WO2019243386A1

WO2019243386A1 - Arrangement and method for coordinating help in the event of an electrical accident

Info

Publication number: WO2019243386A1
Application number: PCT/EP2019/066124
Authority: WO
Inventors: Gunther Becke; Ulrich Klapper
Original assignee: Adaptive Regelsysteme Gesellschaft M.B.H.
Priority date: 2018-06-21
Filing date: 2019-06-19
Publication date: 2019-12-26
Also published as: AT521138A4; AT521138B1

Abstract

In order to increase the safety of a person (8) in the region of an electrical system (10) in relation to electric shocks when coming into contact with energised or live parts of the electrical system (10), according to the invention: the person (8) wears a protective device (1) for detecting an electrical current in the body and a transmission unit (64) is arranged on the protective device (1), which establishes a radio connection (62) with a predefined remote location (60) in the event of a detected incorrect electrical current in the body in order to inform a remote location (60) about the electrical accident.

Description

Arrangement and procedure for coordinating help in the event of an electrical accident

The present invention relates to an arrangement and a method for coordinating help for a person who has been accidentally affected by a power accident on an electrical system, with a protective device worn by the person for detecting an electrical body current by the person, the protective device in the event of detection of a issues an emergency signal in the event of a body current flowing in an electrical accident.

Electrical systems for energy supply, distribution and transmission of electrical energy, such as, for example, an energy supply in a building or for a machine park or an electrical high-voltage network or sections thereof, require regular inspection, servicing and maintenance by appropriate persons is carried out, partly also during ongoing operation. Special test devices are often used, which are connected to parts of the energy transmission system. Such test devices can even generate high electrical voltages and / or currents for a check. In this context, there is an imminent danger to such persons, since in the event of unintentional contact with live or live parts due to electric shock, there may be a risk to life or at least the risk of sometimes considerable injuries. In the vicinity of an electrical system there are usually people who, in the event of incorrect behavior or a fault in the electrical system, for example an insulation breakage, can also suffer an electric shock when touching a live component. It is therefore customary to provide an emergency stop on electrical systems, in particular in the industrial environment, in order to switch the component free of voltage if a person comes into contact with a live or live component. With such safety devices, the safety of people working on live parts or live parts against electric shock due to unintentional contact can be increased by other people present triggering the emergency stop in the event of a fault. However, this means that at least one other person is in the vicinity of a power accident and also becomes aware of the power accident, which is not always the case.

Methods and devices for better protection of people against impermissible electrical currents have therefore become known. DE 39 03 025 A1, for example, describes such a method and such a device, wherein an electrode is arranged on at least two extremities of the person, for example arms or legs, which are connected to a control device. A body current through the contact of an external electrical potential is detected by the control unit via the electrodes. If such a current flow is detected, the control device activates a shutdown device with which the further Power supply to the contact point is interrupted. The electrodes and the control unit can be arranged on a piece of clothing and the connection between the control unit and the shutdown device is wireless. A similar protective device is shown in DE 44 38 063 A1. With such protective devices, the safety of live parts or live parts against electric shock from accidental contact can be increased.

It is therefore the object of the present invention to increase the safety for people in the area of an electrical system against electric shocks when touching live or live parts of the electrical system.

This object is achieved according to the invention in that a transmission unit is arranged on the protective device and, in the case of a detected body current, establishes a radio connection to a predetermined remote location in order to inform a remote location of the electrical accident. This means that the protective device can not only trigger a desired action via the emergency signal, in particular a switching action for de-energizing the electrical system or a part thereof, but it is also provided that a central point is informed of the power accident, so that this central point and the Information received can quickly be coordinated to help the casualty. It is irrelevant whether the aid is coordinated automatically or via another person at the remote location. Rapid help is particularly important when the accident victim works alone and / or at remote locations on the electrical system, which means that such power accidents may not be detected at all or only with a great time delay. In the case of electric shocks in particular, however, quick help can be life-saving, which is made possible by the present invention.

Further advantageous configurations and effects of the invention result from the dependent claims and the following description.

