Abstract:
An initiative warning system comprises a protective area for accommodating objects and defining an area network, a plurality of sensors respectively installed on the objects, a detecting mainframe connected with the area network, and a terminal communicated with the detecting mainframe through the area network. Wherein, the arrangement of the area network promotes the connection between the detecting main frame and substitutes the conventional wiring allocation, so as to streamline installations of the detecting mainframe and the sensors. Additionally, the sensors can regularly transmit oscillating signals to the detecting mainframe for a further recognition and comparison. Thus, a controlling signal would be timely sent to trigger a warning command showing on the terminal through the area network when the compatible signals between the sensors and the detecting mainframe are not detected by the detecting mainframe, thereby preferably attaining an active warning effect.

Description:
BACKGROUND OF THE INVENTION 
       [0001]    1. Field of the Invention 
         [0002]    The present invention relates to a safety system, particularly to an initiative warning system. 
         [0003]    2. Description of the Related Art 
         [0004]    Usually, houses or shops would equip with alarm systems or safety devices indoor to prevent or improve the occurrence of the burglary. Referring to  FIG. 1  shows a conventional alarm system  1  that essentially comprises a connecting wire  10  distributively arranged around a house or a building  2 , a plurality of sensors  11  connecting with the wire  10 , and a detecting mainframe  12  communicated with the wire  10 . Wherein, the sensors  11  are respectively installed on the doors  21  and windows  22  of the house  2 . The connecting wire  10  separately surrounds the house  2  accordingly to the positions of the sensors  11 , so as to output the signal generated by the sensors  11  to the detecting mainframe  12 . A plurality of apertures are commonly disposed at the positions of the sensors  11  for acting as shelters to hide the connecting wire  10 . In addition, each sensor  11  further includes a magnetic reed sensor  111  and a signal wire  112  outwardly extended from the magnetic reed sensor  111 , so that the signal wire  112  is able to connect and communicate with the connecting wire  10 . Moreover, the detecting mainframe  12  includes a processing unit  121  attached to the connecting wire  10  and a siren  122  connected to the processing unit  121 . 
         [0005]    In use, the sensors  11  are respectively installed on the doors  21  and windows  22 , and the connecting wire  10  is accordingly arranged around the house  2  and connected with the detecting mainframe  12  for making predetermined settings. Afterward, when people are out of the house  2  or not in business hours, the magnetic reed sensors  111  would sense the motions of the doors  21  and the windows  22  while they are opened and hence drive a connection with the connecting wire  10  to trigger the sounding of the siren  122  for cautioning the thief. 
         [0006]    However, the conventional alarm system  1  has some shortcomings:
   1. Maybe the arrangement of the apertures can be previously reserved for hiding the connecting wire  10  to maintain a good appearance while installing, but the dispositions of the apertures are still limited without departing from the extent of the house. If the installation extends, users inevitably need to pay more attention to dispose more connecting wires  10  for accomplishing the wiring process as such wiring process is usually complicated. With respect to the current application, the distribution of the connecting wire  10  and the installation of the detecting mainframe  12  are essentially placed complying with numbers of the doors  21  and the windows  22  and with the distance therebetween, the more the doors  21  and windows  22  are included, the more complicated arrangement of the connecting wires  10  is required. Thus, the environment within the house  2  would become untidiness due to the complex allocation, and the over installing extent of the system also incur an inconvenience.   2. Further, the sensors  11  are suitably installed on the doors  21  and the windows  22  within a limitedly closed area (e.g. the house  2 ) but are unable to be well applied to an open area or portable objects. As long as intruders malevolently break the sensors  11  and rush into the house, the valuable property therein would be apparently free to the intruders. In this manner, the allowable protective scope of the conventional alarm system  1  is restricted. Further, if the protective scope is directed to an open area which is free to enter, such as a motel and school, the occurrence of the pilferage is on the increase in those places because the alarm system  1  becomes useless and fails to take any threatens to the intruders. Therefore, the conventional alarm system  1  still requires improvements.   
 
       SUMMARY OF THE INVENTION 
       [0009]    Therefore, the objective of the present invention is to offer an initiative warning system that attains the merits of a convenient installation and an instant warning effect. 
         [0010]    The initiative warning system in accordance with the present invention essentially comprises a protective area for placing objects, an area network disposed within the protective area and communicated with an exterior, a plurality of sensors respectively installed on the objects, a detecting mainframe connected with the area network, and a terminal connected with the detecting mainframe through the area network. Wherein, the sensors installed on the objects output signals to the detecting mainframe, and which further confirms receipt of the signals for executing a decoding, an analysis, and a comparison, and recognizes whether the signals are in response to a predetermined code stored therein. Once the detecting mainframe cannot receive the signals from the sensors, a controlling signal would be output via the area network to the terminal to advance a warning. Therefore, the present alarm system needs not the complicated wiring and significantly applies the communication of the area network and the above elements to achieve an effective warning efficiency. 
         [0011]    The advantages of the present invention will become more apparent by reading the following descriptions with the relating drawings. 
     
