JP2001028635A - Central management unit - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a central management unit that enhances the convenience, facilitates operations and is suitable for miniaturization by integrating a plurality of devices so as to manage them intensively. SOLUTION: The central management unit is provided with a radio controller 12, an interface 28, a cordless phone controller 30, a voice input output device 32, a ten-key unit 34, and a large-sized liquid crystal display device 36 as one body, and intensively conducts notice control that informs of an open/close state of a switch section through communication with a sensor S via the radio controller 12 by utilizing the ten-key unit 34 and the large-sized liquid crystal display device 36, drive control that unlocks or locks an electric lock through communication with the wireless key K via the radio controller 12, connection control that connects a cordless phone to a public telephone line network 22 in a speech enable way, and connection control that connects the voice input output device 32 and an interphone 24 in a speech enable way.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an apparatus for integrating a plurality of devices and for centrally managing them, and more particularly to improving convenience, facilitating operation, and reducing the size. The present invention relates to a centralized management device suitable for the invention.

[0002]

2. Description of the Related Art In recent home security systems, a sophisticated system is required. Intercom with surveillance camera with large display, electronic lock system that opens and closes the gate by remote control after confirming safety, security system to centrally monitor the safety status in the house, keyless entry system for the house, etc. Is required.

[0003] These individual systems have already been put into practical use, and intercom devices and multifunctional telephones that combine these individual systems have also been put into practical use. As an intercom device, there is not only an intercom function, but also a device with a security function that can check a security setting of a door or door closing when going out, for example, disclosed in JP-A-10-307976. There are things. In the same gazette, there is proposed such an intercom apparatus capable of monitoring a plurality of security monitoring targets collectively.

A multifunctional telephone is disclosed in, for example, Japanese Patent Application Laid-Open No. 62-114369. In this publication, a multifunctional telephone with an information display function is proposed in which an output of a safety device for detecting an abnormality in a house can be confirmed by a telephone outside the house such as a place where the user is away from home. Also,
As a security system, for example,
No. 91 and JP-A-6-269062. The former publication proposes a device using an LCX parallel resonator circuit including a sensor device transmitting / receiving antenna, a capacitor, and a solid-state vibrator. In the latter publication, by adding a spread spectrum communication system,
A system has been proposed which is resistant to external noise interference and which increases the communication distance by preventing a mutual interference by changing a duty ratio or a dividing ratio of a burst wave for each system.

As described above, in recent years, various systems have been installed in houses, and when these systems are installed in houses to realize a comprehensive home security system, It is necessary to integrate and install a plurality of control devices for controlling each system in one place from the viewpoint of convenience such as ease of use for residents. Furthermore, it is common to install telephones connected to public lines and cordless telephones in houses,
Similarly, from the viewpoint of resident convenience, it is desired that such devices be installed as integrated as possible.

[0006] Further, the plurality of control devices, telephones and the like include:
It is preferable to install it in places where residents spend a lot of time, such as kitchens and living rooms.

[0007]

In a place such as a kitchen or a living room, the installation space is limited and the demand for the overall appearance is particularly high. Requires a high appearance and shape with high affinity with the surrounding environment and miniaturization. In addition, if the device has multiple functions, it is naturally required that the operation is easy.

However, simply incorporating the plurality of control devices, telephones, and the like in the same device results in the same input / output device such as a switch used in each system and the same display device such as an LED used in each system. Since many devices are installed on the apparatus, not only the shape becomes large but also the operation becomes complicated. When an electronic lock system or a keyless entry system is integrated and installed, an identification code for driving the electronic lock is wirelessly communicated between the key device and the control device. It is desired to employ a highly confidential communication method for inter-wireless communication so that the identification code is not eavesdropped by a third party.

SUMMARY OF THE INVENTION The present invention has been made in view of such unresolved problems of the prior art, and is convenient by integrating a plurality of devices and centrally managing them. It is an object of the present invention to provide a centralized management device suitable for improving the operability, facilitating the operation and reducing the size, and providing a centralized management device suitable for improving the security.

[0010]

According to a first aspect of the present invention, there is provided a centralized management apparatus for integrating a plurality of devices and centrally managing the devices. Wireless communication means for performing wireless communication, an interface capable of connecting external devices including an electronic lock, a telephone line, and an intercom; a telephone; a voice input / output means for performing input / output by voice; and input of user operations An input unit and a display unit are integrally provided, and the opening and closing unit communicates via the wireless communication unit and a detection device that detects an open / close state of the opening and closing unit using the input unit and the display unit. Control for notifying the opening / closing state of the electronic device, driving control for unlocking or locking the electronic lock by communicating with the key device via the wireless communication means, and talking on the telephone via the interface Connection control to connect to the telephone line to the ability and through the interface and performs concentrated the call connected control which connects the interphone and the audio output means.

With such a configuration, when the user operates the input means, notification control is performed, so that communication is performed with the detection device via the wireless communication means, and the open / close state of the open / close unit is displayed on the display means. Will be notified. Also, when the electronic lock is connected to the interface and the user operates the key device, drive control is performed so that communication with the key device is performed via wireless communication means, and the electronic lock is unlocked or locked.

When the telephone line is connected to the interface and the user operates the input means (dial or the like), the connection is controlled so that the telephone can be connected to the telephone line via the interface. Is done. Also, connect the intercom to the interface,
When a visitor makes a call with the intercom or the user operates the input means, connection control is performed, so that the voice input / output means and the interphone can be connected via the interface so that a call can be made. Is done.

Here, the notification control, the drive control or the connection control may be performed by a plurality of control means, but from the viewpoint of miniaturization, the control is performed by a single control means. Is preferred. Furthermore, the centralized management device according to claim 2 of the present invention, in the centralized management device according to claim 1, communicates with the detection device via the wireless communication unit to notify the open / close state of the open / close unit. A notification control device, an electronic lock control device that communicates with the key device via the wireless communication unit to open or lock the electronic lock, and the notification control device using the input unit and the display unit. And a central control means for centrally controlling the electronic lock control device and the connection control.

With such a configuration, when the user operates the input means, the notification control device is controlled by the central control means, and the notification control device communicates with the detection device via the wireless communication means. The opening / closing state of the opening / closing section is notified to the display means. Also, when the electronic lock is connected to the interface and the user operates the key device, the electronic lock control device is controlled by the centralized control means, and the electronic lock control device communicates with the key device via the wireless communication means. The electronic lock is unlocked or locked.

Further, when a telephone line is connected to the interface and the user operates the input means (dial or the like), connection control is performed by the central control means so that the telephone can communicate via the interface. Connected to telephone line. In addition, when an intercom is connected to the interface and a visitor makes a call with the intercom or the user operates the input means,
By performing connection control by the central control means,
The voice input / output means and the interphone are connected via the interface so that a call can be made.

