JPH0392057A - Remote unlock device for gatedoor - Google Patents

Abstract

PURPOSE:To reduce the cost of wiring installation by providing a telephone set for exclusive use of abbreviation dialing installed to an outside of a gatedoor and a controller operated in response to a call signal coming to the telephone set. CONSTITUTION:A room number of each living room and each telephone number are respectively stored in a memory 13. When a visitor lifts up a handset of a telephone set 1, enters a room number desired to be visited by an enter key 12 and an input end key 15 indicated as 'No' is depressed, a control circuit 11 sends a dial signal to a telephone line L. On the other hand, a room receiving a call confirms a visitor and a telephone set of the room is used to send a telephone number of the telephone set 1 of a gatedoor at an abbreviation dial. A call signal passing through a band pass filter 21 is continuous for a prescribed time, then an output is caused from an integration circuit 22, a flip-flop circuit 23 is set via an OR circuit 26 to generate an output thereby operating an unlock device 24. Thus, simple installation is attained without much cost and labor of wiring installation.

Description

DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) This invention relates to a remote unlocking device for the entrance door of a housing complex such as an apartment. (Conventional technique si) In apartment buildings such as condominiums, a remote door unlocking device is installed at the entrance to ensure the security of each resident. This remote unlocking device for the entrance door uses an intercom etc. to confirm the presence of visitors at the entrance, and then each resident can either remotely control the entrance door from their room, or the resident can unlock the entrance door themselves. However, they are arranged to unlock the front door using the door key before entering. (Problem A to be Solved by the Invention) It is easy to install such a conventional remote door unlocking device in a newly built apartment complex, but if you try to install it in an existing apartment complex, it will require wiring. There were problems in that the wiring was exposed on the wall, making it unsightly, and the cost of wiring work increased significantly. (Means for solving the problem) Each room in an existing apartment complex is usually equipped with a telephone, so if you enter the room number on the outside of the entrance door, the telephone installed in that room will be displayed. A special telephone set will be installed specifically for making so-called speed dial calls. On the other hand, in each room that received the call, after confirming the visitor who came to the front door, the phone in each room uses speed dial to call the phone installed at the front door and sends a ringing signal. It was designed as if to unlock the front door. (Embodiment) The remote unlocking device for an entrance door of the present invention includes a special telephone installed at the entrance, a control device that operates based on a call signal that arrives at the telephone, and a control device that is driven by the control device. It is equipped with a solenoid-like unlocking device that unlocks the front door when the door is opened. The special telephone set installed at the entrance consists of a telephone set 1 connected to a telephone line L and an automatic dialing device 311G connected in parallel, as shown in Fig. F. Automatic dialing system! ! tlO consists of a control circuit 11 composed of a microprocessor or the like, an input key 12 for inputting data such as the room number to be memorized and the telephone number of the corresponding room, and an input end key labeled r1! 5 and
A memory 13 that stores telephone number data, etc., a record key 14 that puts this memo I river 3 into a memorized state, and a dial signal generator 1B that sends out audio frequencies or impulses in response to dial signals from the control circuit 1l. The input key 12 and the input end key 15 are attached to the panel surface of the automatic dialing device 10, but the other record key 14 is attached so that it cannot be operated from the panel surface. A display 17 is connected to the control circuit 11, and this display 17 receives a signal from the control circuit 1l and displays the room number. The control device 2, which operates based on the ringing signal that arrives at the telephone 1, operates in a band that passes the signal of the ringing signal frequency.
A pass filter 21, an integrating circuit 22 that generates an output when the output of the filter 2l continues for a certain period of time, and a flip-flop circuit 23 that is set by the output of the integrating circuit 22 that has passed through the OR circuit 2B. , an unlocking device 3124 that is activated by the output of the clip flop circuit 23, and a timer circuit that starts its operation with the output of the flip flop circuit 23 and generates an output after a certain period of time to reset the clip flop circuit 23. It is equipped with 25. Furthermore, a key switch 27 is provided on the panel surface, which is operated by the resident's room key.
The output of this key switch 27 is led to the set terminal of the flip-flop circuit 23 via an OR circuit 28. Furthermore, a recording device 19 is provided to record the room number and duration of the call, in order to make each resident pay the cost of the call. This recording device l8 is a DC polarity reversal pulse for billing (pulse used for billing of public telephones)
