KR100672924B1 - Remote monitoring apparatus and system and method thereof - Google Patents

Abstract

A remote monitoring device, a remote monitoring system, and a remote monitoring method are provided to properly transform and supply monitoring information through at least one auxiliary communication network when a main communication network is broken and to appropriately obtain, store, and transmit the monitoring information according to the states of a power source and the auxiliary communication network. A remote monitoring device(200) includes: a monitoring information receiving unit obtaining plural monitoring information; a monitoring information storing unit(230) storing the received monitoring information; an auxiliary power unit supplying power when a main power source is weakened; communication units(250,260) transmitting the information to plural communication networks(310,320,330); and a control unit(240) switching the auxiliary power unit and the main power source according to the state of power, selectively transmitting at least a part of the information stored in the monitoring information storing unit through a bypass network or a main communication network supported by the communication unit according to the state of the present communication network, and reducing the power consumption rate by changing an operation mode of at least one of the monitoring information receiving unit, the monitoring information storing unit, and the communication unit according to the power consumption of the auxiliary power unit in using the auxiliary power unit.

Description

REMOTE MONITORING APPARATUS AND SYSTEM AND METHOD THEREOF

1 is a block diagram showing the configuration of a general remote monitoring system.

Figure 2 is a block diagram showing the configuration of a remote monitoring system of an embodiment of the present invention.

Figure 3 is a block diagram showing an example of the configuration of the wired communication unit according to an embodiment of the present invention.

Figure 4 is a block diagram showing an example of the configuration of a wireless communication unit according to an embodiment of the present invention.

5 is a flow chart showing the operation of the embodiment of the present invention.

*** Explanation of symbols for main parts of drawing ***

100: monitoring information generation and processing unit 200: remote monitoring device

210: video / audio processing unit 220: surveillance signal processing unit

230: monitoring information storage unit 240: control unit

250: wireless communication unit 260: wired communication unit

270: power management unit 300: center server

400: auxiliary power

The present invention relates to remote monitoring, and more particularly, to a remote monitoring apparatus, a remote monitoring system, and a method for allowing the remote monitoring to be effectively maintained even when the power supply or the network environment changes.

Remote monitoring systems that monitor remote locations through multiple monitoring means and take countermeasures in the event of an abnormality are found in homes, industrial sites, places where goods are sold or stored, or where expensive items are handled. Such remote sensing systems are being actively adopted in large apartments or private homes by attempting to integrate all household electronics and security-related functions into the home network.

1 is a configuration of a general remote surveillance system, which receives and outputs video / audio information and sensor information from one or more surveillance cameras, microphones, and various sensors, and receives a necessary signal and controls them. Surveillance information generation and processing unit 10 that provides a signal, and the video / audio signal provided from the surveillance information generation and processing unit 10 is converted into a digital signal and various state information of the sensors are converted into a digital signal and then Remote monitoring device 20 for transmitting the monitoring information to the public network, and the monitoring information transmitted from the remote monitoring device 20 through the public network to determine whether the abnormality of the monitoring target, and the center for appropriate processing in the event of an error Server 30. The center server 30 may be disposed adjacent to the remote monitoring device 20, but most of them serve as a control station for managing a plurality of remote monitoring devices in a remote place, and when an abnormality occurs, notify the police station or a security company and monitor the corresponding object. Notify the user of the request to watch.

Referring to the configuration of the remote monitoring device 20, the video / audio processing unit 21 for receiving the video / audio signal provided by the surveillance information generation and processing unit 10 to make the appropriate digital video / audio information, and A monitoring signal processing unit which receives sensing signals provided by the monitoring information generating and processing unit 10 to make appropriate digital information, and transmits the control information requested by the control unit 23 to the monitoring information generating and processing unit 10 when necessary; 22) and a wired communication unit 24 configured as a modem suitable for various public networks while controlling the video / audio processing unit 21 and the monitoring signal processing unit 22 while digitizing the surveillance information (video / audio information and sensing information). The control unit 23 is provided to. The wired communication unit 24 is a short distance standard communication means (for example, a serial communication unit such as RS-232, RS-485, etc.) for the user to control the remote monitoring device 20 and communication means suitable for the public network to be connected Consists of

The monitoring information generating and processing unit 10 may be omitted when actually connecting each monitoring means directly with the remote monitoring apparatus 20.

The remote monitoring system having the above configuration can effectively monitor the remote monitoring target under the assumption that there is no change in the power supply or public network communication environment, but the monitoring becomes impossible when the power is cut off or the communication status of the public network is poor. This will occur.

