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

Abstract

Monitoring system, distribution assembly, monitoring method and associated computer program The present invention relates to a monitoring system for an electrical cabinet suitable for connection 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 moving 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 type other than a circuit breaker, the system comprising at least one radar (32), configured to, when one of the moving members moves, emit an output signal representative of a speed of movement of the moving member as well as a stroke of the moving member;and 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. Figure for the abbreviation: 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 distribution assembly, a monitoring method and an associated computer program.

[0002] It is known to monitor the armed or tripped state of certain switching devices, including circuit breakers, within an electrical cabinet, in order to facilitate intervention on the cabinet when an electrical fault is detected. For this purpose, it is known to add a module called OFSD (Open Closed System Fault) to the devices to be monitored. However, an OFSD module must be added for each device to be monitored, which increases the cost of the electrical cabinet, and the installation of such an OFSD module requires additional wiring, making installation complex. Furthermore, 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 monitoring system for an electrical cabinet that is easier to install, less expensive and requires less space than existing solutions.

[0004] To this end, the invention relates to a monitoring system for 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 element 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, configured to, when one of the moving parts moves, emit an output signal that is representative of a speed of movement of the moving part as well as a stroke of the moving part; - 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, using at least one radar, capable of detecting the movement of a moving part within a sufficiently large area to monitor several switching devices simultaneously. The detection module distinguishes between circuit breaker-type devices and non-circuit breaker-type devices, thus preventing 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 a non-circuit breaker-type device tripping.

[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. Furthermore, it can be added once the electrical cabinet is already in operation, 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 features, taken individually or in all technically possible combinations:

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

[0013] - Each circuit breaker-type device comprising a subtype, the electrical module electronic control being further configured, when a moving part 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 vertical axis, aligned with each other along a horizontal axis, and a plurality of switching devices, each device comprising a movable element configured to move when an electrical fault is detected by the device or following a user command, 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 horizontal axis; and - the surveillance system described above, with 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 features, taken individually or in all technically possible combinations:

[0016] - At least one radar is fixed to one of the longitudinal walls of the cabinet electric.

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

[0018] The invention also relates to a method of monitoring an electrical cabinet, the electrical cabinet comprising a plurality of switching devices, each device comprising a movable part 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 parts moves, emission by one of the at least one radars of an output signal representative of a speed of movement of the movable part as well as a stroke of the movable part; - 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 via the electronic control module; and - emission of a message representative of the type of device to which the moving 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 become clearer upon reading the following description, given solely by way of non-limiting example, and made with reference to the drawings in which: - [Fig.1] [Fig.1] is a schematic representation of an electric current distribution system 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 monitoring 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 monitoring according to a third embodiment of the invention.

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

[0022] Source 3 is, for example, a medium-voltage transformer or a medium-voltage to low-voltage transformer. Alternatively, 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 among 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 cessation 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 users, and are, for example, lighting devices.

[0024] The distribution assembly 2 includes an electrical cabinet 10, also simply called the cabinet. The electrical cabinet 10 is located, for example, inside a building and rests, for example, on the 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 shape of a A box, not shown, capable of being fully 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 includes two transverse walls 15, extending parallel to the axis of width Y, and connecting the longitudinal walls 13 to each other. The casing 11 further includes a base 17, mechanically fixed to the longitudinal walls 13 and transverse walls 15, and a door 19, aligned with the base along an axis of depth X.The door 19 generally forms a removable door, or a movable door relative to the longitudinal walls 13 and transverse walls 15, between a closed configuration in which the door 19 covers the longitudinal walls 13, as well as a space delimited by the longitudinal walls 13 and transverse walls 15, and an open configuration allowing access to the components arranged inside the envelope, in the space delimited by the longitudinal walls 13 and transverse walls 15.

