CZ28111U1 - Apparatus for recording scent trail imprint - Google Patents

Description

Apparatus for recording smell marks

Technical field

The technical solution relates to an apparatus for recording the smell footprint, especially for the needs of forensic odorology.

BACKGROUND OF THE INVENTION

At present, the method of forensic technology is used for odor identification, which serves to identify the individual odor of a person with the odor trace created by him at the scene of crime and which is part of the criminal record. The method of odor identification is based on the recognition that each person carries his or her individual odor, which is genetically conditioned and is a constant manifestation of its functions. The person will leave a smell trace on his carrier, ie. on the object or object with which it came into contact, the smell trace as an image of its activity independently of its will. The odor particles that have been eliminated from the odor are constantly escaping into the atmosphere, where they are dispersed (vented). The current method of forensic technology utilizes this wicking of the excreted particles by collecting the excreted particles in the odor sensor fabric, and then preserves the odor-imprinted fabric in the odor can. The scent can be approached as an hermetically sealed preserving jar.

The procedure for carrying out this present method involves the step in which the forensic engineer removes the odor sensor (fabric) from the package and places the odor sensor on the odor trace, closing the package immediately. The odor sensor is only one type of fabric at a given moment of odor trace collection, which is then covered with an aluminum foil and loaded, eventually transported or covered with adhesive tape. It is not possible to use two odor sensors simultaneously at one sampling point. After the required time has elapsed, the odor sensor is removed and sealed in a can of smell, for example in a sterile, hermetically sealed jar. Only one imprint of the smell trace is taken from the smell carrier (object / object) at a time. Then the smell footprint is compared at a specialist workplace for smell identification of persons.

The disadvantages of the above-mentioned method of forensic odorology are that the smell can immediately becomes contaminated after opening, which has a negative effect on criminal proceedings, and therefore each can can be used only once for the sake of evidence in criminal proceedings. Odor cans, as a rule an ordinary preserving jar, are difficult to store because they take up a lot of space and thus poorly database. Furthermore, it is the absence of a device that would allow the method of collecting odor footprints to be performed more efficiently, faster and with more reliable results.

The object of the present invention is to provide an odor footprint recording device that simplifies the practice of forensic odorology, capable of acquiring multiple odor cans from a single odor footprint simultaneously, and allowing the air parameters such as cleanliness, temperature and humidity to be varied.

The essence of the technical solution

The object is solved by providing an apparatus for recording the smell footprint according to the present invention.

The essence of the technical solution consists in the fact that the device consists of an airtight closing circuit with forced air circulation. The circuit includes a hermetically sealable container for wrapping at least a portion of the odor carrier, an inlet conduit connecting the hermetically sealable container to at least one odor can containing at least one odor sensor for absorbing odor particles released from the odor carrier, and last but not least, an outlet conduit connecting the scent can with the hermetically sealed container to maintain a constant volume of circulating air in the circuit, the scent can in the circuit being arranged with the possibility of replacing it.

CZ 28111 Ul

The device does not draw in atmospheric air, but forces air contained in a hermetically sealed package to circulate. There are odor particles in the air that are forced to circulate through the odor sensor inside the can. Due to the circulation and the enclosed environment, more odor particles will be trapped than the current method and its means. At the same time, if only one odor can with one odor sensor is used, up to several odor cans with an identical odor footprint are obtained from one sampling site within one sampling. After the odor air circulation is closed and the cans are closed, some of the can volume remains in the cans, which also leads to a higher efficiency in collecting odor traces.

In another preferred embodiment of the odor footprint recording apparatus of the present invention, the apparatus comprises a circulation unit having at least one air circulation fan, and an air distributor connected to the air duct, comprising at least one adapter for replaceable odor can connection. The circulation unit ensures air circulation, the switchboard with adapter provides the operator with an easy installation and replacement of the odor can.

