WO2002021456A1

WO2002021456A1 - Device and method for controlling and authorising access to a display case

Info

Publication number: WO2002021456A1
Application number: PCT/FR2001/002760
Authority: WO
Inventors: Jean Lefebvre
Original assignee: Blr S.A.
Priority date: 2000-09-05
Filing date: 2001-09-05
Publication date: 2002-03-14
Also published as: EP1317739A1; AU2001287811A1; FR2813515A1; FR2813515B1

Abstract

The invention concerns a method and a device for controlling and authorising access to at least a display case comprising means controlling (1) a display case (2) access whereto is authorised by a central unit (3). The device and the method are applicable go the jewellery shops, exhibitions and museums.

Description

Device and method for controlling and authorizing access to an exhibition window

Technical sector of the invention:

The present invention relates to the technical sector of display cases for jewelers, museums or collectors.

Prior art:

There are known ordinary display cases for jewelers who present the jewelry on display stands. Every evening and morning, even every noon, the jewelers remove and put their jewelry back in the window when their stores are closed, which requires numerous manipulations of the jewelry.

These operations also require time to remove the latter from the display cases, place them in an (armored) chest and then put them back in the display case when the store opens.

In addition, the jewelry store usually has a single secure safe containing all the jewelry. If a thief manages to break into the jewelry and open the trunk, the loss is significant for the jeweler.

Furthermore, systems are known in which the display cases are opened automatically when the jeweler inserts a badge in the display case, which establishes physical contact between the badge and the display cases.

The disadvantage of this technique is that the jeweler cannot open or close several windows at the same time and if he loses his badge, he is forced to change all the locks of the windows operating with this badge. There is therefore an important and recognized need for a device and a method allowing a jeweler to control access to at least one display case with authorization of this access by means of a central unit. The device and the method also allow the device to be locked.

Summary of the invention:

Thus, the object of the present invention is to implement a device and a method for controlling access to at least one exhibition showcase, with authorization of this access by a central unit.

The term “exhibition display case” is understood here to mean the assembly comprising a window covering, at least one window, and at least one jewelry display. The display case can also include at least one "retractable" safety box, located below the jewelry display.

By "retractable" or "retractable" is meant here that a jewelry display can descend inside a security box whose cover closes on said box and that it rises after opening the cover.

Detailed description of the invention:

The invention relates to a device for controlling and authorizing access to at least one showcase comprising:

at least one means for controlling an action, said means being carried by a user and comprising a user code, and information A (user code, action) which is transmitted from said means to at least the display case 2 to be actuated, at least one display case 2 comprising a means 51 for receiving information A, for sending 55 information B (user code, action, showcase address) to a central unit, and for receiving 56 information C, hereinafter called "reception-emission-reception means" 5, said means comprising a showcase address,

a central unit 3 comprising a means for receiving information B (window code, user code, action) of said window, and authorizing the action coming from said control means, and a means for transmitting information C (action validation / user code / showcase address) to the means for receiving information C, from said showcase corresponding to the showcase address, so that the action ordered is carried out at said showcase.

The invention also relates to the method of ordering and authorizing access to at least one display case.

By “reception-emission-reception means 5” of the display case 2, it is meant here that the means 5 can receive information A from the action control means then transmit information B to the central unit and receive information C from this same unit.

It is also the case where the means 5 can send information D of shock detection, without receiving information beforehand, to the central unit and receive information E alarm (closing windows; possibly lowering jewelry displays in the safety boxes; locking of the motor (s) control means of this same unit.

It is also the case where the means 5 can receive other information from the central unit without receiving or transmitting other information beforehand. This information is, for example, information E of alarm from the central unit, without first transmitting information D of shock detection or information of unlocking of the control means or information of closing the windows and locking of the means of window motor control. The action control means comprises a first means for selecting the action to be carried out on a display case, this selection being carried out by a user and the action being chosen from the complete opening or closing of the display case, or still stopping the display case when opening or closing it, and a second means for selecting a user code which is selected from a number of possible codes.

This code will be entered in the control means during its manufacture. It allows you to customize the control means, which is worn by a user. Thus, each user carries a control means provided with a user code.

The display case to be actuated, which is chosen by the user, comprises means for receiving (information A), transmitting (information B) and receiving (information C) hereinafter called " reception-emission-reception means "comprising an identity address, which is manually set when this means is installed.

The showcase reception-transmission-reception means receives information A from the control means. Said reception-emission-reception means also comprises a decoding means making it possible to decode the information A. At the output of the decoding means, the decoded information is sent in the form of a signal to a means for recognizing the information A, which is located in the receiving - transmitting - receiving means.

The means of reception - emission - reception of the showcase also comprises a means of recognizing the signal of the user code and the commanded action.

The means of reception-emission-reception of the shop window also comprises a means of positioning the address of the shop window. Each information sent from a showcase to the central unit includes the address of the showcase allowing its identification and its origin by said central unit. Thus, the address of said window is entered in information A (user code, action), so as to form information B (showcase address, user code, action).

Information B (address window, user code, action) is transmitted from the transmission means of the window to the central unit, when there is recognition of the signal of the user code and of the action to be carried out at the level of the means of recognition of the showcase. If there is no recognition of the signal, information B is transmitted to the central unit which will refuse to validate information B and will not return information C. Thus, the action will not have been carried out .

The means of reception-emission-reception of the showcase also comprises means for controlling at least one motor. In the case where the exhibition showcase does not include “retractable” safety boxes, the reception-emission-reception means 5 of the showcase 2 comprises a means 57 for controlling a motor making it possible to control the opening, closing or stopping the window during these two operations, that is to say raising or lowering the windows.

In the case where the exhibition showcase comprises at least one “retractable” security box, the reception-emission-reception means 5 of the showcase 2 comprises a control means 57 of two motors: a first motor, hereinafter called after "window motor" which controls the opening, closing or stopping of the window during these two operations, that is to say raising or lowering the windows. The control means receives the action to be performed in the form of a signal and a second motor, hereinafter called “box motor” makes it possible to control the raising or lowering of the displays in the safety boxes.

The reception-transmission-reception means also comprises a means for locking the control means of at least one motor. This locking means blocks the motor actuating the opening / closing / stopping of the panes, and possibly the motor actuating the raising / lowering of the displays in the security boxes in the case where the exhibition window includes at least one security box. retractable. In operation, in the case where the display case includes at least one retractable safety box and that it receives, for example, alarm information E (closing of the windows; descent of the displays in the safety boxes; locking of the engine control means) from the central unit, it receives the order to close its windows (corresponding to the rising of the windows if some are open) by means of the first motor, to lower the jewelry display into a box by means of the second motor, and to lock the motor control means (which cuts the supply to the two motors and thus prevents their operation).

