CN201677897U - Wiper system - Google Patents
Wiper system Download PDFInfo
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- CN201677897U CN201677897U CN2009203523852U CN200920352385U CN201677897U CN 201677897 U CN201677897 U CN 201677897U CN 2009203523852 U CN2009203523852 U CN 2009203523852U CN 200920352385 U CN200920352385 U CN 200920352385U CN 201677897 U CN201677897 U CN 201677897U
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- 229920000260 silastic Polymers 0.000 claims description 4
- 238000005507 spraying Methods 0.000 claims description 3
- 229910001220 stainless steel Inorganic materials 0.000 claims description 3
- 239000010935 stainless steel Substances 0.000 claims description 3
- 239000002966 varnish Substances 0.000 claims description 3
- 238000004140 cleaning Methods 0.000 abstract description 6
- 238000001514 detection method Methods 0.000 abstract description 4
- 238000000034 method Methods 0.000 description 7
- 238000005516 engineering process Methods 0.000 description 5
- 230000008569 process Effects 0.000 description 5
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- 238000012423 maintenance Methods 0.000 description 1
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- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
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Abstract
The utility model discloses a wiper system, which is used for cleaning a camera protection cover. A patrol inspection center terminal remotely logs in a detection station computer via a network transmission system and controls the detection station computer to generate a wiper control signal and transmit the wiper control signal to a wiper control circuit, and the wiper control circuit controls starting or stoppage of a wiper according to the wiper control signal. The wiper is fixed on a camera protection cover through a mounting bracket and a fixing ring. The utility model can realize the cleaning of the camera protection cover via remote operation, and prevent the operator from going to the field in person for cleaning when finding that the shot picture is not clear. Moreover, the cleaning can be promptly completely via remote operation, thereby improving the shooting accuracy.
Description
Technical field
The utility model relates to the railway monitoring technique, particularly relates to a kind of Wiper system.
Background technology
At present, in the railway transportation, adopt TFDS (TFDS) that train operation is monitored.TFDS is the intelligence system that a cover integrates high-speed figure image acquisition, large capacity image data real-time processing technique, placement technology, mode identification technology, intellectuality, networking technology and automatic control technology, and its design goal is that the hidden fault of lorry and most common failure are carried out detection of dynamic.When train passed through, TFDS finished real time image collection by train is taken pictures.
In present TFDS, the photographic camera that is used to take pictures places in the camera protective cap, is installed in the field, is unattended automation equipment, and image acquisition needs round-the-clock 24 hours outdoor works.Because open-air environment is abominable; sleety weather can cause rainwater, snow, mist, frost and dust, earth etc. attached on the camera protective cap; cause the picture that photographs unintelligible; even seriously block the shooting sight line; directly restrict the visibility and the analyticity of image; detection brings difficulty to dynamic image, has influenced the normal operation of whole TFDS.Use existing TFDS, when finding the problems referred to above, must arrive in remote open-air acquisition station in person by the maintainer camera protective cap is cleaned, make troubles not only for the use of TFDS, and increased maintainer's work capacity.
The utility model content
The utility model provides a kind of Wiper system, is intended to by Long-distance Control camera protective cap be cleaned.
For achieving the above object, the technical solution of the utility model is achieved in that
The utility model discloses a kind of Wiper system, be used to clean camera protective cap, this Wiper system comprises: row inspection center terminal, network transmission system, acquisition station computing machine, Wiper control circuit and rain brush;
Described row inspection center terminal remotely logs on on the acquisition station computing machine by network transmission system, and control acquisition station computing machine generates the rain brush control signal;
Described acquisition station computing machine generates the rain brush control signal and sends to Wiper control circuit under the control of row inspection center terminal;
Described Wiper control circuit receives the rain brush control signal from the acquisition station computing machine, opens or closes according to this rain brush control signal control rain brush;
Described rain brush is opened under the control of Wiper control circuit, and reciprocally swinging is closed under the control of Wiper control circuit, stops swinging.