Further, a centralized control device according to a third aspect of the present invention is the centralized control device according to the first aspect, wherein centralized control means for centrally performing the notification control, the drive control, and the connection control is integrated. It is prepared as. With such a configuration, when the user operates the input unit, notification control is performed by the central control unit, so that communication is performed with the detection device via the wireless communication unit, and the open / close state of the open / close unit is displayed. Notified to means.

When the electronic lock is connected to the interface and the user operates the key device, the drive control is performed by the central control means, so that the communication with the key device is performed via the wireless communication means, and the electronic lock is operated. Is unlocked or locked. Also, when the telephone line is connected to the interface and the user operates the input means (dial, etc.), the connection control is performed by the central control means, so that the telephone line can be communicated through the interface. Connected.

When an intercom is connected to the interface and a visitor calls the intercom or the user operates the input means, the connection control is performed by the central control means, so that the connection is controlled via the interface. The voice input / output means and the interphone are connected so as to be able to talk. Further, a centralized management device according to claim 4 of the present invention is the centralized management device according to any one of claims 2 and 3, wherein the interface is connectable to an intercom having a display, The centralized control means centrally performs control for displaying the open / closed state of the opening / closing section and the unlocked or locked state of the electronic lock on the display.

With this configuration, when the intercom having the display is connected to the interface, the central control means displays the open / closed state of the open / close section and the unlocked / locked state of the electronic lock on the display. Therefore, when the centralized control device according to claim 4 is installed in a house, the resident can check whether the opening / closing part such as a window or a door is open or not with a display provided on an external intercom, or It is possible to confirm whether or not the electronic lock provided in the device is unlocked when going out.

Further, a centralized management device according to a fifth aspect of the present invention is the centralized management device according to any one of the first to fourth aspects, wherein the communication between the detection device and the wireless communication means; Communication between the key device and the wireless communication unit is performed by a spread spectrum communication method. With such a configuration, when the user operates the input unit, the notification control is performed, so that the detection device communicates with the detection device by the spread spectrum communication method via the wireless communication unit, and the open / close state of the open / close unit is changed. The display means is notified.

When the electronic lock is connected to the interface and the user operates the key device, drive control is performed, so that the key device communicates with the key device through a wireless communication means in a spread spectrum communication system. The lock opens or locks. The centralized management device according to a sixth aspect of the present invention is the centralized management device according to the fifth aspect, wherein the wireless communication means has a receiver configured using a surface acoustic wave convolver.

With such a configuration, when communication is performed with the detection device by the spread spectrum communication method via the wireless communication means, a signal from the detection device is received by the surface acoustic wave convolver. When communicating with the key device by the spread spectrum communication method via the wireless communication means, a signal from the key device is received by the surface acoustic wave convolver.

According to a seventh aspect of the present invention, there is provided the centralized control device according to the sixth aspect, wherein the surface acoustic wave convolver includes two input electrodes and a plurality of rectangular plate-shaped projecting pieces. A blind output output electrode having
A rectangular plate-like semiconductor layer and a plurality of rectangular plate-like grating electrodes are provided on a piezoelectric substrate, and the input electrodes are arranged to face each other, and propagate in the longitudinal direction of the semiconductor layer between the input electrodes. The semiconductor layer is disposed outside the surface acoustic wave propagation path in parallel with the surface acoustic wave propagation direction, and the projecting direction of the projecting piece and the longitudinal direction of the grating electrode are orthogonal to the propagation direction and The plurality of grating electrodes are arranged in the propagation path, and the output extraction electrodes are arranged outside the propagation path, so that the projecting pieces and the plurality of grating electrodes alternately span the semiconductor layer.

With such a configuration, when a received spread signal is input to one input electrode and a reference signal composed of a despread code string is input to the other input electrode, the surface signal is transmitted through the grating electrode and the semiconductor layer. The elastic wave propagates between the input electrodes, and a correlation signal between the spread signal and the reference signal is extracted from the output extraction electrode. Here, the piezoelectric substrate may be a piezoelectric single crystal substrate or a substrate on which a piezoelectric thin film is formed. As the piezoelectric substrate, for example, LiNbO ₃ , Li
TaO ₃ , Li ₂ B ₄ O ₇ , KNbO ₃ and PZT are preferred. In addition, L of 64 degree Y cut, 41 degree Y cut, 128 degree Y cut, Y cut or X cut or Z cut
It is also preferable to use a substrate cut surface such as iNbO ₃ or 36 ° Y-cut, X-cut, or Y-cut LiTaO ₃ . The piezoelectric thin film substrate is formed by forming a piezoelectric thin film on a single crystal substrate such as sapphire, Si, or GaAs.
Examples of the piezoelectric thin film include ZnO, LiNbO ₃ ,
LiTaO ₃ , KNbO ₃ , PZT, PbTiO ₃ , Ba
TiO ₃ and Li ₂ B ₄ O ₇ are preferred. Also, sapphire,
A dielectric film such as SiO or SiO ₂ may be inserted between the single crystal substrate such as Si or GaAs and the piezoelectric thin film. Further, as the piezoelectric thin film substrate, a multilayer laminated film may be formed by alternately laminating different types of thin films among the above piezoelectric thin films on a single crystal substrate such as sapphire or Si. For example, a multilayer laminated film composed of LiNbO ₃ and LiTaO ₃ is a preferable example.

The input electrode and the grating electrode are not particularly limited in their materials.
For example, Al, Au, Pt, Cu, Al-Ti alloy, A
A 1-Cu alloy and a multilayer electrode of Al and Ti are preferred. In the centralized control device according to the present invention, the input electrode, the output extraction electrode, the semiconductor layer and the grating electrode are provided on the piezoelectric substrate. In addition, the ground extraction electrode is provided on the piezoelectric substrate. You may. In this case, the surface acoustic wave convolver is provided on the piezoelectric substrate with an interdigitated ground extraction electrode having a plurality of rectangular plate-shaped projecting pieces, and makes the projecting direction of the projecting pieces orthogonal to the propagation direction and The ground extraction electrode is disposed outside the propagation path so as to face the output extraction electrode so that the plurality of projecting pieces and the plurality of grating electrodes are alternately arranged.

The grating electrode is formed with an electrode width and an electrode interval that not only efficiently transmits the surface acoustic wave electric field to the semiconductor layer but also minimizes the reflection thereof. That is, the electrode width L of the grating electrode
And the electrode spacing S is λ, where λ is the surface acoustic wave wavelength.
It is preferably at least / 8 and at most λ. Further, in order to minimize the attenuation of surface acoustic waves due to reflection at the grating electrode, λ / 3n or λ / 2n
(N is a positive integer), λ / 4,
It is particularly preferable to set λ / 6 and λ / 8. The electrode width L and the electrode width at the portion where the projecting piece of the output extraction electrode and the grating electrode alternately overlap when viewed from the propagation direction and at the portion where the projecting piece of the ground extraction electrode and the grating electrode alternately overlap when viewed from the propagation direction. It is preferable that each of the intervals S is not less than λ / 16 and not more than λ / 2. For example, if the grating electrode width and the electrode interval on the propagation path are λ / 8, on the semiconductor layer, the protruding piece of the output extraction electrode and the electrode width L and the electrode interval S of the grating electrode are λ / 16, respectively.