[0026] The electrical cabinet 10 is configured to distribute the electrical 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 intentional, i.e., decided by a user of the electrical cabinet 10, or due to a fault, i.e., caused by an electrical fault occurring in the circuit 1. Electrical faults are abnormal electrical voltage or current values ​​in the circuit 1. Examples of electrical faults include 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 includes 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 walls 13 and transverse walls 15, 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 part 22. Each movable part 22 is configured to move when the device 20 that comprises it switches to the triggered configuration. In particular, each movable part 22 pivots about an axis of rotation R22.

[0029] In the example of [Fig.1], the rotation axes R22 of the moving parts 22 are parallel to the width axis Y.

[0030] The switching devices 20 are of one type among the group consisting of a circuit breaker type, and a type called other than circuit breaker.

[0031] Circuit breaker-type devices 20 are devices configured to interrupt the electrical current upon a fault. Examples of circuit breaker-type devices 20 include miniature circuit breakers (MCBs), molded case circuit breakers (MCCBs), and residual current devices (RCDs). When an electrical fault is detected by the circuit breaker-type device 20, the device 20 switches to the tripped configuration, and the moving part 22 of the circuit breaker-type device 20 moves. The moving part 22 of a circuit breaker-type device 20 is, for example, a switching handle, also called a toggle handle.

[0032] Devices 20 of a type other than a circuit breaker are devices configured to intentionally interrupt the electric current. They are configured to be remotely controlled by a user, for example, a technician, and to interrupt the current following a user command. Devices 20 of a type other than a circuit breaker are, for example, remote switches or contactors. When a user commands one of the devices 20 of a type other than a circuit breaker, the device 20 of a type other than a circuit breaker switches to the tripped configuration and the moving part 22 of the device 20 of a type other than a circuit breaker moves.

[0033] Advantageously, the circuit breaker-type devices 20 also include a subtype. The subtype is, for example, a power rating, a current rating, or a family. By power rating, we mean the power that the circuit breaker-type device 20 is capable of withstanding without being damaged. By current rating, we mean the maximum current that the circuit breaker-type device 20 is capable of withstanding without being damaged, for example, less than 63 A or more than 63 A. By family, we mean a technology for interrupting the current flowing in the device, for example, a family of electromechanical, hybrid, or solid-state interrupting devices.

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

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

[0036] The surveillance system 30 comprises at least one radar 32, here three radars 32. The surveillance 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 elements 22 moves, as explained in more detail below.

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

[0038] In the example of [Fig.1], the radars 32 are fixed on the longitudinal walls 13, so as to emit the electromagnetic waves globally along the width axis Y. In an alternative not shown, the radars 32 are all located on the same longitudinal wall 13.

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

[0040] In practice, each radar 32 continuously emits a physical quantity at its output. When no moving part 22 is moving, this quantity does not include any information relating to the moving parts 22. When a moving part 22 moves, 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 speed of movement Vm and a stroke Dm of the moving part 22.

[0041] In a particularly advantageous way, the output signal is also representative of a position inside the cabinet 10 of the moving part 22 associated with the output signal, in particular a relative position between the radar(s) 32 which emitted the output signal, and the associated moving part 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, and even more preferably equal to 300 mm. Indeed, in the examples of Figures 1 and 2, a single radar 32 does not have sufficient range to detect the movement of all the moving parts 22. Several radars 32 are therefore necessary to detect the movement of all the moving parts 22 contained within the cabinet 10. Thus, when a moving part 22 moves, at least one of the radars 32 among the radars 32 of the monitoring system 30 emits an output signal that is representative of the speed of movement Vm and the stroke Dm of the moving part 22. The stroke Dm is also called the amplitude of movement of the moving part 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 enclosure IL. In the examples of Figures 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 moving part 22 associated with the output signal belongs.

[0045] To this end, 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 and stroke of the moving part 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 Vm and stroke Dm of the moving part 22 associated with the output signal and to determine, from the speed Vm and stroke Dm, the type of device 20 to which the moving part 22 associated with the output signal belongs.

[0046] Particularly advantageously, if the moving part 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 Figures 1 and 3, it is the determining unit 38 that is configured to determine the subtype of the device 20.

