CN208539653U - A kind of intelligent video analysis instrument - Google Patents
A kind of intelligent video analysis instrument Download PDFInfo
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- CN208539653U CN208539653U CN201821164884.4U CN201821164884U CN208539653U CN 208539653 U CN208539653 U CN 208539653U CN 201821164884 U CN201821164884 U CN 201821164884U CN 208539653 U CN208539653 U CN 208539653U
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Abstract
The utility model discloses a kind of intelligent video analysis instrument, it include: AC power source and battery-backed power source, lotus root is connected to power switching circuit between the AC power source and battery-backed power source, and the power switching circuit includes: ACDC power supply chip, the 4th resistance, the first metal-oxide-semiconductor, the second metal-oxide-semiconductor, third metal-oxide-semiconductor and the 5th resistance；AC power source is converted to DC power supply output by the ACDC power supply chip, and the source electrode of first metal-oxide-semiconductor connects battery-backed power source end, and the grid of the first metal-oxide-semiconductor connects the source electrode of the second metal-oxide-semiconductor；By the way that power switching circuit is arranged, so that AC power source can not automatically switch to storage battery power supply when normal power supply, realize uninterrupted power supply, intelligent video analysis instrument is avoided to generate blank monitoring area, guarantee the normal operation of monitoring work, the power switching circuit uses metal-oxide-semiconductor, low in energy consumption, energy saving simultaneously；The power switching circuit structure is simple, and low in cost, circuit stability is strong, and circuit is easily built.
Description
Technical field
The utility model belongs to video analyzer technical field, and in particular to a kind of intelligent video analysis instrument.
Background technique
Intelligent video analysis instrument use computer picture Visual analysis techniques, by by background in scene and target separate into
And it analyzes and tracks the target occurred in camera scene.User can basis video content analysis function, by not
With presetting different alarm rules in the scene of video camera, once target occurs violating the row of predefined rule in the scene
For, system can automatic alert, work station automatic spring warning message simultaneously issues caution sound, and user can pass through click
Warning message realizes that the scene of alarm is recombinated and taken measures on customs clearance.
Existing public security safeguard management acquires image by the video camera of intelligent video analysis instrument and is monitored in real time, this is taken the photograph
Camera is powered using AC power source, and when AC power source disconnection can not power, video camera will be unable to work normally, and lead to intelligence
Video analyzer generates blank monitoring area, influences to work normally, and brings difficulty to public security organ's acquisition evidence.
Utility model content
To overcome technological deficiency of the existing technology, the utility model discloses a kind of intelligent video analysis instrument, realize
Power supply is uninterrupted, avoids intelligent video analysis instrument because power-off generates blank monitoring area, guarantees the normal of intelligent video analysis instrument
Work.
Technical solution adopted by the utility model to solve its technical problems is a kind of intelligent video analysis instrument, comprising: hands over
Galvanic electricity source and battery-backed power source, lotus root is connected to power switching circuit, the confession between the AC power source and battery-backed power source
Electrical switching circuit includes: ACDC power supply chip, the 4th resistance, the first metal-oxide-semiconductor, the second metal-oxide-semiconductor, third metal-oxide-semiconductor and the 5th resistance；
AC power source is converted to DC power supply output by the ACDC power supply chip, and the source electrode of first metal-oxide-semiconductor connects reserve battery
Power end, the grid of the first metal-oxide-semiconductor connect the source electrode of the second metal-oxide-semiconductor, and the grid of the first metal-oxide-semiconductor is also connected with the first of the 4th resistance
End, the second end ground connection of the 4th resistance, the drain electrode of the first metal-oxide-semiconductor connect power output end, and the source electrode of the second metal-oxide-semiconductor connects ACDC
The output end of power supply chip, the drain electrode of the second metal-oxide-semiconductor connect power output end, the grid connection third metal-oxide-semiconductor of the second metal-oxide-semiconductor
Drain electrode, the source electrode ground connection of third metal-oxide-semiconductor, the grid of third metal-oxide-semiconductor connect the first end of the 4th resistance, the drain electrode of third metal-oxide-semiconductor
Power output end is also connected by the 5th resistance.
Preferably, the chip model of the ACDC power supply chip is TMF0165.
Preferably, step-down rectifier is also connected between the output end of the ACDC power supply chip and the source electrode of the second metal-oxide-semiconductor
Circuit, the step-down rectifying circuit include: first resistor, second resistance and diode；The output end of the ACDC power supply chip
First resistor is connected in series between ground and second resistance, the first resistor connect diode with the common end of second resistance
Anode, the cathode of diode connect the source electrode of the second metal-oxide-semiconductor.
