Abstract:
A road traffic alarm and warning device, moveably mounted to an enclosure of a car and configured to notify a traffic obstacle and coupled to a main controller, includes a first communication unit configured to couple to the main controller and send out a control signal. An operation unit is configured to receive the control signal and output a driving signal according to the control signal and a driving unit is configured to receive the driving signal and move as required driving the alarm device to move out of the enclosure and into action. An alarm system with the alarm device is further disclosed.

Description:
FIELD 
       [0001]    The subject matter herein generally relates to traffic safety and an alarm system with the alarm device. 
       BACKGROUND 
       [0002]    An alarm device can be a tripod in a car. When an accident occurs, a warning tripod should be placed at a safe distance. 
     
    
     
       BRIEF DESCRIPTION OF THE DRAWINGS 
         [0003]    Implementations of the present technology will now be described, by way of example only, with reference to the attached figures. 
           [0004]      FIG. 1  is a block diagram of an embodiment of an alarm system with an alarm device. 
           [0005]      FIG. 2  is a schematic diagram of the alarm device of  FIG. 1 . 
           [0006]      FIG. 3  is a block diagram of the alarm device and a main controller of the alarm system of  FIG. 1 . 
       
    
    
     DETAILED DESCRIPTION 
       [0007]    It will be appreciated that for simplicity and clarity of illustration, where appropriate, reference numerals have been repeated among the different figures to indicate corresponding or analogous elements. In addition, numerous specific details are set forth in order to provide a thorough understanding of the embodiments described herein. However, it will be understood by those of ordinary skill in the art that the embodiments described herein can be practiced without these specific details. In other instances, methods, procedures, and components have not been described in detail so as not to obscure the related relevant feature being described. Also, the description is not to be considered as limiting the scope of the embodiments described herein. The drawings are not necessarily to scale and the proportions of certain parts may be exaggerated to better illustrate details and features of the present disclosure. 
         [0008]    Several definitions that apply throughout this disclosure will now be presented. 
         [0009]    The term “substantially” is defined to be essentially conforming to the particular dimension, shape, or other feature that the term modifies, such that the component need not be exact. For example, “substantially cylindrical” means that the object resembles a cylinder, but can have one or more deviations from a true cylinder. The term “comprising,” when utilized, means “including, but not necessarily limited to”; it specifically indicates open-ended inclusion or membership in the so-described combination, group, series, and the like. 
         [0010]      FIG. 1  and  FIG. 2  illustrate a traffic alarm system  400  in an embodiment. The alarm system  400  can include an alarm device  100  and a main controller  200 . The main controller  200  is wirelessly coupled to the alarm device  100 . In an embodiment, the alarm device  100  is a tripod, and the main controller  200  is a mobile phone. 
         [0011]      FIG. 3  illustrates that the alarm device  100  can include a switch  10 , a first communication unit  20 , an operation unit  30 , a driving unit  40 , an alarm unit  50 , a recording unit  60 , and a power supply unit  70 . 
         [0012]    The switch  10  is configured to enable the alarm device  100 . When the switch  10  is switched on, the alarm device  100  is activated. 
         [0013]    The first communication unit  20  is coupled to the main controller  200 . The main controller  200  is configured to control the first communication unit  20  to send a control signal to the operation unit  30 . 
         [0014]    The first communication unit  20  is further coupled to a cloud net  300 , which has a guiding system, such as a guide map. When the switch  10  is switched on, the first communication unit  20  send a global positioning system (GPS) information to the guiding system. The guiding system receives the GPS information and notifies location information to other drivers, so that other drivers can change direction in time. 
         [0015]    The operation unit  30  is configured to output a driving single to the driving unit  40  according to the control signal. 
         [0016]    The driving unit  40  is configured to receive the driving signal and drive the alarm device  100  to move according to the driving signal. 
         [0017]    The alarm unit  50  is configured to output alarm to warn that a traffic obstacle has occurred. In at least one embodiment, the alarm signal is a squealing sound or flashing lights. 
         [0018]    The recording unit  60  is configured to record multimedia data of the location, where the traffic obstacle is. The recording unit  60  can include a camera and a microphone. When the switch  10  is switched on, the recording unit  60  records multimedia data and sends the multimedia data to the main controller  200  via the first communication unit  20 . In other embodiment, the recording unit  60  sends the multimedia data to any electronic device coupled to the first communication unit  20 . 
         [0019]    The power supply unit  70  is configured to supply power to the first communication unit  20 , the operation unit  30 , the driving unit  40 , the alarm unit  50 , and the recording unit  60 . The power supply unit  70  supplies power wirelessly or through wires. 
         [0020]    The main controller  200  can include a second communication unit  220  and a control unit  230 . 
         [0021]    The second communication unit  220  is configured to communicate with the first communication unit  20 . In at least one embodiment, each of the second communication unit  220  and the first communication unit  20  is a BLUETOOTH module. 
         [0022]    The control unit  230  can include a plurality of direction buttons (not shown) configured to control the alarm device  100  to move accordingly. 
         [0023]    For example, when a front button of the control unit  230  is pressed, the control unit  230  outputs a first control signal to the second communication unit  220 , the first communication unit  20  outputs a first communication result to the operation unit  30 , the operation unit  30  outputs a first driving signal to the driving unit  40 , and the driving unit  40  drives the alarm device  100  to move forward according to the first driving signal. 
         [0024]    When a back button of the control unit  230  is pressed, the control unit  230  outputs a second control signal to the second communication unit  220 , the first communication unit  20  outputs a second communication result to the operation unit  30 , the operation unit  30  outputs a second driving signal to the driving unit  40 , and the driving unit  40  drives the alarm device  100  to move back according to the second driving signal. 
         [0025]    Thus, the alarm device  100  can automatically be moved to a safe distance to warn other drivers when a road obstacle is present, by the main controller  200 . 
         [0026]    When needed, the switched  10  is switched on, the alarm device  100  is moved automatically, the control unit  230  can control the alarm device  100  to move to a suitable location. The first communication unit  20  sends a local GPS information to the guiding system to notify other drivers. The alarm unit  50  also outputs alarm. The recording unit  60  records multimedia data of the accident. 
         [0027]    The embodiments shown and described above are only examples. Many details are often found in the art such as the other features of a alarm device. Therefore, many such details are neither shown nor described. Even though numerous characteristics and advantages of the present technology have been set forth in the foregoing description, together with details of the structure and function of the present disclosure, the disclosure is illustrative only, and changes may be made in the details, including in matters of shape, size, and arrangement of the parts within the principles of the present disclosure, up to and including the full extent established by the broad general meaning of the terms used in the claims. It will therefore be appreciated that the embodiments described above may be modified within the scope of the claims.