The width W of the surface acoustic wave propagation path and the width a of the semiconductor thin film can be selected to appropriate values. However, considering the size of the surface acoustic wave convolver, it is preferable that W / a> 1. It is preferable from experience that impedance matching is easy to take when W / a is around 8 to 10. In addition, the surface acoustic wave convolver can obtain almost the same efficiency value even when the ground extraction electrode is connected to the output side and the output extraction electrode is connected to the ground side. It suffices if the output and the ground are wired one-to-one.

The surface acoustic wave convolver can reduce the loss due to the bidirectionality of the surface acoustic wave by using the unidirectional electrode. In order to form a high-band surface acoustic wave convolver, it is also effective to use a chirped electrode. Furthermore, the centralized control device according to claim 8 of the present invention is the centralized control device according to claim 7, wherein the surface acoustic wave convolver has a protruding piece of the output extraction electrode, the grating electrode, as viewed from the propagation direction. Are alternately overlapped with each other and have a length of 15 times or less the wavelength of the surface acoustic wave.

With such a configuration, the parasitic capacitance generated at the portion where the projecting piece of the output extraction electrode and the grating electrode alternately overlap from the propagation direction is small, so that the distortion and noise of the correlation signal due to the parasitic capacitance are small. Become.
The distortion and noise of the correlation signal due to this parasitic capacitance are
In performing reception by spread spectrum communication, a problem occurs when the length is about 15 times the wavelength of the surface acoustic wave.

According to a ninth aspect of the present invention, in the centralized management device according to any one of the seventh and eighth aspects, the semiconductor layer comprises a p-type semiconductor layer and an n-type semiconductor layer.
A semiconductor layer was stacked in the thickness direction, and a layer on which the projecting piece of the output extraction electrode and the grating electrode were bridged was provided as the p-type semiconductor layer, and the semiconductor layer was provided on the piezoelectric substrate.

Here, the p-type semiconductor layer and the n-type semiconductor layer can be used by controlling the p-type and the n-type by doping using the same material.
If a combination of molds, different materials may be joined and used. The n-type semiconductor layer refers to a semiconductor layer in which majority carriers are electrons. As the n-type semiconductor layer, for example, GaAs, InSb, and InAs are preferable. Also,
Not only binary systems but also ternary mixed crystals and
Original mixed crystals are also preferred. For example, as a ternary mixed crystal, In _{x
Ga 1-x As, In x} Ga 1-x Sb, mention may be made of InAs _y Sb _1-y and GaAs _y Sb _1-y, as the quaternary mixed _{crystal, In x Ga 1-x As} y Sb 1 _-y can be mentioned.
In order to obtain a high electron mobility of an n-type semiconductor in which conduction is performed by electrons, for example, In _x Ga _{1 -x} M (M
Is a V group semiconductor such as As or Sb), x is 0 ≦ x ≦ 1.
It is possible to take any value in the range of 0,
It is preferable that the range of 0.5 ≦ x ≦ 1.0 is satisfied.
It is more preferable that the range of 8 ≦ x ≦ 1.0 is satisfied. RA
_{y of} s _y Sb _1-y (R is a group III semiconductor such as In or Ga)
Has a high electron mobility in the range of 0 ≦ y ≦ 1.0, and preferably in the range of 0 ≦ y ≦ 0.5.

The p-type semiconductor layer refers to a semiconductor layer in which holes are majority carriers. As the p-type semiconductor, GaSb having holes as majority carriers is originally preferable. As the ternary mixed crystal, GaAs _y Sb _1-y (0 <y ≦
0.5) may be used. In addition, even when a semiconductor in which majority carriers are electrons is used, doping can be performed to the extent that the conductivity type changes from n-type to p-type.
As an example was converted to the p-type semiconductor by doping, p-GaAs, p-InAs , p-InAs y S
b _1-y , p-In _x Ga _1-x As, p-InSb, p-I
n _x Ga _1-x Sb, may be mentioned _{p-In x Ga 1-x} As y Sb 1-y.

The total thickness h1 of the semiconductor layer is:
It is preferably 5 [μm] or less, more preferably 1 [μm] or less, and still more preferably 0.8 [μm].
m] or less. In order to effectively transmit the electric field of the surface acoustic wave to the semiconductor layer, the thickness of the p-type semiconductor layer is 1 μm.
m] or less, more preferably 0.5
[Μm] or less, more preferably 0.4 [μm]
The following is good.

Further, the centralized management device according to claim 10 of the present invention is the centralized management device according to claim 9,
The n-type semiconductor layer is made of InSb, InGa _x Sb _1-x (0
<X <1) and InGa;
Type semiconductor layer is composed of GaSb and GaAs _y Sb _1-y (0 <
y ≦ 0.5). Furthermore, the centralized management device according to claim 11 of the present invention is characterized in that:
In the centralized control device according to any one of the first to third aspects, the surface acoustic wave convolver includes a buffer layer containing Sb provided between the semiconductor layer and the piezoelectric substrate.

With such a configuration, a semiconductor layer having good crystallinity can be realized, so that a highly efficient surface acoustic wave convolver can be configured. Here, as the buffer layer, for example, a binary system such as AlSb, GaSb, etc., AlGaSb, AlAsSb, AlInSb
Ternary system such as AlGaAsSb, AlInAsSb,
A quaternary system such as AlInGaSb, AlInPSb, or AlGaPSb is preferable, but two or more semiconductor thin films may be stacked. Furthermore, when determining the composition of the ternary or higher buffer layer, by adjusting the composition to have a value that is the same as or close to the lattice constant of the crystal constituting the semiconductor layer, a larger electron concentration in the semiconductor layer can be obtained. Mobility can be realized. The term “lattice matching” in the present invention indicates that the semiconductor layer has the same crystal structure and a similar lattice constant. Here, close lattice constant means that the difference between the lattice constant of the crystal forming the semiconductor layer and the lattice constant of the crystal forming the buffer layer is within ± 10%, more preferably ± 7%.
[%], More preferably ± 5%. The thickness of the buffer layer is preferably as small as possible in order to facilitate fabrication of a grating electrode over the semiconductor layer. That is, the thickness h1 of the buffer layer is 5 [n
m] ≦ h1 ≦ 3000 [nm], preferably 10 [nm] ≦ h1 ≦ 2000 [nm], more preferably 20 [nm] ≦ h1 ≦ 1000 [nm].

