{"id":8450,"date":"2026-04-15T14:48:44","date_gmt":"2026-04-15T12:48:44","guid":{"rendered":"https:\/\/www.def-france.fr\/etudes-de-cas\/fausses-alarmes-salle-spectacle-detection-incendie-en\/"},"modified":"2026-09-15T11:36:08","modified_gmt":"2026-09-15T09:36:08","slug":"fausses-alarmes-salle-spectacle-detection-incendie","status":"publish","type":"case-study","link":"https:\/\/def-algerie-preprod.wp-ylly.hunik.tech\/en\/etudes-de-cas\/fausses-alarmes-salle-spectacle-detection-incendie\/","title":{"rendered":"False alarms in performance venues: the LOTA line solution"},"content":{"rendered":"<section class=\"custom-block hero-image-block \">\n    <div class=\"container block!\">\n        <div class=\"breadcrumb-container\">\n                            <nav aria-label=\"Breadcrumb\" class=\"rank-math-breadcrumb\"><p><span class=\"last\">Accueil<\/span><\/p><\/nav>\n                    <\/div>\n        <div class=\"content\">\n\t\t\t<div class=\"text-with-button\">\n\t\t\t\t\t\t\t\t\t\n\t\t\t\t\t<p class=\"hero-date\">15 April 2026<\/p>\n\t\t\t\t\t\t\t\t<p class=\"tag\">\n\t\t\t\t\t\t\t\t\t\t\tDetection\n\t\t\t\t\t\t\t\t\t<\/p>\n\t\t\t\t<h1>False Alarms in performance halls: DEF&#039;s solution with the LOTA Line<\/h1>\n\t\t\t\t<div class=\"description\">\n\t\t\t\t\t<p>How can we ensure reliable fire detection in a performance hall that regularly uses smoke effects, without triggering false alarms that disrupt operations and the audience experience?<\/p>\n<p>\u00a0<\/p>\n<p>To address this specific challenge, DEF deployed a solution from the LOTA product line, which is capable of distinguishing between stage effects and an actual fire. A solution tailored to cultural venues, where fire safety must remain impeccable without compromising the smooth running of events.<\/p>\n\n\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t\t\t\t\t\t<a href=\"https:\/\/def-algerie-preprod.wp-ylly.hunik.tech\/en\/expertises\/prendre-rendez-vous\/\" class=\"btn btn-primary\" data-track=\"cta\" data-track-label=\"hero-image\" data-track-text=\"Request an appointment\" data-track-destination='{\"type\":\"internal\",\"name\":\"Request an appointment\",\"page_url\":\"https:\/\/def-algerie-preprod.wp-ylly.hunik.tech\/en\/expertises\/prendre-rendez-vous\/\",\"position\":\"hero\"}'>Request an appointment<\/a>\n\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t\t\t<div class=\"image-right\">\n\t\t\t\t\t<img decoding=\"async\" src=\"https:\/\/def-algerie-preprod.wp-ylly.hunik.tech\/wp-content\/uploads\/sites\/5\/2026\/04\/detecteur-lotca-salle-spectacle-1024x562.png\" alt=\"\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n    <\/div>\n<\/section>\n<section class=\"custom-block text-button-block\">\n    <div class=\"container\">\n        <div class=\"text-with-button !bg-white my-4\">\n            \n            <h2>A common problem in performance venues<\/h2>\n<p>In performance venues and cultural spaces, smoke and haze effects are widely used to heighten the visual experience at concerts, performances and events.<\/p>\n<p>But they can also disturb conventional fire detection systems.<\/p>\n<p>On distingue notamment deux ph\u00e9nom\u00e8nes :<\/p>\n<ul>\n<li>heavy smoke, which lingers at floor level before warming and dispersing;<\/li>\n<li>stage haze, lighter and able to spread quickly through the whole auditorium.<\/li>\n<\/ul>\n<p>In this kind of environment, those particles can be mistaken for the signs of a fire. The result:<strong> unwanted activations and false alarms<\/strong> that disrupt the running of the venue, disorganise the welcome given to the public and undermine the smooth running of events.<\/p>\n<p>For operators the consequences are real: interrupted activity, teams mobilised for nothing, watch patrols put in place or extra staff hired to make up for the limits of the existing system. All of it costly, restrictive and rarely satisfactory in the long run.<\/p>\n<p><strong>The challenge is therefore clear: keep fire safety at a high level while stopping stage effects from becoming a source of disruption.<\/strong><\/p>\n\n\n            \n                    <\/div>\n    <\/div>\n<\/section>\n<section class=\"custom-block flex quotes-block !bg-white\">\n    <div class=\"container flex flex-col gap-[32px] bg-brand-blue  !text-white\">\n      <svg width=\"44\" height=\"40\" class=\"text-accent\">\n        <use href=\"#icon-quote\"><\/use>\n      <\/svg>\n        <p style=\"text-align: center;\">We have been using the LOTA range for a year, and we have had no false alarms since.