Described Wiper control circuit comprises:
The rectifying device of the rectifying device of the electric capacity of motor, motor, power supply, master cock, limit switch S1, limit switch S2, relay K 1, relay K 1, relay K 2 and relay K 2 thereof;
Described motor is the duplex winding load motor, and two windings have a common tap M3, two windings separately non-common tap M1 and M2 between the electric capacity of described motor in parallel; Described motor comprises a limit switch depression bar that is positioned on the motor shaft, this limit switch depression bar is pushed down limit switch S1 when rain brush is swung the arrival predetermined angle left, limit switch S1 contact redirect, this limit switch depression bar was pushed down limit switch S2, limit switch S2 contact redirect when swing arrived predetermined angle to the right;
Described power supply one end connects the tap M3 of motor and an end of master cock, and is connected to an end of the rectifying device of relay K 2 by the initial contact of limit switch S2, and the other end of power supply connects an end of the rectifying device of relay K 1;
Described master cock is used for according to controlling the unlatching of motor from the rain brush control signal of acquisition station computing machine or closing;
When master cock disconnects, the coil of relay K 1 and relay K 2 all is in power failure state, power supply is connected to the tap M1 of motor successively by the initial contact of relay K 1, limit switch S1 and relay K 2, motor just changes, and drives rain brush and swings left, put predetermined angle up to a rain brush left side, the limit switch depression bar is pushed down limit switch S1, limit switch S1 contact redirect, tap M1 outage, motor stall, rain brush rest on pendulum predetermined angle place, a left side;
The master cock closure, the coil of relay K 1 gets electronic work, the redirect of K1 contact, power supply is connected to the rectifying device of relay K 2 by relay K 1 and limit switch S1, the coil of relay K 2 gets electronic work, the redirect of K2 contact, power supply is connected to the tap M2 of motor successively by the redirect contact of relay K 1 and relay K 2, the motor counter-rotating drives rain brush and swings to the right, puts predetermined angle up to the rain brush right side, the limit switch depression bar is pushed down limit switch S2, limit switch S2 contact redirect, the ac input end dead electricity of the rectifying device of relay K 2, the coil losing electricity action of relay K 2, relay K 2 is got back to initial contact, tap M2 outage and the power supply initial contact of the redirect contact by relay K 1 and relay K 2 successively are connected to the tap M1 of motor, and motor just changes, and drives rain brush swing left once more.
The rectifying device of the rectifying device of described relay K 1 or relay K 2 is: the diode of polyphone and electric capacity, or, rectifier.
Described master cock is the open contact of control relay, and the same electrode of the tap M3 common source of the open contact of this control relay and motor is controlled this control relay by solid-state relay.
Described rain brush comprises at least: housing, mounting bracket, mounting ring, connecting rod rest, fork, Wiper blade and spring;
Place described Wiper control circuit in the described housing, the upper surface of housing has a connecting bore, and housing is connected with mounting bracket by screw;
Described connecting rod rest is by the motor in the connecting bore connection Wiper control circuit of housing upper surface and the fork of hull outside;
Described fork connects connecting rod rest and Wiper blade, and fork is connected by spring with Wiper blade, and Wiper blade is pressed on the camera protective cap, and fork is parallel with the upper surface of camera protective cap with Wiper blade;
Described mounting bracket comprises two mutually perpendicular planes, wherein, perpendicular is connected with housing by screw, there is a circular hole in the middle of the horizontal plane, this circular hole is identical with the camera protective cap diameter, described mounting bracket is fixed on the camera protective cap by described mounting ring, and upper surface is a little less than the camera protective cap upper surface;
The internal diameter of described mounting ring is identical with the camera protective cap diameter, and mounting ring is welded in the circular hole of mounting bracket, and is enclosed within the camera protective cap outside among the existing TFDS, is fixed on the camera protective cap by screw.
The output torque of described motor is more than or equal to μ K (X2-X1); wherein, μ is the coefficient of sliding resistance between Wiper blade and the camera protective cap, and K is the elasticity modulus of spring; X1 is the natural length of spring, and X2 is the length after spring is installed between fork and the Wiper blade.
Described predetermined angle is arcsin (D/2L), and wherein, D is the diameter of camera protective cap, and L is the distance between electrical axis and the camera protective cap center.
Described mounting bracket and mounting ring adopt the surface to make through the stainless steel material of sandblast and the spraying of mute lac varnish;
And/or the length of described Wiper blade is more than or equal to the diameter of camera protective cap;
And/or the lower edge of described Wiper blade is that silastic material is made.