The buffer layer needs to be electrically insulated from the semiconductor layer in order to efficiently interact with electrons in the semiconductor layer and surface acoustic waves traveling on the propagation path.
That is, the resistance value of the buffer layer is at least 5 to 10 times higher than that of the semiconductor layer, preferably 100 times or more, and more preferably 1000 times or more. In the surface acoustic wave convolver, a dielectric layer may be inserted between the piezoelectric substrate and the buffer layer. Examples of the dielectric layer include SiO, SiO ₂ , silicon nitride, and Ce.
O ₂ , CaF ₂ , BaF ₂ , SrF ₂ , TiO ₂ , Y ₂ O ₃ ,
ZrO ₂ , MgO, Al ₂ O ₃ , Ta ₂ O _{5 and the} like are used. The thickness of the dielectric layer is preferably as thin as possible, preferably 200 [nm] or less, more preferably 100 [nm] or less.

The buffer layer and the semiconductor layer may be formed by any method as long as a thin film can be generally grown. For example, a general vapor deposition method, a molecular beam epitaxy (MBE) method, an organic Metal molecular beam epitaxy (MOMB
The E) method and the metal organic chemical vapor deposition (MOCVD) method are particularly preferred methods.

[0038]

Embodiments of the present invention will be described below with reference to the drawings. 1 to 4 are diagrams showing an embodiment of a centralized management device according to the present invention. In this embodiment, the centralized management device according to the present invention is applied to a case where the centralized management device is arranged in a house as shown in FIG. 1 to realize a comprehensive home security system.

First, the configuration of the centralized management device according to the present invention will be described with reference to FIG. FIG. 1 is a block diagram showing a configuration of a centralized management device according to the present invention. As shown in FIG. 1, the centralized management device 100 includes an antenna 10 and a wireless control device 1 that performs wireless communication via the antenna 10.
2, a keyless entry system controller 14, an electronic lock controller 16, and a security system controller 18
And an interface 28 for connecting an external device, and a cordless telephone control device 3 for controlling the cordless telephone.
0, a voice input / output device 32 including a microphone, a speaker, and the like.
, Numeric keypad unit 34 and large liquid crystal display 3
6, a central processing unit 38 for centrally controlling these,
A memory 40 and a power control device 42 for controlling power are integrally provided.

The interface 28 includes an electronic lock driving device 20 for driving an electronic lock provided as a lock unit such as a window or a door, a public telephone network 22, and an intercom provided outside the house such as an entrance or a gate. And 24 are connected as external devices. The intercom 24 has a display 2 for displaying the open / closed state of an opening / closing unit such as a window or a door and the unlocked or locked state of an electronic lock by blinking an LED or the like.
6 is provided, and the display 26 can be controlled via an interface 28.

The memory 40 is composed of storage elements such as a ROM and a RAM, and stores a control program of the central processing unit 38 and an identification code required by the keyless entry system controller 14 in a predetermined area in advance. The necessary operation results are stored in the operation process. When an unlocking command for unlocking the electronic lock is input, the electronic lock control device 16 drives and controls the electronic lock driving device 20 via the interface 28 so as to unlock the electronic lock, and locks the electronic lock. When a locking command is input, the electronic lock driving device 20 is driven and controlled via the interface 28 so as to lock the electronic lock. The unlock command or the lock command is input from the keyless entry system control device 14 or the central processing unit 38.

Keyless entry system controller 14
Communicates via a wireless key K ₁ ~K _n and the radio control apparatus 12 having a function as a key, when receiving the identification code from the wireless key K ₁ ~K _n is an identification code and a memory that receives An unlocking command or a locking command is output to the electronic lock control device 16 when the identification codes stored in the storage device 40 are compared with each other. Specifically, if the identification codes match,
When the electronic lock is unlocked, a lock command is output to the electronic lock control device 16, and when the electronic lock is locked, an unlock command is output to the electronic lock control device 16. That is, when resident in a state where the electronic lock is unlocked to input a predetermined operation to the wireless key K ₁ ~K _n, then lock the electronic lock, resident in a state where electronic lock conversely is locked predetermined When the input operation to the wireless key K ₁ ~K _n, unlocks the electronic lock.

The wireless key K ₁ ~K _n is input a command to be unlocked or lock the electronic lock (e.g., detecting that the user presses the button once) were time is previously stored in the wireless key An identification code is transmitted by spread spectrum communication, and a command to display the open / closed state of the open / close unit and the unlocked / locked state of the electronic lock on the display 26 is input (for example, it is detected that the button is continuously pressed twice). Then, the display command is transmitted by the spread spectrum communication method.

When the security system control unit 18 receives a request for notification of the opening / closing unit from the central processing unit 38, the security system control unit 18 detects a plurality of sensors S _{1 to} S _m for detecting the open / close state of the opening / closing unit.
Communication with the wireless controller 12 and each sensor S ₁
And the opening and closing states of the switching unit so as to output to the central processing unit 38 obtains the detection result from to S _m. Specifically,
When you enter the closing section notification request from the central processing unit 38 transmits a start signal to each sensor S ₁ to S _m, when receiving a detection signal from the sensor S ₁ to S _m in accordance with this, The open / close state of each open / close unit is output to the central processing unit 38 based on the received detection signal.

When the sensors S _{1 to} S _m receive the activation signal from the security system control device 18, the sensors S _{1 to} S _m detect the open / close state of the opening / closing section to which the sensors are attached,
The detection result is transmitted as a detection signal by a spread spectrum communication method. In addition, each of the sensors S ₁ ~
S _m transmits a detection signal spread spectrum modulated by the different spreading code sequences.

The radio network controller 12 includes a receiver configured using the surface acoustic wave convolver, communicate wirelessly key K ₁ ~K _n and the sensor S ₁ to S _m and spread spectrum communication system via the antenna 10 It is supposed to do.
Specifically, performing the reception of the identification signal from the wireless key K ₁ ~K _n, and the reception of the detection signal from the sensor S ₁ to S _m in spread spectrum communication system.

Next, the configuration of the surface acoustic wave convolver constituting the receiver of the radio controller 12 will be described in detail with reference to FIGS. FIG. 2 is a perspective view of the surface acoustic wave convolver 50, FIG. 3 is a plan view of the surface acoustic wave convolver 50, and FIG. 4 is an enlarged perspective view of the semiconductor layer 58. As shown in FIGS. 2 and 3, the surface acoustic wave convolver 50 includes two input electrodes 54a and 54b.
Interdigital output electrode 56a having a plurality of rectangular plate-shaped projecting pieces 55a on one side; and interdigital output electrode 56b having a plurality of rectangular plate-shaped projecting pieces 55b on one side.
And a rectangular plate-like semiconductor layer 58 and a plurality of rectangular plate-like grating electrodes 60 are provided on a piezoelectric substrate 52.

