EP3763887B1 - Vorrichtung und verfahren zum überwachen eines hydranten - Google Patents

Vorrichtung und verfahren zum überwachen eines hydranten Download PDF

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Publication number
EP3763887B1
EP3763887B1 EP20184768.8A EP20184768A EP3763887B1 EP 3763887 B1 EP3763887 B1 EP 3763887B1 EP 20184768 A EP20184768 A EP 20184768A EP 3763887 B1 EP3763887 B1 EP 3763887B1
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EP
European Patent Office
Prior art keywords
hydrant
sensor
microcontroller
values
sensors
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Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
EP20184768.8A
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German (de)
English (en)
French (fr)
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EP3763887C0 (de
EP3763887A1 (de
Inventor
Saim Arslan
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Hawle Schweiz Armaturen AG
Original Assignee
Hawle Schweiz Armaturen AG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
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Application filed by Hawle Schweiz Armaturen AG filed Critical Hawle Schweiz Armaturen AG
Priority to EP23207086.2A priority Critical patent/EP4293166A3/de
Priority to HRP20240366TT priority patent/HRP20240366T1/hr
Publication of EP3763887A1 publication Critical patent/EP3763887A1/de
Application granted granted Critical
Publication of EP3763887C0 publication Critical patent/EP3763887C0/de
Publication of EP3763887B1 publication Critical patent/EP3763887B1/de
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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    • E—FIXED CONSTRUCTIONS
    • E03—WATER SUPPLY; SEWERAGE
    • E03B—INSTALLATIONS OR METHODS FOR OBTAINING, COLLECTING, OR DISTRIBUTING WATER
    • E03B9/00—Methods or installations for drawing-off water
    • E03B9/02—Hydrants; Arrangements of valves therein; Keys for hydrants
    • E—FIXED CONSTRUCTIONS
    • E03—WATER SUPPLY; SEWERAGE
    • E03B—INSTALLATIONS OR METHODS FOR OBTAINING, COLLECTING, OR DISTRIBUTING WATER
    • E03B9/00—Methods or installations for drawing-off water
    • E03B9/02—Hydrants; Arrangements of valves therein; Keys for hydrants
    • E03B9/04—Column hydrants
    • E03B9/06—Covers
    • G—PHYSICS
    • G08—SIGNALLING
    • G08B—SIGNALLING SYSTEMS, e.g. PERSONAL CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
    • G08B25/00—Alarm systems in which the location of the alarm condition is signalled to a central station, e.g. fire or police telegraphic systems
    • G08B25/01—Alarm systems in which the location of the alarm condition is signalled to a central station, e.g. fire or police telegraphic systems characterised by the transmission medium
    • G08B25/10—Alarm systems in which the location of the alarm condition is signalled to a central station, e.g. fire or police telegraphic systems characterised by the transmission medium using wireless transmission systems

