CN210534762U - Portable video investigation and retrieval equipment supporting precise play control - Google Patents
Portable video investigation and retrieval equipment supporting precise play control Download PDFInfo
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- CN210534762U CN210534762U CN201920853993.5U CN201920853993U CN210534762U CN 210534762 U CN210534762 U CN 210534762U CN 201920853993 U CN201920853993 U CN 201920853993U CN 210534762 U CN210534762 U CN 210534762U
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Abstract
The utility model discloses a support portable video investigation retrieval equipment of accurate broadcast control, including notebook computer, expansion screen and shuttle keyboard that flies. The notebook host is connected with the expansion screen through the USB Type-C interface, and double-screen expansion display is achieved. The shuttle flying keyboard is connected with the notebook computer through the Bluetooth, and the playing of the notebook computer is accurately controlled through the shuttle flying keyboard. The portable video investigation retrieval equipment has the advantages of being light in weight, flexible in combination, convenient and fast, convenient to carry and the like, and is convenient and practical when double-screen extended display and accurate play control are achieved.
Description
Technical Field
The utility model relates to a control technique is broadcast to the surveillance video, especially relates to a support portable video investigation retrieval equipment of accurate broadcast control.
Background
The police video investigation department is a business department which professionally uses the monitoring video to investigate and solve a case, and carries out case investigation by calling the field monitoring video after the case, so that strong requirements are brought to the retrieval of the field monitoring video through the mobile video retrieval equipment.
However, the currently used mobile video retrieval devices have several problems: 1. the retrieval equipment adopting the high-performance notebook mode cannot provide double-screen display and is inconvenient to use. 2. When a video is watched, no accurate broadcasting control equipment is provided, and the frame accuracy control on the video cannot be conveniently carried out; 3. the mobile equipment capable of providing double-screen display adopts an industrial personal computer, is heavy and inconvenient to carry on site, and cannot provide accurate control of video frames.
SUMMERY OF THE UTILITY MODEL
The utility model discloses main aim at provides a support portable video investigation retrieval equipment of accurate broadcast control to solve current mobile video retrieval equipment and can't realize accurate broadcast control and adopt the industrial computer to realize the not portable problem of double screen display demonstration.
The utility model discloses a realize through following technical scheme:
a portable video investigation retrieval device supporting precise playing control comprises a notebook computer, an expansion screen and a shuttle keyboard;
the notebook host is connected with the expansion screen through a USB Type-C interface, and the shuttle flying keyboard is connected with the notebook host through Bluetooth;
the flying shuttle keyboard comprises an MCU, a first key unit, a second key unit, a flying shuttle, a Bluetooth module, a rechargeable lithium battery unit and a charging and discharging control circuit;
the rechargeable lithium battery unit is connected with the charge and discharge control circuit and supplies power to the MCU and the Bluetooth module through the charge and discharge control circuit;
the shuttle comprises a duplex potentiometer and a knob arranged on the duplex potentiometer, the duplex potentiometer comprises a first potentiometer and a second potentiometer, the knob comprises an outer knob and an inner knob, the outer knob is used for controlling the first potentiometer to rotate, and the inner knob is used for controlling the second potentiometer to rotate;
the first key unit and the second key unit both comprise a plurality of control keys, the MCU is connected with the first key unit and each control key on the second key unit, the first potentiometer and the second potentiometer, the Bluetooth module and the charging and discharging control circuit and is used for receiving signals of each control key on the first key unit and the second key unit and signals of the first potentiometer and the second potentiometer, and transmitting the signals of each control key on the first key unit and the second key unit and the signals of the first potentiometer and the second potentiometer to the notebook host through the Bluetooth module and controlling charging and discharging of the rechargeable lithium battery unit through the charging and discharging control circuit.
Furthermore, the shuttle flying keyboard further comprises a USB charging interface and a USB discharging interface; the USB charging interface and the USB discharging interface are connected with the charging and discharging control circuit.
Further, the USB charging interface is a MicroUSB charging interface.
Further, the rechargeable lithium battery unit includes two rechargeable lithium batteries.
Further, the capacity of the rechargeable lithium battery unit is greater than or equal to 4000 milliampere hours.
Furthermore, the expansion screen is a liquid crystal flat panel display screen.
Compared with the prior art, the utility model provides a support portable video investigation retrieval equipment of accurate broadcast control, including notebook host computer, expansion screen and shuttle keyboard. The notebook host is connected with the expansion screen through the USB Type-C interface, and double-screen expansion display is achieved. The shuttle flying keyboard is connected with the notebook computer through the Bluetooth, and the playing of the notebook computer is accurately controlled through the shuttle flying keyboard. The portable video investigation retrieval equipment has the advantages of being light in weight, flexible in combination, convenient and fast, convenient to carry and the like, and is convenient and practical when double-screen extended display and accurate play control are achieved.