Preferably, capacitor is also connected in series between the anode and ground of the diode.
Preferably, indicating circuit is also connected between the cathode and ground of the diode, the indicating circuit includes shining
Diode and 3rd resistor, the anode of the cathode connection light emitting diode of diode, the cathode of light emitting diode pass through third electricity
Resistance ground connection.
Preferably, the drain electrode of first metal-oxide-semiconductor is also connected with the input terminal of LDO chip, and the output end of LDO chip connects electricity
Source output terminal.
The beneficial effects of the utility model are: by setting power switching circuit, so that AC power source can not supplied normally
Storage battery power supply is automatically switched to when electric, realizes uninterrupted power supply, intelligent video analysis instrument is avoided to generate blank monitoring area, is protected
The normal operation of monitoring work is demonstrate,proved, while the power switching circuit uses metal-oxide-semiconductor, low in energy consumption, energy saving；Power switching electricity
Line structure is simple, low in cost, and circuit stability is strong, and circuit is easily built.
Detailed description of the invention
Fig. 1 is the circuit diagram of power switching circuit described in the utility model.
Appended drawing reference: AC- AC power source, ACDC-ACDC power supply chip, R1- first resistor, R2- second resistance, bis- pole D-
Pipe, C- capacitor, LED- light emitting diode, R3- 3rd resistor, the 4th resistance of R4-, BAT- battery-backed power source, the first MOS of Q1-
Pipe, the second metal-oxide-semiconductor of Q2-, Q3- third metal-oxide-semiconductor, the 5th resistance of R5-, LDO-LDO chip, VOUT- power output end.
Specific embodiment
More detailed description is done to the embodiments of the present invention below in conjunction with attached drawing and appended drawing reference, makes to be familiar with ability
The technology people in domain can implement accordingly after studying this specification carefully.It should be appreciated that specific embodiment described herein is only to solve
The utility model is released, is not used to limit the utility model.
A kind of intelligent video analysis instrument, comprising: AC power source AC and battery-backed power source BAT, the AC power source AC and
Lotus root is connected to power switching circuit between battery-backed power source BAT, the power switching circuit include: ACDC power supply chip ACDC,
4th resistance R4, the first metal-oxide-semiconductor Q1, the second metal-oxide-semiconductor Q2, third metal-oxide-semiconductor Q3 and the 5th resistance R5；The ACDC power supply chip
AC power source AC is converted to DC power supply output by ACDC, and the source electrode of the first metal-oxide-semiconductor Q1 connects battery-backed power source BAT
End, the grid of the first metal-oxide-semiconductor Q1 connect the source electrode of the second metal-oxide-semiconductor Q2, and the grid of the first metal-oxide-semiconductor Q1 is also connected with the 4th resistance R4's
First end, the second end ground connection of the 4th resistance R4, the drain electrode of the first metal-oxide-semiconductor Q1 connect power output end VOUT, the second metal-oxide-semiconductor Q2
Source electrode connection ACDC power supply chip ACDC output end, the drain electrode of the second metal-oxide-semiconductor Q2 connects power output end VOUT, second
The drain electrode of the grid connection third metal-oxide-semiconductor Q3 of metal-oxide-semiconductor Q2, the source electrode ground connection of third metal-oxide-semiconductor Q3, the grid of third metal-oxide-semiconductor Q3 connect
The first end of the 4th resistance R4 is connect, the drain electrode of third metal-oxide-semiconductor Q3 also passes through the 5th resistance R5 connection power output end VOUT；Specifically
, the first metal-oxide-semiconductor Q1 and the second metal-oxide-semiconductor Q2 are PMOS tube, and third metal-oxide-semiconductor Q3 is NMOS tube, and NMOS tube receives high level
Signal conduction, low level signal cut-off；PMOS tube receives low level signal conducting, high level signal cut-off；
If have AC power source AC input, since third metal-oxide-semiconductor Q3 is NMOS tube, the grid of third metal-oxide-semiconductor Q3 is connect at this time
High voltage signal conducting is received, since the conducting of third metal-oxide-semiconductor Q3 is grounded, the grid voltage of the second metal-oxide-semiconductor Q2 is pulled low, and second
Metal-oxide-semiconductor Q2 is PMOS tube, and the grid of the second metal-oxide-semiconductor Q2 receives low voltage signal conducting at this time, and the grid of the first metal-oxide-semiconductor Q1 receives
High voltage signal cut-off, AC power source power to the load as power output end VOUT；
If when AC-less power AC input, the first metal-oxide-semiconductor Q1 is connected at this time, since the conducting of the first metal-oxide-semiconductor Q1 is grounded, this
When third metal-oxide-semiconductor Q3 grid voltage be pulled low, third metal-oxide-semiconductor Q3 is off state, the gate turn-on of the second metal-oxide-semiconductor Q2 at this time
The end battery-backed power source BAT, receive high voltage signal cut-off, at this time battery-backed power source BAT as power output end VOUT to
Load supplying；
The power supply seamless switching between AC power source AC and battery-backed power source BAT is realized by the power switching circuit,
When AC power source AC being avoided to break down, causes to make intelligent video analysis instrument that can not work for being electrically cut off, influence to work normally, together
When the power switching circuit mostly use metal-oxide-semiconductor as switch control pipe, low in energy consumption, energy saving, the circuit structure is simple, cost
It is low.
