DE3400157A1 - Automatic door announcement system - Google Patents

Abstract

Automatic door announcement system for intercom systems (1) on house and apartment doors, comprising an electronic switching system (2) by means of which conventional cassette recorders (3+8) can be used to play an announcement text, since the recorder is switched on by pressing a bell button (4) and is automatically switched off at a specific position on the tape. <IMAGE>

Description

DESCRIPTION

The invention relates to switching electronics, by means of the commercially available Cassette recorder etc. as an automatically functioning signaling system for the door intercom systems can be used at house and apartment entrances.

The purpose of the invention is that visitors - those with A b - are present of the house or apartment owner ring the doorbell, on the one hand informed about it be that the house or apartment owner is not present - on the other hand about when he will be back or where he can be reached, for example, if necessary. Above the system can individually record a text recorded by the apartment owner Wording can be played, e.g. also the information that he is currently at all don't want to be disturbed.

The text of the message cassette can also be written in such a way that the visitor is asked to report himself by his name first and indicate what the reason for his visit is.

The present apartment owner can then use the intercom system hear who the visitor is - what they have to say and can still decide whether he opens the door or leaves the visitor in the dark about whether he is at home is or not.

It is known that so-called intercom systems are installed on house and apartment doors used to address a visitor before opening the door for them.

The disadvantage of these conventional house intercom systems is the fact that at the sound of the apartment owner you first open up the dialogue and have to ask personally who it is. It is through this personal action that one gives but inevitably reveals that one is present. But if one is a b -present, Of course, no one answers the doorbell, so a visitor with unfair Intentions from it already once sufficiently useful for his project Can draw conclusions (break-in, etc.).

The invention is thus primarily based on the task of automatically attracting visitors to ask to identify yourself first and the reason for your visit to indicate before entering into a dialogue with them or before giving them the Door opens.

The apartment owner can decide whether he wants to invite the visitor to the Leaves unclear about his presence or whether he opens the door for him.

Another object of the invention is to put every visitor first basically to leave it in the dark whether the apartment owner is present or not.

Another object of the invention is that you get visitors who you expected, can inform that he should wait a few minutes, for example, because you are currently prevented from working for a short time (morning toilet, housework etc. etc.) which cannot be interrupted or cannot be postponed.

It is also part of the object of the invention that a visitor is absent of the apartment owner can also leave a spoken message that the The apartment owner will be informed of the visit after their return.

According to the invention, this object is achieved in that a special Switching electronics (2) a message text cassette player by pressing the bell button (4) (3) puts into operation.

By pressing the bell button, a relay (5) creates an electrical circuit closed, which activates the drive motor of the message text cassette player (3). By means of the text stored on the tape, the visitor is now revealed to be an identity prompted and / or informed. After this text has expired, switches the message text device automatically logs off, due to the fact that a second relay, which is inserted via a metal switching film (10) on the tape and the Short-circuits the circuit via 2 switch pins (11), the current flow to the drive motor of the playback device is interrupted.

The length of the tape of the message text cassette is such that how this corresponds to the individually desired or practice-oriented operating time. As a rule, these are running times of 30/60/90 seconds or more. Whether as an endless cassette or as a rewinding normal cassette; the tape runs to the city center through the Press the bell button only up to 4 digits, where the metal switch foil is pulled over both switch pins (11).

As soon as the switching foil bridges both switching pins, the circuit is of the connected relay is interrupted and the belt stops at this point.

When the bell button is pressed again, the first relay becomes the Switching electronics closed again and the drive motor started and the The process is repeated.

So now with the presence of the apartment owner by the visitor Even information on tape can be spoken, is sent to the switching electronics Another sound carrier device (cassette recorder, reel tape recorder, etc.) m i t Sound recording device connected. According to the selected message text the visitor is informed that he has received a message - about the House intercom - can record on tape.

As with the well-known telephone answering machines you have the advantageous opportunity to find out whether someone is at the The door to the house or apartment while not at home.

Even if it is also conceivable that once a visitor does not notice the Tape has spoken, but you can see it on the tape being played or on the recorder counter find out whether anyone was there and rang the bell.

