BLACK BOX INTENDS TO BE FIXED UNDER a LID Of a GLANCE

A microelectronic package located under a cover of a manhole, and a modular electronic assembly comprising such an electronic housing.

There are electronic packages, such as packages counting vehicular and pedestrian that are disposed within the manhole, to avoid external aggressions.

In order to raise the data stored in these electronic packages, a technician is to be regularly lifting the manhole cover and downloading said data of the memory of the electronic package in question to a downloading unit, such as a portable computer.

The downloading is carried out, for example, via wireless communication, such as Bluetooth link.

Download of the data requires thus the lifting the cap and replaced which is a long and difficult working.

An object of the present invention is to provide an electronic package which avoids the disadvantages of the prior art and which in particular allows a downloading of data that it contains without being influenced by the cover that protects the.

To this end, is provided an electronic package designed to be fixed under of a manhole cover, the cover comprising at least a first fastening means and a through housing, comprising:

-a shell having a top face,

-for the or each first attachment means, a second fixing means for cooperating with said first fixing means for securing said shell under the cover,

-electronic components includes a wireless communication module, and

-a control module for passing said wireless communication module from an idle mode to an active mode,

said control module comprising a sensor capable of reacting in the presence of a wake-up device, projecting with respect to said upper face and to be housed in said housing.

In a particular embodiment, each first fixing means is a through hole with a counterbore, and each second fixing means is a screw whose head is supported on the spotface and which the threaded rod extends through said through hole to be screwed into the shell in a hole provided for this purpose.

In a specific embodiment, each first fastening means and each second attachment means together form an elastic connection.

Advantageously, each first fixing means is a through hole with a counterbore, and each second fastening means comprises, on the one hand, a screw, the head faces of the said counterbore and which the threaded rod extends through said through hole to be screwed into the shell in a hole provided for this purpose, and, on the other hand, a spring disposed between said head and said counterbore.

Advantageously, the electronics housing has a projection in which the sensor is embedded.

Advantageously, the shape of the projection conforms to the shape of the housing.

Advantageously, the tongue is made of a flexible material.

Advantageously, the protrusion is transparent in the wavelength range used.

Advantageously, the interior of the shell is divided into a central compartment for receiving the electronic components and at least one side compartment for receiving a source of electrical energy.

Advantageously, the electronic components are embedded in a resin filling said central compartment.

The invention also relates to a modular electronic assembly comprising an electronic package claims according to one embodiment, a housing and complementary electronic removably attached in said electronic box.

Advantageously, the attachment is performed by means of a bayonet fixing.

The features of the invention mentioned above, and other, will appear more clearly upon reading of the following description of an exemplary embodiment, said description being made in connection with the accompanying drawings, of which:

figure 1 represents an electronic package according to the invention,

figure 2 is a cross-sectional view of an example of electronic implantation of the housing of Figure 1,

figure 3 represents a complementary electronic housing for a modular electronic assembly according to the invention,

figure 4 is a bottom view of the electronics housing of Figure 1, and

figure 5 shows a variant of implantation of the housing electronic.

In the description that follows, the terms relative to a position are taken with reference to an electronic package arranged vertically, i.e. as represented in Figure 2.

Figure 1 shows an electronic package 100 according to the invention,

Figure 2 exemplifies the implantation 200 of the electronics housing 100 in a manhole 202 placed in the ground 50.

The viewing 202 herein takes the form of a cylinder 204 and a cover 206.

The electronic package 100 may be any device to which a technician must have access to check or with which it is to communicate to retrieve data that its memory contains.

The electronic package 100 may be a housing of counting of vehicles or pedestrian, an electric meter, a gas meter, a water meter, andc.

Inside the electronic package 100 208 are arranged the electronic components necessary for its operation.

The electronic package 100 includes a shell 102 which is in the form of an inverted cup, i.e. that the base of the dish is at the top and forms the top of the shell 102 and the opening of the bowl will be low, thereby avoiding the infiltration of water by runoff.

To close the opening of the shell 102, the electronics housing 100 comprises a wall removably mounted in the shell 102. For sealing of the electronics housing 100, a silicone seal is disposed around the wall and mounted.

To avoid that the electronics housing 100 is at the bottom of the dry well 202 which can be flooded, the electronics housing 100 is fixed beneath the lid 206.

To this end, the cover 206 has at least one first fastener 210, and the electronics housing 100 comprises, for each first fixing means 210, a second attachment means 212, for cooperating with said first fixing means 210 to secure the electronics housing 100 under the cover 206.

In the embodiment of the invention presented in FIGS. 1 and 2, the first fastening means 210 are two in number and each take the form of a through-bore with a counterbore 210, 212 each second fixing means takes the form of a screw whose head is supported on the spotface and which the threaded rod extends through said through hole to be screwed into the shell 102 in a hole 104 provided for this purpose.

In the case of an electrical box 100 from which data is to be raised through a wireless communication, the electronic components 208 comprises a wireless communication module, such as a radio communication module (Bluetooth), or light (infrared), andc.

In the case of an electronic package 100 self-powered, i.e. including its own power source, the power consumption is to be limited to ensure longer service life of the power source.

Or, a wireless communication module is highly consumer and to limit its consumption, the electronics housing 100 also includes a control module 214 for passing the wireless communication module from an idle mode to an active mode.

In the active mode, the wireless communication module is operational and adapted to transmit data and receive instructions.

