CN208768152U - Video camera - Google Patents
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- CN208768152U CN208768152U CN201820681319.9U CN201820681319U CN208768152U CN 208768152 U CN208768152 U CN 208768152U CN 201820681319 U CN201820681319 U CN 201820681319U CN 208768152 U CN208768152 U CN 208768152U
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Abstract
The utility model discloses a kind of video cameras, including microprocessor, infrared detector, photosensitive sensor, signal amplification circuit, A/D converter, camera, image processor, synchronizing separator circuit, motor-drive circuit, motor, display driver circuit, display screen, delay switch circuit, light compensating lamp, wireless communication module and power supply circuit；Power supply circuit includes first resistor, second resistance, 3rd resistor, the 4th resistance, the 5th resistance, first diode, the second diode, the first triode, the second triode, the first metal-oxide-semiconductor, the first inductance and battery, one end of 4th resistance is connect with microprocessor, the other end of 4th resistance is connect with one end of the collector of the first triode, the anode of the second diode and the 5th resistance respectively, the other end of 5th resistance is grounded, and the cathode of the second diode is connect with the base stage of the second triode.The utility model circuit structure is relatively simple, cost is relatively low, circuit safety and reliability are higher.
Description
Technical field
The utility model relates to domain of communication equipment, in particular to a kind of video camera.
Background technique
The basic principle of camera operation is that optical image signal is changed into electric signal, in order to store or transmit.
When we shoot an object, the light reflected on this object makes it focus on picture pick-up device by the shots of video camera
On light-receiving surface (such as target surface of pick-up tube), then light is changed into get " vision signal " has been arrived by picture pick-up device by electric energy.Light
Electric signal is very faint, need to be amplified by pre-arcing road, is handled and is adjusted using various circuits, the mark finally obtained
Calibration signal can be sent on the recording mediums such as video camera and record, or propagates or be sent on monitor by broadcasting system and show
Out.The internal circuit configuration of traditional video camera is complex, and hardware cost is higher.In addition, due to traditional video camera
Internal circuit configuration lacks corresponding circuit protection function, causes the safety and reliability of circuit not high.
Utility model content
The technical problem to be solved by the present invention is in view of the above drawbacks of the prior art, provide a kind of circuit knot
Structure is relatively simple, cost is relatively low, circuit safety and the higher video camera of reliability.
The technical scheme adopted by the utility model to solve the technical problem is as follows: constructing a kind of video camera, including micro process
Device, infrared detector, photosensitive sensor, signal amplification circuit, A/D converter, camera, image processor, separated in synchronization electricity
Road, motor-drive circuit, motor, display driver circuit, display screen, delay switch circuit, light compensating lamp, wireless communication module and confession
Circuit, the infrared detector are connect by the signal amplification circuit with the A/D converter, the photosensitive sensor and
A/D converter connection, the A/D converter are connect with the microprocessor, the camera, image processor with it is synchronous
Split circuit is connect with the microprocessor, and described image processor and synchronizing separator circuit also connect with the camera
Connect, the motor-drive circuit, display driver circuit and delay switch circuit are connect with the microprocessor, the motor with
The motor-drive circuit connection, the display screen are connect with the display driver circuit, and the light compensating lamp is opened with the delay
Circuit connection is closed, the wireless communication module is connect with the microprocessor, and the power supply circuit is connect with the microprocessor；
The power supply circuit includes first resistor, second resistance, 3rd resistor, the 4th resistance, the 5th resistance, the one or two pole
Pipe, the second diode, the first triode, the second triode, the first metal-oxide-semiconductor, the first inductance and battery, the one of the 4th resistance
End connect with the microprocessor, the other end of the 4th resistance respectively with the collector of first triode, the two or two
The connection of one end of the anode of pole pipe and the 5th resistance, the other end ground connection of the 5th resistance, the cathode of second diode
It is connect with the base stage of second triode, the emitter ground connection of second triode, the base stage point of first triode
It is not connect with one end of the cathode of the first diode and first resistor, the plus earth of the first diode, described
The emitter of one triode respectively with the other end of the first resistor, one end of second resistance, one end of the first inductance and electricity
The anode connection in pond, the other end of second resistance grid with the collector of second triode and the first metal-oxide-semiconductor respectively
Pole connection, the other end of first inductance are connect with the source electrode of first metal-oxide-semiconductor, and the drain electrode of first metal-oxide-semiconductor passes through
3rd resistor ground connection, the cathode ground connection of the battery, the model S-123T of second diode, the resistance of the 5th resistance
Value is 36k Ω.
In video camera described in the utility model, the power supply circuit further includes first capacitor, the first capacitor
One end is connect with the collector of second triode, and the grid of the other end of the first capacitor and first metal-oxide-semiconductor connects
It connects, the capacitance of the first capacitor is 260pF.
