Digital system for monitoring the regulation of conditions in a controlled atmosphere zone

Abstract

The present invention relates to a digital system (2) for monitoring the regulation of conditions in a controlled atmosphere zone (1), comprising a controlled atmosphere zone (1) with at least one room (100), preferably with several rooms (100), with ambient conditions and an air handling unit (4). Supervisory software running on a control station (10) ensures the control of actuators (50, 60, 70), based on values ​​measured by probes (300, 310, 320, 330), relative to predetermined setpoint values, said control being carried out at the control station (10) via at least one module (12) connected to at least said probes (300, 310, 320, 330) and said actuators (50, 60, 70). The invention also relates to the use of such a supervision system (2) for the control of the atmosphere of an operating block comprising at least one operating room (100), preferably several rooms (100).Figure for the summary: Fig. 2.

Description

Title of the invention: Digital system for monitoring the regulation of conditions in a controlled atmosphere zone Technical field of the invention

[0001] The present invention falls within the field of supervision of the regulation of conditions in a controlled atmosphere zone.

[0002] As is known, a controlled atmosphere zone (CAZ) comprises at least one enclosed room equipped with means to maintain a controlled atmosphere under specific conditions. In particular, within a CAZ, several atmospheric conditions are regulated, such as temperature, humidity, and air circulation rate.

[0003] In particular, maintaining a constant air mixing rate helps to maintain a positive pressure inside the room, protecting the room against the introduction of contaminants from outside.

[0004] A ZAC is therefore equipped with the corresponding means to allow the regulation of these conditions, namely means of heating and cooling, means of ventilation and air exchange, means of humidity control. A controlled access zone (CAZ) also includes means of filtering solid particles, such as dust, and / or biological particles, such as live or dead bacteria and biologically active molecules, particularly any pathogens. These filtration means generally take the form of at least one filter ceiling.

[0005] Furthermore, these means are combined, notably in the form of air conditioning with one or more ventilation flows and filtration, with automated management, encompassed under the term "air handling unit" (AHU), hereinafter referred to as "unit". Within a ZAC (Zone d'Aménagement Concerté - Concerted Development Zone), each room is equipped with its own unit.

[0006] Such a unit ensures the mixing of an airflow rate in order to achieve a renewed quantity of filtered air, namely a volume of air corresponding to the volume of the room as a function of time. This renewal is determined according to constraints relating to the desired conditions inside the room of the ZAC.

[0007] As such, depending on the restrictions imposed on the regulation of the conditions of a room in a ZAC, this room presents a controlled atmosphere of different levels, required according to the purpose and use made of said room.

[0008] Commonly, the "grey room" is known as a room for storing and transferring equipment, but also people, to a higher level of control room, such as a "clean room" with a high concentration of particles, which is widely used. in the fields of electronics and computer science, up to the level of a "clean room", used in the medical, pharmaceutical and biological fields.

[0009] In particular, the invention will find preferential, but in no way limiting, application in the hospital environment and the supervision of the regulation of a ZAC comprising at least one surgical operating room, in particular an operating block comprising several operating rooms.

[0010] In this medical and hospital context, a ZAC is defined in terms of levels of infectious risk, increasing from a moderate level to a high level, through one or more intermediate levels of infectious risk.

[0011] Furthermore, the conditions inside the room of a ZAC can be maintained for example at a temperature around 21°C (degrees Celsius) and a humidity level below 65% and a positive pressure of 15 Pascals.

[0012] During periods of operation, the ZAC therefore operates continuously in order to maintain the level of infectious risk determined for each room. During periods of inactivity, the ZAC still operates, in standby mode, at a lower level. The ZAC is only shut down during maintenance of the control units.

[0013] It is already apparent that the continuous operation of a ZAC is extremely energy-intensive. State of the art

[0014] Currently, each room in a ZAC (Zone d'Aménagement Concerté - Concerted Development Zone) is equipped with its own dedicated control unit connected to sensors located within the room, but especially at key locations, such as along fluid circulation pipes, ventilation circuits to and from the room, and hot and cold water (or chilled water) circuits supplying the heating and cooling systems. These sensors are either analog or digital, transmitting a corresponding signal to a programmable logic controller (PLC) connected to or integrated into the control unit.

[0015] This automaton ensures the execution of logical functions, such as the start and stop sequences of the power plant, the triggering of alarms in the event of exceeding a threshold determined as critical or "setpoint" for each of the conditions to be regulated, as well as the return of information, in particular to a supervision station.

