Monitoring system, dispatching assembly, monitoring method and associated computer program

Abstract

Monitoring system, distribution assembly, monitoring method and associated computer program The present invention relates to a system for monitoring an electrical cabinet capable of being connected between an electrical source (3) and a plurality of loads (5), the electrical cabinet (10) comprising a plurality of switching devices (20), each device comprising a movable member (22) configured to move when an electrical fault is detected by the device or following a command from a user, each device being of a type from the group consisting of: a circuit breaker type and a non-circuit breaker type, the system comprising at least one radar (32), configured to, when one of the movable members moves, emit an output signal representative of a speed of movement of the movable member as well as a stroke of the movable member;and an electronic control module, configured to receive the output signal and determine the type of device to which the moving member associated with the output signal belongs. Figure for abstract: Figure 1;

Description

Title of the invention: Monitoring system, distribution assembly, monitoring method and associated computer program

[0001] The present invention relates to a monitoring system, a dispatching assembly, a monitoring method and an associated computer program.

[0002] It is known to monitor an armed or tripped state of certain switching devices, included in an electrical cabinet, in particular circuit breakers, in order to facilitate intervention on the electrical cabinet when an electrical fault is detected. For this, it is known to add a so-called OFSD module, for Open Closed System Fault, to the devices to be monitored. However, an OFSD module must be added per device to be monitored, which increases the costs of the electrical cabinet, and the installation of such an OFSD module requires additional wiring, which makes their installation complex. In addition, in many cases, the space in the electrical cabinet is insufficient to install the OFSD modules on the switching devices to be monitored.

[0003] The aim of the invention is therefore to propose a system for monitoring an electrical cabinet which is easier to install, less expensive and which requires less space than existing solutions.

[0004] To this end, the invention relates to a system for monitoring an electrical cabinet, the electrical cabinet being capable of being connected between an electrical source and a plurality of loads, the electrical cabinet comprising a plurality of switching devices, each device comprising a movable member configured to move when an electrical fault is detected by the device or following a command from a user, each device being of a type from the group consisting of: a circuit breaker type and a type other than a circuit breaker, the system comprising: - at least one radar, configured to, when one of the moving members moves, emit an output signal which is representative of a speed of movement of the moving member as well as a travel of the moving member; - an electronic control module, configured to receive the output signal and determine the type of device to which the moving part associated with the output signal belongs, and

[0005] a transmission module, configured to transmit a message representative of the type determined by the electronic control module.

[0006] Thanks to the invention, it is possible to monitor several switching devices with a single monitoring system, by using at least one radar, which is capable of detecting a movement of a moving part in a sufficiently large area so that several switching devices are monitored simultaneously. The determination module ensures a distinction between circuit breaker type devices and non-circuit breaker type devices, which avoids false alarms in the event of movement of a moving part belonging to a non-circuit breaker type device, in other words, in the event of tripping of a non-circuit breaker type device.

[0007] The monitoring system of the invention is simple to install, since it does not need to be connected to each switching device to be monitored, and, for an equivalent number of switching devices to be monitored, takes up less space than known monitoring devices. In addition, it can be added once the electrical cabinet is already in service, without modifying the arrangement of the devices included in the cabinet.

[0008] According to other advantageous aspects of the invention, the system comprises one or more of the following characteristics, taken individually or in all technically possible combinations:

[0009] - The electronic control module comprises: - a calculation unit configured to calculate, from the output signal, the speed of movement and the stroke of the moving member associated with the output signal; and - a determination unit, configured to determine the type of device to which the moving member associated with the output signal belongs from the movement speed and the stroke calculated by the calculation unit.

[0010] - The electronic control module comprises: - a computing unit configured to calculate a metric from the output signal; and - a determination unit, configured to determine the type of device to which the mobile member associated with the output signal belongs via an artificial intelligence model, the metric being an input variable of the model, the type of device to which the mobile member associated with the output signal belongs being an output variable of the model.

[0011] - The artificial intelligence model is a neural network or a forest random.

[0012] - The output signal being further representative of a position within the device cabinet comprising the moving part associated with the output signal.