Described row inspection center terminal detects and controls the rain brush control signal that rain brush is closed in the generation of acquisition station computing machine when train arrives.
By above-mentioned utility model content as seen, in the Wiper system that the utility model proposes, row inspection center terminal remotely logs on on the acquisition station computing machine by network transmission system, control acquisition station computing machine generates the rain brush control signal and sends to Wiper control circuit, rain brush is opened or is closed in described rain brush control signal indication, and Wiper control circuit is opened or closed according to this rain brush control signal control rain brush.Each rain brush in this system is fixed on the camera protective cap of existing TFDS by mounting bracket and mounting ring, and under the control of Wiper control circuit, Wiper blade is reciprocally swinging in the predetermined angle of two rotation directions, and camera protective cap is cleaned.Thereby finish the cleaning of the camera protective cap of existing TFDS by remote operation; needn't allow operating personal after the discovery pictures taken is unintelligible, go to the field to clean in person; and, therefore improved the accuracy of taking pictures of TFDS when finding that camera protective cap is stained because remote operation can be cleaned it in time.
Description of drawings
Fig. 1 is the structural representation of the utility model first preferred embodiment Wiper system;
Fig. 2 is the principle of work scheme drawing of the utility model first preferred embodiment rain brush 15;
Fig. 3 is the lateral plan of the utility model first preferred embodiment rain brush 15;
Fig. 4 is the front view of the utility model first preferred embodiment rain brush 15;
Fig. 5 is the birds-eye view of the utility model first preferred embodiment rain brush 15;
Fig. 6 is the block diagram of the utility model first preferred embodiment rain brush 15;
Fig. 7 is the circuit diagram of the utility model first preferred embodiment Wiper control circuit 14;
Fig. 8 is the scheme drawing of the predetermined angle of the utility model first preferred embodiment rain brush 15 swings;
Fig. 9 is the scheme drawing of the utility model second preferred embodiment Wiper control circuit 14.
The specific embodiment
In order to make the purpose of this utility model, technical scheme and advantage clearer, the utility model is described in detail below in conjunction with the drawings and specific embodiments.
Basic thought of the present utility model is for each places open-air rain brush of TFDS camera arrangement, by at the computing machine of row inspection center telnet acquisition station this rain brush being controlled, to finish clean operation.
Fig. 1 is the structural representation of the utility model first preferred embodiment Wiper system.As shown in Figure 1, this Wiper system comprises: row inspection center terminal 11, network transmission system 12, acquisition station computing machine 13, Wiper control circuit 14 and rain brush 15.
Row inspection center terminal 11 is connected with acquisition station computing machine 13 by network transmission system 12.Network transmission system 12 is the intermediary's mediums that communicate between row inspection center terminal 11 and the acquisition station computing machine 13.Operating personal is positioned at row inspection center, operates by row inspection center terminal 11.Row inspection center terminal 11 remotely logs on on the acquisition station computing machine 13 by network transmission system 12, control acquisition station computing machine 13 generates the rain brush control signal, rain brush is opened or is closed in this rain brush control signal indication, acquisition station computing machine 13 sends to Wiper control circuit 14 with the rain brush control signal, Wiper control circuit 14 receives the rain brush control signal from acquisition station computing machine 13, opens or closes according to this rain brush control signal control rain brush 15.Rain brush 15 is opened under the control of Wiper control circuit 14, and reciprocally swinging cleans camera protective cap, and closes under the control of Wiper control circuit 14, stops swinging.
Close rain brush in order to prevent that operating personal from forgetting, a setting-up time is set, each clean operation time of rain brush 15 is limited.After row inspection center terminal 11 each control acquisition station computing machines 13 generated the rain brush control signal of opening rain brush, through setting-up time, row inspection center terminal 11 control acquisition station computing machines 13 generated the rain brush control signal of closing rain brush.A kind of preferred implementation is, row inspection center terminal 11 is opened the rain brush control signal of rain brush after 1 minute in 13 generations of each control acquisition station computing machine, control acquisition station computing machine 13 generates the rain brush control signal of closing rain brush, so rain brush 15 promptly stops cleaning in each action after 1 minute.And, for the work that prevents rain brush 15 when train is worked camera is taken and to be impacted, therefore, row inspection center terminal 11 control acquisition station computing machine 13 when detecting train and arrive generates the rain brush control signal of closing rain brush.
