FR2807192A1 - Museum art works protection having surveillance units with volume/switch off detector sets and transmitter/badges sending receiver switch off signal with central system management. - Google Patents

Abstract

The surveillance mechanisms have two sets of detectors associated with signal volumes and switch off (VSA). A receiver (CA) receives switch off signals. There are luminous and sound warners. Transmitter badges (BA) activate local switch off. A control system (UTL) controls the signals, and sets the volume output levels.

Description

The present invention relates to a monitoring device, especially for museum.

It is known, to protect the works of a museum, to install in each room of the museum detectors connected by a wired connection, infrared radio to a central alarm.

The alarm centers currently in use in most museums are not entirely satisfactory because they do not make it possible to ensure the surveillance agent in charge of the room in which the incident occurs.

It is indeed possible for other monitoring agents present on the scene to stop the transmission of audible and / or luminous warning signals emitted by the central alarm, so that the agent responsible for surveillance of the room in question may not be alerted.

However, the alarm center should be able to be controlled only by the officer in charge of the surveillance of the room where the incident occurred, because it is he who is most able to detect quickly, by habit he has of this room, the sabotage of a detector or even the theft of a work.

In addition, the works of a museum are sometimes changed rooms, lent to other museums sent to a restoration workshop.

The monitoring device must therefore be able to adapt easily and quickly to the movement of works.

The present invention aims to propose a new monitoring device that offers increased security.

The monitoring device according to the invention is characterized by the fact that it comprises detector sets associated with respective signaling and acknowledgment volumes, at least one acknowledgment signal receiver for each signaling volume and of acknowledgment, - at least one light and / or audible warning device for each signaling and acknowledgment volume, - acknowledgment signaling badges, specific to each of the signaling and acknowledgment volumes, - signaling means, control connected, directly or indirectly, to the detectors at the acknowledgment signal receptors and to the horns, arranged to ensure, in the event of the transmission of a predetermined signal by a detector associated with a given signaling and acknowledgment volume, a warning signal is triggered by a warning light and / or audible signal until an acknowledgment signal is emitted by a transmitter badge specific to this volume of signaling and acknowledgment.

Thanks to the invention, it is ensured that the surveillance agent in charge of the room where the incident occurs or other authorized persons go on site, they are the only people to have a transmitter badge capable of stopping the transmission of the warning signal by the warning light and / or sound.

In other words, the alert lasts as long as an authorized person has not been there, since other unauthorized agents present on the scene can not interrupt the transmission of the warning signal.

In a preferred implementation of the invention, the aforementioned control means comprise local processing units operating independently, each local processing unit being associated with a set of signaling and acknowledgment volumes.

Still in a preferred implementation of the invention, each local processing unit is connected to a central unit which centralizes the information and each local processing unit is arranged to warn the central unit of the triggering of an alarm.

Advantageously, each local processing unit is programmable from the central unit.

The signaling and acknowledging volumes may comprise detectors connected to wireless autonomous transmitters and at least one sensor arranged to receive the signals emitted by infrared or radio by these autonomous transmitters and transmit them to the local processing unit.

The detectors are connected to the rest of the monitoring device via wired or autonomous transmitters which serve as an interface; these advantageously make it possible to reduce the compatibility problems related to the change of manufacturer in the event of replacement of a given brand detector by another of a different brand. Acknowledgment signaling volumes may also include detectors connected to wired transmitters directly connected to the corresponding local processing unit.

Each autonomous or wired transmitter, sensor or alarm and local processing unit advantageously comprises a dedicated electronic circuit, for example of the NEURONCHIP 3120 or 3150 type, manufactured by the MOTOROLA or TOSHIBA companies and making it possible to carry out logical wiring, for example of the LONWORKS type marketed by the American company ECHELON.

Thus, in the case where a work is moved, the monitoring device can be easily reprogrammed from the central unit, and a detector can be removed or added without having to change the wiring of the other elements of the monitoring device. .

Advantageously, each local processing unit is arranged to - centralize the different types of alarm signals that may emanate from the signaling and acknowledgment volumes associated with this local processing unit, - to control back, after receiving a signal from alarm, the transmission of an audible and / or luminous warning signal by or the alarms arranged in the signaling and acknowledgment volume concerned, - causing the transmission to stop after receiving a signal from acknowledgment transmitted by a transmitter badge specific to the signaling and acknowledgment volume where the incident occurred.

