CN207744072U - A kind of endoscope camera head - Google Patents
A kind of endoscope camera head Download PDFInfo
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- CN207744072U CN207744072U CN201820135469.XU CN201820135469U CN207744072U CN 207744072 U CN207744072 U CN 207744072U CN 201820135469 U CN201820135469 U CN 201820135469U CN 207744072 U CN207744072 U CN 207744072U
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- power amplifier
- processing circuit
- signal
- signal processing
- resistance
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Abstract
The utility model discloses a kind of endoscope camera heads,Including master controller and signal processing circuit,The signal end of the master controller is connected with signal processing circuit,The signal end of the signal processing circuit is connected with video decoding chip,The signal input part of the video decoding chip is connected with camera,The signal processing circuit includes power amplifier,The reverse side of the power amplifier is connected separately with filter capacitor and gain impedance,The other end of the filter capacitor is connected separately with input resistance and load resistance,The other end of the input resistance is connected with coil transceiver,It is connected with storage capacitor at the connecting node of the load resistance and filter capacitor,The other end of the storage capacitor is connected with gain impedance,Whole system can realize the real-time acquisition of digital picture,Real-time display and storage,One system of self-contained,High sensitivity,Security availability is strong,It is at low cost,Economic serviceability is high,It is efficient,It is strong expansion can be expanded.
Description
Technical field
The utility model is related to endoscopic arts, specially a kind of endoscope camera head.
Background technology
The existing endoscopic system for trachea cannula belongs to the fujinon electronic video endoscope of hard tube, is mainly in facing
Endotracheal intubation on bed and invent, it can quickly help labored breathing patient to set up exhalation passages, with similar work(
Energy product is compared, it is a auxiliary trachea cannula Successful Operation clinically most accurately, quickly, convenient, safe, is exhaled in guarantee
Unimpeded one of the medical first aid auxiliary instrument in road is inhaled, there is also following shortcomings for existing endoscope camera head system：
For example, application No. is 201410175945.7, patent name is a kind of patent of invention of endoscope：
Its endoscope provided has many advantages, such as that light-weight, low cost, imaging process are lossless.
But existing endoscope camera head has the following defects：
（1）Existing endoscope camera head module is deposited since its internal real-time data acquisition system processing speed is slower
It is smaller to store up space, is the certain difficulty of condition-inference band two it is difficult to store a large amount of lesion data of patient
（2）Existing endoscope camera head equipment, there is also certain to do in terms of the amplification and filtering for small-signal
It disturbs so that there are errors in the acquisition of signal and processing procedure, to reduce the diagnosis performance of lesion.
Invention content
In order to overcome the shortcomings of that prior art, the utility model provide a kind of endoscope camera head, can effectively solve
The problem of certainly background technology proposes.
Technical solution adopted by the utility model to solve its technical problems is：
A kind of endoscope camera head, including master controller and signal processing circuit, the signal end and letter of the master controller
Number processing circuit is connected, and the signal end of the signal processing circuit is connected with video decoding chip, the video decoding chip
Signal input part be connected with camera, the signal processing circuit includes power amplifier, the reverse phase of the power amplifier
End is connected separately with filter capacitor and gain impedance, and the other end of the filter capacitor is connected separately with input resistance and load electricity
Resistance, the other end of the input resistance are connected with coil transceiver, and the other end of the load resistance is directly grounded, described negative
It carries and is connected with storage capacitor at the connecting node of resistance and filter capacitor, the other end of the storage capacitor is connected with gain impedance
It connects, the first pin of the power amplifier is also associated with adjustable resistance, the adjustable port of the adjustable resistance and power amplification
The power end of device is connected, and the adjustable resistance other end is connected with the 8th pin of power amplifier.
Further, also pass through control line and power amplifier at the connecting node of the gain impedance and storage capacitor
6th pin is connected, and the in-phase end of the power amplifier is directly grounded.
Further, the inside of the master controller is additionally provided with data collecting card, the signal end of the data collecting card
It is connected with core cpu processor by signal processing circuit.
Further, LCD display module and SD card storage mould is also respectively connected in the signal end of the core cpu processor
Block.
Further, the power end of the master controller and core cpu processor is respectively connected with power supply module.