Because Wiper system of the present utility model is the improvement of carrying out on the basis of existing TFDS, and there has been the row inspection center terminal that is used for photographic camera is carried out Long-distance Control among the existing TFDS, network transmission system and acquisition station computing machine, therefore, row inspection center terminal 11 in the Wiper system of the present utility model, network transmission system 12 and acquisition station computing machine 13 can be examined center terminal with the row of existing TFDS respectively, network transmission system and acquisition station computing machine are unified, utilize the row inspection center terminal of existing TFDS, network transmission system and acquisition station computing machine carry out Long-distance Control to rain brush 15.
Below respectively rain brush in the Wiper system of the present utility model 15 and Wiper control circuit 14 are elaborated.Comprise motor in the Wiper control circuit 14, rain brush 15 is connected with this motor.
Fig. 2 is the principle of work scheme drawing of the utility model first preferred embodiment rain brush 15.Referring to Fig. 2; the basic functional principle of rain brush 15 is: by pipe link Wiper blade is connected with the motor shaft of motor; Wiper blade is parallel with the upper surface of camera protective cap; and Wiper blade covers on the upper surface of camera protective cap; motor rotates to positive and negative both direction; thereby drive Wiper blade reciprocally swinging on the camera protective cap upper surface, camera protective cap is cleared up.
Fig. 3 is the lateral plan of the utility model first preferred embodiment rain brush 15; Fig. 4 is the front view of the utility model first preferred embodiment rain brush 15; Fig. 5 is the birds-eye view of the utility model first preferred embodiment rain brush 15; Fig. 6 is the block diagram of the utility model first preferred embodiment rain brush 15.Shown in Fig. 3,4,5 and 6, rain brush 15 comprises at least: housing 151, mounting bracket 152, mounting ring 153, connecting rod rest 154, fork 155, Wiper blade 156 and spring 157.
Place above-mentioned Wiper control circuit 14 in the housing 151.The upper surface of housing 151 has a connecting bore, and connecting rod rest 154 is by the motor in this connecting bore connection Wiper control circuit 14 and the fork 155 in housing 151 outsides.Fork 155 connects connecting rod rest 154 and Wiper blade 156, and fork 155 is parallel with the camera protective cap upper surface with Wiper blade 156, and Wiper blade 156 is pressed on the camera protective cap.Clean in order to make Wiper blade 156 can push down camera protective cap herein, need 156 pairs of camera protective caps of Wiper blade that enough pressure is arranged, therefore between fork 155 and Wiper blade 156, adopt spring 157 to connect.Adopt said apparatus, Wiper blade 156 can be under the drive of the motor in the Wiper control circuit 14 on camera protective cap reciprocally swinging.
In order to guarantee in rain brush 15 operational processs that the scope of Wiper blade 156 swings can cover whole camera protective cap surface, therefore need the length of Wiper blade 156 be limited.When Wiper blade 156 moves on the straight line at electrical axis and place, camera protective cap center; required Wiper blade 156 length are the longest; this moment, the length of Wiper blade 156 was the diameter of camera protective cap, and therefore the length of Wiper blade 156 of the present utility model needs the diameter more than or equal to camera protective cap.For guaranteeing reliability service, a kind of preferred implementation is that the length of Wiper blade 156 is bigger 5 millimeters than the diameter of camera protective cap.In order to prevent that water stain causing of Wiper blade 156 absorption from spreading upon the camera protective cap surface with the addle stain in swing process, the lower edge material of Wiper blade 156 of the present utility model is selected silastic material, and silastic material does not adsorb water stain and durable in use.
Above-mentioned rain brush 15, by a plurality of electronics package collaborative works, is controlled this motor in control circuit 14 by the driven by motor in the control circuit 14.Fig. 7 is the circuit diagram of the utility model first preferred embodiment Wiper control circuit 14.Referring to Fig. 7, Wiper control circuit 14 comprises at least: the rectifying device of the rectifying device of the capacitor C of motor M, motor M, power supply E, master cock S, limit switch S1 and S2, relay K 1, relay K 1, relay K 2 and relay K 2.In the embodiment shown in fig. 7, the rectifying device of relay K 1 adopts the diode D10 and the capacitor C 10 of polyphone, and described relay K 1 is connected in parallel on capacitor C 10 two ends; The rectifying device of relay K 2 adopts rectifier bridge D20, and relay K 2 is connected in parallel on two dc output ends of rectifier bridge D20.Further, for protective relay K1 and K2, can be respectively at K1, K2 two ends parallel voltage-stabilizing diode D1, D2.