[0016] Furthermore, the controller allows the execution of calculation functions in the form of control loops, corresponding to the regulation of airflow, temperature, and humidity levels. These calculation functions depend directly on the values ​​of each setpoint and the values ​​measured by the sensors.

[0017] Furthermore, the execution of functions by the automated system results in the control of various actuators, such as valves or solenoid valves on the hot water circuit and on the cold water circuit, or as a fan or a dimmer connected to said fan on the air circuit.

[0018] In a related development, each room in a controlled access zone (CAZ) is equipped with lighting, which, when in operation, generates a source of heat, altering certain conditions, particularly the temperature. This is especially true for powerful lighting, which is generally found in operating rooms. In short, the lights, when switched on, act as a heating device, disrupting the room's temperature regulation.

[0019] In addition, these lights have a determined and high power to ensure the brightness required for medical interventions (true but other factors influence climatic conditions such as the heat input of the nursing staff, the heat input generated by the equipment, external climatic conditions, etc...).

[0020] At present, the power of these lights is not intended to be adjustable, only allowing them to be switched on or off, through actuators in the form of switches.

[0021] However, regulating the conditions of rooms in a controlled access zone (CAZ) presents a major drawback related to the continuous monitoring carried out for each room, which is extremely energy-intensive and proportionally costly. In particular, the CAZ is regulated even when it is not in use or occupied, especially during periods of inactivity, notably when staff are absent, most often at night or on weekends, or even on public holidays or during vacation periods. Description of the invention

[0022] The invention aims to overcome the drawbacks of the prior art by proposing to transfer the calculation of the control loops to a supervisory system in a controlled atmosphere zone (CAZ), specifically for regulating the conditions in the room(s) of a CAZ. In other words, the PLC of the control unit in each room of the CAZ will only perform the logic functions, while the calculation functions for regulating the conditions will be transferred to a management station of said supervisory system.

[0023] In addition, the planned digital supervision system makes it possible to optimize the management of calculation functions, through a software automaton running on said management station and connected, via a communication network, to at least one module added to each room.

[0024] Such a module advantageously comprises several inputs and outputs, connected in the input to additional probes positioned within the ventilation circuit, as well as at the room level, and in the output to the various actuators.

[0025] On the other hand, the module is connected to the communication network, to allow the software controller to precisely control each regulation loop.

[0026] Said module therefore acts as an intermediary between the central unit of each room in the ZAC and the management station of the supervisory system.

[0027] In a related way, the transfer to a software automation system allows for the optimization of control loops, based on the recording of previous data from prior control loops.

[0028] To this end, according to the invention, the digital system for monitoring the regulation of conditions in a controlled atmosphere zone comprises - a controlled atmosphere area with at least one room, preferably with several rooms, each room having ambient conditions, including at least temperature, humidity and air pressure; - each room being equipped with an air handling unit, provided at least: i) a heating circuit with at least one valve-type actuator, and a cooling circuit with at least one valve-type actuator, ii) a ventilation circuit with at least one fan-type actuator, said ventilation circuit extending from at least one air intake vent along at least one upstream portion to said power plant, then along at least one downstream portion from said power plant to at least one air exhaust vent; each power plant also including means for starting and stopping, as well as means for controlling each of said actuators; said system including further - at least one communication network; - at least one management station in the form of a computer terminal connected at least to the said central unit of each room through the said communication network, said at least one terminal including and running at least one monitoring software; - measurement means in the form of at least one sensor measuring a value for each of the said conditions of each room.

[0029] Advantageously, such a system is characterized in that - said measurement means include, coupled to each sensor, at least one probe for measuring a value for each of the said conditions of each room: and in that said system includes for each room - at least one control module for each power plant, connected via the aforementioned communication network: j) the control means for each of said actuators, jj) at each probe, jjj) management position audit; and in that - said software ensures the control of the command of each of said actuators, according to the values ​​measured by each probe, in relation to predetermined setpoint values, said control being carried out at the level of said management position via said at least one module.

[0030] According to additional, non-limiting features, said measuring means comprise at least - a temperature measurement probe, located along said ventilation circuit, preferably along said upstream portion, - a humidity level measurement probe, located along said ventilation circuit, preferably along said upstream section, - an air pressure measuring probe, positioned inside the room - a ventilation measurement probe, positioned upstream and downstream of the fan.

[0031] According to additional, non-limiting features, said at least one module includes an input, preferably of analog type, for each probe.