[0013] - Each circuit breaker type device comprising a subtype, the electronic module control electronics being further configured, when a moving organ belonging to a circuit breaker type device moves, to determine the subtype of the device to which the moving part associated with the output signal belongs.

[0014] The invention also relates to an assembly for distributing an electric current between a source and a load, the assembly comprising: - an electrical cabinet comprising an enclosure, the enclosure comprising two longitudinal walls extending parallel to a height axis, aligned with each other along a width axis, and a plurality of switching devices, each device comprising a movable member configured to move when an electrical fault is detected by the device or following a command from a user, each device being of a type from the group consisting of: a circuit breaker type and a non-circuit breaker type, the plurality of devices being located between the longitudinal walls along the width axis; and - the surveillance system described above, at least one radar being fixed to the envelope.

[0015] According to other advantageous aspects of the invention, the distribution assembly comprises one or more of the following characteristics, taken individually or in all technically possible combinations:

[0016] - The at least one radar is fixed on one of the longitudinal walls of the cabinet electric.

[0017] - The envelope includes a door, which, when closed, covers the walls longitudinal and protective devices, and wherein the at least one radar is fixed on the door.

[0018] The invention also relates to a method for monitoring an electrical cabinet, the electrical cabinet comprising a plurality of switching devices, each device comprising a movable member configured to move when an electrical fault is detected by the device or following a command from a user, each device being of a type from the group consisting of: a circuit breaker type and a type other than a circuit breaker, the monitoring method being implemented by a monitoring system described above, the method comprising the following steps: - when one of the movable members moves, emission by one of the at least one radars of an output signal representative of a speed of movement of the movable member as well as a stroke of the movable member; - reception of the output signal by the electronic control module; - determination of the type of device to which the associated moving part belongs to the output signal by the electronic control module; and - transmission of a message representative of the type of device to which the mobile part associated with the output signal belongs, by the transmission module.

[0019] The invention also relates to a computer program comprising software instructions which, when executed by a computer, implement a monitoring method as defined above.

[0020] The invention will appear more clearly on reading the description which follows, given solely by way of non-limiting example, and made with reference to the drawings in which: - [Fig.l] [Fig.l] is a schematic representation of an assembly for distributing an electric current according to a first embodiment of the invention; - [Fig.2] [Fig.2] is a schematic representation of a set of re partition according to a second embodiment of the invention; - [Fig.3] [Fig.3] is a schematic representation of a system of sur surveillance according to the first embodiment of the invention; - [Fig.4] [Fig.4] is a graphical representation of types and subtypes of switching devices; - [Fig.5] [Fig.5] is a flowchart of a monitoring process according to the invention; and - [Fig.6] [Fig.6] is a schematic representation of a system of sur surveillance according to a third embodiment of the invention.

[0021] [Fig.l] is a schematic representation of a circuit 1 comprising a distribution assembly 2 of an electric current between a source 3 and a plurality of loads 5, the distribution assembly 2 being intended to be connected to the source 3 and to the plurality of loads 5.

[0022] The source 3 is for example a medium voltage transformer or a medium voltage to low voltage transformer. Alternatively, the source 3 is another system for distributing an electric current. The electrical source 3 is capable of supplying an electric current to the distribution assembly 2 which is configured to distribute it between the loads 5.

[0023] The loads 5 consume the electric current supplied by the source 3. Preferably, the loads 5 are electrical devices such that the unexpected stopping of their operation does not cause damage or risk to the safety of users of the loads 5. The loads 5 are for example used to improve the comfort of the users, and are for example lighting devices.

[0024] The distribution assembly 2 comprises an electrical cabinet 10, also simply called a cabinet. The electrical cabinet 10 is located for example inside a building and rests for example on a floor.

