CN110749594A - Detection method of hand-held explosive and drug colorimetric analyzer - Google Patents
Detection method of hand-held explosive and drug colorimetric analyzer Download PDFInfo
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- G—PHYSICS
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- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
- G01N21/75—Systems in which material is subjected to a chemical reaction, the progress or the result of the reaction being investigated
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- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
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- G01N21/01—Arrangements or apparatus for facilitating the optical investigation
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
- G01N21/84—Systems specially adapted for particular applications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
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Abstract
The invention relates to a method for detecting a hand-held colorimetric analyzer for explosives and drugs, which comprises a driving board, a mainboard, a sampling module, an image acquisition module, an identity card module, a thermal printer module, a chirping alarm module, an LED indicator lamp, a low-temperature polymer lithium battery, a display module and a power switch, wherein when the analyzer is used, after an array test card is used for acquiring an object to be detected, the array test card is inserted into an insertion port of the test card to trigger a microswitch, a detection starting icon of the display module is clicked, a specific detection result can be obtained within about 8s, the display module is used for displaying the detection result, for example, red light of a suspicious object LED indicator lamp flickers and the chirping alarm module chirps to alarm, if the suspicious object LED indicator lamp keeps green light long and bright and has no chirping signal, and meanwhile, the information of a person to be detected can be acquired into the mainboard through the identity card module, and printing detection information through a thermal printer module on site, and uploading detection data to a corresponding background server in real time through a network port of the mainboard.
Description
Technical Field
The invention belongs to the field of explosive and drug detection, particularly relates to an intelligent chemical analysis technology, and discloses a detection method of a handheld colorimetric analyzer for explosives and drugs
Background
Since the invention of Nobel safety explosive in the seventies of the eighteenth century, explosive plays an extremely important role in the development of modern society, particularly in the military field, aerospace field, infrastructure field and some industrial fields. In recent years, with the expansion of the application range of explosives, the appearance of new varieties of explosives, and the invention of new explosives. Explosives and drug detectors are mostly applied to various fields such as airports, railway stations, port public places and the like, the current portable explosive detection method comprises a Raman spectrum technology, a fluorescence technology, an ion mobility spectrum technology, a colorimetric technology and the like, and the detection technologies have certain defects;
for example, when the handheld raman spectroscopy detector detects explosives, although the composition information of the explosives can be obtained within a few seconds, when the laser emitted by the handheld raman spectroscopy detector is irradiated on the surface of the explosives, the local temperature of the surface of the explosives can be increased within a few seconds, so that the risk of explosion is still caused, and the application of the handheld raman spectroscopy detector in detecting suspicious explosives is limited.
Although Ion Mobility Spectrometry (IMS) technology is high in sensitivity and high in detection speed, a conventional Ion Mobility spectrometer generally uses a radioactive element Ni as an Ion source, and particularly has radioactive pollution, which can pose a potential threat to the health of a user and is not favorable for popularization.
The colorimetric technique is the most promising method in the detection field because of its simple operation, capability of detecting the components of explosives, rapidness, sensitivity and intuitive and reliable result.
Colorimetric detection methods or products have been developed in some fields.
Patent 201510267366.X provides a method for rapidly detecting sulfur in explosives, which is based on a chemical colorimetric method, a suspicious sample is not required to be dissolved, a detection reagent prepared from a mixed solution of strong base, alcohol and dimethyl sulfoxide at room temperature is directly dripped onto an extracted suspicious sample placed on filter paper, and if the suspicious sample contains sulfur, a layer of orange-red polysulfide can be formed on the surface of the suspicious sample on the filter paper within 2 seconds, so that the existence of the sulfur is determined.
The invention patent 201811000105.1 provides a reagent for rapid colorimetric detection of nitrate and nitrite, which is prepared from aniline compounds and strong acid, and the detection reagent shows high selectivity to nitrate and nitrite, thereby ensuring that the invention can detect nitrate and nitrite in trace non-standard explosives. The reagent can achieve naked eye visible color change 3s after being contacted with nitrate and nitrite, thereby realizing low-cost, instant and trace detection of nitrate and nitrite.
The United states Gaketchun hand-held drug explosive hazardous article detector has the following defects: the operation is complex, one sampling card can only detect one type of sample, the mixture cannot be detected, and the like.