The input electrodes 54a and 54b are of an interdigital
The two electrodes are combined and arranged to face each other. The semiconductor layer 58 has its longitudinal direction set to the input electrode 54.
It is arranged outside the propagation path of the surface acoustic wave in a direction parallel to the propagation direction of the surface acoustic wave propagating between the a and 54b. The output extraction electrode 56a is arranged such that the projecting direction of the projecting piece 55a is orthogonal to the propagation direction of the surface acoustic wave, and the projecting piece 55a is
The grating electrode 60 has a longitudinal direction perpendicular to the propagation direction of the surface acoustic wave, and the protruding piece 55 a and the grating electrode 60 are formed on the semiconductor layer 58. They are arranged in a surface acoustic wave propagation path so as to be alternately arranged.

Here, as viewed from the propagation direction of the surface acoustic wave, the length of the portion where the protruding pieces 55a of the output extraction electrode 56a and the grating electrode 60 alternately overlap is 15λ (λ is the wavelength of the surface acoustic wave). It is as follows. Also,
In this overlapping portion, the width of the protruding piece 55a and the electrode width of the grating electrode 60 and the distance between them are λ
/ 16, and in other parts, the electrode width and the electrode interval of the protruding piece 55a and the grating electrode 60 are:
Each is λ / 8.

The ground extraction electrode 56b is opposed to the output extraction electrode 55a such that the projection direction of the projecting piece 55b is orthogonal to the propagation direction of the surface acoustic wave, and the projection piece 55b and the grating electrode 60 are alternately arranged. It is arranged outside the propagation path of the elastic wave. Here, as viewed from the propagation direction of the surface acoustic wave, the length of the portion where the protruding pieces 55b of the ground extraction electrode 56b and the grating electrode 60 alternately overlap is 1
5λ or less. In the overlapping portion, the electrode width of the protruding piece 55b and the grating electrode 60 and the interval between them are λ / 16, and in the other portions, the electrode width and the electrode interval of the protruding piece 55b and the grating electrode 60 are Each is λ / 8.

As shown in FIG. 4, the semiconductor layer 58 is formed by laminating a p-type semiconductor layer 58a and an n-type semiconductor layer 58b in the thickness direction, and the protruding piece 55a of the output extraction electrode 56a and the grating electrode 60 are formed. Is formed on the p-type semiconductor layer 58a.
Are provided on the piezoelectric substrate 52. Further, a buffer layer 59 containing Sb is interposed between the semiconductor layer 58 and the piezoelectric substrate layer 52.

The p-type semiconductor layer 58a is made of GaSb and G
aAs _y Sb _1-y (0 <y ≦ 0.5), and the n-type semiconductor layer 58b is made of InSb, InGa _x Sb
_1-x (0 <x <1) or InGa. Returning to FIG. 1, the central processing unit 38 includes a microprocessing unit MPU and the like, and a memory 40.
Of the keyless entry system control device 1 using the numeric keypad unit 34 and the large liquid crystal display 36.
4. The electronic lock control device 16, the security system control device 18, the intercom 24, the display 26, the voice input / output device 32, and the cordless telephone control device 30 are centrally controlled. Specifically, centralized control is performed as follows.

First, when a command for notifying the open / closed state of the opening / closing section such as a window or a door is input from the ten key unit 34, the opening / closing section notification request is sent to the security system control device 1.
When the open / close state of each open / close unit is input from the security system control device 18 in response to this, the open / close state of each open / close unit is displayed on the large liquid crystal display 36.

When a command to open the electronic lock is input from the numeric key unit 34, an unlock command is output to the electronic lock control device 16, and when a command to lock the electronic lock is input from the numeric key unit 34, The lock command is output to the electronic lock controller 16. Further, when an off-hook of the cordless telephone is detected and a dial operation is input from the ten key unit 34, the cordless telephone control device 30 is connected to the public telephone network 22 via the interface 28 so as to be able to talk. After that, when the on-hook of the cordless telephone is detected, the connection between the cordless telephone control device 30 and the public telephone network 22 is cut off.

When a call of the intercom 24 is detected, the fact is displayed on the large liquid crystal display 36, and
Thereafter, until the predetermined time elapses, the intercom 2
When an instruction to connect to the telephone 4 is input from the numeric key unit 34, the voice input / output device 32 and the interphone 24 are connected via the interface 28 so that they can talk. After that, when a command to cut off the connection with the intercom 24 is input from the numeric key unit 34, the connection between the voice input / output device 32 and the interphone 24 is cut off.

[0056] Also, when receiving a display command from the wireless key K ₁ ~K _n is adapted to display the unlocked or locked state of the opening and closing state and the electronic lock of the closing part on the display device 26. The processing for acquiring the open / closed state of the opening / closing unit and the unlocked / locked state of the electronic lock is based on the above example.
Next, the operation of the above embodiment will be described.

First, a case will be described in which the resident uses the centralized management device 100 to check whether the opening and closing parts such as windows and doors are open. In the centralized management device 100, when a command to notify the open / closed state of the opening / closing unit is input from the ten key unit 34 by the resident, the central processing unit 38 sends an opening / closing unit notification request to the security system control device 1.
The activation signal is transmitted to the sensors S _{1 to} S _m by the security system controller 18 via the wireless controller 12.

When each of the sensors S _{1 to} S _m receives the activation signal, the open / close state of the open / close unit to which the sensor is attached is detected, and the detection result is transmitted as a detection signal by the spread spectrum communication method. You. Centralized management device 100
When the spread signal including the detection signal is received by the antenna 10, the reception signal processing is performed by the surface acoustic wave convolver 50 in the receiver of the wireless control device 12. That is, in the surface acoustic wave convolver 50, while the spread signal received by the antenna 10 is input to the input electrode 54a, the reference signal composed of the despread code sequence is input to the input electrode 54b, and the grating electrode 60 and the semiconductor layer 58 Surface acoustic waves propagate between the input electrodes 54a and 54b via
A correlation signal between the spread signal and the reference signal is output from the output electrode 56a.
, And a spread signal is subjected to spread spectrum demodulation based on the correlation signal, whereby a detection signal is received. This detection signal is output to the security system control device 18.

Then, the security system control device 1
8, the open / close state of each open / close unit is output to the central processing unit 38 based on the received detection signal, and the central processing unit 3
By 8, the open / close state of each open / close unit is displayed on the large liquid crystal display 36. Next, a case where a resident unlocks or locks an electronic lock provided as a lock portion such as a window or a door using a wireless key possessed by the resident will be described. It is assumed that the resident inputs a command to open or lock the electronic lock to the wireless key while the electronic lock is unlocked.

