Image-capturing device, in particular person-counting mechanism, having a housing which is transparent in the infrared range and nontransparent in the optically visible range

An image-capturing device, comprising:

• a housing having at least one part;
• a camera accommodated in said housing for continuous image capturing and a generation of corresponding image data, said camera is a thermal-imaging camera for capturing thermal images;
• said at least one part of said housing one of lying in a field of view of said thermal-imaging camera or is embodied as an optical lens and constructed at least substantially transparent in an infrared range and nontransparent in an optically visible range;
• and
• said thermal imaging camera containing a sensor selected from the group consisting of a thermopile thermal-imaging sensor and a micro bolometer thermal-imaging sensor with a resolving power such that a person is captured when the image-capturing device is mounted correctly on a ceiling, and said sensor having a maximum resolution in a range of from 1 to 20 cm.

An image-capturing device, comprising:

• a person-counting mechanism, containing:
• a housing having at least one part;
• a camera accommodated in said housing for continuous image capturing and a generation of corresponding image data, said camera is a thermal-imaging camera for capturing thermal images;
• said at least one part of said housing one of lying in a field of view of said thermal-imaging camera or is embodied as an optical lens and constructed at least substantially transparent in an infrared range and nontransparent in an optically visible range;
• and
• said thermal imaging camera containing a sensor selected from the group consisting of a thermopile thermal-imaging sensor and a micro bolometer thermal-imaging sensor with a resolving power such that a person is captured when the image-capturing device is mounted correctly on a ceiling, and said sensor having a maximum resolution in a range of from 1 to 20 cm;
• and
• an electronic processing unit connected to said thermal imaging camera by means of data technology, and determining a current number of people in the field of view of said thermal imaging camera based on an image-processing person-recognition method and a housing of the image-capturing device is simultaneously said housing of said person-counting mechanism.

A hazard alarm, comprising:

• a detection unit for detecting smoke-particles or combustion gas particles;
• an image-capturing device, containing:
• a housing having at least one part, said housing of said image-capturing device simultaneously being a housing of the hazard alarm;
• a camera accommodated in said housing for continuous image capturing and a generation of corresponding image data, said camera is a thermal-imaging camera for capturing thermal images;
• said at least one part of said housing one of lying in a field of view of said thermal-imaging camera or is embodied as an optical lens and constructed at least substantially transparent in an infrared range and nontransparent in an optically visible range;
• and
• said thermal imaging camera containing a sensor selected from the group consisting of a thermopile thermal-imaging sensor and a micro bolometer thermal-imaging sensor with a resolving power such that a person is captured when said image-capturing device is mounted correctly on a ceiling, and said sensor having a maximum resolution in a range of from 1 to 20 cm.

A system, comprising:

• a plurality of image-capturing devices, each of said image-capturing devices containing:
• a housing having at least one part;
• a camera accommodated in said housing for continuous image capturing and a generation of corresponding image data, said camera is a thermal-imaging camera for capturing thermal images;
• said at least one part of said housing one of lying in a field of view of said thermal-imaging camera or is embodied as an optical lens and constructed at least substantially transparent in an infrared range and nontransparent in an optically visible range;
• and
• said thermal imaging camera containing a sensor selected from the group consisting of a thermopile thermal-imaging sensor and a micro bolometer thermal-imaging sensor with a resolving power such that a person is captured when said image-capturing devices are mounted correctly on a ceiling, and said sensor having a maximum resolution in a range of from 1 to 20 cm;
• and
• a control center connected to said image-capturing devices by means of data technology for a higher-ranking capturing of the image data transmitted by each of said image-capturing devices and/or each of a current number of people determined.