[0032] According to additional, non-limiting features, said at least one module includes at least one output, preferably of the analog type, for each actuator of each power plant.

[0033] According to additional, non-limiting features, each room further includes lighting means with at least one switch-type actuator; said at least one module includes an output from each switch of the lighting means.

[0034] According to additional, non-limiting features, said system comprises for each room - an intermediate station linked to said management station, each intermediate station comprising and running an interface communicating with said monitoring software.

[0035] According to additional, non-limiting features, said monitoring software includes for each room - a calendar function allowing the entry of time slots for activity and inactivity; - an input function, for each condition, of at least one activity instruction in relation to at least one activity level and one inactivity instruction in relation to one inactivity level; and in that The software automatically manages the transition between active and inactive time slots in relation to the calendar function. by transmitting instructions to the control module, in relation to the values ​​of the conditions measured by said measuring means, respectively according to each corresponding instruction.

[0036] The invention further relates to the use of a supervision system for controlling the atmosphere of at least one surgical operating room in an operating block, preferably of all the rooms in an operating block.

[0037] Such use relates to a digital supervision system according to one and / or the other of the aforementioned embodiments, for the control of the atmosphere of an operating block comprising at least one operating room, preferably several rooms.

[0038] Thus, the invention relates to a digital system for monitoring the regulation of conditions in a controlled atmosphere zone, comprising a controlled atmosphere zone with at least one room, preferably with several rooms, with ambient conditions and an air handling unit. Supervisory software running on a control station ensures the control of actuators, based on values ​​measured by probes, relative to predetermined setpoint values, said control being carried out at the control station via at least one module connected to at least said probes and actuators.

[0039] In particular, the originality of the invention lies in the separation of the calculation functions, which will no longer be performed by the existing automaton but transferred to the module, while retaining said existing automaton. This approach makes it easy to implement the invention on existing devices, rather than modifying the implementation of said devices, with the constraints of the numerous different and distinct, sometimes outdated or proprietary, techniques specific to each device. Drawings are shown below.

[0040] Other features and advantages of the invention will become apparent from the following detailed description of non-limiting embodiments of the invention, with reference to the accompanying figures, in which:

[0041] [Fig. 1] schematically represents a simplified view of the architecture of a controlled atmosphere zone equipped with three rooms; and

[0042] [Fig.2] schematically represents a detailed view of the architecture of a mode of construction of a hall in a ZAC. Detailed description

[0043] The present invention relates to the supervision of the regulation of conditions in a controlled atmosphere zone 1 and aims at a digital supervision system 2, hereinafter "system 2", of the regulation of conditions in a ZAC 1.

[0044] Such a system 2 includes a controlled atmosphere zone 1, hereinafter "ZAC 1", with at least one room 100.

[0045] Preferably, ZAC 1 comprises several rooms 100. According to the embodiment shown in [Fig.1], ZAC 1 comprises three rooms 100.

[0046] Preferably, system 2 is applied in the hospital environment and the supervision of the regulation of a ZAC 1 comprising at least one surgical operating room, in particular an operating block comprising several operating rooms.

[0047] Furthermore, each room 100 has ambient conditions, including at least temperature, humidity, mixing rate and air pressure inside room 100. It is these conditions which must be regulated to be maintained at a determined level, in particular a level of infectious risk.

[0048] To do this, the value of these conditions must be measured. The system 2 therefore includes measurement means 3 in the form of at least one sensor for measuring the value of each of the said conditions of each room 100.

[0049] According to one embodiment, the measuring means 3 include a) a temperature measurement sensor 30, b) a humidity level sensor 31, c) a sensor 32 for measuring the room air pressure,

[0050] d) a sensor 33 for measuring the ventilation pressure.

[0051] In order to regulate and act on the conditions, the system 1 provides that each room Unit 100 is equipped with an air handling unit 4. This unit 4 is, firstly, provided with a heating circuit 5 with at least one valve-type actuator, or heating valve 50. This unit 4 also includes a cooling circuit 6 with at least one valve-type actuator, or cooling valve 51.

[0052] In addition, the power plant 4 includes a ventilation circuit 7 with at least one fan-type actuator 70. Said ventilation circuit 7 extends from at least one air intake vent 71 along at least one upstream portion 710 to said power plant 4, and then along at least one downstream portion 720 from said power plant 4 to at least one air discharge vent 72.

[0053] According to the embodiment visible in [Fig.2], the circuit 7 comprises a single downstream portion 720, but two upstream portions 710 for the air intake at the level of two suction outlets 71.