For each showcase, this information E is received by the showcase reception means, sent to the showcase recognition means and transmitted to the control means of at least one motor, to actuate the closing of the showcases, the descent of the display stands of jewelry in the safety boxes. Once the windows are closed and the boxes lowered, the engine control locking means is actuated.

Preferably, the locking means is a switch. When the locking means is actuated, the switch is in the open position, which blocks the operation of the motor actuating the closing / opening / stopping (corresponding to the raising / lowering of the windows) and that activating the lowering / raising of the displays in their safety boxes.

The means of reception-emission-reception of the showcase also comprises a means of storage of data received by the central unit, such as the insertion of a new user code to be stored, the deletion of a user code.

The central unit comprises means for receiving at least one piece of information B (showcase address, user code, action) coming from the showcase corresponding to said identity address. This information B is transmitted by means of recognition of the information of said unit. The recognition and validation of information B by means of recognition of the unit delivers _. information C (validation of the action / user code / showcase address) which is transmitted by means of transmission 73 of said unit 3.

The central unit also includes a means of transmitting information C to said display case corresponding to the display address contained in the information C.

In a particular embodiment, the central unit comprises a storage means 76, making it possible to give the history of the actions carried out on all the windows and over a determined period of time. The data thus memorized are the date, the time, the user code, the action performed and the window address. For example, it is possible to know at the date x and at the time y, the action carried out on the display case whose address is y, and controlled by the user t.

In a preferred embodiment, the central unit is a microcontroller connected to a computer by a wired link.

The central unit includes means for receiving and storing data received by the computer connected to the central unit such as the insertion of a new user code to be stored, the deletion of a user code, the number of windows to be actuated, counting the number of windows open at the same time, an order to close the windows and lock the control means of the window motors, or an order to close the windows, to lower the displays in the boxes of security and locking of the means for controlling the motors of the windows and of the boxes in the case where the display case comprises at least one retractable security box, an order to unlock the locking means, an interrogation of the user codes, a protection of access to the computer by verifying a secret code ... These data will be entered manually from the jewelry store's computer and transmitted to the unit é central.

In a particular embodiment, the central unit comprises means for counting the number of panes opened at the same time; if the number authorized for open windows is exceeded, the central unit emits a signal (alarm information E) to the windows, which orders the closing of the windows, as well as the locking of each means of controlling the window motor.

If the exhibition window has at least one retractable security box, the central unit emits a signal (alarm information E) to the windows which orders the windows to be closed, the displays to be lowered into the security boxes as well as the locking of each control means of the window and box motor.

In a particular embodiment, the central unit also includes an internal clock, which sends information F to the windows, indicating to them that they lock the control means of at least one motor for a determined time slot.

This is the means for controlling the window opening / closing motor in the case where the display case does not have safety boxes and the means for controlling the first window opening / closing motor and the second window motor. up / down displays in the boxes if the display case has at least one retractable security box.

This locking information F takes place when all the windows 21 of the display cases 2 are closed.

Thus, if the clock is programmed from 11 p.m. to 7 a.m., the central unit emits a signal for locking the engine control means at 11 p.m., at each showcase via showcase addresses. The window reception means receives the information F to lock the engine control means, until 7 am the following day.

Thus, if a third party enters the jewelry after 23 hours and asks the central unit to order the unlocking of the control means of the window motor and the box motor, it will not be possible to perform this operation unlocking before 7 am the next day, the clock blocking the unlocking request. In a particular embodiment, each display case is formed by a window covering, two windows made of a material resistant to impact and attack, which are located in the upper part of the window.

Behind each window is a jewelry display.

In a preferred embodiment, the display case includes at least one retractable box located in its lower part. To a box corresponds a display which is adapted to descend inside the box 23 and where the cover 25 of the box closes on the top of the display 22 when the display is lowered, actuated by the motor of the display case, so as to form a safety box 23 containing the display 22.

5 When the exhibition window is opened, the glass descends between the window covering and the wall of the safety box. Similarly, the rise of the glass corresponds to the closing of the display windows.

In a particular embodiment, the display cases include position sensors or shock detectors adapted to detect a shock effected on these windows. The shock results in information D (shocks; address window) which circulates until the means of recognition of the window, and is then transmitted to the central unit.

The advantage of the device according to the invention is that each display is contained in a safety box, which moreover does not need to be made of shielding material. Indeed, in a traditional jewelry store, the thief will try to access the unique trunk of the jewelry store, comprising all the jewelry to be sold in the store, while the device of the invention has at least one box comprising jewelry, for example. showcase. Thus, the higher the number of display cases, the greater the number of boxes to be opened. As a result, the burglar will not have enough time to open all the boxes before the police arrive.

In addition, he must first break the glass before accessing the box containing the jewelry. We therefore understand that if we use for the windows, materials very resistant to shocks and aggressions like SP15 ™ material from SAINT-GOBAIN VITRAGE or similar, in order to delay the action of thieves, it is not necessary that the box is made of shielding material; in the event that the burglar manages to break the glass, he will not have time to pierce a box, before the arrival of the police.

Thus, it is possible to use for the boxes, resistant materials such as sheet metal, without using more expensive shielding materials.

The device according to the invention can also be equipped with a surveillance system, such as a camera. If we have on the one hand, the showcases, the central unit and the surveillance camera in one room and on the other hand the jewelry shop computer and the surveillance screen connected to the camera in another room , the jeweler can manually request the closing of the windows, the descent of the displays in the safety boxes and the locking of the control means in the event of burglary of the display cases.

The invention also relates to the method of ordering and authorizing access to at least one display case 2 comprising the steps of:

- control of at least one action by a user, who carries means 1 for controlling an action, said means comprising a user code, transmission of information A (user code, action) coming from said at least one control means 1 of an action, to at least the display case 2 to be actuated,

said showcase 2 comprising a showcase address and a means 51 for receiving information A, for sending 55 information B (user code, action, showcase address), from the showcase 2 to a central unit 3 and of reception 56 of information C (action validation / user code / showcase address) by the central unit 3, this means being called hereinafter "reception-emission-reception means" 5,

- reception of information A by the reception means 51 of said display case,

-broadcasting of information B (user code, action, showcase address), from the showcase 2 to the central unit 3;

reception of information B (display code, user code, action) of said display 2 by the central unit 3 comprising a means for receiving information B,

- authorization of the action from said control means 1, by the central unit 3

transmission of information C (action validation / user code / showcase address) by the transmission means from the central unit 3 to the means for receiving information C, from said showcase corresponding to the showcase address, so that the action ordered is carried out at said window.