Definitions

  • the subject of the invention is a device and a method for monitoring a hydrant according to the features of claims 1 and 9.
  • EP3293315A1 discloses a monitoring device which is arranged on a closing element or cover for closing a standardized outlet coupling of a hydrant.
  • the monitoring device includes a battery, a detection device for detecting the hydrant being put into operation and a signaling device with a mobile radio module. These elements are arranged within a pipe section which protrudes from the inside of the lid and is tightly closed by a lid element.
  • the mobile radio module is connected to an antenna on the outside of the lid using an HF line.
  • the detection device includes a position sensor for detecting rotation of the lid and a capacitive water sensor for detecting water that is in contact with the lid member within the hydrant.
  • the pipe section and the cover element with the water sensor are arranged radially within an annular sealing element, which serves to seal the outlet coupling when the cover is closed.
  • the mobile radio module sends a corresponding message to a management device.
  • a waiting period of a few minutes can then be provided in order to prevent radio messages from being sent multiple times when the hydrant is put into operation.
  • the device can also include a reed switch. Only after the reed switch has been fired contactlessly by a magnet during the initial installation is the transmission of radio-based messages enabled.
  • a monitoring arrangement for hydrants is known, which is arranged on a protective cover for the operating elements for opening the water valves. It includes an electrical contact, a reed switch or a proximity or tilt switch, which provides power to an alarm element and a signal generator when the protective cover is opened and causes a transmitter module of the signal generator to send an alarm message about the opening of the hydrant protective cover via a telephone line or wirelessly to send to a central office. To save energy, it is suggested to disconnect the signal generator from the power source when the lid is closed. If several hydrants are equipped with monitoring arrangements, each of which includes a transmitter/receiver module, these can be connected to form a mesh network. In such networks, receiving modules are constantly ready to receive. Alarm messages from each hydrant are forwarded via the network to a GSM receiving station and from there via the mobile phone network to the central office. Building a connection to the mobile network requires a comparatively large amount of time and energy.
  • Each leak detector includes a sensor arrangement with at least one vibration sensor, which is designed to detect acoustic signals, and an electronic control, which includes at least one microcontroller and a digital signal processor.
  • the microcontroller is configured to continuously receive acoustic signals from the sensor array.
  • the digital signal processor can be put into sleep mode and woken up by the microcontroller at predetermined times.
  • the digital signal processor can also be woken up by a signal received from a host. This is possible because a communication device in the leak detector is in operation and can receive and evaluate signals from the host.
  • An object of the present invention is therefore to create a device and a method for monitoring a hydrant, which efficiently use the available energy of an energy source and prevent unnecessary energy consumption.
  • the electronic control further comprises a sensor arrangement with at least one activation sensor, which wakes up the microcontroller when the hydrant is put into operation.
  • the activation sensor is arranged on a movable hydrant part in such a way that it generates a signal to wake up the microcontroller when the hydrant is put into operation.
  • the microcontroller After waking up from sleep mode, the microcontroller checks whether commissioning has actually occurred. Measured variables recorded by the activation sensor and one or more other sensors are compared with one or more stored comparison patterns. Such patterns can in particular also include temporal sequences of one or more measured variables or the corresponding values of one or more sensors. At least one of these comparison patterns corresponds to a characteristic pattern for values or value sequences of one or more sensors, as they arise when the respective hydrant part moves when the hydrant is put into operation.
  • the microcontroller then carries out the process steps intended for commissioning. Checking sensor signals after activating the microcontroller enables comparatively reliable detection of actual commissioning of the hydrant. Optionally, typical comparison patterns can also be saved for circumstances other than commissioning. This allows Executing different processes depending on the measured variables recorded, for example recording and storing measured variables.
  • a communication device When actual commissioning is detected, a communication device sends corresponding data in an energy-saving manner to a gateway or a base station of a mobile radio network. From there, the data is forwarded to a network server for further processing. If the measured variables recorded by sensors do not correspond to a comparison pattern after activation of the microcontroller, for example if a fire hydrant is knocked over or damaged by a vehicle, the communication device can optionally send a corresponding message. Alternatively to the message could
  • Comparison patterns can be stored that can be used to record the circumvention of a hydrant.
  • the communication device could preferably send an alarm message without delay with the highest priority.
  • FIG. 1 shows a monitoring system for monitoring hydrants 1.
  • Each hydrant 1 includes a hydrant device 2 with a communication device 3 for unidirectional or bidirectional communication with gateways 5 of a radio network.
