DE19833274C1 - Lighting monitoring for public telephone cubicles - Google Patents

Abstract

The method involves regularly checking the light intensity in the cubicle and detecting a fault based on preset values for light or dark. Faults are indicated for service personnel or signaled to a background system. The measurement circuit is activated at a predefined time at which the lighting is known to be intact. The light intensity is measured on successive days at a predefined time when the lighting should be on, and a value for light or dark is determined and stored. The measured value is compared with the stored value and a fault detected and indicated or signaled if they disagree. An Independent claim is also included for a circuit for implementing the method.

Description

The invention relates to a method and Circuit arrangement for lighting monitoring for Telephone booth according to the preamble of claim 1 or claim 5.

Illuminated telephone booths, for example the Germans Telekom AG, are generally known, as from the Device description Münz Tel 23 / BTE 6480-1 from Landis & Gyr Communication (Deutschland) GmbH emerges. they are illuminated to facilitate the use of the recognition and Improve findability of telephone booths and the To give customers more security. A control of the Functioning of the lighting is not for the operator easily possible because firstly the location to this Purpose must be sought and secondly the service staff normally works during the day when the lights are off Power saving is not turned on. At present from Deutsche Telekom AG on the market Public telephone booths are illuminated with a Light sensor regularly, generally daily, at night checked. The luminosity in the telephone booth checked and based on this and a preset Range of values for light or dark becomes a disturbance of the Illumination detected. It can then be used on the device during the day displayed to the service personnel or to a background system be reported.

The disadvantage of the known solution mentioned above is that that it is due to the variety of phone booth types that Illuminants and the installation conditions, such as Example different or no street lighting, Single or double location with further illuminated Telephone booth, is hard, a fixed range of values for to determine light or dark for all telephone booths. The  Risk of false signaling and unnecessary Service effort is great.

The range of values typical for each location can only be achieved by time-consuming trial and error can be determined.

The invention is therefore based on the object improved lighting monitoring for public To create a phone booth in which one procedure and one Circuit arrangement for determining one for each location specially tailored luminosity range among the determine specific conditions and the Control lighting monitoring.

The solution for the method according to the invention is in Characteristic of claim 1 characterized.

Further solutions or refinements of the method for The task is solved in the characteristics of Claims 2 to 4 characterized.

The solution according to the invention for a circuit arrangement which is suitable for carrying out the method is characterized in the characterizing part of claim 5 and further solutions or configurations in the Characteristics of claims 6 and 7.

The technical solution for the process and the Circuit arrangement are characterized by a simple Possibility to determine one for each location specially tailored luminosity range. Thereby, that on several consecutive days the public Phone the current luminosity at a given one Time using a measuring circuit at which the Lighting should be on, for example Midnight, is from the measured values Range of values for light or dark determined and in the  Circuit saved. From this point on, a monitoring of the Telephone booth lighting takes place automatically. in the if necessary, a fault message from the circuit triggered, for example, a background system immediately is communicated, the location, the time, and also the type of the respective telephone, for example card telephone or Payphone, can be automatically transferred with.

DE 36 01 665 A1 describes a method for loading lighting monitoring known, in which by means of a The computer corresponding to that of a new lamp Efficiency with the current efficiency is compared.

Further advantages, features and possible applications of the present invention, in particular the method and Circuit arrangement, result from the following Description in conjunction with those in the drawing illustrated embodiments.

The invention is described below with reference to the drawing illustrated embodiments described in more detail. In the description, in the claims, the Summary and in the drawing are those in the list of reference numerals given below Terms and associated reference numerals used.

In the drawings:

Fig. 1 is a basic operation or flowchart of the method according to the invention and

Fig. 2 shows a circuit arrangement for performing the method.

The basic operation or flowchart according to FIG. 1 shows the individual basic operation steps or method steps. To adjust the control of the lighting, a new measurement of the telephone booth lighting is carried out. The measurement takes place at a certain point in time n.

The values measured at this time n or the measured value will be in another Process step saved. In a next step it is determined whether a certain number (x) nights was measured.

If not, then a measurement is carried out until the required measurements have been made at certain times. If this has been done, then another one Process step the calculation of the mean and that Set the tolerance range for example for "bright" carried out. This calculation and determination takes place on x. Day. From day x + 1 it is determined whether the measured value in specified tolerance range. If so, it will Lighting accepted as fine. If not then there is a fault message. This error message can either be displayed immediately on the phone booth and / or it can be a background system automatically be communicated. This message then contains the pure fault report also the location, the type of the telephone and possibly the nature of the fault, so immediately or later appropriate steps for elimination are initiated can. It has to be mentioned that the Monitoring feature can be explicitly activated must if the respective public telephone Monitor the functioning of the telephone booth lighting should. It must be ensured that the Telephone booth lighting is intact. As already mentioned, measures the public telephone or the circuitry for this function the current luminosity on several days at a given time, to be the lighting should be switched on. Using an algorithm or a procedure is based on the measured values Range of values for light or dark determined and saved. From this point on, one can open  control or monitoring tailored to this point in time the telephone booth lighting.