In some cases, a backup battery may be employed to prevent a situation where monitoring is impossible due to a power cut. However, when continuous real-time monitoring continues, the effective time of the backup battery is reduced, and thus a situation in which monitoring cannot be performed eventually occurs.

In addition, when the state of the communication network for remote communication is poor, if the communication network is completely disconnected, it is impossible to accurately determine the cause, and monitoring is impossible. You will not be able to pinpoint the situation. In some cases, devices have been developed that have a means of informing the monitor of the current situation by making a phone call when the monitoring network is disconnected. However, accurate monitoring was not possible because it was only possible to make a phone call to understand the current situation. . Or, simply store the monitoring information to provide a function that allows you to analyze the monitoring situation later, it is difficult to monitor in real time in the event of a problem in the communication line.

The object of the present invention, which is newly proposed in view of the change in power and communication environment as described above, is to respond to power change by operating an alternative power source when the power is cut off, and when a problem occurs in the main communication network, monitoring information to one or more auxiliary communication networks. And remotely monitor and remotely control the acquisition, storage, and transmission of the monitoring information according to the state of the power supply and the state of the auxiliary communication network, without impairing the real time of the monitoring. It is to provide a surveillance system and a method thereof.

Another object of the embodiment of the present invention is to prepare a bypass network through a variety of communication methods and to select the communication network to transmit the monitoring information in consideration of the status of the communication network environment and the priority of the communication network among them, to securely transmit the monitoring information in real time as possible It is to provide a remote monitoring device, a remote monitoring system and a method thereof.

Another object of the embodiment of the present invention is to adjust the level of acquisition and storage of the monitoring information according to the power state, and to adjust the level of the monitoring information to be transmitted in multiple stages to enable real-time monitoring for as long as possible even when using auxiliary power To provide a remote monitoring device, a remote monitoring system and a method thereof.

Another object of the embodiment of the present invention is to store the information internally when the entire monitoring information obtained due to deterioration of the network conditions can not be delivered, and extracts only a part of the information from the stored information based on the level and state of the transmission network The present invention provides a remote monitoring device, a remote monitoring system, and a method for securing the basis of precise monitoring information while maintaining real time.

Still another object of the present invention is to provide a remote monitoring apparatus, a remote monitoring system, and a method for preventing various hacking using the monitoring information by compressing or encrypting and transmitting the information to be transmitted.

In order to achieve the above object, a remote monitoring apparatus according to an embodiment of the present invention includes a monitoring information receiving unit for obtaining a plurality of monitoring information; A surveillance information storage unit which stores the received surveillance information; An auxiliary power supply unit for supplying power when the state of the main power supply deteriorates; A communication unit capable of transmitting to a plurality of communication networks; Switching the auxiliary power supply and the main power according to a power state, and selectively transmitting at least some of the information stored in the monitoring information storage unit through a main communication network or a bypass network supported by the communication unit according to a current communication network state; When the auxiliary power is used, a control unit may reduce power consumption by changing at least one operation method of the monitoring information receiver, the monitoring information storage unit, and the communication unit according to power consumption of the auxiliary power unit.

In addition, the remote monitoring apparatus according to another embodiment of the present invention includes a surveillance information processing unit for acquiring the status of the video / audio and sensors to provide as digital information; A power manager which selects one or more of a plurality of power sources and detects a power state; A monitoring information storage unit which stores all or part of the information of the monitoring information processing unit; A communication unit which transmits the monitoring information stored in the monitoring information storage unit to a selected network among at least one communication network and detects a state of each communication network; And a controller configured to select an information storage method of the surveillance information storage unit and a communication network to be transmitted based on a power state detected by the power manager and the communication unit and a state of a communication network, and to determine a method of selecting monitoring information to be transmitted. When the state of the power deteriorates, by adjusting the storage period and precision of the information stored in the monitoring information storage unit to reduce the storage capacity to correspond to the power state, and when the state of the communication network deteriorates, the communication unit supports The bypass network is selected, and only some of the information stored in the monitoring information storage unit are selected and transmitted to suit the state of the communication network.