Drawings
Fig. 1 is a schematic diagram illustrating an overall composition principle of a portable video investigation and retrieval device supporting precise play control according to an embodiment of the present invention;
FIG. 2 is a schematic diagram of the outline structure of a shuttle keyboard;
FIG. 3 is a schematic circuit diagram of a shuttle keyboard.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention will be described in further detail with reference to the following embodiments and accompanying drawings.
As shown in fig. 1, the portable video investigation and retrieval device supporting precise play control provided by the embodiment of the present invention includes a notebook computer, an expansion screen 19 and a shuttle keyboard 15. The notebook host computer is connected with the expansion screen 19 through the USB Type-C interface, so that double-screen expansion is realized, and the expansion screen 19 can be a liquid crystal flat panel display screen to ensure the display effect and the portability. The shuttle flying keyboard 15 is connected with the notebook computer through Bluetooth, and the playing of the notebook computer is accurately controlled through the shuttle flying keyboard 15. This portable video investigation retrieval equipment has realized the double-screen extension simultaneously and has shown, has avoided adopting the industrial computer to realize the non-portable problem that the double-screen extension shows and causes again, convenient and practical.
As shown in fig. 2 and 3, the flying shuttle keyboard 15 includes an MCU1, a first key unit 2, a second key unit 4, a flying shuttle 12, a bluetooth module 5, a rechargeable lithium battery unit 9, and a charge and discharge control circuit 6.
The rechargeable lithium battery unit 9 is connected with the charging and discharging control circuit 6, and supplies power to the MCU1 and the Bluetooth module 5 through the charging and discharging control circuit 6.
The shuttle 12 comprises a duplex potentiometer and a knob arranged on the duplex potentiometer, the duplex potentiometer comprises a first potentiometer 13 and a second potentiometer 14, the knob comprises an outer knob 17 and an inner knob 18, the outer knob 17 is used for controlling the first potentiometer 13 to rotate, and the inner knob 18 is used for controlling the second potentiometer 14 to rotate.
The first key unit 2 and the second key unit 4 both comprise a plurality of control keys 3, the MCU1 is connected to the control keys 3 on the first key unit 2 and the second key unit 4, the first potentiometer 13 and the second potentiometer 14, the bluetooth module 5 and the charging and discharging control circuit 6, and is configured to receive signals of the control keys 3 on the first key unit 2 and the second key unit 4 and signals of the first potentiometer 13 and the second potentiometer 14, send the signals of the control keys 3 on the first key unit 2 and the second key unit 4 and signals of the first potentiometer 13 and the second potentiometer 14 to the notebook host 16 through the bluetooth module 5, and control charging and discharging of the rechargeable lithium battery unit 9 through the charging and discharging control circuit 6.
In the shuttle flying keyboard 15, in the power-off state, the MCU1 and the bluetooth module 5 of the device do not work, the rechargeable lithium battery unit 9 and the charge and discharge control circuit 6 work normally, and in the power-on state, the MCU1 and the bluetooth module 5 also enter the working state. The process of controlling video playing of the notebook computer 16 by the shuttle keyboard 15 is as follows:
and (3) turning on a power switch of the shuttle keyboard 15, automatically pairing the shuttle keyboard 15 with the notebook host computer 16 through the built-in Bluetooth module 5 after the power is turned on, and playing control can be performed on the video played by the notebook host computer 16 after the pairing is successful. When the keys on the first key unit 2 and the second key unit 4 and the first potentiometer 13 and the second potentiometer 14 of the shuttle 12 are operated, corresponding signals are generated, the signals are substantially control signals for the notebook host computer 16, after the MCU1 receives the signals, the signals are transmitted to the notebook host computer 16 through the bluetooth module 5, and after the notebook host computer 16 receives the signals through the bluetooth, the video can be correspondingly played and controlled according to the signals.
The jog shuttle keyboard 15 has three play control modes:
firstly, play control:
the play control is performed by each control key 3 on the first key unit 2, and the first key unit 2 includes three control keys 3, and the three control keys 3 control video play/pause, forward 5 seconds, and reverse 5 seconds, respectively.
Secondly, controlling the mark points:
the marking points are controlled through the control keys 3 on the second key unit 4, the second key unit 4 comprises three control keys 3, and the three control keys 3 are respectively used for marking points on a time line, jumping to a previous marking point and jumping to a next marking point.
Thirdly, controlling the flying shuttle 12 by a knob:
the outer layer knob 17 of the flying shuttle 12 controls the first potentiometer 13 to rotate clockwise or anticlockwise so as to increase or decrease the video playing speed, the playing speed is increased by one time when the first potentiometer rotates one scale clockwise, and the playing speed is decreased by one time when the first potentiometer rotates one scale anticlockwise;
the second potentiometer 14 is controlled by the inner knob 18 of the shuttle 12 to rotate clockwise or counterclockwise to advance or reverse frames of video, one frame forward for each 15 degrees clockwise rotation and one frame reverse for each 15 degrees counterclockwise rotation.