  • Each hydrant 1 is arranged within radio range of at least one gateway 5 of the radio network.
  • the radio range is the maximum distance of a hydrant device 2 from the respective gateway 5, at which essentially interference-free communication between the hydrant device 2 and this gateway 5 is possible.
  • the radio range depends on various factors such as transmission power and reception sensitivity, transmission frequency, bandwidth, free field attenuation, attenuation due to obstacles, etc.
  • the radio ranges of three gateways 5 are shown by dotted lines 7. Within these areas, hydrant devices 2 can communicate with the respective gateway 5.
  • the radio network is preferably a network in which data can be transmitted over comparatively large distances of, for example, several kilometers with low transmission power, in particular a Low Power Wide Area Network (LPWAN).
  • LPWAN Low Power Wide Area Network
  • Such networks are already widely available in many places. Networks based on low-energy radio technology standards can can be created and/or expanded comparatively easily and inexpensively. Monitoring systems can therefore also be set up in areas that are not comprehensively served by a mobile phone network.
  • Suitable networks are LoRaWan, NB-IoT and SigFox.
  • the relevant technologies are assumed to be sufficiently known and are not explained in detail here. They only require low bandwidth and enable energy-efficient data transmission. This is particularly true if small volumes of data have to be transmitted only with low frequency and over short time intervals.
  • Networks such as LoRaWAN can be set up easily and as needed in frequency ranges of ISM bands that can be used without licenses or approvals.
  • frequencies of 433.05 to 434.79 MHz and 863 to 870 MHz may be intended for this purpose. Since electromagnetic radiation in these frequency ranges has good building penetration, radio ranges of 2 km or more can be achieved even in densely built-up urban areas. Larger areas can therefore be covered with just a few gateways.
  • communication can take place, for example, via mobile networks according to the GSM standard.
  • the gateways 5 of the radio network are usually connected via the Internet 9 to a network server 11, which coordinates the communication with the hydrant devices 2 via the gateways 5 and is connected to an application server 13.
  • the application server 13 processes data that is transmitted by the hydrant devices 2.
  • This data includes an identification code that is unique to the respective hydrant device 2.
  • this data can also include information about the time when the respective hydrant 1 is put into operation, in particular a time and a date.
  • the application server 13 stores the information transmitted by hydrant devices 2 in a suitable manner, so that for each hydrant 1 there is at least one commissioning status, preferably in conjunction with a corresponding time.
  • the hydrant device 2 can, for example, transmit the current value of a counter, which the hydrant device 2 periodically increments at intervals of, for example, 1 to 5 minutes.
  • Such counters can be reset, for example, when the hydrant device 2 is put into operation for the first time or after the sensor detection of the hydrant 1 being put into operation or when data is transmitted.
  • the application server 13 includes stored information for processing such counter values, in particular for determining times of commissioning of the respective hydrants 1.
  • Hydrant devices 2 can also be designed to transmit data to the application server 13 within a time interval of, for example, less than 5 minutes or immediately after the detection of the respective hydrant 1 being put into operation.
  • the time of transmission of data can therefore be used as the time of commissioning.
  • An explicit transmission of a commissioning time is not necessary in such embodiments.
  • a tolerance of magnitude of around 5 minutes for the time of commissioning is usually sufficient.
  • Hydrant devices 2 are preferably designed to send status messages periodically or according to stored time specifications. Such status messages allow the network server 11 and/or the application server 13 to check the correct functioning of hydrant devices 2. If an expected message does not arrive, the application server 13 displays an alarm status for the respective hydrant device 2. This can be reset by an operator with appropriate access rights after the problem has been resolved.
  • one or more of the sensors (21a, 21b) of the hydrant devices 2 can be designed to measure environmental variables such as temperature, humidity, air pressure, brightness, wind speed, etc. according to To periodically record, for example, specifications of a program stored in the microcontroller 19. These measured values or values calculated from them can be temporarily stored, for example, in a memory of the hydrant device 2. Such data can, for example, be sent periodically or according to stored time specifications.
  • the application server 13 is designed to store and evaluate data received from hydrant devices 2, for example in the form of data sets, and to provide corresponding information for display and/or further processing by clients.
  • clients are, for example, computers 15 in a monitoring center and mobile devices 17 such as tablets, notebooks or mobile phones.
  • the clients include client software or app for querying, filtering, sorting and displaying information, for example in the form of lists and/or area maps with the locations of fire hydrants 1.
  • the data is preferably provided using a web application.
  • Figure 3 shows a view of an above-ground hydrant or, for short, a hydrant 1.
  • Parts that are moved when the hydrant 1 is put into operation are, for example, a cover 23, which covers the operating elements of the hydrant 1, actuating spindles for actuating the valves (not shown) or closure caps 25 for generally standardized output couplings.
