TW201235827A - Power management method and associated apparatus of monitoring system - Google Patents

Abstract

Power management method and associated apparatus of monitor system, adjusting power source loading and/or issuing alarms according to a bit rate by which media stream of image capturing is processed, and/or electricity supplied by power source.

Description

201235827

TW7556PAMY VI. Description of the Invention: [Technical Field] The present invention relates to a power management method and related apparatus applied to a monitoring system, and more particularly to a bit that can process an image stream according to a monitoring system A power management method and related device for power management of a meta rate. [Prior Art] The monitoring system integrates, manages, and records the images captured by multiple surveillance cameras, and is the backbone of the modern security system. The monitoring system operates by drawing power from the power source. However, the voltage supplied by the power supply often changes due to load changes, which in turn affects the operation of the monitoring system. For example, in a convenience store, if a high-power consumption device such as a refrigerating and freezing device (such as a refrigerator or a freezer) is simultaneously activated, the voltage jitter is unstable, and the monitoring system of the convenience store is abnormally operated. SUMMARY OF THE INVENTION Therefore, the present invention is directed to a power management mechanism and technology applied to a monitoring system, which can reduce system power consumption when necessary to achieve energy saving and power saving, and can also avoid abnormal system operation. One of the objects of the present invention is to provide a power management method applied to a monitoring system. The monitoring system processes the image stream captured by the image at a bit rate, and the power management method includes: obtaining the bit rate, and comparing whether the bit rate exceeds a predetermined bit rate standard range, for example, whether the bit rate is More than one meta-rate standard value. If the bit rate exceeds the bit rate 201235827

'I VV / JjomivIY Power exception handling, for example, to reduce power, load or 疋 to alert the user. When reducing the power load, you can take the image parameters 'such as the number of frames per unit time 4, image compression ratio and / or resolution, etc.; and / : turn off the internal circuitry of the monitoring system (such as hard disk) and / or The external circuit is to a power-consuming refrigerating device). Another object of the present invention is to provide another method for power management, including: obtaining bit rate, comparing bit rate = no exceeding bit rate rate standard gf; making t source provided power (may, pressure) And ^ or current) to obtain a detected value, and compare whether the detected value exceeds a preset power standard range (for example, whether the value of (4) is greater than a standard value of _ and/or less than the standard value). If the bit rate exceeds the bit rate standard range and/or the detected value is outside the power standard range, power exception processing is performed. The power standard range may be based on the actual situation of the monitoring system, and the force statistics may be 'for example', the power (such as current) provided by the power source may be recorded according to two preset intervals during a preset short period, and according to the record. The average value of the electric power during the preset period is calculated, and the power standard range is set accordingly. It is yet another object of the present invention to provide a monitoring system including a media processing module and a main control unit. The 4-body processing module processes the media stream at a bit rate; the main control can compare whether the bit rate exceeds the default bit rate standard_. If the bit rate exceeds the NZD rate standard, the main controller will perform a power exception exception, such as reducing the power load and/or alerting the output circuitry of the monitoring system. The monitoring system can also be equipped with a power detector to detect the power (such as current and / or voltage) provided by the power supply to provide 3 201235827

1 W O:) 0hV\MY Corresponding detection value. If the detected value is outside the power standard range, the main controller performs the power supply exception processing. In order to better understand the above and other aspects of the present invention, the preferred embodiment will be described below in detail with reference to the accompanying drawings. [Embodiment] Referring to Figure 1, there is shown a monitoring system 10 in accordance with an embodiment of the present invention. The monitoring system 10 captures the power required for operation by the power source 34, and can directly couple one or more cameras 22a for monitoring, and/or interface with one or more Internet Protocol (IP) cameras via the network. 22b. The internal circuit disposed in the monitoring system 10 includes: a main controller 12, an output circuit 26, a hard disk 28, and a display controller 30. With each camera 22a, a video decoder 14 and a monitor can be disposed in the monitoring system 10. A video processor 16 is provided. In conjunction with each camera 22b, a network controller 20 and a digital signal processor 18 can be disposed in the monitoring system 10. To achieve the objectives of the present invention, a power detector 24 is further provided in the monitoring system 10. In the monitoring system 10, the main controller 12 hosts the overall operation of the monitoring system 10. The video decoder 14 is coupled to the video processor 16; the video signals obtained by capturing the video from each camera 2 2 a are received and decoded by the video decoder 14 and transmitted to the video processor 16. The digital signal processor 18 is coupled to the network controller 20, the video processor 16, the display controller 30, and the main controller 12. The video signals obtained by the cameras 22b are transmitted to the network controller 20 via the network. It is then transmitted to the digital signal processor 18. Under the control of the digital signal processor 18, the video processor 16 processes the video signal together with the digital signal 4 201235827, i w / jjur/Λΐ ΙΥ processor 18 and/or the main controller 12 to form a media stream of the video material. Therefore, the video processor 16, the digital signal processor 18, and/or the main controller 12 can be regarded as a media processing module that processes (eg, compresses) the media stream at a one-bit rate. The video data can be transmitted to the display controller 30. 'Playing on a display 32; video data can also be transferred to the hard disk 28 for storage. The bit rate at which the monitoring system 10 processes the media stream affects the power drawn by the monitoring system 10. For example, in a surveillance system using a 4-channel network protocol camera, when the bit rate is changed from 500 kB/s to 1.5 MB/s, the power consumption of the monitoring system increases by about 10%. When the bit rate is increased, the monitoring system uses more system resources to process the video data, and the system power consumption of the monitoring system increases accordingly. Therefore, the present invention considers the bit rate as the monitoring system. An indicator of power consumption and power management based on the bit rate. In order to avoid the system power consumption is too high and affect the stability of the power supply 'main controller 12 can compare the bit rate exceeds the default bit rate standard range; if the bit rate exceeds the bit rate, the standard (four) 'main (four) H丨2 Execution - External shutdown, with low power load and / or alarm to the user. In an embodiment, the bit rate standard range may be determined by a bit rate bar, for example, 'This bit rate standard value may be 1. Although the bit rate of 70 is greater than the bit rate range of this bit rate, it is difficult to (4) 10 rate standard π vanadium 仃 power supply exception treatment. The electric clerk can be used to reduce the negative or negative of the power supply. The various feasible measures can be exemplified as follows. For example, the supervisors ":, f0 can reduce the recording of the age-old image. Between ^ first 10 201235827,.