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In addition, the remote monitoring method according to another embodiment of the present invention comprises the steps of monitoring the power state to select one of the main power supply and the auxiliary power supply; Acquiring and storing monitoring information including audiovisual information and sensing information after determining the amount of information by adjusting an acquisition period or a compression ratio according to the monitored power state; Checking a state of a main communication network and transmitting the stored monitoring information to a center server through the main communication network when the state is greater than or equal to a threshold; In the previous step, when the state of the main communication network is less than the threshold value, one or more bypass networks are selected, and some of the stored monitoring information is selected according to the communication environment and state of the bypass network, or the amount of information of the monitoring information is determined. And re-adjusting the acquisition period or compression rate to adjust the amount of information of the monitoring information and then transmitting the information to the center server through the selected one or more bypass networks.

Embodiments of the present invention as described above will be described in detail with reference to the accompanying drawings.

2 is a block diagram illustrating an embodiment of the present invention, which is connected to one or more surveillance cameras, microphones, and various sensors, collects and outputs video / audio information and sensor information provided therefrom, and controls signals externally. Surveillance information generation and processing unit 100 that provides a control signal for controlling them while receiving the control and in some cases, the video / audio signal and the sensor provided from the surveillance information generation and processing unit 100 And converting various state information into digital signals, storing the converted state information, and transmitting a part of the stored monitoring information to a main communication network or a bypass network according to a power source and a communication network state, and the remote monitoring apparatus 200. Receives the monitoring information sent from the main communication network and the bypass network to determine whether the monitoring target is abnormal in real time. Abnormal, learns what comprises a center server 300 to perform appropriate processing. The center server 300 may be disposed adjacent to the remote monitoring device 200, but most of them serve as a control station for managing a plurality of remote monitoring devices in a remote place, and when an abnormality occurs, notify the police station or a security company and monitor the corresponding target. Notify the user of the request to watch.

Looking at the configuration of the remote monitoring device 200, the video / audio processing unit 210 to receive the video / audio signal provided by the surveillance information generation and processing unit 100 to make the appropriate digital video / audio information, and The monitoring signal processing unit for receiving the sensing signal provided by the monitoring information generation and processing unit 100 to make appropriate digital information, and transmits the control information requested by the control unit 240 to the monitoring information generation and processing unit 100 when necessary. 220, a surveillance information storage unit 230 for storing the digitized surveillance information (video / audio information and sensing information) in a predetermined storage means, the video / audio processor 210, and a surveillance signal processor 220. And some of the monitoring information stored in the monitoring information storage unit 230 while controlling the monitoring information storage unit 230 and configured as a modem suitable for various communication networks. The controller 230 provides the wired communication unit 260 or the wireless communication unit 250 configured with communication means suitable for various wireless communication networks, and selects one of a main power source and an auxiliary power source to provide power. It consists of a power management unit 270 that provides information to determine the state to the control unit 240.

Although the auxiliary power source 400 is illustrated as being configured outside of the remote monitoring apparatus 200 in the illustrated example, the auxiliary power supply 400 may be configured inside the remote monitoring apparatus 200. The auxiliary power source 400 may be a power provided to the monitoring information generating and processing unit 100, which may be a port array for convenience of configuration of simple interfaces, in addition to the remote monitoring device 200 as illustrated. have.

That is, the auxiliary power source 400 may be connected to the surveillance information generation and processing unit 100 to be a power source provided to one or more cameras, one or more microphones, and one or more sensors that provide various surveillance information. Therefore, the auxiliary power source 400 needs to supply power for continuous operation of the monitoring means, and digitizes and stores various monitoring information provided by the monitoring means and digitizes it to a center server 300 located at a remote location. Some of the monitoring information must be provided on an ongoing basis, so a lot of power must be maintained for a long time.

Accordingly, the auxiliary power source may be a simple battery or a capacitor, but a large amount of power may be required as described above, so an uninterruptible power supply (UPS) is preferably used. The uninterruptible power supply is a device that prevents power abnormality due to voltage fluctuations, frequency fluctuations, instantaneous power failures, transient voltages, etc., and always supplies stable power when using a general power supply or a reserve power source. High quality power supply can be used for a long time. In the case of using the UPS, since the automatic power switching is possible, most of the functions of the power management unit 270 may be performed by the UPS itself. In this case, the power management unit 270 may be omitted.

The remote monitoring apparatus 200 generally sets a communication network supported by one of predetermined communication modems included in the wired communication unit 260 as a main communication network and communicates with the center server 300 through this, but high-speed wireless communication. Can also be set as the primary network. In the illustrated embodiment, a plurality of communication means supporting a plurality of communication schemes are added to the wired communication unit 260 and the wireless communication unit 250 so that another communication network can be used as a bypass network when the main communication network is in a bad state. The bypass network must be simultaneously supported by the remote monitoring apparatus 200 and the center server 300, and is one of a wireless communication network 310, an internet network 320, a LAN / WAN, and a PSTN 330 as shown. There is a need for a communication means supporting the above. For example, when the main communication network is a wired Internet network, the bypass network may be a PSTN 330 network or a wireless communication network 310.

