FR3045175A1 - MONITORING DEVICE, SYSTEM AND INFRASTRUCTURE THEREFOR - Google Patents

Abstract

The invention relates to a monitoring device (20), the device (20) being intended to be carried by a carrier, the device (20) comprising: - electronic elements, - a microcontroller adapted to control the electronic elements, - a battery, - a housing (30) delimiting a total interior space, the electronic elements, the microcontroller and the battery being located in the total interior space, the housing (30) having a central portion (36), a first lateral portion ( 38) and a second lateral portion (40), - a bracelet (28) connecting the first portion (38) and the second portion (40), the bracelet (28) defining a closed position, the central portion (36) of the housing (30) having, in the closed position, a first extension along a first direction (X-X ') and a second extension along a second direction (Y-Y'), the ratio between first and second extensions being between 50% and 80%.

Description

Monitoring device, system and associated infrastructure

The present invention relates to a monitoring device. The invention also relates to a monitoring system and a monitoring infrastructure comprising such a monitoring device.

It is known devices monitoring individuals using geolocation technologies. This is, for example, GPS satellite geolocation technology, for "Global Positioning System" in English. In particular, some of these monitoring devices are intended for children.

This is, for example, watches using geolocation technologies. The design of such watches are child-friendly. In addition, such watches known from the state of the art are particularly adapted to receive messages or voice calls, issued by a parent of the child carrying said watch. In addition, such watches are sometimes equipped with a system for sending an emergency information. The system for sending a backup information takes, for example, the form of an "SOS button" type button.

However, children's watches known in the state of the art have a number of disadvantages.

Thus, these watches have relatively large dimensions given the average size of a child's wrist. These dimensions tend to annoy the child who, in fact, withdraws said watch. As an illustration, some of these watches protrude from both sides of the wrist of the child.

In addition, these watches generally contain personal information. Personal information is, for example, the identity of the child, geolocation data of the child, personal messages transmitted by a parent. In fact, the loss of the watch potentially carries the risk of loss and misappropriation of personal information for malicious purposes.

Moreover, given the wearer of these watches, the risk of deterioration is high. As an illustration, once the screen is broken, the watch becomes useless, if not unusable.

Finally, a monitoring device in the form of a watch is not suitable for young children. By toddler, it is typically meant children of 3 or 4 years old. As young children can not read, whether it is time or a text message, the watch is of little interest to them. In fact, they perceive it as a constraint.

In addition, having a watch comprising a screen substantially increases the thickness and weight of a simple bracelet. In fact, this entails a number of disadvantages for an infant. Such disadvantages are, for example, difficulties in putting on or taking off a coat or a sweater, or a feeling of discomfort or even pain in the wrist.

There is therefore a need for a monitoring device of a person, including a child, with better ergonomics. For this purpose, there is provided a monitoring device intended to be worn by a wearer comprising a forearm and a wrist. The monitoring device comprises electronic elements, a microcontroller electrically connected to the electronic elements, the microcontroller being adapted to control the electronic elements, and a battery supplying the electronic elements and the microcontroller. The monitoring device also comprises a housing delimiting a total interior space having an interior volume, the electronic elements, the microcontroller and the battery being located in the total interior space. The housing has a central portion, a first lateral portion and a second lateral portion. The monitoring device further comprises a bracelet connecting the first lateral portion and the second lateral portion, the bracelet defining a closed position in which the monitoring device is held around the wrist of the wearer. The central portion of the housing has, in the closed position, a first extension along a first direction parallel to the forearm of the wearer and a second extension along a second direction perpendicular to the forearm. of the carrier, the ratio between the second extension and the first extension being between 50% and 80%.

According to particular embodiments, the monitoring device comprises one or more of the following characteristics, taken in isolation or in any technically possible combination: the housing comprises a wall, the wall of the housing comprising a playing surface, the playing surface comprising pads and contacts, the pads being fit not to let through electrical current, the contacts being adapted to be electrically powered, the pads extending outwardly of the housing. the first extension is less than the second extension. the ratio between the first extension and the second extension is between 65% and 70%. the first extension has a length of between 30 millimeters and 40 millimeters. the electronic elements comprise at least one element from the group consisting of a geolocation block, the geolocation block being able to receive geolocation data from a geolocation network, a communication block, the communication block being adapted to implement radio communications with a telecommunication network, an accelerometer adapted to detect movement of the monitoring device, a power supply unit for distributing electrical power between the microcontroller and the contacts, and a charger suitable for receive electrical energy from an external source of electrical energy. the microcontroller is adapted to implement communication rules intended to manage data transmitted from the communication block to the telecommunication network and data transmitted from the telecommunication network to the communication block, the communication rules consisting of: prohibit the transmission of carrier data to the telecommunications network, the carrier data defining the data generated on the personal initiative of the carrier, the communication rules of prohibiting the exchange of voice-type data between the monitoring device and a mobile terminal.