<\/p>\n<p>&nbsp;<\/p>\n<p style=\"text-align: right;\"><strong>Laurent MURAT<\/strong><br \/>\nStage manager &#8211; Salle du Phare<\/p>\n\n      <div class=\"author text-right\">\n        \n              <\/div>\n    <\/div>\n<\/section>\n<section class=\"custom-block text-button-block\">\n    <div class=\"container\">\n        <div class=\"text-with-button !bg-white my-4\">\n            \n            <h2>The answer: detection that can tell the difference<\/h2>\n<p>To meet this challenge, DEF deployed a fire detection solution from the LOTA range.<\/p>\n<p>The technology analyses the particles in the air in far greater detail in order to <strong>tell stage effects such as heavy smoke or haze apart from a real fire.<\/strong> Thanks to this advanced discrimination, the system loses none of its detection ability while adapting to the particular constraints of performance venues.<\/p>\n<p>The aim is not to reduce sensitivity in order to avoid alarms, but on the contrary to make detection more dependable by making it more intelligent and better matched to how the venue is used.<\/p>\n<p>Installed for about a year, the solution has made it possible <strong>to eliminate false alarms caused by stage effects entirely<\/strong>, while keeping detection reliable when the risk is real.<\/p>\n<p>This lets the venue teams plan their events in a calmer setting while keeping audiences safe.<\/p>\n<h2>Support from DEF: beyond the technology, an answer designed around operations<\/h2>\n<p>With this installation, DEF helps operators of cultural venues adapt their fire safety system to the realities of their activity.<\/p>\n<p>Beyond the technology itself, the value lies in end-to-end support:<\/p>\n<ul>\n<li>analysis of the site\u2019s operating constraints;<\/li>\n<li>identification of the stage effects likely to affect detection;<\/li>\n<li>choice of a solution matched to the venue\u2019s real environment;<\/li>\n<li>implementation and integration into the existing infrastructure;<\/li>\n<li>follow-up over time to keep the system dependable.<\/li>\n<\/ul>\n<p>This approach reconciles three essential concerns: <strong>fire safety, continuity of operation and the quality of the welcome given to the public.<\/strong><\/p>\n<p>With this tailored answer, the teams can now put on concerts, shows and community events with greater peace of mind, while maintaining the level of safety required by local authorities and regulators.<\/p>\n\n\n            \n                    <\/div>\n    <\/div>\n<\/section>\n<section class=\"custom-block flex quotes-block !bg-white\">\n    <div class=\"container flex flex-col gap-[32px] bg-quotes-beige  !text-black\">\n      <svg width=\"44\" height=\"40\" class=\"text-accent\">\n        <use href=\"#icon-quote\"><\/use>\n      <\/svg>\n        <p style=\"text-align: center;\">We brought DEF in so that we would be compliant, with their LOTCA detector range certified to NF-EN54-5, NF-EN54-7, NF-EN54-31, NF-EN54-17 and NF-EN54-18.<\/p>\n<p>&nbsp;<\/p>\n<p style=\"text-align: right;\"><strong>Bruno LOMBARDO<\/strong><br \/>\nDeputy Mayor<br \/>\nResponsible for Municipal Heritage and Public Works<\/p>\n\n      <div class=\"author text-right\">\n        \n              <\/div>\n    <\/div>\n<\/section>\n<section class=\"custom-block video-block\">\n    <div class=\"container grid gap-8 md:gap-4 lg:gap-11\">\n        <div class=\"text-presentation text-center place-self-center\">\n            <p class=\"subtitle\">En vid\u00e9o<\/p>\n            <h2>See how DEF\u2019s LOTA detector range can help you avoid disruptive false alarms<\/h2>\n            <div class=\"description\">\n                <p>See how DEF\u2019s LOTA detector range can help you avoid disruptive false alarms. In this video, a satisfied customer shares their experience at the landmark Salle du Phare venue. You will see how DEF\u2019s LOTA detectors are built to identify stage smoke, cigarette smoke and much more with precision, while avoiding needless activations.