The present invention is explained in more detail below with reference to FIGS. 1 to 7, which show exemplary, schematic and non-limiting advantageous embodiments of the invention. It shows

1 shows a protective device used for the invention,

2 the integration of an emergency signal input for receiving an emergency signal in a device,

3 shows an exemplary embodiment of the method according to the invention for notifying a remote location of a power accident involving a person wearing a protective device,

4 shows the use of a mobile terminal for establishing the radio connection to the remote location, 5 the additional detection of the position of the person,

6 shows a possible communication link between two protective devices and

7 shows an arrangement with several radio receivers for transmitting the emergency signal from the protective device.

The subject invention uses a protective device 1 which is known in its basic function from the prior art and which is explained in more detail with reference to FIG. 1 for better understanding. The protective device 1, or at least parts thereof, is arranged or integrated on an item of clothing 2, here a shirt. Of course, other parts can also be considered as clothing item 2, e.g. a pair of pants, a sweater, a T-shirt, a jacket, a jumpsuit, etc. Combinations of several parts can also be considered as clothing item 2, e.g. a combination of trousers and shirt, etc. At least one sensor 3 is arranged on the item of clothing 2 in order to detect an electric body current flowing through the human body. Electrodes 5 can be used as sensor 3, for example, in order to detect an electrical potential or an electrical current. The electrodes 5 are preferably arranged at exposed points of the item of clothing 2, for example in the region of extremities, that is to say for example on sleeves, trouser legs or hoods. A sensor 3 is also a bio-metric sensor 7 in order to detect a biometric signal, for example the frequency of the heartbeat, the amplitude or the course of the heartbeat, the respiratory rate, the skin resistance, etc. By evaluating the biometric signal, in particular the heartbeat (frequency, amplitude and / or course), a flowing electrical body current can also be inferred.

For this purpose, the sensor 3, or the sensors, can preferably be integrated in the item of clothing 2, but can also be applied separately, for example by means of a cuff, a bracelet or a belt. In one possible embodiment, a sensor 3 could be designed as an electrode 5 in the form of a known Rogowski coil (as in FIG. 1) in order to detect an electrical current flowing through an extremity or other part of the human body. For this purpose, the electrode 5 can be placed in a ring around an extremity, e.g. in a waistband of a sleeve or a trouser leg of the item of clothing 2.

For the detection of an electrical potential, the electrode 5 must be in contact with the skin in an electrically conductive manner, whereas this would not be absolutely necessary in the case of a Rogowski coil, for example. A resistance measurement can also be carried out regularly or continuously between the two electrodes 5 in order to check whether the item of clothing is properly connected to the body of the person 8. In order to detect the heartbeat, a corresponding biometric sensor 7, for example a heart rate sensor, could be found in the clothing 2 extension piece 2 can be integrated in the area of the chest, or a corresponding chest strap could be put on.

A sensor 3 is connected via at least one signal line 4 to an evaluation unit 6 (for example in the form of a computing unit, possibly also with appropriate software). The signals recorded with the at least one sensor 3 are evaluated in the evaluation unit 6. For example, an electrical potential detected with an electrode 5 as sensor 3 or a detected flowing electrical current can be evaluated. An applied electrical voltage can be determined between two detected electrical potentials, for example with two sensors 3 designed as electrodes 5, and evaluated in the evaluation unit 6. The evaluation can be carried out analogously with suitable hardware or digitally, which requires an A / D conversion and corresponding hardware and software. In the event of a detected dangerous body current, for example an abnormal heartbeat, a detected dangerous current flow or a dangerous potential difference (voltage) between two electrodes 5, the evaluation unit 6 generates an emergency signal S, which can be used to trigger a desired action. For this purpose, of course, corresponding limit values for an allowable body current, for example an allowable potential difference or an allowable current, can also be stored or specified in the evaluation unit 6, which can also be changeable. Likewise, patterns of a biometric signal can be stored in the evaluation unit 6, which suggest a dangerous body current.

In an advantageous manner, different sensors 3 can be provided on the item of clothing 2 in order to increase the security of the detection of dangerous electrical body currents. For example, electrodes 5 could be provided on extremities and additionally a biometric sensor 7 for detecting the heartbeat, as shown in FIG. 1.

