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WO2008155024A2 - Appareil de mesure de température - Google Patents

Appareil de mesure de température Download PDF

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Publication number
WO2008155024A2
WO2008155024A2 PCT/EP2008/004475 EP2008004475W WO2008155024A2 WO 2008155024 A2 WO2008155024 A2 WO 2008155024A2 EP 2008004475 W EP2008004475 W EP 2008004475W WO 2008155024 A2 WO2008155024 A2 WO 2008155024A2
Authority
WO
WIPO (PCT)
Prior art keywords
temperature
measuring device
temperature measuring
fire
temperature sensor
Prior art date
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.)
Ceased
Application number
PCT/EP2008/004475
Other languages
German (de)
English (en)
Other versions
WO2008155024A3 (fr
Inventor
Bernd Spruck
Frank HÖLLER
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Carl Zeiss AG
Original Assignee
Carl Zeiss 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
Publication date
Application filed by Carl Zeiss AG filed Critical Carl Zeiss AG
Publication of WO2008155024A2 publication Critical patent/WO2008155024A2/fr
Publication of WO2008155024A3 publication Critical patent/WO2008155024A3/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01K—MEASURING TEMPERATURE; MEASURING QUANTITY OF HEAT; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR
    • G01K1/00—Details of thermometers not specially adapted for particular types of thermometer
    • G01K1/02—Means for indicating or recording specially adapted for thermometers
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01J—MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRARED, VISIBLE OR ULTRAVIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
    • G01J1/00—Photometry, e.g. photographic exposure meter
    • G01J1/02—Details
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01J—MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRARED, VISIBLE OR ULTRAVIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
    • G01J1/00—Photometry, e.g. photographic exposure meter
    • G01J1/02—Details
    • G01J1/0219—Electrical interface; User interface
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01J—MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRARED, VISIBLE OR ULTRAVIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
    • G01J1/00—Photometry, e.g. photographic exposure meter
    • G01J1/02—Details
    • G01J1/0233—Handheld
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01J—MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRARED, VISIBLE OR ULTRAVIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
    • G01J5/00—Radiation pyrometry, e.g. infrared or optical thermometry
    • G01J5/0014—Radiation pyrometry, e.g. infrared or optical thermometry for sensing the radiation from gases, flames
    • G—PHYSICS
    • G08—SIGNALLING
    • G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
    • G08B13/00—Burglar, theft or intruder alarms
    • G08B13/18—Actuation by interference with heat, light, or radiation of shorter wavelength; Actuation by intruding sources of heat, light, or radiation of shorter wavelength
    • G08B13/189—Actuation by interference with heat, light, or radiation of shorter wavelength; Actuation by intruding sources of heat, light, or radiation of shorter wavelength using passive radiation detection systems
    • G08B13/19—Actuation by interference with heat, light, or radiation of shorter wavelength; Actuation by intruding sources of heat, light, or radiation of shorter wavelength using passive radiation detection systems using infrared-radiation detection systems

