WO2014167144A1

WO2014167144A1 - Monitoring and safety device and system

Info

Publication number: WO2014167144A1
Application number: PCT/ES2013/070234
Authority: WO
Inventors: José Ramón MEDINA DÍAZ
Original assignee: Adaro Tecnologia, S.A.
Priority date: 2013-04-12
Filing date: 2013-04-12
Publication date: 2014-10-16

Abstract

The invention relates to a system and device for improving the monitoring and safety of workers at a pre-determined location. The system comprises: a set of cap lamps (devices), known as primary nodes, including a lighting device, a lighting control module, a transmission and reception module that connects the lamp to a wireless network, and a general control module that controls the operation of the transmission and reception module and of the lighting control module. The lamps transmit messages to a central unit and receive messages from the central unit via the aforementioned wireless network. At least one lamp, known as the routing node and comprising a transmission and reception module, transmits messages that it receives from other lamps to the central unit and transmits messages received from the central unit, and directed to at least one other lamp, to the relevant lamp. At least one central unit, which communicates with the routing nodes, receives information from the primary nodes, processes said information and transmits orders to the primary nodes in accordance with the processed information.

Description

CONTROL AND SECURITY SYSTEM AND DEVICE

D E S C R I P C I O N TECHNICAL FIELD OF THE INVENTION

The present invention has its application in the field of management, control and safety of workers and more specifically, it proposes a system and device to be used by said workers and that provides a significant improvement in the control and safety of workers.

BACKGROUND OF THE INVENTION

In the groups of professionals, whose work is carried out in hostile environments and with a high level of risk (fire departments, petrochemicals, mining ...) it is essential to control the parameters of said workers (position, state ...) and Rapid detection and management of dangerous situations.

Therefore, it is necessary that these professionals are usually provided with an individual service and protection team, but at the same time it is essential that said equipment have characteristics (of volume, weight ...) that allow the worker to correctly perform his activities Many times they involve great physical effort.

Especially in the field of underground mining, the control and safety of professionals is very important but at the same time the extreme working conditions do not make it advisable to use heavy equipment, with large batteries and difficult to handle.

Existing systems so far offer a degree of control and safety of workers well below what would be desirable and / or require the use of impractical and unmanageable equipment that hinder the usual tasks of these workers.

SUMMARY OF THE INVENTION

The present invention solves these problems by proposing a system and devices that offer a high degree of control and safety of workers, through light equipment, low consumption and easy handling both from the point of view of the worker who carries them and from the point of view of the administrator and controller of such equipment.

In a first aspect, the present invention describes a system for improving the control and safety of workers in a given location, characterized in that the system comprises:

- A set of helmet lamps called primary nodes, each of which comprise a lighting device located on the front of the lamp, a lighting control module (13) that controls the lighting device, a transmission module and reception that connects said lamp to a wireless network and a general control module (19) that controls the operations of the transmission and reception module and the lighting control module, where said lamps send messages to a central unit and receive messages from said central unit via said wireless network.

- At least one lamp called a routing node, comprising a transmission and reception module that connects said routing node to the wireless network and that sends the messages it receives from other lamps to the central unit and sends the messages received from the unit central directed to at least one other lamp, to said at least one other lamp.

- At least one central unit, which communicates with the routing nodes through the wireless network and is responsible for receiving information from the primary nodes, processing said information and sending orders to the primary nodes according to said processed information.

Each primary node may periodically send and / or at the request of the general control module, a message addressed to the central unit, said message including an indication of the location of the primary node within the location or the battery status of the primary node. This location indication can be the number of routing nodes that it detects with a certain signal level.

There may be a primary node for each worker that you want to control and, in the central unit, each primary node is associated with a worker.

In one embodiment, the wireless network is a wireless network according to the IEEE 802.15.4 protocol.

In one embodiment, each primary node further comprises a motion sensor. If this motion sensor indicates that the primary node remains motionless for a certain period of time, the primary node can send an emergency message to the central unit and when the central unit receives said emergency message, the central unit can send a message emergency to said first primary node and to those n primary nodes whose location is closest to said first primary node, where n is a design parameter.

When a primary node receives an emergency message, the general control module can give an order to the lighting control module so that the lighting device flashes with a certain first frequency for a first certain period of time.