It is also proposed a monitoring system that includes a monitoring device and a removable module. The monitoring device is as previously defined. The removable module is adapted to attach to the housing of the monitoring device, the removable module being devoid of memory and autonomous power source.

According to one embodiment, the removable module is chosen from the group consisting of a game element, the game element being, moreover, devoid of electronic element, and a display element, the display element. being adapted to be powered electrically by the housing, the display element comprising a second microcontroller and a screen, the second microcontroller being adapted to control the screen from commands transmitted by the microcontroller of the monitoring device, the element Furthermore, the display device is devoid of a human-machine interface.

There is also a monitoring infrastructure. The monitoring infrastructure comprises a telecommunication network, a geolocation network, at least one server, the server being connected to the telecommunication network, at least one monitoring device as described above, the monitoring device being suitable for communicating with the telecommunication network and the geolocation network, and at least one mobile terminal adapted to transmit / receive data to / from the server via the telecommunication network. Other features and advantages of the invention will appear on reading the following description of embodiments of the invention, given by way of example only and with reference to the drawings which are: FIG. 1, a schematic representation monitoring infrastructure; - Figure 2, a side view of a monitoring device; - Figure 3, a perspective view of the monitoring device of Figure 2; - Figure 4, an electronic diagram of the monitoring device of Figures 2 and 3; - Figure 5, a schematic sectional representation of the monitoring device of Figures 2 to 4, and - Figure 6, an exploded perspective representation of a monitoring system.

A monitoring infrastructure 10 is shown in Figure 1. The monitoring infrastructure 10 is intended to allow members of a first group to monitor members of a second group.

The first group includes, for example, parents.

The second group includes, for example, the children of the parents of the first group. For example, children are aged 3 to 10 years old. In another example, children are young children. The monitoring infrastructure 10 is common to all members of the first and second groups.

In the example illustrated in Figure 1, the monitoring infrastructure 10 is adapted to implement monitoring by a parent of a single child.

Alternatively, the monitoring infrastructure 10 allows a single parent to monitor multiple children. The monitoring infrastructure 10 comprises a telecommunication network 12, a server 14, a mobile terminal 16, a geolocation network 18 and a monitoring device 20.

The telecommunication network 12 is, for example and without limitation, a telecommunication network of GSM, GPRS, EDGE, CDMA2000, UMTS Rel99, UMTS Rel8 / 9, UMTS ReUO and following, the latter type of network being commonly designated under the acronym LTE for "Long Term Evolution" in English.

Such telecommunications networks are not described in more detail later.

The server 14 is connected to the telecommunication network 12.

The server 14 is intended to ensure the exchange of data between the mobile terminal 16 and the monitoring device 20. For this purpose, the server 14 is able to send / receive data to / from the telecommunication network 12.

The data exchanged are, for example, messages transmitted from the mobile terminal 16 to the monitoring device 20. The messages are, for example, messages of the mini-message type, also referred to in English as the "Short Message Service" ( SMS).

The data exchanged are, for example, geolocation data transmitted from the monitoring device 20 to the mobile terminal 16.

The geolocation data are, for example, GPS positions. A GPS position is defined in particular by latitude and longitude.

In addition, the server 14 is adapted to implement instructions transmitted by the mobile terminal 16 or the monitoring device 20.

The instructions are, for example, reading tasks in a memory, writing tasks in a memory or data retransmission tasks.

The server 14 comprises a processor 22 and a memory 24.

The processor 22 is adapted to execute a set of software applications stored in the memory 24. The execution of software applications by the processor 22 is implemented, in certain cases, from instructions transmitted by the mobile terminal 16 and / or by the monitoring device 20.

The memory 24 is adapted to store, in particular, the software applications. Software applications are stored in the form of software instructions.

In addition, the memory 24 also stores a database 26.

The database 26 is adapted to store identification information associated with the children to be monitored. By way of illustration, the database 26 contains, for each child to be monitored, surveillance information specific to said child. The monitoring information is, for example and without limitation, the serial number of a monitoring device 20 worn by said child, the identity of the child, the age of the child or the agenda of the child. The agenda contains the different activities of the child spread over time. A child's diary indicates, for example, that every Monday, the child is in school from 8h to 12h, then in the canteen from 12h to 14h and the pool from 14h to 16h. The diary then allows the parent supervising the child to verify compliance with the geolocation data transmitted by the monitoring device 20 of said child.