Definitions

  • the invention relates to a temperature measuring device, which can be used during firefighting and to find injured persons with heavy smoke and poor visibility, consisting of a mobile device for detecting temperatures and means for transmission to a user.
  • Fire fighting in buildings generally has the problem of heavy smoke in a burning building. This smoke development requires respiratory protection equipment for the fire fighters in action, whose goal is, among other things, to identify the source of the fire as quickly as possible, to initiate combat and to locate injured persons. Due to the strong visibility obstruction by the smoke, however, this is very difficult, as the firefighters are usually in an unknown location environment.
  • infrared vision devices which allow the firefighter a rough orientation. But these have the disadvantage that for the observation of the display, a certain residual visibility must be present, these displays are very difficult to see and very expensive due to the respiratory protective devices, for example, simple pyrometer, which have a digital display, but not more smoke is readable.
  • DE 10 2005 056 796 A1 discloses a mobile unit for detecting environmental conditions, for example for monitoring an ambient temperature, which has a display for visualizing predetermined environmental conditions, such as temperature or a temperature range due to variable light emission.
  • DE 100 62 441 C1 describes a method for monitoring fire and explosion in mining by means of non-contact temperature sensors.
  • EP 0 419 046 A1 also describes a fire alarm sensor system which, inter alia, monitors a plurality of spectral channels in order to ensure the uniqueness of a true fire alarm. The task of the system is to avoid false alarms by multiple measurements. Here, too, when clearly exceeding a temperature limit described by several criteria
  • EP 0 995 088 B1 describes an acoustic pyrometer for measuring the average temperature of gas over a distance over a space having a known extent, comprising a signal generator for generating an acoustic signal, a detector for detecting the acoustic signal and a signal processor for detecting and distinguishing the acoustic signal in response to background noise in the room.
  • a device for switching the call signaling between the acoustic alarm and the vibration alarm is known from DE 102 59 576 A1, wherein a sensor also responds to a combination of temperature and humidity.
  • the present invention seeks to provide a temperature measuring device especially for firefighters, which additionally provides the equipped with a respirator firefighter a simple tool available to a fire in buildings with heavy smoke and poor visibility quickly and safely to find or to protect itself from approaching a fire at too high temperatures and track down injured, the temperature gauge is simple to set up and handle and inexpensive to produce.
  • the invention proposes a temperature meter for firefighters during ⁇ fire fighting, consisting of at least one temperature sensor, which transmits one of the measured temperature of a fire source proportional output signal to an electronic unit, wherein the electronic unit, the output signal either to a connected to it Speakers and / or directly to coupled headphones transmitted, which convert the output signal into an audible signal for a user.
  • the temperature sensor is preferably as
  • Radiation pyrometer designed to ensure that the temperature is measured without contact and from a safe distance and has one in the infrared range acting imaging optics, so that the output signal has a directional dependence when aligned with a radiation source.
  • the detection cone of the temperature sensor is optionally dimensioned as needed as a wide or narrow detection cone.
  • the temperature sensor is sensitive in particular in the spectral range between 8 ⁇ m and 14 ⁇ m, a range of 8 ⁇ m and 12 ⁇ m being sufficient.
  • a corresponding smoke development occurs. This smoke is not transparent in the visible spectral range, or has a very high absorption. It is therefore advantageous to measure in the infrared spectral range, as even with a strong smoke development, a relatively good transparency is present.
  • the temperature measuring device when aligned with a source of fire with heavy smoke and poor visibility, a temperature-proportional acoustic signal is received, which is perceived by a user and is available for locating the temperature in a spatial direction, the spatial direction through the Characteristics of the detection cone of the temperature sensor is defined.
  • the temperature source with the highest temperature and thus the source of fire can be detected in the event of fire despite the lack of visibility with the temperature measuring device according to the invention.
  • the invention serves to transform the temperatures into the sensory domain of the human ear and, in parallel, also to provide a mechanical feel by means of a tactile stick additionally arranged on the temperature measuring device as a substitute for the spatial vision.
  • the temperature-proportional signal of the temperature sensor is converted into an equivalent freguenzproportionales signal, wherein the measured temperature in the pitch corresponding acoustic signal is formed.
  • a low tone and a higher tone when listening to a high-temperature source become audible.
  • a fundamental pitch is given, which corresponds to the room temperature, with a temperature gradient being adjustable which sets the ratio of the frequency change to the temperature change in order to reconcile a good perceptible frequency with an expected maximum temperature.