In one embodiment, if the location sent by a primary node is in a certain area that is marked as not allowed for said primary node, the central unit sends a warning message to said first primary node and when the primary node receives said message. The control module gives an order to the lighting control module so that the lighting device flashes at a certain second frequency for a certain time. Said flickering can be repeated periodically until the primary node changes location.

In one embodiment, the primary nodes additionally comprise a button that can be manually operated by the worker carrying said primary node and when, after receiving a primary node a message, the user presses said button a certain number of times, the primary node it will issue a message to the central unit indicating that the worker has understood said message and where, when the central unit receives said message, the central unit stops sending the emergency message or warning to said primary node.

In another aspect, the present invention describes a helmet lamp for improving control and safety in a given location, characterized in that it comprises: - A lighting device located on the front of the lamp.

- A lighting control module (13) that controls the switching off and on of the lighting device

- A transmission and reception module that connects said lamp to a wireless network, allowing the sending and reception of messages to and from other nodes of the wireless network.

- A control module (19) that controls the operations of said transmission and reception module and said lighting control module. In one embodiment said helmet lamp sends messages to a central unit and receives messages from said central unit via said wireless network and where said transmission / reception module periodically sends a message directed to a central unit including said message indicating the location of the lamp inside the location and where the general control module sends operating orders to the lighting control module based on the messages received from the central unit through the wireless network.

Said lamp may comprise a button that allows the user of said lamp to activate or deactivate the lighting device.

In one embodiment, the lamp performs the repeater functions between other lamps and a central unit, sending the messages it receives from other lamps to the central unit and sending the messages received from the central unit addressed to at least one other lamp, to said Less another lamp.

Said lighting device may consist of 2 light sources, a main light source and a secondary light source. The 2 light sources may be located in non-symmetrical positions with respect to the horizontal axis of the lamp, the secondary light source being further away from the horizontal axis of the lamp than the main light source.

In another aspect, the present invention describes a helmet that includes a lamp according to any embodiment described above.

DESCRIPTION OF THE DRAWINGS

To complement the description that is being made and in order To help a better understanding of the characteristics of the invention, in accordance with some preferred examples of practical embodiments thereof, a set of drawings is attached as an integral part of this description, where, for illustrative and non-limiting purposes, represented the following:

Figure 1 shows a block diagram of the structure of a helmet lamp according to the present invention.

DETAILED DESCRIPTION OF THE INVENTION

This detailed description is provided to help a complete understanding of the invention. Therefore, those skilled in the art will recognize that variations, changes or modifications of the embodiments described herein can be carried out without departing from the scope of protection of the invention. Also, the description of functions and elements well known are omitted for clarity and conciseness.

The system proposed in the present invention provides a high level of control and worker safety. To do this, it converts the individual lighting system of these workers into a wireless communications network, capable of sharing data with a central control unit, which can be located in the mining facility itself or anywhere else, via online. That is why it has been called SICS system (wireless control and security system)

This SICS system is especially useful in the case of miners, but it can also be used in other types of scenarios where high security and control of workers in a given space (firefighters, rescue operations) is needed.

This wireless network can use any of the existing wireless network protocols (for example, the IEEE 802.15.4 protocol although other types of wireless network protocols such as bluetooth or any other can be used) and base its architecture on 3 basic elements:

-a central control team, also called a central unit where, among other functions, the data is processed and presented.

-a series of intermediate routers (routing nodes) distributed around the site (for example, the mine) where the workers are located.

-a series of primary nodes (which are the nodes to be controlled). In addition there are other complementary elements such as power supplies, fiber optic adapters, media converters and wireless network coordinators among others. The network coordinators, usually one per network, are a kind of special routers that establish and control the network and the routes that the different nodes must follow to connect with each other.

The primary nodes do not usually have a direct connection to each other, so to send their data to the central unit they need to connect to the routing nodes (distributed throughout the site), which channel the data from the nodes to the central unit or vice versa.

The wireless network coordinator and the central unit can communicate, for example, through an ETHERNET network. In safety installations in locations where there is a danger of explosions, such as in a mine, the connection between the indoor and outdoor network is It is done through a media converter, which serves as an interface between the coordinator and the fiber optic cable. The fiber optic cable is used for the Ethernet network connection inside the mine: outside, however, copper cable is usually used. The media converter thus serves to separate, from the point of view of security, both zones: Safe and Non-Safe.