That is, the illustrated configuration is provided with technical components that can be considered for the power supply and the communication network. In this case, the controller 240 may select the use of the bypass network based on the state of the power and the communication network and manage the monitoring information to be stored or transmitted. It is to provide monitoring information while maintaining real time for a long time.

Through the above-described structure to look at the basic operating principle of the embodiment of the present invention.

As described above, the remote monitoring apparatus 200 may be operated by the auxiliary power source 400 even in the case of a power failure, and may be operated by a wired communication unit 260 and a wireless communication unit 250 having a plurality of communication units. It is configured to provide monitoring information to the bypass network. Surveillance information to be provided to the main communication network or bypass network includes the video / audio information obtained from the surveillance information generating and processing unit 100 and the sensing information of the sensors by the video / audio processing unit 210 and the surveillance signal processing unit 220. The selected monitoring information may be selected from among the information stored in the monitoring information storage unit 230, and the selected monitoring information may be all contents stored in the monitoring information storage unit 230 when the state of the main communication network is good. have. However, if the bypass network is used when the state of the main communication network is below the threshold, some of the information stored in the monitoring information storage unit 230 may be selectively provided according to the communication capacity of the bypass network. Surveillance information selected and provided may be one or more of video / audio information, video information, audio information, still image, sensor information, and the compression rate, compression method, or selection cycle of each provided information may also depend on the state of the network. Can be varied accordingly. The video / audio processor 210 or the surveillance signal processor 220 may convert an analog signal into a digital signal and generate surveillance information as a digital signal having a desired quality and capacity using a predetermined codec. If the signal is digital (receiving a digital video signal through a digital camera, a web camera, etc., receiving an audio signal sampled with a PCM, etc.), it may be configured to only manage quality and capacity by a codec.

Additionally, in order to prepare for hacking, the monitoring information provided through each communication network is encrypted using a predetermined encryption key and provided to the center server 300 or by applying a secure socket layer (SSL) method to a communication protocol. You may. The remote monitoring apparatus 200 collects various video / audio monitoring information or sensor information provided through the surveillance information generating and processing unit 100 by the video / audio processing unit 210 and the monitoring signal processing unit 220, respectively. It stores sequentially in the monitoring information storage unit 230, by providing the corresponding storage information to the center server 300 in real time through the main communication network of the monitoring target of the remote monitoring device 200 in the center server 300 The current situation can be monitored, and when an abnormality occurs, the information on the incident can be provided to the police station, the security company, or the user who requested the surveillance. In the present embodiment, even when the center server 300 provides the above occurrence information to the subjects, the information may be encrypted to prepare for hacking.

The power failure prepared by the auxiliary power supply 400 may be automatically performed by a power switching means and a power state checking means built in the power management unit 270 or the auxiliary power supply 400 itself or controlled by the control unit 240. In this way, it is possible to cope with a power failure or an intruder power off. However, as described above, the auxiliary power supply 400 must provide power to various means for processing and storing various monitoring information, various communication means, and a control unit for controlling the remote monitoring device 200. Power supply for monitoring information generation and processing unit 100 and various monitoring means (camera, microphone, sensor, etc.) connected to the monitoring information generation and processing unit 100 to provide the monitoring information, The time will be shorter. If the power provided by the auxiliary power supply 400 is not sufficient, the monitoring performance by the remote monitoring device 200 may be greatly deteriorated.

Therefore, in the present embodiment, when using the auxiliary power source 400, the monitoring environment setting is changed according to the power state so as to use the auxiliary power source 400 as efficiently as possible while preserving the real-time and accuracy of the monitoring as much as possible.

That is, the state of the auxiliary power supply 400 may be measured directly, or assuming that the state of the auxiliary power supply 400 deteriorates with time, the monitoring state for reducing power consumption based on the measured value or the assumption value is gradually increased. The control unit 240 performs the control to switch to the setting. The method of reducing power consumption may include adjusting the interval of acquiring the monitoring information of the video / audio processing unit 210 or the monitoring signal processing unit 220 or adjusting the digitization level, and the connected monitoring means (camera, A method of providing power only to a sensor, etc. only when necessary, a method of reducing information stored in the monitoring information storage unit 230, and a method of increasing a period of selecting monitoring information to be provided to a center server through the communication network. For example, it is possible to use a lower power communication network as a bypass network. In particular, one or more of each of these schemes may be implemented in combination, and the level of application of these schemes may be determined based on staged or gradual power states or time progression.