[0054] In addition, at the level of the central unit 4, the circuit 7 opens into inlet and outlet boxes, which are hermetically sealed and connect to other intermediate boxes dedicated to heating and cooling.

[0055] According to different embodiments, a fan 70 can be located within one and / or the other of the inlet and / or outlet boxes, preferably within the outlet box.

[0056] A configuration with a fan 70 within an outlet box is notably visible in [Fig.2].

[0057] According to one embodiment, the air expulsion vent(s) 72 are covered by a filtering ceiling 73.

[0058] According to one embodiment, as seen in [Fig.2], the ventilation circuit 7 also includes an air inlet 74, communicating with the outside and upstream of the unit 4.

[0059] Therefore, the circulation of the airflow from and to the room, passing through the heating circuit 5 and the cooling circuit 6, in particular through suitable heat exchangers, makes it possible to regulate the conditions, in particular the temperature, but also the humidity level.

[0060] In addition, depending on the speed of the fan(s), the airflow is modified, regulating the air pressure inside the room and ensuring the renewal of a quantity of air.

[0061] It should be noted that in order to measure the values ​​of the conditions, the sensors 30, 31, 32 and 33 are positioned at specific locations, ensuring an adapted and optimized measurement.

[0062] In particular, the measuring means 3 are located as follows: a) The temperature measurement sensor 30 is positioned along the ventilation circuit 7, preferably along the upstream portion 710, b) the humidity level measurement sensor 31, positioned along the ventilation circuit 7, preferably along the upstream section 710, c) the air pressure measuring sensor 32, positioned inside room 100, d) the ventilation pressure measuring sensor 33, (i.e. the total pressure emitted by the fan 70), positioned upstream and downstream of said fan 70, in particular within the outlet box.

[0063] According to one embodiment, each room 100 further includes lighting means 8 with at least one switch-type actuator 80.

[0064] Each central unit 4 also includes means for starting and stopping, as well as means for controlling each of said actuators 50, 60, 70, 80.

[0065] That being said, the system 2 still includes at least one communication network 9. Such a communication network 9 is provided to be digital, wireless or preferably wired.

[0066] Such a network 9 includes suitable devices, connected to each other, such as for example a network splitter or switch, incorporating suitable communication cards.

[0067] This network 9 connects different elements of system 2.

[0068] As such, system 2 includes at least one management position 10 in the form of a computer terminal connected at least to said central 4 of each room 100 through said communication network 9.

[0069] Such a management station 10 allows centralized supervision of one or more rooms 100 of one or more ZAC 1.

[0070] According to one embodiment, the system 2 comprises for each room 100, an intermediate station 11 connected to said management station 10, in particular through said network 9. Such an intermediate station 11 may be a similar computer terminal, or a screen, preferably provided to be touch.

[0071] In addition, each intermediate station 11 includes and operates an interface communicating with said supervisory software. Such an interface allows users in room 100 to view the current values ​​of the conditions and to adjust them locally, for example by controlling the increase or decrease of the temperature.

[0072] It should be noted that said at least one computer terminal includes and runs at least one monitoring software.

[0073] Therefore, in a conventional manner, the computer terminal includes the appropriate hardware components, such as a processor and internal memory, enabling the execution of instructions which make up said supervisory software.

[0074] The computer terminal also includes display means, such as a screen, for displaying a graphical interface. The computer terminal further includes selection and input means, such as a keyboard, mouse, or touchscreen, for interacting with the interface and the software running through the computer terminal.

[0075] Advantageously, the supervision system 2 provides for the addition of additional measurement means 3 and a device, to serve as an intermediary between the management station 10 and each control unit 4 of each room 100 of the ZAC 1.

[0076] To do this, said measurement means 3 comprise coupled to each sensor 30,31,32,33 at least one probe 300,310,320,330 for measuring a value of each of said conditions of each room 100.

[0077] In other words, according to the corresponding embodiment, the measuring means 3 additionally include:

[0078] a) of the temperature measuring sensor 30, a temperature measuring probe 300, b) of the humidity measuring sensor 31, a humidity measuring probe 310, c) of the air pressure measuring sensor 32, an air pressure measuring probe 320, d) of the mixing flow measuring sensor 33, a ventilation pressure measuring probe 330.

