CN107422582B - Projector device for improving recognition efficiency in judicial evidence system - Google Patents
Projector device for improving recognition efficiency in judicial evidence system Download PDFInfo
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- CN107422582B CN107422582B CN201710434961.7A CN201710434961A CN107422582B CN 107422582 B CN107422582 B CN 107422582B CN 201710434961 A CN201710434961 A CN 201710434961A CN 107422582 B CN107422582 B CN 107422582B
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- 239000000463 material Substances 0.000 claims abstract description 30
- 238000004891 communication Methods 0.000 claims description 3
- 230000000694 effects Effects 0.000 claims description 3
- 230000009286 beneficial effect Effects 0.000 abstract description 4
- 238000011835 investigation Methods 0.000 abstract description 4
- 235000019504 cigarettes Nutrition 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000003287 optical effect Effects 0.000 description 2
- 238000003326 Quality management system Methods 0.000 description 1
- 230000001010 compromised effect Effects 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 238000002372 labelling Methods 0.000 description 1
- 239000011159 matrix material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
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- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
- G03B21/00—Projectors or projection-type viewers; Accessories therefor
- G03B21/005—Projectors using an electronic spatial light modulator but not peculiar thereto
- G03B21/006—Projectors using an electronic spatial light modulator but not peculiar thereto using LCD's
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- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
- G03B21/00—Projectors or projection-type viewers; Accessories therefor
- G03B21/14—Details
-
- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
- G03B21/00—Projectors or projection-type viewers; Accessories therefor
- G03B21/14—Details
- G03B21/142—Adjusting of projection optics
Abstract
The invention provides a projector device for improving recognition efficiency in a judicial evidence system, and belongs to the field of judicial evidence marking. The invention comprises a shell, a main control module, a display module, a projection module, a power supply module, a power switch, a setting key and a light outlet, wherein the main control module, the display module, the projection module, the power supply module, the power switch, the setting key and the light outlet are arranged in the shell, the main control module is respectively connected with the display module, the projection module, the power supply module and the setting key, the power switch is connected with the power supply module, and the main control module can project the content displayed by the display module from the light outlet through the projection module. The beneficial effects of the invention are as follows: the structure is simple, convenient and practical; when investigation and evidence collection are performed, unique identification codes can be projected to each material evidence and are associated with the evidence, so that information acquisition, material evidence tracing, field analysis in big data age, case serial-parallel connection and the like are facilitated.
Description
Technical Field
The invention relates to the field of judicial evidence marking, in particular to a projector device for improving recognition efficiency in a judicial evidence system.
Background
Various material evidence can be extracted in the field investigation, and shooting, fixing and labeling of Chinese character names for each material evidence is the basic work of judicial evidence. The common practice is to use the plastic signboard which is already made to be placed around the material evidence for photographing, even without any sign, but only for photographing the material evidence in detail. This results in insufficient recognition when handling large numbers of fine-detail photos, which is prone to confusion; when describing the material evidence, only characters can be used for representing the extraction part, the characteristics and the like, so that the material evidence is not concise and easy to repeat; when the signboard is placed, the site is destroyed, and secondary interference is easily caused. These problems are particularly pronounced in the big data age, and even to some extent, the field investigation mechanism is compromised.
The field material evidence is not provided with a unique identification number when being found, and then is respectively numbered when entering a laboratory, such as the same cigarette end material evidence, is a number in a DNA database, in the fingerprint automatic identification and retrieval system, a different number is used, in the authentication quality management system, another number is used, and the like. The same physical evidence is not associated among links, and redundant complex characteristics exist in expression, so that high-efficiency association cannot be established between links, and the information is an information isolated point. The multiple expression modes of the material evidence in each system bring difficulties to the work of information acquisition, material evidence tracing, on-site analysis of serial-parallel connection and the like.
From crime scene to court, the physical evidence carries many information such as personnel, time, place, etc. The association between the physical evidence is increasingly responsible, and the continuous use of the current text description field physical evidence mode can cause low information use efficiency, and only the unique identity characteristic is marked for the field physical evidence to be the node for solving the problem.