[0025] The electrical cabinet 10 comprises an enclosure 11, inside which most of its components are arranged. The enclosure 11 is for example in the form of a box, not shown, capable of being completely closed. The casing 11 comprises two longitudinal walls 13, extending parallel to an axis of height Z. The longitudinal walls 13 are aligned with each other along an axis of width Y. The casing 11 also comprises two transverse walls 15, extending parallel to the axis of width Y, and connecting the longitudinal walls 13 together. The casing 11 further comprises a bottom 17, mechanically secured to the longitudinal walls 13 and transverse walls 15, and a door 19, aligned with the bottom along an axis of depth X.The door 19 generally forms a removable door, or a door that is movable relative to the longitudinal 13 and transverse 15 walls between a closed configuration in which the door 19 covers the longitudinal walls 13, as well as a space delimited by the longitudinal 13 and transverse 15 walls, and an open configuration allowing access to the components arranged inside the enclosure, in the space delimited by the longitudinal 13 and transverse 15 walls.

[0026] The electrical cabinet 10 is configured to distribute the electric current from the source 3 to the plurality of loads 5. In particular, the electrical cabinet 10 is configured to interrupt the current flowing to the plurality of loads 5. The interruption of the current is either voluntary, i.e. decided by a user of the electrical cabinet 10, or on fault, i.e. caused by an electrical fault occurring in the circuit 1. The electrical faults are abnormal voltage or electrical intensity values ​​in the circuit 1. The electrical faults are for example overvoltages, overcurrents, short circuits, or overload faults. In order to interrupt the current flowing from the source 3 to the plurality of loads 5, the electrical cabinet 10 comprises a plurality of switching devices 20. Each switching device 20 is connected to the source 3 and to a load 5.The devices 20 are located between the longitudinal walls 13 along the width axis Y. More precisely, the devices 20 are arranged in the space delimited by the longitudinal 13 and transverse 15 walls, in other words, inside the electrical cabinet 10. Thus, when the door 19 is closed, it covers the devices 20. Generally, the devices 20 are arranged inside the cabinet 10 in lines parallel to the width axis Y.

[0027] Each device 20 is configured to switch between an armed configuration, in which it conducts current, and a triggered configuration, in which it does not conduct current, and isolates the source 3 and the load 5 to which it is connected.

[0028] Each device 20 comprises a movable member 22. Each movable member 22 is configured to move when the device 20 which comprises it switches to the triggered configuration. In particular, each movable member 22 pivots about an axis of rotation R22.

[0029] In the example of [Fig.l], the axes of rotation R22 of the movable members 22 are parallel to the axis of width Y.

[0030] The switching devices 20 are of a type from the group consisting of a circuit breaker type, and a so-called non-circuit breaker type.

[0031] The circuit breaker devices 20 are devices configured to interrupt the electrical current in the event of a fault. The circuit breaker devices 20 are, for example, miniature circuit breakers, or MCBs, for "Miniature Circuit Breakers", molded case circuit breakers, or MCCBs, for "Molded Case Circuit Breakers", or differential current devices, or RCDs, for "Residual Current Devices". When an electrical fault is detected by the circuit breaker device 20, the device 20 switches to the tripped configuration and the movable member 22 of the circuit breaker device 20 moves. The movable member 22 of a circuit breaker device 20 is, for example, a switching handle, also called a toggle.

[0032] The devices 20 of the non-circuit breaker type are devices configured to interrupt the electric current voluntarily. They are configured to be controlled remotely by a user, for example a technician, and to interrupt the current following a command from the user. The devices 20 of the non-circuit breaker type are, for example, remote switches or contactors. When a user controls one of the devices 20 of the non-circuit breaker type, the device 20 of the non-circuit breaker type switches to the tripped configuration and the movable member 22 of the device 20 of the non-circuit breaker type moves.

[0033] Advantageously, the circuit breaker devices 20 also comprise a subtype. The subtype is for example a power rating, an intensity rating or a family. By power rating, we mean the power that the circuit breaker device 20 is able to withstand without being damaged. By intensity rating, we mean the maximum intensity that the circuit breaker device 20 is able to withstand without being damaged, for example less than 63 A or more than 63 A. By family, we mean a technology for breaking the current flowing in the device, for example a family of electromechanical, hybrid or semiconductor breaking devices.

