CN111830037A - Police trace detection system and equipment - Google Patents
Police trace detection system and equipment Download PDFInfo
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- CN111830037A CN111830037A CN202010650825.3A CN202010650825A CN111830037A CN 111830037 A CN111830037 A CN 111830037A CN 202010650825 A CN202010650825 A CN 202010650825A CN 111830037 A CN111830037 A CN 111830037A
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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
- G01N21/01—Arrangements or apparatus for facilitating the optical investigation
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B15/00—Optical objectives with means for varying the magnification
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06V—IMAGE OR VIDEO RECOGNITION OR UNDERSTANDING
- G06V40/00—Recognition of biometric, human-related or animal-related patterns in image or video data
- G06V40/10—Human or animal bodies, e.g. vehicle occupants or pedestrians; Body parts, e.g. hands
- G06V40/12—Fingerprints or palmprints
- G06V40/13—Sensors therefor
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Abstract
The invention relates to the technical field of detectors, in particular to a police trace detection system and equipment. The police trace detection system comprises a fixing device, a moving device, a detection device, a display device and a sliding device, wherein equipment to be detected is placed on the fixing device, the moving device is installed on the fixing device, the detection device is installed on the moving device, the detection device comprises a camera, the camera is installed on the moving device, and the display device is in communication connection with the camera. The moving device can move up and down on the fixing device, so that the distance between the camera and the equipment to be detected is adjusted, and the mobile device is small in size and convenient to carry.
Description
Technical Field
The invention relates to the technical field of detectors, in particular to a police trace detection system and equipment.
Background
The trace detection instrument is a special branch in instrumentation and instrumentation, and plays an extremely important leading role in the field of material evidence identification, and the trace detection instrument is required to have extremely high reliability due to the particularity of application occasions. In judicial identification, the process of obtaining and acquiring material evidence, whether in the English-American and continental act, requires that the material evidence must be reviewed, that the material evidence identification personnel, equipment and procedures must be able to withstand the examinations, and that the identification results produced by judicial identification equipment must be able to demonstrate in court and withstand the quality of the evidence.
Among the prior art, in the hand-foot worker's gun mark inspection field in the criminal investigation field, the vestige detecting instrument that relates is numerous, like stereomicroscope, material evidence appearance, fingerprint collection appearance, foot trace appearance, bullet groove appearance at the bottom of the bullet, super depth of field observation appearance etc. all kinds of instrument function singleness, the volume is great, and it is inconvenient to remove, and detection personnel intensity of labour is big, therefore urgent need improve.
Disclosure of Invention
In view of the above disadvantages of the prior art, an object of the present invention is to provide a system and a device for detecting police marks, which are used to solve the problems of single function, large volume, inconvenient movement and high labor intensity of the detecting personnel in the prior art.
To achieve the above and other related objects, the present invention provides a police mark detection system, including:
the fixing device is provided with a device to be detected;
a moving device mounted on the fixing device;
a detection device mounted on the mobile device, wherein,
the detection device comprises a camera, and the camera is mounted on the mobile device;
a display device in communication connection with the camera; and
and the police trace detection system is arranged on the sliding device.
In an embodiment of the present invention, the fixing device includes:
the fixed upright post is provided with the moving device;
the base is fixed with on it the stationary mast, just it waits to examine equipment to place on the base.
In an embodiment of the present invention, the mobile device includes:
the movable upright post is movably arranged on the fixed upright post, a control device is arranged on the movable upright post, and the control device is in communication connection with the camera;
the supporting column is fixed on the moving upright column;
and the rotating nut is arranged on the moving upright post and is used for connecting the moving upright post with the supporting post.
In an embodiment of the present invention, the detecting device further includes:
a zoom objective lens mounted on the top of the camera;
a steering prism mounted at the bottom of the camera;
the integrating sphere is connected with the steering prism;
the cylindrical unfolding device is arranged on the base, and the top of the cylindrical unfolding device is connected with the bottom of the integrating sphere; and
a cylinder mounted on the cylinder deployment device.