Disclosure of Invention
In order to solve the problems in the prior art, the invention provides a projector device for improving the recognition efficiency in a judicial evidence system, which automatically and conveniently marks a unique digital identifier for a field material evidence and improves the management efficiency of the material evidence.
The invention comprises a shell, a main control module, a display module, a projection module, a power supply module, a power switch, a setting key and a light outlet, wherein the main control module, the display module, the projection module, the power supply module, the power switch, the setting key and the light outlet are arranged in the shell, the main control module is respectively connected with the display module, the projection module, the power supply module and the setting key, the power switch is connected with the power supply module, and the main control module can project the content displayed by the display module from the light outlet through the projection module.
The invention further improves, the main control module comprises a processor, and a projection control unit, a display control unit, a clock unit and a preset unit which are respectively connected with the processor.
The invention is further improved, the shell is also provided with a positioning key, the main control module further comprises a positioning unit connected with the processor, and the positioning key is connected with the positioning unit.
The invention is further improved, and the positioning key and the setting key are buried keys which are not higher than the surface of the shell.
The invention is further improved, and the main control module also comprises a wireless communication unit which is communicated with other equipment.
According to the invention, the display module is an LCD light-transmitting plate, and the LCD light-transmitting plate is fixed inside the projector device through a bracket.
The invention further improves, the projection module comprises a light source, a first convex lens, a second convex lens, a third convex lens and a fourth convex lens which are coaxially arranged, wherein the light source, the first convex lens, the second convex lens and the third convex lens are sequentially arranged on one side of the LCD light-transmitting plate, the third convex lens is reversely arranged at one end close to the LCD light-transmitting plate, and the fourth convex lens is arranged at a light outlet hole on the other side of the LCD light-transmitting plate.
According to the invention, the LCD light-transmitting plate displays in a single line or two lines, and the light-emitting holes are flat-mouth light-emitting holes or square light-emitting holes.
The invention is further improved, the whole shell is pen-shaped, the shell is provided with a front end and a rear end, the fourth convex lens and the light outlet hole are arranged at the front end of the shell, the main control module and the display module are fixed in the rear end of the shell, and the distance between the fourth convex lens and the display module can be adjusted through the joint of the front end and the rear end of the shell.
The invention is further improved, and the projector device is also provided with a fixing device for fixing the projector device.
Compared with the prior art, the invention has the beneficial effects that: the structure is simple, the operation is convenient, and the utility model is very practical; when the evidence is investigated and obtained, the unique identification codes can be projected to each material evidence and are associated with the evidence, and when the evidence is used in the later period, a perfect and effective evidence chain and a legal active set can be formed around the material evidence, so that the method is beneficial to information acquisition, material evidence tracing, field analysis in big data age, case serial-parallel and the like.
Drawings
FIG. 1 is a schematic view of an embodiment of a projector apparatus according to the present invention;
FIG. 2 is a schematic view of a light exit structure;
FIG. 3 is a schematic diagram of a circuit module;
FIG. 4 is a schematic view of a display of an LCD light-transmitting panel in the projector apparatus;
FIG. 5 is a schematic view of another LCD panel in the projector apparatus;
fig. 6 is a diagram of a numerical identifier with an arrow indication.
Description of the embodiments
The invention will be described in further detail with reference to the drawings and examples.
As shown in fig. 1-3, the invention comprises a shell, a main control module 2, a display module, a projection module, a power switch 1, a setting key 4, a positioning key 3 and a light outlet 14, wherein the main control module 2, the projection module, the power module, the setting key 4 and the positioning key 3 are arranged in the shell, the main control module 2 is respectively connected with the display module, the projection module, the power module, the setting key 4 and the positioning key 3, the power switch 1 is connected with the power module, and the main control module can project the content displayed by the display module from the light outlet 14 through the projection module. The display module of this example is an LCD light-transmitting plate 9, and the LCD light-transmitting plate 9 is fixed inside the projector device by a bracket.
The positioning key 3 and the setting key 4 of the embodiment are buried keys not higher than the surface of the shell, and are not easy to press during normal operation, so that misoperation can be effectively avoided.