  • the activation sensor 21a can in particular be an acceleration sensor or an inclination sensor, which is arranged on such a movable part of the hydrant 1.
  • a voltage or an electrical resistance of at least one output of the activation sensor 21a changes.
  • this change can occur gradually or continuously.
  • the output of the activation sensor 21a can be digital.
  • the measured variable recorded by sensor 21a is compared with a predeterminable reference value. If the measured variable is smaller than the reference value, the output has a first logical state, e.g. "0". If the measured variable is greater than or equal to the reference value, the output has a second logical state, e.g. "1".
  • Passive switches with electrical contacts can also be used as activation sensors 21a, with the contacts being connected to one another when the respective part is moved, for example by changing a mechanical force or a magnetic force (eg in the case of a reed switch). or separated from each other.
  • one of the contacts is connected to the potential of the operating voltage of the hydrant device 2, the other contact is connected to an interrupt input of the microcontroller 19.
  • the microcontroller 19 can be put into an energy-saving sleep mode, in which essentially only the state of the interrupt input is monitored.
  • a control program of the microcontroller 19 is designed to interrupt the energy supply to parts of the hydrant device 2 that are not required during the duration of the sleep mode before switching to sleep mode.
  • Such parts are, for example, the communication device 3 or the radio transmitter 3a and/or the radio receiver 3b as well as further sensors 21a, 21b of the sensor arrangement 21, which are not intended to "wake up" the microcontroller 19 from sleep mode.
  • the microcontroller 19 can execute any specified processes or programs that go beyond simply monitoring an interrupt input. With such processes, for example, signals at other inputs of the microcontroller 19 can be monitored and/or data can be stored, processed, sent and received.
  • the microcontroller 19 In normal operating mode, also control the energy supply of parts of the hydrant device 2 such as the radio transmitter 3a, the radio receiver 3b or one or more sensors 21a, 21b of the sensor arrangement 21. Switching such parts on and off using electronic switching elements according to the respective needs helps to minimize the energy consumption of the hydrant device 2.
  • the microcontroller 19 includes a stored test program which, after each alarm is triggered or after each wake-up from sleep mode, determines the respective cause of this alarm and then initiates the execution of further procedural steps that are specified for this cause. If parts that are switched off are required to carry out these process steps, the energy supply for these parts is at least temporarily switched on again.
  • the cause of the alarm triggering can be a signal at the interrupt input or the expiration of an internal timer.
  • the microcontroller 19 checks in embodiments with multiple activation sensors 21a which activation sensor 21a triggered the alarm.
  • the microcontroller 19 can detect the state of at least one sensor 21a, 21b of the sensor arrangement 21 and/or changes to this state within a predetermined time interval.
  • the value of a measurement variable provided on the output side is referred to as the state of a sensor 21a, 21b.
  • Such measurements can be one or more analog and / or digital inputs of the microcontroller 19 are detected. These inputs also include the interrupt input.
  • measured values from several sensors 21a, 21b can also be recorded at an input of the microcontroller 19 using the multiplex method.
  • One or more sensors 21a, 21b can also be integrated into the microcontroller 19. Analogously, inputs and connections of sensors 21a, 21b with such inputs can then also be integrated into the microcontroller 19.
  • the space requirement of the hydrant device 2 can be reduced by a higher degree of integration. As a rule, this also reduces energy consumption.
  • the hydrant device 2 can, for example, comprise an acceleration sensor, which can be arranged in particular in a closure cap 25 of an outlet coupling of the hydrant 1 and can be designed to detect accelerations in one or, alternatively, several directions.
  • This acceleration sensor is an activation sensor 21a, which activates the microcontroller 19 as soon as the acceleration in at least one of the directions exceeds a predetermined reference value.
  • the electronic control includes stored data about which sensors 21a, 21b can be used to determine whether the hydrant 1 has been put into operation, and how the start-up of the hydrant 1 can be recognized based on measured values of these sensors 21a, 21b.
  • This information can be stored in the microcontroller 19 in particular in the form of program code and/or stored data.
  • the movement of hydrant parts when the hydrant 1 is put into operation causes typical patterns, particularly in the measured values of activation sensors 21a.
  • Such patterns can generally be described for one or more of the sensors 21a, 21b by temporal sequences of measured values or as functions. This includes functions with values that are constant over time. Subsets of such patterns, such as one or more specific constellations of measured values from several sensors 21a, 21b at one or more times or during one or more time intervals, are also patterns.
  • Values derived from such measured values such as average values formed during predetermined time intervals, integrated values or filtered values, can also be compared with corresponding stored patterns.
  • the conditions that must be met to detect the commissioning of a hydrant 1 are generally set independently of the conditions for activating the microcontroller 19.