    
     
       BRIEF DESCRIPTION OF THE DRAWINGS 
         [0012]      FIG. 1  is a plan view of a conventional alarm system; 
           [0013]      FIG. 2  is a flow diagram of a first embodiment of the present invention; 
           [0014]      FIG. 3  is a partial plan view of the present invention; 
           [0015]      FIG. 4  is a whole plan view of the first embodiment; 
           [0016]      FIG. 5  is a flow diagram of a second embodiment of the present invention; and 
           [0017]      FIG. 6  is a whole plan view of the second embodiment; 
       
    
    
     DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS 
       [0018]    Referring to  FIGS. 2 and 3  shows a first preferred embodiment of the initiative warning system  3  of the present invention which comprises a protective area  4  defining an area network  30  communicated with the outside, a plurality of sensors  31  respectively disposed on different objects  5 , a detecting mainframe  32  attached to the area network  30 , and a terminal  33  connected to the detecting mainframe  32  through the area network  30 . Wherein, the protective area  4  could be as a closed area (e.g. a home) or an open-public area (e.g. a school, a superstore, or a motel). In following descriptions the protective area  4  is directed to a motel which contains multiple objects and equipments  5  placed in each room, for example a TV, various electric appliances and ornaments. 
         [0019]    Further, each sensor  31  has a sensor power supplier  311  respectively connected to an encoder  312  and a transmitter  313 . Wherein, the sensor power supplier  311  could be a dry battery or be contacted with an electric supplier of the objects  5  (not shown), so that the sensor power supplier  311  provides the encoder  312  and the transmitter  313  with electricity. Besides, the encoder  312  correspondingly generates an encoded signal compatible with a previously stored code within the detecting mainframe  32  in time of production for giving specific identities of the sensor  31  and the detecting mainframe  32 . The encoder  312  could apply an oscillator (not shown) to transform the encoded signal into an analog signal that is further transmitted from the transmitter  313  to the detecting mainframe  32 . Alternatively, the transmitter  313  could be employed to incessantly or intermittently transmit the analog signal to the detecting mainframe  32 . Herein, the intermittent radiation of the signal sent from the transmitter  313  is adopted in the embodiment for reducing the power consumption of the sensor power supplier  311 . 
         [0020]    Moreover, the detecting main frame  32  has a main frame power supplier  321  respectively connected to a receiving device  322  and a comparing device  323 . Wherein, the receiving device  322  receives the analog signal transmitted by the transmitter  313  and thence proceeds to recognize, decode, and transform the analog signal into a decoded signal for the comparing device  323  to read. In addition, the comparing device  323  includes a memory unit  324  saving the aforementioned predetermined stored code in correspondence with the encoded signal created by the sensors  31  and a processing unit  325  connected with the memory unit  324 ; wherein, the processing unit  325  acts to confirm receipt of the above decoded signal sent by the receiving device  322  and to compare the current confirmed decoded signal with the predetermined code, thereby identifying if such decoded signal coincides with the previous encoded signal from the sensors  31 . As long as the processing unit  325  cannot receive any signal transmitted by the sensors  31 , the processing unit  325  would send a controlling signal to the terminal  33  through the area network  30 . 
         [0021]    In addition, the terminal  33  has an operating unit  331  receiving the controlling signal of the detecting mainframe  32  and a display unit  6  connected with the operating unit  331 . Wherein, the operating unit  331  sends a warning command responsive to the controlling signal for triggering the display unit  6 , so as to achieve a warning effect. The display unit  6  can be a monitor screen, a warning light, a siren etc., and it is adopted as a screen in the embodiment. 
         [0022]    Referring to  FIGS. 2 ,  3  and  4 , while installing, the present system  3  is initially instituted within each room of the protective area  4  (e.g. a motel), and the sensors  31  are installed on the movable protected objects  5  within the room, for instance TVs, DVD players, phones, desk lamps, electric appliances, paintings, ornaments, and so on. Further, the sensor power supplier  311  and the mainframe power supplier  321  are linked to a power cord of the electric appliance and directly inserted into a plug (not shown) for sufficiently supplying electricity to the sensor  31  and the detecting mainframe  32 . Further, the detecting mainframe  32 , shown in  FIG. 3 , is fixed and hidden in each protective area  4  for connecting with the area network  30 , and the terminal  33  is linked to the area network  30  and placed within a manager room of the motel for a united management, hence accomplishing the advanced installation without the complex wiring. 