In video camera described in the utility model, the power supply circuit further includes the second capacitor, second capacitor
One end is connect with the anode of second diode, and the collector of the other end of second capacitor and first triode connects
It connects, the capacitance of second capacitor is 470pF.
In video camera described in the utility model, first triode is PNP type triode, second triode
For NPN type triode, first metal-oxide-semiconductor is P-channel metal-oxide-semiconductor.
In video camera described in the utility model, the wireless communication module is bluetooth module, WIFI module, GSM mould
Block, GPRS module, CDMA module, CDMA200 module, WCDMA module, TD-SCDMA module, Zigbee module or LoRa module.
Implement the utility model video camera, have the advantages that due to be equipped with microprocessor, infrared detector,
Photosensitive sensor, signal amplification circuit, A/D converter, camera, image processor, synchronizing separator circuit, motor driven electricity
Road, motor, display driver circuit, display screen, delay switch circuit, light compensating lamp, wireless communication module and power supply circuit, power supply electricity
Road includes first resistor, second resistance, 3rd resistor, the 4th resistance, the 5th resistance, first diode, the second diode, first
Triode, the second triode, the first metal-oxide-semiconductor, the first inductance and battery, inside of the power supply circuit relative to traditional video camera
Circuit structure, the component used is less, can reduce hardware cost in this way, in addition, the second diode and the 5th resistance are equal
For carrying out current-limiting protection, therefore circuit structure is relatively simple, cost is relatively low, the safety and reliability of circuit is higher.
Detailed description of the invention
In order to illustrate the embodiment of the utility model or the technical proposal in the existing technology more clearly, below will be to embodiment
Or attached drawing needed to be used in the description of the prior art is briefly described, it should be apparent that, the accompanying drawings in the following description is only
It is some embodiments of the utility model, for those of ordinary skill in the art, in the premise not made the creative labor
Under, it is also possible to obtain other drawings based on these drawings.
Fig. 1 is the structural schematic diagram in the utility model video camera one embodiment；
Fig. 2 is the circuit diagram of power supply circuit in the embodiment.
Specific embodiment
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
Every other embodiment obtained, fall within the protection scope of the utility model.
In the utility model video camera embodiment, the structural schematic diagram of the video camera is as shown in Figure 1.In Fig. 1, the camera shooting
Machine includes microprocessor 1, infrared detector 2, photosensitive sensor 3, signal amplification circuit 4, A/D converter 5, camera 6, image
Processor 7, synchronizing separator circuit 8, motor-drive circuit 9, motor 10, display driver circuit 11, display screen 12, delay switch electricity
Road 13, light compensating lamp 14, wireless communication module 15 and power supply circuit 16, wherein infrared detector 2 by signal amplification circuit 4 with
A/D converter 5 connects, and photosensitive sensor 3 is connect with A/D converter 5, and A/D converter 5 is connect with microprocessor 1, camera 6,
Image processor 7 and synchronizing separator circuit 8 are connect with microprocessor 1, image processor 7 and synchronizing separator circuit 8 also with
Camera 6 connects, and motor-drive circuit 9, display driver circuit 9 and delay switch circuit 13 are connect with microprocessor 1, motor
10 connect with motor-drive circuit 9, and display screen 12 is connect with display driver circuit 11, and light compensating lamp 14 and delay switch circuit 13 connect
It connects, wireless communication module 15 is connect with microprocessor 1, and power supply circuit 16 is connect, for powering with microprocessor 1.
In the present embodiment, imaging environment is detected by setting infrared detector 2 and photosensitive sensor 3, it can be certainly
Dynamic control camera 6 works, operate with it is more convenient, when infrared detector 2 has detected invader, while light sensor
Device 3 detects ambient light, and when ambient light takes pictures brightness lower than setting, microprocessor 1 controls 6 He of camera simultaneously
Light compensating lamp 14 starts, and is taken pictures by light compensating lamp 14 for camera 6 and carries out light filling, improves effect of taking pictures, right by image processor 7
The picture taken pictures is handled, and is chased after to control signal, control motor-drive circuit 9 is generated to target according to processing result
Track, and shown by the image that motor-drive circuit 9 controls 12 pairs of display screen detections, facilitate monitoring personnel to check.
The utility model is particularly suitable for night monitoring, is that microprocessor 1 provides wake-up signal by infrared detector 2,
The infrared signal that infrared detector 2 detects is faint analog signal, is put by 4 pairs of detection signals of signal amplification circuit
Greatly, the analog signal of amplification is then converted to digital signal by A/D converter 5 to export to microprocessor 1, then passes through light
Dependent sensor 3 carries out the detection of ambient light, and when daylight is stronger, delay switch circuit 13 is off-state, infrared inspection
When survey device 2 has detected invader, the starting of camera 6 is directly controlled, image information collecting is carried out.