In the example illustrated in FIG. 1, the monitoring infrastructure 10 comprises a single mobile terminal 16.

The mobile terminal 16 is used by the parent to monitor the child that the parent wishes to monitor.

Alternatively, the parent has several mobile terminals 16 for monitoring the child.

More specifically, and without limitation, the mobile terminal 16 is adapted to initiate child monitoring and to dynamically configure said monitoring. By initialization of the monitoring of the child, it is understood to fill in the database 26 monitoring information specific to the child, namely the serial number of the monitoring device 20 that said child and its agenda . Configuration of said monitoring includes in particular the updating in real time of said monitoring information.

The mobile terminal 16 is, for example, a mobile phone or a tablet.

The mobile terminal 16 comprises a memory, processing means, a keyboard, a screen and a device for receiving and sending data from and to the telecommunication network 12.

In particular, the memory of the mobile terminal 16 comprises the software instructions defining a mobile application.

The software instructions are, for example, coded in JAVA, Objective C, JAVASCRIPT or NODEJS languages. The mobile application is adapted to implement the monitoring of the child as described above.

The geolocation network 18 is adapted to implement satellite geolocation techniques in connection with the monitoring device 20. The geolocation techniques are based on measuring the transit time of a signal between geolocation satellites and the device surveillance 20.

The monitoring device 20 is intended to be worn by a wearer. The wearer includes a forearm and a wrist.

The carrier is, for example, a child aged 3 to 10 years.

The wearer, in some cases, a toddler.

The monitoring device 20 is able to exchange data with the server 14, the mobile terminal 16 via the telecommunications network 12 and with the geolocation network.

Figures 2 and 3 illustrate the monitoring device 20 of Figure 1.

FIG. 2 is a side view of the monitoring device 20. The plane of FIG. 2 is formed by a vertical direction Z-Z 'and by a longitudinal direction XX' the vertical direction Z-Z 'and the longitudinal direction X- X 'being perpendicular to each other.

FIG. 3 is a perspective view of the monitoring device 20. The space is defined by the vertical direction Z-Z ', the longitudinal direction X-X' and a transverse direction Y-Y '. The transverse direction Y-Y 'is perpendicular to the longitudinal direction X-X' and to the vertical direction Z-Z '.

When the monitoring device 20 is carried by the wearer, at his wrist, the longitudinal direction X-X 'is parallel to the forearm of said wearer and the transverse direction Y-Y' is perpendicular to the front-end. arm of said wearer. Subsequently, the longitudinal direction X-X 'and the transverse direction Y-Y' are also referred to as "first direction" and "second direction".

The monitoring device 20 is adapted to withstand falls on a hard floor with a minimum height of 1 meter.

By "hard floor" is meant, for example, tiling or concrete.

In addition, the monitoring device 20 is waterproof and compatible with the degree of protection IP65. The IP65 degree of protection implies, in particular, total protection against dust and protection against water jets of all directions from a lance, the lance being formed by a nozzle of 22.5 millimeters and having a flow rate of 12 , 5 liters / minute.

The monitoring device 20 comprises a bracelet 28 and a housing 30.

The bracelet 28 is adapted to wind and be fixed around the wrist of the wearer. In addition, the bracelet 28 is able to cooperate with the housing 30.

The wearer's wrist has a perimeter of about 110 millimeters to 170 millimeters. The perimeter is not proportional to age but to the size of the child. "Template" refers to weight, size and frame.

The bracelet 28 is, for example, in the form of a band, whose length is, for example, between 50 millimeters and 350 millimeters.

According to one embodiment, the bracelet 28 has at least two different sizes to adapt to different wrist perimeters.

For example, the bracelet 28 has a length of 135 millimeters or 150 millimeters.

Alternatively, the bracelet 28 has only one suitable size for a wrist whose diameter is between 160 millimeters and 170 millimeters.

In addition, the bracelet 28 does not have detachable parts. In particular, the bracelet 28 does not have small parts that can be detached from the bracelet 28 and swallowed by a child.

Preferably, the bracelet 28 is made of a material having a low percentage of elongation. By "material having a low percentage of elongation" is meant a material whose percentage elongation before rupture is less than or equal to 10%, for example less than or equal to 5%.

Preferably, the bracelet 28 is made of a hypoallergenic material, comfortable to wear, water-resistant and durable over time.

The bracelet 28 comprises two attachment ends 32 and two attachment ends 34.

The attachment ends 32 are adapted to cooperate with each other in a closed position by means of a closure member, not shown in FIGS. 2 and 3. The closed position is a position in which the monitoring device 20 is held around wrist of the wearer.