Due to the case handling during the outgoing, various bad weather and scenes inevitably occur, and in order to prevent the light-emitting hole 14 from burning the internal circuit board due to water entering or the like, or the display module from being affected by dust entering or the like, the outside of the light-emitting hole 14 in this example is also provided with a light-transmitting protection plate 8.
The main control module 2 in this example includes a processor, and a projection control unit, a display control unit, a clock unit, a preset unit, and a positioning unit, which are respectively connected with the processor. The processor can acquire clock data of the clock unit, and send the data set by the preset unit to the display control unit through combination, and the display control unit outputs the data to the LCD light-transmitting plate for display. In addition, the preset data in this example can be obtained by the processor by clicking the positioning key without setting the data through the preset unit, and then converted into the data code. The operation is simpler.
Of course, the main control module 2 may also include a wireless communication unit for communicating with other devices, and by the invention, the main control module communicates with the police command center, so that the command center can timely obtain information such as police position, evidence code, etc.
As shown in fig. 4, as an embodiment of the present invention, the LCD transparent panel 9 of this example displays contents composed of two parts, the first part is a warning unit code, which can be preset by setting a key, and the other part is a time code, which is automatically generated. The specific coding rules of the first part are as follows: the first six digits are the code of the province area, for example, the Shenzhen mountain area in Guangdong province is 440305, the 7 th to 8 th digits 06 are the code of the dispatch of the area, the 9 th to 10 th digits 18 are the team codes, for example, the local dispatch of a plurality of teams to different places, and the two digits can effectively distinguish which team gives the material evidence that the police brings back. The first part can be set in advance before the alarm is given out, so that the alarm is very convenient.
The encoding rule of the second part is: the first six 170523 is year, month and day, which represents 2017, 5, month and 23 days, 7-12 bits 224819 are time-division seconds, which represents 22 hours, 48 minutes and 19 seconds, and the last 6 is hundred milliseconds, and the time of each photographing is different when extracting the material evidence because the time is dynamically changed, and even if the operation is fast, the time-division seconds are the same, but the later hundred milliseconds cannot be the same. Therefore, the serial numbers of all the physical evidence can be ensured to be unique.
In this case, the LCD light-transmitting panel 9 is displayed in two lines, with the first portion being displayed in the first line and the second portion being displayed in the second line for a clearer display. The light exit aperture 14 of this example may be provided as a flat mouth light exit aperture.
As another embodiment of the present invention, as shown in fig. 5, in order to simplify the numbering, shorten the number of words, and make the display clearer, all the operators may be assigned with numbers in this example, and the first part is two digits disposed at the upper right corner of the LCD transparent plate 9, and these two digits represent the numbers of operators. The second part is shown in two rows, the first left six bits 170523 of the first row being a date code, the first six bits 224819 of the second row being a time code, the seventh bit 6 being a hundred millisecond code. Since the number of words is small, the light emitting hole 14 may be formed in a square, oval, or the like.
Of course, the content projected by the projector apparatus of this example may be displayed in one line or may be displayed in two or more lines.
The projection module of this example includes coaxial light source 13, first convex lens 12, second convex lens 11, third convex lens 10 and fourth convex lens 6 that set up, light source 13, first convex lens 12, second convex lens 11 and third convex lens 10 set gradually in one side of LCD light-transmitting plate 9 through first support 5, third convex lens 11 reverse set up in the one end that is close to LCD light-transmitting plate 9, fourth convex lens 6 passes through second lens 7 and sets up in the other side light-emitting hole 14 department of LCD light-transmitting plate 9.
When the processor sends display content to the display control unit, a signal is output to the projection control unit at the same time, the projection control unit controls the light source 13 of the projection module to be turned on, then the light beams of the light source 13 are totally projected onto the LCD light-transmitting plate 9 under the light homogenizing effect of the first convex lens 12 and the second convex lens 11 and then projected out through the light-emitting hole 14, and the light-transmitting place of the LCD light-transmitting plate 9 can enable the light to be projected onto the fourth convex lens 6; the light of the light source 13 is blocked from being projected out where the LCD light-transmitting panel 9 is opaque. The projected content is thus the content displayed by the LCD light-transmitting panel 9.