The chip model of the ACDC power supply chip ACDC is TMF0165；TMF0165 chip is a high integration, height
The PWM+MOSFET of performance two-in-one current mode Off-line SMPS controller.Suitable for charger, power supply adaptor etc.
All kinds of low power Switching Power Supplies.It is encapsulated using DIP8, without adding the power of the exportable 0~36W of radiator.Circuit structure letter
It is single, it is at low cost.With the defencive function that over-voltage, under-voltage, excess temperature, overload, soft start, short circuit etc. are perfect.
Step-down rectifier electricity is also connected between the output end of the ACDC power supply chip ACDC and the source electrode of the second metal-oxide-semiconductor Q2
Road, the step-down rectifying circuit include: first resistor R1, second resistance R2 and diode D；The ACDC power supply chip ACDC's
The public of first resistor R1 and second resistance R2, the first resistor R1 and second resistance R2 is connected in series between output end and ground
The anode of end connection diode D, the cathode of diode D connect the source electrode of the second metal-oxide-semiconductor Q2；The wherein electricity of first resistor R1 and second
Hindering R2 partial pressure reduces the DC level of ACDC power supply chip ACDC output, for the lower metal-oxide-semiconductor of rated supply voltage and load etc.
Device uses；Diode D is for carrying out first time rectification.
Capacitor C is also connected in series between the anode and ground of the diode D；The capacitor C is filter capacitor, in order to obtain
Obtain smoother DC ripple.
Indicating circuit is also connected between the cathode and ground of the diode D, the indicating circuit includes light emitting diode
The anode of the cathode connection Light-emitting diode LED of LED and 3rd resistor R3, diode D, the cathode of Light-emitting diode LED pass through
3rd resistor R3 ground connection；The indicating circuit be used to indicate AC power source AC whether normal power supply, when AC power source AC is normally supplied
When electric, Light-emitting diode LED, which shines, to be indicated, 3rd resistor R3 is current-limiting resistance, shields, avoids Light-emitting diode LED
Punch through damage due to high current, the power supply trouble of staff's AC power source AC can be prompted by the indicating circuit in time.
The drain electrode of the first metal-oxide-semiconductor Q1 is also connected with the input terminal of LDO chip LDO, the output end connection of LDO chip LDO
Power output end VOUT；The LDO chip LDO is linear voltage regulator, stablizes the voltage of battery-backed power source BAT output end.
The above content is the further descriptions made in conjunction with specific preferred embodiment to the utility model, cannot recognize
Determine specific embodiment of the present utility model to be only limited to these instructions.For the common skill of the utility model technical field
For art personnel, the other embodiments obtained in the case where not departing from the technical solution of the utility model be should be included in practical
In novel protection scope.