The hook ends 34 are adapted to cooperate with the housing 30 to maintain the bracelet 28 on the housing 30. The hook ends are, for example, adapted to fit into the openings of the housing 30, the maintaining the bracelet 28 on the housing 30 being ensured, for example, using metal rods. Alternatively, the bracelet 28 and the housing 30 came from materials.

The housing 30 is adapted to house electronic elements forming part of the monitoring device 20. The electronic elements are described below.

The housing 30 comprises a central portion 36, a first lateral portion 38 and a second lateral portion 40.

The central portion 36 is adapted to accommodate some of the elements involved in the constitution of the monitoring device 20. These elements are described later.

As shown in Figure 3, the central portion 36 has a first extension in the first direction and a second extension in the second direction.

The first extension is greater than the second extension. The ratio between the second extension and the first extension is between 50% and 80%, typically between 65% and 70%.

In the present embodiment, the central portion 36 is, for example, in the form of a rectangular parallelepiped. The first extension of the central portion 36 corresponds to the length of the parallelepiped. The second extension of the central portion 36 corresponds to the width of the parallelepiped.

The parallelepiped defines a first interior space having a first interior volume V1 between 9 cm3 and 50 cm3, for example of the order of 26.22 cm3.

The length of the parallelepiped taken in the first direction is between 30 millimeters and 70 millimeters, for example of the order of 57.5 millimeters.

The width of the parallelepiped taken in the second direction is between 30 millimeters and 50 millimeters, for example of the order of 38 millimeters.

The parallelepiped has a thickness, taken in the vertical direction Z-Z ', of between 10 millimeters and 15 millimeters, for example of the order of 12 millimeters.

The parallelepiped defines a first horizontal surface S1, a second horizontal surface S2, a first lateral surface S3, a second lateral surface S4, a first lateral surface S5 and a second lateral surface S6.

The first horizontal surface S1 extends along a plane defined by the longitudinal direction X-X 'and the transverse direction Y-Y'. The first surface S1 is adapted to rest, at least in part, on the wrist of the wearer.

The second horizontal surface S2 is parallel to the first surface S1. The second horizontal surface S2 is intended to receive at least one removable module. Removable modules are described in more detail later.

Subsequently, the second horizontal surface S2 is designated by the expression "playing surface".

The playing surface comprises studs 42 and contacts 43.

The pads 42 are in particular intended to cooperate with the at least one removable module. The pads 42 are adapted to not let through electric current.

The playing surface comprises, for example, twelve studs 42.

The pads 42 are, for example, regularly distributed in three rows each comprising four pads 42.

The rows extend parallel to each other and in the longitudinal direction X-X '.

According to one embodiment, the pads 42 all have the same shape.

The pads 42 extend in a direction from the first horizontal surface S1 to the second horizontal surface S2.

Each stud 42 is in the form of a cylinder. The cylinder extends circumferentially around the vertical direction Z-Z '.

For example, the cylinder has a height, taken in the vertical direction Z-Z ', between 1 millimeter and 3 millimeters. In particular, the cylinder has a height of 1.7 millimeters.

The cylinder has a disk base having a diameter of between 4 millimeters and 6 millimeters.

In particular, the base has a diameter of 5 millimeters.

According to one embodiment, the pads 42 and the housing 30 came from materials. The pads 42 and the housing 30 are, for example, overmolded in the same material.

The contacts 43 are suitable for ensuring exchanges of electrical energy and data in the form of, for example, a carrier current.

The playing surface comprises, for example, eight contacts 43.

The contacts 43 are, for example, regularly distributed in two rows each comprising four contacts 43.

The rows extend parallel to each other and in the transverse direction YY '. As can be seen in FIG. 3, the contacts 43 are arranged in staggered rows 42.

According to one embodiment, the contacts 43 are all identical.

Each contact 43 is, for example, in the form of a round and golden pellet. The pellet has a diameter, for example, of 0.4 millimeters.

Each contact 43 is, for example, made of an electrically conductive material, for example copper.

Each contact 43 is adapted to perform a predetermined action. By way of illustration, four contacts 43 are intended to cooperate with a specific charger, namely: two contacts capable of providing a USB-type communication, from the "Universal Serial Bus" (in French, "universal bus of series "), with a device, for example a computer; - a proper contact to ensure a supply of +5 V, and - a clean contact to ensure a function of electrical mass.

In addition, four contacts 43 are intended to cooperate with a removable module for the power supply of said removable module, namely: - two contacts adapted to allow UART type communications, of the "Universal Asynchronous Receiver Transmitter", with the removable module; - A proper contact to detect the presence and / or connection of the removable module on the playing surface, and - a clean contact to ensure the power supply of the removable module.