The safety of the protective device 1 can also be increased by providing redundancies. For example, more than one signal line 4 can be provided per sensor 3, as a result of which possible cable breaks or contact errors do not have to lead to the failure of the safety function or a cable break or contact error can even be recognized and, if appropriate, also displayed.

The evaluation unit 6 is preferably held or carried by the person 8 who wears the protective device 1. For example, this could be arranged in a shoulder bag or a backpack, but could also be placed in a pocket of the item of clothing 2 or could advantageously, wholly or partly, also be integrated in the item of clothing 2, for example in the form of an intelligent item of clothing with integrated electronics , The emergency signal S can in principle be output in a wired or wireless manner and can be received wirelessly or in a wired manner at the emergency signal input 21.

The protective device 1 thus consists, for example, of an item of clothing 2 with at least one sensor 3 and an evaluation unit 6, which is connected to at least one signal line 4 with the at least one sensor 3 and which evaluates a signal detected by the sensor 3 in order to detect a dangerous electrical signal To capture body flow. The emergency signal S of the evaluation unit 6, or generally of the protective device 1, can be used by further devices 11 or generally by the electrical system 10 in order to take certain configured actions in order to increase the safety of a person 8 against electric shock.

This is explained by way of example with reference to FIG. 2, which shows a device 11 as an example of an electrical system 10 or part of an electrical system 10. A current and / or voltage generator 25 is provided in the device 11, which generates the required electrical currents and / or voltages at the current and voltage outputs 22 of the device 11. For this purpose, the device 11 is connected to an energy supply 24, which can be external (for example an electrical network or an external battery, or also internally (for example in the case of a battery-operated device). In the device 11 there is between the current and / or the voltage generator 25 and the current and voltage outputs 22 are provided with a separation unit 23. The separation unit 23 could also be provided in front of the current and / or voltage generator 25, or at another suitable location in the device 1 1. The disconnection unit 23 can of course also be designed with multiple poles, depending on the number of current and voltage outputs 22. When actuated, the emergency stop switch 20 activates the disconnection unit 23, for example a disconnection relay, in the device 11, which and voltage outputs 22 of the device 11 are de-energized and / or short-circuited.

The emergency stop switch 20 can be operated manually by a person present to switch the outputs of the device 1 1 and / or the electrical system 10 and / or parts of an electrical system 10 de-energized and / or short-circuit them. In this way, the external energy supply to the device 11 is not disconnected, but rather the outputs in the device 11 are de-energized and de-energized. Switching off the outputs is faster and safer, since otherwise capacities possibly present in the device 1 1 feed the outputs until the energy is used up. Despite the emergency stop switch 20, a hazard potential can arise for a person through unintentional contacting of live or live parts of the device 11, in particular if the person is no longer able to actuate the emergency stop by electric shock and no other person is present or notices the power accident. In addition, manual switch-off takes a few seconds, which significantly increases the duration of the electrical accident and thus the risk to the accident victim. An emergency signal input 21 is therefore additionally provided on the device 11, which actuates the separation unit 23 of the emergency stop circuit when an emergency signal S is received, in particular from the protective device 1. According to the invention, consequently, the emergency signal input 21 is also connected to the separating unit 23 and activates the separating unit 23 when an emergency signal S is received via the emergency signal input 21. Of course, several serially connected separating units 23 could also be provided in the device 11, each of which is separately controlled be, for example, a separation unit for the emergency stop switch 20 and a separation unit 23 for the emergency signal input 21. The emergency signal input 21 does not necessarily have to be integrated in the device 1 1, but could also be designed as a separate unit that is connected to the device 1 1 is connected.

In the protective device 1, preferably on the item of clothing 2 or on an external unit which is in data connection with the protective device 1, at least one further sensor 9 can optionally be provided for detecting a further size, the further size representing a further state of the person 8 (in addition to a possible body current) is recorded. The further sensor 9 can be an acceleration sensor, for example, in order to be able to determine a fall of the person 8. A position sensor as a further sensor 9 can be used to detect when the person 8 is lying. The further sensor 9 can be designed to record an EKG (electrocardiogram), which can provide important information about the condition of the accident victim 8 in connection with a power accident. The breathing of the accident victim 8 can also be detected by means of an acceleration sensor or motion sensor as a further sensor 9. Of course, several further sensors 9 can also be provided on the protective device 1, any combinations of the above sensors 9 being conceivable.