In another further preferred embodiment of the odor footprint recording apparatus according to the present invention, a plurality of odor cans are connected in the circuit, being connected in parallel and / or in series in the circuit. Both types of connection are suitable for recording a higher number of smell marks during one operation of the instrument.

In another preferred embodiment of the odor footprint recording apparatus of the present invention, the odor can is formed by at least one tube within which the odor sensor is housed. The tube is equipped with shut-off valves at both ends. The odor can also be a divisible cassette, each separable portion of which is independently hermetically sealable and contains its own odor sensor. Tube odor cans are easy to store, easy to apply to the machine. Cassette odor cans break off during criminal proceedings when individual detachable parts are removed from the rest of the odor can and depreciated during the smell trace imprint analysis.

In another further preferred embodiment of the odor footprint recording apparatus of the present invention, the odor can comprises at least two different types of odor sensors. The odor sensors can be selected according to the situation and the type of odor carrier. The apparatus preferably allows the variable use of up to several different types of odor cans. Odor scanners can be specialized for fingerprints of biological odors, which are evaluated eg by specially trained dogs, or for fingerprints of synthetic odors, which are analyzed by chemical analyzers and spectrograph.

In another preferred embodiment of the odor footprint recording apparatus of the present invention, the hermetically sealable package has at least two apertures for connecting the connecting hoses and is provided with at least one adhesive surface for hermetically sealing it and / or hermetically fastening to the odor foot carrier. If it is necessary to increase the volume of air flow this can be done by increasing the cross-section of the connecting hoses or by increasing their number. For better handling and easier closing of the package, the package is provided with an adhesive surface, or if the carrier is larger than the package or it is extremely disadvantageous to package the entire odor carrier, the adhesive rim can be secured to the portion of the odor carrier.

In another preferred embodiment of the odor footprint recording apparatus of the present invention, the hermetically sealable container adapted to sense odor from the human body is funnel-shaped. The wider funnel base is provided with an adhesive rim for attachment to the skin and further has at least two apertures for connecting connecting hoses. The human body produces enough odor particles, so the main function of the package is to keep it well on the body and to allow good air circulation.

In another preferred embodiment of the odor footprint recording apparatus of the present invention, the odor can is formed by at least one tube within which the odor sensor is housed. The tube is equipped with shut-off valves at both ends. The odor can also be a divisible cassette, each separable portion of which is independently hermetically sealable and contains its own odor sensor. Canned scents in the form of tubes

are easy to store, easy to apply to the machine. Cassette odor cans can be divided in the course of criminal proceedings, when individual detachable parts are devalued and removed from the rest of the odor can.

In another further preferred embodiment of the odor footprint recording apparatus of the present invention, the odor can comprises at least two different types of odor sensors. The odor sensors can be selected according to the situation and the type of odor carrier. The apparatus preferably allows the variable use of up to several different types of odor cans.

In another preferred embodiment of the odor footprint recording apparatus according to the present invention, the circulation unit is provided with at least one other device of the group of circulating air treatment filter, a measuring means for measuring the ambient and circulating air parameters, or a recording means for recording measurement data. and apparatus operation and data storage, or germicidal emitter for sterilizing the circulation unit. Furthermore, the circulation unit may be provided with a communication interface for communication between the operator and the apparatus, a battery for supplying the apparatus, lighting, a holder for attaching the apparatus to a tripod and, last but not least, heating for apparatus heating. The apparatus may include some, all or repeatedly the above devices. The design of the device depends on the equipment requirements and the cost.

In another further preferred embodiment of the odor footprint recording apparatus of the present invention, the filter is at least one of a particulate filter, a granular moisture filter.

In dusty environments, it is necessary to prevent the settling of solid particles in the odor cans. At the same time, the humidity of the air can affect the proportion of odorous particles dispersed in the air, so it is good to control the moisture by means of a granulate filter.

