MONITORING CAMERA DEVICE, MONITORING SYSTEM USING THE SAME, AND MONITORING IMAGE TRANSMISSION METHOD
First Claim
1. A monitor camera device of a monitoring system for monitoring a remote place by transporting image data for monitoring taken by a monitor camera device to a monitor terminal device through a network of communication network, comprising:
- an imaging unit for taking the image of a subject as the object of monitoring, and generating the image data of the taken subject in a specific frame period, a moving image extracting unit for extracting image data of each frame in every specific frame period from the image data of specific frame period generated in the imaging unit,a motion image encoder for generating motion image data as compressed and coded image data by compressing and coding the image data extracted in the moving image extracting unit, according to still image compressing and coding system, or moving image compressing and coding system,a change detecting unit for detecting a change in the subject on the basis of the image data, and issuing the detected result as a change detection signal, anda transport processing unit for processing data transport by changing over the processing means of transport protocol selectively depending on the change detection signal, for transporting the data to a monitor terminal device through a network, between processing means based on connection type communication protocol requiring establishment of connection between mutual communications and processing means based on connection-less type communication protocol not requiring establishment of connection between mutual communications,wherein the transport processing unit transports the motion image data generated in the motion image encoder, when the change detection data shows no change, to the monitor terminal device through the network according to connection-less type communication protocol, and transports the motion image data generated in the motion image encoder, when the change detection data shows presence of change, to the monitor terminal device through the network according to connection type communication protocol.
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Accused Products
Abstract
The invention includes an imaging unit for taking the image of a subject as the object of monitoring, a moving image extracting unit for extracting image data of each frame in every specific frame period from this image data, a motion image encoder for generating motion image data by compressing and coding the extracted image data, a change detecting unit for issuing a change detection signal showing a change in the subject, and a transport processing unit for processing data transport by changing over at least two types of communication protocols depending on the change detection signal. The transport processing unit transports the motion image data to a monitor terminal device through a network according to connection-less type communication protocol when the change detection signal shows no change, or according to connection type communication protocol when showing presence of change.
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Citations
19 Claims
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1. A monitor camera device of a monitoring system for monitoring a remote place by transporting image data for monitoring taken by a monitor camera device to a monitor terminal device through a network of communication network, comprising:
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an imaging unit for taking the image of a subject as the object of monitoring, and generating the image data of the taken subject in a specific frame period, a moving image extracting unit for extracting image data of each frame in every specific frame period from the image data of specific frame period generated in the imaging unit, a motion image encoder for generating motion image data as compressed and coded image data by compressing and coding the image data extracted in the moving image extracting unit, according to still image compressing and coding system, or moving image compressing and coding system, a change detecting unit for detecting a change in the subject on the basis of the image data, and issuing the detected result as a change detection signal, and a transport processing unit for processing data transport by changing over the processing means of transport protocol selectively depending on the change detection signal, for transporting the data to a monitor terminal device through a network, between processing means based on connection type communication protocol requiring establishment of connection between mutual communications and processing means based on connection-less type communication protocol not requiring establishment of connection between mutual communications, wherein the transport processing unit transports the motion image data generated in the motion image encoder, when the change detection data shows no change, to the monitor terminal device through the network according to connection-less type communication protocol, and transports the motion image data generated in the motion image encoder, when the change detection data shows presence of change, to the monitor terminal device through the network according to connection type communication protocol. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17)
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18. A monitoring system comprising a monitor camera device for generating image data for monitoring, a network as communication network for transporting the image for monitoring, and a monitor terminal device for receiving and reproducing the image data for monitoring transported through the network,
wherein the monitor camera device comprises: -
an imaging unit for taking the image of a subject as the object of monitoring, and generating the image data of the taken subject in a specific frame period, a moving image extracting unit for extracting image data of each frame in every specific frame period from the image data of specific frame period generated in the imaging unit, a motion image encoder for generating motion image data as compressed and coded mage data by compressing and coding the image data extracted in the moving image extracting unit, according to still image compressing and coding system, or moving image compressing and coding system, a change detecting unit for detecting a change in the subject on the basis of the image data, and issuing the detected result as a change detection signal, and a transport processing unit for processing data transport by changing over the processing means of transport protocol selectively depending on the change detection signal, for transporting the data to a monitor terminal device through a network, between processing means based on connection type communication protocol requiring establishment of connection between mutual communications and processing means based on connection-less type communication protocol not requiring establishment of connection between mutual communications, wherein the transport processing unit transports the motion image data generated in the motion image encoder, when the change detection data shows no change, to the monitor terminal device through the network according to connection-less type communication protocol, and transports the motion image data generated in the motion image encoder, when the change detection data shows presence of change, to the monitor terminal device through the network according to connection type communication protocol.
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19. A monitoring image transport method of a monitoring system for monitoring a remote place by transporting image data for monitoring taken by a monitor camera device to a monitor terminal device through a network of communication network, comprising:
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a step of taking the image of a subject as the object of monitoring, and extracting image data of each frame in every specific frame period from the image data of specific frame period of an imaging unit for generating image data of the taken subject image in specific frame period, a step of generating motion image data as compressed and coded image data by compressing and coding the image data extracted in the moving image extracting unit, according to still image compressing and coding system, or moving image compressing and coding system, a step of detecting a change in the subject on the basis of the image data, and issuing the detected result as a change detection signal, and a step of processing data transport by changing over the transport protocol selectively depending on the change detection signal, for transporting the data to a monitor terminal device through a network, between process based on connection type communication protocol requiring establishment of connection between mutual communications and process based on connection-less type communication protocol not requiring establishment of connection between mutual communications, wherein the data transport processing step transports the motion image data generated in the motion image encoder, when the change detection data shows no change, to the monitor terminal device through the network according to connection-less type communication protocol, and transports the motion image data generated in the motion image encoder, when the change detection data shows presence of change, to the monitor terminal device through the network according to connection type communication protocol.
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Specification