The present disclosure relates generally to assistance system for a vehicle. More particularly, the present disclosure provides a system for recognizing signboard on roadside and controlling the speed of the vehicle accordingly.
BACKGROUND
[0002] Background description includes information that may be useful in understanding the present invention. It is not an admission that any of the information provided herein is prior art or relevant to the presently claimed invention, or that any publication specifically or implicitly referenced is prior art. [0003] Automobiles are a part of everyday life in urban and suburban communities. Automobile to move a person or things from a location to another, and a licensed driver is required to drive the vehicle on a road. Nowadays many highways are existing which connects many cities and states also. When a person drives the vehicle on these highways, usually they drive in a high speed, as there are no small cuts, and breakers on the road. Sometimes this results to accident and the person loses his life, and mostly accidents happen due to over speeding. [0004] Traffic signs are set ups by the side of a road for indicating information of speed applied to a vehicle travelling on the road, and the user needs to reduce the speed accordingly. However, when the person drives in a high speed, these signboards are missed by him, this ignorance may cause to accident, and compromise life and wealth.
[0005] Also, there is a technical problem in detecting the presence of traffic signs on the road and distinguishing two successive traffic signs present on the same road. Some traffic signs are large in size, which are easily seen by the driver, but the small sign which are by road side are not noticed by the driver. Therefore, a system is required to extract information from all the signboards available on the road large or small, and to alert the user to drive accordingly.

[0006] Existing systems recognize the traffic and the traffic lights and alert the user to stop or reduce the speed accordingly, but there is no system available to reduce the speed of the vehicle according to the traffic signs. [0007] There is a need to overcome above mentioned problem and other limitation of existing and utilized techniques by bringing a solution which is robust, accurate, fast, efficient, cost effective and simple.
OBJECTS OF THE PRESENT DISCLOSURE
[0008] Some of the objects of the present disclosure, which at least one
embodiment herein satisfies are as listed herein below.
[0009] An object of the present disclosure is to provide a system for
controlling speed of the vehicle.
[0010] Another object of the present disclosure is to provide a system for
controlling speed of the vehicle according to road.
[0011] Another object of the present disclosure is to provide a system for
recognizing the traffic signs available on road.
[0012] Another object of the present disclosure is to provide a system for
controlling speed of the vehicle according to speed indicating on a traffic signs on
road.
[0013] Another object of the invention is to provide a system for reminding a
driver about the available traffic signs on the road.
[0014] Another object of the invention is to provide a system to assist the
driver in controlling and maintaining the speed, when the driver is avoiding the
traffic signs.
[0015] Yet another object of the system is to provide a cost-effective system
which is easily attached and detached to any vehicle.
SUMMARY
[0016] The present disclosure relates generally to assistance system for a vehicle. More particularly, the present disclosure provides a system for

recognizing signboard on roadside and controlling the speed of the vehicle
accordingly.
[0017] An aspect of the present disclosure pertains to a system for controlling
speed of vehicle. The system may comprising a first image acquisition unit may
be configured on the vehicle and directed towards road ahead to capture a first set
of images of road, a second image acquisition unit may be configured to capture a
second set of images of a speedometer coupled in the vehicle, and a processing
unit may be operatively coupled with the first image acquisition unit and the
second image acquisition unit.
[0018] In an aspect, the processing unit may be configured to extract a
regulation speed indicated on a traffic signboards mounted on road from the
received first set of images, and real time speed of vehicle from the received
second set of images, compare the extracted regulation speed with the extracted
real time speed of vehicle, and generate a set of control signals, when the speed of
vehicle may be found above the extracted regulation speed indicated on the
signboard.
[0019] In an aspect, at least one actuator may be operatively coupled with the
vehicle, where upon receiving the set of control signals the at least one actuator
may control and maintain speed of the vehicle according to the extracted
regulation speed.
[0020] In an aspect, upon receiving the set of control signals the at least one
actuator unit may be configured to reduce the speed of vehicle corresponding to
the extracted regulation speed indicated on the signboard.
[0021] In an aspect, upon receiving the set of control signals, the at least one
actuator unit may lock the pedal that disable a user to increase the speed above
than the extracted regulation speed, where the pedal may be locked until the
control signals are received from the processing unit.
[0022] In an aspect, the processing unit may be configured to generate a set of
warning signals, when the real time speed of vehicle may be found above the
extracted regulation speed indicated on the signboard.