In another preferred embodiment of the odor footprint recording apparatus according to the present invention, the measuring means comprises at least one of a flowmeter for measuring airflow, a thermometer, a humidity meter for measuring air humidity, and a clock for monitoring time. The measuring means senses the physical parameters before and during the use of the device, be it environmental or circulating air parameters. This data is important for the calibration of other measurements and during the evaluation of the tracks.

In another preferred embodiment of the odor footprint recording apparatus of the present invention, the flow meter is provided with a control valve for controlling the air flow through the apparatus. At the same time, the flowmeter serves as an air circulation regulator to establish the most suitable conditions during odor trace collection.

In another further preferred embodiment of the apparatus for recording the smell footprint according to the present invention, the communication interface comprises at least one device from the group of a working light signaling device, a display, a keypad for controlling the operation of the device, a USB connector for connection to an external device. The communication interface shows the operation and status of the instrument to the operator, as well as allowing the operator access to the measured data and parameters, including the insertion of instructions by the operator into the instrument. Last but not least, it allows electronic transmission of data with external devices such as track and person databases.

In another preferred embodiment of the odor footprint recording apparatus of the present invention, the apparatus is provided with a humidity probe for measuring the moisture of the odor track carrier and an external thermometer for measuring the temperature of the odor track carrier. The detection of the odor carrier parameters allows the operator to select suitable odor sensors, and this detection tells the operator, for example, how long the odor trace should take and other information.

Advantages of the device for recording the smell footprint include the possibility of creating an identical fingerprint up to several smell cans simultaneously. This gives criminalists the ability to work with fingerprints without worrying about the complete loss of traces during criminal proceedings. A further advantage is the possibility of using up to several types of different odor sensors simultaneously and it is furthermore advantageous that the air with odor particles is enclosed in cans simultaneously with the odor sensor. The device configuration allows easy field operation, recording and archiving

- 3.

environmental parameters and parameters of the odor trace collection and control of the odor trace collection.

Clarification of drawings

This technical solution will be explained in more detail in the following drawings, where:

Fig. 1 shows a schematic construction of an apparatus for recording an odor footprint; Fig. 2 shows a canned odor; Fig. 3 shows a detailed diagram of the circulation unit of the apparatus.

Example of technical solution implementation

It is to be understood that the specific embodiments of the invention described and illustrated below are presented by way of illustration and not by way of limitation of the examples of the invention to the examples given. Those skilled in the art will find or will be able to provide, using routine experimentation, more or less equivalents to the specific embodiments of the invention described herein. These equivalents will also be included within the scope of the following protection claims.

The odor footprint recording apparatus of FIG. 1 comprises two basic parts. A hermetically sealable container 2, which envelops at least a portion of the odor track carrier 3, and an air circulation unit 4 containing the odor particles over at least one flowable odor can 5. Between these parts the air circuit L is closed. with which the suspect should have been in contact, or part of the suspect's skin. The package 2 is formed by an impermeable plastic film into which the carrier 3 is packaged. In order not to open the package 2 arbitrarily, the package 2 is provided with at least one adhesive surface or, in another embodiment, an airtight zipper. Furthermore, in the package 2 there are two openings for the circulating air duct 7 and T '.

The circulation unit 4 is formed by a hollow body with solid walls. Hard plastic or stainless steel sheet serves as the material for production. In the walls of the body of the circulation unit 4 there are openings for connecting the air ducts 7 and 71. Both air ducts 7 and 71 are, for example, plastic hoses. Inside the circulation unit 4, the canisters 5 are connected in the air distributor. The canisters 5 are compatible with the adapters for their connection and easy replacement. The circulation unit 4 also includes a fan 12, which provides forced air circulation through circuit 1. The device is powered by several Li-Ion batteries 18.