Other characteristics and advantages of the present invention will emerge on reading the following detailed description of an example of non-limiting implementation of the invention, and on examining the appended drawing, in which - the FIG. 1 diagrammatically represents a monitoring device according to the invention; FIG. 2 represents on an enlarged scale elements of the monitoring device attached to a signaling and acknowledgment volume; FIG. 3 is a very simplified example of the organization of sensors and detectors in different rooms, as it can be visualized on the central unit, - Figure 4 is a chronogram describing the chronology of the exchange of information between different elements of the monitoring device in the case of a-alarm followed by an alarm, - figure 5 is a chronogram describing the chronology of information exchanges between different elements. monitoring device in the case of a-alarm followed by an alarm on the same wired transmitter, - Figure 6 is a chronogram describing the chronology of information exchange between different elements of the monitoring device in the sabotage of an autonomous transmitter, - Figure 7 is a timing diagram describing the chronology of information exchange between different elements of the monitoring device in the case technical defect on a wired transmitter, - Figure 8 is a timing diagram illustrating the chronology of exchanges of information between different elements of the monitoring device in the case of an alarm on a wired transmitter, - Figure 9 is a timing diagram illustrating the chronology of information exchanges between different elements of the monitoring device in the case of an alarm. alarm issued by an autonomous transmitter and discharging automatically, and - Figure 10 is a chronogram illustrating the chronology of the exchange of information between different elements of the monitoring device in the case of a detector in a permanent state of alarm.

FIGS. 1 and 2 schematically show various elements of a monitoring device according to the invention.

In the embodiment described, this monitoring device is installed in a museum with a large number of rooms, in which are arranged works to protect.

These works are grouped by VSA signaling and acknowledgment volumes.

In the exemplary embodiment described, each VSA corresponds to one or more rooms, for example one or two rooms.

Each signaling and acknowledgment volume VSA is associated with a surveillance agent responsible for monitoring the works present in the rooms in question.

This monitoring agent is equipped with a BA transmitter badge capable of transmitting a coded acknowledgment signal specific to the badge. In other words, a given badge emits a coded signal different from that emitted by the other badges.

Each signaling and acknowledgment volume is programmed so as to allow the acknowledgment of an alarm only by one or more predetermined badges, whose codes are recognized.

Thus, only one or more predetermined badges whose codes are recognized as authorized are capable of acknowledging an alarm in a given VSA acknowledgment signaling volume, and this or these badges are thus specific to signaling and acknowledgment volume. VSA.

Signaling and acknowledgment volumes can be programmed so that a given badge, assigned to a duly authorized person, can acknowledge an alarm in any VSA acknowledgment and acknowledgment volume.

Each signaling and acknowledging volume VSA comprises, as can be seen more particularly in FIG. 2, a certain number of detectors DT connected for one to TB wired transmitters and for the others to autonomous transmitters TA, the latter being associated with AC sensors.

TA standalone transmitters and AC sensors communicate over a wireless, radio or infrared link.

As DT detectors, it is possible to use laser barriers, volumetric detectors, vibration detectors or icebreakers, this list not being limiting.

Each detector DT has at least two outputs, namely an electrical contact that closes in the event of a technical fault and an electrical contact that closes in the event of an alarm.

Some DT detectors have three separate outputs, namely an electrical contact that closes in the event of a technical fault, a second that closes in the event of an alarm and a third that closes in the event of an alarm.

Pre-alarm means an abnormal situation before the attack is made, for example the fact that a visitor is approaching a predetermined limit of a work.

When the DT detectors comprise only two outputs materialized by electrical contacts, namely one to signal a technical defect and the other to signal an alarm, the latter electrical contact is advantageously arranged to close temporarily in case of pre-alarm and to stay closed in alarm.

In the embodiment described, the TA and wired autonomous transmitters each comprise an integrated audible and light horn making it possible to transmit a characteristic signal of a technical defect, an alarm or an alarm.

Each autonomous transmitter TA sends test signals to the associated AC sensor, at predetermined time intervals, to prevent tampering, as will be explained later.

Each signaling and acknowledgment volume VSA is attached to a local processing unit UTL.

Each UTL local processing unit autonomously manages several VSA signaling and acknowledgment volumes.

Each AC sensor is connected by a wired connection to the local processing unit UTL associated with the signaling and acknowledgment volume VSA in which are located the autonomous transmitter or transmitters TA associated with this AC sensor.

The VSA signaling and acknowledgment volumes comprise one or more PSA signaling and alarm stations capable of emitting light and sound warning signals.

The local processing units UTL are connected to a PCZ central unit, constituted by a microcomputer.