In Fig. 2 is a schematic diagram of a circuit is shown for illumination monitoring for telephone booths, which is part of a public telephone located therein.

The telephone booth lighting monitoring is switched on via the activation circuit 1 . In the downstream measuring circuit 2 , the luminosity is measured at time n and written into the memory 3 . The measurement takes place in x nights. After x nights, the stored values are transferred from the storage unit to a circuit for reference value formation 4 , where the mean value is calculated, and from this the tolerance range for, for example, "bright" is determined. This tolerance range is forwarded to the comparison unit 5 and replaces the old tolerance range, if one already exists.

From the x + 1st night, the measuring circuit 2 transmits the value measured at time n directly to the comparison unit 5 . Here the measured value is compared with the tolerance range. If a deviation is ascertained, this is communicated to the fault reporting unit 6 , which displays a fault message for the service personnel or reports it to a background system in order to trigger appropriate actions.

Reference list

1

Activation circuit

2nd

Measuring circuit

3rd

Memory or storage unit

4th

Circuit for reference value formation

5

Comparison unit

6

Fault reporting unit

Claims (7)

1.Procedure for monitoring the lighting of telephone booths with public telephones, the luminosity in the telephone booth being checked regularly and a fault in the lighting being identified on the basis of the luminosity and a preset value range for light or dark, which is displayed on a device for the service staff or on Background system is reported, characterized in that
that the circuit for measuring the respective luminosity is activated or initiated at a predetermined time, it being ensured that the lighting is intact at this time,
that the current luminosity is automatically measured at a predetermined time at which the lighting is switched on for a number of (x) days thereafter with the aid of a circuit arrangement integrated in the telephone,
that in a further step a range of values for "light" or "dark" is determined and stored from the measured values,
that from this point in time a control or monitoring of the telephone booth lighting tailored to it takes place by directly comparing the value measured at this point in time with the stored value range and
that in the event of a deviation, a malfunction is detected, which is displayed as a malfunction message for the service personnel or is automatically routed to a background system in order to initiate remedial operations. 2. The method according to claim 1, characterized featured, that the location automatically when the fault is reported of the public telephone concerned, the type with the fault message together to the background system or transferred to a service center. 3. The method according to claim 1 or 2, characterized, that the measurement at a scheduled time n micro-program controlled by the in the public telephone existing measuring and activation circuit initialized or activated or remote controlled done by the background system. 4. The method according to any one of claims 1 to 3, characterized in
that the mean value calculated in a reference circuit ( 4 ) and the tolerance range determined therefrom for "light" or "dark" is determined and
that this tolerance range is transmitted to a comparison unit ( 5 ) in order to replace the tolerance range that may have been previously saved as a new one. 5. Circuit arrangement for performing the method according to one of the claims 1 to 4, characterized in that
that an activation circuit ( 1 ) switches on the lighting monitoring for the telephone booth,
that a measuring circuit measures the luminosity at a definable point in time n and forwards it to a storage unit ( 3 ) for storage,
that the values measured and stored at several points in time n are output by a circuit arrangement downstream of the memory unit ( 3 ) for reference value formation ( 4 ), which is used in particular for averaging and defines the tolerance range for a specific lighting state,
that a comparison unit ( 5 ) of the measuring circuit ( 2 ) and the circuit arrangement for reference value formation ( 4 ) is connected for the purpose of comparing the measured value with the stored tolerance range and
that the comparison unit ( 5 ) is connected to a fault reporting unit ( 6 ). 6. Circuit arrangement according to claim 5, characterized in that the fault reporting unit ( 6 ) is designed for direct fault message display for the service personnel or is connected to a background system which initiates the remedial action. 7. Circuit arrangement according to claims 5 or 6 for performing the method according to one of the claims 1 to 4, characterized in that the activation circuit ( 1 ), the measuring circuit ( 2 ), the memory unit ( 3 ), the circuit arrangement for reference value formation ( 4 ) , the comparison unit ( 5 ) and the fault reporting unit ( 6 ) are an integral part of the public telephone in a telephone booth or a corresponding cabin.