ES2302430B2 - Modular system for wireless electronic porter. - Google Patents

Modular system for wireless electronic porter. Download PDF


Publication number
ES2302430B2 ES200601172A ES200601172A ES2302430B2 ES 2302430 B2 ES2302430 B2 ES 2302430B2 ES 200601172 A ES200601172 A ES 200601172A ES 200601172 A ES200601172 A ES 200601172A ES 2302430 B2 ES2302430 B2 ES 2302430B2
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ES2302430A1 (en
Jose Carlos Del Toro Lasanta
Javier Macias Sanchez
Francisco Sandoval Hernandez
Cristina Urdiales Garcia
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Universidad de Malaga
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    • H04M11/00Telephonic communication systems adapted for combination with other electrical systems
    • H04M11/02Telephonic communication systems adapted for combination with other electrical systems with bell or annunciator systems
    • H04M11/025Door telephones
    • H04N7/00Television systems
    • H04N7/18Closed circuit television systems, i.e. systems in which the signal is not broadcast
    • H04N7/183Closed circuit television systems, i.e. systems in which the signal is not broadcast for receiving images from a single remote source
    • H04N7/186Video door telephones


Modular system for wireless electronic intercom. The present invention allows the use of one or several mobile phones (2) equipped with Bluetooth wireless connectivity, Zigbee or other standard technology such as wireless electronic door intercom terminal. The invention is added to a goal net (9) and to a fixed electronic gatekeeper terminal (10). It includes a module for electronic door entry terminal (1) that incorporates wireless connectivity, voicemail answering machine and presence simulation function, an optional wireless bridge / repeater device (3) and the communication procedure with one or more wireless devices , preferably mobile phones (2), which serve to implement the user interface. The system has the ability to redirect calls to the doorman to an external telephone (4) by wireless transmission to a mobile telephone (6) connected to the mobile telephone network (7).


Modular system for electronic intercom wireless

Technical sector

The present invention falls within the sector Wireless communications technician. In parallel, the invention is related to devices developed for regulate access to offices, homes and the like (ie. porters automatic).

State of the art

The invention provides a series of improvements and added functions of great utility to the systems of audio-goal and video-goal, being also incorporated into existing goal networks such as an addition, taking advantage of all the previous infrastructure.

Currently almost all of the homes are equipped with a system of audio-goal or video-goal electronics. However, despite there being several inventions that they deal with the use and implementation of wireless terminals to the electronic door entry application, its use has not been extended, since be it for the cost involved, for the limited functionality that provide or by the need to replace one or more equipment of the goal system.

The terminals of the goal systems Traditional have three functions: doorbell, communication with the Street sign and open door. There is no background on a Bluetooth or ZigBee wireless module added to intercom for the use of the mobile phone as a user interface and with Answering machine, voicemail and simulation function presence.

There are a number of inventions that deal with about some improvements to the basic goal service.

Document ES270915 is about a goalkeeper electronic operated by telephone line. It consists of using the network Inside user telephone and home phones as infrastructure to replace the electronic doorphone terminal. Said utility model does not contemplate the possibility of redirecting calls to telephone terminals outside the home.

Document DE19739393 refers to a doorman conventional analog wireless while the document DE19739392 is about a wireless intercom based on DECT digital communications technology. The DECT, however, It is a licensed band, unlike Bluetooth or ZigBee. In addition, DECT is not compatible with current mobiles, so Applications could be developed on it.

Document ES2126532 refers to a system intercom via telephone line that does allow redirect calls to external phones to the home, although said function or said call forwarding implies the cost of a typical phone call, expense that is not contemplated with the use of the wireless technologies contemplated herein invention.

Document ES2133125 describes a analog wireless video intercom with connection to the telephone network and similar limitations as the document previously cited in regards to the redirection of communications outside the home or similar.

Document ES2170682 deals with a network of video-porter with transmission capacity wireless and storage of audiovisual information as well as Remote location modules and home automation control. But nevertheless, deals with radio or infrared technology. While the infrared would be limited to the interior of the house and have a short range, the proposed radio technology does not guarantee compatibility with current mobiles, so they would be necessary special terminals or adhesion to specific services of telephony instead of a simple application in the terminal mobile.