The usual lighting equipment (for example, the lamps installed in a helmet, called helmet lamps) that the workers carry, in addition to performing their main function, illuminate, are conveniently adapted to configure the nodes of the wireless network. They are obviously powered by a rechargeable battery and have a safe area (e.g. lamp shop), for daily recharging.

As routing nodes you can also use lamps (which can even be helmet lamps) properly configured to which an external antenna is placed. As their locations are fixed, and their permanent operation, they must have their own charging equipment inside the mine, powered by a power source, which does not require a battery with UPS function (uninterruptible power supply), since Each router has its own battery.

That is, existing helmet lamps are conveniently adapted (as will be explained later, by adding modules of transmission and control, antennas ...) so that they function as primary nodes or routing nodes of the wireless network. These helmet lamps that conveniently adapted function as nodes of the wireless network can be helmet lamps of any type. In one embodiment said lamps are lamps of the type ALFA-WL manufactured by Adaro Technology and described in the patent (WO2010 / 12507) but other types of existing helmet lamps can be used.

The other equipment: coordinator and media converters, require power supplies, which have UPS function. In the case of a mine, all the equipment that configures the network, and that must work inside the mine, must be certified for use in areas at risk of explosion.

Helmet lamps are the main element of the system. They can act as a primary node (in that case they can carry an indoor antenna of smaller size and, therefore of smaller range) or as routers (in that case they usually carry an outdoor antenna, which protrudes over the lamp, larger and therefore of greater scope). In the case that they function as a primary node, the lamps will be installed in the workers' hull (and therefore, they will move with them) and in case they fulfill the function of routers, they will normally be in fixed locations of the site.

Figure 1 shows, in a block diagram, the structure of these helmet lamps that act as primary nodes or routing nodes of the wireless network.

In one embodiment, the helmet lamp has two light sources, (which can be for example LED diode): a main light (1 1) and auxiliary or secondary light (12), which are located in the front of the lamp and that they are displaced, in relation to the horizontal axis. In one embodiment, this displacement is not symmetrical and the secondary light source is usually more displaced from the horizontal axis than the main one (for example, in one embodiment the main light is located at an angle of 30 degrees and the secondary one at a degree of 53 degrees), in order to achieve a projection of the main light in the axis of the user's vision, and a projection of the secondary auxiliary light directed downwards, with the intention of illuminating the passage area. Naturally, the main light is usually more powerful than the secondary light. These light sources are controlled by a lighting control module (13) that controls the switching off and on of the light sources. The interface of these lamps with the user can be done, for example, by a push-button accessible by the user carrying the helmet lamp. However, the control of these light sources can also be automatic (even remotely controlled) as we will see below.

In one embodiment, in order to prevent glare, in relation to another user (worker) who came in the opposite direction, the helmet lamp detects, by means of a sensor that reacts to the light, this situation and proceeds, automatically, to the ignition of the auxiliary light in both facing lamps.

Once this glare situation changes, the helmet lamp is restored to its normal operating state.

The hull lamp can use, as a power source, a rechargeable battery (14) controlled by a battery control module (15) that acts according to its main parameters. For example, it can proceed to disconnect it, in the case of having reached the optimum loading point, or in the case of detecting any anomaly in relation to the normal parameters of the discharge. The charging contacts (16) are designed in such a way that, in combination with a housing and contact system located in the charging equipment, it guarantees a setting and removal of the charging point of the helmet lamp: safe, comfortable and easy for the user. To carry out the load, the helmet lamp in one embodiment has a fastening hook that locks into the magazine and slides until it stops. Moment in which the balls with spring of the contacts of the charger, lodge in the contacts of load of the lamp of helmet. The undulations provided on the clamping hook, press on the internal walls of the socket, keeping the load connection stable.

These helmet lamps, apart from lighting, act as a node of a wireless network. For this purpose, said lamps contain a reception transmission module (17), Tx / Rx (which in one embodiment works at the 2.4GHz frequency, although other frequencies are possible) that connect said lamp to a wireless network according to the protocol follow the network (for example IEEE802.15.4.); This guarantees no interference with any other equipment, even on the same frequency that is operating in the vicinity of the wireless system.

These transmit / receive modules allow communication of the lamp with the central unit (central control equipment) through the different routers of the wireless network according to the mentioned protocol. The communication between the central unit and the nodes of the wireless network allows obtaining the control and maintenance data, which structure the operating bases of the SICS system and will be described below. Of course, said Tx / Rx module incorporates an antenna (18) to perform wireless communications.