<\/p>\n\n            <\/div>\n        <\/div>\n\n        \n                    <iframe class=\"w-full aspect-video rounded-[20px] max-w-6xl mx-auto my-8\" src=\"https:\/\/www.youtube.com\/embed\/smOnzoI5S6U\"\n                title=\"YouTube video player\" frameborder=\"0\"\n                allow=\"accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture; web-share\"\n                referrerpolicy=\"strict-origin-when-cross-origin\" allowfullscreen><\/iframe>\n                    <\/div>\n<\/section>\n<section class=\"custom-block cta-block\">\n    <div\n        class=\"container\">\n        <div class=\"cta-card bg-[url('\/resources\/images\/original-network-dark-theme.svg')] bg-no-repeat md:bg-right max-md:bg-bottom md:min-h-80! bg-brand-blue! text-white\">\n            <div class=\"text-with-button\">\n                <h2>Request information about the LOTA range<\/h2>\n                <div class=\"description\">\n                    See how DEF\u2019s LOTA detector range can help you avoid disruptive false alarms\n                <\/div>\n                                                    <a href=\"https:\/\/def-algerie-preprod.wp-ylly.hunik.tech\/en\/expertises\/gamme-lota\/\" class=\"btn btn-primary\" data-track=\"cta\" data-track-label=\"cta-block\" data-track-text=\"Gamme LOTA\" data-track-destination='{\"type\":\"internal\",\"name\":\"Gamme LOTA\",\"page_url\":\"https:\/\/def-algerie-preprod.wp-ylly.hunik.tech\/en\/expertises\/gamme-lota\/\"}'>\n                        <span>Gamme LOTA<\/span>\n                        <svg width=\"18\" height=\"18\" viewBox=\"0 0 18 18\" fill=\"none\" stroke=\"currentColor\"\n  xmlns=\"http:\/\/www.w3.org\/2000\/svg\">\n  <g clip-path=\"url(#clip0_222_17979)\">\n    <path d=\"M0.642578 9H17.3569\" stroke=\"inherit\" stroke-width=\"1.5\" stroke-linecap=\"round\"\n      stroke-linejoin=\"round\" \/>\n    <path d=\"M12.8555 13.5L17.3555 9L12.8555 4.5\" stroke=\"inherit\" stroke-width=\"1.5\"\n      stroke-linecap=\"round\" stroke-linejoin=\"round\" \/>\n  <\/g>\n  <defs>\n    <clipPath id=\"clip0_222_17979\">\n      <rect width=\"18\" height=\"18\" fill=\"white\" \/>\n    <\/clipPath>\n  <\/defs>\n<\/svg>\n                    <\/a>\n                            <\/div>\n        <\/div>\n    <\/div>\n<\/section>\n","protected":false},"excerpt":{"rendered":"<p>Smoke and fog effects used in performance venues can trigger false alarms and disrupt operations at cultural venues. Learn how DEF&#8217;s LOTA line helps distinguish between stage effects and an actual fire to ensure reliable and compliant fire detection.<\/p>\n","protected":false},"featured_media":6677,"template":"","product_taxonomy":[],"profession":[233,235,234],"sector":[249],"service":[263,260,261,259,262],"solution":[],"case_study_category":[],"class_list":["post-8450","case-study","type-case-study","status-publish","has-post-thumbnail","hentry","profession-bureau-detudes","profession-installateurs","profession-exploitant","sector-culture-spectacle","service-realiser","service-maintenir","service-moderniser","service-exploiter","service-preparer"],"acf":[],"_links":{"self":[{"href":"https:\/\/def-algerie-preprod.wp-ylly.hunik.tech\/en\/wp-json\/wp\/v2\/case-study\/8450","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/def-algerie-preprod.wp-ylly.hunik.tech\/en\/wp-json\/wp\/v2\/case-study"}],"about":[{"href":"https:\/\/def-algerie-preprod.wp-ylly.hunik.tech\/en\/wp-json\/wp\/v2\/types\/case-study"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/def-algerie-preprod.wp-ylly.hunik.tech\/en\/wp-json\/wp\/v2\/media\/6677"}],"wp:attachment":[{"href":"https:\/\/def-algerie-preprod.wp-ylly.hunik.tech\/en\/wp-json\/wp\/v2\/media?parent=8450"}],"wp:term":[{"taxonomy":"product_taxonomy","embeddable":true,"href":"https:\/\/def-algerie-preprod.wp-ylly.hunik.tech\/en\/wp-json\/wp\/v2\/product_taxonomy?post=8450"},{"taxonomy":"profession","embeddable":true,"href":"https:\/\/def-algerie-preprod.wp-ylly.hunik.tech\/en\/wp-json\/wp\/v2\/profession?post=8450"},{"taxonomy":"sector","embeddable":true,"href":"https:\/\/def-algerie-preprod.wp-ylly.hunik.tech\/en\/wp-json\/wp\/v2\/sector?post=8450"},{"taxonomy":"service","embeddable":true,"href":"https:\/\/def-algerie-preprod.wp-ylly.hunik.tech\/en\/wp-json\/wp\/v2\/service?post=8450"},{"taxonomy":"solution","embeddable":true,"href":"https:\/\/def-algerie-preprod.wp-ylly.hunik.tech\/en\/wp-json\/wp\/v2\/solution?post=8450"},{"taxonomy":"case_study_category","embeddable":true,"href":"https:\/\/def-algerie-preprod.wp-ylly.hunik.tech\/en\/wp-json\/wp\/v2\/case_study_category?post=8450"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}