The step of ordering at least one action comprises a first step of selecting the action to be carried out on a display case, this first selection being carried out by a user and the action being chosen from among the complete opening or closing of the showcase, or the stop of the showcase when opening or closing it, as well as a second step for selecting a user code which is selected from a fixed number of codes.

The user chooses a display case to be actuated, which comprises a means of reception (of information A), of emission (of information B) and of reception (of information C) hereinafter called "means of reception-emission-reception "comprising an identity address, which is manually set when this means is installed.

The information A coming from the control means 1 is received by the reception means 51 of the display case to be actuated.

The method further comprises a step of decoding the information A (user code, action) by a decoding means 52 disposed in said reception-transmission-reception means of the display case 2, so as to form decoded information A. The decoding step takes place after the reception of the information A by the reception means 51.

It then comprises a step of transmitting the decoded information A, in the form of a signal, from the output of the decoding means 52 to a means of recognizing the information A, which is located in the reception means -emission- reception.

Said method further comprises a step of recognizing the signal of the user code and of the action commanded, by means of recognition 53 of the signal, which is contained in the means of reception - emission - reception 5 of the display case 2. Said method also includes a step of positioning the address of the showcase in the information A (user code, action), so as to form the information B (address of the showcase, user code, action), this step being carried out by a means 54 for positioning the address of the display case, included in the reception-transmission-reception means 5 of the display case 2.

Each information sent from a display case 2 to the central unit 3 includes the address of the display case allowing its identification and its provenance by said central unit 3. Thus, the address of said display case is entered in information A (code user, action), so as to form information B (showcase address, user code, action).

The step for transmitting information B (display address, user code, action) is carried out from the transmission channel 55 from the display window to the central unit 3, when there is recognition of the signal from the user code. and of the action to be carried out at the level of the recognition means 53 of the display case.

If there is no recognition of the signal, the information B is transmitted to the central unit 3 which will refuse to validate the information B and will not return information C. Thus, the action will not be performed.

Said method further comprises a step of controlling at least one motor, by means of controlling at least one motor included in said means of reception-emission-reception 5 of the display case.

In the case where the method comprises at least one step of "retraction" of safety boxes located in the display cases 2, it also has a step of controlling two motors, by means of a control means 57 for two motors, at said reception-emission-reception means 5 of the display case 2.

Said method comprises a step of "retraction" of at least one safety box placed in an exhibition display case 2, each of which corresponds to a display of jewelry which consists in bringing down a jewelry display, inside the safety box provided in the lower part of a display case 2, the cover of the box coming to close on it and, which consists in raising this same display after opening the lid.

In the case where the method does not include a step of "retracting" safety boxes, it also has a step of controlling at least one motor making it possible to control the opening, closing or stopping of the window during these two operations, that is to say the raising or lowering of the windows; this control step being carried out using a motor control means 57, contained in said reception-emission-reception means 5 of the display case 2.

The control of the two motors consists in that the action to be carried out on the display case 2 is received, in the form of a signal, by a first motor, hereinafter called "window motor" in order to control the opening, closing or stopping of the window during these two operations, that is to say raising or lowering of the windows, and by a second motor, hereinafter called "box motor" making it possible to control the raising or lowering of displays in the safety boxes.

Said method further comprises a step of locking the control of at least one motor, by means of a locking means 58 of the control means of at least one motor, disposed in said reception-emission means. reception 5.

This locking blocks the motor control actuating the opening / closing / stopping of the windows, and possibly the motor control actuating the raising / lowering of the displays in the safety boxes in the case where the method comprises at least one step of ""securityboxes". The method further includes an "alarm" step which consists of

- the transmission of information E (closing of the windows, descent of the jewelry displays in the security boxes if the process includes a "retraction" step, locking of the controls of the window motors and of the box motors if the process includes a "retraction" step) by the central unit 3, towards at least one display case 2,

the reception of this information E, for each display case, by the reception means 56 of said display case, then

- sending this information E by means of recognition 53 of the display case and

- its transmission to the control means 57 of at least one motor, to activate the closing of the display cases, the descent of the jewelry displays in the safety boxes if the method includes a "retraction" step, and the locking of the controls window and box motors if the process includes a "retraction" step once the windows are closed and the boxes are lowered.

Preferably, the locking is carried out by a switch 58, which in the open position, blocks the operation of the motor actuating the closing / opening / stopping (corresponding to the raising / lowering of the windows) and that of the motor actuating the lowering / raising of the displays in their safety boxes, in the case of a "retraction" of the safety boxes.

Said method further comprises a step of storing data received by the central unit 3 such as the insertion of a new user code to be stored, the deletion of a user code, this data being stored at the level of the reception means. transmission-reception 5 of the display case 2, by means of storage of data received by the central unit. Said method further comprises a step of reception by the central unit 3 at its reception means 71, of at least one piece of information B (window address, user code, action) coming from window 2 corresponding to said identity address. .

This reception is followed by a transmission of the information B, from the reception means 71 of the central unit 3 to the recognition means 72 of the information from said unit.

The method also includes a step of recognizing and validating this information B by the recognition means 72 of the central unit 3, so as to deliver information C (validation of the action / user code / showcase address), transmitted to a transmission means 73 of said unit 3.

Said method further comprises a step of transmitting information C by the means 73 for transmitting information C (validation of the action / user code / window address) provided in the central unit 3, towards said display case 2 corresponding to the display case address contained in information C.

Said method further comprises a step of receiving information C by said display case 2 corresponding to the display case address contained in information C, at its reception means 56 provided in the reception-emission-reception means 5 of said window.

Then, it comprises a step of transmitting the information C to the recognition means 53 of the reception-transmission-reception means 5 of said display case, then a transmission of the information C from the recognition means 53 to the control means 57 of the motors, by means of the locking means 58 provided in said reception-transmission-reception means 5, for carrying out the action on the display case 2. In a particular embodiment, the method further comprises a step of memorizing the data, making it possible to give the history of the actions carried out on all the showcases and over a determined period of time, thanks to a memorization means 76 provided in said central unit 3. The data thus stored are the date, the time, the user code, the action performed and the display address. For example, it is possible to know at the date x and at the time y, the action carried out on the display case whose address is y, and controlled by the user t.