[0023] In an aspect, an alert unit may be coupled with the vehicle, and the
alert unit may be configured to receive the generated set of warning signals and
correspondingly produce acoustic sound.
[0024] In an aspect, a display unit may be coupled at the dashboard of the
vehicle, and the display unit may be configured to receive the generated set of
warning signals and correspondingly displays the extracted regulation speed
indicated on the signboard.
[0025] In an aspect, the system may include a power source coupled with the
first acquisition unit, the second acquisition unit, the processing unit, the alert
unit, and the display unit, where the power source may be configured to supply
electric power to the system.
[0026] In an aspect, the alert unit may be selected from a group of buzzer,
light emitting diode, and siren.
[0027] In an aspect, the display unit may be made of organic light emitting
diodes (OLED), light emitting diode (LED), and liquid crystal display (LCD).
BRIEF DESCRIPTION OF THE DRAWINGS
[0028] The accompanying drawings are included to provide a further
understanding of the present disclosure, and are incorporated in and constitute a
part of this specification. The drawings illustrate exemplary embodiments of the
present disclosure and, together with the description, serve to explain the
principles of the present disclosure.
[0029] The diagrams are for illustration only, which thus is not a limitation of
the present disclosure, and wherein:
[0030] FIG. 1 illustrates an exemplary view of image acquisition units of
proposed system for controlling speed of vehicle in accordance with an
embodiment of the present disclosure.
[0031] FIG. 2 illustrates a block diagram of a proposed system for controlling
speed of vehicle in accordance with an embodiment of the present disclosure.

[0032] FIG. 3 illustrates exemplary functional components of the processing unit of the proposed system for controlling speed of vehicle, in accordance with an embodiment of the present disclosure.
DETAILED DESCRIPTION
[0033] In the following description, numerous specific details are set forth in order to provide a thorough understanding of embodiments of the present invention. It will be apparent to one skilled in the art that embodiments of the present invention may be practiced without some of these specific details. [0034] The present disclosure relates generally to assistance system for a vehicle. More particularly, the present disclosure provides a system for recognizing signboard on roadside and controlling the speed of the vehicle accordingly.
[0035] The proposed system for automatically controlling speed of a vehicle is disclosed. The system can recognize signboard mounted on roadside and above side on road by image acquisitions units, and the system can facilitate in comparing speed indicated on the signboard with real time speed of the vehicle. In case, real time speed of the vehicle is more than the speed indicated on the signboard, the driver can be alerted to reduce the speed, and also pedal of the vehicle can be locked to prevent the driver from increasing the speed until next signboard is recognized on the road.
[0036] Referring to FIG. 1, where a system 100 for controlling speed of a vehicle is disclosed, the system 100 can be implemented with a vehicle 120. The system 100 can include a first image acquisition unit 102 and a second image acquisition unit 104, where the first image acquisition unit 102 can be positioned on top side of the vehicle 120 and can be directed towards road ahead for capturing images of the road. The second image acquisition unit 104 can be mounted inside the vehicle near a dashboard of the vehicle 120, where the second image acquisition unit 104 can be configured to capture images of speedometer coupled with the dashboard of the vehicle.

[0037] In an exemplary embodiment, the vehicle 120 can be any vehicle such as car, bus, truck, van, ambulance, and the likes, which can have a speedometer to display real time speed of the vehicle and a pedal to control the speed of the vehicle.
[0038] In an embodiment, the system can include a single image acquisition unit 102 for capturing images of the road and the dashboard both, the image acquisition unit 102 can be arranged such that one or more images of the road and the dashboard can be captured easily.
[0039] Referring to FIG. 2, the system 100 can a processing unit 106, which can be operatively coupled with the first acquisition unit 102 and the second acquisition unit 104. The processing unit 106 can be configured for receiving captured one or more images from the first acquisition unit 102 and the second acquisition unit 104. The system 100 can include at least one actuator unit 108 (interchangeably, referred as actuator 108, hereinafter), an alert unit 110, and a display unit 112, which can be operatively coupled with the processing unit 106. [0040] In an embodiment, the first acquisition unit 102 can be configured for capturing a first set of images of the road, and correspondingly generate a first set of signals. The first set of signals can be in electric form. In another embodiment, the first set of signals in electrical form can be transmitted to the processing unit 106. In yet another embodiment, the first set of images can include roadside images and above road images, as the signboard can be installed on roadside, and on above side of the road.
[0041] In an embodiment, the second acquisition unit 104 can be configured for capturing a second set of images of the speedometer coupled in the vehicle, and correspondingly generate a second set of signals to monitor real time speed of the vehicle. The second set of signals can be in electric form. In another embodiment, the second set of signals in electrical form can be transmitted to the processing unit 106.
[0042] In an embodiment, the system 100 can include the at least one actuator unit 108, the actuator 108 can be configured to control and maintain speed of the vehicle according to the extracted regulation speed.