[0079] Furthermore, according to the corresponding embodiment, the probes 300, 310, 320, 330 are positioned near the corresponding sensors 30, 31, 32, 33, namely that: - the temperature measurement probe 300 is located along said ventilation circuit 7, preferably along said upstream portion 710, - the humidity measurement probe 310 is located along said ventilation circuit 7, preferably along said upstream portion 720, - the air pressure measurement probe 320 is positioned inside room 100, - the ventilation pressure measurement probe 330 is positioned at the fan 70, upstream and downstream of fan 70.

[0080] According to one embodiment, the probe 320 may consist of a probe for measuring a pressure gradient inside each room 100.

[0081] According to one embodiment, the probe 330 measures the ventilation pressure, namely the total mixing pressure by the fan 70. Such a probe 330 is located upstream and downstream of said fan 70, in particular within the outlet box of the fan 70.

[0082] Such a pressure measuring probe 330 can be a differential probe provided with two measuring devices positioned upstream and downstream of the fan 70, allowing the determination of the total pressure difference generated by said fan 70.

[0083] Furthermore, said system 2 includes for each room 100 at least one control module 12 for each central unit 4.

[0084] This module 12 is connected through said communication network, in particular with said management station 10, but also with the control means of each of said actuators 50, 60, 70, 80, as well as to each probe 300, 310, 320, 330.

[0085] Thus, module 12 allows the data measured and transmitted by probes 300, 310, 320, 330 to be transmitted to station 10. Module 12 also receives instructions from station 10 to control the actuators of circuits 5, 6, 7, as well as the switches 80 of the lighting means 8.

[0086] According to one embodiment, the module 12 includes an input, preferably of the analog type, for each probe 300,310,320,330. According to the embodiment shown in [Fig.2], the module 12 includes four inputs.

[0087] According to one embodiment, the module 12 includes at least one output, preferably of the analog type, for each actuator of each control unit 4. According to the embodiment shown in [Fig.2], the module 12 includes four outputs.

[0088] According to a corresponding embodiment, said at least one module 12 includes an output from each switch 80 of the lighting means 8.

[0089] Advantageously, said software ensures control of the command of each of said actuators 50,60,70,80, according to the values ​​measured by each probe 300,310,320,330 in relation to determined setpoint values.

[0090] Furthermore, said control is carried out at said management post 10 through said at least one module 12.

[0091] According to the corresponding embodiment, the control can be carried out partly from the intermediate station 11 of room 100, sending the control information back to said management station 10 and / or directly to module 12.

[0092] According to a preferred embodiment, the monitoring software comprises several functions for each room 100. These functions are implemented algorithmically with instructions executed by workstation 10.

[0093] Firstly, the software includes a calendar function allowing the entry of time slots for activity and inactivity of each room 100.

[0094] In other words, the software makes it possible to determine time slots during which each room 100 is used or not.

[0095] In addition, the software includes an input function, for each condition, of at least one instruction in relation to at least one level of activity and an inactivity instruction in relation to one level of inactivity.

[0096] According to one embodiment, the input function also allows instructions to be entered for intermediate levels.

[0097] In other words, the software makes it possible to determine values ​​for the setpoints of the conditions for several different levels, in particular levels of infectious risk, such as those mentioned above.

[0098] Therefore, said software automatically ensures the transition between the time slots of activity and inactivity with respect to said calendar function, by transmitting instructions to said control module 12, with respect to the values ​​of the conditions measured by said measuring means 3, respectively according to each corresponding instruction.

[0099] In other words, the software at workstation 10 of the management system allows for the correlation of time slots of activity and inactivity, in order to change the operation of The central unit 4 of each room 100 is controlled according to its activity level. The software therefore allows control, via module 12, of the change in operating level of each room 100.

[0100] For example, at the beginning of an inactivity period, the software commands a transition from a high level to a lower level, with modified setpoint values. Upon receiving this command, module 12 controls actuators 50, 60, 70, and 80 of control unit 4 to comply with the new setpoints.

[0101] Conversely, at the beginning of an activity range (or beforehand according to a period of time necessary to reach the new instructions), the software commands the transition from a lower level to a higher level, with modified setpoint values, sent to said module 12.

[0102] Thus, the software allows for quick and simple control, in a centralized manner and through each module 12 of each room 100, of the change of operating level of each control unit 4 of each room 100 of the ZAC 1.

[0103] It should be noted that the software, and possibly the intermediate station 11, may include various interactive elements, in graphical form, such as virtual menus and buttons, which ensure user interaction.

[0104] In particular the software, and possibly the intermediate station 11, may include a button for a command consisting of forcing the passage of at least 100 rooms from inactivity to activity, or vice versa.