Disclosure of Invention
The invention aims to overcome the technical problems of the prior art, such as low detection efficiency and limited applicability, and provides a detection method of a hand-held colorimetric analyzer for explosives and drugs, which relates to an analyzer consisting of a drive board, a mainboard, a sampling module, an image acquisition module, an identity card module, a thermal printer module, a buzzer alarm module, an LED indicator lamp, a low-temperature polymer lithium battery, a display module and a power switch, wherein when the analyzer is used, after an array test card is used for acquiring an object to be detected, the array test card is inserted into a test card insertion port, a microswitch is triggered, a start detection icon of the display module is clicked, a specific detection result can be obtained in about 8s, the display module displays the detection result, for example, the LED indicator lamp detects that a suspicious object flickers and sounds along with the alarm module to alarm, if the suspicious LED indicating lamp is not detected to keep the green light long and bright and no chirping signal, the information of the detected personnel can be collected into the mainboard through the identity card module, the detection information can be printed through the thermal printer module on site, and the detection data is uploaded to the corresponding background server through the network port of the mainboard in real time. The image acquisition module comprises an industrial camera and an optical system, and the optical system is used for providing uniform illumination when acquiring pictures; the industrial camera is used for photographing the color development area of the standard substance or the substance to be detected on the array type test card, the RGB value in the picture is extracted through image recognition and converted into HSV value, the standard color library of the explosive or the drug corresponding to each area is established, the HSV value of each area on the color development picture of the substance to be detected is combined, and the detection result is reported through threshold value screening. The invention can realize trace detection of explosives and drugs and has simple operation. The defect that reagents are poor in timeliness in sequential detection is overcome, the identification accuracy is enhanced, complex operation is structurally overcome, one-step operation full-area detection is achieved, and the detection efficiency is high.
The invention relates to a detection method of a hand-held colorimetric analyzer for explosives and drugs, which comprises a drive board (10), a mainboard (8), a sampling module (16), an image acquisition module (18), an identity card module (6), a thermal printer module (7), a buzzer alarm module (12), an LED indicator lamp (11), a low-temperature polymer lithium battery (5), a display module (9) and a power switch (17), wherein the drive board (10) is mainly used for detection of a microswitch (13), control of a light supplement lamp panel (3), drive of an industrial camera (1), drive of the identity card module (6), control of the LED indicator lamp (11) and communication of the thermal printer module (7), the microswitch (13) is connected with the drive board (10) through an I/O interface, the light supplement lamp panel (3) is connected with the drive board (10) through a charging interface, the industrial camera (1) is connected with the driving board (10) through a DVP interface, the identity card module (6) is connected with the driving board (10) through a TTL serial port, the thermal printer module (7) is connected with the driving board (10) through an RS232 serial port, and the LED indicating lamp (11) is located on the driving board (10); the sampling module (16) consists of a test card insertion port (15) and an array type test card (14); a microswitch (13) and an inclined plane formed by sequentially arranging 4 shafts with different diameters are arranged in the test card insertion port (15); one side of a driving board (10) is connected with a main board (8) through a TYPE C interface, an image acquisition module (18) is arranged at the lower end of an analyzer, an optical system consisting of an industrial camera (1), an annular light supplement lamp board (3), a light homogenizing board (4) and a quartz glass board (2) is arranged in the image acquisition module (18), the number of pixels of the industrial camera (1) is more than 500 thousands, and the array TYPE test card (14) is divided into 12 areas which are not interfered with each other by adopting a screen printing technology and is packaged; the specific operation is carried out according to the following steps:
a. pressing a power switch (17) for 3s for a long time, and waiting for the start of the hand-held explosive and drug colorimetric analyzer;
b. after an object to be detected is collected by an array type test card (14), the array type test card (14) is inserted into a test card insertion port (15), a microswitch (13) is triggered, a detection starting icon of a display module (9) is clicked, and a specific detection result can be obtained in about 8 s;
c. the method comprises the steps that a detection result is displayed through a display module (9), if red light of an LED indicator lamp (11) for detecting suspicious objects flickers and sounds with a buzzer alarm module (12) for alarming, if the LED indicator lamp (11) for detecting suspicious objects does not keep green light long and bright and has no buzzer signal, information of detected personnel can be collected into a main board (8) through an identity card module (6), and the main board (8) is used for receiving picture data uploaded by a driving board (10), identifying images, acquiring GPS data, driving the buzzer alarm module, storing historical data, detecting system state information, controlling uploading data of a network port, displaying a control interface and extracting and feeding back touch operation information;
d. printing, by a thermal printer module (7), detection information on site, the detection information including: identity card information, contact ways, specific places, longitude and latitude and detection results, and detection data can be uploaded to a corresponding background server in real time through a network port of the mainboard (8);
