WO2018153234A1

WO2018153234A1 - Graphical power line monitoring device and method

Info

Publication number: WO2018153234A1
Application number: PCT/CN2018/075054
Authority: WO
Inventors: 蔡富东; 王成; 王力民; 崔利; 吕昌峰
Original assignee: 山东信通电子股份有限公司
Priority date: 2017-02-21
Filing date: 2018-02-02
Publication date: 2018-08-30
Also published as: CN106657930A

Abstract

The invention discloses a graphical power line monitoring device and method implemented by adopting a silicon on chip (SoC) system and a camera connected thereto. The camera is controlled by the SoC to acquire, in real time, an image of a power transmission line, and to transmit the image of the power transmission line to the SoC. The SoC is used to control the camera to acquire, in real time, the image of the power transmission line, encode the image of the power transmission line, and output the same in a wireless manner. Furthermore, the SoC comprises a sleep control module capable of configuring the SoC to enter a sleep mode, thereby reducing power consumption. Since the SoC has small power consumption and is compact in size, when the SoC and the camera are installed to a power line to perform graphical monitoring, power consumption and costs can be reduced. The device is easy to install and has high integrity.

Description

Image monitoring device and method for transmission line

Technical field

The invention relates to the field of online monitoring of transmission lines, in particular to a transmission line monitoring method and monitoring equipment.

Background of the invention

In order to be able to transmit power, it is necessary to set up transmission lines at both ends of the transmission, and the transmission lines are divided into overhead transmission lines and cable circuits. In order to ensure the safe transmission of power, it is necessary to ensure the safety of the transmission line, so it is necessary to monitor in real time whether the transmission line is in a normal working state. This problem can be solved by real-time image monitoring of the transmission line.

At present, the transmission line image monitoring device is used for real-time image monitoring of the transmission line. Generally, the transmission line image monitoring device is implemented by using a camera + wireless communication module, and specifically, a camera + network video server (DVS, digital video server) can be used. Implementation, wherein the camera and the DVS are connected through a Q9 or BNC interface, for real-time imaging of the transmission line, obtaining a real-time image of the transmission line, and transmitting to the DVS; the DVS has image coding and wireless transmission for receiving the transmission line The real-time image is processed and, if an abnormality is detected in the transmission line through the real-time image, an alarm signal is sent through the network.

However, image monitoring of transmission lines using the above devices has the following disadvantages:

1) The device consumes a relatively large amount of power and has a large volume and a high cost. The DVS power consumption in the device is generally about 6 watts, and the sleep power cannot be reduced to reduce the power consumption. The power consumption of the camera in the device is generally about 10 watts, and there is no low power consumption, so the device works normally. The power requirement of the power supply is relatively high. In order to meet the 30-day working time requirement, when the device is powered, a lead-acid battery or a gel battery with a larger volume capacity is used, and the power required for the battery-powered solar panel is correspondingly higher. Large, resulting in a relatively high cost of the device.

2) The installation of the device is troublesome and laborious. The device is large in size and heavy in weight. Generally, the weight of the whole set of equipment can reach 40 kg or more. To be installed on a high transmission line, the transmission line is generally installed on the transmission line tower, and at least 3 to 4 people need to complete the cooperation and take the skating. Other tools, especially in some remote mountainous areas, are more prominent.

3) The device has poor integration. In order to realize various functions of monitoring, the device requires a plurality of different functional modules to be combined, and the design cost is high. The device generally includes: a digital signal processing (DSP) or an ARM chip with a codec, a communication transmission module, a memory chip, an analog camera, and a power supply system, etc., belonging to a modular combination, the device The individual functional modules are independent of each other, with high design cost and low integration.

Therefore, how to provide a low-power and low-cost, easy-to-install and highly integrated transmission line monitoring device in image monitoring of a transmission line has become an urgent problem to be solved.

Summary of the invention

In view of this, an embodiment of the present invention provides an image monitoring device for a transmission line, which can reduce power consumption and cost when performing image monitoring on a transmission line, is easy to install, and has high integration.