When detecting that camera 6 starts, starting control signal is transmitted to microprocessor 1, micro- place by synchronizing separator circuit 8
Reason device 1 controls delay switch circuit 13 and controls light compensating lamp 14, so that it is same that camera 6, which is taken pictures with the starting of light compensating lamp 14,
Step not only provides guarantee, while the moment starting that light compensating lamp 14 is taken pictures in camera 6 to the light of taking pictures of picture in this way, other
Time is off-state, energy saving.
The video camera can realize wireless connection by wireless communication module 15 and the hand-held terminal device of supervisor, just
Information is checked in timely.
It is noted that wireless communication module 15 can be bluetooth module, WIFI module, GSM mould in the present embodiment
Block, GPRS module, CDMA module, CDMA200 module, WCDMA module, TD-SCDMA module, Zigbee module or LoRa module
Deng.By a variety of wireless communication modes, it can not only increase the flexibility of communication modes, moreover it is possible to meet different user and different fields
The demand of conjunction.When in particular by LoRa module, farther out, and communication performance is relatively stable for communication distance, is suitable for communication
The higher occasion of quality requirement.
Fig. 2 is the circuit diagram of power supply circuit in the present embodiment, in Fig. 2, the power supply circuit 16 include first resistor R1,
Second resistance R2,3rd resistor R3, the 4th resistance R4, the 5th resistance R5, first diode D1, the second diode D2, the one or three
Pole pipe Q1, the second triode Q2, the first metal-oxide-semiconductor M1, the first inductance L1 and battery BAT, wherein one end of the 4th resistance R4 with it is micro-
Processor 1 connect, the other end of the 4th resistance R4 respectively with the collector of the first triode Q1, the second diode D2 anode and
One end of 5th resistance R5 connects, the other end ground connection of the 5th resistance R5, the cathode of the second diode D2 and the second triode Q2
Base stage connection, the emitter ground connection of the second triode Q2, the base stage of the first triode Q1 yin with first diode D1 respectively
Pole is connected with one end of first resistor R1, the plus earth of first diode D1, and the emitter of the first triode Q1 is respectively with
The anode connection of the other end of one resistance R1, one end of second resistance R2, one end of the first inductance L1 and battery BAT, the second electricity
The other end of resistance R2 is connect with the grid of the collector of the second triode Q2 and the first metal-oxide-semiconductor M1 respectively, and the first inductance L1's is another
One end is connect with the source electrode of the first metal-oxide-semiconductor M1, and the drain electrode of the first metal-oxide-semiconductor M1 is grounded by 3rd resistor R3, the cathode of battery BAT
Ground connection.
The internal circuit configuration of the power supply circuit 16 relative to traditional video camera, the component used is less, circuit
Structure is relatively simple, can reduce hardware cost in this way.In addition, the second diode D2 is Current Limiting Diodes, for the two or three
The collector current of pole pipe Q2 carries out current-limiting protection.5th resistance R5 is current-limiting resistance, for the current collection to the first triode Q1
Electrode current carries out current-limiting protection, therefore the safety and reliability of circuit is higher.It is noted that in the present embodiment, second
The resistance value of the model S-123T, the 5th resistance R5 of diode D2 are 36k Ω, certainly, in practical applications, the second diode D2
There can also be the diode of similar functions using other models, the resistance value of the 5th resistance R5 can also be carried out according to circumstances accordingly
Adjustment.
In the present embodiment, the first triode Q1 be PNP type triode, the second triode Q2 be NPN type triode, first
Metal-oxide-semiconductor M1 is P-channel metal-oxide-semiconductor.Certainly, in practical applications, the first triode Q1 may be NPN type triode, and the two or three
Pole pipe Q2 may be PNP type triode, and the first metal-oxide-semiconductor M1 may be N-channel MOS pipe, but at this moment the structure of circuit is also wanted
Accordingly change.
In the present embodiment, which further includes first capacitor C1, one end of first capacitor C1 and the second triode
The collector of Q2 connects, and the other end of first capacitor C1 is connect with the grid of the first metal-oxide-semiconductor M1.First capacitor C1 is coupling electricity
Hold, for preventing the interference between the first metal-oxide-semiconductor M1 and the second triode Q2, to further enhance the safety of circuit and reliable
Property.It is noted that the capacitance of first capacitor C1 is 260pF in the present embodiment, certainly, in practical applications, the first electricity
The capacitance for holding C1 can adjust accordingly as the case may be.