Projecting the coded content beside the material evidence, photographing together with the material evidence, the physical evidence is uniquely associated with the code component and the unique code is used in each jurisdiction.
As shown in fig. 6, as an embodiment, in the photographing process, a second team police team group on the 6 th month 2 th year 2017 may have multiple physical evidence, such as footprint, cutter and cigarette end in the figure, which physical evidence may not be identified by the code, in order to avoid this situation, four direction keys may be set on the housing, and connected to the main control module 2, where the four direction keys may be displayed in four directions around the code, and in projection, if the physical evidence is on the left side of the code, the left direction key may be pressed, together with the left indication line and the code, and displayed on the LCD transparent plate 9 at the same time.
The projection module of this example also can be the optical display module that sets up in the shell inside, for example the optical display module on the projecting apparatus, and the display module of this example sets up on the shell for preset display use, only need press switch 1, can directly throw out the content that the controller will show. The advantage of this structure is: the display can be performed in a color, and the background and the display color can be changed, for example, when the display is projected on a light-colored object such as a white wall, the display can be set as a black background and a white digital display. If the display is projected on a dark floor, the display can be set to be white background and black digital display, the definition is better, the projection effect is better, the display modes, namely white background and black background and white background, are only set, the mode adjustment is integrated on the power switch 1, and when the power switch 1 is pressed for the first time, the display is in a default format, such as white background and black background; when the power switch 1 is pressed for the second time, the display mode is switched to be black matrix and white character.
The shell of this example can set up to square, cylindric etc., and the preferential whole is long cylindric pen form, and convenient to carry, switch sets up in nib position, and the light-emitting aperture sets up in the nasal tip position, the shell includes interconnect's front end and rear end, fourth convex lens 6 and light-emitting aperture 14 set up the front end of shell, main control module 2 and display module 9 are fixed in the shell rear end, the distance of fourth convex lens 6 and display module 9 can be adjusted through the front end and the rear end junction of shell, thereby right projection module focusing. For example, when the front end and the rear end are connected by screw threads, the distance between the front end and the rear end is adjusted by rotation.
Since the operator needs to take a photograph together with the material evidence and the projection number after projecting beside the material evidence, it is inconvenient to take a photograph while holding the projector device, and therefore, the projector device is further provided with a fixing device for fixing the projector device. The fastening means may be used to fasten the projector device to the body, to the hand, to the camera, etc.
The invention has simple structure, is convenient and practical, and effectively solves the problems of disordered management, non-uniform coding and incapability of tracing of the existing material evidence; when investigation and evidence collection are performed, unique identification codes can be projected to each material evidence and are associated with the evidence, when the evidence is used in the later period, the system can form a perfect and effective evidence chain and legal active set around the material evidence, and is beneficial to information acquisition, material evidence tracing, field analysis in big data age, case serial-parallel connection and the like.
The above embodiments are preferred embodiments of the present invention, and are not intended to limit the scope of the present invention, which includes but is not limited to the embodiments, and equivalent modifications according to the present invention are within the scope of the present invention.
Claims (8)
1. A projector apparatus for improving recognition efficiency in a judicial evidence system, characterized in that: comprises a shell, a main control module arranged in the shell, a display module, a projection module, a power supply module, a power switch arranged on the shell, a setting key and a light outlet, wherein the main control module is respectively connected with the display module, the projection module, the power supply module and the setting key, the power switch is connected with the power supply module, the main control module can project the content displayed by the display module from the light outlet through the projection module,
the main control module comprises a processor, a projection control unit, a display control unit, a clock unit and a preset unit which are respectively connected with the processor, the shell is also provided with a positioning key, the main control module also comprises a positioning unit connected with the processor, the positioning key is connected with the positioning unit,
the processor can acquire clock data of the clock unit, form codes with the data set by the preset unit through combination, send the codes to the display control unit, and output the codes to the display module for display;
or,
the data are not required to be set through a preset unit, and the processor only needs to click a positioning key to acquire the current position information and then convert the current position information into data codes;
the code is projected beside the material evidence and photographed together with the material evidence, each material evidence is uniquely associated with the code composition, and the code is used in each judicial activity.