The first lateral portion 38 is adapted to accommodate electronic elements, which are described later.

The first lateral portion 38 defines a second interior space having a second internal volume V2 of between 10 cm3 and 30 cm3.

The first lateral portion 38 extends partly from the first lateral surface S5 and partly from the first horizontal surface S1. In particular, the first lateral portion 38 extends in a direction opposite to the pads 42.

In particular, the first lateral portion 38 is located 2 millimeters from the first lateral surface S3 and 27.5 millimeters from the second lateral surface S4.

According to the illustrated example, the first lateral portion 38 has a length, taken along the longitudinal direction X-X ', of 28 millimeters.

According to the particular case described, the first lateral portion 38 has a height, taken in the vertical direction Z-Z ', of between 20 millimeters and 40 millimeters, for example of the order of 36 millimeters.

The first side portion 38 defines a first outer curved surface C7 and a first inner curved surface C8.

The first outer curved surface C7 has sections, taken along a plane perpendicular to the longitudinal direction X-X ', having the shape of a circular arc. The arc of a circle is a quarter circle.

The first outer curved surface C7 has a first end tangent to the playing surface and a second end tangent to the vertical direction Z-Z '.

The first inner curved surface C8 has sections, taken along a plane perpendicular to the longitudinal direction Z-Z ', having the shape of an ellipse portion.

The first inner curved surface C8 has a first end tangent to the playing surface and a second end tangent to the vertical direction Z-Z '.

The second lateral portion 40 is adapted to ensure the mechanical maintenance of the monitoring device 20 at the wrist when the bracelet 28 is in the closed position. In particular, the second lateral portion 40 is adapted to prevent the monitoring device 20 from rotating around the wrist.

The second lateral portion 40 defines a third interior space having third internal volume V3 of between 6.5 cm3 and 8 cm3.

In the particular case illustrated, the third internal volume V3 is equal to 7.12 cm3.

Preferably, the third interior volume V3 is filled with material.

Similarly to the first lateral portion 38, the second lateral portion 40 defines a second outer curved surface C9 and a second inner curved surface C10.

Since the second lateral portion 40 is not intended to contain electronic components, its dimensions are reduced relative to those of the first lateral portion 38. By way of illustration, the second lateral portion 40 has a length, taken along the longitudinal direction X-X ', 20 millimeters.

According to the particular case described, the second lateral portion 40 has a height, taken in the vertical direction Z-Z ', of between 10 millimeters and 20 millimeters, for example of the order of 16 millimeters.

Preferably, the central portion 36, the first lateral portion 38 and the second lateral portion 40 are made in one piece. Alternatively, the second lateral portion 40 is independent of the central portion 36 and is fixed to the central portion 36 by means of screws.

In particular, the first interior space communicates with the second interior space. By "a space communicating with another", it is understood that there is no partition separating them internally so that their respective volume are conjoined.

The housing 30 then delimits a total interior space then having total internal volume. The total interior volume is the sum of the first volume V1 and the second volume V2.

FIG. 4 is a schematic representation in section of the monitoring device 20. The section is made in such a way that the plane of FIG. 5 is contained in a plane parallel to both the transverse direction Y-Y 'and the vertical direction Z-Z'. In Figure 5, the bracelet 28 is not shown.

As can be seen in FIG. 4, the monitoring device 20 comprises a battery 50, an electronic card 52, an external connector 54 and a supply connector 56.

The battery 50 is suitable for providing the power supply for the various electronic elements forming part of the monitoring device 20.

In particular, the battery 50 is adapted so that the monitoring device 20 has an autonomy of at least 8 hours without recharging in a normal operating mode of said monitoring device 20.

The battery 50 is, for example, a battery of the Lithium Polymer type.

In particular, the battery 50 has an output voltage, for example, of about +3.7 V and a capacity of, for example, about 330 mAh or more.

In addition, the battery 50 is equipped with an overcurrent and short circuit protection circuit, not shown, and a thermistor, not shown, adapted to measure and control the temperature of said battery 50.

The battery 50 is, for example, in the form of a rectangular parallelepiped.

The parallelepiped has a length of 37 millimeters, a width of 25 millimeters and a height of 4.2 millimeters.

As can be seen in FIG. 5, the battery 50 is located inside the central portion 36.

More specifically, the battery 50 is positioned horizontally and is located at a distance of at least 6 millimeters from the first horizontal surface S1.