Document GB2377582 is about a goalkeeper electronic with built-in mobile phone to redirect calls to a preprogrammed phone number. He redirection is done by conventional call and not See free connections via Bluetooth or ZigBee on the scope of technology

Document ES2195745 discloses a doorman Wireless electronic with wireless digital voice communication and image between a street sign, a base for each dwelling and wireless terminals The base of the house allows the connection with the telephone network to receive calls in the terminal mobile or to redirect calls to the doorman to a phone external. However, it is necessary to replace the technology available instead of using a simple device attachable to the user's terminal, as well as changing the street sign. Also, always use the telephone network, while the proposed invention avoids the use of this network in whether there is an authorized mobile terminal within the reach of the network Free wireless set.

Regarding the use of the technologies of Bluetooth or ZigBee communications for access to information or device control there are the following antecedents that, no However, they do not apply the aforementioned technology to the object here contemplated An example is document DE 10222408, which describes a remote control of an external device via Bluetooth Home automation oriented. Another example, the document CN1449629 describing a multimedia access system through a mobile terminal, a Bluetooth wireless network converter to network wired and a gateway to the Internet.

The current electronic doorman has as inconvenient the need to have to go several times until the fixed location of the home where the terminal is located doorman to meet the arrival of a visitor. The possibility of to be able to speak from any room of the house within the wireless range of the module for the fixed terminal of electronic intercom set forth in the present invention constitutes great comfort, similar to that proportionally extended wireless fixed telephone terminals. The comparative advantage provided in this document is that the user uses his phone mobile with Bluetooth, ZigBee or other wireless technology like wireless terminal of the goal system, without needing Equip with a new design wireless mobile terminal owner. Current mobile phones are equipped with means to implement a high quality user interface by programming an application, and also usually incorporate wireless communication capability with technology Bluetooth, with which voice, data and images can be transmitted. He use of the resources and capabilities of an appliance so greatly extended it constitutes cost savings and a great user comfort, avoiding the need to transport I get a new terminal. You can also use others wireless devices as a user interface in addition to a mobile phone, such as a PDA, a laptop or any another Bluetooth device or equipped with another technology Wireless with audio intercom capability.

Traditional doorman terminals do not have the ability to store and / or notify the call event in the case of non-presence of the tenant of the house. It may happen that the arrival of a person with great interest is waiting and this prevent the tenant from absent at any time from his home. This problem is solved by incorporating the goalkeeper of the Answering machine function with voicemail, which allows record a generic or personalized voice message for the visit what is waiting, as well as that visit can leave a Voice message in which to identify and communicate briefly. He intercom terminal can be configured to go from normal mode to answering machine mode with voicemail at detect in your wireless coverage area any phone Tenant's mobile. This same equipment detection Bluetooth or ZigBee discharged into the system is used to notify users on the screen and by acoustic warning the existence of accumulated messages when arriving at the house.

In short, the use of the popular mobile phones as wireless terminals of electronic intercom, avoiding the user the inconvenience of carrying I get other added equipment, as well as its cost and maintenance associated. As a result, a series of Very useful functions in a mobile phone terminal.

Detailed description of the invention

The present invention introduces a solution new to an application that has not been satisfactorily resolved At the same time being, at the same time, very economical. The user of this invention achieves a series of advanced functions, a total mobility throughout the wireless coverage area for communicate or manage the system, the possibility of using the mobile As a fixed telephone wireless terminal, the ability to redirect calls to the doorman to an external telephone to through the landline or mobile network and all at a cost and minimum difficulty for the user, since the invention is based on the leveraging your mobile phone with Bluetooth, ZigBee or other wireless technology

The electronic intercom terminal described It can be a complete equipment compatible with the entrance panel pre-existing and be mounted in new buildings or as a replacement for traditional electronic gatekeepers or, in change, you can take advantage of the electronic intercom terminal Traditional pre-existing and mounted as a wireless module added to the existing infrastructure, so that it is achieved all the functionality of the invention with considerable savings, because it is not necessary to include a microphone, speaker, push button or housings In both cases the result is the same, you get a Wireless enhanced electronic intercom terminal.

