CN109510968A - Street monitor with dust reduction capability - Google Patents
Street monitor with dust reduction capability Download PDFInfo
- Publication number
- CN109510968A CN109510968A CN201811178248.1A CN201811178248A CN109510968A CN 109510968 A CN109510968 A CN 109510968A CN 201811178248 A CN201811178248 A CN 201811178248A CN 109510968 A CN109510968 A CN 109510968A
- Authority
- CN
- China
- Prior art keywords
- air
- air compressor
- timer
- dust
- monitor
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
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Classifications
-
- 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
-
- 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
Abstract
The present invention relates to a kind of street monitor with dust reduction capability, it includes monitor, filter lid, dust-proof back cover, connecting terminal, ceiling, adjuster, pedestal, it further includes having air compressor, the gas outlet of the air compressor is connected with outgassing nozzle by tracheae, and the venthole inclination of the outgassing nozzle is covered towards the optical filtering；The air compressor passes through constant time lag circuit connection to power supply, the constant time lag circuit includes the timer and delay holding circuit by setting period output electric signal, power down after the delay holding circuit is connected to the air compressor and power supply and power-up state is maintained to set duration after the electric signal for receiving the timer output.The present invention generates high pressure draught by air compressor timing and blows to the optical filtering lid, covers the dust being stained with to remove the optical filtering, solves the problems, such as street monitor because being stained with dust influences image-capturing resolution.
Description
Technical field
The present invention relates to monitor, in particular to a kind of street monitor with dust reduction capability.
Background technique
Based on road monitoring is monitored with quick, monitoring point is distributed in wagon flow, the stream of people compares the intersection of concentration, emphasis
Road traffic situation is uploaded to road monitoring command centre by image transmitting channel by section in real time, and center operator on duty can
To understand each region pavement behavior in time accordingly, to adjust each crossing vehicle flow, it is ensured that traffic is unobstructed.To monitoring road surface vehicle
Situation violating the regulations, can find and arrange processing road traffic accident etc. in time, and can be all kinds of cases such as traffic, public security
Detection provide technical support, greatly improve the level and efficiency of public security organ's law enforcement.
To take clearly picture, usually can all consider the dustproof design of monitor, it is general be designed as increasing it is dust-proof
Cover carrys out blocks dust rainwater etc..Although this measure plays certain effect, with the extension of use time, monitor
Dust is still inevitably stained with outside filter glass, hence it is evident that reduce the clarity of shooting, in some instances it may even be possible to occur what shooting obscured
Situation.Therefore, the dust-proof problem of monitor still fails thoroughly to solve.
Summary of the invention
The present invention provides a kind of street monitor with dust reduction capability, for solving street monitor because being stained with dust
The problem of influencing image-capturing resolution.
In order to solve the above-mentioned technical problem, the technical solution of the present invention is as follows:
A kind of street monitor with dust reduction capability comprising monitor, filter lid, dust-proof back cover, connecting terminal, top
Canopy, adjuster, pedestal, the external screw thread of the monitor and the internal screw thread clearance fit of optical filtering lid inner wall, the optical filtering lid are vertical
It is fixed on the left side of dust-proof back cover and is parallel to each other, the connecting terminal glue connection is in the right side of dust-proof back cover, the ceiling
It is fixed by screws in the top of monitor outer wall, the bottom of the adjuster and the movable block of base top are mechanically connected, institute
State the bottom that adjuster is bolted on monitor；It further includes an air compressor, the air compressor have into
The gas outlet of port and gas outlet, the air compressor is connected with outgassing nozzle by tracheae, installs on the tracheae limited
Pressure valve, the pressure limiting air valve is connected when the endotracheal air pressure is greater than the set value, the outlet of the outgassing nozzle
Hole inclination is covered towards the optical filtering.The air compressor passes through constant time lag circuit connection to power supply, the constant time lag electricity
Road includes the timer and delay holding circuit by setting period output electric signal, and the delay holding circuit is receiving
The air compressor and power supply are connected to after stating the electric signal of timer output and power-up state is maintained to set power down after duration.