The odor cans 5 are either connected in series and / or in parallel in the distributor of the circulation unit 4. Each type of connection brings certain benefits that the operator will take advantage of when taking odor traces. The main common advantage is that several tracks are taken simultaneously from a single odor carrier 3. In parallel connection, odor cans 5 in the form of plastic or stainless steel tubes 8 are used, in series connection the cassette odor can 5 is used. The separable canister 10 of odor can 5 is made of hard plastic and has fracture areas which divide it into individual separable parts 1_1. Each detachable part 11 has its own container for storing the odor sensor 6 with shut-off valves 9. The series connection is particularly good for obtaining a large number of odor cans 5, the parallel connection is particularly suitable for the inclusion of odor cans 5 with different odor sensors 6.

In FIG. 2, a possible embodiment of the odor cans 5 is suggested. The odor can 5, the body of which is made of a plastic tube 8, is sealed at both its ends by lockable valves 9. Inside the tube 8 a odor sensor 6 is mounted. of the separable parts 11, in the illustrated embodiment, these are three parts. The separable portions 11 are interconnected such that the circulating air passes through the separable portions 11 successively. Each of the separable parts Π. it can be hermetically sealed by valve 9 and broken off from the separable cassette

10. In detachable parts Π. is the same type of odor sensor 6, but it is possible to combine the odor sensors 6 in another exemplary embodiment of the cassette-type odor can 5.

- And.

CZ 28111 Ul

The circulation unit 4 itself is expandable with additional equipment, as shown in block 3, where each block of equipment is shown only once for clarity. The expansion of the equipment is based on a particulate filter 13 and a granular filter 13 against air humidity. Further important is the measuring means 14, which is realized by integrated temperature thermometers around the device for recording odor footprints, thermometers for measuring air temperature in circuit I, air flow meter in circuit 1, as well as hygrometer for ambient environment of the instrument and hygrometer for circulating air in circuit I. The circulation unit 4 includes a digital clock for time monitoring. The flowmeter is equipped with an automatic throttle valve, so that the air flow in circuit I not only measures but also automatically checks according to the settings. Thermometers and hygrometers are catalog electronic components.

Furthermore, the device is provided with a communication interface 17 embedded in the circulation unit 4. The communication interface 17 comprises indicator lights for operating the device, maintenance indicator lights, or warning lights. It is also a display that shows measured values, elapsed time and other information about the status and operation of the instrument. The device is controlled by a keypad and is also equipped with a USB connector for connecting an external device such as a laptop. The measured data, odor tracing information and time data are recorded in a flash memory recording means 15. From the recording means 15, the data is transferred via a USB connector to a notebook, where it is archived for transmission to a database with a later digitized odor track.

Furthermore, a germicidal radiator 16 is installed inside the circulation unit 4 for sterilizing the switchgear, adapters and air duct connections 7 and 7. The germicidal emitter 16 produces strong UV radiation at a wavelength of 230 nm. In the circulation unit 4, an interior space lighting 19 is also incorporated. Lighting 19 is provided by incandescent lamps at an operating voltage of 12 V, or a block of light-emitting diodes. Inside the body of the circulation unit 4, resistive heating elements forming the heating 21 are also incorporated.

A steel holder 20 is attached to the body of the circulation unit 4 for connection to a tripod not shown, and a moisture probe 22 for measuring the moisture of the odor carrier and an external thermometer 23 for measuring the temperature of the odor carrier are connected externally to the circulation unit 4.

The actual operation for recording the smell footprint by the device is as follows:

The operator places the smell trace carrier 3 in the package 2 and hermetically closes the package 2, or envelopes the smell trace carrier 3 hermetically, or secures the edges with an adhesive tape. In the case of an impression being taken from the bare body, it places the funnel-shaped package 2 on the bare body and hermetically seals the location of the package by sealing it with adhesive tape.

It then connects the packaging with 2 tubes to the device for recording the smell trace. It then inserts the appropriate types of odor cans 5 with the necessary types of odor sensors 6. It selects the desired values on the keypad of the communication interface 17 and starts the device. Air from the package 2 starts to circulate through the apparatus through the canned smells 5 and the filters 13.

