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CN112689354A - LED light modulation device of endoscope - Google Patents

LED light modulation device of endoscope Download PDF

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Publication number
CN112689354A
CN112689354A CN202110084265.4A CN202110084265A CN112689354A CN 112689354 A CN112689354 A CN 112689354A CN 202110084265 A CN202110084265 A CN 202110084265A CN 112689354 A CN112689354 A CN 112689354A
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CN
China
Prior art keywords
brightness
endoscope
main control
control board
led lamp
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Pending
Application number
CN202110084265.4A
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Chinese (zh)
Inventor
邱联浩
张昆鹏
刘浪
吴贺锋
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Zhongshan Micro Vision Medical Technology Co ltd
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Zhongshan Micro Vision Medical Technology Co ltd
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Priority to CN202110084265.4A priority Critical patent/CN112689354A/en
Publication of CN112689354A publication Critical patent/CN112689354A/en
Pending legal-status Critical Current

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    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02BCLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B20/00Energy efficient lighting technologies, e.g. halogen lamps or gas discharge lamps
    • Y02B20/40Control techniques providing energy savings, e.g. smart controller or presence detection

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  • Instruments For Viewing The Inside Of Hollow Bodies (AREA)
  • Endoscopes (AREA)

Abstract

The invention discloses an LED dimming device of an endoscope, comprising: the main control board, the LED lamp and with main control board interconnect's display screen, power module, adapter and digital potentiometer, LED lamp and digital potentiometer control connection, the adapter is used for receiving voice command, triggers the main control board and sends control command, and digital potentiometer is used for receiving main control board control command and changes the circuit resistance, corresponds control LED lamp luminance. The digital potentiometer replaces the traditional multi-path dimming circuit, so that the circuit design is simplified, the reason is conveniently checked when a fault occurs, and the maintenance is convenient; the use of the light adjusting device reduces the physical keys arranged on the handle of the endoscope, prevents the probability of misoperation, and automatically adjusts the brightness to proper brightness according to the brightness and contrast of a real-time image by an automatic adjusting method; the voice regulation method sends out a brightness increase or brightness decrease instruction according to voice, controls the digital potentiometer to change the resistance value of the circuit to realize stepless change of brightness, meets the diagnosis requirement of doctors, and is convenient and practical.