The connection between each local processing unit UTL and the central processing unit PCZ can be performed by a wired connection, by optical fiber or by any other known transmission means.

The organization of the different AC, transmitter and TB sensors and local processing units UTL can be visualized by the central unit as shown in FIG.

It can be seen from this figure that the local processing unit UTL 1 directly exchanges information with AC sensors and wired transmitters TB arranged in two signaling and acknowledgment volumes VSA1 and VSA2.

More particularly, rooms A and B are attached to the signaling and acknowledgment volume VSA1 and rooms C and D are attached to the signaling and acknowledgment volume VSA2. In Room A, two AC sensors are placed, each of which receives the wireless information transmitted by two autonomous transmitters.

In room B is placed a single AC sensor which receives the signals emitted by three autonomous transmitters.

In room C are arranged only AC sensor and two wired transmitters TB.

The TB wired autonomous transmitters TB, the AC sensors, the PSA signaling and acknowledgment stations and the UTL local processing units each have a dedicated circuit for performing logical wiring, the latter being able to be modified by programming from the unit. central PCZ.

In the exemplary embodiment described, the logical wiring is of the LONWORKS network type.

The use of logical wiring facilitates the reprogramming of the various elements of the monitoring device in case of moving a work.

FIG. 4 will now describe the exchanges of information between two wired transmitters TB1 and TB2 and the associated local processing unit UTL, in the case of a pre-alarm emitted by the wired transmitter TB1 followed by an alarm emitted by the wired transmitter TB2.

It is assumed that a visitor approaches too close to a work, which is detected by the detector associated with the wired transmitter TB1.

The latter sends a warning signal characteristic of a pre-alarm to the local processing unit UTL which in turn sends a control signal to the wired transmitter TB1 to enable it to activate the pre-alarm signaling.

The local processing unit UTL also simultaneously sends a control signal to the signaling and warning station PSA.

The wired transmitter TB1 and the signaling and warning station PSA both emit a signal sound characteristic of the pre-alarm, corresponding to the emission of beeps at fairly spaced intervals of time.

In the example of FIG. 4, it is assumed that the detector associated with the wired transmitter TB2 then detects a real alarm, that is to say, for example, an attack on the work itself.

The wired transmitter TB2 informs the local processing unit UTL which in return requests the wired transmitter TB2 and the signaling and warning station PSA to emit a signal sound characteristic of the alarm, namely beeps at a frequency higher than in the case of a pre-alarm.

The local processing unit UTL simultaneously informs the PCZ central unit that the alarm has been triggered.

When the monitoring agent in charge of the signaling and acknowledgment volume VSA arrives on the spot and can assess the cause of the alarm, it transmits with its transmitter badge BA an acknowledgment signal towards a CA sensor.

CA sensor informs the local processing unit UTL of receipt of this signal.

The local processing unit UTL then warns the PCZ central unit of the acknowledgment of the alarm and sends the wired transmitter TB2 and the warning signaling station PSA control signals to cause the stopping of the transmission. the alarm sound signal.

Acknowledgment of the alarm is signaled to the monitoring agent by the audible signal interruption issued by the signaling and acknowledging station PSA during a dead time to predetermined.

The wired transmitter TB1 continues to emit an alert signal corresponding to a pre-alarm.

After the end of the aforementioned dead time, the acknowledgment station PSA emits a sound signal characteristic of the pre-alarm.

The monitoring agent must then issue an acknowledgment signal again to inform the local processing unit UTL that he has been informed of this situation. The signal transmitted by the agent's BA transmitter badge is received by the AC sensor and the latter informs the local processing unit UTL which in return sends control signals to the wired transmitter TB1 and the PSA signaling and acknowledgment station. to stop the pre-alarm signaling.

The detection by the same detector DT in a VSA signaling and acknowledgment volume of a pre-alarm followed by an alarm will now be described with reference to FIG.

It is assumed that the pre-alarm contact of the DT detector closes.

The associated wired transmitter TB informs the local processing unit UTL which in turn requests the wired transmitter TB to transmit a signal characteristic of the alarm and also causes the transmission of a pre-alarm characteristic signal by the signaling station and PSA acknowledgment.

This pre-alarm signal is issued as long as the pre-alarm contact of the DT detector is closed.

When the pre-alarm contact of the detector DT opens, for example because visitor who had approached too close to the work away from it, the wired transmitter TB informs the local processing unit UTL.

The wired transmitter TB and the signaling and acknowledging station PSA, however, continue to emit the characteristic audible pre-alarm signal, in the absence of reception by the AC sensor of an acknowledgment signal.