It is also advantageous that you have brief information in the sense of: "Come please follow up, we already went ahead ", or" please get me at 6:22 pm at the main station from platform 11 ", or" We'll be back at 8:00 p.m. ", right up to the information that "Please hand in the package to the neighbor who will pay the amount becomes ", no longer as usual, by means of a written note on the door of the apartment or must be attached to the doorbell and the information must be attached to everyone for whom the information was not intended, but which they inevitably became aware of took just because they happened to pass by there. As you know, make an opportunity thieves too.

Without a visible message, you have to ring the doorbell at least once, that is, one has to put a preconceived intention into action and be active in a targeted manner otherwise the stored information will not be obtained.

Another big advantage is the fact that you can get through this system is especially valuable when it is present in the apartment draws, to the effect that every visitor automatically through the text of the message cassette - which the visitor triggers himself by pressing the doorbell button - prompted will first of all to report by his name and explain what the reason is of his visit is.

The apartment owner can hear what is being said through the intercom system The visitor has to say and can still decide at will whether he the door opens or not.

There are no longer any of the well-known situations where one can find oneself asks, "Who is ringing the doorbell", "who might that be?" This aspect is thus at the same time an - intentionally - great uncertainty factor for visitors with unfair Intentions.

Be it pushy peddlers, trick sellers or the vanguard from burglars etc .; they are all left in the dark as to whether someone is at home or not. Since you cannot rule out the possibility that someone will be at home after all is - just does not want to reveal this - he will do his dishonest plan a lot give up faster or

don't even want to try here.

Thus, the system is of great importance as a burglar protection with a deterrent effect too. Since this system is also more conventional with alarm systems Design can be coupled, the effectiveness can still be in this direction intensify.

Another advantage is that you have several different message text cassettes can be exchanged with a handle and thus the system to the respective requirements can customize. The arbitrarily different texts - up to the dog barking - enable practical use.

The system also has a special aspect in the commercial sector from freelancers to - e.g. from architects, tax consultants, doctors, lawyers etc. etc. - who can use it to inform their clients as required without they stood at the door for nothing and had to turn away in frustration. Just Freelancers who mostly do their business work alone can benefit from participate in this facility. This allows a meeting to be held undisturbed and the visitor who rings the doorbell finds out that he is from a certain time welcome, etc. etc.

Even with important business calls that don't end abruptly just because the doorbell rings, the system can do a good job; eg with a text cassette "Please wait, I'm on the phone". Every visitor will then know that someone is home and wait for it to open.

Ultimately, the key advantage is that here - in contrast to the telephone answering machines, which are technically much more complex and are therefore expensive and also have to be approved by the PTZ in Darmstadt as well as a connection and monthly fee, so simple, low-price Cassette recorders can be used, which are usually already in the melsten Households exist and the no further modification (!) In connection used with the described switching electronics and the special message text cassette can be.

FIGURE 1 shows an intercom system of the usual type, as used on house and apartment doors is used.

FIGURE 2 shows the switching electronics with the two relays (5), the Control loudspeaker, the connection devices (7) for the sound carrier devices, Operating switch (7a) and the integrated power supply (7b).

FIGURE 3 shows the message text playback device, shown here as eleven Cassette player (so-called "Walkman") without sound recording Te1, which is already for less than DM 30 are available in stores.

FIGURE 4 shows the sound recording device on which the visitors in turn can speak a message; shown here as a commercially available cassette recorder with a sound recording part, which is already available in stores for less than DM 70 are.

FIG. 5 shows the message text cassette in a top view from the outside.

The two switch pins (11) and the switch foil are clearly indicated (10) FIG. 6 shows the message text cassette with the top view of above, with shown openwork housing, which the function of the switching membrane in connection with the switching pins as a short-circuiting or bridging element, shows.

The connection cable, which goes through the jack plug, can also be seen is connected to the switching electronics (2).

FIG. 7 shows the front area of the message text cassette seen from the outside in partial enlargement. You can also see the connection of the cable (13), which connects the switching pins to the relays of the switching electronics, as well as the normal recordable sound carrier tape (12) and the metal switching foil (10).