Compared with prior art, the utility model has the beneficial effects that：
（1）The endoscope camera head of the utility model can realize the real-time acquisition of digital picture, real-time display and deposit
Storage, one system of entire endoscopic system self-contained, high sensitivity, security availability is strong, at low cost, and economic serviceability is high, efficiency
Height, can expand that expansion is strong, slotting tracheae operation when realizing first aid that can be safe and reliable, have certain application value and market
Promotion prospect；
（2）The signal processing circuit of the utility model is built-in with coil receiver, amplifying circuit and zero crossing circuitry, can lead to
The voltage value for crossing adjustment power amplifier control pin controls its amplification factor, can according to transmitting coil and receiving coil away from
From, to filtering output electric signal select different amplification factors to be amplified after export.
Description of the drawings
Fig. 1 is the signal processing circuit circuit diagram of the utility model；
Fig. 2 is the control module schematic diagram of the utility model.
Figure label：
1- master controllers；2- signal processing circuits；3- video decoding chips；4- cameras；5- data collecting cards；6- powers
Module；7-CPU core processors；8-LCD display modules；9-SD card memory modules.
Specific implementation mode
The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model
Clearly and completely describe, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole
Embodiment.Based on the embodiments of the present invention, those of ordinary skill in the art are without making creative work
The every other embodiment obtained, shall fall within the protection scope of the present invention.
As depicted in figs. 1 and 2, the utility model provides at a kind of endoscope camera head, including master controller 1 and signal
Circuit 2 is managed, the master controller 1 is using S3C6410AMR11 chips as core processor chip, the letter of the master controller 1
Number end is connected with signal processing circuit 2, and the signal end of the signal processing circuit 2 is connected with video decoding chip 3, described to regard
Frequency decoding chip 3 uses the chip of TVP5151 models, the signal input part of the video decoding chip 3 to be connected with camera 4,
Camera 4 is responsible for acquisition video image, and the 4 groups of outputs of entire camera are simulation CVBS vision signals, miniature webcam module
It is integrated with cold light source, cmos sensor and video coding chip.COMS imaging sensors are photaesthesia components, it is acquired
Be high-speed parallel video signal, and interference is strong in the transmission, is easily distorted, so inside module packaging, just
Through being converted by LVDS technologies, output is the CVBS video signals simulated, and the signal processing circuit 2 includes connecing
Coil circuit, amplifying circuit, filter circuit are received, pumping signal is loaded to transmitting coil by external magnetic field, excites the electricity of variation
Magnetic field, receiving coil are placed in the electromagnetic field of variation, experience the variation in magnetic field, export electrical signal of reaction, transmitting coil load
After pumping signal, the electromagnetic field of variation is generated around it, receiving coil group senses the change in magnetic field in the electromagnetic field of variation
Change, generates three voltage signals respectively, if the distance between two coupling coils are farther out, electrical signal of reaction is weaker, needs by putting
It is exported after big circuit, the signal processing circuit 2 is mainly to be carried out to the vision signal that endoscope distal end camera module exports
Video decoding operation facilitates the input of video signal system.
It further illustrates, front-end collection video image is realized using camera 4, after the decoding of middle part Video decoding module
It is transferred to core sheet processor from system resource camera interface by SCCB agreements, and with real-time display and store function
Portable system, system can enable the patient within the effective time, and safety is fast and effectively inserted into trachea cannula, quickly
It is that patient sets up artificial airway, ensures that the upper respiratory tract of patient is unobstructed.
The signal processing circuit 2 includes power amplifier S, the power amplifier S using model OP07 models
Power amplifier does not need additional zeroing measure with low-down input offset voltage, the power amplifier S's
Reverse side is connected separately with filter capacitor C1 and the other end of gain impedance R1, the filter capacitor C1 are connected separately with input electricity
Resistance R2 and load resistance R3, the other end of the input resistance R2 are connected with coil transceiver A, and the load resistance R3's is another
One end is directly grounded, and storage capacitor C2, the energy storage are connected at the connecting node of the load resistance R3 and filter capacitor C1
The other end of capacitance C2 is connected with gain impedance R1, and the first pin of the power amplifier S is also associated with adjustable resistance R4,
Adjustable resistance R4 is mainly used to adjust input offset voltage, the electricity of the adjustable port and power amplifier S of the adjustable resistance R4
Source VCC is connected, and the adjustable resistance R4 other ends are connected with the 8th pin of power amplifier S, the gain impedance
R1 be also connected with the 6th pin of power amplifier S by control line at the connecting node of storage capacitor C2, the power
The in-phase end of amplifier S is directly grounded GND, and the function of the circuit is so that useful frequency signal is passed through while unwanted frequency being inhibited to believe
Number, frequency is selected, noise and interference signal are filtered out, retains useful signal.Selected in circuit with negative-feedback
Bandpass filter can calculate peripheral circuit resistance according to desired frequency, can according to transmitting coil and receiving coil away from
From, to filtering output electric signal select different amplification factors to be amplified after export.