TW7556PAMY quality (such as shrinking quality), image 麈, reduction ratio and / or resolution and so on. The monitoring system 10 can also turn off some of the internal circuitry, such as the hard disk 28, etc. and/or the monitoring system 1G can also cause some (four) circuits to enter a low-energy state, such as a sleep state. If the monitoring system 10 can control various external circuits (such as high-powered cold-cooled refrigeration equipment, not shown) that are also drawn by the power source 34, the monitoring system 1 can also turn off some of the external circuits, and/or The external circuit enters a state of low energy consumption. The monitoring system can also be reported by the output circuit 26 when the power exception processing is performed. For example, the output circuit 26 can output to a light or speaker, etc., and emit an alert that is detectable by the user. In addition, the display controller 3 can also be regarded as the output circuit of the monitoring system 10, and the monitoring system 1 can also display an alarm on the display 32 via the display controller 30. Moreover, according to the power drawn by the monitoring system 1 to the power source 34, the power consumption condition of the monitoring system 10 is also known; the power detector 24 of the monitoring system 1G is used to detect the power provided by the power source 34, and the power can be Refers to voltage and / or current. The power detector 24 can be a power detection chip coupled to the power source 34 and the main controller 12, so that the main controller 12 can perform power management according to the detection value obtained by the power detector 24 detecting the power. For example, the main control 12 can compare whether the detected value (such as the voltage detection value and/or the current detection value) exceeds the corresponding power standard range (such as the voltage standard range and/or the current standard range); if the detection value exceeds The power standard range represents a deterioration in the stability of the power supply to the power source 34, and the main controller 12 can perform the aforementioned power supply exception processing to reduce the load of the power source 34 and/or issue an alarm. That is to say, the monitoring system 1 can integrate the bit rate and the power detection value to determine whether to perform power supply exception processing. Please refer to Figure 2, 201235827

' * vv / ^DorAiviY What is not intended is the flow according to the present invention - the embodiment of the present invention; the present invention is based on the bit rate, voltage detection value and current detection value for power management. Let me explain it. The steps of the process 100 can be described as follows: Step 102: Start the process. Step 104: Start a power consumption judgment mechanism, and start to determine the system power consumption of the monitoring system 10 according to the voltage detection value, the current detection value, and the bit rate, and perform power management. • Step 106: The power detector 24 detects the current and voltage supplied by the power source 34 and provides corresponding current detection values and voltage detection values. Step 108: Compare whether the voltage detection value exceeds the voltage standard range; if yes, proceed to step 11〇. The voltage standard range can be defined by a certain percentage increase or decrease of a voltage standard value. For example, the voltage standard range may be 10% increase or decrease of the voltage standard value; if the voltage detection value is greater than or equal to the voltage standard value minus 10%, the voltage detection value is determined to be outside the voltage standard range. The voltage standard value can be the rated operating voltage of the monitoring system 10. • Step 110: Perform power exception processing to reduce power load and/or alert. Step 112. During the preset length, the current detection value of the power detector 24 is periodically recorded according to a preset time interval. Step 114: Calculate the average value of the current during the preset period according to the power extraction value accumulated in step 112, and set the current standard range accordingly. The current standard range can be defined by the current average value increase and decrease - ^ percentage. The normal current of the monitoring line 1G is related to the configuration of the monitoring system 1(), for example, the capacity of the hard disk 28 and the number of camera isolates are 201235827 』