FIG. 8 shows, like FIG. 7, the front area of the message text cassette, but here with a partially broken case.

Above all, you can see how the metal switch film (10) the two switch pins (11) bridged and thus a galvanically conductive connection manufactures.

Here the circuit of the relay (5) in the switching electronics is interrupted, so that the player leaves the cassette in this position in the rest position, until the second circuit of the second relay is closed by pressing the bell button and the belt starts up.

- Empty box -

Claims (13)

PATENT CLAIMS Automatic door alarm system, characterized in that that to the house or apartment door intercom (1) etc., of house and apartment entrances etc., both on single and multiple intercom systems, by single-family or Multi-family houses etc. a switching electronics (2) of the function described below is connected, which is connected to at least one sound carrier device (3), that is put into operation controlled by the switching electronics around a message text cassette to play with a recorded message as soon as the corresponding bell button is pressed is operated on the house or apartment door. 2. Switching electronics according to claim 1, consisting of a housing With integrated relay (5), control loudspeaker (6), amplifier, connection devices (7) in the form of sockets and plugs, function switches and lights (7a) as well an integrated power supply (7b) for the connectable sound carrier devices, characterized in that the switching electronics (2) have the function of the automatic Door alarm system controls by means of two modular circuits to which the drive motor of the message text sound carrier device (3) is connected and the two in the switching electronics Integrated relays (5) alternate between the operating and resting phases of the message text sound carrier device control, depending on which relay, by the bell button (4) or by the metal foil (10) of the message text cassette is actuated. 3. Automatic door alarm system according to claim 1 and 2, characterized in that that the sound carrier device (3) for playing the message text cassette (9) from a Technically simple cassette player of conventional design - without sound recording device -consists. 4. Automatic door alarm system according to claims 1-3, characterized in that that the sound carrier device (3) for playing the message text cassette (9) from a Cassette player with automatic track reversal device (so-called "auto reverse function") is equipped. 5. Automatic door alarm system according to claims 1-4, characterized in that that the sound carrier device can play the message text cassette from a cassette recorder conventional type with sound recording device. 6. Automatic door alarm system according to claims 1-5, characterized in that that another sound carrier device with sound recording device (8) - like Cassentten recorder, reel tape recorder, etc., for recording verbal visitor messages , is connected to the switching electronics. 7. Automatic door alarm system according to claims 1-6, characterized in that that the message text cassette (9) consists of an endless cassette in its endless tape a metal, galvanically conductive switching foil (10) of a certain length is used is. 8. Automatic door alarm system according to claims 1-7, characterized in that that the message text cassette (9) consists of a normal cassette that is rewinding and rewinding (Short-term cassette) with a metal, Galvanically conductive switching foil of a certain length is combined. 9. Automatic door alarm system according to claims 1-8, characterized in that that the message text cassette (9) with two electrically conductive switch pins (11) is equipped, which are arranged in the area of the belt run-off or circulation, that the metal switching foil partially attached to the sound tape material (12) (10) bridged both switch pins when playing the cassette (FIGURE No. 8) and thus the circuit of the connected relay (5) can close or open. 10. Automatic door alarm system according to claims 1-9, characterized in that that the two switch pins (11) of the message text cassette (9) are galvanically connected by cable (13) etc. are connected to the switching electronics (2) e.g. by plug connections etc., so that the switching impulse is transmitted from the switching foil to the associated relay can. 11. Automatic door alarm system according to claims 1-10, characterized in that that the connecting cable (13) is permanently attached to the two switch pins (11) eg by soldering etc. is attached and part of the cable is in or on the Cassette is laid (FIGURE No. 6 + 7) and that a jack plug at the end of the cable (14) etc. is attached. 12. Automatic door alarm system according to claim 1-11, characterized in that that the two switch pins (11) by means of pushbutton contacts, which in turn are on the or in the player and when the message text cassette is inserted with the Switching pins coming into contact, galvanically connected to the switching electronics are. 13. Switching electronics according to claim 2 pp, characterized in that the housing of which is designed so that the message text player can be inserted into the housing can be integrated, e.g. by inserting, etc., with which a galvanic Connection of all necessary connections is achieved (so-called "module technology).