The control unit 240 may limit the information to be transmitted in various ways for optimal maintenance of the power, but the minimum monitoring real-time or information that allows the center server 300 to check the information of the current monitoring target It should be able to guarantee the accuracy of For example, during a period when the power state is judged to be good, video and audio are generated at a high frame rate and audio sampling state, and transmitted with the sensing information acquired at a high sampling period and resolution. It reduces the frame rate of the video signal, lowers the audio sampling state, and lowers the sampling period and resolution of the sensing information. If it is determined that the power state is deteriorated below a certain level, a still image is periodically provided instead of a video signal, and audio information is also provided with or without a low compression rate, and sensing information is transmitted only when a change in information occurs. You can do that. In this case, the stored monitoring information may maintain a set storage method regardless of the provision, and may also vary according to a power state. Of course, it is also possible to change the monitoring information to be transmitted in a manner different from the above embodiment (for example, video / audio transmission → video transmission → audio transmission → still image transmission, etc.).

In addition to the method for maintaining the real-time and accuracy of the monitoring information due to the change in the power supply, the controller 240 may also respond to the method of selecting the bypass network in response to a change in the state of the communication network according to various scenarios. .

The communication network connected to the center server 300 should have at least one bypass network set up in addition to the main communication network. Representative ones include the Internet network, a local area network, a public telephone network (PSTN), and a universal serial communication method (UART, USB). A plurality of communication networks may be used among a wired network including a network, a wireless network including a mobile communication network, a local area wireless communication network, and a wireless LAN network.

3 to 4 illustrate configurations of the wired communication unit 260 and the wireless communication unit 250. The wired communication unit 260 enables relatively low power high speed communication, and the wireless communication unit 250 has a relatively high power low speed. Communication is possible. However, depending on the type of communication, this distinction can be meaningless.

3 illustrates an example of a structure of a wired communication unit 260 including a plurality of communication means. As shown in FIG. 3, an LNA card 261 that can be directly connected to a center server 300 or an internet network, and a PSTN network are illustrated. And a telephone modem 262 that can be connected to the communication device, a UART communication unit 263 that can provide information to a separate relay communication means through various short-range wired communication methods, or can be connected to an external control computer. It may be made of a USB communication unit 264 that can be provided or connected to an external control computer, and a cable modem 265 directly connected to the center server 300 or connected to the Internet through a router. Among them, a plurality of means may be selected and configured as the wired communication unit 260.

4 also illustrates a structure of a wireless communication unit 250 including a plurality of communication means. As shown in FIG. 4, a mobile communication module 251 capable of communicating with a mobile communication network and a separate relay communication means are wirelessly connected. Bluetooth communication unit 252 for providing information, IrDA communication unit 253, RF communication unit 254, and a wireless LAN communication unit (802.11x) (255) connected to a wireless access pointer, and the like. A plurality of means among these may be selected and configured as the wireless communication unit 250. The relay communication means may be a means for supporting a communication method supported by the wired communication unit 260 or another wireless communication unit 250. When the connection to the relay communication means is performed wirelessly, an external intruder may not recognize this. The advantage is that the telecommunication lines are not cut off.

However, if it is not necessary, only one of the wired communication unit 260 and the wireless communication unit 250 may be used, and the types of communication modules constituting the communication unit are not limited. Recently, a communication method such as Wibro or WiMAX may be applied.

The remote monitoring apparatus 200 configured to support the various communication methods as described above should effectively utilize the various communication methods. Accordingly, the control unit 240 encrypts the selected information among the monitoring information stored in the monitoring information storage unit 230 through the setting of the main communication network and transmits the encrypted information to the center server 300. When the deterioration network is deteriorated, the bypass network is selected and the selected information suitable for the bypass network is encrypted and transmitted to the center server 300 through the bypass network. The bypass network may be fixed according to a predetermined priority, but the priority may be adjusted according to various environments. For example, when the power is cut off and the auxiliary power source 400 is operating, a bypass network having a small amount of power required for transmission may have a higher priority. When operating by the main power source, the bypass network may have higher communication performance than transmission power. The network may be of high priority. Alternatively, bypass networks that have low communication reliability or low communication costs may be of high priority regardless of power source.