Values acquired with sensor 3 or sensors 3 and / or values acquired with at least one further sensor 9 can also be stored in protective device 1 in a memory unit, for example in evaluation unit 6. This makes it possible to read out stored values at a later time or to transfer them to other locations.

If contact of the person 8 with a live or live part of an electrical system 10, which causes an inadmissible body current flowing through the person 8, is detected by the protective device 1 as described above, an emergency signal S is triggered, for example wirelessly, for example via a radio connection. The protective device 1 thus triggers a switching action on the electrical system 10 via the emergency signal input 21, the aim of which is to de-energize the part that is touched by a person 8. In many situations, the protective device 1 can successfully actuate an emergency stop or initiate another switching action via an emergency signal input 21 and thus disconnect the electrical system 10 or at least parts thereof from current and voltage. If the protective device 1 is activated, an electric shock has already occurred in these situations. The affected person 8 can, however, sometimes work in very remote locations, for example on energy supply networks, or work alone, so that despite the activation of the protective device 1, no help for the accident victim 8 comes. The same applies if the protective device 1 fails for whatever reason, that is to say the protective device 1 responds, but no voltage-free connection can be established.

It is therefore provided according to the invention that the protective device 1 not only generates and outputs an emergency signal S, but also with a transmission unit 64, such as a mobile radio transmitter 63, also a radio connection 62 (indicated by the dashed line), to a configured location 60 that is remote from the location of the power accident, so that help for the accident victim 8 is initiated or coordinated, preferably by another person 61 in the distant point 60, as shown in Fig. 3. In this context, “removed” means that this additional person 61 is at least so far away from the accident victim 8 that this additional person 61 neither visually nor acutely shows the state of the accident victim - can perceive table immediately. The additional person 61 can, for example, sit in an emergency center, which can be in a completely different place. The protective device 1 can set up the radio connection 62 directly via the transmission unit 64, for example by means of a mobile radio transmitter 63 which is integrated in the item of clothing 2, for example again as part of an intelligent clothing.

Alternatively, the protective device 1 can also set up the radio connection 62 indirectly, for example in that the protective device 1 connects to a mobile terminal 66 of the person 8, for example a smartphone, via the transmitting unit 64 via a suitable data connection 65, for example Bluetooth. connects (eg using Bluetooth), which then establishes the radio connection 62 to the remote location 60, as shown in FIG. A predetermined message can be sent via the radio connection 62, for example a text message (SMS), a data transmission (for example by e-mail) or a call. The additional person 61 in the remote location 60 can also carry a mobile terminal 67 with them, which can be connected to the radio link 62 if required, for example via a mobile radio network. It is obvious that the remote location 60 (e.g. emergency center) does not have to be location-specific, in particular if the additional person 61 also uses a mobile terminal 67 for contacting.

The transmission unit 64, for example in the form of a mobile radio transmitter 63, is preferably in the evaluation unit 6 or also in the item of clothing 2 (for example in the form of an intelligent clothing fertilizer) integrated itself. The transmission unit 64 can be controlled by the evaluation unit 6 of the protective device 1.

The further person 61 can then coordinate help for the accident victim 8. For example, in an emergency center, the location of people 8 who are working on live or live electrical systems 10 can be known. For example, maintenance work on an energy supply network is planned as an electrical system 10 (as in FIG. 3) and it is known when and where it is carried out. The protective device 1 can be assigned to a specific person 8 and can also have a unique identification (for example a mobile phone number). In this way, an incoming emergency call (also as a text message or an e-mail) from a protective device 1 can be assigned to a location and / or person 8 in the emergency center, with the help of a helper being able to be coordinated by the other person 61 in a targeted manner.