It further illustrates, the inside of the master controller 1 is additionally provided with data collecting card 5, the data collecting card 5
Signal end core cpu processor 7 is connected with by signal processing circuit, select ARM11 series S3C6410 chips as CPU
LCD display module 8 and SD card memory module 9 is also respectively connected in the signal end of core processor, the core cpu processor 7,
The LCD display module 8 shows that video image, the SD card store mould using A030DL01-3 cuns of Via Color TFT-LCDs of model
Block 9 selects the SD high speeds of the 8GB of plug and pull to block, can be with 20 minutes video records of single stored, 1 He of the master controller
The power end of core cpu processor 7 is respectively connected with power supply module 6, and system obtains image data by camera 4, by video
Encoding and decoding processing carries out format conversion, enters core processor by processor interface resource, and is shown by LCD and SD card
It is stored, the power supply module 6 divides for battery charging and discharging management and battery powered two large divisions, and battery charging and discharging management is main
It is management endoscopic system charging and discharging behavior, charging current can be set automatically.
It is obvious to a person skilled in the art that the present invention is not limited to the details of the above exemplary embodiments, and
And without departing substantially from the spirit or essential attributes of the utility model, it can realize that this practicality is new in other specific forms
Type.Therefore, in all respects, the present embodiments are to be considered as illustrative and not restrictive, this practicality is new
The range of type is indicated by the appended claims rather than the foregoing description, it is intended that containing in the equivalent requirements of the claims will be fallen
All changes in justice and range are embraced therein.Any reference numeral in claim should not be considered as limitation
Involved claim.
Claims (5)
1. a kind of endoscope camera head, including master controller（1）And signal processing circuit（2）, it is characterised in that：The main control
Device（1）Signal end and signal processing circuit（2）It is connected, the signal processing circuit（2）Signal end be connected with video solution
Code chip（3）, the video decoding chip（3）Signal input part be connected with camera（4）, the signal processing circuit（2）
Including power amplifier（S）, the power amplifier（S）Reverse side be connected separately with filter capacitor（C1）With gain impedance
（R1）, the filter capacitor（C1）The other end be connected separately with input resistance（R2）And load resistance（R3）, the input electricity
Resistance（R2）The other end and coil transceiver（A）It is connected, the load resistance（R3）The other end be directly grounded, the load
Resistance（R3）And filter capacitor（C1）Connecting node at be connected with storage capacitor（C2）, the storage capacitor（C2）The other end
With gain impedance（R1）It is connected, the power amplifier（S）The first pin be also associated with adjustable resistance（R4）, described adjustable
Resistance（R4）Adjustable port and power amplifier（S）Power end（VCC）It is connected, the adjustable resistance（R4）The other end with
Power amplifier（S）The 8th pin be connected.
2. a kind of endoscope camera head according to claim 1, it is characterised in that：The gain impedance（R1）With energy storage electricity
Hold（C2）Connecting node at also pass through control line and power amplifier（S）The 6th pin be connected, the power amplifier
（S）In-phase end be directly grounded（GND）.
3. a kind of endoscope camera head according to claim 1, it is characterised in that：The master controller（1）Inside also
It is provided with data collecting card（5）, the data collecting card（5）Signal end be connected at core cpu by signal processing circuit
Manage device（7）.
4. a kind of endoscope camera head according to claim 3, it is characterised in that：The core cpu processor（7）Letter
LCD display module is also respectively connected in number end（8）With SD card memory module（9）.
5. a kind of endoscope camera head according to claim 1, it is characterised in that：The master controller（1）And core cpu
Processor（7）Power end be respectively connected with power supply module（6）.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820135469.XU CN207744072U (en) | 2018-01-26 | 2018-01-26 | A kind of endoscope camera head |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820135469.XU CN207744072U (en) | 2018-01-26 | 2018-01-26 | A kind of endoscope camera head |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207744072U true CN207744072U (en) | 2018-08-17 |
Family
ID=63124232
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820135469.XU Expired - Fee Related CN207744072U (en) | 2018-01-26 | 2018-01-26 | A kind of endoscope camera head |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207744072U (en) |
-
2018
- 2018-01-26 CN CN201820135469.XU patent/CN207744072U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180817 Termination date: 20220126 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |