Abstract:
The present invention relates to a property supervisory control system. The property supervisory control system operates with an image-capturing device, combines, and outputs a warning signal and image record by the image-capturing device to a supervisory control center. The security service personnel in the supervisory control center can be notified with the type of an object and a displacement of the object by the property supervisory control system when the object is moved abnormally in a scanning region of a wireless receiver. Because the wireless emitter transmits signals only when the object is moved, the power life of the battery of the wireless emitter could be extended.

Description:
BACKGROUND OF THE INVENTION 
   1. Field of the Invention 
   The present invention generally relates to a property supervisory control system and, more particularly, to a property supervisory control system operating with an image capturing device for combining and outputting a warning signal and image record by the image capturing device to a supervisory control center. 
   2. Description of the Related Art 
   Conventionally, a burglar alarm includes a signal emitter and an alarm, wherein the signal emitter is attached to an object, and the alarm is positioned at an entrance to detect whether the object attached the signal emitter is passing the entrance. Theoretically, the burglar alarm is capable of preventing the object from being stolen, however, a lot of inconvenience exists. For example, if a thief does not pass through the entrance or the signal emitter is out of power, the alarm cannot work normally and cannot detect whether the object is brought out. In addition, the alarm only is not enough to hold thieves back. Hence, there is a need to improve the conventional burglar alarm. 
   Another conventional burglar alarm includes a signal emitter and an alarm. The emitter can be taken with a user, and the alarm includes a buzzer and a switch to control the alarm. When the distance between the signal emitter and the alarm is longer than a predetermined distance, the alarm rings. A disadvantage of the conventional burglar is the switch which may be turned off by a thief. When the alarm is turned off, the user may not know his/her property is being stolen. 
   Furthermore, a monitor is suitable for security service personnel to observe the condition of the property, but the security service personnel may not recognize all of the property. For example, during an exhibition in a museum or a gallery, the security service personnel watching the monitor may only notice that one or more objects have disappeared, but the monitor is not capable of starting an alarm to warm the security service personnel when a thief is trying to bring the object out. If the security service personnel cannot always keep their eyes on the monitor, the property cannot be efficiently controlled and protected from being stolen. 
   There is thus a general need for improving a property supervisory control system. 
   SUMMARY OF THE INVENTION 
   The present invention is a property supervisory control system which operates with an image capturing device, and combines and outputs a warning signal and image record by the image capturing device to a supervisory control center. The property supervisory control system includes a wireless emitter and a signal processor, wherein the wireless emitter is attached to an object. The wireless emitter includes a displacement detector, an encoder, an emitting circuit, and a power supply, wherein the encoder defines a code name of the object. When the object is moved, the displacement detector is started, and the power supply drives the encoder to output the code named by the emitting circuit. The signal processor includes a wireless receiver, a central processor, and an image synthesizer, wherein the wireless receiver includes a receiving circuit to receive the code name from the wireless emitter and a decoder to decode the code name. The central processor receives the code name decoded by the decoder and transmits a warning command according to the code name decoded by the decoder. The image synthesizer receives the image from the image capturing device and the warning command from the central processor. The image synthesizer includes a command decoder, an image counter, an image memory, an alphascope, and a synthesizer, wherein the command decoder unscrambles the warning command. The alphascope generates a text according to the warning command unscrambled by the command decoder. The image counter records the text including a coordinates value displayed in the image memory. The synthesizer generates a combination image of the text and the image recorded by the image capturing device according to the coordinate value in the text and transmits the combination image to the supervisory control center. As mentioned above, the security service personnel can be notified with the code name and the displacement of the object by the property supervisory control system when the object is moved abnormally in the scanning region of the wireless receiver. The property supervisory control system in the present invention is capable of being implanted in a network system with an image capturing device to immediately and efficiently control and protect the property without purchasing new image capturing devices. 
   Moreover, because the wireless emitter transmits signals only when the object is moved, the power life of the battery of the wireless emitter could be extended. 
   In addition, the property supervisory control system further includes an alarm checking device disposed in the supervisory control center for receiving the combination image. The alarm checking device includes a signal synchronizing separator, a position converter, and a central processor, wherein the central processor transmits an alarm signal to start an alarm when the central processor determines an usual condition by the signal synchronizing separator and the position converter inspects and regards the combination image as an unusual condition. Therefore, the property supervisory control system can help the security service personnel to observe the property and notify the security service that the object may have been moved. Thus, the property supervisory control system could be more practical. 
   It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the present invention, as claimed. 
   The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate several embodiments of the present invention and together with the description, serve to explain the principles of the present invention. 

   
     BRIEF DESCRIPTION OF THE DRAWINGS 
       FIG. 1  shows an operating environment of a property supervisory control system of an embodiment of the present invention; 
       FIG. 2  is a block diagram of the property supervisory control system of the present invention; 
       FIG. 3  is a block diagram of a wireless emitter of the property supervisory control system of the present invention; 
       FIG. 4  is a block diagram of a wireless receiver of the property supervisory control system of the present invention; 
       FIG. 5  is a block diagram of an image synthesizer of the property supervisory control system of the present invention; 
       FIG. 6  is a block diagram of a property supervisory control system of another embodiment of the present invention; 
       FIG. 7  is a block diagram of a signal detector of the property supervisory control system of the present invention; 
       FIG. 8  is a block diagram of an alarm-checking device of the property supervisory control system of the present invention. 
   

   DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT 
     FIG. 1  shows an operating environment of an embodiment of a property supervisory control system of the present invention.  FIG. 2  is a block diagram of the property supervisory control system of the present invention. In the embodiment, the property supervisory control system includes a wireless emitter  10  and a signal processor  20 . The wireless emitter is attached to an object  70 , and the size of the wireless emitter is preferred to be the same as the size of a CF card. As shown in  FIG. 3 , the wireless emitter includes a displacement detector  11 , an encoder  12 , an emitting circuit  13 , and a power supply  14 . The encoder  12  defines a code name of the object  70 , wherein the object  70  could be a work of art, and the code name of the object  70  could be defined by a user. When the object  70  is moved, the displacement detector  11  can detect the movement of the object  70 , whereafter the displacement detector  11  starts the power supply  14  to drive the encoder  12  for transmitting the code name of the object by the emitting circuit  13 . In the present embodiment, the displacement detect  11  would not be activated when no observed object is moved in the observing region of the displacement detector  11 , and thus, the power life of the battery of the wireless emitter  10  could be extended. Furthermore, the displacement detector  11  can further define a predetermined distance, for example 10 cm. When the length of the displacement of the object  70  is longer than the predetermined distance, the code name of the object  70  is transmitted by the wireless emitter  10 . An advantage of the predetermined distance is to prevent the displacement detector  11  from being erroneously activated resulted from unavoidable shaking which may be a result the security service personnel&#39;s mistake. 
   In the present embodiment, the signal processor  20  is attached to an image capturing device  30 , wherein the image capturing device may be a video camera or other image capturing means. The signal processor  20  includes a wireless receiver  21 , a central processor  22 , an image synthesizer  23 , and a power supply  24 , as shown in  FIG. 4 . The wireless receiver  21  includes a receiving circuit  211  and a decoder  212 . When the wireless receiver  21  receives the code name from the wireless emitter  10 , the decoder  212  decodes the code name and outputs a digital data regarding the object  70 , for example a digital data recoded as “01011010” which is capable of being processed by the central processor  22 . Moreover, when the central processor  22  receives decoded signals, the central processor proceeds different executions according to different decoded signals. For instance, when the decoded signal includes all the information to identify the object  70 , a warning command is transmitted to the image synthesizer  23 . In addition, the property supervisory control system further includes an alarm  201  attached to the image capturing device  30 . When the central processor  22  transmits a warning command corresponding to the object  70  to the image synthesizer  23 , an alarm signal is simultaneously transmitted to start the alarm  201 . The alarm may be a buzzer or a lamp signal. As mentioned above, when the object  70  is unusually moved, the alarm can generate a warning signal immediately to prevent the object  70  from being stolen. 
   In the present embodiment, as shown in  FIG. 5 , the image synthesizer  23  is capable of receiving the image from the image capturing device  30  and the warning command from the central processor  22 . The image synthesizer  23  includes a command decoder  231 , an image counter  232 , an image memory  233 , an alphascope  234 , and a synthesizer  235 . The command decoder  231  unscrambles the warning command transmitted by the central processor  22 . The alphascope  234  generates a text according to the warning command unscrambled by the command decoder  231 , wherein the image counter  232  records the text including a coordinates value (X,Y) displayed in the image memory  233 . For instance, the text may be displayed as that one work of art has been unusually moved. The image counter  232  includes a signal synchronizing separator  236 , a vertical signal synchronizing counter  237 , and a horizontal signal synchronizing counter  238  to receive, synchronize, and calculate the image signal from the image capturing device  30 . The synchronized image signal is stored in the image memory  233 . Hence, the synthesizer  235  generates a combination image of the text and the image recorded by the image capturing device according to the coordinate value in the text and transmits the combination image to the supervisory control center. 
   As shown in  FIG. 6 , the wireless receiver  21  may be a signal detector  50  to detect whether there is abnormal signal input.  FIG. 7  shows a block diagram of the signal detector  50 . The signal detector  50  includes a radio frequency receiver (RF receiver)  51 , a filter  52 , a signal amplifier  53 , a direct transforming receiver  54 , and an information transforming device  55 , wherein the RF receiver  51  receives an external radio frequency signal (RF signal). The filter  52  filters the external RF signal and transmits the RF signal to the signal amplifier  53  to execute the signal amplifying process. Moreover, the direct transforming receiver  54  receives the RF signal amplified by the signal amplifier and transforms the RF signal amplified into a base band signal. In the present embodiment, the information transforming device includes a position comparator  56 , wherein the base band signal is transmitted to the position comparator  56  and compared with a predetermined distance. When the base band signal is larger than the predetermined distance, the base band signal is further transmitted to the central processor to control the image synthesizer  23  generating and transmitting the combination image to the supervisory control center  40 . 
   Furthermore, as shown in  FIG. 8 , the property supervisory control system further includes an alarm checking device  60  for receiving the combination image. The alarm checking device includes a signal synchronizing separator  61 , a position converter  62 , and a central processor  63 . The signal synchronizing separator  61  synchronously transmits the combination image to the central processor  63 . The position converter  62  detects the moving distance of the object  70  according to the strength of the signal emitted by the wireless emitter. When the central processor  63  deems the combination image outputted by the image synthesizer  23  as an abnormal signal according the output of the signal synchronizing separator  61  and the position converter  62 , the central processor  63  transmits a warning signal to start an alarm  64 . The alarm may be a buzzer or a lamp signal. The security service personnel  40 , therefore, can be notified with the audio alarm signs and can execute emergency processes immediately. 
   Other embodiments of the present invention will be apparent to those skilled in the art from consideration of the specification and practice of the present invention disclosed herein. It is intended that the specification and examples be considered as exemplary only, with a true scope and spirit of the present invention being indicated by the following claims.