In the wireless keys K _{1 to} K _n , when a command to open or lock the electronic lock is input by the resident, the identification code stored in advance in the wireless key is transmitted by the spread spectrum communication method. Is done. In the centralized management device 100, when the spread signal including the identification code is received by the antenna 10, the reception signal processing is performed by the surface acoustic wave convolver 50 in the receiver of the wireless control device 12. That is, in the surface acoustic wave convolver 50, the spread signal received by the antenna 10 is
a, a reference signal composed of a despread code string is input to the input electrode 54b, and the grating electrode 60,
Surface acoustic waves are applied to the input electrodes 54a, 54a through the semiconductor layer 58.
4b, a correlation signal between the spread signal and the reference signal is extracted from the output extraction electrode 56a, and the spread signal is spread-spectrum demodulated based on the correlation signal, thereby receiving the identification code. This identification code is output to the keyless entry system control device 14.

The identification code is read out from the memory 40 by the keyless entry system control unit 14, and the received identification code is compared with the read out identification code. A locking command is output to the electronic lock controller 16. Thus, the electronic lock driving device 20 is driven and controlled by the electronic lock control device 16 via the interface 28 so as to lock the electronic lock, and the electronic lock is locked.

When the resident inputs a command to open or lock the electronic lock while the electronic lock is unlocked, the electronic lock control device 16 opens the electronic lock. The drive of the electronic lock driving device 20 is controlled via the interface 28, and the electronic lock is unlocked. Also, the memory 40
Be used wireless key K ₁ ~K _n the identification code of the do not match the identification code is stored, since it is determined not to match the keyless entry system controller 14, an electronic lock is unlocked or locked Never.

Next, a case where the resident uses the centralized control device 100 to open or lock an electronic lock provided as a lock such as a window or a door will be described. It is assumed that the resident inputs a command to unlock or lock the electronic lock to the ten-key unit 34 while the electronic lock is unlocked. In the central management device 100, when a command to open or lock the electronic lock is input from the ten key unit 34 by the resident, the locking command is output to the electronic lock control device 16 by the central processing unit 38. Thus, the electronic lock driving device 20 is driven and controlled by the electronic lock control device 16 via the interface 28 so as to lock the electronic lock, and the electronic lock is locked.

When the resident inputs a command to open or lock the electronic lock in a state where the electronic lock is unlocked, the electronic lock control device 16 opens the electronic lock. The drive of the electronic lock driving device 20 is controlled via the interface 28, and the electronic lock is unlocked. Next, the resident
A case where a telephone call is performed by a cordless telephone using the centralized management device 100 will be described.

In the centralized management device 100, the user
When the cordless telephone is turned off-hook and a dial operation is input from the numeric keypad unit 34, the central processing unit 38 connects the cordless telephone control unit 30 to the public telephone line network 22 via the interface 28 so as to be able to talk. . As a result, the resident can make a call with a desired partner using the cordless telephone.

Thereafter, when the cordless telephone is turned on-hook by the resident, the cordless telephone control device 3
0 is disconnected from the public telephone network 22. next,
A case where a visitor or the like makes a call using the intercom 24 and a resident answers the call will be described. When a call is made by intercom 24 by a visitor or the like, central management device 100
Then, the central processing unit 38 displays that fact on the large liquid crystal display 36. Then, before the predetermined time elapses, the intercom 24
When a command to connect to the voice input / output device 3 is input from the numeric key unit 34,
2 and the interphone 24 are connected to be able to talk.

Thereafter, the intercom 24
When a command to interrupt the connection with the telephone is input from the numeric key unit 34, the voice input / output device 32 and the interphone 24
The connection with is interrupted. Next, a case will be described in which the resident checks the open / closed state of the opening / closing section such as the window or the door and the unlocked / locked state of the electronic lock on the display 26 of the intercom 24 when going out.

In the wireless keys K ₁ -K _n , when the resident inputs a command to display the open / closed state of the open / close section and the unlocked / locked state of the electronic lock on the display 26, the display command is spread spectrum. Sent by communication method. In the centralized management device 100, when the spread signal including the display command is received by the antenna 10, the reception signal processing is performed by the surface acoustic wave convolver 50 in the receiver of the wireless control device 12. That is, in the surface acoustic wave convolver 50, while the spread signal received by the antenna 10 is input to the input electrode 54a, the reference signal composed of the despread code sequence is input to the input electrode 54b, and the grating electrode 60 and the semiconductor layer 58 , A surface acoustic wave propagates between the input electrodes 54a and 54b, a correlation signal between the spread signal and the reference signal is extracted from the output extraction electrode 56a, and the spread signal is spread-spectrum demodulated based on the correlation signal. Receives a display command. This display command is sent to the central processing unit 38.
Is output to

Then, the central processing unit 38 displays on the display 26 the open / closed state of the open / close section and the unlocked / locked state of the electronic lock. For example, when one of the open / close sections is opened or one of the electronic locks is unlocked, the LED of the display 26 lights red for a predetermined time, and all of the open / close sections are closed. When all the locks or electronic locks are locked, the LE of the display 26 is displayed for a predetermined time.
D lights green.

As described above, in the present embodiment, the wireless control device 12, the interface 28, the cordless telephone control device 30, the voice input / output device 32, the numeric keypad unit 34, and the large liquid crystal display 36 are connected. provided as an integral, using the numeric keypad unit 34 and a large-sized liquid crystal display 36, the sensor S ₁ to S _m and notification control for notifying the closed state of the closing unit communicating through a wireless controller 12, wireless key K ₁ ~K _n and the wireless controller 12 unlocking or locking drives and controls the electronic lock communicating through a call connected control to connect to the public telephone network 22 to the cordless telephone via the interface 28, and interface Connection control for connecting the voice input / output device 32 and the interphone 24 so that they can communicate via the I did it.

Thus, the function of notifying the opening / closing state of the opening / closing section, the function of unlocking or locking the electronic lock, the function of talking with a cordless telephone, and the function of talking with the voice input / output device 32 and the intercom 24 are simply provided. Since it can be realized by one centralized management device 100, the convenience of the resident is achieved, and these functions can be collectively handled by using the ten-key unit 34 and the large-sized liquid crystal display 36. The integration does not add much complexity to the operation. Therefore, it is possible to improve the convenience of residents as compared with the conventional case,
Operation can be facilitated.

Further, in the present embodiment, the interface 28 can be connected to the intercom 24 having the display 26, and the central processing unit 38 can control the open / close state of the open / close unit and the unlocked / locked state of the electronic lock. Display 26
The control to display on is now concentrated. Thus, the resident can check the open / closed state of the opening / closing unit and the unlocked / locked state of the electronic lock while staying outside the house.
00, the convenience of the resident is further improved. Therefore, the convenience of the resident can be further improved.