  • Comparison patterns can in particular be stored as comparison patterns for comparing measured values of one or more sensors 21a, 21b in a memory of the electronic control, in particular of the microcontroller 19. Comparison patterns include at least one comparison value, preferably several comparison values, for each sensor 21a, 21b to be taken into account, which the respective measured variable should adopt in a specific chronological order.
  • a test program of the microcontroller 19 detects the measured values of one or more sensors 21a, 21b at one or more points in time after activation or the change from sleep mode to normal operating mode and evaluates them . These measured values or values derived therefrom, such as average values or integrated values during certain time intervals, are compared with corresponding comparison values of comparison samples. If the recorded values are within predeterminable tolerance limits of, for example, less than +/- 10% or +/- 20% of the comparison values correspond to the comparison pattern, this means that the hydrant 1 is put into operation, and the microcontroller 19 carries out procedural steps assigned to the respective comparison pattern.
  • a sensor arrangement 21 can, for example, include an acceleration sensor and two differently aligned inclination sensors on a closure cap 25.
  • a signal from the acceleration sensor wakes up the microcontroller 19.
  • a test program is then started.
  • detecting a change in the inclination position once or several times by one or more inclination sensors could also be considered as commissioning.
  • comparison values for changes in the inclination position can, for example, be defined relative to a reference position which corresponds to the closed position of the closure cap 25.
  • comparison values could be specified for one or more inclination sensors for an open position of the closure cap 25, whereby the Closure cap 25 hangs on a flexible securing element 42.
  • commissioning of the hydrant 1 can also be determined by monitoring the signals from the acceleration sensor.
  • a typical course of the measured variable of the acceleration sensor when opening the closure cap 25 can be stored as a model function, for example as a sequence of comparison values. Positive and negative values correspond to accelerations in opposite directions.
  • Comparison or reference values can preferably be specified or changed, for example when installing a hydrant device 2 or at a later point in time.
  • reference values for inclination sensors can be determined and saved based on measured values of these inclination sensors during the initial installation on a specific hydrant 1. This has the advantage that the stored values are optimally adapted to the respective arrangement of the hydrant 1 and the hydrant device 2.
  • the hydrant device 2 includes an initialization mode for this purpose. The change to the initialization mode can be initiated, for example, by a reset switch on the hydrant device 2.
  • the electronic control can include stored comparison patterns for several different events.
  • the sensor arrangement 21 can include a reed switch as an activation sensor 21a.
  • a person can change the state of this reed switch without contact using an external magnet.
  • the microcontroller 19 recognizes the closing or opening of the reed contact as the cause of the activation. This can optionally be confirmed by an acoustic or visual signal generator.
  • the hydrant device 2 now has a maintenance status for a maximum period of, for example, 20 minutes or until the next actuation of the reed switch, in which the sending of messages regarding commissioning is prevented.
  • the closure cap 25 can be opened to carry out maintenance work.
  • an inclination sensor can be used as an activation sensor 21a for waking up the microcontroller 19 and/or for detection when commissioning the hydrant 1.
  • the inclination sensor is designed to detect at least one position angle of the hydrant device 2 relative to the direction of the earth's gravitational force.
  • Inclination sensors can in particular include force or acceleration sensors that detect components of the earth's gravitational force on a mass body in two or three orthogonal directions.
  • the microcontroller 19 can also be woken up from sleep mode by an internal timer to carry out predetermined actions. Such an action is, for example, storing and/or further processing one or more measured values from sensors 21a, 21b.
  • the microcontroller 19 carries out the associated process steps if necessary.
  • a delay time until the message is sent can be set depending on the urgency of such a message.
  • the delay time can be any value between zero and several weeks, for example one or more hours, days or weeks. This ensures that urgent messages are transmitted with as little delay as possible. Data that is not time-critical can, for example, be transmitted together with other data at a later point in time. In this way, unnecessarily frequent switching on and off of the radio transmitter 3b can be avoided. Energy stored in the energy storage 4 is used efficiently in this way.
  • the microcontroller 19 activates the radio transmitter 3a and sends a message with the corresponding data.
  • Such messages each include the unique identification code of the respective hydrant device 2.
  • Status information is preferably also sent, which indicates what type of data is being transmitted.
  • One type of messages are status messages that indicate to the application server 13 the error-free functioning of the respective hydrant device 2 and/or the charging status of the energy storage device 4 and/or a time that indicates when the next status message is expected to be sent.
  • hydrant devices 2 include a communication device 3 with an additional receiver 3b for bidirectional communication with gateways 5, the reception of messages can be limited to certain time windows. Outside these time windows, receivers 3b can be switched off so that the energy consumption of receivers 3b is minimal.