  • an adjustment of the sensitivity is made in the vicinity of the fire by the temperature gradient is manually adjustable, wherein the manual adjustment of the frequency change is provided for temperature change, in particular by means provided on the temperature measuring device rotary or slide control.
  • the resulting property is that the device has an automatic balance. This is designed in such a way that when switching on the device, the currently found ambient temperature is taken as the reference value.
  • the current measured with the radiation pyrometer temperature for example, connected to the output audio frequency 0 or a very low barely perceptible frequency.
  • the instantaneous ambient temperature is determined as a reference value, and thus carries out an adjustment.
  • a temperature sensor present in the probe can be used, or the value determined by the radiation detector (pyrometer) can be used as a reference, whereby of course the sensor must be aligned with a "calibration surface", for example on the floor.
  • a new adjustment can be spontaneously initiated.
  • the adjustment can be done by the sensor is aligned with the floor of the room in question, and then pressed this balance button becomes.
  • a reference value is then internally determined, which is stored. All subsequent acoustic temperature outputs then refer to this reference value below until a new adjustment is possibly carried out.
  • the slope of the transfer characteristic remains unaffected by this process.
  • a preferred embodiment is that internally e.g. a microcontroller is used, which makes the adjustment by software by the value measured via an A / D converter is stored in a memory. All subsequent measurements can then be related to this value.
  • a further advantageous variant is seen in that the temperature-proportional signal of the temperature sensor is converted into an acoustic amplitude and thus the volume of a defined sound or noise with higher temperature also increases, in particular by means of a processor, a synthetic noise of a roaring fire is so replicable a temperature gradient for the ratio of volume change to temperature change can be set for a temperature measured with the temperature measuring device.
  • Another variant is that via the speaker or the headphones, a voice output takes place, which pronounces the measured temperature in words.
  • This has the advantage that the firefighter can get an overview of the absolute location of the source of the fire and the prevailing temperatures at an early stage during firefighting. It is advantageous that in all variants, the noise can also be turned off when needed.
  • the temperature measuring device is preferably equipped with two temperature sensors, which are either arranged at a defined distance from one another or in particular V-shaped and thus have horizontally different directions of action, wherein when using the headphones preferably the left temperature sensor, the signal for the left ear and the right temperature sensor provide the signal for the right ear.
  • the headphones preferably the left temperature sensor, the signal for the left ear and the right temperature sensor provide the signal for the right ear.
  • the equipped with two temperature sensors temperature measuring device also rotated by 90 ° gehaiten-werden7 ⁇ wobel ⁇ shows the left-arranged temperature sensor downward and the right arranged temperature sensor upwardly so that in addition the height of the seat of the fire is detected in the room.
  • the two temperature sensors are mounted directly on the headphones or the helmet of a user, so that a head rotation also directly allows the direction detection, or the two temperature sensors are arranged on a portable mobile temperature measuring device at a distance to each other, wherein by rotation the temperature measuring device direction dependent a temperature gradient can be detected.
  • the temperature measuring device for scanning the environment has a mechanical probe, wherein the mechanical probe has a telescopic extension, which can engage in the extended state.
  • an additional temperature sensor for contact measurements is arranged on the probe tip of the Taststockes.
  • the temperature measuring device between the two temperature sensors for a non-contact temperature measurement and the temperature sensor for the contact measurement is provided a switching.
  • the temperature measuring device has a communication device for forwarding measured temperature data to a message center or a direct transmitting device.
  • these have individual codes for differentiation. This can ⁇ ⁇ bel "spi ⁇ E1L" irri - at ⁇ Elnsatz of several firefighters, each with an individual
  • Temperature measuring device are determined, which firefighter moves in a respective predetermined direction in a building. This can be immediately closed to the existing temperature there, for example, when a firefighter moves in the building up in the direction of the higher floors and another in the direction of the basement or in different directions. In both cases, the temperature difference can already be used to determine the location of the source of the fire. Under certain circumstances, preferred variants are seen in that the Temperaturiness réelle is coupled to a portable computer, which has connectivity to wireless or ad hoc networks. This has the advantage that the temperature data are directly available to a fire service center for further action.
  • the temperature measuring device can also be coupled with a so-called microchip display glasses (HMD), which is housed inside or outside in a respirator by the temperature detected by the temperature measuring device is displayed as an absolute value in the form of a digital temperature display or as a mark on the bar scale and the exceeding of preset limits are displayed.
  • HMD microchip display glasses
  • Fig. 1 shows a first embodiment of a
  • Temperature measuring device with a temperature sensor
