CN108024066A - Channel Image acquisition system - Google Patents
Channel Image acquisition system Download PDFInfo
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- CN108024066A CN108024066A CN201810005870.6A CN201810005870A CN108024066A CN 108024066 A CN108024066 A CN 108024066A CN 201810005870 A CN201810005870 A CN 201810005870A CN 108024066 A CN108024066 A CN 108024066A
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- triode
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Classifications
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N23/00—Cameras or camera modules comprising electronic image sensors; Control thereof
- H04N23/60—Control of cameras or camera modules
- H04N23/65—Control of camera operation in relation to power supply
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N7/00—Television systems
- H04N7/18—Closed-circuit television [CCTV] systems, i.e. systems in which the video signal is not broadcast
- H04N7/181—Closed-circuit television [CCTV] systems, i.e. systems in which the video signal is not broadcast for receiving images from a plurality of remote sources
Abstract
The invention discloses a kind of Channel Image acquisition system, including integrated camera device, interchanger, wireless transport module and server, integrated camera device includes power-supplying circuit and connected two cameras, interchanger distributes corresponding passage respectively for each camera, each camera sends the image of collection to interchanger by respective passage respectively, and interchanger is by the image mosaic for the synchronization for sending each camera according to preset image mosaic mode into a frame target image；Power-supplying circuit includes electrode input end, negative input, cathode output end, cathode output end, the first diode, first resistor, second resistance, the second zener diode, the first triode, 3rd resistor, the first capacitance, the 4th resistance, the second triode, the 3rd zener diode and the first metal-oxide-semiconductor.Easy-to-connect of the present invention is simple, circuit structure is relatively simple, cost is relatively low, the safety and reliability of circuit is higher.
Description
Technical field
The present invention relates to Image Acquisition field, more particularly to a kind of Channel Image acquisition system.
Background technology
At present, camera mainly by USB (Universal Serial Bus) interface, Ethernet interfaces or
It is MIPICSI (Mobile Industry Processor Interface Camera Serial Interface) interface, parallel
Interface, MIPI interfaces (Mobile Industry Processor Interface, mobile industry processor interface) etc., will adopt
The image transmitting of collection gives server (server can be (SuSE) Linux OS or Windows operating system).
In application scenes, such as automatic Pilot field, often more (such as 9 tunnels, or even more than ten of installation number on vehicle
Road) camera be used to gather ambient image data, installing too many camera, not only wiring is complicated, can also cause the wave of cost
Take.In addition, the circuit structure of the power pack in traditional image capturing system is complicated, hardware cost is higher.And due to tradition
Image capturing system in power pack lack corresponding circuit protection function, cause the safety and reliability of circuit not
It is high.
The content of the invention
The technical problem to be solved in the present invention is, for the drawbacks described above of the prior art, there is provided a kind of easy-to-connect letter
The Channel Image acquisition system single, circuit structure is relatively simple, cost is relatively low, the safety and reliability of circuit is higher.
The technical solution adopted by the present invention to solve the technical problems is：A kind of Channel Image acquisition system is constructed, is wrapped
Integrated camera device, interchanger, wireless transport module and server are included, the integration camera device includes power supply power supply electricity
Road and two cameras, two cameras are connected with the power-supplying circuit, and the interchanger is taken the photograph to be each described
As head distributes corresponding passage respectively, each camera sends the image of collection to described by respective passage respectively
Interchanger, the interchanger is by the image for the synchronization for sending each camera according to preset image mosaic mode
A frame target image is spliced into, and the target image is sent to the server by the wireless transport module, it is described
The target image is split into the image of each camera transmission according to preset image fractionation mode by server；
The power-supplying circuit includes electrode input end, negative input, cathode output end, cathode output end, first
Diode, first resistor, second resistance, the second zener diode, the first triode, 3rd resistor, the first capacitance, the 4th electricity
Resistance, the second triode, the 3rd zener diode and the first metal-oxide-semiconductor, cathode and the electrode input end of first diode
Connection, the anode of first diode is connected with the negative input, the cathode of first diode also respectively with institute
The one end for stating first resistor is connected with the cathode of the second zener diode, and the base stage of first triode is respectively with described first
The other end of resistance is connected with one end of second resistance, and the other end of the second resistance is connected with the negative input, institute
The emitter for stating the first triode is connected with the anode of second zener diode and one end of 3rd resistor respectively, and described
The other end of three resistance is connected with the negative input；
The collector of first triode passes through first capacitance one end and second with the 4th resistance respectively
The base stage connection of triode, the other end of the 4th resistance and the emitter of the second triode connect with the negative input
Connect, the collector of second triode cathode with the 3rd zener diode, the grid of the first metal-oxide-semiconductor, second respectively
The cathode of zener diode is connected with cathode output end, and the anode of the 3rd zener diode and the source electrode of the first metal-oxide-semiconductor are equal
It is connected with the negative input, the drain electrode of first metal-oxide-semiconductor is connected with the cathode output end, the electricity of first capacitance
Capacitance is 500pF.