Further, in the present embodiment, the radio control device 12 controls the wireless keys K ₁ -K _n via the antenna 10.
The communication with the sensors S _{1 to} S _m is performed by the spread spectrum communication method. Thus, between the wireless key K ₁ ~K _n and the radio control apparatus 12 for communicating identification code and display command that needs to be concealed from the third party, the confidentiality of the information provided by the spread spectrum communication Thereby, security can be improved as compared with the related art. In addition, between the sensors S _{1 to} S _m that need to perform multiplex communication and the wireless control device 12, the effect of noise caused by spread spectrum communication, which is less susceptible to noise, compared to the related art. And mutual interference can be prevented, and the communication scale can be expanded.

Further, in the present embodiment, the radio control device 12 has a receiver constituted by using the surface acoustic wave convolver 50. This makes it possible to arbitrarily change the spreading code sequence used for spread spectrum communication, thereby further increasing the confidentiality of information provided by spread spectrum communication, and by using spread spectrum communication, which is less susceptible to noise. The resulting properties can be further enhanced. Therefore, the security can be further improved, and the communication scale can be further expanded.

Further, in the present embodiment, the surface acoustic wave convolver 50 includes the input electrodes 54a and 54b and the interdigital output extraction electrode 56a having a plurality of rectangular plate-shaped protrusions.
And a rectangular plate-like semiconductor layer 58 and a plurality of rectangular plate-like grating electrodes 60 are provided on the piezoelectric substrate 52, and the input electrodes 54 a and 54 b are arranged so as to face each other. Is parallel to the propagation direction of the surface acoustic wave, the semiconductor layer 58 is disposed outside the propagation path of the surface acoustic wave, and the projection direction of the protruding piece 55a and the longitudinal direction of the grating electrode 60 are orthogonal to the propagation direction of the surface acoustic wave; Protruding piece 5
The grating electrode 60 is arranged inside the surface acoustic wave propagation path, and the output extraction electrode 56a is arranged outside the surface acoustic wave propagation path, so that 5a and the grating electrode 60 alternately span the semiconductor layer 58.

As a result, a small-sized and low-power-consumption receiver can be configured, so that the centralized management apparatus 100 has a small size and low power consumption. Further, in the present embodiment,
The surface acoustic wave convolver 50 includes a protruding piece 55a of the output extraction electrode 56a and the grating electrode 60 when viewed from the propagation direction.
Are alternately overlapped with each other to have a length of 15 times or less the wavelength of the surface acoustic wave.

As a result, a receiver having a smaller size and lower power consumption can be configured.
Are much smaller and consume less power. Further, in the present embodiment, the semiconductor layer 58 is configured by stacking the p-type semiconductor layer 58a and the n-type semiconductor layer 58b in the thickness direction, and the protruding piece 55a of the output extraction electrode 56a and the grating electrode 60 are formed. The semiconductor layer 58 was provided on the piezoelectric substrate 52 as a p-type semiconductor layer 58a serving as a bridged layer.

As a result, it is possible to configure a receiver having a smaller size and lower power consumption.
Are much smaller and consume less power. Further, in the present embodiment, the n-type semiconductor layer 58b is formed of InSb, In
The p-type semiconductor layer 58a is made of one of Ga _x Sb _1-x (0 <x <1) and InGa.
aAs _y Sb _1-y (0 <y ≦ 0.5).

As a result, it is possible to configure a receiver having a smaller size and lower power consumption.
Are much smaller and consume less power. Further, in the present embodiment, surface acoustic wave convolver 50 is configured such that buffer layer 59 containing Sb is provided between semiconductor layer 58 and piezoelectric substrate 52. As a result, the semiconductor layer 58 having good crystallinity is formed, and a small-sized and low-power-consumption receiver can be formed. Therefore, the centralized management apparatus 100 is further reduced in size and power consumption.

[0080] In the above embodiment, a security system controller 18 for notifying the closed state of the closing unit communicating through a sensor S ₁ to S _m and the wireless controller 12, wireless key K ₁ ~ a keyless entry system controller 14 to unlock or lock the electronic lock communicating through a K _n and the radio control apparatus 12, a security system controller 18 and a keyless entry by using the ten-key unit 34 and large-sized liquid crystal display 36 A central processing unit 38 for centrally controlling and connecting to the system control device 14 is provided, but the invention is not limited to this. The security system control device 18 and the keyless entry system control device 14 are not provided. Notification control, keyless entry system to be performed by the controller 18 A central processing unit that centrally performs drive control and connection control to be performed by the system control device 14 may be integrally provided.

With such a configuration, it is not necessary to provide the security system control device 18 and the keyless entry system control device 14, so that the centralized management device 100 can be made even smaller as compared with the configuration of the above embodiment. Become. Further, in the above-described embodiment, the ten-key unit 34 is provided as the input device, but is not limited thereto.
The input device may be provided integrally with the large-sized liquid crystal display 36 by using the large-sized liquid crystal display 36 as a touch panel. In such a case, the keys to be operated by the resident are displayed directly on the display, and the content of the display can be changed to an individual display for each resident, thereby improving the convenience of the resident. Can be done,
Operation can be facilitated.

In the above embodiment, the wireless control device 1
2 corresponds to the wireless communication means according to claim 1, 5 or 6, the voice input / output device 32 corresponds to the voice input / output means according to claim 1, and the numeric keypad unit 34 corresponds to the input means according to claim 1. The large-sized liquid crystal display 36 corresponds to the display means. Also, the wireless key K ₁ ~K _n corresponds to the key device of claim 1, 2 or 5, wherein the sensor S ₁ to S _m corresponds to the detecting device according to claim 1, 2 or 5, wherein .

The security system controller 18
The keyless entry system control device 14 and the electronic lock control device 16 correspond to the notification control device according to claim 2.
Corresponds to the electronic lock control device of the second aspect, and the central processing unit 38 corresponds to the central control means of the second or fourth aspect.

[0084]

As described above, according to the centralized management device of the first to eleventh aspects of the present invention, the function of notifying the open / close state of the open / close unit, the function of unlocking or locking the electronic lock, the telephone , And the function of talking between the voice input / output means and the intercom can be realized by a single centralized management device, so that the convenience is achieved and these functions are realized by using the input means and the display means. Functions can be handled together, so even if multiple devices are integrated,
The operation is not too complicated. Therefore, it is possible to improve the convenience as compared with the related art, and to obtain an effect that the operation can be facilitated.

Further, according to the centralized management device of the third aspect of the present invention, there is no need to provide a notification control device and an electronic lock control device. The effect that the management device is further reduced can be obtained. Furthermore, according to the centralized management device of the fourth aspect of the present invention, it is possible to confirm the open / closed state of the opening / closing unit and the unlocked / locked state of the electronic lock while being away from the centralized management device. Since such functions can be realized by a single centralized management device, convenience is further improved. Therefore, the effect that the convenience can be further improved can be obtained.