The embodiment of the invention further provides an image monitoring method for a transmission line, which can reduce power consumption and cost when performing image monitoring on a transmission line, is easy to install and has high integration.

According to the above object, the present invention is achieved as follows:

An image monitoring device for a transmission line, the monitoring device is mounted on a power transmission line, and includes: a solar power supply unit 101, an on-chip system SoC 102, and a camera 103. The SoC 102 is connected to the camera 103, wherein

a solar power supply unit 101 for supplying power to the SoC 102 and the camera 103;

The camera 103 is configured to acquire a transmission line image in real time under the control of the SoC 102, and send the acquired transmission line image to the SoC 102;

The SoC 102 is configured to control the camera to acquire the data line image in real time, encode the transmission line image obtained from the camera 103, and then wirelessly output the image.

An image monitoring method for a transmission line includes:

The monitoring device includes a SoC, a camera and a solar energy functional unit, the SoC is connected to the camera, the SoC and the camera are powered by the solar power supply unit, and the monitoring device is erected on the power transmission line;

The SoC controls the camera to obtain the transmission line image in real time;

The SoC encodes the acquired transmission line image and outputs it wirelessly.

It can be seen from the foregoing solution that the apparatus and method provided by the embodiments of the present invention are implemented by using a system on chip (SoC)+camera, the SoC is connected to the camera, and the camera is used to obtain the transmission line image in real time under the control of the SoC. The acquired transmission line image is sent to the SoC, and the SoC is used to control the camera to acquire the data line image in real time, encode the transmission line image from the camera, and wirelessly output. Further, the SoC has a sleep control module, which can make the SoC sleep and reduce power consumption. Due to the low power consumption and small size of the SoC, when the camera is mounted on the transmission line for image monitoring, it can reduce power consumption and cost, and is easy to install and highly integrated.

BRIEF DESCRIPTION OF THE DRAWINGS

1 is a schematic structural diagram of an image monitoring apparatus for a power transmission line according to an embodiment of the present invention;

2 is a flowchart of an image monitoring method for a power transmission line according to an embodiment of the present invention;

FIG. 3 is a flowchart of a specific example of an image monitoring method for a power transmission line according to an embodiment of the present invention.

Reference numeral

101-Solar power supply unit

1011-Solar panel

1012-storage module

1013-Power Conversion Circuit

102-SoC

1021-Central Processing Unit

1022-Image Acquisition and Coding Module

1023-baseband unit

1024-RF unit

1025-sleep control module

1026-GPS module

1027-Wireless Communication Module

1028-USB interface

103-camera

Mode for carrying out the invention

The present invention will be further described in detail below with reference to the accompanying drawings.

In order to reduce the power consumption and cost in the image monitoring of the transmission line, the installation is easy and the integration is high. The embodiment of the invention is implemented by the SoC+ camera, the SoC is connected with the camera, and the camera is used to obtain the real-time under the control of the SoC. The transmission line image transmits the acquired transmission line image to the SoC, and the SoC is used to control the camera to acquire the data line image in real time, and obtain the transmission line image from the camera for encoding and wireless output.

Further, the SoC has a sleep control module, which can make the SoC sleep and reduce power consumption. The SoC is powered by a solar powered unit.

In the image monitoring of the transmission line in the embodiment of the present invention, since the power consumption of the SoC is small and the volume is small, when the image is monitored along with the camera on the transmission line, the power consumption and cost can be reduced, and the installation is easy and the integration is high.

1 is a schematic structural diagram of an image monitoring device for a power transmission line according to an embodiment of the present invention. The device is mounted on a power transmission line, and includes: a solar power supply unit 101, a SoC 102, and a camera 103. The SoC 102 is connected to the camera 103.

The SoC 102 is configured to control the camera to acquire the data line image in real time, encode the transmission line image obtained from the camera 103, and wirelessly output the image.