In general, it is preferable that the main communication network is selected from a LAN network or a wired / wireless Internet network capable of high-speed communication, and the bypass network is not selected from the above networks, but a PSTN network having the largest communication infrastructure or a wireless communication network may be selected. .

The priority is set by various methods as described above, and when the state of the main communication network deteriorates according to the priority, the bypass network having the highest priority is selected and used, and when the communication state of the bypass network deteriorates, subsequent priority The bypass network can be modified to take into account the bypass network, the bypass network of previous priorities, or the state of the primary telecommunication network. Alternatively, if the state of another bypass network or main communication network improves while the bypass network is used, a method of detecting the return to the bypass network or the main communication network having a higher priority may be applied.

Since the bypass network may have a smaller amount of information to be transmitted than the main communication network, when the bypass network is selected, only the partial information of the surveillance information stored in the surveillance information storage unit 230 is extracted, and only these are compressed and encrypted. It is preferable to transmit to the center server 300, the type of the extraction information and the extraction cycle or the degree of compression to extract and compress is selected based on the communication performance of the bypass network, and the state of the power also becomes a selection factor Can be. In this case, when the communication performance of the bypass network is variable, even if the communication performance of the bypass network is greater than or equal to the threshold value, the extraction setting of the monitoring information to be transmitted may be changed in response to a change in the communication performance. That is, in view of communication performance, the control unit 240 controls to extract and transmit only the monitoring information that can be transmitted in real time, so that the center server 300 can monitor in real time even though the amount of monitoring information is reduced. The selection or extraction method of the surveillance information may be appropriately selected from among video / audio information, video information, audio information, still image, and sensor information, similarly to the selection or extraction method according to the power state. Frame rate, sampling degree, compression degree, selection period, etc. may be additionally adjusted.

In another embodiment of the bypass network selection, a plurality of bypass networks may be simultaneously selected to divide and transmit monitoring information to be transmitted through the bypass networks. For example, it is also possible to provide video information to the first bypass network and to provide audio information and sensor information to the second bypass network.

The change of the communication network and the change of the power state may be included in the transmission of the monitoring information through the main communication network or the bypass network and provided to the center server 300, through which the center server 300 is currently remote monitoring apparatus 200. It is possible to know the operating environment of, and to follow up accordingly. However, even when such a response is delayed or neglected to determine a more accurate situation, the center server is effectively used according to the above embodiment, and the security information is encrypted and provided without sacrificing real-time by effectively selecting a communication network. The 300 can restrain unnecessary dispatch or response and secure time to make an appropriate judgment.

5 is a flowchart illustrating an example of an operation method of a remote monitoring apparatus when a state change of a power source and a state change of a communication network occur by combining some of the various operation methods described above.

As shown in the figure, the remote monitoring apparatus receives monitoring information from various monitoring means, acquires them, and determines the power state to determine whether there is a power failure. The identification of the power state may be performed at a certain point of time, but may be determined regardless of an operation step in an interrupt manner. Accordingly, the process of switching to the auxiliary power source may be performed in the interrupt processing routine.

In the present embodiment, it is a case of determining whether to switch to the auxiliary power source in the case of power failure by periodically checking whether there is a power failure. If it is not a power failure, no action is taken (restored by a reset by the administrator) .However, if it covers the recovery from a power failure, it returns to the main power supply if the previous state is an operation by the auxiliary power supply. The process can be added.

As shown in the figure, when it is determined that the power failure is switched to the auxiliary power supply, the power level of the corresponding auxiliary power supply is checked to determine the state of the power supply. If the configuration can not determine the state of the power supply may also be applied to predict the power state based on the progress of time.

As a result of the power state determination, the monitoring setting is changed when the power state is less than the reference value. The reference value may be a plural or variable reference value for identifying a case where the power state deteriorates as compared with the previous step by step or gradually, and the change of the monitoring setting may be performed in order to maintain the real time monitoring state in consideration of the power state. Adjust transmission related settings including selection period and capacity of monitoring information to be sent to server, storage related settings including compression rate, frame rate, sampling frequency, etc. It may mean a change of one or more of the functions for adjusting the setting related to the acquisition of the monitoring information.

Thereafter, the monitoring information obtained from the monitoring means such as a camera, a microphone, a sensor, or the like is stored in a predetermined storage area.