Preferably, the constant time lag circuit includes relay K1, timer IC555 and transistor T, the relay K1
Power pins connect with the collector of the transistor T, the emitter of transistor T ground connection, the base stage of the transistor T
It is connect with the signal output pin OUT of the timer IC555；The periphery connection concussion delay circuit of the timer IC555,
The concussion delay circuit includes resistance R1, capacitor C1, capacitor C2, diode D1 and diode D2, the diode D1 and two
The mutually opposing composition parallel circuit of pole pipe D2, the positive electricity end of the parallel circuit connect with the resistance R1 after with the timing
The power pins VCC connection of device IC555, the negative electricity of the parallel circuit extremely with the triggering pin THR and threshold of the timer
It is worth pin TRI connection；The power pins of the timer IC555 are connected to a driving power, the relay K1 and the sky
Air compressor electrical connection.
Preferably, the pressure limiting air valve include: escape vents, safe air pressure adjusting nut, adjustment spring, spring lead,
Air channel, valve main support, ease gas movable piston, the nut that is tightened, seals that circle cushion rubber, escape in cabin air drain at air channel column；
At least one escape vents of top on safe air pressure adjusting nut, and safe air pressure adjusting nut inner wall is equipped with screw thread；Valve
Main support outer wall is equipped with screw thread, inner hollow；The valve main support is attached by screw thread and safe air pressure adjusting nut, is led to
Air drain column is fixed by the interference fit of its outer circle and the inner circle of valve main support；Air channel column is one hollow
Cylinder, outer wall are equipped at least one groove, i.e. air channel；And the outer wall of valve main support is equipped with two up and down of fixed bulkhead
Parallel step；Spring lead is fixed on the inner wall top of safe air pressure adjusting nut；Spring is uniformly covered according to normal condition
In spring lead, spring will exceed the length of spring lead；It is additionally provided on ease gas movable piston outer wall than valve main support
The small step of inner diameter carrys out location sealing circle cushion rubber, and outer diameter of step is more somewhat larger than the internal diameter for sealing circle cushion rubber, so that sealing
Circle cushion rubber can be bound round to be moved together on ease gas movable piston；The gas movable piston inner diameter that escapes is more slightly larger than the outer diameter of spring；And
Escaping between gas movable piston and valve main support, there are the air drains that escapes in cabin.
Preferably, air filtering assembly is installed at the air inlet of the air compressor.
By adopting the above technical scheme, high pressure draught is generated by air compressor timing and blows to the optical filtering lid, with clear
Except the optical filtering covers the dust being stained with, having reached makes camera lens position keep clean purpose.This programme automated cleaning monitor,
Manual operation is not needed, cleaning process is avoided to influence monitor work, time saving and energy saving effect is good.
Detailed description of the invention
Fig. 1 is the structural diagram of the present invention；
Fig. 2 is the circuit diagram of constant time lag circuit of the invention；
Fig. 3 is the structural schematic diagram of pressure limiting air valve of the invention.
Specific embodiment
Specific embodiments of the present invention will be further explained with reference to the accompanying drawing.It should be noted that for
The explanation of these embodiments is used to help understand the present invention, but and does not constitute a limitation of the invention.In addition, disclosed below
The each embodiment of the present invention involved in technical characteristic can be combined with each other as long as they do not conflict with each other.
A kind of street monitor with dust reduction capability, as shown in Figure 1 comprising monitor 1, optical filtering lid 2, dust-proof back cover
3, connecting terminal 4, ceiling 5, adjuster 6, pedestal 7, the external screw thread of the monitor 1 and the internal screw thread gap of 2 inner wall of optical filtering lid
Cooperation, the optical filtering lid 2 are vertically fixed on the left side of dust-proof back cover 3 and are parallel to each other, and 4 glue connection of connecting terminal is anti-
The right side of dirt rear cover 3, the ceiling 5 are fixed by screws in the top of 1 outer wall of monitor, the bottom and bottom of the adjuster 6
The movable block mechanical connection at 7 top of seat, the adjuster 6 are bolted on the bottom of monitor 1.
Key of the invention is that high pressure draught is periodically generated by an air compressor 8 blows to the optical filtering lid 2, with clear
Except the dust being stained on the optical filtering lid 2, camera lens position is made to keep clear.Its structure is that the air compressor 8 has air inlet
The gas outlet of mouth and gas outlet, the air compressor 8 is connected with outgassing nozzle 12 by tracheae 10, installs on the tracheae 10
Limited pressure valve 11, the pressure limiting air valve 11 is connected when the air pressure in the tracheae 10 is greater than the set value, the outlet
The venthole of nozzle 12 is tilted towards the optical filtering lid 2.The air compressor 8 is connected to electricity by constant time lag circuit 13
Source, the constant time lag circuit 13 include the timer and delay holding circuit by setting period output electric signal, timer
Trigger signal is periodically generated, the delay holding circuit is connected to the sky after the electric signal for receiving the timer output
Air compressor 8 and power supply simultaneously maintain power-up state to set power down after duration.