In this configuration, the solar power supply unit 101 further includes: a solar panel 1011, an energy storage module 1012, and a power conversion circuit 1013, wherein

After the solar panel 1011 collects the solar energy, the solar energy is sent to the energy storage module 1012 for storage, and the power conversion circuit 1013 converts the stored energy into electrical energy to supply power to the SoC 102 and the camera 103.

In this structure, the SoC 102 specifically includes a central processing unit 1021, an image acquisition and encoding module 1022, a baseband unit 1023, and a radio frequency unit 1024. The central processing unit 1021 is configured to control the image capturing and encoding module 1022, the baseband unit 1023, and the radio frequency unit 1024. The image acquisition and encoding module 1022 is configured to collect and encode the transmission line image obtained from the camera 103, convert the transmission line image into a picture or video of a set format, and the baseband unit 1023 is configured to complete the wireless signal in the mobile network. The demodulation, descrambling, despreading and decoding operations, and the final decoded digital signal is transmitted to the central processing unit 1021; the radio frequency unit 1024 is configured to wirelessly output the encoded transmission line image under the control of the central processing unit 1021. .

In the structure, the SoC 102 further includes a sleep control module 1025 for causing the SoC 102 to switch between the sleep mode and the working mode under the control of the central processor 1021. Here, when the SoC 102 receives the control command, the SoC 102 can be controlled to perform the transition in the sleep mode and the work mode.

In the structure, the SoC 102 further includes a global positioning system (GPS) module 1026 and a wireless communication module 1027 for respectively performing positioning and wireless communication on the SoC 102 under the control of the central processing unit 1021. Here, the wireless communication module 1027 can adopt a WiFi or Bluetooth mode.

In this configuration, a Universal Serial Bus (USB) interface 1028 is also included in the SoC for debugging the SoC or providing access to the camera 103.

In this configuration, the SoC further includes a storage unit 1029 for storing the encoded transmission line image and then transmitting it to the baseband unit 1023 for processing.

In this configuration, the SoC 102 and the camera 103 are connected by a Mobile Industry Processor (MIPI) interface.

As can be seen from Figure 1, in the SoC, combined with high-speed communication mobile broadband technology such as 3G or 4G and powerful multimedia functions, 3D graphics function and GPS engine, can bring extremely high processing speed to monitoring equipment, very low Power consumption and realistic multimedia and comprehensive connectivity.

An application processor (AP) and a baseband processor (BP) are integrated in the SoC, including a baseband unit, a radio unit, a storage unit, a GPS module, image acquisition and encoding processing, WiFi, Bluetooth, and/or Functional modules such as the USB interface.

The baseband unit in the SoC includes various baseband system processing capabilities. The baseband system includes baseband processing not limited to GSM, CDMA, CDMA2000, TD-WCDMA, and LTE. It is identified and processed by the baseband unit to satisfy multiple network standards. Demand. The transmission line image monitoring devices proposed in the background technology all adopt a single signal processing system, and the embedded system and the wireless module are different in the device, so the production management is troublesome. The monitoring device provided by the embodiment of the present invention can be unified and managed conveniently without distinguishing between the system and the hardware.

The USB interface in the SoC can be used as a dedicated debugging interface, which is convenient for design and debugging. At the same time, the interface can also adapt to the camera access of the USB interface, and realize the dual camera or multi-camera extended shooting function; the standard WiFi and Bluetooth interfaces can be used for both. Extended access to other smart devices can also be used as a debug interface.

The MIPI interface in the SoC provides access to the camera. The image acquisition and encoding module in the SoC can convert the image captured by the camera into a picture or video format of a set format under the control of the central processor, and store it in the storage module. And then send to the specified server platform according to the set server address.

SoC supports a variety of embedded systems, integrated AP can develop a variety of different application designs, with good secondary development capabilities, while SoC itself has a strong storage capacity and extended storage capacity, can store a large amount of data information.