2. The projector apparatus of claim 1, wherein: the positioning key and the setting key are buried keys which are not higher than the surface of the shell.
3. The projector apparatus of claim 2, wherein: the main control module also comprises a wireless communication unit which is communicated with other devices.
4. A projector device as claimed in any one of claims 1 to 3, wherein: the display module is an LCD light-transmitting plate, and the LCD light-transmitting plate is fixed inside the projector device through a bracket.
5. The projector apparatus of claim 4, wherein: the projection module comprises a light source, a first convex lens, a second convex lens, a third convex lens and a fourth convex lens which are coaxially arranged, wherein the light source, the first convex lens, the second convex lens and the third convex lens are sequentially arranged on one side of the LCD light-transmitting plate, the third convex lens is reversely arranged at one end close to the LCD light-transmitting plate, and the fourth convex lens is arranged at a light outlet on the other side of the LCD light-transmitting plate.
6. The projector apparatus of claim 5, wherein: the LCD light-transmitting plate displays in a single line or two lines, and the light-emitting holes are flat-mouth light-emitting holes or square light-emitting holes.
7. The projector apparatus of claim 6, wherein: the shell is wholly pen-shaped, the shell is provided with front end and rear end, fourth convex lens and light-emitting hole set up the front end of shell, main control module and display module are fixed in the shell rear end, the distance of fourth convex lens and display module can be adjusted through the front end and the rear end junction of shell.
8. A projector device as claimed in any one of claims 1 to 3, wherein: the projector device is also provided with a fixing device for fixing the projector device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710434961.7A CN107422582B (en) | 2017-06-10 | 2017-06-10 | Projector device for improving recognition efficiency in judicial evidence system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710434961.7A CN107422582B (en) | 2017-06-10 | 2017-06-10 | Projector device for improving recognition efficiency in judicial evidence system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107422582A CN107422582A (en) | 2017-12-01 |
| CN107422582B true CN107422582B (en) | 2024-02-02 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710434961.7A Active CN107422582B (en) | 2017-06-10 | 2017-06-10 | Projector device for improving recognition efficiency in judicial evidence system |
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| CN (1) | CN107422582B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20230130522A1 (en) * | 2021-10-27 | 2023-04-27 | Kaijie Qiu | Time Display and Image Projection Module |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2804895Y (en) * | 2005-06-10 | 2006-08-09 | 蔡明景 | Miniature projector |
| CN202210211U (en) * | 2011-08-24 | 2012-05-02 | 余良东 | LED (light emitting diode) projection clock |
| CN203705813U (en) * | 2013-12-20 | 2014-07-09 | 福建瑞达精工股份有限公司 | Intelligent projection clock |
| CN205545644U (en) * | 2016-01-27 | 2016-08-31 | 杭州之图网络科技有限公司 | Two -dimensional code projection unit |
| CN206805108U (en) * | 2017-06-10 | 2017-12-26 | 郭子钰 | The projector device of recognition efficiency is improved in a kind of judicial evidence system |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20110141345A1 (en) * | 2009-12-11 | 2011-06-16 | Paul Ramsey | Projected Light Scale for Forensic Photography |
-
2017
- 2017-06-10 CN CN201710434961.7A patent/CN107422582B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2804895Y (en) * | 2005-06-10 | 2006-08-09 | 蔡明景 | Miniature projector |
| CN202210211U (en) * | 2011-08-24 | 2012-05-02 | 余良东 | LED (light emitting diode) projection clock |
| CN203705813U (en) * | 2013-12-20 | 2014-07-09 | 福建瑞达精工股份有限公司 | Intelligent projection clock |
| CN205545644U (en) * | 2016-01-27 | 2016-08-31 | 杭州之图网络科技有限公司 | Two -dimensional code projection unit |
| CN206805108U (en) * | 2017-06-10 | 2017-12-26 | 郭子钰 | The projector device of recognition efficiency is improved in a kind of judicial evidence system |
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| CN107422582A (en) | 2017-12-01 |
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