In Channel Image acquisition system of the present invention, the power-supplying circuit further includes the 4th diode,
The anode of 4th diode is connected with the cathode of second zener diode, the cathode of the 4th diode with it is described
Cathode output end connects, the model S-562 of the 4th diode.
In Channel Image acquisition system of the present invention, the power-supplying circuit further includes the second capacitance, institute
The one end for stating the second capacitance is connected with the collector of second triode, the other end of second capacitance and described first
The grid connection of metal-oxide-semiconductor, the capacitance of second capacitance is 460pF.
In Channel Image acquisition system of the present invention, the power-supplying circuit further includes the 5th resistance, institute
The one end for stating the 5th resistance is connected with the emitter of second triode, and the other end and the anode of the 5th resistance are defeated
Enter end connection, the resistance value of the 5th resistance is 33k Ω.
In Channel Image acquisition system of the present invention, first triode is PNP type triode, described
Two triodes are NPN type triode, and first metal-oxide-semiconductor is N-channel MOS pipe.
In Channel Image acquisition system of the present invention, the wireless transport module is bluetooth module, WIFI moulds
Block, GPRS module, gsm module, CDMA module, WCDMA modules, Zigbee module or LoRa modules.
Implement the Channel Image acquisition system of the present invention, have the advantages that：Due to equipped with integration shooting dress
Put, interchanger, wireless transport module and server, integrated camera device include power-supplying circuit and two cameras, general
The camera device of two being made of one of camera, so can not only save cost, moreover it is possible to reduce the complexity of wiring, power supply
Power supply circuit include electrode input end, negative input, cathode output end, cathode output end, the first diode, first resistor,
Second resistance, the second zener diode, the first triode, 3rd resistor, the first capacitance, the 4th resistance, the second triode, the 3rd
Zener diode and the first metal-oxide-semiconductor, for the power-supplying circuit relative to traditional power supply circuit, the component that it is used is less,
Hardware cost can be so reduced, in addition, the first capacitance is used to prevent the interference between the first triode and the second triode, because
This easy-to-connect is simple, circuit structure is relatively simple, cost is relatively low, the safety and reliability of circuit is higher.
Brief description of the drawings
In order to illustrate more clearly about the embodiment of the present invention or technical scheme of the prior art, below will be to embodiment or existing
There is attached drawing needed in technology description to be briefly described, it should be apparent that, drawings in the following description are only this
Some embodiments of invention, for those of ordinary skill in the art, without creative efforts, can be with
Other attached drawings are obtained according to these attached drawings.
Fig. 1 is the structure diagram in Channel Image acquisition system one embodiment of the present invention；
Fig. 2 is the circuit diagram of power-supplying circuit in the embodiment.
Embodiment
Below in conjunction with the attached drawing in the embodiment of the present invention, the technical solution in the embodiment of the present invention is carried out clear, complete
Site preparation describes, it is clear that described embodiment is only part of the embodiment of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, those of ordinary skill in the art are obtained every other without making creative work
Embodiment, belongs to the scope of protection of the invention.