Description

LED light modulation device of endoscope
[ technical field ] A method for producing a semiconductor device
The invention belongs to the technical field of medical instruments, and particularly relates to an LED dimming device of an endoscope.
[ background of the invention ]
The endoscope is used for stretching into the body of a patient to carry out amplification shooting on tissues, a doctor diagnoses by observing the condition of the tissues, and the brightness of the LED lamp at the front end of the endoscope is adjusted to make the shooting clearer, so that the doctor can carry out further accurate diagnosis conveniently; therefore, the existing endoscope is complex in circuit design by designing a plurality of resistance circuits, the brightness is controlled and adjusted to be increased and reduced by designing two keys on the handle of the endoscope, the layout of the keys on the handle is increased, the keys are easy to operate mistakenly when in use, inconvenience in use is caused, the brightness can only be increased and reduced according to the fixed resistance value during adjustment of the keys, and stepless adjustment of the brightness cannot be achieved.
[ summary of the invention ]
In order to solve the existing problems in the background art, the invention provides the LED dimming device of the endoscope, which is simple in design, can realize real-time adjustment of the brightness of an LED lamp through automatic dimming and voice interactive control, has stepless brightness increase and reduction range, and improves the convenience and the practicability of the endoscope.
The invention adopts the following technical scheme:
an LED dimming device of an endoscope, comprising:
the LED lamp is connected with the digital potentiometer in a control mode, the pickup is used for receiving voice instructions and triggering the main control board to send control instructions, and the digital potentiometer is used for receiving the main control board control instructions to change the resistance of a circuit and correspondingly controls the brightness of the LED lamp.
Further, the LED light adjusting device of the endoscope, the image processing module and the CMOS chip are sequentially connected, and the LED light adjusting device of the endoscope is connected with the main control board.
Furthermore, the device also comprises an HDMI/DVI output interface and a CVBS/VGA output interface.
Furthermore, a self-recovery fuse is connected between the LED lamp and the digital potentiometer.
Further, the LED dimming method of the endoscope comprises the following steps:
s1: the LED lamp is started at initial default brightness, an optical lens contained in a CMOS chip shoots human tissues to generate corresponding optical signals, and the optical signals are converted to form electric signals;
s2, the image processing module receives the electric signal of the CMOS chip and generates MJPEG or YUY2 video format data after processing;
s3: an LED dimming device of an endoscope electrically isolates an image processing module from a main control board, and a display screen receives video format data for processing and displaying in real time;
s4: the sound pick-up receives a voice command, recognizes relevant words of 'increasing/decreasing brightness' in the voice command, generates a control command for increasing or decreasing the brightness of the LED lamp, the main control panel receives the control command and then sends an adjusting command to the digital potentiometer, the digital potentiometer receives the control command and then changes a resistance value, the brightness of the LED lamp is correspondingly and automatically adjusted, the actual current value and the critical current value of the LED lamp are compared, when the actual current value and the critical current value exceed the critical current value, the self-recovery fuse is fused, and open-circuit protection is started.
Further, step S4 includes S41: the main control board calculates brightness and contrast according to the display screen image, the brightness and contrast of the real-time image are compared with the set brightness and contrast, the comparison result is sent to the main control board for identification processing, and the main control board sends a control command to adaptively adjust the brightness of the LED lamp.
The invention has the following beneficial effects:
the light modulation device is applied to a medical endoscope, and a digital potentiometer replaces a traditional multi-path light modulation circuit, so that the circuit design is simplified, the reason examination is convenient when a fault occurs, and the maintenance is convenient; the use of the light adjusting device has two convenient light adjusting methods, namely an automatic adjusting method and a voice adjusting method, so that the physical keys arranged on the handle of the endoscope are reduced, the probability of misoperation is prevented, and the automatic adjusting method is automatically adjusted to proper brightness according to the brightness and the contrast of a real-time image; the voice regulation method sends out a brightness increase or brightness decrease instruction according to voice, controls the digital potentiometer to change the resistance value of the circuit to realize stepless brightness change, meets the diagnosis requirement of a doctor by shooting with the most appropriate brightness, and is convenient and practical.
[ description of the drawings ]
FIG. 1 is a schematic connection diagram of an LED light-adjusting device of an endoscope according to the present invention;
fig. 2 is a schematic diagram of the connection between the isolation circuit and the main control board and the image processing module.
[ detailed description ] embodiments
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not limiting of the invention.
Fig. 1 is an LED dimming device of an endoscope designed by the present invention, which is applied to a medical endoscope to achieve the purpose of adjusting and controlling the brightness to be moderate, so as to facilitate examination and diagnosis of doctors.