The protective device 1 can also be equipped with a unit 72 for determining the position. For this purpose, for example, the unit 72 for determining the position, for example a GPS (Global Positioning System) sensor, can be arranged on the item of clothing 2 (as indicated by the dashed line in FIG. 5), or can be integrated therein, for example in intelligent clothing with integrated electronics. Of course, other satellite navigation systems, such as GALILEO, can also be used. However, there are of course other possibilities for determining the position of a person 8 by means of a unit 72 for determining the position. For example, the availability of WLAN (Wireless LAN) networks could be used to draw a conclusion about the current position. A position could also be determined via a mobile radio network, for example by means of GSM location.

The protective device 1 can, however, also be connected to an external unit 71, which can carry out a position determination, as a unit 72 for determining the position, as shown, for example, in FIG. Today's mobile telephones or smart phones generally have a position determination integrated, so that a mobile terminal 66 can be used particularly advantageously as an external unit 71 for this purpose (as in FIG. 5). The external unit 71 can also be a GPS receiver. The protective device 1 can thus be connected to the external unit 71 via a suitable data connection 65, for example Bluetooth, in order to obtain the current position of the person 8 from the external unit 71. A transmission unit 64 could again be provided in the protective device 1 for the connection.

The current position can be stored in the protective device 1, preferably in the evaluation unit 6 of the protective device 1, preferably with further details of a power accident, such as date, time, duration of the body current, level of the current. flow to enable later evaluation. The current position is understood to mean both geocoordinates and a specific location. Since many external units 71 often also have a location function, the location can also be used directly as the current position.

Of course, the current position or the current location can also be transmitted to the remote location 60 (as in FIG. 4 or 5) in order to support the coordination of help for the accident victim 8. The current position or the current location could also be transmitted to the remote location 60 at certain time intervals in order to always know a current position or a current location of the person 8.

Independently of the other functions of the protective device 1, the position or location of the person 8 can be recorded and stored in the protective device, for example for documenting power accidents or for statistical records or evaluations of power accidents. In addition, further details such as date, time, duration of power contact, etc. can be saved.

It is obvious that when a remote location 60 is notified by the protective device 1 in the event of a power accident, additional information can of course also be transmitted, for example data from further sensors 9 on the protective device 1 relating to the condition of the person 8, for example the position of the person 8 (case , Person lies), pulse, EKG, breathing. Such additional information can be important for coordinating aid and rescue work.

However, the remote location 60 can of course also be automated in such a way that, in the event of an incoming message about a power accident to a person 8, certain actions are taken automatically, for example the notification of an emergency medical service or helper, possibly also with the specific position or location the person 8, possibly also with other available data. In this case, the additional person 61 would not be absolutely necessary.

For this purpose, the remote location 60 could also determine one or more helpers in the vicinity of the person 8 involved in the accident and inform them specifically about the power accident. The assistant who is closest to the accident victim 8 is preferably determined. For this purpose, the helper can be equipped with a communication unit, for example a mobile phone or smart phone, which is contacted by the remote location 60 or by another person 61 in the remote location 60 with a corresponding message.

The message could be an SMS, email, or something similar, or a call.

A helper in the vicinity of the accident victim could be determined by knowing the positions of all the assistants in question in the remote location 60. For example, the remote location 60 could use the communication units of the helpers in the current positions are transmitted at predetermined intervals. Proximity could also be determined in such a way that it is determined whether a communication unit of the accident victim 8, for example a mobile terminal 66, can exchange messages with a communication unit of a helper, for example via Bluetooth, or whether both do so same WiFi network can receive. This could also be continuously communicated to the remote location 60 by the respective communication unit so that the remote location 60 always has a current status.

Situations are conceivable that a switching operation on the electrical system 10 is carried out by the emergency signal S, but this does not lead to the desired success, that is to say that the contacted part is de-energized. This can happen, for example, if an emergency circuit is interrupted, but there is another circuit that is not connected to the emergency stop. Therefore, in the device 1 1, which receives the emergency signal S via the emergency signal input 21 and triggers a switching action, or in the electrical system 10, it can also be monitored whether the switching action leads to the desired success within a predetermined period of time, for example 100 ms, namely determining the De-energized when the safety device 1 no longer receives an emergency signal S after the switching operation. If it is not possible to determine that there is no voltage in the specified period of time, a further switching action can be triggered in the electrical system 10, for example in order to disconnect at least one further circuit. It is often the case, for example, that only certain sockets or power supplies are connected to an emergency power circuit, but other electrical parts are in a different circuit. In this way, the emergency circuit could first be separated as described and in a second step, if the first step was unsuccessful, a defined further circuit or also a circuit with which the device 11 is supplied. Different hierarchies of circuits can of course be defined, which are switched off one after the other. For example, an emergency power circuit could be switched off first, then an adjacent emergency power circuit or a circuit for normal sockets, then a circuit for IT infrastructure in a certain part of a building, then the entire building and finally the power supply to a server room.