In Channel Image acquisition system embodiment of the present invention, the structure diagram of the Channel Image acquisition system is such as
Shown in Fig. 1.In Fig. 1, which includes integrated camera device 1, interchanger 2,3 and of wireless transport module
Server 4, wherein, integrated camera device 1 includes power-supplying circuit 11 and two cameras 12, two cameras 12 with
Power-supplying circuit 11 connects, and is powered by power-supplying circuit 11, and when camera 12 is linked into interchanger 2, interchanger 2 is
The camera 12 distributes corresponding passage, and camera 12 is carried out data transmission by the corresponding passage of distribution with interchanger 2.Tool
Body, interchanger 2 distributes corresponding passage respectively for each camera 12, and each camera 12 passes through the image of collection respectively
Respective passage sends interchanger 2 to, and interchanger 2 will send each camera 12 according to preset image mosaic mode same
The image mosaic at one moment is sent to server 4 into a frame target image, and by target image by wireless transport module 3, clothes
Business device 4 splits mode according to preset image and target image is split into the image that each camera 12 sends.
It is that one piece of each camera 12 distribution is sent out for storing the camera 12 in advance in server 4 in the present embodiment
The memory space of the image sent, server 4 send each camera 12 when obtaining the image that each camera 12 is sent
Image is stored into corresponding memory space respectively.The memory space can be hard disk of the carry on server 4 or
Memory space inside server 4.The parameter model of two cameras 12 can it is identical can not also be identical, such as one of them
Camera 12 is wide-angle camera, another camera 12 is long distance camera.
It is noted that above-mentioned preset image mosaic mode includes splicing order and splicing type, wherein splicing class
Type includes horizontally-spliced and longitudinal spliced.Splicing order is to splice the image of the transmission of which camera 12 successively.Assuming that each shooting
First 12 corresponding size is m*n, and two 12 corresponding working statuses of camera are normal.Assuming that splicing order is taken the photograph for first
As the two field pictures of the synchronization of the transmission of first 12 to the second camera 12, splicing type is longitudinal spliced, it is determined that mesh
The size of logo image is m*2, and two cameras 12 are connected on same interchanger 2, and is to work normally, each camera
12 picture size is 1280*720, if the size according to target image if longitudinal spliced be (1280*2) * 720, if according to horizontal stroke
Size to splicing then target image be 1280* (720*2), and image fractionation mode is corresponding with image mosaic mode.The present invention is logical
Cross the camera device 1 of two 12 being made of one of camera, so can not only save cost, moreover it is possible to reduce the complexity of wiring
Property, easy-to-connect is simple.
It is noted that in the present embodiment, wireless transport module 3 can be bluetooth module, WIFI module, GPRS moulds
Block, gsm module, CDMA module, WCDMA modules, Zigbee module or LoRa modules etc..By setting a variety of sides of being wirelessly transferred
Formula, can meet the needs of different user, increase the flexibility used.During in particular by LoRa modules, the distance of transmission compared with
Far, and communication performance is relatively stable, suitable for the occasion higher to QoS requirement.In practical applications, user can root
According to itself needing flexibly to select corresponding wireless transmission method.
Fig. 2 is the circuit diagram of power-supplying circuit in the present embodiment, and in Fig. 2, which is included just
Pole input terminal Vin+, negative input Vin-, cathode output end Vo+, cathode output end Vo-, the first diode D1, first resistor
R1, second resistance R2, the second zener diode D2, the first triode Q1,3rd resistor R3, the first capacitance C1, the 4th resistance R4,
Second triode Q2, the 3rd zener diode D3 and the first metal-oxide-semiconductor M1, wherein, cathode and the cathode of the first diode D1 input
Hold Vin+ connections, the anode of the first diode D1 is connected with negative input Vin-, the cathode of the first diode D1 also respectively with
One end of first resistor R1 is connected with the cathode of the second zener diode D2, the base stage of the first triode Q1 respectively with first resistor
The other end of R1 is connected with one end of second resistance R2, and the other end of second resistance R2 is connected with negative input Vin-, and first
The emitter of triode Q1 is connected with the anode of the second zener diode D2 and one end of 3rd resistor R3 respectively, 3rd resistor R3
The other end be connected with negative input Vin-.