Further, according to the centralized management device of the fifth aspect of the present invention, a key device for communicating an identification code and a display command which need to be kept secret from a third party and a wireless communication means. Therefore, the security of information provided by spread spectrum communication can improve security compared to the related art, and noise caused by noise between a detection device that needs to perform multiplex communication and wireless communication means can be improved. Due to the characteristics of the spread spectrum communication, which is hardly affected, it is possible to prevent the influence of noise and mutual interference as compared with the related art, and it is also possible to increase the communication scale.

Further, according to the centralized management apparatus of the sixth aspect of the present invention, since the spread code sequence used for spread spectrum communication can be changed arbitrarily, the confidentiality of information brought by spread spectrum communication can be reduced. It is possible to further enhance the characteristics provided by spread spectrum communication, which is less susceptible to noise. Therefore, the security can be further improved, and the communication scale can be further expanded.

Further, according to the centralized management device of the present invention, a small-sized and low-power-consumption receiver can be configured, so that the centralized-management device has a small size and low power consumption. Is also obtained. Further, according to the centralized management device according to the present invention, it is possible to configure a receiver having a smaller size and lower power consumption, so that the centralized management device is further reduced in size and power consumption. Is also obtained.

Further, according to the centralized control device of the ninth aspect of the present invention, it is possible to configure a receiver having a smaller size and lower power consumption, so that the centralized control device can be further reduced in size and power consumption. The effect of becoming is also obtained. Further, according to the centralized management device according to the tenth aspect of the present invention, it is possible to configure a receiver having a smaller size and lower power consumption, so that the centralized management device is further reduced in size and power consumption. Is also obtained.

Further, according to the centralized control device of the present invention, a semiconductor layer having good crystallinity is formed, and a small-sized and low-power-consumption receiver can be formed. The effect that the centralized management device is further reduced in size and power consumption can be obtained.

[Brief description of the drawings]

FIG. 1 is a block diagram showing a configuration of a centralized management device according to the present invention.

FIG. 2 is a perspective view of the surface acoustic wave convolver 50.

FIG. 3 is a plan view of the surface acoustic wave convolver 50. FIG.

FIG. 4 is an enlarged perspective view of a semiconductor layer 58;

[Explanation of symbols]

REFERENCE SIGNS LIST 12 wireless control device 14 keyless entry system control device 16 electronic lock control device 18 security system control device 20 electronic lock drive device 24 intercom 26 display device 28 interface 30 cordless telephone control device 32 voice input / output device 34 numeric keypad unit 36 large liquid crystal display 38 central processing unit S ₁ to S _m sensor K ₁ ~K _n wireless key 50 surface acoustic wave convolver 52 piezoelectric substrate 54a, 54b input electrode 56a output extraction electrode 56b earth extraction electrode 58 semiconductor layer 60 grating electrodes

Claims (11)

[Claims] 1. An apparatus for integrating a plurality of devices and centrally managing them, comprising an interface capable of connecting a wireless communication means for performing wireless communication and an external device including an electronic lock, a telephone line, and an intercom. , A telephone, a voice input / output unit for performing input / output by voice, an input unit for inputting a user's operation, and a display unit, and an open / close operation using the input unit and the display unit. Notification control for notifying the open / closed state of the opening / closing unit by communicating with the detection device for detecting the open / closed state of the unit and the electronic lock by communicating with the key device and the wireless communication unit via the wireless communication unit Drive control for unlocking or locking the telephone, connection control for connecting the telephone to the telephone line via the interface so as to be able to talk, and voice input / output means via the interface. A centralized management device for centrally performing connection control for connecting the telephone and the intercom so that they can communicate with each other. 2. The communication device according to claim 1, wherein the detection device communicates with the detection device via the wireless communication unit to notify an open / close state of the opening / closing unit, the key device, and the wireless communication unit. An electronic lock control device that opens and locks the electronic lock by performing communication, and the control of the notification control device and the electronic lock control device and the connection control are centralized using the input unit and the display unit. And a centralized control unit for performing the centralized control. 3. The centralized management apparatus according to claim 1, further comprising a centralized control unit that centrally performs the notification control, the drive control, and the connection control. 4. The interface according to claim 2, wherein the interface is connectable to an intercom having a display, and the central control means is configured to open / close the opening / closing unit and open the electronic lock. A centralized management device wherein control for displaying a locked or locked state on the display device is performed centrally. 5. The communication according to claim 1, wherein communication between the detection device and the wireless communication unit and communication between the key device and the wireless communication unit are performed by a spread spectrum communication method. A centralized management device characterized by performing. 6. The centralized management device according to claim 5, wherein the wireless communication unit includes a receiver configured using a surface acoustic wave convolver. 7. The surface acoustic wave convolver according to claim 6, wherein the surface acoustic wave convolver comprises: two input electrodes; an IDT-shaped output extraction electrode having a plurality of rectangular plate-shaped protrusions; a rectangular plate-shaped semiconductor layer; A plurality of plate-like grating electrodes are provided on a piezoelectric substrate, and the input electrodes are arranged to face each other, and a longitudinal direction of the semiconductor layer is parallel to a propagation direction of a surface acoustic wave propagating between the input electrodes. The semiconductor layer is disposed outside the propagation path of the surface acoustic wave, and the projecting direction of the projecting piece and the longitudinal direction of the grating electrode are orthogonal to the propagation direction, and the plurality of projecting pieces and the plurality of grating electrodes are arranged. The plurality of grating electrodes are arranged in the propagation path, and the output extraction electrodes are arranged outside the propagation path, such that the grating electrodes alternately span the semiconductor layer. Medium management device. 8. The surface acoustic wave convolver according to claim 7, wherein a length of a portion where the projecting piece of the output extraction electrode and the grating electrode alternately overlap each other when viewed from the propagation direction has a wavelength of the surface acoustic wave. Centralized management device characterized by being 15 times or less. 9. The semiconductor device according to claim 7, wherein the semiconductor layer is formed by laminating a p-type semiconductor layer and an n-type semiconductor layer in a thickness direction, and the projecting piece of the output extraction electrode and the grating A centralized management device, wherein a layer over which an electrode is provided is the p-type semiconductor layer, and the semiconductor layer is provided on the piezoelectric substrate. 10. The semiconductor device according to claim 9, wherein the n-type semiconductor layer is made of InSb, InGa _x Sb _1-x (0
<X <1) and InGa, and the p-type semiconductor layer is made of GaSb and GaAs _y Sb _1-y (0 <y ≦
0.5) A centralized management device comprising: 11. The centralized control according to claim 7, wherein the surface acoustic wave convolver is provided with a buffer layer containing Sb between the semiconductor layer and the piezoelectric substrate. apparatus.