Motor M is connected with rain brush 15, because the environment for use of rain brush 15 is abominable, so motor M must be selected the motor of stable and easy maintenance.And therefore rain brush 15 of the present utility model reciprocally swinging on camera protective cap requires motor M can realize the rotation of positive and negative both direction.Comprehensive above two factors, the motor M in the utility model is the duplex winding load motor.Referring to Fig. 7, motor M has three taps, is respectively tap M1, tap M2 and tap M3, between tap M1 and the tap M3, respectively be connected a winding between tap M2 and the tap M3.Tap M3 is the common tap of two windings, a utmost point of power connection.When another utmost point of power supply inserted tap M1, motor M was just changeed; When another utmost point of power supply inserts tap M2, the motor M counter-rotating.The capacitor C of parallel-connected induction motors M between tap M1 and the tap M2 is as the startup electric capacity of motor M.
And, because after rain brush 15 swings to predetermined angle in one direction in the utility model is backswing, therefore in motor M, comprise one and motor shaft bonded assembly limit switch depression bar, be used for when a direction is rotated the arrival predetermined angle, pushing down limit switch S 1 or S2 in rain brush 15.
In Wiper system of the present utility model, the moment of torsion of motor M need satisfy following requirement.In the rain brush 15, the natural length of spring 157 is X1, is installed between fork 155 and the Wiper blade 156 back length and becomes X2, and the elasticity modulus of spring 157 is K, and then this moment, Wiper blade 156 was for the pressure of camera protective cap:
N＝K(X2-X1)，
In the process of Wiper blade 156 swing, the coefficient of sliding resistance between Wiper blade 156 and the camera protective cap is μ, and then the friction force that is subjected in motion process of Wiper blade 156 is:
F＝μN，
This friction force acts on the end of fork 155, and the resisting moment that motor shaft is produced is:
T＝FL＝μK(X2-X1)，
Because the output torque of motor M must be more than or equal to resisting moment, so the output torque of motor M must be more than or equal to μ K (X2-X1).Consider certain surplus, a kind of preferable and embodiment is, selecting the output torque of motor M is 1.2 μ K (X2-X1).
Referring to Fig. 7, power supply E adopts the 24V source of AC, power supply E one end connects the tap M3 of motor M and the end of master cock S, and be connected to an end of the rectifying device of relay K 2 by the initial contact of limit switch S2, the power supply E other end connects an end of the rectifying device of relay K 1, i.e. diode D10.
Master cock S is used for according to controlling the unlatching of motor M from the rain brush control signal of acquisition station computing machine or closing.Master cock S one end connects power supply E, and the other end connects the end of relay K 1 away from power supply.
Limit switch S1 and S2 are respectively applied for the predetermined angle of control rain brush 15 a direction swing.The state of S1 shown in Figure 7 and S2 is initial contact separately.When rain brush was swung the arrival predetermined angle left, the limit switch depression bar on the motor shaft was pushed down limit switch S 1, the redirect of S1 contact, and when the limit switch depression bar left S1, S1 returned to initial contact.Equally, when rain brush was swung the arrival predetermined angle to the right, the limit switch depression bar on the motor shaft was pushed down limit switch S2, the redirect of S2 contact, and when the limit switch depression bar left S2, S2 returned to initial contact.
In Wiper control circuit shown in Figure 7 14, master cock S disconnects, the coil of relay K 1 and K2 all is in power failure state, relay K 1 and K2 are in initial contact shown in Figure 7 during dead electricity, power supply E is connected to the tap M1 of motor M successively by the initial contact of relay K 1, limit switch S1 and relay K 2, motor M is just changeed, and drives rain brush 15 and swings left.Put predetermined angle up to rain brush 15 left sides, limit switch S1 contact redirect, tap M1 outage, the motor stall, so rain brush 15 rests on pendulum predetermined angle place, a left side, is the initial position of rain brush 15 herein.The design of the initial position of rain brush 15 at the predetermined angle place of a side, can be prevented that blocking camera when rain brush 15 is static takes pictures.