[0047] The electronic control module 34 includes 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 as a software program, or a software component, executable by the processor. The memory of the electronic control module 34 is then capable of storing a calculation program and a determination program. The processor is then capable of executing each of the following programs: the calculation program and the determination program.

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

[0050] When the electronic control module 34 is implemented in the form of one or more software programs, i.e., in the form of a computer program, also called a computer program product, it is further capable of being stored on a Computer-readable media, not shown, is a medium capable of storing electronic instructions and being connected to a computer system bus. Examples of computer-readable media include optical discs, magneto-optical discs, ROM, RAM, any type of non-volatile memory (such as FLASH or NVRAM), or magnetic cards.

[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, is advantageously capable of being stored on the same computer-readable medium as that on which the electronic control module 34 is implemented. A computer program comprising software instructions is then stored on the readable medium 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 device 20 is a 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 together in a housing 44.

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

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

[0056] A movable part 22 moves at step S102.

[0057] During step S104, at least one of the radars 32 emits a representative output signal of the speed of movement Vm and the stroke Dm of the moving part 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 device 20 to which the moving part 22 associated with the output signal belongs. For this purpose, the calculation unit 36 ​​calculates the displacement speed Vm and the stroke Dm of the moving part 22 associated with the output signal, and the determination unit 38 receives the displacement speed Vm and the stroke Dm of the moving part 22 associated with the output signal and determines the type of device 20 as 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 moving part 22 obtained by the calculation unit 36 ​​to thresholds of The speed of movement and the stroke of the moving part are predefined, for example by the manufacturer. Thus, the determining unit 38 determines the type of the device 20 comprising the moving part 22 associated with the output signal as a function of the speed of movement Vm and the stroke Dm of the moving part 22 obtained by the calculation unit 36.

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

[0062] In an alternative not shown, the determination unit 38 compares the speed of movement Vm and the stroke Dm of the moving part 22 obtained by the calculation unit 36 ​​to a database of speeds of movement and strokes of moving parts of different devices 20, and thus determines the type of device 20 comprising the moving part 22 associated with the output signal.

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

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

[0065] Once the type and, advantageously, the subtype have been determined by the determination unit 38, the transmission module 42 emits a message representative of the type of device comprising the moving part 22 during an S110 transmission step.

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

[0067] Figure 6 shows a monitoring system 130 as a form of rea Alternative to monitoring system 30. Monitoring system 130 differs from 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 device 20 to which the moving part 22 associated with the output signal belongs.

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

[0070] The computing 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 computing unit 136 calculates a plurality of metrics from the output signal. A metric is a quantity, or a series of quantities, derived from the output signal, which allows the output signal to be described. The metrics may be directly related to the moving part 22 associated with the output signal, as is the case for speed and travel, or not. For example, a metric not directly related to the moving part 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, or characteristics relating to the peaks of the Fourier transform, such as their number, location, and width. Alternatively, other metrics are also used.

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

[0072] Advantageously, and similarly to what has been described for the determination unit 38, when the determination unit 138 determines that the device 20 comprising the moving part 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 linked to a layer further away than the immediately preceding layer.

[0077] Each neuron is also associated with an operation, that is to say 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 link between two neurons. It is often a real number, which takes on both positive and negative values. In some cases, the synaptic weight is a complex number.

[0079] Each neuron is designed to perform a weighted summation of the values ​​received from the neurons of the preceding layer, each value being multiplied by the respective synaptic weight of each synapse, or connection, between said neuron and the neurons of the preceding layer. It then applies an activation function, typically a non-linear function, to said weighted summation and delivers, at the output of said neuron, particularly to the neurons of the next layer connected to it, the value resulting from the application of the activation function. The activation function introduces non-linearity into the processing performed by each neuron. The sigmoid function, the hyperbolic tangent function, and the Heaviside function are examples of activation functions.

[0080] As an optional complement, 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 "Convolutional 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 the convolutional kernel or, more often, the "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 preceding layer.