[0043] In an embodiment, the actuator 108 can be configured to reduce the speed of vehicle corresponding to the extracted regulation speed indicated on the signboard by controlling the pedal of the vehicle.
[0044] In an embodiment, the actuator 108 can be configured to lock the pedal, and locking of the pedal can disable the user of vehicle to increase the speed above than the extracted regulation speed. In another embodiment, the pedal can be locked for a pre-defined amount of time or until another regulation speed limit is recognized.
[0045] In an embodiment, the system 100 can include the alert unit 110 to alert the user of the vehicle when the real time speed of the vehicle is greater than the regulation speed indicated on the signboard. In another embodiment, the alert unit 110 can be selected from a group of buzzer, light emitting diode, siren, and the likes.
[0046] In an exemplary embodiment, when the user drives the vehicle on the road with a speed of lOOKM/h, and a signboard on the roadside is detected by the first image acquisition unit 102 indicating maximum speed limit 60KM/h. The user can be alerted to reduce the speed to 60KM/h by an alarm or a sound can be produced to alert the user.
[0047] In an embodiment, the system 100 can include the display unit 112, and the display unit 112 can be positioned on the dashboard of the vehicle to alert the user of the vehicle when the real time speed of the vehicle is greater than the regulation speed indicated on the signboard, captured by the first image acquisition unit 102. The display unit 112 can be configured to alert the user of the vehicle when the real time speed of the vehicle is greater than the regulation speed indicated on the signboard. In another embodiment, the display unit 112 can be made of any or a combination of organic light emitting diodes (OLED), light emitting diode (LED), liquid crystal display (LCD), and the likes. [0048] In an exemplary embodiment, when the user drives the vehicle on the road with a speed of lOOKM/h, and a signboard on the roadside is detected by the first image acquisition unit 102 indicating maximum speed limit 60KM/h. The user can be alerted to reduce the speed to 60KM/h by indicating a text message on

the display unit 112. In another exemplary embodiment, the display unit 112 can blink also to alert the user.
[0049] As illustrated in FIG. 3, the processing unit 106 can include one or more processor(s). The one or more processor(s) 202 can be can be implemented as one or more microprocessors, microcomputers, microcontrollers, digital signal processors, central processing units, logic circuitries, and/or any devices that manipulate data based on operational instructions. Among other capabilities, the one or more processor(s) 202 can be configured to fetch and execute computer-readable instructions stored in a memory 204 of the processing unit 106. The memory 204 can store one or more computer-readable instructions or routines, which may be fetched and executed to create or share the data units over a network service. The memory 204 can include any non-transitory storage device including, for example, volatile memory such as RAM, or non-volatile memory such as EPROM, flash memory, and the like.
[0050] In an embodiment, the processing unit 106 can also include an interface(s) 206. The interface(s) 206 can include a variety of interfaces, for example, interfaces for data input and output devices, referred to as I/O devices, storage devices, and the like. The interface(s) 206 may facilitate communication of the processing unit 106 with various devices coupled to the processing unit 106. The interface(s) 206 may also provide a communication pathway for one or more components of processing unit 106. Examples of such components include, but are not limited to, processing engine(s) 208 and database 210. [0051] In an embodiment, the processing engine(s) 208 can be implemented as a combination of hardware and programming (for example, programmable instructions) to implement one or more functionalities of the processing engine(s) 208. In examples described herein, such combinations of hardware and programming may be implemented in several different ways. For example, the programming for the processing engine(s) 208 may be processor executable instructions stored on a non-transitory machine-readable storage medium and the hardware for the processing engine(s) 208 may include a processing resource (for example, one or more processors), to execute such instructions. In the present