Said method also includes a step of receiving and storing the data received by a computer 4 connected to the central unit 3 such as the insertion of a new user code to be stored, the deletion of a user code, the number of windows to be actuated, counting the number of windows open at the same time, an order to close the windows and lock the control means of the window motors, or an order to close the windows, to lower the displays in the safety boxes and for locking the control means for the motors of the windows and the boxes in the case where the display case comprises at least one retractable security box, an order to unlock the locking means, an interrogation of the user codes, protection of access to the computer by verifying a secret code ... this step is carried out by reception means 74 and storage means

75 of the data provided in said central unit 3.

These data will be entered manually from the jewelry computer and transmitted to the central unit.

In a particular embodiment, said method comprises a step of counting the number of panes open at the same time, which is carried out by means of counting the number of panes, provided in said central unit 3; if the authorized number of open windows is exceeded, a signal (alarm information E) is sent by the central unit 3 to the windows 2, which orders the windows 2 to be closed, as well as the locking of each control means of the window motor. If the method according to the invention comprises at least one step of "retracting" the safety boxes, a signal (alarm information E) sent by the central unit 3 to the windows 2, corresponds to the closing of the windows, the lowering of the displays in the safety boxes as well as the locking of each means of controlling the window motor and the boxes.

In a particular embodiment, the method also includes a step of transmitting and transmitting locking information F by the internal clock of the central unit 3, to the windows, indicating to them to lock on a determined time slot , the control of at least one motor.

This is the control of the window opening / closing motor in the case where the method does not include a step of "retraction" of the safety boxes and the control of the first window opening / closing motor. windows as well as the second up / down motor for the displays in the boxes if the method includes at least one step of retracting the safety boxes.

Thus, if the clock is programmed from 11 p.m. to 7 a.m., a signal for locking the motor controls at 11 p.m. will be sent by the central unit 3, and transmitted to each showcase via the showcase addresses. Information F will be received by the window reception means, so as to lock the engine control means, until 7 am the following day.

Thus, if a third party enters the jewelry store after 11 p.m. and asks the central unit to order the unlocking of the window motor and box motor controls, it will not be possible to perform this unlocking operation before 7 am the next day, the horioge blocking the unlocking request. In a particular embodiment, said method comprises a step of detecting shocks carried out on the exhibition windows by suitable position sensors or shock detectors, which results in information D (shocks; address of the shop window) which circulates up to 'by means of recognition of the display case, and is then transmitted to the central unit 3.

The detection is followed by the transmission of the information D from the transmission means 55 provided in said reception-emission-reception means 5 of said display case 2, to the central unit 3.

The transmission of information D is followed by the reception of this information by the central unit 3, at its reception means 71, the transmission of this information D to the recognition means 72 of the central unit 3.

Following this shock detection, the central unit 3 then emits, by its emission means 73, an alarm signal E to all the showcases 2 corresponding to the closing of the windows, descent of the jewelry displays if the process includes a "retraction" step, followed by the locking of the window motor and box motor controls if the process includes a "retraction" step.

In the event of aggression or burglary of the display windows, the jeweler may manually request the closing of the windows, the descent of the displays in the safety boxes and the locking of the engine controls.

Other characteristics and advantages of the invention will be better understood on reading the description which follows, and with reference to the attached drawings below in which:

FIG. 1 represents the overall device according to the invention,

FIG. 2 represents an exhibition display case according to the invention, FIG. 3 represents the operating diagram of the means of reception-emission-reception of a shop window,

FIG. 4 represents the operating diagram of the central unit.

In a preferred embodiment, the device according to the invention comprises 200 display cases 2 and six users, corresponding to six remote controls 1.

In FIG. 1, the device is equipped with a central unit 3 and a computer 4 of the jewelry store connected by a wired link to the central unit 3.

The control means is a remote control 1 worn by the user. The number of possible user codes is 255.

The first user has a remote control 1 comprising the user code 10. This code is entered during the manufacture of the remote control. It is also stored in the memory of the central unit 3, after having been programmed by the computer 4 of the jewelry store.

This first user chooses to open the exhibition window 2 comprising the address window 24.

The second user has the remote control comprising the code 100 and chooses to half open the display case 2 'comprising the display case address 244.

Firstly, the first user directs his remote control 1 towards the display case 2 that he wishes to open. This corresponds to the transmission of information A (user code = 10; acύon = open) from the remote control 1 to the display case 2 to be opened.

The transmission of information A from the remote control to this display case is carried out by an infrared link and preferably, within a radius of between 30 and 50 centimeters. In FIG. 2, the display case 2 which receives the information A comprises two display windows 21 formed from a material SP15 ™ from SAINT-GOBAIN VITRAGE or the like. Behind each of these panes 21, there is exposed a display 22 showing jewelry as well as a safety box 23 located under the display 22.

The showcase 2 also includes a covering 24 of the showcase. The display 21 is adapted to descend inside a security box 23. During the descent, the cover 25 of the box closes on the display 23.

The display case 2 comprises a window motor and a box motor.

The display case 2 comprises an electronic card 5 which represents the reception-emission-reception means 5 of the display case. Preferably, the card 5 is placed at the top right of the exhibition window and is hidden by the covering 24 of the window. The electronic card 5 comprises a receiver 51 of information coming from the remote control 1, as well as a transmitter 55 of information from the card 5 to the central unit 3 and a receiver 56 of information coming from the central unit 3 .

FIG. 3 illustrates the operating diagram of the card 5. The information A is received by the card 5 at the infrared receiver 51, then it is decoded by the decoding means 52. The latter sends the decoded information A under form of a signal, towards the recognition means 53 of the card.

The recognition means 53 will recognize the user code and the commanded action in the form of a signal coming from the decoding means 52.

If the recognition means validates this signal, the positioning means 54 of the address of the display case writes the address of the display case (24) to the information A, so as to generate information B (user code = 10; action to open; window address = 24). Information B is then transmitted by the card 5 by means of a high frequency transmitter 55, to the central unit 3.

The transmission (and reception) of information B is carried out by radio frequency (high frequency) link within a radius of 45 meters maximum. Due to the use of radio frequencies, the central unit 3 is located in the same room as all of the display cases and the remote controls.

The central unit 3 is a microcontroller connected to a computer 4 by a wired link. Preferably, the central processing unit 3 and the computer 4 are located in two different rooms.

In FIG. 4, the central unit 3 comprises a means 71 for receiving high frequency information B (user code = 10; action = open; showcase address = 24) coming from showcase 2 corresponding to said identity address. This information B is transmitted to the recognition means 72 of the information of the central unit 3.

The recognition of the information B by the recognition means 72 delivers information C (validation of the action / user code / showcase address) which validates the information B and authorizes the showcase 2 whose showcase address is 24, at perform the action open.