The collector of first triode Q1 passes through the first capacitance C1 one end with the 4th resistance R4 and the second triode respectively
The emitter of the base stage connection of Q2, the other end of the 4th resistance R4 and the second triode Q2 are connected with negative input Vin-,
The cathode with the 3rd zener diode D3, the grid of the first metal-oxide-semiconductor M1, the second voltage stabilizing two respectively of the collector of second triode Q2
The cathode of pole pipe D2 is connected with cathode output end Vo+, the source electrode of the anode of the 3rd zener diode D3 and the first metal-oxide-semiconductor M1 with
Negative input Vin- connections, the drain electrode of the first metal-oxide-semiconductor M1 are connected with cathode output end Vo-.
The power-supplying circuit 11 is relative to traditional power supply circuit, and the component that it is used is less, and circuit structure is more
Simply, hardware cost can so be reduced.First capacitance C1 is coupled capacitor, for preventing the first triode Q1 and the two or three pole
Interference between pipe Q2, therefore the safety and reliability of circuit is higher.It is noted that in the present embodiment, the first capacitance
The capacitance of C1 is 500pF, and certainly, in practical applications, the capacitance of the first capacitance C1 can also carry out as the case may be
Corresponding adjustment.
First diode D1 is in parallel with direct-current input power supplying, when direct-current input power supplying is reversed, i.e. electrode input end Vin+
Direct-current input power supplying anode is connected, negative input Vin- connection direct-current input power supplying cathodes, at this time, the first diode D1 is led
It is logical, very big short circuit current flow is produced, promotes direct-current input power supplying overcurrent protection, or the fuse in Burnout circuit uses to remind
Person, the first diode D1 reversely end in normal work, and system effectiveness loss is zero, due to not sealing in circuit, therefore
Pressure drop is not produced, does not also just produce loss, the back-pressure so inputted would not damage follow-up Switching Power Supply.
Second zener diode D2 obtains operating current by 3rd resistor R3, still in voltage stabilizing state, and first resistor
The terminal voltage of R1 is obtained by the partial pressure of first resistor R1 and second resistance R2, is extremely sent out insufficient for the base stage of the first triode Q1
Emitter-base bandgap grading turns on, the first triode Q1 cut-offs, then, due to the presence of the 4th resistance R4, play the role of drop-down, the first triode Q1
Collector output low level, at this moment the second triode Q2 be in cut-off state, the voltage of voltage regulation of the 3rd zener diode D3 is big
The cut-in voltage V of first metal-oxide-semiconductor M1GS, the first metal-oxide-semiconductor M1 is in saturation conduction state, then the at this moment electricity of direct-current input power supplying
Pressure is all added on cathode output end Vo+ and cathode output end Vo-, follow-up switch power supply rood electricity normal work.According to
Above-mentioned working status, the first metal-oxide-semiconductor M1 are to be connected on electrode input end Vin+ into the circuit of cathode output end Vo-, i.e., usually
In described earth loop, the first metal-oxide-semiconductor M1 can be directly driven through the 3rd zener diode D3 using direct-current input power supplying, the
Conducting internal resistance (Rds (ON)) after one metal-oxide-semiconductor M1 conductings is extremely low, and insertion loss is low, and quiescent dissipation is extremely low when normal；Due to not having
Using booster circuit, therefore quiescent dissipation further reduces.