The traditional terminal functions of electronic doorman are doorbell doorman, establish communication audio with the caller and open the (s) building door (s). In the wireless module for intercom terminal (1) the functions of answering machine with voicemail, presence simulation and wireless communication with the user's mobile phone or The wireless bridge / repeater device.

The optional wireless bridge / repeater device (3) whose function is to add the ability to redirect a call to the electronic door phone to landlines in the house or to an outside telephone by connecting to the fixed telephone network that equips. In addition the wireless bridge / repeater device serves to extend the wireless coverage of the doorphone terminal electronic, allowing communication between the terminal of the intercom and the user's mobile phone to older distance. The wireless bridge / repeater device also serves to provide the mobile phone with the wireless terminal function of fixed telephony.

The answering machine function with mailbox Voice is very useful both to know who already called and for what, as well as to avoid the loss of time associated with attending Brand new unwanted. It is possible to activate the welcome message answering machine even if the user is in your housing, asking that the new person identify himself and leave his message. In case you want to attend to that person you can pick up, inhibiting answering function automatically.

The presence simulation function allows simulate the answer of the doorman by the tenant of the house to avoid evidence of absence from possible thieves. The thieves often probe homes looking for absences extended tenants, for example, a summer vacation, thus ensuring an easy theft. The homes that show Obvious signs of being empty are the priority objective of this assault class In the described invention it is possible to record a series of messages that simulate a brief reply and that play when receiving a call while the doorman is set to the presence simulation mode to hang up after a few seconds. These are usual answers when picking up in the goal applications, pronounced by several subjects and that can be prerecorded or recorded personally by users

On the mobile phone with Bluetooth or Zigbee user (2) runs a code that implements all functions traditional electronic intercom terminal and also the Listening to stored voice messages, recording messages for the answering machine and simulation of presence, management of system functions, the function of fixed telephone wireless terminal and redirection of a call to an outside telephone through the telephone network mobile.

From the mobile phone the user can set the operating mode you want: normal, normal with the muted fixed intercom terminal, answering machine or presence simulation; you can also select that the system switch from normal mode to answering mode when detecting that the user's mobile goes out of the wireless coverage of the Fixed goalkeeper terminal and vice versa. Mute the fixed terminal it is achieved that they only perceive the call from the board of Street users who have the mobile activated to receive them, increasing the privacy of those interested in said calls and eliminating the inconvenience to those people not interested. Other controls that are carried out from the phone mobile are the volume, duration and tone or melody of the mobile call, the default duration of messages from voice, voicemail message recording and enabling new mobile phones in the system to connect wirelessly to the fixed terminal, which you can only do A previously enabled mobile phone. The wireless module for fixed terminal it is equipped with a general reset button after which the device accepts the connection of the first mobile that make the connection request. The successive mobile they want be linked to the system must be enabled by this first mobile or by another previously enabled. Upon receiving a call from the street sign both the mobile terminal can be set so that the ringtone is several tens of seconds in the form of a regular phone call, regardless of the duration of the pulse on the plate Street. When picking up from a mobile phone other users cannot Access communication as a measure of privacy in the system. If one of the users answers the caller from their mobile phone but the call is for another tenant it is possible to transfer the call from one mobile to another.

Description of the drawings

Figure 1.- Shows the equipment included in The invention: wireless terminal module (1), mobile receivers (2), wireless module with access to fixed telephone network (3), remote terminals (4), fixed telephone network (5), mobile terminal local (6), mobile telephone network (7), local fixed terminals (8), local wireless network (9), electronic intercom terminal (10)

Figure 2.- Shows the possible scenarios in the configuration without bridge / repeater equipment. A.- Directed call directly to the user's mobile phone. Components 1, 2, 10 according to description figure 1. B.- Call directed to a telephone external through the user's mobile phone over the network of mobile telephony Components 1, 4-7, 10 according description figure 1.