After recognition, this information C is transmitted to a high frequency transmitter 73 by radio frequency link (high frequency), which transmits information C from the central unit 3 to the display case 2 comprising the display case address 24.

The information C is then received by the showcase 2, the showcase address of which is 24 by means of the high frequency receiver 56, by radio frequency (high frequency) link.

Upon receipt, the information C is transmitted to the recognition means 53 of the window card 5, this means 53 transmitting to the control means 57 of the motors, the validated action to be performed on the window 21. Thus, the means of command 57 receives authorization to open the window. The window motor is therefore actuated, so as to lower said window 21.

In a particular embodiment, the display case 2 may include an indicator light 25 which lights up when the window 21 is open (see FIG. 2).

Once the action (= open) of the first user has been processed, the central processing unit 3 can process the action (= half open) of the second user on the display case 2 '.

In another preferred embodiment, the display case 2 comprises position sensors or shock detectors. When a shock is made on a window 21 of an exhibition window 2, the shock is translated in the form of information which circulates as far as the recognition means 53 of the card 5. The positioning means 54 of the card inscribes the address of the showcase in the information, so as to generate information D (shock; showcase address) comprising the address of the showcase which has been shocked.

Then, this information D is transmitted from the card 5 to the central unit 3 by means of the high frequency transmitter 55 of the card 5, by radio frequency link (high frequency) and reaches the recognition means 72 of the central unit. 3, which sends an alarm signal E to all the showcases 2 corresponding to the closing of all the windows, the descent of the jewelry displays in the safety boxes followed by a locking of the motor control means 57 windows and boxes.

In a particular embodiment, the locking means is a switch 58 (see FIG. 3).

Thus, all the open panes close, which corresponds to the rise of the panes, the display units descend into their safety box and the switch 58 opens, which blocks the operation of the window motors and of the box motors. Preferably, if the alarm is triggered, the whole system is blocked for a determined time and fixed by the computer 4 of the jewelry store. Preferably, the blocking time is 15 minutes. During this period, it is impossible to trigger the unlocking order of the motor control means (corresponding to the closing of the switch 58). The windows 21 remain closed, the safety boxes 23 containing the display 22 of closed jewelry.

After this time, it will then be possible to trigger the unlocking order of the engine control means 57, at the computer 4 of the jewelry store. The order is transmitted from the computer 4 to the central unit 3 and then from the unit 3 to the various display windows 2.

In a preferred embodiment, the central unit 3 also includes an internal clock 75, which sends information F to the windows by radio frequency (high frequency) link, telling them to lock the control means 57 of the opening / closing motor. of the windows and of the motor for raising / lowering the displays in / out of the boxes over a determined time period.

When the jewelry store is closed, the jeweler orders all the windows to be closed, using a code entered on the computer 4 of the jewelry store, which results in information H (window closing, descent display stands in the safety boxes; showcase address) which is transmitted from the computer 4 of the jewelry store to the central unit 3 by wire connection, and received at said unit 3 by the reception means 74.

The reception means 74 transmit the information H to the recognition means 72, which recognizes the said information and transmits it to the high frequency transmitter 73 of the unit 3. The latter transmits the information by radio frequency (high frequency) link H to the display windows 2 corresponding to the window addresses, by radio frequency (high frequency) link. The display cases 2 receive the information H at their reception means 56 and transmit it to the recognition means 53.

If the recognition means 53 recognizes and validates the window address and the actions (= closing the windows; lowering the displays in the boxes security), the recognition means 53 transmits the actions to be carried out by means of control of the window motors and the boxes. Thus, the windows are closed and the displays are lowered into the safety boxes.

If the window is already closed, the window motor is not activated.

If there is no recognition of the storefront address and / or of the actions, the recognition means 53 of the electronic card 5 does not recognize the information H. Nothing happens at the level of the card 5.

In the absence of "retraction", the information H corresponds to: H (closing windows; address window).

The central unit 3 also includes means 74 for receiving and storing data 75. The internal clock 75 is inserted into the means for storing data 75.

Data such as the insertion of a new user code to be stored, the deletion of a user code, the number of windows to be operated, the counting of the number of windows opened at the same time, an order to close the windows, lowering of the displays in the safety and locking boxes of the control means for the window motors and the boxes, an order to unlock the locking means, a query of the user codes, protection of access to the computer by verification of a secret code, are transmitted from the computer 4 of the jewelry store and received by the means 74 for receiving data from the central unit 3 and stored by the means 75 for storing the data, the transmission being effected by wired connection.

These data are included in the various information A to H used in the method and the device of the present invention. In the case of a new user code, the jeweler enters a new user code into the computer of the jewelry store 4. This code is transmitted by wire link and received by the central unit 3 at the receiving means 74, recognized by the recognition means 72 and stored in the storage means 75.

Then, said central unit 3 sends information G (new user code) to each of the display cabinets 2 which receives information G, at its high frequency receiver 56 by radio frequency (high frequency) link. This receiver 56 transmits it to the recognition means 53 of said display case 2. This data (new user code) is then transmitted from the recognition means 53 to the storage means 60 of the card 5 where it is stored.

It is possible to replace, in the information G, the datum "new user code" by another datum, stated above, such as for example the datum "deletion of a user code".

The electronic card 5 of the display case 2 and the central unit 3 comprise other means which are known to those skilled in the art such as an initialization means (62, 79) making it possible to initialize the recognition means (53, 72) as soon as the display card and the central unit 3 are powered up, a supply means (59, 77) or even an oscillation or oscillator means (61, 78, 80) making it possible to determine the speeds of work of the different means of the central unit 3 and of the electronic card 5. The oscillator 78 determines the working speed of the storage means and the internal clock 75, as well as the oscillator 80, the speed of the means 72 and the oscillator 61, that of the recognition means 53.

In summary, the transmission and reception of information between the electronic card 5 and the central unit 3 is carried out by radio frequency (high frequency) link within a radius of 45 meters maximum, while the information between the computer 4 of the jewelry store and the central unit 3 are carried out by wire link and the information between the remote control 1 and the electronic card 5 by infrared link. The device and method according to the invention are particularly applicable to jewelry stores, museums and collectors.

The invention also covers all the embodiments and all the applications which will be directly accessible to those skilled in the art on reading the present application, their own knowledge.