When master cock S is closed, the coil of relay K 1 gets electronic work, the redirect of K1 contact, power supply is connected to the rectifying device of relay K 2 by relay K 1 and limit switch S1, i.e. rectifier bridge D20 ac input end energising, and the coil of relay K 2 gets electronic work, the redirect of K2 contact, power supply E is connected to the tap M2 of motor M successively by the redirect contact of relay K 1 and relay K 2, the motor M counter-rotating drives rain brush 15 and swings to the right.Put predetermined angle up to rain brush 15 right sides, limit switch S2 contact redirect, the ac input end dead electricity of rectifier bridge D20, the coil losing electricity action of relay K 2, relay K 2 is got back to initial contact, tap M2 outage and power supply the E initial contact of the redirect contact by relay K 1 and relay K 2 successively are connected to the tap M1 of motor M, and motor M is just changeed, and drives rain brush 15 beginnings swing left once more.So repeat above step, rain brush 15 is reciprocally swinging between the predetermined angle of the left and right sides.
The purpose that the swing predetermined angle is set for rain brush 15 is in order to guarantee that Wiper blade 156 can cover whole camera protective caps surface in swing process, and avoids excessive the causing of hunting range of rain brush 15 to run off beyond the camera protective cap fully.Predetermined angle is that system allows the maximum angle of rain brush 15 a direction swing, when rain brush 15 swing round about when a direction swing arrives predetermined angle, when arriving predetermined angle once more, change swaying direction once more, therefore, reciprocally swinging in the scope of rain brush 15 between the predetermined angle of both direction.Fig. 8 is the scheme drawing of the predetermined angle of the utility model first preferred embodiment rain brush 15 swings.Limit switch S1 in the Wiper control circuit 14 and the position of S2 are according to the predetermined angle setting.Referring to Fig. 8; distance between electrical axis O and the camera protective cap center A is L; the diameter of camera protective cap is D; the action radius of rain brush is limited between OC and the OB; so two limit switches should be installed in the outside of OC and OB respectively; from the maximum angle of any to the left and right side oscillation of line OA at electrical axis and camera protective cap center is α; then: Sin α=(D/2)/L; therefore; predetermined angle for the rain brush setting; promptly allow the maximum angle of rain brush to a direction swing, for: α=arcsin (D/2L).
In actual applications, the master cock S in the Wiper control circuit 14 shown in Figure 3 can also use a relay to realize, below gives brief description by second preferred embodiment.
Fig. 9 is the scheme drawing of the utility model second preferred embodiment Wiper control circuit 14.Referring to Fig. 9, the master cock S in the Wiper control circuit 14 uses the open contact of a control relay to realize, and by control box this control relay is controlled.This control box adopts solid-state relay, adopts two connection terminals to link to each other with the coil two ends of this control relay respectively.Control box can link to each other with the computing machine of acquisition station, receives control program from the acquisition station computing machine as the rain brush control signal.Control submodule among Fig. 9 comprises control all devices except that switch S and power supply E in the Wiper control circuit shown in Figure 8 14, and its annexation and shown in Figure 8 identical, does not repeat them here.When needs started rain brush 15, it is electric that control program gets the coil of this control relay by control box, promptly is equivalent to closed master cock S.Adopting under the situation of present embodiment, it should be noted that this control relay open contact must with the shared same ac electrode of the tap M3 of motor M.
By above-mentioned embodiment as seen, the Wiper system that the utility model proposes places open-air rain brush of TFDS camera arrangement for each, by this Wiper control circuit of computer controlled at row inspection center telnet acquisition station, open or close by Wiper control circuit control rain brush, thereby clean operation is finished in remote operation.Each rain brush in this system is fixed on the camera protective cap of existing TFDS by mounting bracket and mounting ring.
The above only is preferred embodiment of the present utility model; not in order to restriction the utility model; all within spirit of the present utility model and principle, any modification of being made, be equal to replacement, improvement etc., all should be included within the scope of the utility model protection.