It is also conceivable for several people to be in the work area at the same time to carry out work on live parts. Typical examples are an accident with an electric vehicle or a general electrical accident involving several firefighters or rescue workers, or work on hanging power lines or overturned electricity pylons after a storm. In such situations, a person's 8 electrical accident may not be noticed by other people in the vicinity, even in the immediate vicinity. This can also put other people at risk, for example because they touch the person 8 in the circuit or because they also touch the live part. Apart from this, an efficient action to rescue the accident victim 8 or to protect other people in the vicinity, for example by switching off or short-circuiting the circuit or by pushing away the accident victim 8, is only possible if at least one other person in the vicinity is aware of the power accident gain. A protective device 1 according to the invention can also be used advantageously in such cases, as is described by way of example with reference to FIG.

It is assumed that several people 8a, 8b, each with a protective device 1a, 1b, are in the vicinity of a live component and that the protective devices 1a, 1b are in communication connection. For this purpose, each protective device 1a, 1b can be designed with a communication unit 80a, 80b in order to be able to set up a communication connection 81, for example Bluetooth. However, the communication connection 81 can also be set up indirectly, for example as explained in FIG. 4, via a mobile terminal 66 of a person 8a, 8b. However, the communication units 80a, 80b of the two protective devices 1a, 1b do not have to communicate directly with one another either. It would be conceivable, for example, that a communication center 82 be set up in the area of the work, with which the individual protective devices 1a, 1b connect via their communication units 80a, 80b, as indicated in FIG. The communication link 81 is then established via the communication center 82. The communication link 81 can be permanently set up or can also be set up on a case-by-case basis. If a protective device 1 a triggers an emergency signal S for a person 8 a because this person 8 a gets into a circuit, the at least one further person 8 b in a circle via the communication link 81 and the control unit 1 a is transmitted via the communication unit 80 a of the protective device 1 a Communication unit 80b of the protective device 1b informed of this. For this purpose, a corresponding signaling unit, for example an acoustic, visual or palpable alarm, can also be provided on a protective device 1. If a protective device 1 is additionally provided with a unique identifier, it can also be transmitted which protective device 1 is affected in order to make it easier for the accident victim 8a to be found. This can considerably accelerate the help for an accident victim 8a.

Instead of a communication center 82 set up in the area of the work, the described communication could also take place via a (arbitrarily) distant location 60 as a communication center, for example as described in FIG. 3 or 4.

The protective device 1 of the accident victim 8, or a communication unit 80 of the

Protective device 1 or an external device 71 coupled thereto, for example a

The mobile phone carried by person 8 can also be used with a loud acoustic signal, optionally also with a spoken warning text, surrounding, possibly also untrained and not trained prepared to make other people aware of the danger and the help needed. An acoustic warning such as "Warning - power accident - this person is under voltage. Do not touch anyone. Interrupt the circuit or knock the person off the circuit ”or“ Warning - electrical accident - this person received an electric shock. Touchable live parts are nearby ”would be conceivable, for example.

In the case of a radio connection for transmitting the output signal S from the protective device 1 to a radio receiver 90 of the electrical system 10, it can of course be checked, either continuously or at least at the beginning of the work, whether there is a radio connection at all. If not, a corresponding alarm can be displayed on the protective device 1, for example acoustically, visually or palpably. The same naturally applies if a low charge state of an energy supply of the protective device 1 is determined in the protective device 1.

In certain applications, in particular in buildings, the radio connection between the protective device 1 and the radio receiver for receiving the emergency signal can break off easily and undetected, in particular when the person wearing the protective device 1 is moving. This can lead to false triggers if a missing radio signal in the radio receiver triggers a switching action. In the worst case, the protective person 1 no longer provides protection for the person wearing 8 without being noticed.