As can be seen in FIG. 4, the electronic card 52 comprises a microcontroller 60, a geolocation block 62, a communication block 64, an accelerometer 66, a power supply unit 68 and a charger 70.

The microcontroller 60 is able to supply power to the monitoring device 20 and this, in different modes of operation of said monitoring device 20.

In particular, the microcontroller 60 is adapted to estimate the electrical energy remaining in the battery 50. For this purpose, the microcontroller 60 is connected to the power supply unit 68.

The microcontroller 60 is also adapted to ensure the management of radio communications.

The microcontroller 60 is also adapted to record parameters, various data as well as geolocation information.

According to the illustrated example, the microcontroller 60 is connected to the geolocation block 62 and to the communication block 64.

In particular, the microcontroller 60 is adapted to implement communication rules. The communication rules are to prohibit the transmission of carrier data to the telecommunication network 12. The carrier data is all the data generated directly and personally by the carrier, such as SMS. In addition, the communication rules prohibit voice-type calls between the monitoring device 20 and the mobile terminal 16.

In addition, the microcontroller 60 is adapted to monitor the proper closure of the bracelet 28.

In addition, the microcontroller 60 is adapted to configure the accelerometer 66 to detect the movements of the carrier of the monitoring device 20.

According to the illustrated example, the microcontroller 60 is connected to the accelerometer 66.

The microcontroller 60 is also adapted to manage the data exchanges with the removable modules to be positioned on the monitoring device 20 at the playing surface, as well as their power supply.

According to the illustrated example, the microcontroller 60 is, for this purpose, connected to the contacts 43.

The microcontroller 60 is also adapted to ensure the communication of the monitoring device 20 with an external electronic device.

According to the illustrated example, the microcontroller 60 is connected to the external connector 54.

The microcontroller 60 is, for example, a microcontroller using ARM CORTEX technology. The microcontroller 60 comprises a 64 Kb Flash memory, not shown in the figures, and an internal RAM, not shown in the figures, adapted to execute embedded software. The memories of the microcontroller contain only software instructions to execute. In fact, the memories do not contain any monitoring information of the wearer.

In addition, the microcontroller comprises an analog input, not shown in the figures, adapted to measure the voltage of the battery 50. Once said voltage measurement is performed, the microcontroller 60 is adapted to transmit this measurement to the mobile terminal 16 from the communication block 64.

As can be seen in FIG. 5, the microcontroller 60 is located in the central portion 36.

More specifically, the microcontroller 60 is located between the battery 50 and the playing surface.

The geolocation block 62 is adapted to implement communications with the geolocation network 18. It is adapted to receive, after request, the geolocation data of the monitoring device 20.

The geolocation block 62 comprises a geolocation radio unit 72 and a geolocation antenna 74.

As can be seen in FIG. 5, the geolocation block 62 is situated in the second lateral portion 40 of the housing 30. In addition, the geolocation block 62 is connected to the microcontroller 60 via a first flexible element 73.

The first flexible element 73 is made of a flexible material comprising all the components necessary for the passage of electrical energy and data. The geolocation radio unit 72 is adapted to be extinguished by order of the microcontroller 60. The geolocation radio unit 72 is also adapted to, even if it is extinct, to keep ephemeris data of previous connections by means of a backup function . This has the advantage of facilitating the computation of the geolocation data during a next restart.

The communication block 64 is adapted to implement radio communications with the telecommunication network 12. The communications are implemented according to any communication protocol compatible with the telecommunication network 12.

The communication block 64 comprises a communication radio unit 76, an antenna 78 and SIM card 80. The communication radio unit 76 is adapted to implement quad-band radio communications.

Radio communications are, for example, implemented in the 800 MHz, 900 MHz, 1800 MHz and 1900 MHz frequency bands. In addition, the communication radio unit 76 is adapted to receive SMS. The communication radio unit 76 further comprises a serial port, not shown in the figures, suitable for communicating with the microcontroller 60. The serial port is of UART type. The serial port is particularly suitable for performing "low level" commands, data transfers and file downloads.

In addition, the communication radio unit 76 is able to be switched on and off by order of the microcontroller 60. The antenna 78 is able to be deformed. This is, for example, an antenna of the type "PCB Flex" directly integrated on the electronic card 52.

The SIM card 80 is a standard SIM card, also known in English as the Subscriber Identity Module. The SIM card 80 is, for example, in the "micro-SDCard" format.

As can be seen in FIG. 5, the communication block 64 is located in the central portion 36 of the housing 30 of the monitoring device 20, next to the battery 50. By "being on the side" is meant to be shifted according to the direction, for example, longitudinal X-X '.

In addition, the communication block 64 is connected to the microcontroller 60. The accelerometer 66 is adapted to detect slight movements of the monitoring device 20.