As explained above, the wireless system is structured based on a series of routing units or routers (fixed hull lamps conveniently configured, for example, with a specific assembly program, and equipped with a larger external antenna), that properly distributed inside the site (for example, of the mine) channel, to / from a central unit, the information acquired by the helmet lamps that function as primary nodes (helmet lamps conveniently configured, for example, with program specific assembler and equipped with indoor antenna). Said central unit can be for example a server and be located in the same location (for example in a control room) or be a remote central unit located outside the site. There can also be several central units each in charge of a certain area. That is, the hull lamps can function as routers or as primary nodes, for this, the transmission modules (17) and control (19) of the hull lamps are properly configured (with a specific assembly program to work from the desired way). In the case that they function as routers, these lamps will not be associated with a worker but will have a fixed location. Their number will depend on the surface to be covered.

These primary nodes make up the majority of the system units (of course there are many more primary nodes than routers). Normally there will be one primary node per worker that you want to control through the SICS system (which can be all the site workers or only those whose activity is more delicate or risky). Each helmet lamp of the SICS system that functions as a primary node is associated with a specific user (who will be the worker who wears the helmet with said helmet lamp) personally. This association will be stored in a database of the central unit where each primary node will be associated with a series of data such as, for example, helmet registration number, personal data of the worker wearing the helmet with said primary node (worker number, name, age ...) and service data of said worker ... These data can be updated periodically.

The control of all these operations of the hull lamp is carried out from an intelligent general control unit (19) based on a microcontroller, whose internal assembly program detects, analyzes and executes the planned actions to obtain the desired operation.

In one embodiment, the helmet lamp is mono block, and therefore does not need any connection cable, between focus and battery, such as classic lamps.

In one embodiment, the helmet lamps include a sensor that indicates whether the helmet lamp is moving or not (for example, an accelerometer) whose reading is controlled by the general lamp control module. Thus, the mobility status of a worker can be controlled so that when the general control module detects that the helmet lamp is not moving (that is, the accelerometer reading indicates that there is no movement) for more than a certain period of time. period, the helmet lamp sends an alarm signal (called "dead man") to the central unit.

The wireless system of the present invention (by means of data sharing and communication between helmet lamps and the central unit) allows to perform numerous functions and actions that provide a high level of control and safety of workers. In the following, some of the operating procedures of said wireless system will be explained in embodiments of the present invention that allow performing said control and / or security functions.

The proposed system is mainly a security system, but not the site itself (the mine); that is to say, it is not a security system that controls the atmosphere of the mine or that remotely controls equipment or machines or that can automatically interrupt electrical power nor is it essentially a system that takes data on the state of the site (eg concentration of methane gas) and send alarm messages that warn of certain hazards according to the data taken from the site. But it is a worker control and safety system; so it is based on control and obtaining data on the status of each of the workers.

Thus, the proposed system allows to know the location of personnel inside the mine in real time, which is essential in case of an accident. It allows to know if an operator is in a situation of immobility (the so-called "dead man") and allows to send, at the will of the worker himself, an emergency message related to his own situation.

It also allows to send an alarm signal to the worker about any dangerous situation, to check their status or to take any action. It also provides data for the maintenance of the helmet lamps themselves that form the nodes of said wireless system. All this data is stored in a central control unit and is available for consultation.

In one embodiment, in case you want to signal a message from a user (worker who wears the helmet), said signaling of the different alarms is done through the two light sources: main and secondary, of the lamps helmet, by flashing them. The two light sources are combined and the frequencies of the flicker are modified to indicate different messages to the user. The frequency parameters of the flashes, the sequence of repetition of the same and the scope or area of action, galleries, zones etc., where they must be activated, can be programmable from the central unit.

The use of light signals instead of voice messages allows them to be more easily detected by the worker (even in locations with high noise levels), at a greater distance. In addition, the fact that the communication between the central unit and the node is not a voice message, supposes an energy saving of the transmission / reception elements of the system and allows them to be smaller and more easily transportable.

The situations in which a signal is generated can be for example the following:

a) Dead or stationary man alarm: As explained above, helmet lamps that act as a primary node can include a sensor that indicates whether the helmet lamp is moving or not.