[0034] The moving members 22 of the circuit breaker type and non-circuit breaker type devices 20 move according to a specific movement speed Vm and stroke Dm, representative of their type. Advantageously, the movement speed Vm and stroke Dm of the moving members 22 of the circuit breaker type devices 20 are also representative of their subtype.

[0035] The distribution assembly 2 further comprises a monitoring system 30 for the electrical cabinet 10.

[0036] The monitoring system 30 comprises at least one radar 32, here three radars 32. The monitoring system 30 alternatively comprises fewer than three radars 32 or more than three radars 32. Each of the radars 32 is configured to emit an output signal when one of the movable switching members 22 moves, as explained in more detail a little further down.

[0037] The radars 32 are electromagnetic wave transmitter-receiver devices. For example, the radars 32 comprise a transmitter and a receiver, or alternatively, a transmitter and two receivers. Advantageously, a frequency of the electromagnetic waves emitted by the radars 32 is between 10 and 70 GHz, preferably between 20 and 30 GHz, more preferably, equal to 24 GHz. Advantageously, the radars 32 are Doppler effect radars.

[0038] In the example of [Fig.l], the radars 32 are fixed on the longitudinal walls 13, so as to emit the electromagnetic waves generally along the width axis Y. In a variant not shown, the radars 32 are all located on the same longitudinal wall 13.

[0039] [Fig.2] represents a second embodiment of the distribution assembly 2, in which the radars 32 are fixed on the door 19.

[0040] In practice, each radar 32 permanently emits a physical quantity at its output. When no moving member 22 is moving, this quantity does not include any information relating to the moving members 22. When a moving member 22 is moving, the physical quantity emitted by at least one of the radars 32 at its output changes and forms an output signal which is then representative of a movement speed Vm and a travel Dm of the moving member 22.

[0041] In a particularly advantageous manner, the output signal is furthermore representative of a position inside the cabinet 10 of the mobile member 22 associated with the output signal, in particular a relative position between the radar(s) 32 having emitted the output signal, and the associated mobile member 22.

[0042] Particularly advantageously, in the embodiments of Figures 1 and 2, the radars 32 are separated from each other by a distance d along the height axis Z of less than 500 mm, preferably less than 400 mm, more preferably equal to 300 mm. Indeed, in the examples of Figures 1 and 2, a single radar 32 does not have a sufficient range to detect a movement of all the moving members 22. Several radars 32 are then necessary to detect a movement of all the moving members 22 included in the cabinet 10. Thus, when a moving member 22 moves, at least one of the radars 32 among the radars 32 of the monitoring system 30 emits an output signal which is representative of the movement speed Vm and the travel Dm of the moving member 22. The travel Dm is also called the movement amplitude of the moving member 22.

[0043] The monitoring system 30 further comprises an electronic control module 34, connected to the radars 32, and visible in [Fig. 3]. The electronic control module 34 is advantageously located on or inside the cabinet 10, for example by being fixed to the casing IL. In the examples of FIGS. 1 and 2, the electronic control module 34 is fixed to one of the transverse walls 15.

[0044] The electronic control module 34 is configured to receive the output signal and to determine the type of device 20 to which the mobile member 22 associated with the output signal belongs.

[0045] For this purpose, the electronic control module 34 advantageously comprises a calculation unit 36. According to a first embodiment, the calculation unit 36 ​​is configured to calculate the speed of movement and the travel of the mobile member 22 associated with the output signal from the output signal. The electronic control module 34 advantageously comprises a determination unit 38, configured to receive the speed of movement Vm and the travel Dm of the mobile member 22 associated with the output signal and determine, from the speed of movement Vm and the travel Dm, the type of the device 20 to which the mobile member 22 associated with the output signal belongs.

[0046] In a particularly advantageous manner, if the mobile member 22 associated with the output signal is of the circuit breaker type, the electronic control module 34 is further configured to determine the subtype of the device 20. In the example of FIGS. 1 and 3, it is the determination unit 38 which is configured to determine the subtype of the device 20.