the sampling module (16) comprises: a test card insertion port (15) and an array type test card (14); wherein, the test card insertion port (15) is provided with a microswitch (13) and an inclined plane formed by sequentially arranging 4 shafts with different diameters, so that an external pressing method is replaced, the operation is simpler, and the detection efficiency is higher; the array type test card (14) comprises sampling paper and a reagent array;
the image acquisition module (18) is positioned right above the sampling module (16) and comprises an industrial camera (1) and an optical system, and the number of pixels of the industrial camera (1) is more than 500 ten thousand; the optical system comprises an annular light supplementing lamp plate (3), a light homogenizing plate (4) and a quartz glass plate (2); the array type test card (14) is inserted into the test card insertion port (15) to trigger the micro switch (13), and the industrial camera (1) obtains image characteristic technical data after an object to be tested and a standard working solution act in an environment created by an optical system;
the drive plate (10) includes: micro-gap switch (13) detects, light filling lamp plate (3) control, industry camera (1) drive, ID card module (6) drive, LED pilot lamp (11) control, thermal printer (7) communication, wherein, micro-gap switch (13) are connected with drive plate (10) through the I/O mouth, light filling lamp plate (3) are connected with drive plate (10) through the interface that charges, industry camera (1) are connected with drive plate (10) through the DVP interface, ID card module (6) are connected with drive plate (10) through the TTL serial ports, thermal printer module (7) are connected with drive plate (10) through the RS232 serial ports, LED pilot lamp (11) are located drive plate (10);
the mainboard (8) is used for receiving picture data uploaded by the driving board (10), identifying images, acquiring GPS data, driving a chirping alarm module, storing historical data, detecting system state information, controlling network port uploading data, controlling interface display, and extracting and feeding back touch operation information; the mainboard (8) is connected with the drive board (10) through a TYPE C interface, image identification is used for carrying out data conversion on image data transmitted by the drive board (10) through the TYPE C interface, RGB data of an image are converted into an HSV data format, target color point position information is extracted and threshold value is judged, pixel points in target colors are screened out and recorded through a set standard color library, finally, the position information extraction is carried out on the screened suspicious pixel points through the judgment of a maximum connected domain, the adjacent condition of the pixel points is judged, the size and the occupation ratio information of color blocks are judged to be formed, the area size is used as a judgment basis, if the detected maximum target reaction color block is smaller than a certain area value and the occupation ratio is smaller, the suspicious pixel points are judged to be noise points, the judgment results are not counted, 16 area result information is combined and processed, the judgment results of 16 channels are recorded in sequence, and table look-up is, determining actual reaction substances in the corresponding area, and displaying the result through a display module (9);
the identity card module (6) is used for issuing an identity card information acquisition instruction by the drive board (10), the identity card module (6) acquires identity card information and transmits the identity card information to the mainboard (8) through the TYPE C interface, and the mainboard (8) finishes processing information and storing, calling and transmitting the information;
the GPS data information acquisition is positioned on the main board (8) to realize the extraction, storage, calling and transmission of GPS information;
and the thermal printer module (7) is used for issuing a printing result instruction by the mainboard (8), issuing the instruction to the drive board (10) through the TYPE C interface, and issuing the instruction by the drive board (10) through the RS232 serial port to complete printing of a detection result. Wherein the printing result comprises: identity card information, contact ways, specific places, longitude and latitude and detection results;
the invention relates to a detection method of a hand-held explosive and drug colorimetric analyzer, which has the working principle that:
the sampled array type test card (14) is inserted into a test card insertion port (15) to trigger a microswitch (13), after a drive board (10) detects a signal of the microswitch (13), the drive board (10) drives an optical system, and an industrial camera (1) obtains image characteristic technical data after an object to be tested and a standard working solution act in an environment created by the optical system; the driving board (10) receives image data collected by the industrial camera (1) and transmits the image data to the main board (8) through TYPE C; the main board (8) identifies and processes the image data, judges the color and displays the result through the display module (9); after the detection is finished, the alarm module (12) is sounded, and the LED indicating lamp (11) gives a result; ID card module (6) drive is accomplished in drive plate (10), reads ID card information and uploads mainboard (8), and mainboard (8) carry out GPS information's collection simultaneously, accomplish personnel's information's collection and editor, include: identity card information, contact ways, specific places, longitude and latitude; after the information of the detected personnel is recorded, the driving board (10) completes the driving of the thermal printer module (7), receives the printing information through the RS232 serial port and prints the result; the detection of integrated circuit board information is accomplished in drive plate (10), includes: the electric quantity information, the state of the industrial camera (1) and the state of the microswitch (13) are transmitted to the mainboard (8), and the mainboard (8) detects the state of the system information; the detection data can be uploaded to the corresponding background server in real time through a network port of the mainboard (8).