If a time is exceeded (which can be set by configuration from the central unit), without the helmet lamp (or what is the same as the user who carries it) moving (that is, the accelerometer reading indicates that no there is movement), the helmet lamp sends an alarm signal to the central unit. An optical alarm is triggered in the central unit (which may be accompanied by an acoustic signal to reinforce it) and the user data to which the lamp has been assigned is presented on the central unit screen, the time at which it is assigned It has produced the alarm and the place, area / gallery, where it is located.

At the same time, the system automatically manages the sending of an alarm order to the lamp that has remained motionless. Optionally, also, the system obtains the identification of those lamps closest to the one that has remained motionless (in configurable number in the central unit) in order to notify them so that they can respond to the urgency as soon as possible. When the control module of a lamp receives an alarm signal from the central unit, it acts on the lamp lights according to the order received, for example, causing the main light source of the lamps involved to flash for a few seconds. . This flickering is repeated periodically indefinitely, while remaining immobile, for the injured, in order to fix their position, and for a period of time, defined by configuration, for the assistance personnel. The way of acting on the lamps may already be predefined in the control module of each lamp (for example, when an alarm order is received, the main lamp flashes in periods of 2 seconds) or it may be included in the order of alarm received from the central unit.

Of course, this procedure can be deactivated at certain times (for example, when the worker is in his rest time, when the primary node is charging the battery ...) to prevent false alarms from occurring. In one embodiment, in case of a false alarm, the user who generated the alarm, upon realizing that he has received an alarm message, can contact the central unit to indicate that it is a false alarm. This can be done, for example, by intermittently pressing the control button on the helmet lamp. b) Worker emergency alarm: An alarm voluntarily caused by the user, and perfectly identified in the central unit, can be activated, for example, by uninterrupted pressing, for a few seconds, of the control button on the helmet lamp. When the central unit receives this signal from a user, the central unit activates an alarm signal equal to that of section a) and with the same process (among other things, they are presented on the screen of the central unit the data of the user to whom the lamp has been assigned, the time in which the alarm has occurred and the place, area / gallery, where it is located, manages the sending of an order to the lamp which has generated the alarm and the lamps closest to it in order to address the urgency as soon as possible ...). c) Encoding notices: From the central unit, signal management orders can be sent individually or collectively so that the lamps (s) involved begin to blink frequently and cadence previously configured, in order to be interpreted by the users As orders received. These orders can be of any type. For example: abandonment of work, change of shift or zone, zone not allowed etc. That is to say, if, for example, it is detected in the central unit that a user is in an area that is not allowed, or in an area that does not correspond to his work, he can send a signal to the lamp of said user so that it begins to flash; Upon seeing it, the user will know that he is being warned that he is in a suitable area. The frequency and rate of blinking can vary according to the warning that the worker wants to give and he (previously knowing the meaning of the signal according to its frequency and cadence) can fully understand the message received without the need for voice messages.

In one embodiment, the worker can act on the hull lamp control button and the control module will cause the transmission module to send a message to the control unit that it has received the message and understood it; so that the control unit stops sending it.

In addition, in one embodiment, the proposed system allows to know the location of personnel inside the mine in real time. For this, each lamp (node), periodically transmits (or upon request of the central unit) a message for each router with which the communication has a signal level greater than a threshold established in the control module. This filter condition forces an approach between the hull lamp and the router, to achieve a satisfactory level. The message identifies the lamp and router identification code and the communication signal level. Since routers are located at fixed and studied points of the site, and that the level established as a threshold can be related, with sufficient accuracy, to the distance in meters Between helmet lamp and routers, from this message, the central unit can determine at any time, the location of the user on the farm. This location can be used for example, to facilitate rescue in the event of an accident, to notify you if you are in an area not allowed ...

For the location of each worker to be sufficiently accurate, the number of routers must be adequate. The more routers, the better the accuracy but the cost of the system will also increase, so you have to reach a compromise between both parameters.

Also, the number of routers must be adequate for the communication network to be complete (that is, it reaches all possible locations of the primary nodes). In one embodiment, when the installation is done and the routers are located in the planned places, the system has a signal level meter that, through the flickering of the light sources of the hull lamp that acts as a router , (for example, slow, good signal level, and fast, minimum signal), allows to determine the number of routers necessary for the establishment of the communications network, in order to favor that the links between routers are correct (depending on of the distance between them and of the signal levels received by each node).

