not possible.

Allow the two-component adhesive > 12 h to cure (hand-tight at room temperature after 30 min) before you screw in the sensor. Keep the parking space closed off until the sensor is installed to prevent damage (such as breaking the dome) to the sensor base.

4. Installing the sensor

The sensor can be screwed into the base after the adhesive has cured. To simplify insertion, the arrow on the bottom of the sensor points towards the Bosch logo (see the image below). After inserting the sensor, it will take approx. 2 minutes until the first measurements are carried out. During this time, the sensor should be completely screwed in to ensure optimum teaching of the sensor. To tighten it, use the T20 screw and a T20 screwdriver and tightening torque with at least 1.4 Nm up to a maximum of 1.8 Nm. And then close the opening with the sensor sealing cap.

After the installation of the sensor, the sensor learns about parking changes, which happens in its vicinity.  After approx. 10 parking changes, the sensor is in its taught-in state.

Information: During operation, a continuous automatic calibration of the parking lot sensor takes place through "parking" and "exiting parking space'' events.

5. Replacing / removing the parking sensor

During operation, a continuous automatic calibration of the parking lot sensor takes place through "parking" and "exiting parking space'' events.

A battery replacement is not intended; instead, the sensor must be replaced.

To completely remove the sensor base from the parking space, it is necessary to use a hammer and chisel to destroy the adhesive effect by chiselling the sensor base parallel to the parking space surface. As a result, there is no permanent damage to the parking space.


Installation video Tutorial

Learn how to easily install the Parking Lot Sensor

Activating Bosch PLS in the ALSO IoT Platform

Now, when your Parking Lot Sensor is successfully placed on the parking lot, you need to activate it on your ALSO IoT Platform, within a Ground.  

  1. Go to the ALSO IoT Platform and enter your Ground,
  2. Click on the + NEW DEVICE button at the upper right,
  3. Enter the activation code you got with the Bosch PLS and click FIND,
  4. That's it! Now your parking sensor is activated in your Ground.

The data from Bosch PLS should be arriving in a couple of minutes.

For your convenience, we created a video tutorial below so you can set up the parking sensor, create an amazing Pinboard and get all the benefits of this solution in the shortest time possible.

ALSO IoT Platform tutorial

CAUTION: This sensor is not designed for use in life-sustaining applications, safety-critical applications or applications for which a malfunction could lead to bodily harm, death or severe property damage. Only use the Parking Lot Sensor with components approved by BCDS.