[0047] The electronic control module 34 comprises an information processing unit formed for example of a memory and a processor associated with the memory, not shown.

[0048] In the example of [Fig. 3], the calculation unit 36 ​​and the determination unit 38 are each implemented in the form of software, or a software brick, executable by the processor. The memory of the electronic control module 34 is then capable of storing calculation software and determination software. The processor is then capable of executing each of the software among the calculation software and determination software.

[0049] In a variant not shown, the calculation unit 36 ​​and the determination unit 38 are each produced in the form of a programmable logic component, such as an FPGA, from the English “Field Programmable Gate Array”, or even an integrated circuit, such as an ASIC, from the English “Application Specific Integrated Circuit”.

[0050] When the electronic control module 34 is produced in the form of one or more software programs, that is to say in the form of a computer program, also called a computer program product, it is furthermore capable of being recorded on a computer-readable medium, not shown. The computer-readable medium is, for example, a medium capable of storing electronic instructions and of being coupled to a bus of a computer system. For example, the readable medium is an optical disc, a magneto-optical disc, a ROM memory, a RAM memory, any type of non-volatile memory (for example FLASH or NVRAM) or a magnetic card.

[0051] The monitoring system 30 further comprises a transmission module 42, configured to transmit a message representative of the type determined by the electronic control module 34, advantageously by the determination unit 38. The transmission module 42 is advantageously also implemented in the form of a computer program and, in this case, it is advantageously capable of being recorded on the same computer-readable medium as that on which the electronic control module 34 is implemented. On the readable medium is then stored a computer program comprising software instructions which, when executed by a computer, implement a monitoring method described in detail below.

[0052] Advantageously, the transmission module 42 is configured to send additional information, for example, in the case of a determination that the type of the device 20 is circuit breaker, information on the position of the device 20 inside the cabinet 10 and / or on its subtype.

[0053] Advantageously, and as shown in Figures 1 and 2, the electronic control module 34 and the transmission module 42 are grouped in a housing 44.

[0054] A method for monitoring the electrical cabinet 10 is described, with reference to FIGS. 4 and 5.

[0055] Initially, the electrical cabinet 10 is in a state S100, in which no moving member 22 moves.

[0056] A movable member 22 moves in step S102.

[0057] During step S104, at least one of the radars 32 emits a representative output signal of the displacement speed Vm and the stroke Dm of the moving member 22.

[0058] The electronic control module 34 receives the output signal during a reception step S106.

[0059] During a determination step S108, the electronic control module 34, having received the output signal, determines the type of the device 20 to which the movable member 22 associated with the output signal belongs. For this, the calculation unit 36 ​​calculates the displacement speed Vm and the stroke Dm of the movable member 22 associated with the output signal, and the determination unit 38 receives the displacement speed Vm and the stroke Dm of the movable member 22 associated with the output signal and determines the type of the device 20 as being a circuit breaker or other than a circuit breaker.

[0060] For example, the determination unit 38 compares the displacement speed Vm and the stroke Dm of the mobile member 22 obtained by the calculation unit 36 ​​with thresholds of displacement speed and travel of the movable member, predefined in advance, for example by the manufacturer. Thus, the determination unit 38 determines the type of the device 20 comprising the movable member 22 associated with the output signal as a function of the displacement speed Vm and the travel Dm of the movable member 22 obtained by the calculation unit 36.

[0061] In the example of [Fig.4], the movement speeds V and strokes D corresponding to the devices 20 of the circuit breaker type are symbolized by the zone A, and the movement speeds V and strokes D corresponding to the devices 20 of the type other than circuit breaker are symbolized by the zone B. The movement speed Vm and the stroke Dm of the movable member 22 associated with the output signal correspond to a device 20 of the circuit breaker type. The determination unit 38 therefore determines the type of the device 20 as being of the circuit breaker type.

[0062] In a variant not shown, the determination unit 38 compares the displacement speed Vm and the stroke Dm of the mobile member 22 obtained by the calculation unit 36 ​​with a database of displacement speeds and strokes of mobile members of different devices 20, and thus determines the type of the device 20 comprising the mobile member 22 associated with the output signal.