  • FIG. 2 shows a second embodiment of a temperature measuring device with two temperature sensors.
  • Fig. 3 shows another embodiment of a
  • Temperature gauges with a mechanical telescope balancing stick show embodiments of a temperature measuring device for firefighters during firefighting with heavy smoke and poor visibility.
  • the temperature measuring device preferably contains a radiation pyrometer, in order to ensure that the temperature can be detected in a direction-dependent manner, without contact, from a safe distance and with an imaging optic operating in the infrared.
  • the temperature measuring device consists of at least one temperature sensor 1, which provides an output signal proportional to the temperature.
  • a radiation emanating from a fire at a source of fire 2 and received by a narrow or wide detection cone 3 of the temperature sensor 1 as required is received by the temperature sensor 1 and supplies a temperature-proportional output signal of the temperature sensor 1 to an electronics unit 4 which supplies a loudspeaker 5 Alternatively, a pair of headphones 7 or other acoustic transducer drives via a connecting cable 6, which convert the measured temperature into an acoustic signal which is directly proportional to the temperature.
  • the temperature-proportional signal of the temperature sensor 1 is converted into an equivalent frequency-proportional signal that when the temperature measuring device on the low-temperature fire 2 a low tone and high-temperature focus on the fire 2 is audible.
  • a basic pitch can be specified, which adjusts itself at room temperature.
  • a temperature gradient can be specified, which indicates which frequency change corresponds to which temperature change. For example, you can specify that a highest yet well-perceptible frequency is reconciled with the highest expected temperature.
  • an adjustment of the sensitivity can be made by the temperature gradient is set manually.
  • corresponding characteristics can be impressed if it is known in advance which temperatures or temperature gradients are to be expected.
  • the sensitivity of the temperature measuring device can be done by a simple rotary control. There is thus the possibility to react arbitrarily to small or large temperature gradients. Since the fire fighter is equipped with gloves in case of fire, a slider is also provided for manual adjustment of the sensitivity of the temperature measuring device.
  • the temperature-proportional signal of the infrared sensor 1 is converted into an acoustic amplitude, so that the volume of a defined sound or sound increases with higher temperature.
  • a synthetic sound of a roaring fire can be simulated. The volume this noise increases when the temperature gauge is aligned to a location with a correspondingly higher temperature.
  • the advantage here is the application of a logarithmic characteristic.
  • the temperature measuring device is equipped with two temperature sensors 1,8, which are preferably arranged at a predetermined distance from each other or in the illustrated embodiment preferably V-shaped relative to each other and thus horizontally have different directions of action.
  • the left temperature sensor 1 can supply the signal for the left ear and the right temperature sensor 8 can provide the signal for the right ear.
  • the volume-proportional mode can thus be made an immediate direction determination, and thus the location of the hottest fire hearth 2 are determined.
  • the locating can be done by turning the head, but even with not moving head can, as known in stereo hearing, be closed by the transit time differences on the direction of the sound source. Thus it is for the firefighter as well when the head is not moving, it is possible to locate the direction of a fire.
  • the two temperature sensors are attached directly coupled to the helmet of the firefighter with the headphones 7, so that a head rotation also directly allows the direction detection, or that the two temperature sensors are arranged on a portable mobile temperature measuring device and the entire temperature measuring device is rotated.
  • the temperature measuring device with two temperature sensors 1,8 can also be kept rotated by 90 °, so that the temperature sensor 1 arranged on the left points downwards and the temperature sensor 8 arranged on the right upwards. In this orientation, the height of the source of fire 2 in the room can be determined in addition.
  • the temperature measuring device can be additionally equipped with a tracking system, which detects its position and the scanning direction of the temperature measuring device and these supplied by radio to a control center. Likewise, the temperature determined by the " temperature measuring device can be communicated to the control center by radio.”
  • a tracking system which detects its position and the scanning direction of the temperature measuring device and these supplied by radio to a control center.
  • the temperature determined by the " temperature measuring device can be communicated to the control center by radio.”
  • the mechanical probe 9 still has a telescopic extension 10, which can engage in the extended state. Furthermore, a ball 11 is provided on the probe tip of the Taststockes 9, which additionally has a temperature sensor 12 for contact measurements, for example, to measure the temperature of a door handle targeted.
  • the mechanical tool stick 9 can be used to supplement the temperature image, which determines the acoustic output of the temperature measuring device, by the tactile image of the mechanical environment with the mechanical probe, wherein between the individual temperature sensors 1,8 for a non-contact temperature measurement and the temperature sensor 12 a switchover is provided for the contact measurement.