Structure shown in Fig. 2 can be used in the circuit diagram of the constant time lag circuit 13, i.e., the described constant time lag circuit 13
Including relay K1, timer IC555 and transistor T, the collector of the power pins of the relay K1 and the transistor T
Connection, the emitter ground connection of the transistor T, the signal output pin of the base stage of the transistor T and the timer IC555
OUT connection；The periphery connection concussion delay circuit of the timer IC555, the concussion delay circuit includes resistance R1, capacitor
C1, capacitor C2, diode D1 and the mutually opposing composition parallel circuit of diode D2, the diode D1 and diode D2, it is described
The positive electricity end of parallel circuit and the resistance R1 are connect after connecting with the power pins VCC of the timer IC555, it is described simultaneously
The negative electricity of connection circuit is extremely connect with the triggering pin THR of the timer and threshold value pin TRI；The timer IC555's
Power pins are connected to a driving power, and driving power, which corresponds to timer IC555, can use the DC power supply of 12V, the relay
K1 is electrically connected with the air compressor 8, and when relay K1 conducting, the air compressor 8 is in closed circuit with power supply
In, air compressor 8 works on power；When relay K1 cut-off, the air compressor 8 is in open circuit with power supply, air
8 power down of compressor does not work.
When the timer IC555 resets, OUT pin is in low level, triode T cut-off, the deactivation coil of relay K1
Electricity；After OUT pin is low level, C1 is connected by the electric discharge tube discharge inside D2, R1 and 555 timers, triode T, after
The coil of electric appliance K1 powers on.
In addition, R3 is base stage current-limiting resistance, D3 is connected in parallel on KA coil both ends, can be when triode T is turned off.Form afterflow
Access, avoids occurring high voltage on transistor causing to puncture, and plays a protective role.
The pressure limiting air valve 11 is just connected when the air pressure of the air compressor 8 output is greater than certain pressure value, is made
The air-flow for blowing to the optical filtering lid 2 has the air pressure of certain value, can be only achieved the effect for removing dust.Its principle is, in air pressure
It acts on ease gas movable piston 118, strength is delivered to pressure spring 113, when insufficient pressure is in starting pressure spring 113
When, ease gas movable piston 118 does not move；When air pressure increases, the strength acted on ease gas movable piston 118 is increased, until
Greater than the starting strength of pressure spring 113, the gas movable piston 118 that escapes is moved up, gas evolution；When the numerical value for needing to adjust air pressure
When, it can screw or unscrew safe air pressure adjusting nut 112.Therefore the pressure limiting air valve 11, not only has the pressure for opening valve
Power lower limit is also equipped with the pressure limiting upper limit, and hypertonia is avoided to damage monitor 1.It, can be according to by mechanical and gas cooperation
The preset air pressure upper limit carries out pressure control.
Air filtering assembly 9 is installed, barrier enters the sky of air compressor 8 at the air inlet of the air compressor 8
Gas impurity guarantees the cleanliness of gas.
In conjunction with attached drawing, the embodiments of the present invention are described in detail above, but the present invention is not limited to described implementations
Mode.For a person skilled in the art, in the case where not departing from the principle of the invention and spirit, to these embodiments
A variety of change, modification, replacement and modification are carried out, are still fallen in protection scope of the present invention.
Claims (4)
1. a kind of street monitor with dust reduction capability comprising monitor (1), filter lid (2), dust-proof back cover (3), wiring
Terminal (4), ceiling (5), adjuster (6), pedestal (7), the interior spiral shell of the external screw thread of the monitor (1) and lid (2) inner wall that filters
Line clearance fit, the optical filtering lid (2) are vertically fixed on the left side of dust-proof back cover (3) and are parallel to each other, the connecting terminal
(4) glue connection is fixed by screws in the top of monitor (1) outer wall, institute on the right side of dust-proof back cover (3), the ceiling (5)
It states the bottom of adjuster (6) and the movable block at the top of pedestal (7) is mechanically connected, the adjuster (6) is bolted on prison
Control the bottom of device (1)；
It is characterized in that, further including an air compressor (8), the air compressor (8) has air inlet and air outlet, described
The gas outlet of air compressor (8) is connected with outgassing nozzle (12) by tracheae (10), is equipped with pressure limiting on the tracheae (10)
Air valve (11), the pressure limiting air valve (11) is connected when the air pressure in the tracheae (10) is greater than the set value, the outlet
The venthole inclination of nozzle (12) covers (2) towards the optical filtering；
The air compressor (8) is connected to power supply by constant time lag circuit (13), and the constant time lag circuit (13) includes
The timing is being received by the timer and delay holding circuit, the delay holding circuit of setting period output electric signal
The air compressor (8) and power supply are connected to after the electric signal of device output and power-up state is maintained to set power down after duration.