  • Such reception time windows are preferably provided immediately afterwards or with a defined time delay after the respective hydrant device 2 has sent data. Several reception time windows can also be defined between two consecutive transmission cycles.
  • the communication server 11 transmits data that is intended for individual, several or all hydrant devices 2 to the corresponding gateways 5. There this data is stored in buffers. After transmitting a message from a hydrant device 2 to a gateway 5, the gateway 5 transmits the associated messages cached data in one or more designated time windows to the respective hydrant device 2.
  • FIGS. 4 and 5 show the outside and the inside of an exemplary closure cap 25, which is suitable for closing standardized Storz outlet couplings of hydrants 1 and includes a hydrant device 2.
  • Figure 6 shows a cross section of this closure cap 25 and Figure 7 an exploded view, wherein the parts of the closure cap 25 are arranged distributed along a cover axis A.
  • the closure cap 25 includes a locking plate 27 with latches 29 of a Storz bayonet lock.
  • the closing plate 27 could also include other connecting elements such as an internal or external thread (not shown).
  • the locking plate 27 is preferably made of one Aluminum alloy such as AlMgSi1.
  • a square recess 31 arranged centrally on the cover axis A enables a bolt 33, which includes an end region with a matching square section, to be inserted in a rotation-proof manner.
  • the bolt 33 comprises a preferably continuous axial bore 34 with an internal thread 35.
  • the bolt 33 and the recess 31 could also have other three- or polygonal profiles. Between the end regions, the bolt 33 comprises a radially projecting round collar 37.
  • This collar 37 serves as a stop for fastening a torus-like housing to the locking plate 27.
  • the housing comprises an annular housing base 41 and a curved annular housing hood 43, which is preferably in combination with a inner ring seal 45 and an outer ring seal 47 can be connected to one another in a watertight manner.
  • the connection can be made, for example, by means of three screws 49a, which are inserted into holes in the housing base 41 and screwed to corresponding holding elements with internal threads on the inside of the housing cover 43.
  • the bores have enlarged inner diameters on the input side to accommodate the screw heads. This makes it easier to attach the housing to the locking plate 27.
  • the spaces between the holes and the screws 49a are preferably sealed with sealing rings 46.
  • the housing hood 43 comprises a recessed annular shoulder 44 adjacent to an internal opening at the cover axis A.
  • the housing and the locking plate 27 are connected to one another by screwing a screw 49b into the internal thread 35 of the bolt 33 between a screw-side washer 51 and the collar 37 of the bolt 33 are held in a defined axial position.
  • the screw 49b can have a continuous axial bore 48 ( Figure 6 ).
  • the closure cap 25 thus has a continuous recess which connects the inside and the outside with each other when the screw 49b is screwed into the bolt 33. If water is under pressure on the inside of the closure cap 25, it sprays out through the recess. This is a sign that a valve in the supply line to the outlet coupling of hydrant 1 is not closed correctly.
  • the housing itself is shielded from areas of the hydrant 1 where water can be under pressure.
  • the inside of the housing is therefore well protected from water penetration.
  • a sliding ring 53 is mounted in an annular groove in the locking plate 27 and, adjacent to it, a plastic disk 55 with a central bore 57 with little play is mounted on a cylindrical end section 36 of the bolt 33.
  • the inside diameter of the central bore 57 essentially corresponds to the outside diameter of the cylindrical end section 36 of the bolt 33.
  • the end face of this cylindrical end section 36 is arranged flush with the surface of the plastic disk 55 adjacent to the central bore 57 or projects axially slightly beyond it by a projection of, for example, less than 0.2mm.
  • the unit consisting of bolt 33, locking plate 27, washer 51 and screw 49b can be rotated relative to the plastic washer 55 and relative to the housing become. However, these parts have almost no room for movement in the direction of the cover axis A.
  • a flexible securing element 42 such as a rope or a chain is preferably connected to the closure cap 25 in the area of the outer edge of the housing hood 43. If a closure cap 25 is arranged on an outlet coupling of a hydrant 1, one end of this securing element 42 is fastened captively, for example, to an eyelet 40 of the hydrant 1.
  • the housing can also be part of the hydrant device 2.
  • the housing with the built-in electronics or the hydrant device 2 can be prefabricated as a unit.
  • Conventional closure caps 25 can easily be replaced by closure caps 25 with hydrant devices 2.
  • the electronic elements of the hydrant device 2 are arranged within the housing, for example on a preferably ring-shaped circuit board 20 with holes for the screws 49a.
  • At least one antenna of the communication device 3 can also be arranged inside the housing, for example on the circuit board 20.
  • the housing cover 43 is made of a plastic that can easily be penetrated by electromagnetic radiation, for example made of impact-resistant polyamide.
  • the electronics can include, for example, an acoustic and/or an optical signal generator, in particular a piezoelectric transducer and/or a light-emitting diode. These can be used, for example, to confirm or signal certain operating states during maintenance work or other manipulations on the hydrant 1.
  • the housing cover 43 can include a translucent section or be made of a translucent material so that light from optical signal transmitters on the circuit board 20 is visible from the outside.
  • photovoltaic cells can optionally also be arranged in the housing. These convert ambient light into electrical energy for storage in energy storage 4.