In order to transmit the stored monitoring information to the center server, the state of the communication network is checked, and if the state of the main communication network is good, all the stored monitoring information is compressed and encrypted and transmitted to the center server through the main communication network. In this case, the transmitted monitoring information may be selectively extracted some information, not all of the stored monitoring information according to a change in bandwidth or transmission state, even if a main communication network is used. In this case, the monitoring information to be transmitted may also include information indicating the state of the power supply and the state of the communication network.

If the status of the main network is less than the reference value as a result of the communication network status check, select one or more bypass networks among one or more auxiliary communication networks, and extract and compress a portion of the stored monitoring information to be suitable for the bandwidth and communication state of the selected bypass network. And encrypts the data and sends it to the bypass network. In this case, the monitoring information to be transmitted may also include information indicating the state of the power supply and the communication network.

As described above, the remote monitoring apparatus, the remote monitoring system, and the method according to the embodiment of the present invention respond to a power change by operating an alternative power source when the power is cut off, and when a problem occurs in the main communication network, one or more auxiliary devices By appropriately modifying and providing the monitoring information to the communication network, it is possible to appropriately control the acquisition, storage and transmission of the monitoring information according to the state of the power supply and the state of the auxiliary communication network within a range without impairing the real-time of monitoring. It has the effect of maximizing the reliability of monitoring in response to changes in the monitoring environment while maintaining the monitoring's real time.

In the remote monitoring apparatus, the remote monitoring system and the method according to an embodiment of the present invention, after preparing a bypass network through various communication methods, the remote monitoring device, the remote monitoring system, and the method thereof are selected among them, in consideration of the state of the network environment and the priority of the communication networks. By transmitting the monitoring information safely in real time as possible, it is possible to cope with the variable situation of the network or the intruder's network disconnection.

According to an embodiment of the present invention, a remote monitoring apparatus, a remote monitoring system, and a method thereof may use auxiliary power by adjusting the level of acquiring and storing monitoring information according to a power state, and adjusting the level of monitoring information to be transmitted in multiple stages. In this case, it is possible to monitor in real time as long as possible to maintain the monitoring even when the power is cut off, and there is an effect that allows the monitoring center to respond to the power cut off.

In the remote monitoring apparatus, the remote monitoring system and the method according to the embodiment of the present invention, if the entire monitoring information obtained due to the deterioration of the network condition cannot be delivered, the corresponding information is stored internally, and some of the information is stored in the stored communication network. By extracting and transmitting only a portion based on the level and state, it is possible to respond to detailed surveillance information analysis by maintaining the basis of precise surveillance information while maintaining real time.

The remote monitoring apparatus, the remote monitoring system, and the method according to the embodiment of the present invention may compress or encrypt and transmit information to be transmitted, thereby preventing various hacking using the monitoring information, thereby improving the reliability of the monitoring and blocking the improper acquisition of the monitoring information. It has an effect.

Claims (33)