When the monitoring device 20 is no longer in motion for at least, for example, 30 seconds, the accelerometer 66 is adapted to transmit the information to the microcontroller 60 for putting the monitoring device 20 into standby. Advantageously, in this situation, the communication block 64 then transmits an alert message to the mobile terminal 16.

The power supply unit 68 is able to distribute the electrical energy between the microcontroller 60 and the contacts 43.

The power supply unit 68 is powered by the charger 70 on the one hand, and by the power supply connector 56 on the other hand.

According to the illustrated example, the power supply unit 68 is connected to the charger 70 and to the power supply connector 56.

The charger 70 is able to receive electrical energy from the external connectors 54. When the external connector 54 is connected to a power source, a recharging system for example, the charger receives electrical energy for supply of the power supply 68.

The external connector 54 is adapted to connect the monitoring device 20 to an external electronic device, such as a computer or a reloading system of said monitoring device 20. The external connector 54 is, for example, a USB socket.

The supply connector 56 is adapted to ensure the exchange of electrical energy between the battery 50 and the microcontroller 60.

In addition, the monitoring device 20 is devoid of any button. In particular, the monitoring device 20 does not include an emergency button, such as an SOS push button for sending a backup message to the mobile terminal 16.

Figure 6 shows an exploded view of a monitoring system 100.

The monitoring system 100 comprises a monitoring device 20 and a removable module 102.

The removable module 102 shown in Figure 6 is a display element. The display element is adapted to attach to the game surface of the monitoring device 20. It is further adapted to display a certain amount of information. The display element comprises a removable surface 104, a screen 106, an electronic card, not shown in the figures, and a second microcontroller, not shown in the figures.

The removable surface 104 is intended to ensure the fixing of the display element on the playing surface.

According to the example described, the removable surface 104 is formed by a cavity.

The cavity has a complementary shape of protruding shape of the studs 42.

In particular, the cavity comprises pellets, not visible in the figures, adapted to cooperate with the contacts 43. The cavity comprises, for example, as many pellets as contacts 43. Once the pellets in contact with the contacts 43, the display element is then able to be powered electrically by the battery 50 of the housing 30.

The supply voltage of the display element is 3.3V.

In addition, the communication with the electronic elements of the housing 30 is then possible, by means of the contacts 43 adapted to the UART links.

In addition, the removable surface 104 comprises complementary orifices of the pads 42, the orifices having a diameter slightly less than that of said pads 42 to provide a certain rigidity in fixing the assembly. The screen 106 is, for example, an LCD display, the English liquid crystal display. The screen 106 has, for example, a length of 70 millimeters and a width of 25 millimeters of the dimensions and the visible part of the screen 106 has a length of 65 millimeters and a width of 20 millimeters. The screen 106 is configured to display, in particular, the hour, minutes, the estimated level of charge of the battery, illustrative pictograms of the carrier's diary and SMS sent, for example, by the parents.

In a particular case, the display element comprises a sunshine sensor for estimating the sunshine received by the carrier of the monitoring device 20. The display element is devoid of any human-machine interface. In fact, the display element does not include, for example, no light or "buzzer". In fact, an alert will be, for example, transcribed by a flashing screen 106.

Alternatively, the removable module 102 is a game element, not shown in the figures. The game element has a planar area comprising a complementary pattern with the pads 42. The game element is devoid of memory, a source of autonomous energy. In general, the game element is devoid of any electronic element. By way of illustration, the game element is a figurine, a mirror, a surface on which stickers are glued, etc.

The second microcontroller is adapted to manage the electronics of the electronic card using an embedded software. The second microcontroller is adapted to manage and optimize the electrical power supplied by the monitoring device 20, to control the screen 106 and to communicate with the monitoring device 20.

The second microcontroller includes a controller, LCD adapted to control the multiplexed type LCD display, and a real time clock. The invention which has just been described has advantages.

First, the ergonomics are improved compared to child monitoring devices of the state of the art. In this context, the ergonomics correspond to dimensions of the monitoring device 20 and a general shape better adapted to the morphology of the child.

In particular, the fact that electronic elements are distributed both in the central portion 36, in the first lateral portion 38 and in the second lateral portion 40 provides a housing 30 adapted to the wrist of a child of 3 in 10 years.

In addition, the housing 30 does not protrude on either side of the wrist of the child while having a reduced thickness.

Secondly, the monitoring device 20 is designed in a modular way. This makes it possible to adapt the monitoring device 20 to several uses.

For example, a toddler, 3 years old for example, does not need a display element. Moreover, such an element has little interest for him but the child can still play with the studs 42.