[0084] Such a type of layer is more often referred to by the English term "fully connected", and sometimes designated by the name "dense layer".

[0085] The artificial intelligence model is trained by the manufacturer, before the commissioning of the monitoring system 130.

[0086] In the example of [Fig. 6], the calculation unit 136 and the determination unit 138 are each implemented in the form of an executable software program, or software component. by an unshown processor. An unshown memory of 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 calculation and determination software.

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

[0088] When the electronic control module 134 is implemented as one or more software programs, i.e., as a computer program, also called a computer program product, it is further capable of being stored on a computer-readable medium (not shown). The computer-readable medium is, for example, a medium capable of storing electronic instructions and being connected to a bus of a computer system. By way of example, the readable medium is an optical disc, a magneto-optical disc, ROM, RAM, any type of non-volatile memory (e.g., FLASH or NVRAM), or a magnetic card. Advantageously, the transmission module 42, in software form, is stored 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 device 20 to which the moving part 22 associated with the output signal belongs. For this purpose, the computing unit 136 calculates a metric, advantageously several metrics, which are received as input variables by the artificial intelligence model of the determining unit 138. The artificial intelligence model then determines the circuit breaker type or other than circuit breaker type of the device 20 and, advantageously, the subtype of the device 20.

[0089] According to an alternative not shown, the devices 20 are arranged in lines parallel to the height axis Z and the rotation axes of the moving parts R22 are parallel to the height axis Z. In this case, particularly advantageously, the radars 32 are arranged on the transverse walls 15, so as to emit the electromagnetic waves globally along the height axis Z.

[0090] In an alternative not shown, the rotation axis R22 of a part of the moving parts 22 is parallel to the width axis Y and another part of the moving parts 22 is parallel to the height axis Z.

[0091] Any feature described for one embodiment or variant in the foregoing may be implemented for other embodiments and variants described above, insofar as it is technically feasible.

Claims

Demands

1. A monitoring system (30; 130) for an electrical cabinet (10), the electrical cabinet (10) being 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 (20) comprising a moving part (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 moving parts (22) moves, emit an output signal that is representative of a movement speed (Vm) of the moving part (22) as well as a stroke (Dm) of the moving part (22); - an electronic control module (34;134), configured to receive the output signal and determine the type of device (20) to which the moving part (22) associated with the output signal belongs, and - a transmitting module (42), configured to transmit a message representative of the type determined by the electronic control module (34; 134).;

2. A 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 moving member (22) associated with the output signal; and - a determination unit (38), configured to determine the type of device (20) to which the moving 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. A monitoring system (130) according to claim 1, wherein the electronic control module (134) comprises: - a computing unit (136) configured to calculate a metric from the output signal; and - a determination unit (138), configured to determine the type of device (20) to which the moving part (22) associated with the output signal belongs via an artificial intelligence model, the metric being an input variable of the model, the type of device (20) to which the moving part (22) associated with the output signal belongs being an output variable of the model.

4. Surveillance system (130) according to claim 3, wherein the artificial intelligence model is a neural network or a random forest.

5. Monitoring system (30; 130) according to any one of the preceding claims, the output signal further being representative of a position inside the cabinet (10) of the device (20) comprising the movable part (22) associated with the output signal.

6. Monitoring system (30; 130) according to any one of the preceding claims, each circuit breaker-type device (20) comprising a subtype, the electronic control module (34; 134) being further configured, when a moving part (22) belonging to a circuit breaker-type device (20) moves, to determine the subtype of the device (20) to which the moving part (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 respect to 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 user command, 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, at least one radar (32) being fixed on the casing (11).

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

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

10. Method for monitoring an electrical cabinet (10), the electrical cabinet (10) comprising a plurality of switching devices (20), each device (20) comprising a movable part (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 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 parts (22) moves, emission (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 part (22) as well as a stroke (Dm) of the movable part (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 moving part (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 moving part (22) associated with the output signal belongs, by the transmission module (42).

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

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