The invention has the following beneficial effects:
(1) the applicability is wider: compared with colorimetric methods such as a visual colorimetric method, a photoelectric colorimetric method and the like, the method adopts different detection methods, so that the detection application is wider, and the detection environment is wider.
(2) The automatic and instant detection of the instrument is realized: compared with a visual colorimetric method, the method adopts algorithm identification as colorimetric detection, realizes instrumented detection, automation and real-time detection, replaces manual eye observation of the visual colorimetric method, reduces artificial random errors, and reduces labor cost;
(3) the invention has the advantages that: the device has the advantages of measurable mixture, small volume, light weight, convenient carrying, short time consumption, simple operation, no influence of detection environment, specific name of suspicious objects and the like.
The invention relates to a detection method of a hand-held explosive and drug colorimetric analyzer, which integrates a plurality of groups of detection reagents and adopts the structural design of a test card insertion port (15) and the design of an array type test card (14). The array type test card (14) is inserted into the test card insertion port (15) only, and the detection result can be obtained within about 8 seconds. The intelligent chemical analysis system has the characteristics of intelligently and chemically analyzing various standard and non-standard explosive types, and can accurately report the names, the composition components, the danger early warning grades and the like of the explosives. The detection range of the explosive detection device covers more than 20 types of standard explosive types and non-standard explosive types of explosives and more than 10 types of drugs. And moreover, an intelligent application program is developed based on a mainstream operating system, so that analysis can be conveniently and quickly carried out. Meanwhile, the database can be expanded and developed for the second time, and the terminal detection result is uploaded to the server database, so that the detection results in the explosion cases in all regions are expected to be contrasted and analyzed through big data in the future, and the explosion cases are subjected to early warning and intelligent analysis in a targeted manner.
The sets of standard working solutions pass a number of stability tests for use in an array test card (14).
The array type test card (14) is divided into 12 areas which are not interfered with each other by adopting a screen printing technology, and the preparation of the array type test card (14) is completed by a special packaging process.
The invention relates to a detection method of a hand-held type explosive and drug colorimetric analyzer, wherein an array type test card (14) in the method improves the inconvenience and inaccuracy of the traditional detection of explosives and drugs, an algorithm program is utilized and an optical system device is combined, the test card after color development is directly photographed and color development information is analyzed, and trace detection of explosives, such as trinitrotoluene, dinitrotoluene, p-nitrotoluene, PA, Chelidonium, HMX, RDX, PENT, nitroglycerin, nitrite, nitrate, urea and derivatives thereof, ammonium salt, potassium permanganate, peroxides, chlorates, perchlorates, sulfur, mixed explosives, ammonium sulfur explosives, ammonium TNT explosives, toxic cocaine, Quik, hemp, heroin, virus, Maguo and the like is realized. The method overcomes the inaccuracy and complexity caused by comparing the color comparison card by naked eyes in the prior art.
Drawings
FIG. 1 is a schematic diagram of the appearance of a hand-held colorimetric analyzer for explosives and drugs;
fig. 2 is a schematic diagram of the internal structure of the hand-held colorimetric analyzer for explosives and drugs.