If it is assumed that the alarm contact of the detector DT closes, the wired transmitter TB informs the local processing unit UTL which in return requests the wired transmitter TB to transmit the alarm characteristic signal and to the station signaling and acquitting PSA to do the same.

The local processing unit UTL then informs the PCZ central unit of the triggering of an alarm.

When the alarm contact of the DT detector opens, the wired transmitter TB informs the local processing unit UTL.

The audible signals characteristic of the alarm transmitted by the wired transmitter TB and the signaling and acknowledging station PSA are maintained until an acknowledgment signal is received from the transmitter badge BA of the agent in question. the signaling and acknowledgment volume VSA in which the event occurred.

On receipt of this acknowledgment signal by the sensor AC, the latter informs the local processing unit UTL which requests the acknowledgment station PSA and the wired transmitter TB to interrupt the transmission of the audible signal. 'alarm.

The local processing unit UTL also informs the central processing unit PCZ of the end of the alarm.

We will now describe with reference to Figure 6 the case of an attempt to sabotage an autonomous transmitter TA. As indicated above, each autonomous transmitter TA sends a specific code, at predetermined time intervals, to the associated CA sensor.

In the absence of reception of this signal within a predetermined time, the CA sensor informs the local processing unit UTL which in return commands the signaling and acknowledging station PSA to trigger an alarm and informs the unit Central PCZ of the situation.

The alarm lasts until an acknowledgment signal is issued by the transmitter badge BA of the monitoring agent responsible for the signaling and acknowledging volume VSA in which the incident occurred.

On receipt of this acknowledgment signal, the sensor CA informs IUTL which controls the stopping of the signaling of the alarm at the signaling and acknowledgment station and warns the PCZ central unit of the end of the alarm. .

The case of signaling by a detector of a technical defect is now described with reference to FIG.

It is assumed that a detector DT signals to a wired transmitter TB associated a technical defect.

This wired transmitter TB informs the local processing unit That informs the PCZ central unit and requests the wired transmitter TB and the signaling and acknowledging station PSA to signal the existence of a technical defect by the transmission. a characteristic signal.

In opening the technical fault contact of the detector, that is to say the end of the technical fault, the wired transmitter TB informs the local processing unit UTL.

The technical fault characteristic signal is however issued until the acknowledgment signal is issued by the transmitter badge BA of the monitoring agent responsible for the PSA signaling and acknowledgment volume in question.

The sensor CA informs the local processing unit UTL of receipt of this acknowledgment signal. The local processing unit UTL in turn informs the PCZ central unit and requests the signaling and acknowledging station PSA and the wired transmitter TB to interrupt the transmission of the technical fault sound signal.

The case of an alarm detected by a detector DT associated with a wired transmitter TB is now described with reference to FIG. It is assumed that the alarm contact of the DT detector is closing.

The wired transmitter TB informs the local processing unit UTL which in turn informs the central processing unit PCZ and causes transmission by the wired transmitter TB and the monitoring and acknowledgment station PSA of the alarm signal.

The end of the detection of the alarm by the detector DT is signaled to the wired transmitter TB, which informs the local processing unit UTL.

The audible signal characteristic of the alarm is maintained until the acknowledgment signal issued by the transmitter badge BA of the agent responsible for monitoring the signaling and acknowledgment volume concerned is received by the AC sensor.

The local processing unit UTL is informed of the reception of this acknowledgment signal, in turn informs the PCZ central unit and causes the stop of the emission of the alarm sound signal by the monitoring station and PSA and the wired transmitter TB.

We will now describe, with reference to FIG. 9, the case of a pre-alarm detected by a detector DT associated with an autonomous transmitter TA, with automatic acknowledgment of this pre-alarm.

The shutdown of the detector's pre-alarm contact is detected by the TA autonomous transmitter which warns the AC sensor which in turn informs the local processing unit UTL.

The latter, in turn, controls the transmission of a pre-alarm sound signal by the signaling and acknowledgment station PSA controls, via the AC sensor, the autonomous transmitter TA so that the latter also triggers the alarm. emitting a pre-alarm sound signal.

The opening of the pre-alarm contact of the detector DT is detected by the autonomous transmitter TA which transmits this information, via the sensor CA, to the local processing unit UTL.

The latter, in the absence of a new alarm or alarm signal for a predetermined duration, requests the signaling and acknowledging station PSA to interrupt the transmission of the pre-alarm sound signal sending a command signal to the AC sensor to cause it to stop transmission by the autonomous transmitter TA of the pre-alarm sound signal.