Claims (9)
1. a Wiper system is used to clean camera protective cap, it is characterized in that, this Wiper system comprises: row inspection center terminal, network transmission system, acquisition station computing machine, Wiper control circuit and rain brush;
Described row inspection center terminal remotely logs on on the acquisition station computing machine by network transmission system, and control acquisition station computing machine generates the rain brush control signal;
Described acquisition station computing machine generates the rain brush control signal and sends to Wiper control circuit under the control of row inspection center terminal;
Described Wiper control circuit receives the rain brush control signal from the acquisition station computing machine, opens or closes according to this rain brush control signal control rain brush;
Described rain brush is opened under the control of Wiper control circuit, and reciprocally swinging is closed under the control of Wiper control circuit, stops swinging.
2. Wiper system according to claim 1 is characterized in that, described Wiper control circuit comprises:
The rectifying device of the rectifying device of the electric capacity of motor, motor, power supply, master cock, limit switch S1, limit switch S2, relay K 1, relay K 1, relay K 2 and relay K 2 thereof;
Described motor is the duplex winding load motor, and two windings have a common tap M3, two windings separately non-common tap M1 and M2 between the electric capacity of described motor in parallel; Described motor comprises a limit switch depression bar that is positioned on the motor shaft, this limit switch depression bar is pushed down limit switch S1 when rain brush is swung the arrival predetermined angle left, limit switch S1 contact redirect, this limit switch depression bar was pushed down limit switch S2, limit switch S2 contact redirect when swing arrived predetermined angle to the right;
Described power supply one end connects the tap M3 of motor and an end of master cock, and is connected to an end of the rectifying device of relay K 2 by the initial contact of limit switch S2, and the other end of power supply connects an end of the rectifying device of relay K 1;
Described master cock is used for according to controlling the unlatching of motor from the rain brush control signal of acquisition station computing machine or closing;
When master cock disconnects, the coil of relay K 1 and relay K 2 all is in power failure state, power supply is connected to the tap M1 of motor successively by the initial contact of relay K 1, limit switch S1 and relay K 2, motor just changes, and drives rain brush and swings left, put predetermined angle up to a rain brush left side, the limit switch depression bar is pushed down limit switch S1, limit switch S1 contact redirect, tap M1 outage, motor stall, rain brush rest on pendulum predetermined angle place, a left side;
The master cock closure, the coil of relay K 1 gets electronic work, the redirect of K1 contact, power supply is connected to the rectifying device of relay K 2 by relay K 1 and limit switch S1, the coil of relay K 2 gets electronic work, the redirect of K2 contact, power supply is connected to the tap M2 of motor successively by the redirect contact of relay K 1 and relay K 2, the motor counter-rotating drives rain brush and swings to the right, puts predetermined angle up to the rain brush right side, the limit switch depression bar is pushed down limit switch S2, limit switch S2 contact redirect, the ac input end dead electricity of the rectifying device of relay K 2, the coil losing electricity action of relay K 2, relay K 2 is got back to initial contact, tap M2 outage and the power supply initial contact of the redirect contact by relay K 1 and relay K 2 successively are connected to the tap M1 of motor, and motor just changes, and drives rain brush swing left once more.
3. Wiper system according to claim 2 is characterized in that,
The rectifying device of the rectifying device of described relay K 1 or relay K 2 is: the diode of polyphone and electric capacity, or, rectifier.
4. Wiper system according to claim 2 is characterized in that,
Described master cock is the open contact of control relay, and the same electrode of the tap M3 common source of the open contact of this control relay and motor is controlled this control relay by solid-state relay.
5. according to any described Wiper system in the claim 2,3 or 4, it is characterized in that described rain brush comprises at least: housing, mounting bracket, mounting ring, connecting rod rest, fork, Wiper blade and spring;
Place described Wiper control circuit in the described housing, the upper surface of housing has a connecting bore, and housing is connected with mounting bracket by screw;
Described connecting rod rest is by the motor in the connecting bore connection Wiper control circuit of housing upper surface and the fork of hull outside;
Described fork connects connecting rod rest and Wiper blade, and fork is connected by spring with Wiper blade, and Wiper blade is pressed on the camera protective cap, and fork is parallel with the upper surface of camera protective cap with Wiper blade;
Described mounting bracket comprises two mutually perpendicular planes, wherein, perpendicular is connected with housing by screw, there is a circular hole in the middle of the horizontal plane, this circular hole is identical with the camera protective cap diameter, described mounting bracket is fixed on the camera protective cap by described mounting ring, and upper surface is a little less than the camera protective cap upper surface;
The internal diameter of described mounting ring is identical with the camera protective cap diameter, and mounting ring is welded in the circular hole of mounting bracket, and is enclosed within the camera protective cap outside among the existing TFDS, is fixed on the camera protective cap by screw.