Claims

1 device for controlling and authorizing access to at least one display case 2, characterized in that it comprises:

at least one means for controlling an action, said means being carried by a user and comprising a user code, and information A (user code, action) which is transmitted from said means to at least the display case 2 to be actuated,

at least one display case 2 comprising means 51 for receiving information A, for sending 55 information B (user code, action, address window) to a central unit, and for receiving 56 information C, hereinafter called "reception-emission-reception means" 5, said means comprising a showcase address,

2 Device according to claim 1 characterized in that the action control means 1 comprises a first means for selecting the action to be performed on a display case, this selection being carried out by a user and the action being chosen from among opening or closing the display case completely, or even stopping the display case when opening or closing the latter, and a second means for selecting a user code which is selected from a number of codes possible.

3 Device according to any one of claims 1 or 2 characterized in that the reception-transmission-reception means 5 of the display case 2 comprises a decoding means 52 making it possible to decode the information A, which is sent in the form of a signal to a means 53 for recognizing the information A.

4 Device according to claim 1 to 3 characterized in that the means of reception-emission-reception 5 of the display case 2 also comprises a means of recognition 53 of the signal of the user code and the commanded action.

5 Device according to any one of claims 1 to 4 characterized in that the means of reception-emission-reception 5 of the display case 2 also comprises a means 54 for positioning the address of the display case.

6 Device according to any one of claims 1 to 5 characterized in that the means of reception-emission-reception 5 of the display case 2 also comprises a control means 57 of at least one motor.

7 Device according to claim 5 characterized in that in the case where the display case does not include "retractable" safety boxes, the reception-emission-reception means 5 of the display case 2 comprises a control means 57 d 'A motor for controlling the opening, closing or stopping of the window during these two operations, that is to say the raising or lowering of the windows.

8 Device according to claim 5 characterized in that in the case where the display case comprises at least one "retractable" safety box, the reception-emission-reception means 5 of the case 2 comprises a control means 57 of two motors: a first motor, hereinafter called "window motor" used to control the opening, closing or stopping of the window during these two operations, that is to say the raising or lowering the panes, the control means receiving the action to be carried out in the form of an average control signal, and a second motor, hereinafter called “box motor” making it possible to control the raising or lowering of the displays in security boxes. 9 Device according to any one of claims 6 to 8 characterized in that the control means comprises a locking means 58 of the control means of at least one motor, this locking means blocking the motor actuating the opening / closing / stopping the windows, and possibly the motor actuating the raising / lowering of the displays in the security boxes in the case where the exhibition window includes retractable security boxes.

10 Device according to any one of claims 1 to 9 characterized in that the means of reception-emission-reception 5 of the display case 2 comprises a storage means 60 of data received by the central unit, such as the insertion of 'a new user code to store, deleting a user code.

1 1 Device according to claim 1 characterized in that the central unit 3 comprises means 71 for receiving at least one piece of information B (showcase address, user code, action) from the showcase corresponding to said identity address, this information B being transmitted to the recognition means 72 of the information from said unit 3.

12 Device according to claim 11 characterized in that the central unit 3 comprises a means 72 for recognizing the information B and delivers information C (validation of the action / user code / showcase address) which is transmitted by means of transmission 73 of said unit 3.

13 Device according to any one of claims 1 to 12 characterized in that the central unit 3 also comprises a means 73 for transmitting information C to said window corresponding to the window address contained in the information C.

14 Device according to any one of claims 1 to 13 characterized in that the central unit 3 comprises a storage means 76, making it possible to give the history of the actions carried out on all the windows and over a determined period of time , the data thus memorized being the date time, the user code, the action performed and the window address. 15 Device according to any one of claims 11 to 14 characterized in that the central unit 3 further comprises a reception means 74 and a storage means 75 of the data received by the computer 4 connected to the central unit such that the insertion of a new user code to be stored, the deletion of a user code, the number of windows to be operated, the counting of the number of windows opened at the same time, an order to close the windows and lock the means of window motor controls, or an order to close the windows, to lower the displays in the safety boxes and to lock the means for controlling the window motors and the boxes in the case where the exhibition window includes boxes retractable security, an order to unlock the locking means, interrogation of user codes, protection of access to the computer by verifying a secret code, these data s being inserted manually from the jewelry computer 4 and transmitted to the central unit 3.

16 Device according to any one of claims 11 to 15 characterized in that the central unit 3 comprises a means of counting the number of open panes at the same time, which when the authorized number of open panes is exceeded, the central unit emits a signal (alarm information E) to the windows, which orders the windows to be closed (and possibly the descent of the displays in the security boxes 23 if the exhibition window has retractable security boxes), as well as the locking of the means for controlling the window motor (and possibly the box motor).

17 Device according to any one of claims 11 to 16 characterized in that the central unit 3 also includes an internal clock, which sends information F to the windows, telling them to lock on a determined time slot, the control means d '' at least one motor, i.e. either the means for controlling the window opening / closing motor in the case where the display case does not have safety boxes, or the means for controlling the first motor d opening / closing of the windows and of the second up / down motor for the displays in the boxes if the exhibition window has retractable safety boxes. 18 Device according to claim 1 characterized in that each display case 3 of exposure is formed by a display case 24, two windows

21 made of a material resistant to impact and attack, which are located in the upper part of the window, and that behind each of the windows

5 finds a display 22 for jewelry.

19 Device according to claim 18 characterized in that the display case 2 comprises at least one retractable safety box 23 located in the lower part of said display case 2; a box 23 corresponds to a display which is adapted to descend inside the box 23 and where the cover 25 of the box closes on the top of the display 22 when the display is lowered, actuated by the motor of the display case, so as to form a safety box 23 containing the display 22.

20 Device according to claim 18 or 19 characterized in that 5 the display windows 2 comprise position sensors or shock detectors suitable for detecting a shock effected on these windows 2, the shock resulting in information D (shocks; address window) which circulates to the recognition means 53 of the window, and which is then transmitted to the central unit 3.

0 21 Device according to any one of claims 1 to 20 characterized in that said device is equipped with a surveillance system, such as a camera and a surveillance screen connected to the camera and being located in a room different from the one with the camera.

22 Device according to any one of claims 1 to 21 5 characterized in that said device comprises 200 display cases 2, ie 200 showcase addresses and six users, corresponding to six remote controls 1 and the number of possible user codes is 255.

23 Device according to claim 1 or 2 characterized in that the control means 1 is a remote control carried by the user, which transmits the information A to a display case 2 by infrared link and within a radius of between 30 and 50 centimeters. 24 Device according to claim 1 characterized in that the means of reception-emission-reception 5 of the display case is an electronic card 5 comprising a receiver 51 of information coming from the remote control 1, as well as a transmitter 55 of information of the card 5 towards the central unit 3 and a receiver 56 of information coming from the central unit 3, this card 5 being placed at the top right of the display case and which is hidden by the covering 24 of showcase.