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Engineering & Computer Science (AREA)
  • Human Computer Interaction (AREA)
  • Measuring Temperature Or Quantity Of Heat (AREA)
  • Radiation Pyrometers (AREA)
  • Fire-Detection Mechanisms (AREA)
  • Measuring And Recording Apparatus For Diagnosis (AREA)

Abstract

L'invention concerne un appareil de mesure de température pouvant être utilisé, en particulier, dans la lutte contre l'incendie et pour la recherche de personnes blessées dans les situations de fort dégagement de fumée et de mauvaise visibilité. L'appareil comprend un dispositif mobile pour la détection de température et des moyens de transmission à un utilisateur. L'invention est caractérisée en ce qu'un appareil de mesure de température présente au moins un capteur de température (1) qui transmet à une unité électronique (4), un signal de sortie proportionnel à la température à mesurer d'un foyer d'incendie (2), et en ce que l'unité électronique (4) transmet le signal de sortie, soit à un haut-parleur (5) qui est connecté avec ladite unité, soit directement à un casque d'écoute (7), soit les deux à la fois, le haut-parleur (5) et/ou le casque d'écoute convertissant le signal de sortie en un signal acoustique pour un utilisateur.
PCT/EP2008/004475 2007-06-16 2008-06-05 Appareil de mesure de température Ceased WO2008155024A2 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE202007008438.2 2007-06-16
DE200720008438 DE202007008438U1 (de) 2007-06-16 2007-06-16 Temperaturmessgerät

Publications (2)

Publication Number Publication Date
WO2008155024A2 true WO2008155024A2 (fr) 2008-12-24
WO2008155024A3 WO2008155024A3 (fr) 2009-03-26

Family

ID=38513936

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2008/004475 Ceased WO2008155024A2 (fr) 2007-06-16 2008-06-05 Appareil de mesure de température

Country Status (2)

Country Link
DE (1) DE202007008438U1 (fr)
WO (1) WO2008155024A2 (fr)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102008030790A1 (de) * 2008-06-28 2009-12-31 Dräger Safety AG & Co. KGaA Schutzhelm mit Gasmessgerät
DE202008015244U1 (de) 2008-11-18 2009-02-26 Carl Zeiss Ag Temperaturmesseinrichtung
DE102014223623A1 (de) * 2014-11-19 2016-03-24 Continental Automotive Gmbh Vorrichtung und Verfahren zum Betreiben eines Induktivladevorgangs eines Fahrzeugs

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3721414A1 (de) * 1987-06-29 1989-01-12 Buil Juergen Detektor fuer waermequellen mit akustischer auswertung
DE4336406C2 (de) * 1993-10-21 1997-11-27 Infratron Optoelektronik Gmbh Wärmepeilgerät zur Brandbekämpfung unter erschwerten Bedingungen
US5751215A (en) * 1996-11-21 1998-05-12 Hall, Jr.; Joseph F. Fire finding apparatus
US6388254B1 (en) * 1998-09-10 2002-05-14 Knox Company Handheld heat detection device

Also Published As

Publication number Publication date
DE202007008438U1 (de) 2007-09-06
WO2008155024A3 (fr) 2009-03-26

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