Patent Publication Number: US-2019191210-A1

Title: Systems and methods for transmitting a high quality video image from a low power sensor

Description:
FIELD 
     The present invention relates generally to security and surveillance systems. More particularly, the present invention relates to systems and methods for transmitting a high quality video image from a low power sensor. 
     BACKGROUND 
     In known security systems, one or more surveillance cameras capture video of a secure area. The surveillance cameras transmit the captured video as a video data stream to a mobile device, such as a user&#39;s cell phone. Generally, the captured video transmitted to the mobile device is compressed, thereby lowering video quality, due to network bandwidth restrictions. However, the low quality video transmitted to the mobile device may be insufficient for proper viewing of the video data stream 
     In view of the above, there is a continuing, ongoing need for improved systems and methods for transmitting a high quality video image to a mobile device. 
    
    
     
       BRIEF DESCRIPTION OF THE DRAWINGS 
         FIG. 1  is a block diagram of a system in accordance with disclosed embodiments; 
         FIG. 2  is a block diagram of a wireless sensor in accordance with disclosed embodiments; and 
         FIG. 3  is a flow diagram of a method in accordance with disclosed embodiments. 
     
    
    
     DETAILED DESCRIPTION 
     While this invention is susceptible of an embodiment in many different forms, there are shown in the drawings and will be described herein in detail specific embodiments thereof with the understanding that the present disclosure is to be considered as an exemplification of the principles of the invention. It is not intended to limit the invention to the specific illustrated embodiments. 
     Embodiments disclosed herein can include systems and methods for transmitting one or more high quality images in response to a command received from a mobile device over a network. For example, the systems and methods disclosed herein can transmit low quality images in a video data stream when transmitting a motion picture over the network and transmit a high quality image in response to receiving a pause video command from the mobile device. In some embodiments, video quality may correspond with a video resolution or a video compression level. For example, if video is highly compressed, then high-frequency details and the video quality may decrease. In some embodiments, the low quality images in the video data stream can include a lower pixel resolution (720×480 pixels) than the high quality image (e.g. 1200×800 pixels) 
     Embodiments disclosed herein can include surveillance cameras, passive infrared (PIR) cameras, or any type of camera capable of capturing the video images. For example, a PIR camera can record the video images in response to a PIR sensor detecting motion. The PIR camera and the PIR sensor can use less energy than a surveillance camera that constantly captures the video images. 
     In some embodiments, systems and methods disclosed herein can include a PIR or low energy, wireless camera that can transmit video images to a control panel within a secure area. One or both of the wireless camera and the control panel can store high quality images captured by the camera in a first file or a first set of files. One or both of the wireless camera and the control panel can compress the high quality images captured by the camera and store the compressed images (e.g. the low quality images) as a second file or a second set of files. Furthermore, one or both of the control panel and the camera can communicate with the mobile device, such as a user&#39;s smartphone, over the Internet and transmit some or all of the high quality images or the low quality images of the video data stream over the Internet. 
     In some embodiments, one or both of the control panel and the wireless camera can transmit the low quality images of the video data stream (Le. the second file or the second set of files) in response to a first command from the mobile device requesting the video images. In some embodiments, one or both of the control panel and the wireless camera can transmit the high quality image of a particular video frame (i.e. the first file or one of the first set of files) when one or both of the control panel and the wireless camera receives a second command from the mobile device, for example, to pause the video data stream. In some embodiments, one or both of the control panel and the wireless camera can also store a third video file or a third set of files that include images with an intermediate video quality level in response to a third command from the mobile device, for example, to play the video data stream in slow motion. In some embodiments, the images with the intermediate video quality level may be compressed, but less than the low quality images in the video data stream (e.g. the second file or second set of files). For example, in some embodiments, the intermediate video quality level can include a lower compression ratio than the low quality images. Examples of compression techniques include MPEG, Motion JPEG, H.261/263, etc. 
     It is to be understood that systems and methods disclosed herein can be executed and controlled by a surveillance system and that the surveillance system can include a plurality of cameras, a control panel device, a network, and a server device. It is to be further understood that some or all of the surveillance system, the plurality of cameras, the control panel device, the network, and the server device can include a user interface device, a memory device, and a transceiver device each of which can be in communication with control circuitry, one or more programmable processors, and executable control software as would be understood by one of ordinary skill in the art. The executable control software can be stored on a transitory or non-transitory computer readable medium, including but not limited to local computer memory, RAM, optical storage media, magnetic storage media, flash memory, and the like. 
       FIG. 1  is a block diagram of a system  100  in accordance with disclosed embodiments. As seen in  FIG. 1 , the system  100  can include a camera  110  monitoring a region R. The camera  110  can capture video images of the region R. In some embodiments, the camera  110  can include a PIR camera that captures the video images in response to a PIR sensor associated with the camera  110  detecting a change in an ambient environment, for example, temperature. In some embodiments, the camera  110  may be wired or wirelessly connected to a control panel  120 . The camera  110  can transmit the video images captured by the camera  110 , either directly or via the control panel  120 , to a mobile device  150  over a network  130  through a server  140 . 