SoC has low power consumption in normal working mode, and can be controlled by internal registers to enter low-power sleep mode, baseband unit, storage unit, GPS module, image acquisition and encoding module, WiFi module and Bluetooth in SoC. The modules are all turned off, and only some functions of the RF unit are maintained. The power consumption in sleep mode is less than one percent of the normal mode, and only a few milliamps of standby current is required. The SoC can be quickly triggered by an external trigger signal or by an internal timer. Switch to working mode.

FIG. 2 is a flowchart of an image monitoring method for a power transmission line according to an embodiment of the present invention, where specific steps are as follows:

Step 201: The monitoring device comprises a SoC, a camera and a solar energy functional unit, the SoC is connected to the camera, the SoC and the camera are powered by the solar power supply unit, and the monitoring device is erected on the power transmission line;

Step 202: The SoC controls the camera to acquire the transmission line image in real time;

Step 203: The SoC encodes the acquired transmission line image and outputs it by wireless.

In the method, the encoding is performed by converting the transmission line image into a picture or video of a set format.

In the method, the wireless mode output is: performing baseband modulation on the encoded transmission line image, and performing radio output by using a radio frequency method.

The method further includes: the SoC has a sleep function, and performs conversion in the sleep mode and the work mode.

The method further includes: the SoC has a positioning function and a wireless communication function.

The method further includes: having a USB interface in the SoC, debugging the SoC or providing access to the camera 103.

The following is a specific example.

In this specific example, the SoC can be implemented using a Qualcomm model MSM8916 chip with a Subscriber Identity Module (SIM) card configured in the SoC. The SoC runs an Android system, and integrates a USB module, a WiFi module, an image acquisition and coding unit, and a 4G communication module in the SoC, supports the LTE system, and supports GPS positioning, and integrates a camera with an MIPI interface of 8 million pixels.

FIG. 3 is a flowchart of a specific example of an image monitoring method for a power transmission line according to an embodiment of the present invention, where specific steps are as follows:

Steps 301-303, the image monitoring device of the power transmission line is initialized, wherein the SoC starts the wireless communication network, and when the device automatically performs the communication network proofreading, the clock of the current communication network is acquired, and the file transmission protocol of the current communication network is simultaneously FTP) the server exchanges information and obtains various parameters of the server device;

Various parameters include configuration parameters such as server-side device switching time, number of photos taken, picture pixels, etc., and time-based photographing and transmission according to the working mode set by the parameters.

In this step, the photographed pictures are stored in JPEG format, and different image sizes and resolutions are set according to different customer requirements;

In this step, the internal storage space of the SoC can be set, for example, 1G, and the large-capacity TF card can be expanded, and the maximum 128G space;

Step 304: After the SoC configuration is completed, the sleep mode is entered, and the power is saved to the maximum extent;

Steps 305-307: When the SoC receives the remote command sent by the communication network, the SoC is woken up, and triggers a photograph or triggers a timed photograph according to the instruction;

Step 308, the SoC starts to take a photo of the camera;

In this step, the monitoring device adjusts the photographing angle according to different scenes during installation, and the SoC's WiFi interface is connected with the on-site debugging tool, and the captured image can be obtained in real time and displayed on the hand-held debugging tool screen, which makes the on-site installation more convenient;

Steps 309-310: The SoC encodes the acquired transmission line image, and outputs it by wireless mode to determine whether the transmission is completed. If not, the transmission is continued. If yes, the process returns to step 304.

The monitoring device adopting the embodiment of the invention has low power consumption, so the energy storage module configured is a 10AH lithium iron phosphate battery, and the volumetric weight is greatly reduced compared with the lead acid or gel battery used by the background monitoring device, and the working time can be More than 30 days.

It can be seen that the monitoring device provided by the embodiment of the invention greatly reduces the design cost; at the same time, the design of the integrated chip further reduces the volume of the monitoring device and the capacity of the peripheral power source, so that the monitoring device can be integrated. AP+BP is integrated in the monitoring device, which makes the monitoring device more abundant and image processing more convenient.