The electrical system 10 could also be configured differently depending on the danger of the application, so that an interruption of the radio connection in a very dangerous application forces a switch-off process, and does not do so in a less critical application.

Apart from this, at least two radio receivers 90a, 90b, each with an emergency signal input 21 for receiving an emergency signal S from the protective device 1, can be provided in the work area of the person 8, as shown in FIG. A radio receiver 90a, 90b can be used with the electrical system 10 or the device 11 of the electrical system 10 as described above in order to detect an emergency signal S from the protective device 1 and to trigger an action, in particular a switching action. In this case, the emergency signal input 21 would be arranged externally from the electrical system 10 or the device 11 and the electrical system 10 or the device 11 would be connected to the external emergency signal input 21 on the radio receiver 90a, 90b. The protective device 1 is in a bidirectional radio connection with the radio receivers 90a, 90b. This means that a signal receiver 91 must be provided on the protective device 1 in order to be able to receive a radio signal F which is emitted by a transmitter 92a, 92b in the radio receiver 90a, 90b. The signal receiver 91 is preferably arranged on the item of clothing 2 or integrated in the item of clothing 2 and connected to the evaluation unit. unit 6, or another computing unit in the protective device 1, connected. The radio signal F from a radio receiver 90a, 90b is broadcast continuously or at least at regular intervals, and is received by the signal receiver 91 of the protective device 1. The protective device 1 is thus able to evaluate the signal quality of the radio channel between the protective device 1 and a radio receiver 90a, 90b. The protective device 1 can thus decide via which of the available radio channels the emergency signal S is sent.

A large number of such radio receivers 90a, 90b can be arranged in a building or system, and the protective device 1 selects a radio receiver 90a, 90b, for example the radio channel with the best signal quality, in order to do this

S to send emergency signal. In this way, the person 8 wearing the protective device 1 can move through the building or the system without losing the radio connection.

In principle, however, it is irrelevant to the invention where the decision is made about which radio receiver 90a, 90b is to be used for communication. The decision could be made in the signal receiver 91, in the radio receivers 90a, 90b or in the electrical system 10 or the device 11 or elsewhere.

Claims

claims

1. Arrangement for coordinating help for a person (8) who has been accidentally affected by a power accident on an electrical system (10) with a protective device (1) worn by the person (8) for the detection of an electric body current by a person ( 8), the protective device (1) emitting an emergency signal (S) in the event of detection of an inadmissible body current flowing in the event of a power accident, characterized in that a transmitting unit (64) is arranged on the protective device (1) of a detected impermissible body current establishes a radio connection (62) to a predetermined remote location (60) in order to inform the remote location (60) of the power accident.

2. Arrangement according to claim 1, characterized in that the transmission unit (64) is designed as a mobile radio transmitter (63).

3. Arrangement according to claim 1, characterized in that the transmitting unit (64) establishes a data connection (65) with a mobile terminal (66) of the person (8) and the mobile terminal (66) the radio link (62) to the remote location ( 60) builds up.

4. Arrangement according to claim 2 or 3, characterized in that the transmission unit informs the remote location (60) with a text message or data transmission of the power accident.

5. Arrangement according to one of claims 1 to 4, characterized in that in the remote location (60) a further person (61) receives the information about the power accident and the further person (61) assists the accident person (8 ) coordinates.

6. Arrangement according to one of claims 1 to 5, characterized in that the remote location (60) or the person (61) in the remote location (60) informs a helper about the power accident, preferably via a communication unit of the helper.

7. Arrangement according to claim 6, characterized in that the remote location (60) or the person (61) in the remote location (60) determines the helper who is closest to the accident victim (8) and this helper via the Electricity accident informed.

8. Arrangement according to one of claims 1 to 7, characterized in that the protective device (1) comprises an item of clothing (2) and an evaluation unit (6), the person (8) wearing the item of clothing (2) and the item of clothing (2 ) is equipped with at least one sensor (3) for detecting the body current, and the evaluation unit (6) evaluates a signal detected with the at least one sensor (3) and, in the event of an inadmissible body current, outputs the emergency signal (S).