The dimming device specifically includes: the LED lamp comprises a main control board 1, an LED lamp 2, a display screen 3, a power module 4, a sound pick-up 5 and a digital potentiometer 6 which are connected with each other through the main control board 1, and further comprises an isolation circuit 7, an image processing module 8 and a CMOS chip 9 which are connected in sequence, wherein the isolation circuit 7 is connected with the main control board 1, the LED lamp 2 is in control connection with the digital potentiometer 6, the sound pick-up 5 is used for receiving a voice instruction and triggering the main control board 1 to send out a control instruction, the digital potentiometer 6 is used for receiving the control instruction of the main control board 1 to change the resistance of a circuit and correspondingly control the brightness of the LED lamp 2, a user sends out the voice instruction and generally recognizes that a word eye is 'brightness increase or decrease', the sound pick-up 5 recognizes that the main control board 1 sends out a corresponding control instruction, and finally the digital potentiometer 6 changes the resistance and changes the passing current of the LED, in order to prevent the damage of the excessive current, a self-recovery fuse 10 is connected between the LED lamp 2 and the digital potentiometer 6, and the fuse is fused when the current value is excessive, so that the circuit is disconnected for automatic protection, and the use safety is improved.
In addition, an HDMI/DVI output interface 11 and a CVBS/VGA output interface 12 are arranged to share and connect data of the endoscope and an external terminal, so that diversified equipment matching participation work is met, and the universality is improved.
Referring specifically to fig. 2, the isolation circuit 7 includes a DC-DC power module 71 and an isolation chip 72, preferably, the isolation chip 72 is an ICE08USBX type chip, the DC-DC power module 71 is a H0505S-2WR2 type power control chip, the DC-DC power module 71 has a VBUS first pin terminal and a VBUS second pin terminal, wherein the VBUS first pin terminal and the VBUS second pin terminal are respectively connected to an I/O pin on the main control board 1 and a VBUS pin on the image processing module 8, a VDD pin, a UD-pin, and a UD + pin on one end of the isolation chip 72 are respectively connected to a corresponding I/O pin on the main control board 1, a D0-pin and a D0+ pin on the other end of the isolation chip 72 are respectively connected to a D-GND pin and a D + pin on the image processing module 8, and the DC-DC power module 71 is connected to a 1 pin, a pin on the isolation chip 72, The GND2 pins are all connected to ground.
After the main control board 1 is powered on, the +5V input voltage is input into the DC-DC power module 71, the +5V output voltage is converted into the +5V output voltage and is provided for the isolation chip 72 and the image processing module 8, the CMOS chip 97 comprises an optical lens, an optical signal is converted into an electrical signal after the internal tissue of a human body is shot, the image processing module 8 converts the electrical signal into a corresponding MJPEG or YUY2 video format file, and further, the DC-DC power module 71 electrically separates the input voltage from the output voltage, so that a direct electrical connection circuit of a data signal before and after conversion is isolated, if the mobile terminal leaks electricity, the direct interference to an output circuit can cause a click accident, a great potential safety hazard exists, and the potential safety hazard is well solved through the isolation circuit 7.
It can be seen that the digital potentiometer 6 replaces the traditional multi-path dimming circuit, so that the circuit design is simpler, the use is relatively convenient, meanwhile, the arrangement of a plurality of physical circuits is omitted, the misoperation caused by physical keys is avoided, and the accurate use by doctors is facilitated.
The specific dimming method applied to the dimming device comprises the following steps:
s1: the LED lamp 2 is started at the initial default brightness, an optical lens contained in the CMOS chip 9 shoots human tissues to generate corresponding optical signals, and the corresponding optical signals are converted to form electric signals;
s2, the image processing module 8 receives the electric signal of the CMOS chip 9, and generates MJPEG or YUY2 video format data after processing;
s3: the isolation circuit 7 electrically isolates the image processing module 8 from the main control panel 1, and the display screen 3 receives video format data for processing and displaying in real time;
s4: the sound pick-up 5 receives a voice command, recognizes relevant words of 'increasing/decreasing brightness' in the voice command, generates a control command for increasing or decreasing the brightness of the LED lamp 2, the main control panel 1 sends an adjusting command to the digital potentiometer 6 after receiving the control command, the digital potentiometer 6 changes a resistance value after receiving the control command, the brightness of the LED lamp 2 is correspondingly and automatically adjusted, the actual current value and the critical current value of the LED lamp 2 are compared, the self-recovery fuse 10 is fused when the critical current value is exceeded, and open-circuit protection is started.
Further, step S4 includes S41: the main control board 1 calculates brightness and contrast according to the display screen 3 image, the brightness and contrast of the real-time image are compared with the set brightness and contrast, the comparison result is sent to the main control board 1 for identification processing, and the main control board 1 sends a control instruction to adaptively adjust the brightness of the LED lamp 2.
Therefore, the brightness of the LED lamp 2 can be adjusted through two modes of automatic induction adjustment and voice adjustment, so that the LED lamp is simplified in use and is practical and reliable.
The invention has the advantages that:
the light modulation device is applied to a medical endoscope, and a digital potentiometer replaces a traditional multi-path light modulation circuit, so that the circuit design is simplified, the reason examination is convenient when a fault occurs, and the maintenance is convenient; the use of the light adjusting device has two convenient light adjusting methods, namely an automatic adjusting method and a voice adjusting method, so that the physical keys arranged on the handle of the endoscope are reduced, the probability of misoperation is prevented, and the automatic adjusting method is automatically adjusted to proper brightness according to the brightness and the contrast of a real-time image; the voice regulation method sends out a brightness increase or brightness decrease instruction according to voice, controls the digital potentiometer to change the resistance value of the circuit to realize stepless brightness change, meets the diagnosis requirement of a doctor by shooting with the most appropriate brightness, and is convenient and practical.
It will be appreciated by those skilled in the art that the invention may be embodied in other specific forms without departing from the spirit or essential characteristics thereof. The embodiments disclosed above are therefore to be considered in all respects as illustrative and not restrictive. All changes which come within the scope of or equivalence to the invention are intended to be embraced therein.