Figure 3.- Shows the possible scenarios in the configuration with bridge / repeater equipment. A.- Call addressed to through the repeater device to the user's mobile phone and to landlines Components 1-3, 8, 10 according description figure 1. B.- Call directed through the equipment Repeater to an external telephone over the landline network. Components 1, 3-5, 7, 10 according to description figure one.

Figure 4.- Module connection diagram wireless to a goal network and a fixed goalkeeper terminal electronic preexisting with the standard 5-wire system: input of a call (11), door opening (12), ground (13), audio of output (14), audio input (15), and other components (1-10 in descriptions of previous figures).

Figure 5.- Module block diagram wireless door entry system for a goal system 5-wire standard: Bluetooth transceiver (16), antenna (17), source supply (18), mains (19), microcontroller (20), relay (21), Bluetooth module (22), PCM (23), interface (24), block audio (25), PCM interface (26), serial port (27), serial interface (28), relay (29), and other components (1-15 in descriptions of previous figures).

Figure 6.- Equipment block diagram wireless bridge / repeater: ISM antenna (30), transceiver Bluetooth (31), PCM code (32), adaptation circuit (33), interface with the fixed telephone network (34), Bluetooth interface / Fixed telephony (35), telephone line (36), microcontroller (37), interface audio (38), audio I / O (39-41), and other components (1-29 in descriptions of previous figures).

Embodiments of the invention

Next, embodiments are explained. of the invention of a non-limiting nature.

The present invention is conceived as a module for adding a pre-existing electronic doorphone (10) and a pre-existing goal network (9), so that the devices that implement said pre-existing electronic doorphone are not included in the preferred implementation, without implying a limitation on the mode of application of the invention, since it is also intended to cover the case of an electronic door entry that integrates all the functions of the invention and replaces the existing door entry system. In any case, the implementation of the traditional analog electronic doormen is well known, to which the door terminal module described here is connected. The interface between the porter terminal and the traditional analog system's goal network is usually 5-wire: audio input from the entrance panel (15), audio output from the microphone of the goal terminal (14), called (11), door opening (12) and mass (13). There may be another terminal, such as power supply or secret (to confer privacy on communications) but they are optional and their purpose is not essential. The electrical connection between the invention, the goal net and the fixed goalkeeper terminal can be made using thymes, connector (s)
or by inserting the cables into a connection strip of the type used in fixed telephone networks. Only the call wire (11) must be interrupted (11 ') to connect the module (1), so installation is very quick and easy.

The porter terminal module (1) is connected to the particular goal network (9) through an interface circuit (24) responsible for conditioning the analogue input (15) and output (14) audio signals. and of a microcontroller (20). A PCM encoder / decoder (codec) (23) converts between the conditioned analog signals and the digital audio signals in PCM format. The answering machine and presence simulation functions require the inclusion of a voice recording / playback circuit (22) that connects to the PCM Encoder / Decoder. The signal conditioning, analog to digital conversion and voice recording / playback circuits can be integrated in the same audio block (25). There are on the market integrated circuits of several manufacturers that integrate the functions of signal conditioning, encoder / decoder
PCM and voice recording / playback capability, such as Winbond's I5216 integrated circuit.

The electronic intercom terminal (1) incorporates also a Bluetooth transceiver module (16) with an antenna (17), which uses the 2.4 Ghz ISM band, in order to communicate with the optional Bluetooth bridge / repeater device (3) or directly with one or more mobile phones (2) used to implement the user interface

A microcontroller (20) is connected to all the aforementioned blocks communicating with them to carry out the functions of the device. Through a serial interface (28) to the audio block (25) controls the dynamic range of the audio input and output, configure the PCM codee and control the Parameters and recording / playback functions. In the preferred implementation, said serial interface (28) will be an interface I2C standard. The microcontroller (20) is connected to the module Bluetooth (16) via (27) in order to manage the Wireless communication: discover Bluetooth devices that It has within its coverage, connect to Bluetooth devices Registered in the system and exchange voice and data. He microcontroller is also connected to the call input (11) from the entrance panel and control the electronic switch (29) that enables or disables the operation of the doorbell Fixed electronic intercom terminal, implementing the function of silencing This electronic switch (29) in the absence of Power supply in the module (1) must allow the passage of current for the fixed goalkeeper terminal (10) to follow functioning in case of interruption of the power supply for the module for goalkeeper terminal. The microcontroller is connected to an electronic relay or switch (21) whose function is that of opening the door when ordered from a terminal mobile doorman

The power is supplied by a regulated power supply (18) that can be connected (19) to the electrical network of the dwelling or to the power supply line of the goal net, if there is one, this being preferable second option for its greater ease and economy, provided that the Power of the goal net (9) support the consumption of current required.

The bridge / repeater equipment (3) consists of a Bluetooth transceiver (31) with which it establishes communication without wires with the Bluetooth module for porter terminal (1) and with the mobile terminals, an antenna (30) for the 2.4 ISM band Ghz, the interface circuit (33) with the fixed telephone network (5), a codec from PCM digital signals to analog audio signals (32) and a microcontroller (37) responsible for governing the equipment and temporarily store and transfer the bidirectional flow of Digital audio associated with the conversation.

The Bluetooth module for the porter terminal (1) acts as the master of the Bluetooth network ( piconet ) that is formed in the user's home, so that it synchronizes and coordinates the other devices connected to the network.

In order for Bluetooth devices to be used as mobile terminals (2) of the electronic doorphone, they must have activated Bluetooth communication by executing a program that must be previously installed on said devices. The user can register and unsubscribe in the wireless porter network of your home manually or, instead, you can let your Bluetooth device detect the Bluetooth module for the porter terminal (1) and connect to it when entering your coverage area. This process is implemented by searching for devices ( inquiring ) from time to time and making the connection ( paging ) to the Bluetooth network ( piconet ) when other Bluetooth devices are available.

Then the mobile terminal configures its Bluetooth transceiver in parked mode, which is characterized by its Low power consumption and connection maintenance without cables.

When a call is made on the board street destined to the house where the invention is located, the microcontroller (20) captures the event through (11) and manages the Bluetooth transceiver (16) through the serial port (27) so that wireless communication with mobile terminals is activated (2). Once the communication is activated, it is transmitted to the mobile terminals the call event via a connection asynchronous non-connection oriented (ACL) and the conversation with the first team that responds to the event of hook off.

When establishing a communication between a mobile terminal (2) and the module for electronic door entry terminal (1), the audio coming from the entrance panel is digitized in (25) and transmitted by (16) according to the control of (20) in the module for goalkeeper terminal (1). The mobile terminal (2) must receive this data and assemble them to get an audio stream in PCM digital format which, after converting to analog format, is Play on your speaker or headset. The voice flow from the Mobile terminal towards the street sign is symmetrical to the one described. He type of wireless connection used for voice is synchronous connection-oriented (SCO), having the Bluetooth standard defined a PCM interface (26) and specific communication profiles For audio communication.

When wireless communication is established via the bridge / repeater device (3) your Bluetooth transceiver (31) receives data and digital audio that flows both ways and its microcontroller (37) temporarily stores them for transmit them at a later time, since the technology Bluetooth uses temporary multiplexing (TDD).