After the odor footprint has been preserved, the operator turns off the device, hermetically closes the odor cans 5 and removes them from the device. Furthermore, the carrier 3 removes the smell trace carrier 3 and sterilizes the device. Thereafter, after insertion of additional odor cans 5, the preservation of the imprints from the further odor trace carrier 3 can continue.

Industrial applicability

The device for recording the smell footprint according to the technical solution finds application in the criminal service in the investigation of criminal activity, where it will be used for acquiring odor footprints in the field of odorology, and it will be used by the fire brigade inspectors to investigate the origin of the fire.

Claims (13)

PROTECTION REQUIREMENTS Apparatus for recording an odor footprint, characterized in that it comprises an airtightly sealable circuit (1) with forced air circulation, comprising a hermetically sealable container (2) for wrapping at least a portion of the odor trace carrier (3), an inlet conduit (7) connecting the hermetically sealable container (2) to the at least one odor can (5) comprising at least one odor sensor (6) for absorbing odor particles released from the odor trace carrier and an outlet conduit (7 ') connecting the odor can (5) to the hermetically sealable container (2) 2) to maintain a constant volume of circulating air in the circuit (1), wherein the odor can (5) is arranged in the circuit (1) to be exchanged. Apparatus according to claim 1, further comprising a circulation unit (4) having at least one air circulation fan (12) and an air distributor connected to the air duct (7, 7 ') with at least one adapter for air circulation. removable canned odor connection (5). Apparatus according to claim 1 or 2, characterized in that a plurality of odor cans (5) are connected in the circuit (1) and are connected in the circuit (1) in parallel and / or in series. Apparatus according to claim 3, characterized in that the odor can (5) is formed by at least one hermetically sealable tube (8), inside which a odor sensor (6) is provided, provided with shut-off valves (9) at both ends and / or it consists of a divisible cassette (10), each separable part (11) of which is hermetically sealable and contains its own odor sensor (6). Apparatus according to one of claims 1 to 4, characterized in that the odor can (5) comprises at least two different types of odor sensors (6). Apparatus according to one of Claims 1 to 5, characterized in that the hermetically sealable container (2) has at least two openings for connecting the conduit (7, 7 ') and is provided with at least one adhesive surface for hermetically closing it and / or hermetically fixing to the odor trace carrier (3). Apparatus according to one of claims 1 to 5, characterized in that the hermetically sealable odor sensing container (2) has the shape of a funnel, the wider base of which is provided with an adhesive rim for attachment to the skin and further has at least two apertures for connecting the conduits. (7, 7 ') of air. Apparatus according to any one of claims 2 to 7, characterized in that the circulation unit (4) is provided with at least one other device from the group of a filter (13) for treating circulating air, a measuring means (14) for measuring the parameters of the surroundings of the apparatus and circulating. air, a recording means (15) for recording and storing the measured data, a germicidal radiator (16) for sterilizing the circulation unit (4), a communication interface (17) for communication between the operator and the instrument, batteries (18) for powering the instrument, lighting (19) ), a holder (20) for mounting on a tripod and heating (21) for heating the apparatus, odor cans (5) and circulating air. The apparatus of claim 8, wherein the filter (13) is at least one of a particulate filter, a granular moisture filter. Apparatus according to claim 8 or 9, characterized in that the measuring means (14) is formed by at least one device from the group of a flow meter for measuring air flow, a thermometer, a humidity meter for measuring air humidity and a clock for monitoring time. The apparatus of claim 10, wherein the flow meter is provided with a control valve for controlling the air flow through the apparatus. Apparatus according to any one of claims 8 to 11, characterized in that the communication The UI interface (17) is comprised of at least one device from the group of a light for indicating the operation of the device, a display, a keypad for controlling the operation of the device, a USB connector for connection to an external device. Apparatus according to one of claims 1 to 12, characterized in that it is further provided with a humidity probe (22) for measuring the moisture of the odor track carrier (3) and an external thermometer (23) for measuring the temperature of the odor track carrier (3). 3 drawings