[0063] Advantageously, the device 20 comprising the mobile member 22 associated with the output signal being of the circuit breaker type, the determination unit 38 determines the subtype of the device 20 during a step S108.

[0064] In the example of [Fig.4], the subtypes are represented by the zones Ab A2 and A3, corresponding, for example respectively to an RCD, to an MCB and to an MCCB. The displacement speed Vm and the stroke Dm of the mobile member 22 associated with the output signal therefore correspond to a device 20 of the RCD type.

[0065] Once the type and, advantageously, the sub-type have been determined by the determination unit 38, the transmission module 42 transmits a message representative of the type of device comprising the mobile member 22 during a transmission step S110.

[0066] The message is for example an alert message, comprising a text indicating that a circuit breaker type device 20 has been tripped. Advantageously, the message comprises information on the position of the device 20 inside the cabinet 10 and / or on its subtype, in this case RCD.

[0067] In [Fig.6] a monitoring system 130 is shown as a form of rea alternative to the monitoring system 30. The monitoring system 130 differs from the monitoring system 30 by its electronic control module 134, which replaces the electronic control module 34.

[0068] The electronic control module 134 is connected to the radars 32, and is configured to receive the output signal and to determine the type of the device 20 to which the mobile member 22 associated with the output signal belongs.

[0069] The electronic control module 134 differs from the electronic control module 34 in that it comprises a calculation unit 136 and a determination unit 138, which respectively replace the calculation unit 36 ​​and the determination unit 38.

[0070] The calculation unit 136 is connected to the radars 32 and is configured to receive the output signal, and to calculate a metric from the output signal. Alternatively, the calculation unit 136 calculates a plurality of metrics from the output signal. A metric is a quantity, or a series of quantities, deduced from the output signal, which make it possible to describe the output signal. The metrics may be directly linked to the moving member 22 associated with the output signal, as is the case for the speed of movement and the stroke, or not. For example, a metric without a direct link to the moving member 22 associated with the output signal is a Fourier transform of the output signal, a simplified or filtered transform, a maximum of the Fourier transform, a form factor, characteristics relating to the peaks of the Fourier transform, such as their number, location, their width. Alternatively, other metrics are also used.

[0071] The determination unit 138 is connected to the calculation unit 136 and to the transmission module 42. The determination unit 138 is configured to receive the plurality of calculated metrics, and to determine the type of the device 20 to which the mobile member 22 associated with the output signal belongs via an artificial intelligence model. The metric, or, alternatively, the plurality of metrics calculated by the calculation unit 136 are input variables of the model. The type of the device 20 to which the mobile member 22 associated with the output signal belongs is an output variable of the model.

[0072] Advantageously, and in a manner similar to what has been described for the determination unit 38, when the determination unit 138 determines that the device 20 comprising the mobile member 22 associated with the output signal is of the circuit breaker type, the artificial intelligence model of the determination unit 138 is configured to determine the subtype of the device 20. In this case, the subtype of the device 20 is another output variable of the model.

[0073] The artificial intelligence model is for example a random forest, or a neural network.

[0074] The neural network comprises an ordered succession of layers of neurons, each of which takes its inputs from the outputs of the previous layer.

[0075] More precisely, each layer comprises neurons taking their inputs from the outputs of the neurons of the previous layer, or from the input variables for the first layer.

[0076] Alternatively, more complex neural network structures can be envisaged with a layer that can be connected to a layer further away than the immediately preceding layer.

[0077] Each neuron is also associated with an operation, i.e. a type of processing, to be carried out by said neuron within the corresponding processing layer.

[0078] Each layer is connected to the other layers by a plurality of synapses. A synaptic weight is associated with each synapse, and each synapse forms a connection between two neurons. It is often a real number, which takes both positive and negative values. In some cases, the synaptic weight is a complex number.