examples, the machine-readable storage medium may store instructions that, when executed by the processing resource, implement the processing engine(s) 208. In such examples, the processing unit 106 can include the machine-readable storage medium storing the instructions and the processing resource to execute the instructions, or the machine-readable storage medium may be separate but accessible to processing unit 106 and the processing resource. In other examples, the processing engine(s) 208 may be implemented by electronic circuitry. The database 210 can include data that is either stored or generated as a result of functionalities implemented by any of the components of the processing engine(s) 208.
[0052] In an embodiment, the processing engine(s) 208 can include an extraction unit 212, a comparison unit 214, a signal generation unit 216, and other unit (s) 218. The other unit(s) 218 can implement functionalities that supplement applications or functions performed by the system 100 or the processing engine(s) 208.
[0053] The database 210 can include data that is either stored or generated as a result of functionalities implemented by any of the components of the processing engine(s) 208.
[0054] It would be appreciated that units being described are only exemplary units and any other unit or sub-unit may be included as part of the system 100. These units too may be merged or divided into super- units or sub-units as may be configured.
[0055] In an embodiment, the processing unit 106 can be configured to receive a first set of signals from the first image acquisition unit 102, and a second set of signals from the second image acquisition unit 104 in electric form. In an embodiment, the processing unit 106 can be configured to extract a third set of signals from the first set of signals with help of the extraction unit 212, where the third set of signals can pertain to the regulation speed indicated on the signboard. In another embodiment, the processing unit 106 can be configured to extract a fourth set of signals from the first set of signals with help of the extraction unit

212, where the fourth set of signals can pertain to the real time speed of the
vehicle.
[0056] In an embodiment, the extraction unit 212 can use one or more image
recognition techniques to recognize the signboard from the first set of images, and
the regulation speed from the signboard. In another embodiment, the extraction
unit 212 can also recognize the real time speed from the second set of images.
[0057] In an embodiment, the processing unit 106 can be configured to
compare the regulation speed and the real time speed with help of the comparison
unit 214. The processing unit 106 can be configured to generate a set of control
signals and a set of warning signals with help of the signal generation unit (216)
when the compared real time speed of the vehicle is found above the regulation
speed.
[0058] In an embodiment, the processing unit 106 can be configured to
actuate the alert unit 110 based on the received set of warning signals, where the
set of warning signals can facilitate in producing acoustic sound to alert the user
to control the speed of the vehicle.
[0059] In an embodiment, the processing unit 106 can be configured to
actuate the display unit 112 based on the received set of warning signals, where
the set of warning signals can facilitate in alerting the user to control the speed of
the vehicle.
[0060] In an embodiment, upon receiving alert through the alert unit 110 and
the display unit 112, the user of the vehicle can reduce the speed by itself, and
upon reducing the speed of the vehicle to the regulation speed, the processing unit
106 can suspend transmission of the set of warning signals, unit another
regulation speed can be detected.
[0061] In an embodiment, when the real time speed of the vehicle cannot be
reduced within a pre-defined amount of time, the processing unit 106 can transmit
the generated set of control signals.
[0062] In an embodiment, the processing unit 106 can be configured to
actuate the actuator 108 based on the received set of control signals, where the