In an embodiment of the present invention, a heat dissipation fan is installed on the moving column.
In an embodiment of the present invention, the control device includes:
the signal output end of the controller is connected with the signal input end of the camera;
the signal input end of the touch screen is connected with the signal output end of the controller;
the signal input end of the wireless signal transmitter is connected with the signal output end of the controller;
and the signal output end of the power supply module is connected with the signal input ends of the controller and the camera.
In an embodiment of the present invention, the control device further includes:
a memory in bi-directional communication with the controller.
In an embodiment of the present invention, the wireless signal transmitter is communicatively connected to the wireless signal receiver, and the wireless signal receiver is communicatively connected to the display screen.
In an embodiment of the invention, the power supply module includes a switching power supply, one power input terminal of the switching power supply is connected to one input terminal of the intermediate relay, the other power input terminal of the switching power supply and the other input terminal of the intermediate relay are both connected to a storage battery, a positive output terminal of the intermediate relay is respectively connected to one end of a first resistor R1 and a collector of a first triode Q1, the other end of the first resistor R1 is connected to a power supply, a base of the first triode Q1 is connected to one end of a second resistor R2, the other end of the second resistor R2 is used as a power supply output terminal of the power supply module, an emitter of the first triode Q1 is connected to a negative output terminal of the intermediate relay and is grounded, a positive output terminal of the switching power supply is respectively connected to one end of a fifth capacitor C5, an input terminal of the first voltage stabilizing chip and the, the negative electrode output end of the switching power supply is respectively connected with the other end of the fifth capacitor C5, one end of the sixth capacitor C6, one end of the seventh capacitor C7, one end of the eighth capacitor C8, one end of the fourth capacitor C4, the grounding end of the first voltage stabilizing chip and the grounding end of the second voltage stabilizing chip, and is grounded, the output end of the first voltage stabilizing chip is respectively connected with the other end of the sixth capacitor C6, the other end of the seventh capacitor C7, the input end of the second voltage stabilizing chip and a +5V power supply, and the output end of the second voltage stabilizing chip is respectively connected with the other end of the eighth capacitor C8, the other end of the fourth capacitor C4 and a +3.3V power supply.
The present invention also provides a police-use trace detection apparatus, comprising:
police trace detection system, police trace detection system includes:
the fixing device is provided with a device to be detected;
a moving device mounted on the fixing device;
a detection device mounted on the mobile device, wherein,
the detection device comprises a camera, and the camera is mounted on the mobile device;
a display device in communication connection with the camera;
the police trace detection system is arranged on the sliding device;
the sliding device includes:
the motor is in communication connection with the display device;
the sliding rail is arranged on two sides of the base, and the base is used for sliding on the sliding rail.
As described above, the police mark detection system and the police mark detection device of the invention have the following beneficial effects:
the police trace detection system comprises a fixing device, a moving device, a detection device, a display device and a sliding device, wherein the moving device can move up and down on the fixing device so as to adjust the distance between a camera and equipment to be detected, and the police trace detection system is small in size and convenient to carry.
The invention can amplify the image of the equipment to be detected through the zoom objective lens and the steering prism, and can automatically acquire and display the image, thereby greatly reducing the labor intensity of detection personnel and improving the detection efficiency.
The police trace detection equipment can conveniently move the base, can automatically adjust the position of the base, and is convenient for observing equipment to be detected.
Drawings
Fig. 1 is a schematic structural diagram of a police mark detection system according to an embodiment of the present application.
Fig. 2 is a block diagram of a control device of a police tracing detection system according to an embodiment of the present application.
Fig. 3 is a block diagram of a wireless signal receiver and a display screen of a police tracing detection system according to an embodiment of the present application.
Fig. 4 is a schematic circuit diagram of a controller of a police tracing detection system according to an embodiment of the present application.
Fig. 5 is a schematic circuit diagram of a power supply module of a police tracing detection system according to an embodiment of the present application.