The shuttle keyboard 15 further comprises a first indicator light 10 for indicating the Bluetooth connection state of the shuttle keyboard 15 and the notebook host computer 16 and a second indicator light 11 for indicating the data transmission state of the shuttle keyboard 15, and the first indicator light 10 and the second indicator light 11 are connected with the MCU 1. The first indicator light 10 and the second indicator light 11 can be controlled by the MCU1, when the host computer 16 of the notebook computer is successfully connected with the bluetooth module 5 in a pairing manner, the first indicator light 10 is turned on green, otherwise, the first indicator light 10 is turned on red. When the shuttle keyboard 15 is performing data transmission, the second indicator light 11 blinks, otherwise the second indicator light 11 does not blink.
Shuttle keyboard 15 also includes USB charging interface 7 and USB discharging interface 8. The USB charging interface 7 and the USB discharging interface 8 are connected with the charging and discharging control circuit 6. The flying shuttle keyboard 15 can be charged through the USB charging interface 7, and the USB charging interface 7 is a MicroUSB charging interface. Other electronic products can be powered through the USB discharging interface 8.
The rechargeable lithium battery cell 9 includes two rechargeable lithium batteries. When the capacity of the rechargeable lithium battery unit 9 is greater than or equal to 4000 milliamperes, sufficient endurance guarantee is provided for the shuttle flying keyboard 15.
The above-described embodiments are merely preferred embodiments, which are not intended to limit the scope of the present invention, and any modifications, equivalent substitutions, improvements, etc. made within the spirit and principle of the present invention should be included in the scope of the present invention.
Claims (6)
1. A portable video investigation retrieval device supporting precise playing control is characterized by comprising a notebook computer host, an expansion screen and a shuttle keyboard;
the notebook host is connected with the expansion screen through a USB Type-C interface, and the shuttle flying keyboard is connected with the notebook host through Bluetooth;
the flying shuttle keyboard comprises an MCU, a first key unit, a second key unit, a flying shuttle, a Bluetooth module, a rechargeable lithium battery unit and a charging and discharging control circuit;
the rechargeable lithium battery unit is connected with the charge and discharge control circuit and supplies power to the MCU and the Bluetooth module through the charge and discharge control circuit;
the shuttle comprises a duplex potentiometer and a knob arranged on the duplex potentiometer, the duplex potentiometer comprises a first potentiometer and a second potentiometer, the knob comprises an outer knob and an inner knob, the outer knob is used for controlling the first potentiometer to rotate, and the inner knob is used for controlling the second potentiometer to rotate;
the first key unit and the second key unit both comprise a plurality of control keys, the MCU is connected with the first key unit and each control key on the second key unit, the first potentiometer and the second potentiometer, the Bluetooth module and the charging and discharging control circuit and is used for receiving signals of each control key on the first key unit and the second key unit and signals of the first potentiometer and the second potentiometer, and transmitting the signals of each control key on the first key unit and the second key unit and the signals of the first potentiometer and the second potentiometer to the notebook host through the Bluetooth module and controlling charging and discharging of the rechargeable lithium battery unit through the charging and discharging control circuit.
2. The portable video surveillance retrieval device supporting precise playback control of claim 1, wherein the shuttle keyboard further comprises a USB charging interface and a USB discharging interface; the USB charging interface and the USB discharging interface are connected with the charging and discharging control circuit.
3. The portable video surveillance retrieval device supporting precise playback control of claim 2, wherein the USB charging interface is a microsusb charging interface.
4. The portable video surveillance retrieval device supporting precise playback control as claimed in claim 1, wherein the rechargeable lithium battery unit includes two rechargeable lithium batteries.
5. The portable video surveillance retrieval device supporting precise playback control as claimed in claim 4, wherein the rechargeable lithium battery cell capacity is greater than or equal to 4000 ma-hrs.
6. The portable video investigation-retrieval device supporting precise playback control of claim 1, wherein the extended screen is a liquid crystal flat panel display screen.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920853993.5U CN210534762U (en) | 2019-06-06 | 2019-06-06 | Portable video investigation and retrieval equipment supporting precise play control |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920853993.5U CN210534762U (en) | 2019-06-06 | 2019-06-06 | Portable video investigation and retrieval equipment supporting precise play control |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210534762U true CN210534762U (en) | 2020-05-15 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920853993.5U Active CN210534762U (en) | 2019-06-06 | 2019-06-06 | Portable video investigation and retrieval equipment supporting precise play control |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210534762U (en) |
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2019
- 2019-06-06 CN CN201920853993.5U patent/CN210534762U/en active Active
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