Claims (6)
1. a kind of intelligent video analysis instrument, it is characterised in that: it include: AC power source (AC) and battery-backed power source (BAT), it is described
Lotus root is connected to power switching circuit between AC power source (AC) and battery-backed power source (BAT), and the power switching circuit includes:
ACDC power supply chip (ACDC), the 4th resistance (R4), the first metal-oxide-semiconductor (Q1), the second metal-oxide-semiconductor (Q2), third metal-oxide-semiconductor (Q3) and
Five resistance (R5)；AC power source (AC) is converted to DC power supply output, the first MOS by the ACDC power supply chip (ACDC)
Manage source electrode connection battery-backed power source (BAT) end of (Q1), the source of the grid connection the second metal-oxide-semiconductor (Q2) of the first metal-oxide-semiconductor (Q1)
Pole, the grid of the first metal-oxide-semiconductor (Q1) are also connected with the first end of the 4th resistance (R4), and the second end of the 4th resistance (R4) is grounded, the
The drain electrode of one metal-oxide-semiconductor (Q1) connects power output end (VOUT), and the source electrode of the second metal-oxide-semiconductor (Q2) connects ACDC power supply chip
(ACDC) drain electrode of output end, the second metal-oxide-semiconductor (Q2) connects power output end (VOUT), and the grid of the second metal-oxide-semiconductor (Q2) connects
The drain electrode of third metal-oxide-semiconductor (Q3), the source electrode ground connection of third metal-oxide-semiconductor (Q3) are connect, the grid of third metal-oxide-semiconductor (Q3) connects the 4th resistance
(R4) first end, the drain electrode of third metal-oxide-semiconductor (Q3) also pass through the 5th resistance (R5) connection power output end (VOUT).
2. a kind of intelligent video analysis instrument as described in claim 1, it is characterised in that: the ACDC power supply chip (ACDC)
Chip model is TMF0165.
3. a kind of intelligent video analysis instrument as described in claim 1, it is characterised in that: the ACDC power supply chip (ACDC)
Step-down rectifying circuit is also connected between output end and the source electrode of the second metal-oxide-semiconductor (Q2), the step-down rectifying circuit includes: first
Resistance (R1), second resistance (R2) and diode (D)；The company of series connection between the output end and ground of the ACDC power supply chip (ACDC)
First resistor (R1) and second resistance (R2) are connect, the first resistor (R1) connects diode with the common end of second resistance (R2)
(D) anode, the source electrode of the cathode connection the second metal-oxide-semiconductor (Q2) of diode (D).
4. a kind of intelligent video analysis instrument as claimed in claim 3, it is characterised in that: the anode and ground of the diode (D)
Between be also connected in series with capacitor (C).
5. a kind of intelligent video analysis instrument as claimed in claim 4, it is characterised in that: the cathode and ground of the diode (D)
Between be also connected with indicating circuit, the indicating circuit includes light emitting diode (LED) and 3rd resistor (R3), diode (D)
Cathode connection light emitting diode (LED) anode, the cathode of light emitting diode (LED) passes through 3rd resistor (R3) ground connection.
6. a kind of intelligent video analysis instrument as described in claim 1, it is characterised in that: the drain electrode of first metal-oxide-semiconductor (Q1)
It is also connected with the input terminal of LDO chip (LDO), the output end of LDO chip (LDO) connects power output end (VOUT).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821164884.4U CN208539653U (en) | 2018-07-23 | 2018-07-23 | A kind of intelligent video analysis instrument |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821164884.4U CN208539653U (en) | 2018-07-23 | 2018-07-23 | A kind of intelligent video analysis instrument |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208539653U true CN208539653U (en) | 2019-02-22 |
Family
ID=65384853
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821164884.4U Expired - Fee Related CN208539653U (en) | 2018-07-23 | 2018-07-23 | A kind of intelligent video analysis instrument |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208539653U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117081029A (en) * | 2023-10-13 | 2023-11-17 | 苏州琨山通用锁具有限公司 | Heavy-current reverse connection preventing and dual-power automatic switching circuit of intelligent lockset |
| CN117115949A (en) * | 2023-10-24 | 2023-11-24 | 苏州琨山通用锁具有限公司 | POE power supply-based high-reliability hidden intelligent door lock |
-
2018
- 2018-07-23 CN CN201821164884.4U patent/CN208539653U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117081029A (en) * | 2023-10-13 | 2023-11-17 | 苏州琨山通用锁具有限公司 | Heavy-current reverse connection preventing and dual-power automatic switching circuit of intelligent lockset |
| CN117081029B (en) * | 2023-10-13 | 2024-04-26 | 苏州琨山通用锁具有限公司 | Heavy-current reverse connection preventing and dual-power automatic switching circuit of intelligent lockset |
| CN117115949A (en) * | 2023-10-24 | 2023-11-24 | 苏州琨山通用锁具有限公司 | POE power supply-based high-reliability hidden intelligent door lock |
| CN117115949B (en) * | 2023-10-24 | 2024-05-03 | 苏州琨山通用锁具有限公司 | POE power supply-based high-reliability hidden intelligent door lock |
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| Date | Code | Title | Description |
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| 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: 20190222 Termination date: 20190723 |