[0079] Each neuron is capable of performing a weighted sum of the values ​​received from the neurons of the previous layer, each value then being multiplied by the respective synaptic weight of each synapse, or link, between said neuron and the neurons of the previous layer, then applying an activation function, typically a non-linear function, to said weighted sum, and delivering at the output of said neuron, in particular to the neurons of the following layer which are connected to it, the value resulting from the application of the activation function. The activation function makes it possible to introduce a non-linearity into the processing carried out by each neuron. The sigmoid function, the hyperbolic tangent function, the Heaviside function are examples of activation functions.

[0080] As an optional addition, each neuron is also capable of applying, in addition, a multiplicative factor, also called bias, to the output of the activation function, and the value delivered at the output of said neuron is then the product of the bias value and the value from the activation function.

[0081] The neural network is for example a convolutional neural network. A convolutional neural network is also sometimes called a convolutional neural network or by the acronym CNN which refers to the English term for “Convo-lutional Neural Networks”.

[0082] In a convolutional neural network, each neuron in the same layer has exactly the same connection pattern as its neighboring neurons, but at different input positions. The connection pattern is called a convolution kernel or, more often, a "kernel" in reference to the corresponding English term.

[0083] A fully connected layer of neurons is a layer in which the neurons of said layer are each connected to all the neurons of the previous layer.

[0084] Such a type of layer is more often referred to as “fully connected” and sometimes referred to as “dense layer”.

[0085] The artificial intelligence model is trained by the manufacturer, before the monitoring system 130 is put into service.

[0086] In the example of [Fig.6], the calculation unit 136 and the determination unit 138 are each produced in the form of software, or a software brick, executable by a processor not shown. A memory not shown in the electronic control module 134 is then capable of storing calculation software and determination software. The processor is then capable of executing each of the software among the calculation software and the determination software.

[0087] In a variant not shown, the calculation unit 136 and the determination unit 138 are each produced in the form of a programmable logic component, such as an FPGA, or even an integrated circuit, such as an ASIC.

[0088] When the electronic control module 134 is produced in the form of one or more software programs, that is to say in the form of a computer program, also called a computer program product, it is furthermore capable of being recorded on a medium, not shown, readable by a computer. The computer-readable medium is for example a medium capable of storing electronic instructions and of being coupled to a bus of a computer system. For example, the readable medium is an optical disk, a magneto-optical disk, a ROM memory, a RAM memory, any type of non-volatile memory (for example FLASH or NVRAM) or a magnetic card. Advantageously, the transmission module 42, in the form of software, is recorded on this same readable medium. A computer program comprising software instructions is then stored on the readable medium.These software instructions, when executed by a computer, implement a monitoring method for the monitoring system 130, similar to that described for the monitoring system 30, except for the differences described below. Step S108 is modified as follows. During step S108, the electronic control module 134, having received the output signal, determines the type of the device 20 to which the moving member 22 associated with the output signal belongs. For this, the calculation unit 136 calculates a metric, advantageously several metrics, which are received as input variables by the artificial intelligence model of the determination unit 138. The artificial intelligence model then determines the circuit breaker or other type than circuit breaker of the device 20 and, advantageously, the subtype of the device 20.

[0089] According to a variant not shown, the devices 20 are arranged in lines parallel to the height axis Z and the axes of rotation of the mobile members R22 are parallel to the height axis Z. In this case, in a particularly advantageous manner, the radars 32 are arranged on the transverse walls 15, in such a way as to emit the electromagnetic waves generally along the height axis Z.

[0090] In a variant not shown, the axis of rotation R22 of a portion of the movable members 22 is parallel to the width axis Y and another portion of the movable members 22 is parallel to the height axis Z.

[0091] Any feature described for one embodiment or variation in the foregoing may be implemented for the other embodiments and variations described above, as far as technically feasible.