In one embodiment, the system also provides data for the maintenance of the helmet lamps themselves that form the nodes of said wireless system. The helmet lamps, nodes, periodically transmit a message in which, among other data, they provide a series of important parameters for their maintenance: Battery voltage, internal temperature, charge / discharge status, operating hours. .. With this data, charge / discharge curves are established, depending on which the battery status can be determined and, if necessary, communicate to the maintenance personnel, the anomaly (for example, by means of a warning on the monitor from the central unit computer) for repair. In case of doubt, the maintenance staff can activate a signal that is sent from the central unit to the corresponding lamp that forces the lamp in question to perform an automatic charge / discharge cycle, and finally issue a diagnosis on the status of The helmet lamp. This avoids situations of total discharge of the lamp that can be quite dangerous for the worker in certain environments.

The light sources of the helmet lamp blink in a coded manner, to inform the user if they are being checked and the result of it.

This procedure allows the monitoring of a remote lamp shop by means of a connection (e.g. via the internet) with the central unit.

As stated above, the data generated by the system is managed by the central unit (or central team). The management (e.g. acquisition, processing and presentation) of this data can be done through a specific software application. This application will allow an administrator of this system, among others, to perform the following tasks:

Register new helmet lamps (either primary nodes or routers). In the case that they are primary nodes, it will allow to associate to that node the data of the worker who carries it.

Present the location of the different workers at any time based on the location information sent by the different nodes, following the procedure explained above.

Present the state of charge of the different lamps from the information of the electrical parameters that the different nodes have sent to you, following the procedure explained above.

- Configure system parameters. For example, the time in which the location of a worker must be immobile to generate the alarm, the number of workers close to the one that generates the alarm that are notified, duration of the warnings to the nodes, duration and frequency of the flashes to the notices, define the areas that are considered not allowed for each worker ...

- Send coded notices to a worker or group of workers.

Obtain statistics, historical and graphs of the different nodes, such as the movement of the worker throughout the day, the areas in which he has been, the number of times the lamp has been recharged ...

And in general, this application facilitates the management of the system and allows to control and configure the different functions that we have explained about this system.

In summary, the present invention proposes a system and devices (helmet lamps) that offer greater control and safety to workers, especially in hostile environments. For this, the system offers the following advantages:

All control data derived from the hours of entries and exits in the different areas and the location of the user inside the installation, are recorded, and once filtered, according to the operator's desire, can be presented in the central unit monitor, in the form of interactive graphics or general purpose listings.

From the point of view of the general maintenance of the lighting installation, all the precise data for monitoring the status of the hull lamp "sics": electrical voltage of the battery, internal temperature of the lamp, state of charge / discharge, and control of the average life of the battery and diodes

(e.g. LED) lighting, can also be registered and can be presented in the central unit.

You can have, in real time, the data of the helmet lamps with problems, and guide the maintenance personnel in the repair of them. From the central unit, online, instructions can be sent for certain helmet lamps to perform control and verification operations automatically.

In reference to the safety of the worker, against the risks arising from the work environment, the system facilitates the user's time location, with respect to a series of control points located in the places determined by those responsible for the installation, and which can obey control or security needs. Appropriate graphics allow to place the workforce in the different established control zones, in almost real time. In addition, automatically, alarms can be generated, of the so-called "dead or fallen man" and that once received are activated in the central unit. As a quick attention resource, the three users, whose location is the closest to the injured, receive an alarm signal to act as first responders. Any user in trouble, and manually, can activate a signal in their lamp to generate an alarm similar to the previous one and with the same results.

Some preferred embodiments of the invention are described in the dependent claims that are included below.

In this text, the word "understand" and its variants (such as "understanding", etc.) should not be construed as excluding, that is, not exclude the possibility that the described includes other elements, steps, etc.

Describing sufficiently the nature of the invention, as well as the manner in which it is carried out in practice, it is necessary to state the possibility that its different parts may be manufactured in a variety of materials, sizes and shapes, and may also be introduced into its constitution or procedure, variations that the practice advises, as long as they do not alter the fundamental principle of the present invention.