actuator 108 can facilitate in controlling the pedal of the vehicle to reduce the speed of vehicle to the regulation speed.
[0063] In an exemplary embodiment, the actuator 108 can reduce the speed of vehicle gradually without the user's intervention. The pedal can be controlled by the actuator 108 such that the speed is reduced smoothly as reduced by the user. [0064] In an embodiment, upon reducing the speed to the regulation speed by the user or automatically, the actuator can lock the pedal to disable the user to increase the speed for the pre-defined amount of time.
[0065] In an exemplary embodiment, when the user drives the vehicle on the road with a speed of lOOKM/h, and a signboard on the roadside is detected by the first image acquisition unit 102 indicating maximum speed limit 60KM/h. The user can be alerted to reduce the speed to 60KM/h by producing the sound and indicating the text message on the display unit 112. If the speed of the vehicle is not reduced within 10 seconds, the actuator 108 can automatically reduced the speed smoothly to 60KM/h, and also locks the pedal for 15-20 minutes or until another regulation speed is detected.
[0066] In an embodiment, the system 100 can include a power source to provide power supply to the system 100. The power source can be operatively coupled with the first acquisition unit 102, the second acquisition unit 104, the processing unit 106, the alert unit 110, and the display unit 112. [0067] In an embodiment, the power source may include any or a combination of rechargeable battery, lithium (Li) ion cell, rechargeable cells, solar cell, solar battery, electrochemical cells, storage battery, secondary cell, and the likes. [0068] In an embodiment, existing power source of the vehicle which provides power to dashboard can be connect with the system 100 to provide power supply.
[0069] While the foregoing describes various embodiments of the invention, other and further embodiments of the invention may be devised without departing from the basic scope thereof. The scope of the invention is determined by the claims that follow. The invention is not limited to the described embodiments, versions or examples, which are included to enable a person having ordinary skill

in the art to make and use the invention when combined with information and knowledge available to the person having ordinary skill in the art.
ADVANTAGES OF THE PRESENT DISCLOSURE
[0070] The present disclosure provides a system for controlling speed of the
vehicle.
[0071] The present disclosure provides a system for controlling speed of the
vehicle according to road.
[0072] The present disclosure provides a system for recognizing the traffic
signs available on road.
[0073] The present disclosure provides a system for controlling speed of the
vehicle according to speed indicating on a traffic signs on road.
[0074] The present disclosure provides a system for reminding a driver about
the available traffic signs on the road.
[0075] The present disclosure provides a system to assist the driver in
controlling and maintaining the speed, when the driver is avoiding the traffic
signs.
[0076] The present disclosure provides a a cost-effective system which is
easily attached and detached to any vehicle.

We Claim:

1. A system for controlling speed of vehicle, said system comprising:
a first image acquisition unit configured on the vehicle and directed towards road ahead to capture a first set of images of road;
a second image acquisition unit configured to capture a second set of images of a speedometer coupled in the vehicle;
a processing unit operatively coupled with the first image acquisition unit and the second image acquisition unit, the processing unit configured to:
extract a regulation speed indicated on a traffic signboards mounted on road from the received first set of images;
extract real time speed of vehicle from the received second set of images;
compare the extracted regulation speed with the extracted real time speed of vehicle; and
generate a set of control signals, when the speed of vehicle found above the extracted regulation speed indicated on the signboard; and at least one actuator operatively coupled with the vehicle, wherein upon receiving the set of control signals the at least one actuator control and maintain speed of the vehicle according to the extracted regulation speed.
2. The system as claimed in claim 1, wherein upon receiving the set of control signals the at least one actuator unit is configured to reduce the speed of vehicle corresponding to the extracted regulation speed indicated on the signboard.
3. The system as claimed in claim 2, wherein upon receiving the set of control signals, the at least one actuator unit locks the pedal that disable a user to increase the speed above than the extracted regulation speed, wherein the pedal is locked until the control signals are received from the processing unit.
4. The system as claimed in claim 1, wherein the processing unit is configured to generate a set of warning signals, when the real time speed of vehicle found above the extracted regulation speed indicated on the signboard.

5. The system as claimed in claim 1, wherein an alert unit is coupled with the vehicle, wherein the alert unit is configured to receive the generated set of warning signals and correspondingly produce acoustic sound.
6. The system as claimed in claim 1, wherein a display unit coupled at the dashboard of the vehicle, wherein the display unit is configured to receive the generated set of warning signals and correspondingly displays the extracted regulation speed indicated on the signboard.
7. The system as claimed in claim 1, wherein the system comprises a power source coupled with the first acquisition unit, the second acquisition unit, the processing unit, the alert unit, and the display unit, wherein the power source is configured to supply electric power to the system.
8. The system as claimed in claim 1, wherein the alert unit is selected from a group of buzzer, light emitting diode, and siren.
9. The system as claimed in claim 1, wherein the display unit is made of organic light emitting diodes (OLED), light emitting diode (LED), and liquid crystal display (LCD).