Claims (6)

1. An LED dimming device for an endoscope, comprising:
the LED lamp is connected with the digital potentiometer in a control mode, the pickup is used for receiving voice instructions and triggering the main control board to send control instructions, and the digital potentiometer is used for receiving the main control board control instructions to change the resistance of a circuit and correspondingly controls the brightness of the LED lamp.
2. The LED dimming device of an endoscope according to claim 1, further comprising an endoscope LED dimming device, an image processing module and a CMOS chip connected in sequence, wherein the endoscope LED dimming device is connected to the main control board.
3. An LED dimming device for an endoscope, as defined in claim 1, further comprising an HDMI/DVI output interface and a CVBS/VGA output interface.
4. An LED dimming device for an endoscope as defined in claim 2, wherein a self-recovery fuse is connected between the LED lamp and the digital potentiometer.
5. An LED dimming method for an endoscope, comprising the steps of:
s1: the LED lamp is started at initial default brightness, an optical lens contained in a CMOS chip shoots human tissues to generate corresponding optical signals, and the optical signals are converted to form electric signals;
s2, the image processing module receives the electric signal of the CMOS chip and generates MJPEG or YUY2 video format data after processing;
s3: an LED dimming device of an endoscope electrically isolates an image processing module from a main control board, and a display screen receives video format data for processing and displaying in real time;
s4: the sound pick-up receives a voice command, recognizes relevant words of 'increasing/decreasing brightness' in the voice command, generates a control command for increasing or decreasing the brightness of the LED lamp, the main control panel receives the control command and then sends an adjusting command to the digital potentiometer, the digital potentiometer receives the control command and then changes a resistance value, the brightness of the LED lamp is correspondingly and automatically adjusted, the actual current value and the critical current value of the LED lamp are compared, when the actual current value and the critical current value exceed the critical current value, the self-recovery fuse is fused, and open-circuit protection is started.
6. The LED dimming method of an endoscope according to claim 5, wherein the step S4 further comprises
S41: the main control board calculates brightness and contrast according to the display screen image, the brightness and contrast of the real-time image are compared with the set brightness and contrast, the comparison result is sent to the main control board for identification processing, and the main control board sends a control command to adaptively adjust the brightness of the LED lamp.
CN202110084265.4A 2021-01-21 2021-01-21 LED light modulation device of endoscope Pending CN112689354A (en)

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Application Number Priority Date Filing Date Title
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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112991333A (en) * 2021-04-21 2021-06-18 强基(上海)医疗器械有限公司 Image processing method and system based on voice analysis in endoscopic surgery

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105708407A (en) * 2016-01-18 2016-06-29 樊大立 Wearable voice recognition endoscope control system and wearable equipment
CN207884934U (en) * 2018-01-03 2018-09-18 余姚舜宇智能光学技术有限公司 Brightness regulating circuit based on bus marco and photographic device
CN208693235U (en) * 2018-03-09 2019-04-05 珠海视新医用科技有限公司 A kind of medical endoscope image processing system
CN212231785U (en) * 2020-06-30 2020-12-25 北京博清科技有限公司 Electronic equipment and adaptive dimming device thereof
CN214177608U (en) * 2021-01-21 2021-09-10 中山市微视医用科技有限公司 LED light modulation device of endoscope

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105708407A (en) * 2016-01-18 2016-06-29 樊大立 Wearable voice recognition endoscope control system and wearable equipment
CN207884934U (en) * 2018-01-03 2018-09-18 余姚舜宇智能光学技术有限公司 Brightness regulating circuit based on bus marco and photographic device
CN208693235U (en) * 2018-03-09 2019-04-05 珠海视新医用科技有限公司 A kind of medical endoscope image processing system
CN212231785U (en) * 2020-06-30 2020-12-25 北京博清科技有限公司 Electronic equipment and adaptive dimming device thereof
CN214177608U (en) * 2021-01-21 2021-09-10 中山市微视医用科技有限公司 LED light modulation device of endoscope

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112991333A (en) * 2021-04-21 2021-06-18 强基(上海)医疗器械有限公司 Image processing method and system based on voice analysis in endoscopic surgery

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