Description of the element reference numerals
1-base 2-fixed column
3-camera 4-zoom objective lens
5-steering prism 6-integrating sphere
7-cylinder 8-cylinder unfolding device
9-computer 10-control device
11-radiator fan 12-support column
13-rotating nut 14-moving upright post
15-wireless signal receiver 16-display screen
17-motor 18-sliding rail
101-controller 102-touch screen
103-memory 104-wireless signal transmitter
105-power supply module
Detailed Description
The embodiments of the present invention are described below with reference to specific embodiments, and other advantages and effects of the present invention will be easily understood by those skilled in the art from the disclosure of the present specification. The invention is capable of other and different embodiments and of being practiced or of being carried out in various ways, and its several details are capable of modification in various respects, all without departing from the spirit and scope of the present invention. It is to be noted that the features in the following embodiments and examples may be combined with each other without conflict.
It should be noted that the drawings provided in the following embodiments are only for illustrating the basic idea of the present invention, and the components related to the present invention are only shown in the drawings rather than drawn according to the number, shape and size of the components in actual implementation, and the type, quantity and proportion of the components in actual implementation may be changed freely, and the layout of the components may be more complicated.
Referring to fig. 1, fig. 1 is a schematic structural diagram of a police mark detection system according to an embodiment of the present application. The invention provides a police trace detection system, which can be applied to the acquisition and comparison identification of the traces of material evidence in various criminal and civil cases, such as fingerprint acquisition and identification; cutting, scratching, bullet shell mark, prying and pressing line-shaped marks and the like by a tool; various iron wires and copper wires are integrally separated; and (5) footprint inspection. Police trace detecting system includes but not limited to fixing device, mobile device, detection device, display device and slider, equipment of awaiting measuring has been placed on the fixing device, mobile device install in on the fixing device, detection device install in on the mobile device, detection device includes camera 3, camera 3 install in on the mobile device, display device with communication connection between the camera 3, it is concrete, display device can be computer 9, computer 9 can show the clear image of equipment of awaiting measuring, can also send control signal to the input of controller 101, police trace detecting system install in on the slider.
As shown in fig. 1, the fixing device includes but is not limited to a fixing column 2 and a base 1, the moving device is installed on the fixing column 2, the base 1 is fixed with the fixing column 2, and the device to be detected is placed on the base 1. The moving means include, but are not limited to, a moving column 14, a support column 12, and a swivel nut 13. The movable upright post 14 is movably mounted on the fixed upright post 2, the movable upright post 14 is provided with a control device 10, the control device 10 is in communication connection with the camera 3, the supporting post 12 is fixed on the movable upright post 14, and the rotating nut 13 is mounted on the movable upright post 14 and is used for connecting the movable upright post 14 with the supporting post 12. Specifically, the base 1 can be placed on a desktop or a flat ground, a rail can be arranged on the fixed upright post 2, a pulley can be installed on the movable upright post 14, and the pulley is installed in the rail and used for enabling the movable upright post 14 to vertically move on the fixed upright post 2. The supporting column 12 is used for supporting the detection device, and the rotating nut 13 is used for locking the fixed upright column 2 and the movable upright column 14.
As shown in fig. 1, the detection device further includes a variable power objective lens 4, a steering prism 5, an integrating sphere 6, a cylindrical expansion device 8, and a cylinder 7. The zoom objective lens 4 is installed at the top of the camera 3, the steering prism 5 is installed at the bottom of the camera 3, the integrating sphere 6 is connected with the steering prism 5, the cylinder unfolding device 8 is installed on the base 1, the top of the cylinder unfolding device 8 is connected with the bottom of the integrating sphere 6, and the cylinder 7 is installed on the cylinder unfolding device 8. Specifically, the camera 3 may be but not limited to a CCD camera, the zoom range of the variable power objective 4 may be but not limited to 15mm to 150mm, the variable power objective 4 may be a continuous variable power objective, the integrating sphere 6 is a hollow sphere with an inner wall coated with a white diffuse reflection material, and one or more window holes are formed on the wall of the sphere to serve as a light inlet hole and a receiving hole for placing a light receiving device. And a heat radiation fan 11 is installed on the movable upright post 14, and the heat radiation fan 11 is used for radiating the police trace detection system.
Referring to fig. 2, fig. 3 and fig. 4, fig. 2 is a block diagram of a control device of a police mark detection system according to an embodiment of the present application. Fig. 3 is a block diagram of a wireless signal receiver and a display screen of a police tracing detection system according to an embodiment of the present application. Fig. 4 is a schematic circuit diagram of a controller of a police tracing detection system according to an embodiment of the present application. The control device 10 includes, but is not limited to, a controller 101, a touch screen 102, a memory 103, a wireless signal transmitter 104, and a power supply module 105. The signal output end of the controller 101 is connected with the signal input end of the camera 3, the signal input end of the touch screen 102 is connected with the signal output end of the controller 101, the signal input end of the wireless signal transmitter 104 is connected with the signal output end of the controller 101, the signal output end of the power supply module 105 is connected with the signal input ends of the controller 101 and the camera 3, and the memory 103 is in bidirectional communication connection with the controller 101. Specifically, the memory 103 may be, but is not limited to, a Flash memory. The wireless signal transmitter 104 is in communication connection with the wireless signal receiver 15, and the wireless signal receiver 15 is in communication connection with the display screen 16. Specifically, the chip model of the controller 101 is an STM series chip, and specifically, the model of the wireless signal transmitter 104 and the wireless signal receiver 15 may be an industrial station of FGR2 series.
Referring to fig. 5, fig. 5 is a schematic circuit diagram of a power supply module of a police tracing detection system according to an embodiment of the present application. Power module 105 includes switching power supply, switching power supply's a power input end with an input of auxiliary relay links to each other, and the battery is all connected to another power input of switching power supply and another input of auxiliary relay, first resistance R1's one end, first triode Q1's collecting electrode are connected respectively to auxiliary relay's positive output, the power is connected to first resistance R1's the other end, the one end of second resistance R2 is connected to first triode Q1's base, the other end of second resistance R2 is as power module 105's power supply output end, the negative pole output and the ground connection of auxiliary relay are connected to first triode Q1's projecting pole, fifth electric capacity C5's one end, the input and the power of first steady voltage chip are connected respectively to switching power supply's positive output, and fifth electric capacity C5's the other end is connected respectively to switching power supply's negative pole output, One end of a sixth capacitor C6, one end of a seventh capacitor C7, one end of an eighth capacitor C8, one end of a fourth capacitor C4, a ground end of a first voltage stabilizing chip and a ground end of a second voltage stabilizing chip are grounded, an output end of the first voltage stabilizing chip is respectively connected with the other end of the sixth capacitor C6, the other end of the seventh capacitor C7, an input end of the second voltage stabilizing chip and a +5V power supply, and an output end of the second voltage stabilizing chip is respectively connected with the other end of an eighth capacitor C8, the other end of the fourth capacitor C4 and a +3.3V power supply. The storage battery outputs DC12V after passing through the switching power supply, then passes through voltage stabilization chip LM1117 and presses 5V and 3.3V out respectively steadily, establishes ties an auxiliary relay on total power supply circuit, and the auxiliary relay is controlled by STM series chip, and the storage battery passes through P1 port and introduces, and the auxiliary relay is in the normally closed state, and AC end UNICOM produces 12V direct current through S1, and the back steady voltage goes out 5V, 3.3V. The state of the S2 is controlled by the control chip through a switch circuit composed of a first triode Q1, when the power supply module is in normal use, the first triode Q1 is conducted, the S2 is always in a normally closed state, when a signal is generated at the power supply output end of the power supply module 105, the triode is turned off, the S2 is powered on and is in a normally open state, and the AC end is disconnected.
As shown in fig. 1, the present invention also provides a police mark detection device, which has a principle similar to that of a police mark detection system of the present invention, wherein the police mark detection device comprises the above police mark detection system, the sliding device comprises a motor 17 and a sliding rail 18, the motor 17 is in communication connection with the display device, the sliding rail 18 is installed on two sides of a base, and the base is used for sliding on the sliding rail 18.
As shown in fig. 1, in order to make the technical solution of the present invention more clear, the following describes the working process of the present invention through a specific embodiment, when the police mark detection system works, the device to be detected is placed on a base 1, the device to be detected is zoom-amplified through a turning prism 5 and a zoom objective 4, the controller 101 controls the camera 3 to collect an image after zoom-amplification and send the image to the controller 101, the controller 101 is used for processing the image, including amplification processing and the like, and sending the processed image to the computer 9, and the processed image can be placed in the memory 103 for storage. The controller 101 may further send the processed image to the wireless signal transmitter 104, the wireless signal transmitter 104 sends the processed image to the wireless signal receiver 15, the processed image is displayed by the display screen 16, the processed image can be remotely and wirelessly sent to a user, and the wireless signal receiver 15 and the display screen 16 may be deployed at a user end.
In summary, the invention includes a fixing device, a moving device, a detecting device and a display device, wherein the device to be detected is placed on the fixing device, the moving device is installed on the fixing device, the detecting device is installed on the moving device, the detecting device includes a camera 3, the camera 3 is installed on the moving device, and the display device is in communication connection with the camera 3. The moving device can move up and down on the fixing device, so that the distance between the camera and the equipment to be detected is adjusted, and the mobile device is small in size and convenient to carry.
The foregoing embodiments are merely illustrative of the principles and utilities of the present invention and are not intended to limit the invention. Any person skilled in the art can modify or change the above-mentioned embodiments without departing from the spirit and scope of the present invention. Accordingly, it is intended that all equivalent modifications or changes which can be made by those skilled in the art without departing from the spirit and technical spirit of the present invention be covered by the claims of the present invention.
Claims (10)
1. A police footprint detection system, comprising:
the fixing device is provided with a device to be detected;
a moving device mounted on the fixing device;
a detection device mounted on the mobile device, wherein,
the detection device comprises a camera, and the camera is mounted on the mobile device;
a display device in communication connection with the camera; and
and the police trace detection system is arranged on the sliding device.
2. A police footprint detection system as claimed in claim 1, wherein said fixing means comprises:
the fixed upright post is provided with the moving device;
the base is fixed with on it the stationary mast, just it waits to examine equipment to place on the base.
3. A police footprint detection system as claimed in claim 2, wherein said moving means comprises:
the movable upright post is movably arranged on the fixed upright post, a control device is arranged on the movable upright post, and the control device is in communication connection with the camera;
the supporting column is fixed on the moving upright column;
and the rotating nut is arranged on the moving upright post and is used for connecting the moving upright post with the supporting post.
4. A police footprint detection system as claimed in claim 3, wherein said detection means further comprises:
a zoom objective lens mounted on the top of the camera;
a steering prism mounted at the bottom of the camera;
the integrating sphere is connected with the steering prism;
the cylindrical unfolding device is arranged on the base, and the top of the cylindrical unfolding device is connected with the bottom of the integrating sphere; and
a cylinder mounted on the cylinder deployment device.
5. A police footprint detection system according to claim 3, characterised in that: and a heat radiation fan is arranged on the movable upright post.
6. A police footprint detection system as claimed in claim 3, wherein said control means comprises:
the signal output end of the controller is connected with the signal input end of the camera;
the signal input end of the touch screen is connected with the signal output end of the controller;
the signal input end of the wireless signal transmitter is connected with the signal output end of the controller;
and the signal output end of the power supply module is connected with the signal input ends of the controller and the camera.
7. A police footprint detection system as claimed in claim 6, wherein said control means further comprises:
a memory in bi-directional communication with the controller.
8. A police mark detection system as claimed in claim 6 or 7 wherein the wireless signal transmitter is communicatively coupled to a wireless signal receiver, the wireless signal receiver being communicatively coupled to the display screen.
9. A police footprint detection system according to claim 6, characterised in that: the power supply module comprises a switch power supply, a power input end of the switch power supply is connected with an input end of the intermediate relay, a storage battery is connected with another power input end of the switch power supply and another input end of the intermediate relay, one end of a first resistor R1 and a collector electrode of a first triode Q1 are respectively connected with an anode output end of the intermediate relay, the other end of the first resistor R1 is connected with the power supply, one end of a second resistor R2 is connected with a base electrode of a first triode Q1, the other end of the second resistor R2 is used as a power supply output end of the power supply module, a cathode output end of the first triode Q1 is connected with the cathode output end of the intermediate relay and grounded, one end of a fifth capacitor C5, an input end of a first voltage stabilizing chip and the power supply are respectively connected with the anode output end of the switch power supply, and the other end of the fifth capacitor C5 is respectively, One end of a sixth capacitor C6, one end of a seventh capacitor C7, one end of an eighth capacitor C8, one end of a fourth capacitor C4, a ground end of a first voltage stabilizing chip and a ground end of a second voltage stabilizing chip are grounded, an output end of the first voltage stabilizing chip is respectively connected with the other end of the sixth capacitor C6, the other end of the seventh capacitor C7, an input end of the second voltage stabilizing chip and a +5V power supply, and an output end of the second voltage stabilizing chip is respectively connected with the other end of an eighth capacitor C8, the other end of the fourth capacitor C4 and a +3.3V power supply.
10. A police mark detection apparatus characterized by comprising:
police trace detection system, police trace detection system includes:
the fixing device is provided with a device to be detected;
a moving device mounted on the fixing device;
a detection device mounted on the mobile device, wherein,
the detection device comprises a camera, and the camera is mounted on the mobile device;
a display device in communication connection with the camera;
the police trace detection system is arranged on the sliding device;
the sliding device includes:
the motor is in communication connection with the display device;
the sliding rail is arranged on two sides of the base, and the base is used for sliding on the sliding rail.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010650825.3A CN111830037A (en) | 2020-07-08 | 2020-07-08 | Police trace detection system and equipment |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202010650825.3A CN111830037A (en) | 2020-07-08 | 2020-07-08 | Police trace detection system and equipment |
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| CN111830037A true CN111830037A (en) | 2020-10-27 |
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| CN202010650825.3A Pending CN111830037A (en) | 2020-07-08 | 2020-07-08 | Police trace detection system and equipment |
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Citations (5)
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| JPH109841A (en) * | 1996-06-26 | 1998-01-16 | Nissan Motor Co Ltd | Surface flaw inspection apparatus |
| CN206192913U (en) * | 2016-11-11 | 2017-05-24 | 昆山百希奥电子科技有限公司 | Movement detection platform |
| CN107397994A (en) * | 2017-07-21 | 2017-11-28 | 芜湖拓达电子科技有限公司 | A kind of infusion electronic monitoring system |
| CN108107560A (en) * | 2018-01-23 | 2018-06-01 | 芜湖市奥尔特光电科技有限公司 | A kind of verification of traces comprehensive instrument |
| CN110849962A (en) * | 2019-10-11 | 2020-02-28 | 大唐水电科学技术研究院有限公司 | Device and method for evaluating trend and depth of metal crack by utilizing electromagnetic ultrasonic principle |
-
2020
- 2020-07-08 CN CN202010650825.3A patent/CN111830037A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH109841A (en) * | 1996-06-26 | 1998-01-16 | Nissan Motor Co Ltd | Surface flaw inspection apparatus |
| CN206192913U (en) * | 2016-11-11 | 2017-05-24 | 昆山百希奥电子科技有限公司 | Movement detection platform |
| CN107397994A (en) * | 2017-07-21 | 2017-11-28 | 芜湖拓达电子科技有限公司 | A kind of infusion electronic monitoring system |
| CN108107560A (en) * | 2018-01-23 | 2018-06-01 | 芜湖市奥尔特光电科技有限公司 | A kind of verification of traces comprehensive instrument |
| CN110849962A (en) * | 2019-10-11 | 2020-02-28 | 大唐水电科学技术研究院有限公司 | Device and method for evaluating trend and depth of metal crack by utilizing electromagnetic ultrasonic principle |
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Application publication date: 20201027 |
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