9. Arrangement according to claim 8, characterized in that the protective device (1), preferably the item of clothing (2), comprises at least one further sensor (9) which detects and detects a further state of the person (8) wearing the protective device (1) / or a unit (72) for determining the position or location of the person (8), preferably a mobile terminal (66) of the person (8).

10. The arrangement according to claim 9, characterized in that the protective device (1) of the remote location (60) also transmits data of the at least one further sensor (9) and / or the position or location of the person (8).

1 1. Arrangement according to one of claims 1 to 10, characterized in that in the area of the person (8a) there is at least one further person (8b) who also wears a protective device (1 b), the protective device (1 a) the person (8a) and the protective device (1b) of the at least one further person (8b) are in communication connection (81), the protective device (1a) of the person (8) being the protective device of the at least one further person (8b ) informed about a power accident of the person (8a) via the communication link (81).

12. Arrangement according to claim 11, characterized in that the protective devices (1 a, 1 b) each comprise a communication unit (80a, 80b) for establishing the communication connection (81).

13. The arrangement according to claim 12, characterized in that a communication center (82) is provided in the area of the person (8a), which is connected to the communication units (80a, 80b) in order to establish the communication connection (81).

14. Arrangement according to one of claims 1 to 13, characterized in that the protective device issues an acoustic warning and / or an acoustic warning text in the event of a power accident.

15. Arrangement according to one of claims 1 to 14, characterized in that the protective device (1) transmits the emergency signal (S) by radio to the electrical system (10) and issues an alarm in the event of a missing radio connection.

16. The arrangement according to claim 15, characterized in that in the case of several possible radio connections that radio channel for the transmission of the emergency signal (S) can be selected which has the best signal quality.

17. Method for coordinating help for a person (8) who has been accidentally affected by a power accident on an electrical system (10), who carries a protective device (1) for detecting an electric current in the body by the person (8) and the protective device (1 ) outputs an emergency signal (S) in the event of detection of an inadmissible body current flowing in the event of a power accident, characterized in that the protective device (1) has a transmission unit (64) in the case of a detected impermissible body current, establishes a radio connection (62) to a predetermined remote location (60) in order to inform the remote location (60) of a power accident.

18. The method according to claim 17, characterized in that the transmitting unit (64) establishes a data connection (65) with a mobile terminal (66) of the person (8) and the mobile terminal (66) the radio link (62) to the remote location ( 60) builds up.

19. The method according to claim 17 or 18, characterized in that the transmission unit (64) informs the remote location (60) of a power accident with a text message or data transmission.

20. The method according to any one of claims 17 to 19, characterized in that in the remote location (60) another person (61) receives the information about the power accident and the other person (61) helps the accident victim (8 ) coordinates.

21. The method according to any one of claims 17 to 20, characterized in that the remote location (60) or the person (61) in the remote location informs a helper of the power accident, preferably via a communication unit of the helper.

22. The method according to claim 21, characterized in that the remote location (60) or the person (61) in the remote location (60) determines the helper who is closest to the accident victim (8) and this helper via the Electricity accident informed.

23. The method according to any one of claims 17 to 22, characterized in that the protection device (1) of the remote location (60) also data of at least one further sensor (9) and / or the position or location of the person (8) transmitted.

24. The method according to any one of claims 17 to 23, characterized in that in the area of the person (8a) there is at least one further person (8b) who also wears a protective device (1 b), the protective device (1 a) Person (8a) and the protective device (1 b) of the at least one further person (8) are in communication connection (81), the protective device (1 a) of the person (8a) being the protective device (1 b) of the at least one further person Person (8) informed about a power accident of the person (8) via the communication link (81).

25. The method according to any one of claims 17 to 24, characterized in that the protective device (1) outputs an acoustic warning and / or an acoustic warning text in the event of a power accident.

26. The method according to any one of claims 17 to 25, characterized in that the protective device (1) transmits the emergency signal (S) via radio and issues an alarm in the event of a missing radio connection.

27. The method according to claim 15, characterized in that in the case of several possible radio connections, that radio channel is selected for the transmission of the emergency signal (S) which has the best signal quality.