This system records the room number when a room is detected. (Operation) After pressing the record ● key 14 to enter the memory state, inputting the room number using the input key 12 of the automatic dialing device 10 selects an appropriate storage area, and then the telephone number data of the room entered is stored in the memory 13. is stored in the above storage area. By repeating such operations, the room numbers and telephone numbers of each room in the apartment complex are stored in the memory 13. In the normal standby state, the flip flop circuit 2
3 is in the reset state and is not generating any output, so the door is in the locked state. If the resident attempts to enter the room himself/herself, he or she may use the key to the room door that the resident owns.
When key ◆ switch 27 is operated, key ◆ switch 27
The output generated by this is applied to the set terminal of the flip-flop circuit 23 via the OR circuit 2B, and the flip-flop circuit 23 is set to the set state, so an output is generated.
Activate unlocking device N24 to allow entry. However, if the user does not enter within a certain period of time, the timer circuit 25 operates and returns the flip-flop circuit 23 to the reset state, making it impossible to enter from now on. When a visitor without a key comes to the front door, the visitor picks up the handset of telephone 1 and enters the room number he wishes to visit using input key 12. When the key l5 is pressed, the control circuit 1l changes to the memory 13.
The telephone number of the room is read out, the dial signal generator l8 is activated, and a dial signal is sent onto the telephone line L. On the other hand, in the room where the visitor is being visited, the telephone will ring and the call will be received, so by answering the call, you can confirm the visitor and
After putting down the handset and ending the call, use the speed dial from the telephone in your room to send the telephone number of the telephone in the entrance. At this time, since the telephone installed at the entrance receives the calling signal, the band pass filter 21
When this calling signal that has passed through the ? This allows visitors to enter. (Other Embodiments) In the embodiment described above, the keys operated by the visitor on the telephone installed at the entrance are the input key 12 and the input end key 15, which require multiple touches. However, in the case of an apartment complex with a small number of rooms, as shown in Fig. 2, there is an input key 12 for inputting data such as the room number to be memorized and the telephone number of that room, and data such as telephone number data. In addition to the memo January 3 to memorize and the record key 14 that puts this memory 13 into the memorized state, it is possible to provide the same number of function keys 18 as the number of rooms to send a dial signal with a single touch. be. To memorize the telephone number of each room, after setting the memory 13 to a memorizable state by operating the record key 14, the appropriate storage area is selected by pressing one of the function keys 18. Thereafter, the telephone number data of the corresponding room input using the input key 12 is stored in the above-mentioned area of the memory 13. When a visitor calls a desired room, the function corresponding to that room is called. By simply operating the telephone key 1B, the telephone number data stored in the designated storage area is output from the memory 13 to the control circuit 11, and based on this telephone number data, the control circuit 11 outputs the dial signal generator 1B.
, and sends a dial signal onto the telephone line L. Note that the keys 12, 14, and 15 other than the function key 18 corresponding to the living room are installed so that they cannot be operated on the panel surface. (Effects of the Invention) As explained above, according to the remote door unlocking device of the present invention, it can be easily installed even in existing housing complexes such as condominiums without requiring the cost or labor of wiring work. can do. Furthermore, the number entered from the automatic dialing device is not a telephone number but the room number, and the number entered from the room side is a speed dial number, so the actual telephone number will not be known to others.

[Brief explanation of drawings]

Fig. 1 is a block diagram showing one embodiment of a remote unlocking device for an entrance door according to the present invention, and Fig. 2 is a block diagram showing another embodiment. It is expressed as . 1... Telephone 10... Automatic dialing device l1... Control circuit 12... Input key l3... Memory 14... Record ● key l5... Input end key 16... Dial signal Generator 18...Function●Key 2...Control device 23...Flip●Flop circuit 24...Unlocking device 27...Key●Twitch

Claims (2)

[Claims] (1) A telephone set exclusively for making speed dial calls installed outside the entrance door of an apartment building such as an apartment building, a locking device installed on the door, and a telephone set that responds to a call signal that arrives at the above-mentioned telephone set. 1. A remote door unlocking device for an entrance door, comprising: a control device that is activated by the door; and the control device unlocks the door locking device. (2) Remote unlocking of the entrance door as set forth in claim 1, characterized in that the speed dial of a telephone dedicated to making speed dial calls is set to correspond to the telephone number installed in each room. Device.