     As illustrated in  FIG. 1 , the mobile device  150  can transmit control signals through the server  140  and the network  130  to instruct one or both of the camera  110  and the control panel  120  to send a high quality image, a low quality video data stream, or an intermediate quality slow motion video data stream to the mobile device  150 . For example, responsive to receiving a play video command from the mobile device  150 , one or both of the camera  110  and the control panel  120  can transmit the low quality video data stream. Furthermore, responsive to receiving a pause video command from the mobile device  150 , one or both of the camera  110  and the control panel  120  can transmit the high quality image, which, in some embodiments, can include a high quality image frame. In some embodiments, one or both of the camera  110  and the control panel  120  can transmit the high quality image based on a frame number or a video timestamp at which the compressed, low quality video data stream paused responsive to the pause video command. Further still, responsive to receiving a play slow motion video command from the mobile device  150 , one or both of the camera  110  and the control panel  120  can transmit the intermediate quality slow motion video data stream. In some embodiments, one or both of the camera  110  and the control panel  120  can store low quality images of the low quality video data stream, intermediate images of the intermediate quality slow motion video data stream, and the high quality image as separate files or separate sets of files on a computer readable medium. 
     In some embodiments, the camera  110  can send high quality images to the control panel  120 , and the control panel can store the high quality images. In these embodiments, the control panel  120  can generate the low quality video data stream by compressing the high quality images received from the camera  110 . Furthermore, in these embodiments, the control panel  120  can generate the intermediate quality video data stream by compressing the high quality images received from the camera  110  at a lower compression rate than the compression rate used to generate the low quality video data stream. 
       FIG. 2  is a block diagram of a video sensor  200 , such as the camera  110 , in accordance with disclosed embodiments. As seen in  FIG. 2 , the video sensor  200  can store both a high compression rate (low quality) video file  202  (related to the low quality images in the video data stream) and a plurality of high quality picture files  204  (related to the high quality images). In some embodiments, the video sensor  200  can also store an intermediate compression rate (intermediate quality) video file. In some embodiments, control circuitry  206  can store the files  202 ,  204  on a non-transitory computer readable medium, and in some embodiments, the control circuitry  206  can determine whether to transmit the high compression rate (low quality) video file  202  or one of the plurality of high quality picture files  204  over a wireless link  208 . For example, in some embodiments, the control circuitry can transmit the high compression rate (low quality) video file  202 , the one of the plurality of high quality picture files  204 , or another video file over the wireless link  208  based on control signals received over the wireless link  208 . In some embodiments, the control circuitry  206  can compress the high quality images captured by the video sensor  200  in response to receiving a play command over the wireless link  208 . 
       FIG. 3  is a flow diagram of a method  300  in accordance with disclosed embodiments. As seen in  FIG. 3 , the method  300  can include the camera  110 ,  200  capturing the high quality images as in  302 , one or both of the camera  110 ,  200  and the control panel  120  storing the high quality images in memory as in  304 , and one or both of the camera  110 ,  200  and the control panel  120  compressing the high quality images as in  306  to generate the low quality video data stream and the intermediate quality slow motion video data stream. For example, one or both of the camera  110 ,  200  and the control panel  120  can compress the high quality images at both a high compression rate and an intermediate compression rate. As further seen in  FIG. 3 , the method  300  can include one or both of the camera  110 ,  200  and the control panel  120  receiving a command from the mobile device  150  over a network as in  308 , and the camera  110 ,  200  or the control panel  120  determining whether the command indicates a request to play video, pause video, or play slow motion video as in  310 . 
     When the command includes the request to play video, the method  300  can include one or both of the camera  110 ,  200  and the control panel  120  transmitting the low quality video data stream to the mobile device  150  over the network as in  312 . When the command includes the request to play slow motion video, the method  300  can include one or both of the camera  110 ,  200  and the control panel  120  transmitting the intermediate quality slow motion video data stream to the mobile device  150  over the network as in  314 . When the command includes the request to pause video, the method  300  can include one or both of the camera  110 ,  200  and the control panel  120  transmitting one of the high quality images to the mobile device  150  over the network as in  316 . In some embodiments, the one of the high quality images transmitted can correspond to a time stamp or a frame number at which the low quality video data stream or the intermediate quality slow motion video data stream paused responsive to the request to pause video. 
     The embodiments described herein are an improvement over conventional camera systems because the systems and methods disclosed herein can transmit a single high quality image to a mobile device for review by a user responsive to the user pausing a low quality video data stream to investigate an object, such as an intruder, depicted in the low quality video data stream. Advantageously, because the human eye does not notice or is not sensitive to low quality details in moving images, systems and methods disclosed herein can transmit the low quality video data stream to the user for viewing the low quality video data stream and, on command, can transmit the high quality image to the user for viewing details of the low quality video data stream without significantly increasing network bandwidth. 
     Although a few embodiments have been described in detail above, other modifications are possible. For example, the logic flows described above do not require the particular order described or sequential order to achieve desirable results. Other steps may be provided, steps may be eliminated from the described flows, and other components may be added to or removed from the described systems. Other embodiments may be within the scope of the invention. 
     From the foregoing, it will be observed that numerous variations and modifications may be effected without departing from the spirit and scope of the invention. It is to be understood that no limitation with respect to the specific system or method described herein is intended or should be inferred. It is, of course, intended to cover all such modifications as fall within the spirit and scope of the invention.