A surveillance information receiver for obtaining a plurality of surveillance information; A surveillance information storage unit which stores the received surveillance information; An auxiliary power supply unit for supplying power when the state of the main power supply deteriorates; A communication unit capable of transmitting to a plurality of communication networks; Switching the auxiliary power supply and the main power according to a power state, and selectively transmitting at least some of the information stored in the monitoring information storage unit through a main communication network or a bypass network supported by the communication unit according to a current communication network state; And a controller configured to reduce power consumption by changing at least one operation mode of the monitoring information receiver, the monitoring information storage unit, and the communication unit according to the power consumption of the auxiliary power unit when the auxiliary power is used. . The remote monitoring apparatus according to claim 1, wherein the plurality of surveillance information obtained by the surveillance information receiver includes one or more video signals, one or more audio signals, and one or more sensor information. The apparatus of claim 1, wherein the surveillance information receiver comprises: a video / audio processor configured to obtain and digitize video / audio information included in the surveillance information; And a surveillance signal processor configured to acquire and digitize sensor information included in the surveillance information. The apparatus of claim 1, wherein the communication unit comprises at least one of communication means for connection with a wired network including an Internet network, a local area network, a public switched telephone network (PSTN), and a universal serial communication scheme (UART, USB). Remote monitoring device, characterized in that. The remote monitoring apparatus according to claim 1, wherein the communication unit selectively includes one or more communication means for connection with a wireless network including a mobile communication network, a local area wireless communication network, and a wireless LAN network. The method of claim 1, wherein the control unit reduces the capacity of the surveillance information stored in the surveillance information storage unit by adjusting the reception period of the surveillance information receiver based on the power state of the auxiliary power unit when the auxiliary power unit is used. Remote monitoring device. The remote monitoring apparatus according to claim 1, wherein the control unit controls the power supply to external means using the auxiliary power unit based on the power state of the auxiliary power unit when the auxiliary power unit is used. The method of claim 1, wherein the control unit selects a bypass network by adjusting the communication unit when a state of the current communication network is less than or equal to a threshold, and only some of the information stored in the monitoring information storage unit according to the communication network state of the bypass network. Remote monitoring device characterized in that the extraction and transmitting in a cycle and capacity capable of real-time transmission. 10. The network of claim 8, wherein at least two bypass networks exist, and the controller monitors the states of the communication networks and performs subsequent switching to another bypass network based on a communication state threshold set for each bypass network. And returning to the main communication network. The remote monitoring apparatus of claim 8, wherein the extracted partial information comprises at least one of video / audio information, video information, audio information, still image information, and sensor information. A surveillance information processor for acquiring the status of video / audio and sensors and providing the digital information; A power manager which selects one or more of a plurality of power sources and detects a power state; A monitoring information storage unit which stores all or part of the information of the monitoring information processing unit; A communication unit which transmits the monitoring information stored in the monitoring information storage unit to a selected network among at least one communication network and detects a state of each communication network; And a controller configured to select an information storage method of the surveillance information storage unit and a communication network to be transmitted based on a power state detected by the power management unit and the communication unit, and a communication network, and determine a selection method of transmission information to be transmitted. When the state of the power deteriorates, the controller adjusts the storage period and precision of the information stored in the surveillance information storage unit to reduce the storage capacity to correspond to the power state, and when the state of the communication network deteriorates, Selecting a bypass network supported by the communication unit, and remote monitoring device, characterized in that for selecting only part of the information stored in the information stored in the monitoring information storage unit to suit the state of the communication network. delete delete 12. The remote monitoring apparatus according to claim 11, wherein at least one bypass network is selected at a time, and the provided monitoring information is divided and transmitted to the communication networks. delete delete delete delete delete delete delete delete delete Monitoring a power state and selecting one of a main power source and a sub power source; Acquiring and storing monitoring information including audiovisual information and sensing information after determining the amount of information by adjusting an acquisition period or a compression ratio according to the monitored power state; Checking a state of a main communication network and transmitting the stored monitoring information to a center server through the main communication network when the state is greater than or equal to a threshold; In the previous step, when the state of the main communication network is less than the threshold value, one or more bypass networks are selected, and some of the stored monitoring information is selected according to the communication environment and state of the bypass network, or the amount of information of the monitoring information is determined. And re-adjusting the acquisition period or compression rate to adjust the amount of information of the monitoring information, and then transmitting the information to the center server through the selected one or more bypass networks. The remote monitoring method according to claim 24, wherein the monitoring information transmitted to the center server further includes information indicating the state of the communication network or information indicating the state of the power supply. 25. The remote monitoring method according to claim 24, wherein said transmitting said monitoring information to a center server each comprises encrypting said monitoring information. delete delete 25. The method of claim 24, wherein the main communication network is an Internet network, and wherein transmitting the monitoring information to the center server through the main communication network comprises encrypting the monitoring information in a secure socket layer (SSL) manner. Remote monitoring method. The network of claim 24, wherein the bypass network is selected from at least two or more types of communication networks among a plurality of wired networks and a plurality of wireless communication networks except the main communication network, and among the stored monitoring information according to the selected communication network. And remotely selecting information to transmit. 31. The method of claim 30, wherein the step of differently selecting the information to be transmitted further comprises the step of determining a period of selecting information to be transmitted from among the stored monitoring information based on the communication capacity of the bypass network or increasing a compression ratio of the selected information. Remote monitoring method comprising a. The method of claim 24, wherein the transmitting of the selected partial information of the stored monitoring information to the center server through the bypass network comprises selecting a bypass network to be used based on a communication state and a preset priority among a plurality of bypass networks. Wow; Extracting and transmitting the surveillance information to a level suitable for the state of the communication network among the stored surveillance information through the bypass network; And checking the communication state of the main communication network and the other bypass network and determining whether to change the communication network based on the result. 33. The method of claim 32, wherein selecting the bypass network to be used based on the communication state and the preset priority level further increases the priority of the bypass network having low power for transmission in consideration of the current power state. Remote monitoring method.

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