For a larger child, keeping the same monitoring device 20, the child can add a display element.

The monitoring device 20 is progressive in time and adapts to the needs of the child.

In addition, the monitoring device 20 is also scalable with respect to technological advances. Indeed, the monitoring device 20 may, for example, be remote control from the server 14 or serve as a base for a wide variety of existing or future removable modules.

This good adaptation to the age of the child results in increased security since the child sees an interest in keeping the monitoring device 20 since the child perceives the monitoring device 20 as a play device. Other embodiments can be envisaged for the monitoring device 20 by combining all the variants previously described provided that these variants are technically compatible.

Claims (8)

1. - Monitoring device (20), the monitoring device (20) being intended to be worn by a wearer comprising a forearm and a wrist, the monitoring device (20) comprising: - electronic elements, - a microcontroller (60) electrically connected to the electronic elements, the microcontroller (60) being adapted to control the electronic elements, - a battery (50) supplying the electronic elements and the microcontroller (60), - a housing (30) delimiting an interior space total having an interior volume, the electronics, the microcontroller (60) and the battery (50) being located in the total interior space, the housing (30) having a central portion (36), a first side portion (38) and a second lateral portion (40), - a bracelet (28) connecting the first lateral portion (38) and the second lateral portion (40), the bracelet (28) defining a closed position wherein the monitoring device (20) is held around the wrist of the wearer, the central portion (36) of the housing (30) having, in the closed position, a first extension along a first direction (X-X ') parallel to the forearm of the wearer and a second extension along a second direction (Y-Y') perpendicular to the wearer's forearm, the ratio of the second extension to the first extension being included between 50% and 80%. 2, - Monitoring device (20) according to claim 1, wherein the housing comprises a wall, the wall of the housing (30) comprising a playing surface (S2), the playing surface (S2) comprising pads (42). ) and contacts (43), the pads (42) being adapted not to let any electric current, the contacts (43) being adapted to be electrically powered, the pads (42) extending outwardly of the housing (30). 3. - Monitoring device (20) according to claim 1 or 2, wherein the first extension is smaller than the second extension. 4, - Monitoring device (20) according to any one of claims 1 to 3, wherein the ratio between the first extension and the second extension is between 65% and 70%. 9. - surveillance system (100) according to claim 8, wherein the removable module (102) is selected from the group consisting of: - a game element, the game element being, furthermore, devoid of element electronic, and - a display element, the display element being adapted to be electrically powered by the housing (30), the display element comprising a second microcontroller and a screen (106), the second microcontroller being adapted to control the screen (106) from commands transmitted by the microcontroller (60) of the monitoring device (20), the display element being, furthermore, devoid of human-machine interface. 10. - Monitoring infrastructure (10), the monitoring infrastructure (10) comprising: - a telecommunication network (12), - a geolocation network (18), - at least one server (14), the server ( 14) being connected to the telecommunication network (12), - at least one monitoring device (20) according to any one of claims 1 to 7, the monitoring device (20) being able to communicate with the telecommunication network ( 12) and with the geolocation network (18), and - at least one mobile terminal (16) adapted to transmit / receive data to / from the server (14) via the telecommunication network (12). 5. - Monitoring device (20) according to any one of claims 1 to 4, wherein the first extension has a length of between 30 millimeters and 40 millimeters. 6. The monitoring device according to claim 1, wherein the electronic elements comprise at least one element from the group consisting of: ), the geolocation block (62) being adapted to receive geolocation data from a geolocation network (18), - a communication block (64), the communication block (64) being adapted to implement radio communications with a telecommunication network (12), - an accelerometer (66) adapted to detect movement of the monitoring device (20), - a power supply unit (68) for distributing the electrical energy between the microcontroller (60) and contacts (43), and - a charger (70) adapted to receive electrical energy from an external source of electrical energy. 7. - Monitoring device (20) according to claim 6, wherein the microcontroller (60) is adapted to implement communication rules for managing data transmitted from the communication block (64) to the telecommunications network (12) and data transmitted from the telecommunications network (12) to the communication block (64), the communication rules of prohibiting the transmission of data from the carrier to the telecommunications network (12), the data of carrier defining the data generated on the personal initiative of the carrier, the communication rules of prohibiting the exchange of voice type data between the monitoring device (20) and a mobile terminal (16). 8. - Monitoring system (100) comprising a monitoring device (20) and a removable module (102), the monitoring device (20) being according to any one of claims 1 to 7, the removable module (102) being adapted to attach to the housing (30) of the monitoring device (20), the removable module (102) being devoid of memory and autonomous power source.