In inactive mode, the wireless communication module is not operational.

In order to raise the data stored in the memory of the electronics housing 110, the technician must act on the control module 214 which controls passage of the wireless communication module, the dormant mode to the active mode.

When the wireless communication module is active, the technician relates to the data using such as a computer or other connected to said wireless communication module through a wireless link.

To be able to act on the control module 214, thereof is to be provided at least in part, accessible from outside the manhole 202.

To this end, the eye 202, and more particularly the cover 206 includes a housing 216 which takes the form of a hole through the cover 206, and the control module includes a sensor 218 214 type non-contact sensor, such as a magnetic sensor, which projects from the top side of the vehicle body 102 and is stored in the compartment 216.

The sensor 218 may be, for example, a reed switch, also called 'ILS' or' reed switch '.

The sensor 218 is provided to react in the presence of a wake-up device without contact, such as a magnetic key.

For reasons of mechanical guards, the sensor 218 must remain within the housing 216 and not to output out of the manhole 202. The first fastening means 210 and the second fastening means 212 are designed to allow the adjustment of the position of the electronic package 100 under the cover 206 such that the sensor 218 does not out of the manhole 202.

Therefore, when a technician for elevating the data stored in the electronics housing 100, it approaches the wake-up device of the sensor 218, thereby actuating the sensor 218 and triggers the control module 214, the command causes the passage of the wireless communication module, the dormant mode to the active mode.

After the transfer of data and after a certain time, the wireless communication module passes from the active mode to the inactive mode.

Insertion of the sensor 218 in the housing 216 of the lid 206 can be toggle the wireless communication module the dormant mode to the active mode, and download the data contained in the electronics housing 100 without having to handle the cover 206.

To protect the sensor 218, thereof is embedded in a protrusion 106.

To prevent the foreign matter gets between the projection 106 and the wall of the housing 216, the shape of the protrusion 106 conforms to the shape of the housing 216.

In the embodiment of the invention presented in FIGS. 1 and 2, the protrusion 106 is in the form of a cylinder.

It is possible that a foreign body, as a pebble, becomes lodged at the top of the protrusion, and as a vehicle or a pedestrian overwrites the stone on the protrusion 216. To prevent the protrusion 216 is achieved by the action of the stone, it is made of a flexible material such as a thermoplastic elastomer SEBS type with a hardness of the order of 60 shore.

May also be provided that the electronic components 208 include diodes, either light emitting diodes which are turned on to inform the technician on the state of the control module 214 and/or the wireless communication module, corruption or infrared communication diodes.

To this end, the protrusion 216 is transparent in the wavelength range used for guiding waves diodes out, and vice versa.

The electronic package 100 may be associated with at least one complementary electronic housing 252 to form a modular electronic assembly 250.

Figure 3 shows the shell of the housing 302 and complementary electronic 252 Fig. 4 shows the opening of the shell 102 of the electronics housing 100.

Complementary electronic The housing 252 can be of the same type as the electronics housing 100 and is preferably electronically connected to the latter by a connection cable in order to communicate with it, or the computer of the technician.

The modular electronic assembly 250 takes the form of a column that is herein made of the electronic package 100 of the housing and complementary electronic 252 that are removably attached one above the other.

The shell of the housing 302 complementary electronic 252 has the same shape as the shell 102 of the electronics housing 100. The shells 102 and 302 have a profile that flares progressing towards their respective opening, and the socket of the housing to the electronics housing 100 electronic complementary 252 is facilitated.

Attachment of the complementary electronic housing 252 in the electronics housing 100 is implemented using a bayonet attachment system.

The shell 302 has at least two bayonets 304 that project outwardly from the shell 302 on top thereof.

For each bayonet 304, the electronics housing 100 has at its opening, a slot 404 for receiving said bayonet 304 and maintain rotation of the housing after a complementary electronic 252. To provide a keyless locking, the widths of the slits 404 taper to engage the bayonet fittings 304.

Of course, the complementary electronic housing 252 also includes the same slots 404 to permit the attachment of any other complementary electronic housing.

The interior of the shell 102, 302 is divided into a plurality of compartments. In particular, the plurality includes a central compartment and two side compartments 406 408 disposed on either side of the central compartment 406.

The central section 406 is used to accommodate the electronic components 208 which are embedded in a resin filling said compartment to ensure a good seal to the water.

Each side compartment 408 is for receiving a source of electrical energy, such as a battery.

Figure 5 shows an electronic package 100 is arranged so as to be elastically fastened under the cover 206. The presence of a elastic connection makes it possible to facilitate driving of the electronic package 100 when an outer member pressed, for example on the protrusion 106, that it is formed of a flexible material or not.

To this end, each first fixing means 210 and each second fixing means 212, 502 together form said flexible connection.

In the embodiment of the invention shown in Fig. 5, each first fixing means 210 is a through hole with a counterbore, and each second fixing means 212, 502 comprises, on the one hand, a screw 212 which the head comes facing said spotface and which the threaded rod extends through said through hole to be screwed into the shell 102 104 in the hole provided for this purpose, and, on the other hand, a spring 502 arranged between the screw head and the counterbore.

The spring 502 is a compression coil spring, but it may take another form as long as the downward movement and resetting of the electronics housing 100 are provided.

Of course, the present invention is not limited to the examples and embodiments described and represented, but it is capable of many variations accessible to those skilled in the art.