DE202019003180U1 - Device for time recording between two measuring points in a vehicle and to display this in the vehicle - Google Patents

Abstract

Device for time recording between two measuring points in a vehicle and to display this in the vehicle, characterized in that a light barrier sensor unit (1) attached to the vehicle to be measured, when passing a light barrier transmitter (3) generates a pulse, which is a display unit operated in the vehicle (2) for measurement.

Description

For rally events there is the task to drive a distance between 2 measuring points as accurately as possible in the given time. As a rule, photocells are measured to the nearest 100th of a second. To train this task is also a comparable device necessary that has light barriers characteristic and the driver immediately displays the readings.

State of the art

In a conventional light barrier, a receiver is illuminated either directly or by reflection. If the beam is interrupted, a pulse is output which can operate an electronic stopwatch. This requires at least one light barrier at the initial measuring point and at the final measuring point. For intermediate times, additional photocells are necessary. All measuring points must transmit their data via cable or via radio to a central unit which displays the time difference of the pulses and thus the transit time. If necessary, this can also be forwarded to a monitor in the vehicle. The disadvantage is that a conventional light barrier system is complex for private individuals and data can only be displayed with additional measures in the vehicle.

task

The object of the invention is to find a measuring device with light barriers characteristic and vehicle display for training purposes, which can be realized with simple means, build quickly and is sufficiently accurate.

solution

In the invention, the more complex sensor unit of the light barrier was based on a single central component ( 1 ) mounted on the vehicle, preferably in a releasable connection on the bumper. A downstream simple transmitter sends the start pulse to a mobile device, mobile phone, tablet ( 2 ) in the cockpit over a short distance. This will start or stop a stopwatch function. It is triggered by externally mounted LED / laser emitters ( 3 ), which are limited in the lateral angle. These are adjusted so that when passing the vehicle a light beam ( 4 ) falls on the sensor and gives a pulse. By placing a radiator at the beginning (3a) and at the end ( 3b) The stopwatch is started and stopped on the route.

Exemplary embodiment

In an exemplary embodiment, a light barrier sensor with a Bluetooth transmitter for mobile phones is connected so that when triggered the sensor, a radio pulse is sent, which operates similar to a mobile phone stick the volume button on the mobile phone. A stopwatch can be started and stopped sequentially with a suitable app.

The sensor ( 1 ) is placed on the front bumper with a magnetic mount so that the photosensitive element is oriented 90 ° to the right. At the roadside is a side shielded infrared LED spotlight ( 3 ) is positioned so that it is at a 90 ° angle to the sensor ( 1 ) shine.

When passing the first radiator ( 3a) The sensor is stimulated and generates a pulse for the Bluetooth transmitter. This is sent to the mobile phone ( 2 ) and starts the stopwatch in the app. When passing the second radiator ( 3b) the sensor is stimulated again and the clock is stopped on the same transmission path. For a circuit this can only be done with a spotlight. The vehicle then displays the exact time required.

For example, lap times can also be recorded during training on a race track in the vehicle.
Also, the device can also be used in cycling for example for sprint training.

advantages

The advantages of this device are the simple and inexpensive construction, since known components are used in a new arrangement. The mobile phone as a measuring and display unit should nowadays be regarded as available.

Since cell phone and sensor unit are in the vehicle, only a short radio transmission link is necessary. This can be used commercially available Bluetooth components.

All valuable components are located on or in the vehicle. Only the emitters are discontinued. Thus, training as an individual is possible and the remote components can remain unattended in the short term.

With a releasable support, e.g. Magnet or suction cup, attached and by radio transmission must be made to the vehicle or terrain no conversions. Also, no cables need to be laid. All units can be powered by battery or rechargeable battery since the power consumption is low. So the construction times remain low.

System-related measurement inaccuracies are reduced by using only one transmission line and evaluation unit.

Since each vehicle has its own receiver, the measurement section of several vehicles, one after the other, can be used simultaneously.

The display takes place directly and directly in the cockpit of the vehicle.

For additional measuring sections, only one additional transmitter has to be set up at a time.

Due to the low component costs, a cost-effective training pack for private persons and smaller clubs can be produced and distributed here.

Claims (3)

Device for time recording between two measuring points in a vehicle and to display this in the vehicle, characterized in that a light barrier sensor unit (1) attached to the vehicle to be measured, when passing a light barrier transmitter (3) generates a pulse, which is a display unit operated in the vehicle (2) for measurement. Device after Claim 1 , characterized in that the evaluation and display with a mobile phone or tablet via radio, for example Bluetooth is done. Device after Claim 1 , characterized in that transmitter and receiver are provided with releasable holders, such as magnet or suction cup.

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