The parameters of the TW7556PAMY and its extracted image will affect the current that is not required by the monitoring system 1(). Thus, the present invention can derive the current standard range by monitoring the normal current consumption of the monitoring system 10 via the long-term statistical averaging of steps 112 and 114. In step 112, the time interval for performing statistics may be minutes, and the period of statistics may be hours or one to several days. On the other hand, if the monitoring system 10 has a standard rated current, the current standard range can be defined according to the rated voltage IL, so that steps 1 1 2 and 1 1 4 can be omitted. Step 116: Compare whether the voltage flow detection value exceeds the current standard range; if yes, proceed to step 110. Step 118. Compare whether the bit rate exceeds the bit rate standard range; if yes, proceed to step 110; if not, return to step 1〇6, continuously according to the instantaneous current detection value, voltage detection value and bit Rate for power management. It is emphasized that the process 100 is only one embodiment of the present invention. Steps 108, 116, and 118 may also be performed synchronously; if only one of the three is "YES", then proceed to step 110. Alternatively, step 108 or 116 (and step U2/114) may be omitted; for example, only steps 108 and 118 may be performed to perform electrical management based on the voltage detection value and the bit rate. In summary, the technology of the present invention can perform power management according to bit rate, voltage detection value and/or current detection value, which not only saves power consumption of the monitoring system, but also maintains power supply stability and avoids the operation of the monitoring system. The invention has been described above by way of a preferred embodiment, and is not intended to limit the invention. Those having ordinary skill in the art to which the present invention pertains can be made into various types without departing from the spirit and scope of the present invention.

1 W /DOOKAiViY Change and retouch. Therefore, the scope of the invention is defined by the scope of the appended claims. BRIEF DESCRIPTION OF THE DRAWINGS Fig. 1 is a monitoring system in accordance with an embodiment of the present invention. Figure 2 is a flow chart of power management in accordance with an embodiment of the present invention. [Main component symbol description] 10: Monitoring system • 12: Main controller 14: Video decoder 16: Video processor 18: Digital signal processor 20: Network controller 22a, 22b: Camera 24: Power detector 26 : Output circuit ^ 28 : Hard disk 34 30 : Display controller 32 : Display power supply 9

Claims (1)

201235827 · * i W7556PAMY VII. Patent application scope ·· h — A power management method applied to a monitoring system that processes the media stream at the X-bit rate, and the power management method package obtains the Bit rate; compare the bit material to (4) out - the default bit rate standard range; and the right 7G rate exceeds the bit rate standard source exception handling. Dingdian 2. The power management method according to the scope of the patent scope of the application, the basin: the monitoring line is provided with a plurality of internal circuits, and the power is supplied to the external circuit by the power supply. The power supply exception process includes at least one of reducing the load of the power supply and the circuit. Turning off the external circuit or turning off the power management method described in the first aspect of the patent scope, wherein the Shai monitoring system extracts images to form external processing, including: t (four) financial flow, (d) power supply example reduces the monitoring system Capture the parameters of the image. / 4 ·- Application to the power management method of the monitoring system The monitoring system draws power from a power source and processes the media stream at a rate of _ _ Μ ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; Obtain the bit rate; detect the power provided by the power source to obtain a detection value. Compare the bit rate over the shirt - the default bit (4) standard range 201235827 • J w/oookaMY compare W贞 measurement value exceeds— The preset power standard range; and the right bit rate exceeds the bit rate standard range or the price measurement exceeds the power standard range, and the execution-power exception processing. 5. The power management method according to claim 4, wherein the monitoring system is provided with a plurality of internal circuits, the power supply further supplying power to an external circuit; and the power supply exception processing comprises: reducing the load of the power supply Turning off the external circuit or turning off at least one of the internal circuits. A 6. The power management method described in claim 4 of the patent scope extracts an image to form the media stream, and the power supply example reduces the parameters of the image captured by the 亥海监控系统. 8: 7. The power management method according to item 4 of the patent application scope of the present invention further includes: recording the range of the power standard according to the record according to the preset time interval during the period of the power supply extension. 8. The monitoring system comprises: and a media processing module, which processes the media stream at a one-rate rate; at a meta-rate, the taste element is a material-preset bit circumference, if the bit material exceeds the (four) bit rate The standard controller performs a power exception process. 201235827 TW7556PAMY 9. If the patent application scope item 8 contains a plurality of internal circuits, and the j control system 'is further included power to an external circuit; and the power supply exception processing package, the power supply further provides a part to electrically close the external Electric "closes the inside 10. According to the patent application, the eighth media processing (four) and the handle monitoring system, wherein the camera is less than one camera to receive the image of each of the cameras and form the media stream, and The power_external processing includes: Reduce the parameters of each camera to capture images. 11. The monitoring system of claim 14, wherein the monitoring system further comprises: a detection value; a power detector detecting the power provided by the power source to obtain a The main controller can compare whether the detected value exceeds a preset power standard range; if the detected value exceeds the power standard range, the main controller performs the power exception processing. 12