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  • Engineering & Computer Science (AREA)
  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Hydrology & Water Resources (AREA)
  • Public Health (AREA)
  • Water Supply & Treatment (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Business, Economics & Management (AREA)
  • Emergency Management (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Arrangements For Transmission Of Measured Signals (AREA)
  • Testing And Monitoring For Control Systems (AREA)
EP20184768.8A 2019-07-10 2020-07-08 Vorrichtung und verfahren zum überwachen eines hydranten Active EP3763887B1 (de)

Priority Applications (2)

Application Number Priority Date Filing Date Title
EP23207086.2A EP4293166A3 (de) 2019-07-10 2020-07-08 Vorrichtung und verfahren zum überwachen eines hydranten
HRP20240366TT HRP20240366T1 (hr) 2019-07-10 2020-07-08 Uređaj i postupak za nadzor hidranta

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH00899/19A CH716397A2 (de) 2019-07-10 2019-07-10 Vorrichtung und Verfahren zum Überwachen eines Hydranten.

Related Child Applications (2)

Application Number Title Priority Date Filing Date
EP23207086.2A Division EP4293166A3 (de) 2019-07-10 2020-07-08 Vorrichtung und verfahren zum überwachen eines hydranten
EP23207086.2A Division-Into EP4293166A3 (de) 2019-07-10 2020-07-08 Vorrichtung und verfahren zum überwachen eines hydranten

Publications (3)

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EP3763887A1 EP3763887A1 (de) 2021-01-13
EP3763887C0 EP3763887C0 (de) 2023-12-20
EP3763887B1 true EP3763887B1 (de) 2023-12-20

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EP20184768.8A Active EP3763887B1 (de) 2019-07-10 2020-07-08 Vorrichtung und verfahren zum überwachen eines hydranten
EP23207086.2A Withdrawn EP4293166A3 (de) 2019-07-10 2020-07-08 Vorrichtung und verfahren zum überwachen eines hydranten

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CH (1) CH716397A2 (pl)
PL (1) PL3763887T3 (pl)

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CN113877122A (zh) * 2021-09-28 2022-01-04 福建闽山消防有限公司 一种具有用水量监测功能的智能消火栓及其监测方法
AT525564B1 (de) 2022-04-22 2023-05-15 E Hawle Armaturenwerke Gmbh Vorrichtung zur Überwachung eines Hydranten

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CH712589B1 (de) 2005-07-26 2017-12-29 Vonroll Infratec (Investment) Ag Überwachungsanordnung, Überwachungssystem und Verwendung einer Überwachungsanordnung zum Erfassen von Manipulationen an Hydranten.
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US9670650B2 (en) * 2015-11-09 2017-06-06 Sensus Spectrum Llc Fire hydrant monitoring system
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EP4293166A3 (de) 2024-03-13
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