2. the street monitor according to claim 1 with dust reduction capability, which is characterized in that the constant time lag circuit
It (13) include relay K1, timer IC555 and transistor T, the collection of the power pins of the relay K1 and the transistor T
The signal of electrode connection, the emitter ground connection of the transistor T, the base stage of the transistor T and the timer IC555 export
Pin OUT connection；The timer IC555 periphery connection concussion delay circuit, the concussion delay circuit include resistance R1,
Capacitor C1, capacitor C2, diode D1 and the mutually opposing composition parallel circuit of diode D2, the diode D1 and diode D2,
The positive electricity end of the parallel circuit is connect after connecting with the resistance R1 with the power pins VCC of the timer IC555, institute
The negative electricity for stating parallel circuit is extremely connect with the triggering pin THR of the timer and threshold value pin TRI；The timer
The power pins of IC555 are connected to a driving power, and the relay K1 is electrically connected with the air compressor (8).
3. the street monitor according to claim 1 or 2 with dust reduction capability, which is characterized in that the pressure limiting air valve
It (11) include: escape vents (111), safe air pressure adjusting nut (112), adjustment spring (113), spring lead (114), ventilation
It is slot (115), air channel column (116), valve main support (117), ease gas movable piston (118), the nut that is tightened (119), close
Seal interior ease air drain (121) of circle cushion rubber (120), cabin；
At least one escape vents (111) of top on safe air pressure adjusting nut (112), and safe air pressure adjusting nut
(112) inner wall is equipped with screw thread；Valve main support (117) outer wall is equipped with screw thread, inner hollow；The valve main support (117) passes through
Screw thread is attached with safe air pressure adjusting nut (112), and air channel column (116) is by its outer circle and valve main support
(117) what the interference fit of inner circle was fixed；Air channel column (116) is a hollow cylinder, and outer wall is equipped at least
One groove, i.e. air channel (115)；And the outer wall of valve main support (117) is equipped with two parallel steps up and down of fixed bulkhead；
Spring lead (114) is fixed on the inner wall top of safe air pressure adjusting nut (112)；Spring (113) is equal according to normal condition
For even set on spring lead (114), spring will exceed the length of spring lead (114)；Escape gas movable piston (118) outer wall
On be additionally provided with the step smaller than valve main support (117) inner diameter come location sealing circle cushion rubber (120), outer diameter of step than sealing
The internal diameter of circle cushion rubber (120) is somewhat larger, so that sealing circle cushion rubber (120) can bind round in ease gas movable piston (118) together
Movement；Gas movable piston (118) inner diameter that escapes is more slightly larger than the outer diameter of spring；And escape gas movable piston (118) and the main branch of valve
There are escape air drain (121) in cabin between frame (117).
4. the street monitor according to claim 3 with dust reduction capability, which is characterized in that the air compressor
(8) air filtering assembly (9) are installed at air inlet.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811178248.1A CN109510968A (en) | 2018-10-10 | 2018-10-10 | Street monitor with dust reduction capability |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811178248.1A CN109510968A (en) | 2018-10-10 | 2018-10-10 | Street monitor with dust reduction capability |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109510968A true CN109510968A (en) | 2019-03-22 |
Family
ID=65746380
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811178248.1A Pending CN109510968A (en) | 2018-10-10 | 2018-10-10 | Street monitor with dust reduction capability |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109510968A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110261142A (en) * | 2019-06-21 | 2019-09-20 | 中国神华能源股份有限公司 | Detection device |
-
2018
- 2018-10-10 CN CN201811178248.1A patent/CN109510968A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110261142A (en) * | 2019-06-21 | 2019-09-20 | 中国神华能源股份有限公司 | Detection device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20190322 |
|
| WD01 | Invention patent application deemed withdrawn after publication |