Difficulty: novice

The Parking Lot Sensor PLS with TPS110 sensor core is designed for detecting parked vehicles in parking lots.

On this page you'll find some steps and best practices from the installation highlighted; but please refer to this manual for complete installation instructions.

Preliminary questions

Make sure you know exactly what the parking lot looks like / where the sensors will be installed:

• Is it an outdoor or indoor parking lot? (this answer will influence which kind of hub needs to be installed: Indoor hub or outdoor hub (PoE, weather sealed))

• In case of outdoor:

  • Is parking lot far away from building or not? (influences where hubs need to be installed)

  • At which places can power be provided?

  • Can PoE be provided?

  • Location of poles were hubs can be mounted to

  • What does the underground look like? Gravel, stones with holes/grass in between, closed floor? (the surface intended for the installation of the sensor base should be free of any gaps or misalignment)

• In case of indoor:

  • Ceiling height

  • Construction materials: brick/(reinforced) concrete/other (specify)

  • At which places can PoE (or power and ethernet) be provided?

Prerequisites

Before installing the sensors, make sure that

• the necessary infrastructure is working properly:

  • an OUTDOOR/ruggedized LoRa gateway needs to be installed. Make sure the gateways are switched on and confirmed connecting to the Spacewell platform (see LoRa Gateways, Hubs installation guides)

  • make sure that a stable Internet connection has been established

  • ensure there is a backend connection

  • The back-end, as well as the associated management software, must be functional.

• Prepare your sensor plan (floorplan with dimensions and markings of where the sensors need to come) has been set up

• Make sure that all of the required components, as well as the tools, are ready. The sensor base will need to be attached to the substrate (e.g., concrete, asphalt). To do this, Bosch recommends a two component adhesive, eg DELO® PUR 9692 (universal 2 component polyurethane adhesive available in 50 ml and 200 ml cartridges).

Components

Open

Tools/materials

Open

1. Disposable gloves (protection against contact with adhesive)

2. Two component adhesive

3. Adhesive press (these differ, depending on the cartridge size)

4. Mixing tip

5. Tape rule

6. Sensor base

7. Sensor core (sensor)

8. T20 screw

9. Sensor cap (sensor sealing cap)

Preparation of the parking space

The parking space must be free of dirt, dust, oil, water and other contaminants. For this purpose, at least a 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 center of the parking space (intersection of the two diagonals) in order to ensure optimum sensor accuracy.

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. This is crucial for the contact surface and the adhesive effect of the sensor.

Installation of the sensor base

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; if you use a 50 ml cartridge, you can empty it completely. Apply the adhesive in the form of a bubble in the center of the sensor base (no screws or even surface).

Note that, as soon as the two components are mixed, the adhesive cures within a few minutes. (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.)

Now mount the sensor in the center of the parking space by applying light pressure on the sensor base. 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.

Installation of 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.

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.

Deploy sensors in Workplace Platform

Add New Device in Workplace back-end Studio

1. Go to your tenant (https://studio.cobundu.com ) and log in

2. Select the location, where you can manually add a sensor via "Add New Device"

Selecting the correct Device Type "Bosch PLS" should automatically set the Type to "Presence" and the Channel to “PIR” (see Advanced).

For more information on how to add multiple new devices to Studio, check out Configure devices (add, remove, import, and export).

Quality Assurance

Next step is the Quality Assurance to make sure that the whole installation and configuration of your Bosch PLS sensor was a success.

If you park a car on top of the sensor, this will trigger the sensor immediately and, in the live floorplans (for example in touchpoints Workplace web (Go) and The Workplace App), and Workplace back-end Studio’s Sensor Management, you should see values for each sensor that is linked to a location.

Remember that in Studio, you might/should also see values from the sensor heartbeat coming in. Don't mistake these for actual data (heartbeat will include the status, so might be sending 0+0+0 as values; whereas real data would be 0+1+0+1...). More information about heartbeats: How to monitor Sensor Health

Following sensor is only sending heartbeats, no detected values/data:

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