25 Device according to claim 1 characterized in that the transmission and reception of information between the electronic card 5 and the central unit 3 are carried out by radio frequency (high frequency) link within a radius of 45 meters maximum, while the information between the computer 4 of the jewelry store and the central unit 3 are made by wire connection.

26 Device according to any one of claims 11 to 17 characterized in that the central unit 3 is a microcontroller connected to a computer 4 by a wire connection, which are preferably located in two different rooms.

27 Device according to any one of claims 18 to 20 characterized in that the display case 2 comprises an indicator light 25 which lights up when the window 21 is open.

28 Device according to claim 9 characterized in that the locking means is a switch 58 which blocks the system for a determined time and fixed by the computer 4 of the jewelry store and preferably, the blocking time being 15 minutes.

29 Device according to any one of claims 24 to 27 characterized in that the electronic card 5 of the display case 2 and the central unit 3 comprise other means such as an initialization means (62, 79) making it possible to initialize the recognition means (53, 72) as soon as the display card and the central unit 3 are switched on, a supply means (59, 77) or even an oscillation or oscillator means (61, 78, 80) making it possible to determine the working speeds of the various means of the central unit 3 and of the electronic card 5, the oscillator 78 determining the working speed of the storage means and the internal clock 75, as well as the oscillator 80, the speed of the recognition means 72 and the oscillator 61, that of the recognition means 53.

30 Method for ordering and authorizing access to at least one display case 2 comprising the steps of:

- control of at least one action by a user, who carries a means 1 for controlling an action, said means comprising a user code,

transmission of information A (user code, action) coming from said at least one control means 1 of an action, to at least the display case 2 to be actuated,

- reception of information A by the reception means 51 of said display case,

- authorization of the action from said control means 1, by the central unit 3

- transmission of information C (action validation / user code / window address) by the transmission means 73 of the central unit 3 to the means for receiving information C, from said window corresponding to the window address , so that the action ordered is carried out at said window.

31 A method according to claim 30 characterized in that the step of ordering at least one action comprises a first step of selecting the action to be performed on a display case, this first selection being carried out by a user and the action being chosen from the complete opening or closing of the window, or even stopping the window when opening or closing it, as well as a second step of selecting a user code which is selected among a fixed number of codes.

32 A method according to claim 30 or 31 characterized in that it further comprises a step of decoding information A (user code, action) by a decoding means 52 disposed in said means for receiving-transmitting-receiving the display case 2, so as to form decoded information A, this decoding taking place after the reception of the information A by the reception means 51.

33 Method according to any one of claims 30 to 32 characterized in that it further comprises a step of transmitting the decoded information A, in the form of a signal, from the output of the decoding means 52 to a recognition means 53 of information A, which is located in the means of reception - emission - reception.

34 A method according to any one of claims 30 to 33 characterized in that said method further comprises a step of recognizing the signal of the user code and the action commanded, by means of recognition 53 of the signal, which is contained in the means of reception - emission - reception 5 of the display case 2.

35 Method according to any one of claims 30 to 34 characterized in that it also comprises a step of positioning the showcase address in the information A (user code, action), so as to form the information B ( showcase address, user code, action), the step being carried out by means of positioning 54 of the address of the showcase, provided in the reception-transmission-reception means 5 of the showcase 2. 36 Method according to any one of claims 30 to 35 characterized in that the step of transmitting information B (window address, user code, action) is carried out by the transmission means 55 of the window towards the central unit 3.

37 Method according to any one of claims 30 to 36 characterized in that, after transmission of the information B to the central unit 3 and if there is no recognition of the signal, the information B is not not validated by the central unit and the commanded action is not carried out.

38 Method according to any one of claims 30 to 37 characterized in that it further comprises a step of controlling at least one motor, making it possible to control the opening, closing or stopping of the window during these two operations, that is to say raising or lowering the windows; this control step being carried out using a motor control means 57, contained in said reception-transmission-reception means 5 of the display case 2.

39 Method according to any one of claims 30 to 38 characterized in that it comprises a step of "retraction" of at least one safety box arranged in an exhibition display case 2 to which each corresponds a display of jewelry , which consists of bringing down jewelry displays, inside the security box provided in the lower part of an exhibition display case 2, the cover of the box closing on it and which consists in making reassemble the same display after opening the cover.

40 Method according to claims 38 and 39 characterized in that in the case where the method comprises at least one step of "retraction" of safety boxes arranged in the display cases 2, the method comprises a step of controlling two motors ^ by by means of a control means 57 of two motors, at said reception-emission-reception means 5 of the display case 2, the control of the two motors consisting in that the action to be carried out at the level of said display case 2 is received, in the form of a signal, by a first "window motor" with a view to controlling the opening, closing or stopping of the window during these two operations, that is to say raising or lowering the windows, and by a second "box motor" used to control the raising or lowering of displays in the safety boxes.

41 Method according to any one of claims 38 to 40 characterized in that it further comprises a step of locking the control of at least one motor, using a locking means 58 of the control means at least one motor, provided in said reception-emission-reception means 5, this locking blocking the control of at least one motor actuating the opening / closing / stopping of the windows.

42 A method according to claim 41 characterized in that it comprises locking the control of at least one motor actuating the opening / closing / stopping of the windows and the control of at least one motor actuating the raising / lowering of the displays in the safety boxes in the case where the method comprises at least one step of "retraction" of the safety boxes.

43 Method according to any one of claims 30 to 42 characterized in that it further comprises an "alarm" step which consists of

the reception of this information E, for each display case, by the reception means 56 of said display case 2, then

- sending this information E by means of recognition 53 of the display case and

- Its transmission to the control means 57 of at least one motor, to activate the closing of the display cases, the descent of the jewelry displays in the safety boxes if the method includes a "retraction" step, and the locking of the controls window motors and boxes if the process includes a "retraction" step once the windows are closed and the boxes are lowered.

44 Method according to any one of claims 30 to 43 characterized in that it further comprises a step of storing data received by the central unit 3, chosen from the insertion of a new user code to be stored, the deletion of a user code, this data being stored at the reception-transmission-reception means 5 of the display case 2, by means of storage of data received by the central unit.

45 Method according to any one of claims 30 to 44 characterized in that the reception of information B by the central unit 3 is followed by a transmission of said information B, of the reception means 71 of the central unit 3 by means of recognition 72 of the information from said unit 3.

46 Method according to any one of claims 30 to 45 characterized in that it further comprises a step of recognition and validation of this information B by the recognition means 72 of the central unit 3, so as to deliver a information C (validation of the action / user code / showcase address), which is transmitted to a transmission means 73 of said unit 3.