Claims

1 . System for improving the control and safety of workers at a specific location, characterized in that the system includes:

- A set of helmet lamps called primary nodes, each of which comprises a lighting device located in the front of the lamp, a lighting control module (13) that controls the lighting device, a transmission module and reception that connects said lamp to a wireless network and a general control module (19) that controls the operations of the transmission and reception module and the lighting control module, where said lamps send messages to a central unit and receive messages from said central unit through said wireless network.

- At least one lamp called a routing node, which comprises a transmission and reception module that connects said routing node to the wireless network and that sends the messages it receives from other lamps to the central unit and sends the messages received from the unit central directed to at least one other lamp, to said at least one other lamp.

2. System according to claim 1, wherein each primary node sends periodically and/or at the request of the general control module, a message addressed to the central unit, said message including an indication of the location of the primary node within the site.

3. System according to any of the preceding claims, wherein the general control module of each primary node sends operating orders to the lighting control module based on the orders received from the central unit via wireless network.

4. System according to any of the previous claims, where there is a primary node for each worker that is to be controlled and, in the central unit, each primary node is associated with a worker.

5. System according to any of the previous claims, wherein the wireless network is a wireless network according to the IEEE 802.15.4 protocol.

6. System according to any of the preceding claims wherein each primary node also comprises a motion sensor.

7. System according to claim 6, wherein if this motion sensor indicates that the primary node remains motionless for a certain period of time, the primary node sends an emergency message to the central unit.

8. System according to claim 7 wherein when the central unit receives an emergency message because the motion sensor indicates that a primary node remains motionless for a certain period of time, the central unit sends an emergency message to said first node. primary and to those n primary nodes whose location is closest to said first primary node, where n is a design parameter.

9. System according to any of the previous claims wherein each primary node comprises a button that can be operated manually by the worker carrying said primary node and when the user operates the button on a first primary node a certain number of times, the primary node will emit a message to the central unit indicating that the worker is in an emergency situation and the central unit, when it receives said message, sends an emergency message to those n primary nodes whose location is closest to said first primary node, where n is a design parameter.

10. System according to any of claims 7-8 where, when a primary node receives an emergency message, the general control module gives a order the lighting control module to flash the lighting device at a first certain frequency for a first certain period of time.

eleven . System according to any of the previous claims, wherein if the location sent by a primary node is in a certain area that is marked as not allowed for said primary node, the central unit sends a warning message to said first primary node and where, When the primary node receives said warning message, the control module gives an order to the lighting control module so that the lighting device flashes with a second certain frequency for a certain time.

12. System according to any of the preceding claims wherein each primary node sends periodically and/or at the request of the general control module, a message addressed to the central unit including said message the status of the battery of the primary node.

13. System according to claim 12, wherein if, based on the information on the state of the battery received from a primary node, the central unit determines any anomaly in the battery or that said battery is in a state of near discharge, it sends a warning message to the primary node and when the primary node receives said warning message, the control module gives an order to the lighting control module so that the lighting device flashes with a third certain frequency for a certain time.

14. System according to any of the previous claims wherein the primary nodes additionally comprise a button that can be operated manually by the worker carrying said primary node and when, if after the primary node receives a first message, the user presses said button a number determined number of times, the primary node will issue a second message to the central unit indicating that the worker has understood said first message and where, when the central unit receives said second message, the central unit stops sending the first message to said primary node.

15. A helmet lamp to improve control and safety in a specific location, characterized in that it comprises:

- A lighting device located on the front of the lamp.

- A lighting control module (13) that controls the turning on and off of the lighting device

- A transmission and reception module that connects said lamp to a wireless network, allowing the sending and receiving of messages to and from other nodes of the wireless network.

- A control module (19) that controls the operations of said transmission and reception module and said lighting control module.

16. A helmet lamp according to claim 15, wherein said lamp sends messages to a central unit and receives messages from said central unit via said wireless network and wherein said transmission/reception module periodically sends a message addressed to a central unit including said message an indication of the location of the lamp within the site and where the general control module sends operating commands to the lighting control module based on messages received from the central unit over the wireless network.

17. A helmet lamp according to any of claims 15-16, wherein the lighting device consists of 2 light sources, a main light source and a secondary light source.

18. A helmet that includes a lamp according to any of claims 15-17.

19. A helmet lamp according to claim 15, wherein the lamp performs the functions of a repeater between other lamps and a central unit, sending the messages it receives from other lamps to the central unit and sending the messages received from the central unit addressed to at least one other lamp, to said at least one other lamp.