[0105] The invention also relates to the use of a digital supervision system 2 according to the aforementioned embodiments, alone or combined, for the control of the atmosphere of an operating block comprising at least one operating room, preferably several rooms.

[0106] In other words, the invention aims at the use of system 2 for a ZAC 1 in the form of an operating block comprising several rooms 100 in the form of surgical operating rooms.

[0107] Thus, the supervision system 2 according to the invention makes it possible to defer the management of the regulation of the conditions of each room 100 of a controlled atmosphere zone 1, by communicating with the module 12 added and dedicated to each room 100. This supervision of system 2 makes it possible to automate a control of the activity and inactivity levels of the rooms 1 of a ZAC 1, automatically switching from one level to another according to the periods of activity.

[0108] Such supervision offers considerable energy savings, while respecting the constraints related to maintaining regulation in relation to the required levels.

Claims

1. Demands Digital system (2) for monitoring the regulation of conditions in a controlled atmosphere zone (1), comprising - a controlled atmosphere zone (1) with at least one room (100), preferably with several rooms (100), each room (100) having ambient conditions, including at least temperature, humidity and air pressure; - each room (100) being equipped with a central air handling unit (4), provided with at least: i) of a heating circuit (5) with at least one valve-type actuator (50), and of a cooling circuit (6) with at least one valve-type actuator (60), ii) of a ventilation circuit (7) with at least one fan-type actuator (70), said ventilation circuit (7) extending from at least one air intake vent (71) along at least one upstream portion (710) to said power plant (4), then along at least one downstream portion from said power plant (4) to at least one air discharge vent (72); each control unit (4) also comprising means for starting and stopping, as well as means for controlling each of said actuators; said system including further - at least one communication network (9); - at least one management station (10) in the form of a computer terminal connected at least to the said central unit (4) in each room (100) via the said communication network (9), said at least one terminal including and running at least one monitoring software; - measuring means (3) in the form of at least one sensor (30, 31, 32, 33) for measuring a value of each of the said conditions of each room (100): characterized in that - said measuring means (3) comprise coupled to each sensor (30,31,32,33) at least one probe (300,310,320,330) for measuring a value of each of said conditions of each room (100): and in that said system comprises for each room (100) - at least one control module (12) for each control unit (4), connected through said communication network (9): j) to the control means of each of said actuators (50,60,70), jj) to each probe (300,310,320,330), jjj) to said management station (10); and in that - said software ensures the control of the command of each of said actuators (50,60,70), according to the values ​​measured by each probe (300,310,320,330), in relation to determined setpoint values, said control being carried out at the level of said management station (10) through said at least one module (12).

2. Supervisory system (2) according to the preceding claim, characterized in that said measuring means (3) comprise at least - a temperature measuring probe (300), located along said ventilation circuit (7), preferably along said upstream portion (710), - a humidity measuring probe (310), located along said ventilation circuit (7), preferably along said upstream portion (710), - an air pressure measuring probe (320), positioned inside the room (100), - a ventilation measuring probe (330), positioned upstream and downstream of the fan (70).

3. Supervisory system (2) according to any one of the preceding claims, characterized in that said at least one module (12) comprises an input, preferably of analog type, for each probe (300,310,320,330).

4. Supervisory system (2) according to any one of the preceding claims, characterized in that said at least one module (12) comprises at least one output, preferably of the analog type, for each actuator (50,60,70) of each control unit (4).

5. A supervisory system (2) according to any one of the preceding claims, characterized in that - each room (100) further includes lighting means (8) with at least one switch-type actuator (80); - said at least one module (12) includes an output from each switch (80) of the lighting means (8).

6. Supervisory system (2) according to any one of the preceding claims, characterized in that it comprises for each room (100) - an intermediate station (11) connected to said management station (10), each intermediate station (11) comprising and performing an interface communicating with said supervisory software.

7. Supervisory system (2) according to any one of the preceding claims, characterized in that said supervisory software comprises for each room (100) - a calendar function allowing the entry of time slots of activity and inactivity; - an input function, for each condition, of at least one activity instruction in relation to at least one activity level and one inactivity instruction in relation to one inactivity level; and in that said software automatically ensures the transition between the time slots of activity and inactivity in relation to said calendar function, by transmitting instructions to said control module (12), in relation to the values ​​of the conditions measured by said measuring means (3), respectively according to each corresponding instruction.

8. Use of a digital supervisory system (2) according to any one of the preceding claims, for the control of the atmosphere of an operating block comprising at least one operating room (100), preferably several rooms (100).

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