47 Method according to any one of claims 30 to 46 characterized in that the information C is received by said display cabinet 2 corresponding to the display address contained in the information C, at its reception means 56 provided in the reception-emission-reception means 5 of said display case.

48 Method according to claim 47 characterized in that it comprises a step of transmitting the information C from the reception means 56 to the recognition means 53 of the reception-emission-reception means 5 of said display case.

49 Method according to claim 47 or 48 characterized in that it comprises a step of transmitting information C from the recognition means 53 to the motor control means 57, by through the locking means 58, to perform the action on the display case 2.

50 Method according to any one of claims 30 to 49 characterized in that it further comprises a step of memorizing the data, making it possible to give the history of the actions carried out on all the showcases and over a determined period of time , thanks to a storage means 76 provided in said central unit 3, the data thus stored being the date, the time, the user code, the action carried out and the showcase address.

51 A method according to any one of claims 30 to 53 characterized in that it comprises a step of counting the number of panes opened at the same time, which is carried out by means of counting the number of panes, provided in said central unit 3.

52 Method according to claim 51 characterized in that, if the authorized number of open windows is exceeded, a signal (alarm information E) is sent by the central unit 3 to the windows 2.

53 Method according to claim 52, characterized in that the alarm signal E corresponds to the closing of the windows, and the locking of each means for controlling the motor 57 of the windows 2.

54 A method according to claim 52 characterized in that, if the method comprises at least one step of "retraction" of the security boxes, the alarm signal E emitted by the central unit 3 to the windows 2, corresponds to the closing windows, lowering the displays in the safety boxes and locking each control means of the window motor and the boxes.

55 Method according to any one of claims 30 to 54 characterized in that it also includes a step of transmitting and transmitting locking information F by the internal clock 75 of the central unit 3, to the display cases 2, telling them to lock the control of at least one motor over a determined time slot. 56 Method according to claim 55 characterized in that the control of at least one motor is the control of the window opening / closing motor.

57 A method according to claim 55 characterized in that the control of at least one motor is the control of the first motor for opening / closing the windows and the second motor for raising / lowering the displays in the boxes if the method comprises at least a step of retracting the safety boxes.

58 Method according to any one of claims 55 to 57 characterized in that the locking information F is performed when all the windows 21 of the display windows 2 are closed.

59 Method according to any one of claims 30 to 58 characterized in that it comprises a step of detecting shocks carried out on the display windows 2 by position sensors or suitable shock detectors, which results in information D (shocks; showcase address) which circulates to the recognition means 53 of the showcase and is then transmitted to the central unit 3.

60 Method according to claim 59 characterized in that in the information D comprising the address of the shop window which has been impacted, the address of the shop window 2 is entered by the positioning means 54 provided in the receiving means- emission-reception 5 of said window.

61 Method according to claim 59 or 60 characterized in that the detection is followed by the transmission of information D from the transmission means 55 provided in said reception-emission-reception means 5 of said display case 2, towards the central unit 3.

62 Method according to any one of claims 59 to 61 characterized in that the transmission of the information D is followed by the reception of this information D by the central unit 3, at its reception means 71, the transmission of this information D to the recognition means 72 of the central unit 3. 63 Method according to claims 53, 54 and 62 characterized in that, following the detection of shocks, an alarm signal E is emitted by the emission means 73 of the central unit 3, to all the windows of exhibition 2.

64 Method according to any one of claims 30 to 63 characterized in that in the event of aggression or burglary of the display windows, the steps of closing the windows, lowering the displays in the security boxes and locking the controls for motors are performed manually.

65 Method according to claims 53 and 54 characterized in that if the alarm E is triggered, the method includes a step of blocking the system for a determined and fixed time, during which it is impossible to trigger the unlocking order of the means engine controls.

66 Method according to claim 65 characterized in that after the blocking period, the method comprises a step of unlocking the motor control means 57, at a computer 4 connected to the central unit 3, which transmits the unlocking order to central unit 3 and then from unit 3 to the various display cases 2.

67 Method according to any one of claims 30 to 66 characterized in that it comprises the closing of all the exhibition panes

2, using a code typed on a computer 4, resulting in information H (closing windows, lowering the displays in the security boxes; address window) which is transmitted from computer 4 to the central unit

3, and received at the level of said unit 3 by the reception means 74 of said unit 3.

68 Method according to claim 67 characterized in that it comprises the transmission of information H by the reception means 74 by means of recognition 72 of said unit 3 then the recognition of said information H by said recognition means 72 and the transmission of this information by means of transmission 73 from unit 3. 69 Method according to claim 67 or 68 characterized in that it comprises the transmission of the information H by the transmission means 73 of the central unit 3, to the display showcases 2 corresponding to the showcase addresses, the showcases 2 receiving the information H at their reception means 56 and transmitting it to the recognition means 53.

70 A method according to any one of claims 67 to 69 characterized in that it comprises the recognition and validation of the showcase address and actions (closing windows, lowering displays in the safety boxes), contained in the information H, by the recognition means 53, and the transmission of these actions, by the recognition means 53 to the motor control means 57, so as to carry out said actions.

71 Method according to any one of claims 30 to 60 characterized in that a user controlling a computer 4 connected to the central unit 3, enters information G in the computer 4, which is transmitted to the central unit 3 , at the reception means 74, recognized by the recognition means 72 and stored in the storage means 75.

72 Method according to claim 71 characterized in that the information G is sent from the central unit 3 to each of the display cases 2 which receives it, at its reception means 56, then is transmitted to the recognition means 53 of said display case 2, then to the storage means 60 of the reception-transmission-reception means 5 of said display case where it is stored.

73 Method according to any one of claims 30 to 72 characterized in that it also comprises a step of receiving and storing the data received by a computer 4 connected to the central unit 3, this data being received by a means of reception 74 and stored by a storage means 75 provided in said unit 3, this data being inserted manually from the computer 4.

74 Method according to any one of claims 30 to 73 characterized in that the data are chosen from the insertion of a new user code to be stored, the deletion of a user code, the number of windows to be actuated, counting the number of windows open at the same time, an order to close the windows and lock the control means of the window motors, or an order to close the windows, to lower the displays in the safety boxes and for locking the control means of the window motors and of the boxes in the case where the display case comprises at least one retractable security box, an order to unlock the locking means, an interrogation of the user codes, a protection of access to the computer by verifying a secret code, this data being included in the various information A to H.

75 Application of the device and method according to any one of the preceding claims to museums, collectors, jewelry stores.