The interface with the fixed telephone network (34) of the bridge / repeater equipment (3) consists of a circuitry of adaptation of analog signals (33) and a PCM codec (32), whose joint function is the conversion of bidirectional audio from analog telephone format to PCM digital format and vice versa. It also has the means to pick up the telephone line to make a call and to ring the phones of the Interior network of the house. The PCM codec (32) converts the audio coming from the entrance panel in PCM format to audio in format analog and reverse conversion with analog audio from the adaptation circuit (33) connected to the network of fixed telephony (5) when a call is redirected to a telephone exterior (4). In this preferred team implementation bridge / repeater (3) a DMTF tone generator is not included, necessary to be able to carry out the marking. As an alternative more simple and economic it is decided to take advantage of the circuit of Audio playback (22) of the Bluetooth module for terminal intercom (1) with factory pre-recorded tones, simplifying the bridge / repeater equipment. The terminal module goalkeeper (1) to redirect a call to a phone outside should send to the bridge / repeater (3) the command of call abroad by an ACL link, to pick up the line phone and enable conversion of PCM audio received by Bluetooth to analog audio. The module for goalkeeper terminal (1) then play the tones associated with the phone number that you have configured, send them by an SCO link and wait to receive the accepted call command originated by the device bridge / repeater (3). At this moment the module for terminal doorman establishes sound communication between the street sign of the goal net (9) and the remote telephone (4), because until the Acceptance of the call to the caller is not picked up so that the redirection is transparent to your opinion.

Activation of call redirection to an outside telephone (4) is done from a mobile terminal of goalkeeper (2). The deactivation of this function is carried out when Bluetooth module for electronic door entry terminal (1) detects to one of the mobile porter terminals (2) within the area of coverage.

When using the Bluetooth mobile phone (2) The same fixed telephone wireless terminal is used procedure that when redirecting a call is done towards an external telephone, only in this case it is the telephone mobile which controls the bridge / repeater equipment (3) instead of module for porter terminal (1). The mobile phone (2) sends to bridge / repeater equipment (3) the outside call command by a ACL link, then you must send the dial tone sequence by the SCO link used for audio and wait for the command Acceptance of the call from the bridge / repeater device (3) to channel the two-way voice stream digitized by the SCO link.

Claims (4)

1. Wireless module for electronic door entry terminal (1) characterized by being able to connect to the wired pre-existing wired network (9) in the building and communicate bidirectionally via Bluetooth wireless connection, ZigBee or other standard technology within its coverage area with one or several wireless equipment, preferably mobile phones (2), that implement the user interface of the porter service, both for voice communication, as well as for the configuration of the system functions, and which also makes it possible to redirect calls from from the entrance panel to an external telephone (4) by means of a Bluetooth or ZigBee mobile telephone (6) connected to the mobile telephone network (7).
2. Wireless module for electronic door entry terminal (1) according to claim 1, characterized in that it also incorporates an answering machine with voicemail so that new people can leave voice messages in the absence of tenants, with the option of taking advantage of the Audio circuitry (25) to implement the presence simulation function for security in periods of absence of the tenants of the house, consisting of reproducing a habitual response chosen randomly from several pre-recorded or recorded responses by users.
3. Wireless bridge / repeater device (3) characterized in that it allows two-way communication to be established with the wireless module for electronic door entry terminal (1) and with the mobile phones of users (2) in order to extend the wireless coverage area of the intercom terminal so that users can communicate wirelessly with it from anywhere in an extensive home or with an intricate distribution.
4. Wireless bridge / repeater device (3) according to claim 3 characterized in that it also implements the connection with the internal user telephone network in order to redirect calls to the doorman to an outside telephone, to use the fixed telephone terminals as fixed terminals of electronic intercom and using the mobile phone as a fixed telephone wireless terminal.
ES200601172A 2006-04-28 2006-04-28 Modular system for wireless electronic porter. Active ES2302430B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
ES200601172A ES2302430B2 (en) 2006-04-28 2006-04-28 Modular system for wireless electronic porter.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
ES200601172A ES2302430B2 (en) 2006-04-28 2006-04-28 Modular system for wireless electronic porter.
PCT/ES2007/000256 WO2007125143A1 (en) 2006-04-28 2007-04-26 Modular system for wireless electronic door-entry device

Publications (2)

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ES2302430A1 ES2302430A1 (en) 2008-07-01
ES2302430B2 true ES2302430B2 (en) 2009-03-16



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WO2007125143A9 (en) 2007-12-27
ES2302430A1 (en) 2008-07-01
WO2007125143A1 (en) 2007-11-08

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