When overvoltage occurs in direct-current input power supplying, the second zener diode D2 obtains operating current by 3rd resistor R3,
Still in voltage stabilizing state, and obtained by the partial pressure that the terminal voltage of first resistor R1 is first resistor R1 and second resistance R2, but it is enough
So that the base stage of the first triode Q1 to emitter turns on, and the first triode Q1 conductings, the collector output of the first triode Q1
High level, at this moment the second triode Q2 be in the second triode of magnifying state Q2 and be in fact in saturation conduction state, the 3rd is steady
The voltage of voltage regulation of diode D3 is pressed because of the saturation conduction of the second triode Q2, and the saturation conduction pressure equal to the second triode Q2
Drop, is generally less than 0.3V, much smaller than the cut-in voltage V of the first metal-oxide-semiconductor M1GS, the first metal-oxide-semiconductor M1 is in cut-off state, then this
When direct-current input power supplying voltage can not be added on cathode output end Vo+ and cathode output end Vo-, follow-up switching power circuit
It is stopped because of no input voltage.In overvoltage, it is anti-overvoltage effect the first metal-oxide-semiconductor M1 because shut-off, that is, end and
It is less likely to be damaged.
It is noted that in the present embodiment, the first triode Q1 is PNP type triode, and the second triode Q2 is NPN type
Triode, the first metal-oxide-semiconductor M1 are N-channel MOS pipe.Certainly, in practical applications, the first triode Q1 can also be NPN type three
Pole pipe, the second triode Q2 can also be PNP type triode, and the first metal-oxide-semiconductor M1 can also be P-channel metal-oxide-semiconductor, but at this moment circuit
Structure also accordingly to change.
In the present embodiment, which further includes the 4th diode D4, the anode of the 4th diode D4 and
The cathode connection of two zener diode D2, the cathode of the 4th diode D4 are connected with cathode output end Vo-.4th diode D4 is
Current Limiting Diodes, for carrying out current-limiting protection to the branch between the first triode Q1 and the second triode Q2, further to increase
The safety and reliability on forceful electric power road.It is noted that in the present embodiment, the model S-562 of the 4th diode D4, when
So, in practical applications, the 4th diode D4 can select diode of other models with similar functions.
In the present embodiment, which further includes the second capacitance C2, one end and the two or three of the second capacitance C2
The collector connection of pole pipe Q2, the other end of the second capacitance C2 are connected with the grid of the first metal-oxide-semiconductor M1.Second capacitance C2 is coupling
Capacitance, for preventing the interference between the second triode Q2 and the first metal-oxide-semiconductor M1, with further strengthen the security of circuit and
Reliability.It is noted that in the present embodiment, the capacitance of the second capacitance C2 is 460pF, certainly, in practical applications, the
The capacitance of two capacitance C2 can adjust accordingly as the case may be.
In the present embodiment, which further includes the 5th resistance R5, one end and the two or three of the 5th resistance R5
The emitter connection of pole pipe Q2, the other end of the 5th resistance R5 are connected with negative input Vin-.5th resistance R5 is limited galvanic electricity
Resistance, for carrying out current-limiting protection to the emitter current of the second triode Q2, to further enhance current limitation effect.It is worth mentioning
It is that in the present embodiment, the resistance value of the 5th resistance R5 is 33k Ω, certainly, in practical applications, the resistance value of the 5th resistance R5 can be with
Adjust accordingly as the case may be.
In short, in the present embodiment, the camera device 1 of two 12 being made of one of camera so can not only be saved
Cost, moreover it is possible to reduce the complexity of wiring, easy-to-connect is simple.The power-supplying circuit 11 relative to traditional power supply circuit,
The component that it is used is less, and circuit structure is relatively simple, can so reduce hardware cost.In addition, the power-supplying circuit
Coupled capacitor is equipped with 11, therefore the safety and reliability of circuit is higher.
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, all essences in the present invention
With within principle, any modification, equivalent replacement, improvement and so on, should all be included in the protection scope of the present invention god.