         [0023]    In operation, the encoder  312  on each object  5  driven the sensor power supplier  311  creates an encoded signal and thence transform it into an analog signal sends it to the transmitter  313 . The encoded signal is emitted via the transmitter. Accordingly, the detecting mainframe  32  begins to detect receipt of the analog signal intermittently sent by the transmitter  313 . When the receiving device  322  receives the analog signal, it starts to analyze and decode the analog signal into a decoded signal and emits the decoded signal to the processing units  325  for further confirming, reading, and comparing. In this manner, the current confirmed decoded signal would be compared with a predetermined code stored in the memory unit  324  to recognize if the encoded signal of the sensor  31  keeps transmitted and belongs to the pair compatible to the stored code of the detecting mainframe  32  so as to prevent the system  3  from being promiscuous by strange signals. If the comparing device  323  keeps receiving the current confirmed decoded signal identical to the stored code, the processing unit  325  would not be inaction. Oppositely, if the detecting mainframe  32  does not acknowledge receipt of the identical signal generated from either of the sensors  31 , the processing unit  325  would instantly output a controlling signal to the terminal  33  via the area network  30 , and the operating unit  331  thence sends a warning command to the display unit  6 , on which cautioned messages or images would be left for catching staff&#39;s attention in the manager room, thus efficiently attaining the warning effect and initiative alarm efficiency. 
         [0024]    From above, the detecting mainframe  32  receives the oscillating signals (analog signals) periodically transmitted by the sensors  31  so as to prevent the premature power or battery exhaustion. Further, the detecting mainframe  32  possesses a wide receiving range without extra wiring so as to preferably accept mutual transmissions between those signals of the elements. If one of the objects  5  is away from the receiving range, the detecting mainframe  32  receives no signal from that sensor  31  and triggers the processing unit  325  to actively send a controlling signal to the terminal  33  via the area network  30 , thereby efficiently establishing the cautioned information on the display unit  6  for the staff to facilely regard the condition of the objects  5  in each room, thus increasing the using convenience. 
         [0025]    Referring to  FIG. 5  shows a second preferred embodiment of the present invention that comprises sensors  31 , a detecting mainframe  32 , and a terminal  33 , and the correlation of interrelated elements are as the same as that of the first embodiment. Particularly, this embodiment includes a transforming device  332  disposed in the terminal  33  connected with the operating unit  331  of the terminal  33  and a receiving unit  7  accepting a programmed signal generated from the transforming device  332 . Wherein, the transforming device  332  is comprised of a compiler  333  and an emitter  334  connected with the compiler  333 . The compiler  333  serves to receive the warning command from the operating unit  331  and concurrently re-decodes the controlling signal of the detecting mainframe  32  into a newly programmed signal. The programmed signal is thence transmitted to the receiving unit  7  via the emitter  334 . The receiving unit  7  could be as a portable equipment for the users to promptly catch the situation of the terminal  33  all the time, for example, a cell phone, a wireless transceiver, and proper devices could be adopted to increase the using convenience. 
         [0026]    Referring to  FIGS. 5 and 6 , the installation and operation of this embodiment as the same as the first embodiment are herein omitted. When the operating unit  331  transmits the warning command to the display unit  6 , the compiler  333  of the transforming device  332  would concurrently receive the command and generate a newly programmed signal with respect to the controlling signal of the mainframe  32 , so that the programmed signal is thence output from the emitter  334  to the receiving unit  7 . Therefore, although the staff may be far away from the display unit  6 , they can be instantly bound for the room to check the conditions of the protected objects  5  while noticing the warning messages under the assistance of the receiving unit  7 , so as to competently prevent from stealing and enhance an active warning efficiency. 
         [0027]    To sum up, the present invention takes advantage of the incessant or intermittent signals transmission between the sensors and the detecting mainframe for confirming if the protected objects are well placed within the protective area. Once the objects are taken away, the area network would immediately trigger the terminal for obtaining a timely and active warning effect, so as to effectively prevent the objects from being stolen. Thus, the present invention not only applies an effective correlation between the correlated elements but utilizes the area network to accomplish a preferable warning effect via the initiative notice of signals, hence attaining a streamlined installation and a convenient utilization and application. 
         [0028]    Besides the above preferred embodiments, it will be understood that various modifications may be made and the appended claims are intended to cover all modifications without departing from the spirit and the scope of the invention.