In the present embodiment, which further includes one end and the second diode of the second capacitor C2, the second capacitor C2
The anode of D2 connects, and the other end of the second capacitor C2 is connect with the collector of the first triode Q1.Second capacitor C2 is coupling electricity
Hold, for preventing the interference between the first triode Q1 and the second triode Q2, with further enhance circuit safety and
Reliability.It is noted that the capacitance of the second capacitor C2 is 470pF in the present embodiment, certainly, in practical applications, the
The capacitance of two capacitor C2 to adjust accordingly as the case may be.
In short, in the present embodiment, which is used
Component is less, and circuit structure is relatively simple, can reduce hardware cost in this way.In addition, being equipped with current limliting in the power supply circuit 16
Diode and current-limiting resistance, therefore the safety and reliability of circuit is higher.
The above is only the preferred embodiment of the utility model only, is not intended to limit the utility model, all at this
Within the spirit and principle of utility model, any modification, equivalent replacement, improvement and so on should be included in the utility model
Protection scope within.
Claims (5)
1. a kind of video camera, which is characterized in that including microprocessor, infrared detector, photosensitive sensor, signal amplification circuit,
A/D converter, camera, image processor, synchronizing separator circuit, motor-drive circuit, motor, display driver circuit, display
Screen, delay switch circuit, light compensating lamp, wireless communication module and power supply circuit, the infrared detector are amplified by the signal
Circuit is connect with the A/D converter, and the photosensitive sensor is connect with the A/D converter, the A/D converter with it is described
Microprocessor connection, the camera, image processor and synchronizing separator circuit are connect with the microprocessor, described image
Processor and synchronizing separator circuit are also connect with the camera, the motor-drive circuit, display driver circuit and delay
Switching circuit is connect with the microprocessor, and the motor is connect with the motor-drive circuit, the display screen with it is described
Display driver circuit connection, the light compensating lamp are connect with the delay switch circuit, the wireless communication module and micro- place
Device connection is managed, the power supply circuit is connect with the microprocessor；
The power supply circuit include first resistor, second resistance, 3rd resistor, the 4th resistance, the 5th resistance, first diode,
Second diode, the first triode, the second triode, the first metal-oxide-semiconductor, the first inductance and battery, one end of the 4th resistance
Connect with the microprocessor, the other end of the 4th resistance respectively with the collector of first triode, the two or two pole
One end of the anode of pipe and the 5th resistance connection, the 5th resistance the other end ground connection, the cathode of second diode with
The base stage of second triode connects, the emitter ground connection of second triode, the base stage difference of first triode
It is connect with one end of the cathode of the first diode and first resistor, the plus earth of the first diode, described first
The emitter of triode respectively with the other end of the first resistor, one end of second resistance, one end of the first inductance and battery
Anode connection, the other end of the second resistance grid with the collector of second triode and the first metal-oxide-semiconductor respectively
Connection, the other end of first inductance connect with the source electrode of first metal-oxide-semiconductor, and the drain electrode of first metal-oxide-semiconductor passes through the
Three resistance eutral groundings, the cathode ground connection of the battery, the model S-123T of second diode, the resistance value of the 5th resistance
For 36k Ω.
2. video camera according to claim 1, which is characterized in that the power supply circuit further includes first capacitor, and described
One end of one capacitor is connect with the collector of second triode, the other end of the first capacitor and first metal-oxide-semiconductor
Grid connection, the capacitance of the first capacitor is 260pF.
3. video camera according to claim 2, which is characterized in that the power supply circuit further includes the second capacitor, and described
One end of two capacitors is connect with the anode of second diode, the other end of second capacitor and first triode
Collector connection, the capacitance of second capacitor are 470pF.
4. according to claim 1 to video camera described in 3 any one, which is characterized in that first triode is positive-negative-positive three
Pole pipe, second triode are NPN type triode, and first metal-oxide-semiconductor is P-channel metal-oxide-semiconductor.
5. according to claim 1 to video camera described in 3 any one, which is characterized in that the wireless communication module is bluetooth
Module, WIFI module, gsm module, GPRS module, CDMA module, CDMA200 module, WCDMA module, TD-SCDMA module,
Zigbee module or LoRa module.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820681319.9U CN208768152U (en) | 2018-05-07 | 2018-05-07 | Video camera |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820681319.9U CN208768152U (en) | 2018-05-07 | 2018-05-07 | Video camera |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208768152U true CN208768152U (en) | 2019-04-19 |
Family
ID=66126113
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820681319.9U Expired - Fee Related CN208768152U (en) | 2018-05-07 | 2018-05-07 | Video camera |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208768152U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111239342A (en) * | 2020-02-11 | 2020-06-05 | 北京知天地环境科技有限公司 | Ecological monitoring vehicle |
-
2018
- 2018-05-07 CN CN201820681319.9U patent/CN208768152U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111239342A (en) * | 2020-02-11 | 2020-06-05 | 北京知天地环境科技有限公司 | Ecological monitoring vehicle |
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20190419 Termination date: 20200507 |