Claims (6)
1. a kind of Channel Image acquisition system, it is characterised in that including integrated camera device, interchanger, be wirelessly transferred mould
Block and server, the integration camera device include power-supplying circuit and two cameras, two cameras with
The power-supplying circuit connection, the interchanger is that each camera distributes corresponding passage respectively, each described to take the photograph
As head sends the image of collection to the interchanger by respective passage respectively, the interchanger is by according to preset image
The image mosaic for the synchronization that connecting method sends each camera is into a frame target image, and by the target figure
As being sent to the server by the wireless transport module, the server splits mode by described according to preset image
Target image splits into the image that each camera is sent；
The power-supplying circuit includes electrode input end, negative input, cathode output end, cathode output end, the one or two pole
Pipe, first resistor, second resistance, the second zener diode, the first triode, 3rd resistor, the first capacitance, the 4th resistance,
Two triodes, the 3rd zener diode and the first metal-oxide-semiconductor, the cathode of first diode are connected with the electrode input end,
The anode of first diode is connected with the negative input, and the cathode of first diode is also respectively with described first
One end of resistance is connected with the cathode of the second zener diode, the base stage of first triode respectively with the first resistor
The other end is connected with one end of second resistance, and the other end of the second resistance is connected with the negative input, and described first
The emitter of triode is connected with the anode of second zener diode and one end of 3rd resistor respectively, the 3rd resistor
The other end be connected with the negative input；
The collector of first triode passes through first capacitance one end and the two or three pole with the 4th resistance respectively
The base stage connection of pipe, the other end of the 4th resistance and the emitter of the second triode are connected with the negative input,
The collector of second triode cathode, the grid of the first metal-oxide-semiconductor, the second voltage stabilizing with the 3rd zener diode respectively
The cathode of diode is connected with cathode output end, and the anode of the 3rd zener diode and the source electrode of the first metal-oxide-semiconductor are and institute
Negative input connection is stated, the drain electrode of first metal-oxide-semiconductor is connected with the cathode output end, the capacitance of first capacitance
For 500pF.
2. Channel Image acquisition system according to claim 1, it is characterised in that the power-supplying circuit further includes
4th diode, the anode of the 4th diode are connected with the cathode of second zener diode, the 4th diode
Cathode be connected with the cathode output end, the model S-562 of the 4th diode.
3. Channel Image acquisition system according to claim 2, it is characterised in that the power-supplying circuit further includes
Second capacitance, one end of second capacitance are connected with the collector of second triode, the other end of second capacitance
It is connected with the grid of first metal-oxide-semiconductor, the capacitance of second capacitance is 460pF.
4. Channel Image acquisition system according to claim 3, it is characterised in that the power-supplying circuit further includes
5th resistance, one end of the 5th resistance are connected with the emitter of second triode, the other end of the 5th resistance
It is connected with the negative input, the resistance value of the 5th resistance is 33k Ω.
5. Channel Image acquisition system according to any one of claims 1 to 4, it is characterised in that the described 1st
Pole pipe is PNP type triode, and second triode is NPN type triode, and first metal-oxide-semiconductor is N-channel MOS pipe.
6. Channel Image acquisition system according to any one of claims 1 to 4, it is characterised in that the wireless biography
Defeated module for bluetooth module, WIFI module, GPRS module, gsm module, CDMA module, WCDMA modules, Zigbee module or
LoRa modules.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810005870.6A CN108024066A (en) | 2018-01-03 | 2018-01-03 | Channel Image acquisition system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810005870.6A CN108024066A (en) | 2018-01-03 | 2018-01-03 | Channel Image acquisition system |
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| Publication Number | Publication Date |
|---|---|
| CN108024066A true CN108024066A (en) | 2018-05-11 |
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ID=62072519
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810005870.6A Pending CN108024066A (en) | 2018-01-03 | 2018-01-03 | Channel Image acquisition system |
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| Country | Link |
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| CN (1) | CN108024066A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110324589A (en) * | 2019-08-06 | 2019-10-11 | 嘉应学院 | A kind of monitoring system and method for tourist attraction |
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2018
- 2018-01-03 CN CN201810005870.6A patent/CN108024066A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110324589A (en) * | 2019-08-06 | 2019-10-11 | 嘉应学院 | A kind of monitoring system and method for tourist attraction |
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