The SoC in the embodiment of the present invention is a system-on-chip integrated with functions of signal processing, radio frequency, baseband, image acquisition, and sleep control, instead of using an on-chip system that has been integrated and has been integrated. The signal processing function is completed by the baseband unit and the radio frequency unit, and the image acquisition function is completed by the image acquisition and encoding module. The SoC provided by the embodiment of the present invention further integrates the wireless communication function and the sleep function, thereby making the use more convenient. The invention is not limited to the power supply mode using solar charging, and other power supply modes such as induction power take-off, AC/DC power take-off, etc., are all included in the protection scope of the present invention.

The specific embodiments of the present invention have been described in detail, and are not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and scope of the present invention are intended to be included within the scope of the present invention.

Claims

An image monitoring device for a transmission line, characterized in that the monitoring device is installed on a power transmission line, comprising: a solar power supply unit (101), an on-chip system SoC (102) and a camera (103), a SoC (102) and a camera (103) connected, where

a solar power supply unit (101) for supplying power to the SoC (102) and the camera (103);

a camera (103) for acquiring a transmission line image in real time under the control of the SoC (102), and transmitting the acquired transmission line image to the SoC (102);

SoC (102) is used for controlling the camera to acquire the data line image in real time, encoding the transmission line image obtained from the camera (103), and then wirelessly outputting.
The device according to claim 1, wherein the solar power supply unit (101) further comprises: a solar panel (1011), an energy storage module (1012), and a power conversion circuit (1013), wherein

After the solar energy (1011) collects the solar energy, the solar energy is sent to the energy storage module (1012) for storage, and the power conversion circuit (1013) converts the stored energy into electrical energy to supply power to the SoC (102) and the camera (103).
The device according to claim 1, wherein the SoC (102) comprises a central processing unit (1021), an image acquisition and encoding module (1022), a baseband unit (1023), and a radio frequency unit (1024), wherein

The central processing unit (1021) is configured to control the image acquisition and encoding module (1022), the baseband unit (1023), and the radio frequency unit (1024);

The image acquisition and encoding module (1022) is configured to collect and encode the transmission line image obtained from the camera (103), and convert the transmission line image into a picture or video of a set format;

The baseband unit (1023) is configured to perform demodulation, descrambling, despreading, and decoding of the wireless signal in the mobile network, and transmit the final decoded digital signal to the central processing unit (1021);

The radio frequency unit (1024) is for wirelessly outputting the encoded transmission line image under the control of the central processing unit (1021).
The apparatus according to claim 1 or 3, wherein said SoC (102) further comprises a sleep control module (1025) for causing the SoC (102) to sleep under the control of the central processor (1021) Mode and working mode are converted.
The apparatus according to claim 4, wherein said SoC (102) further comprises a global positioning system GPS module (1026) and a wireless communication module (1027) for controlling the central processing unit (1021), respectively. The SoC (102) is positioned and wirelessly communicated.
The apparatus of claim 5, wherein the SoC further comprises a universal serial bus USB interface (1028) for debugging the SoC or providing access to the camera (103).
The apparatus according to claim 5, wherein said SoC further comprises a storage unit (1029) for storing the encoded transmission line image and transmitting it to the baseband unit (1023) for processing.
An image monitoring method for a transmission line, comprising:

The monitoring device includes a SoC, a camera and a solar energy functional unit, the SoC is connected to the camera, the SoC and the camera are powered by the solar power supply unit, and the monitoring device is erected on the power transmission line;

The SoC controls the camera to obtain the transmission line image in real time;

The SoC encodes the acquired transmission line image and outputs it wirelessly.
The method according to claim 8, wherein said encoding is: converting a transmission line image into a picture or video of a set format;

The wireless mode output is: performing baseband modulation on the encoded transmission line image, and performing radio output by using a radio frequency method.
The method according to claim 9, further comprising: the SoC has a sleep function, and performs conversion in a sleep mode and an operation mode;

Or / and SoC have positioning and wireless communication functions;

Or / and have a USB interface in the SoC, debug the SoC or provide access to the camera 103.