We will now describe, with reference to FIG. 10, the case of a detector DT in a state of permanent alarm following a technical fault not indicated by the detector DT. The wired transmitter TB informs the local processing unit UTL that the detector DT has closed its alarm contact, which causes in the example described the triggering of an alarm sound signal by the signaling station and the Acknowledgment The PCZ central unit is informed of the alarm triggering the local processing unit.

When the monitoring agent responsible for the signaling and acknowledgment volume VSA in which the event occurs uses its BA transmitter badge to send to the AC sensor the acknowledgment signal characteristic of this signaling and acknowledging volume, the CA sensor informs the local processing unit UTL warns the central unit PCZ and causes the stop by the signaling and acknowledgment station PSA and the wired transmitter TB of the alarm characteristic signal.

If, after a predetermined time t, the alarm contact of the detector DT is still closed, ie the local processing unit UTL has not received a signal informing it of the opening of this contact of alarm, the local processing unit UTL then requests the signaling and acknowledging station PSA and the wired transmitter TB to issue a characteristic signal of technical defect.

The local processing unit UTL itself also transmits a technical fault signal and informs the PCZ central unit thereof.

The emission of an audible signal in the event of a technical defect may alternatively be omitted.

Of course, the invention is not limited to the embodiment described. In particular, other information exchange protocols may be used than the LONWORKS network between the various elements of the monitoring device.

The exchanges of information described with reference to Figures 4 to 10 are intended to illustrate the operation of a monitoring device according to an exemplary embodiment of the invention.

It is not beyond the scope of the present invention by modifying the manner in which the various elements of the device communicate with each other.

Claims (1)

<B> <U> CLAIMS </ U> </ B> A monitoring device, particularly for a museum, characterized in that it comprises sets of detectors (DT) associated with signaling and acknowledgment volumes (VSA) respective ones, - at least one acknowledgment signal receiver (AC) for each signaling and acknowledgment volume (VSA), - at least one warning and / or audible warning device (PSA) for each signaling and acknowledgment volume. - Acknowledgment signal badges (BA), specific to each of the signaling and acknowledgment volumes (VSA), - Control means (UTL) connected, directly or indirectly, to the detectors (DT), Acknowledgment signal receivers and horns (PSA), arranged to ensure that in the event of a predetermined signal being transmitted by a detector (DT) associated with a given signaling and acknowledgment volume (VSA) it has triggered an alert signal by a light alarm ux and / or sound until an acknowledgment signal is emitted by a transmitter badge (BA) specific to this signaling and acknowledgment volume (VSA). 2. Device according to claim 1, characterized in that said control means comprise local processing units (UTL) operating independently, each local processing unit being associated with a set of signaling and acknowledgment volumes ( VSA). 3. Device according to the preceding claim, characterized in that each local processing unit (UTL) is connected to a central unit (PCZ) which centralizes the information and in that each local processing unit (UTL) is arranged to warn the central unit (PCZ) for triggering an alarm. 4. Device according to the preceding claim, characterized in that each local processing unit (UTL) is programmable from the central unit (PCZ). 5. Device according to any one of claims 2 to 4, characterized in that each signaling and acknowledgment volume (VSA) comprises detectors (DT) connected to autonomous transmitters (TA) wireless and at least one sensor (CA) arranged to receive the signals emitted by infrared or radio by these autonomous transmitters (TA) and transmit them to the local processing unit (UTL). 6. Device according to any one of claims 2 to 5, characterized in that the signaling and acknowledgment volumes (VSA) comprise detectors (DT) connected to wired transmitters (TB) directly connected to the signal unit. local processing (UTL). 7. Device according to any one of claims 2 to 6, characterized in that each autonomous transmitter (TA) or wired (TB), sensor (CA) alarm (PSA) and local processing unit (UTL) comprises a dedicated electronic circuit making it possible to carry out logical wiring, preferably of the LONWORKS type. 8. Device according to any one of claims 2 to 7, characterized in that each local processing unit (UTL) is arranged to - centralize the different types of alarm signals that can emanate from the signaling and acknowledgment volumes (VSA). ) associated with this local processing unit (UTL), - to return a command, after reception of an alarm signal, the transmission of an audible and / or light warning signal by the warning device (s) arranged in the the corresponding signaling and acknowledgment volume (VSA), - cause this transmission to stop after receiving an acknowledgment signal transmitted by a transmitter badge (BA) specific to the signaling and acknowledgment volume, where is produced the incident.