Detailed Description
Example 1
The invention relates to a detection method of a hand-held colorimetric analyzer for explosives and drugs, which comprises a drive board 10, a mainboard 8, a sampling module 16, an image acquisition module 18, an identity card module 6, a thermal printer module 7, a buzzer alarm module 12, an LED indicator light 11, a low-temperature polymer lithium battery 5, a display module 9 and a power switch 17, wherein the drive board 10 is used for detection of a microswitch 13, control of a light supplementing lamp board 3, drive of an industrial camera 1, drive of the identity card module 6, control of the LED indicator light 11 and communication of the thermal printer module 7, the microswitch 13 is connected with the drive board 10 through an I/O port, the light supplementing lamp board 3 is connected with the drive board 10 through a charging port, the industrial camera 1 is connected with the drive board 10 through a DVP port, the identity card module 6 is connected with the drive board 10 through a TTL port, the thermal printer module 7 is connected with the driving board 10 through an RS232 serial port, and the LED indicating lamp 11 is positioned on the driving board 10; the sampling module 16 consists of a test card insertion port 15 and an array type test card 14; the test card insertion port 15 is internally provided with a microswitch 13 and an inclined plane formed by sequentially arranging 4 shafts with different diameters; one side of a driving board 10 is connected with a main board 8 through a TYPE C interface, an image acquisition module 18 is arranged at the lower end of an analyzer, an optical system consisting of an industrial camera 1, an annular light supplement lamp panel 3, a light homogenizing plate 4 and a quartz glass plate 2 is arranged in the image acquisition module 18, the number of pixels of the industrial camera 1 is more than 500 thousands, and the array TYPE test card 14 is divided into 12 mutually non-interfering areas by adopting a screen printing technology and is packaged; the specific operation is carried out according to the following steps:
a. pressing the power switch 173 s for a long time to wait for the start of the hand-held colorimetric analyzers for explosives and drugs;
b. opening the array type test card packaging box, taking out the array type test card 14, inserting the array type test card 14 with trace urea powder wiped into a test card insertion port 15 in a handheld explosive and drug colorimetric analyzer, triggering a microswitch 13, clicking a detection start icon of a display module 9 for about 8s, and leading an LED indicator lamp 11 to flicker in red light and alarm along with a buzzer alarm module 12 to alarm;
c. the display module 9 displays the detected dangerous explosive and abnormal conditions, the urea and derivatives of the dangerous explosive are found, meanwhile, the information of the detected personnel can be collected into the mainboard 8 through the identity card module 6, the mainboard 8 is used for receiving picture data uploaded by the driving board 10, identifying images, acquiring GPS data, driving a buzzer alarm module, storing historical data, detecting system state information, controlling network port uploading data, controlling interface display, extracting and feeding back touch operation information;
d. the detection information is printed on site by the thermal printer 7, the detection information including: detection of Urea and its derivatives! Identity card information, contact ways, specific places, longitude and latitude, and detection data can be uploaded to a corresponding background server through a network port of the mainboard 8 in real time, and the fact that the object to be detected contains urea is proved.
Example 2
The invention relates to a detection method of a hand-held colorimetric analyzer for explosives and drugs, which is carried out according to an embodiment 1, and the specific operation is carried out according to the following steps:
a. pressing the power switch 173 s for a long time to wait for the start of the hand-held colorimetric analyzers for explosives and drugs;
b. opening the array type test card packing box, taking out the array type test card 14, wiping the array type test card 14 to insert a trace sample mixed with ammonium nitrate fuel oil powder into a test card insertion port 15 in the hand-held explosive and drug colorimetric analyzer, triggering a micro switch 13, clicking a detection starting icon of a display module 9 for about 8s, and leading an LED indicator lamp 11 to flicker in red light and alarm along with a buzzer alarm module 12 to alarm;
c. the display module 9 of the display is used for displaying that dangerous explosive and abnormal conditions are detected, suspected antai explosive of the dangerous explosive is found, meanwhile, the information of the detected personnel can be collected into the mainboard 8 through the identity card module 6, and the mainboard 8 is used for receiving picture data uploaded by the driving board 10, identifying images, acquiring GPS data, driving a buzzer alarm module, storing historical data, detecting system state information, controlling data uploaded by a network port, displaying a control interface, and extracting and feeding back touch operation information;
d. the detection information is printed on site by the thermal printer 7, the detection information including: the suspected ammonium nitrate fuel oil explosive is detected! Identity card information, contact ways, specific places and longitude and latitude, detection data can be uploaded to a corresponding background server in real time through a network port of the mainboard 8, and the fact that the ammonium nitrate-fuel-oil separator explosive is contained in the object to be detected is proved.