6. Wiper system according to claim 5 is characterized in that,
The output torque of described motor is more than or equal to μ K (X2-X1); wherein, μ is the coefficient of sliding resistance between Wiper blade and the camera protective cap, and K is the elasticity modulus of spring; X1 is the natural length of spring, and X2 is the length after spring is installed between fork and the Wiper blade.
7. Wiper system according to claim 5 is characterized in that,
Described predetermined angle is arcsin (D/2L), and wherein, D is the diameter of camera protective cap, and L is the distance between electrical axis and the camera protective cap center.
8. Wiper system according to claim 5 is characterized in that,
Described mounting bracket and mounting ring adopt the surface to make through the stainless steel material of sandblast and the spraying of mute lac varnish;
And/or the length of described Wiper blade is more than or equal to the diameter of camera protective cap;
And/or the lower edge of described Wiper blade is that silastic material is made.
9. Wiper system according to claim 1 is characterized in that,
Described row inspection center terminal detects and controls the rain brush control signal that rain brush is closed in the generation of acquisition station computing machine when train arrives.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009203523852U CN201677897U (en) | 2009-12-24 | 2009-12-24 | Wiper system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009203523852U CN201677897U (en) | 2009-12-24 | 2009-12-24 | Wiper system |
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| Publication Number | Publication Date |
|---|---|
| CN201677897U true CN201677897U (en) | 2010-12-22 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009203523852U Expired - Lifetime CN201677897U (en) | 2009-12-24 | 2009-12-24 | Wiper system |
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| CN (1) | CN201677897U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102104720A (en) * | 2010-12-31 | 2011-06-22 | 天津市亚安科技电子有限公司 | Device for controlling built-in wiper |
| CN102815116A (en) * | 2012-07-27 | 2012-12-12 | 东华大学 | Automatic music-turning device for pianos |
| CN103676966A (en) * | 2012-09-26 | 2014-03-26 | 深圳市艾立克电子有限公司 | A wiper apparatus and a camera |
| CN105721829A (en) * | 2014-12-18 | 2016-06-29 | 韩华泰科株式会社 | Surveillance Camera, Recording Apparatus For Surveillance, And Surveillance System |
-
2009
- 2009-12-24 CN CN2009203523852U patent/CN201677897U/en not_active Expired - Lifetime
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102104720A (en) * | 2010-12-31 | 2011-06-22 | 天津市亚安科技电子有限公司 | Device for controlling built-in wiper |
| CN102815116A (en) * | 2012-07-27 | 2012-12-12 | 东华大学 | Automatic music-turning device for pianos |
| CN102815116B (en) * | 2012-07-27 | 2015-01-07 | 东华大学 | Automatic music-turning device for pianos |
| CN103676966A (en) * | 2012-09-26 | 2014-03-26 | 深圳市艾立克电子有限公司 | A wiper apparatus and a camera |
| CN105721829A (en) * | 2014-12-18 | 2016-06-29 | 韩华泰科株式会社 | Surveillance Camera, Recording Apparatus For Surveillance, And Surveillance System |
| US10511811B2 (en) | 2014-12-18 | 2019-12-17 | Hanwha Techwin Co., Ltd. | Surveillance camera, recording apparatus for surveillance, and surveillance system |
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Inventor after: Gong Maocai Inventor after: Yin Yanchao Inventor after: Jiang Yunfei Inventor after: Qie Haibiao Inventor after: Li Xia Inventor after: Liu Fei Inventor after: Sheng Jianlong Inventor after: Fu Zhengbo Inventor before: Gong Maocai Inventor before: Yin Yanchao Inventor before: Jiang Yunfei Inventor before: Qie Haibiao Inventor before: Li Xia Inventor before: Liu Fei |
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