Claims

Claims

1. Monitoring system (30; 130) of an electrical cabinet (10), the electrical cabinet (10) being able to be connected between an electrical source (3) and a plurality of loads (5), the electrical cabinet (10) comprising a plurality of switching devices (20), each device (20) comprising a movable member (22) configured to move when an electrical fault is detected by the device (20) or following a command from a user, each device (20) being of a type from the group consisting of: a circuit breaker type and a non-circuit breaker type, the system (30) comprising: - at least one radar (32), configured to, when one of the movable members (22) moves, emit an output signal which is representative of a speed of movement (Vm) of the movable member (22) as well as a stroke (Dm) of the movable member (22); - an electronic control module (34;134), configured to receive the output signal and determine the type of the device (20) to which the mobile member (22) associated with the output signal belongs, and - a transmission module (42), configured to transmit a message representative of the type determined by the electronic control module (34; 134).;

2. Monitoring system (30) according to claim 1, wherein the electronic control module (34) comprises: - a calculation unit (36) configured to calculate, from the output signal, the speed of movement (Vm) and the stroke (Dm) of the mobile member (22) associated with the output signal; and - a determination unit (38), configured to determine the type of the device (20) to which the mobile member (22) associated with the output signal belongs from the speed of movement (Vm) and the stroke (Dm) calculated by the calculation unit (36).

3. Monitoring system (130) according to claim 1, wherein the electronic control module (134) comprises: - a calculation unit (136) configured to calculate a metric from the output signal; and - a determination unit (138), configured to determine the type of the device (20) to which the mobile member (22) associated with the output signal belongs via an artificial intelligence model, the metric being an input variable of the model, the type of the device (20) to which the mobile member (22) associated with the output signal belongs being an output variable of the model.

4. The monitoring system (130) of claim 3, wherein the artificial intelligence model is a neural network or a random forest.

5. A monitoring system (30; 130) according to any preceding claim, the output signal being further representative of a position within the cabinet (10) of the device (20) comprising the movable member (22) associated with the output signal.

6. Monitoring system (30; 130) according to any one of the preceding claims, each circuit breaker device (20) comprising a sub-type, the electronic control module (34; 134) being further configured, when a movable member (22) belonging to a circuit breaker device (20) moves, to determine the sub-type of the device (20) to which the movable member (22) associated with the output signal belongs.

7. An assembly (2) for distributing an electric current between a source and a load, the assembly (2) comprising: - an electrical cabinet (10) comprising an enclosure (11), the enclosure (11) comprising two longitudinal walls (13) extending parallel to a height axis (Z), aligned with each other along a width axis (Y), and a plurality of switching devices (20), each device (20) comprising a movable member (22) configured to move when an electrical fault is detected by the device (20) or following a command from a user, each device (20) being of a type from the group consisting of: a circuit breaker type and a non-circuit breaker type, the plurality of devices (20) being located between the longitudinal walls (13) along the width axis (Y); and the surveillance system (30; 130) according to any one of the preceding claims, the at least one radar (32) being fixed to the casing (11).

8. Distribution assembly (2) according to claim 7, in which the at least one radar (32) is fixed on one of the longitudinal walls (13) of the electrical cabinet (10).

9. A distribution assembly (2) according to claim 7, wherein the enclosure (11) comprises a door (19), which, when closed, covers the longitudinal walls (13) and the protective devices (20), and wherein the at least one radar (32) is fixed to the door (19).

10. A method for monitoring an electrical cabinet (10), the electrical cabinet (10) comprising a plurality of switching devices (20), each device (20) comprising a movable member (22) configured to move when an electrical fault is detected by the device (20) or following a command from a user, each device (20) being of a type from the group consisting of: a circuit breaker type and a type other than a circuit breaker, the monitoring method being implemented by a monitoring system (30; 130) according to any one of claims 1 to 6, the method comprising the following steps: - when one of the movable members (22) moves, transmission (S 104) by one of the at least one radars (32) of an output signal representative of a speed of movement (Vm) of the movable member (22) as well as a stroke (Dm) of the movable member (22);- reception (S 106) of the output signal by the electronic control module (34; 134); - determination (S 108) of the type of device (20) to which the mobile member (22) associated with the output signal belongs by the electronic control module (34; 134); and - transmission (SI 10) of a message representative of the type of device (20) to which the mobile member (22) associated with the output signal belongs, by the transmission module (42).;

11. A computer program comprising software instructions which, when executed by a computer, implement a monitoring method according to claim 10.

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