Example 3
The invention relates to a detection method of a hand-held colorimetric analyzer for explosives and drugs, which is carried out according to an embodiment 1, and the specific operation is carried out according to the following steps:
a. pressing the power switch 173 s for a long time to wait for the start of the hand-held colorimetric analyzers for explosives and drugs;
b. opening the array type test card packing box, taking out the array type test card 14, wiping the array type test card 14 to wipe trace samples mixed with cocaine powder, inserting the trace samples into a test card insertion port 15 in a handheld explosive and drug colorimetric analyzer, triggering a micro switch 13, clicking a detection starting icon of a display module 9 for about 8s, and leading an LED indicator lamp 11 to flicker in red light and to alarm along with a buzzer alarm module 12;
c. the display module 9 of the display is used for displaying and detecting dangerous and explosive articles and abnormal conditions, cocaine drugs are found, meanwhile, the information of detected personnel can be collected into the mainboard 8 through the identity card module 6, and the mainboard 8 is used for receiving picture data uploaded by the driving board 10, identifying images, acquiring GPS data, driving the alarm module to sound, storing historical data, detecting system state information, controlling network port uploading data, controlling interface display, and extracting and feeding back touch operation information;
d. and can print detection information on site by the thermal printer 7, the detection information including: detection of cocaine! Identity card information, contact ways, specific places and longitude and latitude, detection data can be uploaded to a corresponding background server in real time through a network port of the mainboard 8, and cocaine is proved to be contained in the object to be detected.
The above description is only exemplary and not intended to limit the technical scope of the present invention, and any modification, equivalent replacement, and improvement made within the spirit and principle of the present invention should be included in the protection scope.
Claims (1)
1. A detection method of a hand-held colorimetric analyzer for explosives and drugs is characterized in that the analyzer related to the method consists of a drive board (10), a mainboard (8), a sampling module (16), an image acquisition module (18), an identity card module (6), a thermal printer module (7), a buzzer alarm module (12), an LED indicator lamp (11), a low-temperature polymer lithium battery (5), a display module (9) and a power switch (17), wherein the drive board (10) is used for detection of a microswitch (13), control of a light supplement lamp board (3), drive of an industrial camera (1), drive of the identity card module (6), control of the LED indicator lamp (11) and communication of the thermal printer module (7), the microswitch (13) is connected with the drive board (10) through an I/O interface, the light supplement lamp board (3) is connected with the drive board (10) through a charging interface, the industrial camera (1) is connected with the driving board (10) through a DVP interface, the identity card module (6) is connected with the driving board (10) through a TTL serial port, the thermal printer module (7) is connected with the driving board (10) through an RS232 serial port, and the LED indicating lamp (11) is located on the driving board (10); the sampling module (16) consists of a test card insertion port (15) and an array type test card (14); a microswitch (13) and an inclined plane formed by sequentially arranging 4 shafts with different diameters are arranged in the test card insertion port (15); one side of a driving board (10) is connected with a main board (8) through a TYPE C interface, an image acquisition module (18) is arranged at the lower end of an analyzer, an optical system consisting of an industrial camera (1), an annular light supplement lamp board (3), a light homogenizing board (4) and a quartz glass board (2) is arranged in the image acquisition module (18), the number of pixels of the industrial camera (1) is more than 500 thousands, and the array TYPE test card (14) is divided into 12 areas which are not interfered with each other by adopting a screen printing technology and is packaged; the specific operation is carried out according to the following steps:
a. pressing a power switch (17) for 3s for a long time, and waiting for the start of the hand-held explosive and drug colorimetric analyzer;
b. after an array type test card (14) is used for collecting an object to be detected, the array type test card (14) is inserted into a test card insertion port (15) in a handheld explosive and drug colorimetric analyzer, a microswitch (13) is triggered, a detection starting icon of a display module (9) is clicked, and a specific detection result can be obtained in about 8 seconds;
c. the method comprises the steps that a detection result is displayed through a display module (9), if red light of an LED indicator lamp (11) for detecting suspicious objects flickers and sounds with a buzzer alarm module (12) for alarming, if the LED indicator lamp (11) for detecting suspicious objects does not keep green light long and bright and has no buzzer signal, information of detected personnel can be collected into a main board (8) through an identity card module (6), and the main board (8) is used for receiving picture data uploaded by a driving board (10), identifying images, acquiring GPS data, driving the buzzer alarm module, storing historical data, detecting system state information, controlling uploading data of a network port, displaying a control interface and extracting and feeding back touch operation information;
d. printing, by a thermal printer module (7), detection information on site, the detection information including: identity card information, contact ways, specific places, longitude and latitude and detection results, and detection data can be uploaded to the corresponding background server in real time through a network port of the mainboard (8).
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| Publication number | Priority date | Publication date | Assignee | Title |
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