Linkage control system and method for camera and perimeter security based on single chip microcomputer

Abstract

The present invention relates to a linkage control system and method for a camera and perimeter security based on a single-chip microcomputer, which monitors the data of the perimeter of a process equipment area through infrared ray counter-radiation or guardrails of an unattended SCADA system, and transmits the data to a monitoring system in real time; a linkage device of the monitoring system determines whether an alarm signal is detected, and if an alarm signal is detected, the camera switches from a watch position to a preset position according to the alarm area, and captures image information of the alarm area, otherwise it continues monitoring. The present invention reduces the difficulty of linkage between a pan-tilt camera and perimeter security, and improves the real-time performance and identification efficiency of monitoring.

Description

Technical Field

[0001] The invention belongs to the technical field of security systems, and in particular to a linkage control system and method for a camera and perimeter security based on a single chip microcomputer. Background Art

[0002] With the continuous development and construction of unmanned SCADA systems at home and abroad in recent years, there are more and more unmanned terminal sites, and security issues are becoming more and more important. When the original system was built, the station area security and video cameras were relatively independent, and basically had no linkage relationship. After the perimeter security alarm, it was necessary to manually remotely control the camera to view relevant images to identify the security situation. The present invention uses a method based on a single-chip circuit linkage module to propose a solution to the problem that perimeter security and PTZ cameras cannot be linked, and realizes the rapid positioning of alarm events. At present, most of the overall solutions on the market are platform-type products, which cannot meet the needs of actual flexible applications on site. Summary of the invention

[0003] The purpose of the present invention is to overcome the shortcomings of the prior art and propose a linkage control system and method for cameras and perimeter security based on a single-chip microcomputer, which can reduce the difficulty of linkage between pan-tilt camera and perimeter security and improve the real-time monitoring and identification efficiency.

[0004] The present invention solves the technical problem by adopting the following technical solutions:

[0005] The linkage control system of the camera and perimeter security based on the single-chip microcomputer includes an unattended SCADA system and an unattended monitoring platform. The unattended SCADA system automatically collects on-site data through the data terminal. The unattended SCADA system is connected to the unattended monitoring platform to transmit the on-site data to the unattended monitoring platform, and the unattended monitoring platform displays the collected on-site images.

[0006] Moreover, the unattended SCADA system is installed around the process equipment area, including a process platform, an automatic control PLC and lamp poles, wherein the lamp poles are arranged around the process equipment area, and adjacent lamp poles are protected by infrared beams or guardrails, and corresponding data is collected, and the output end of the infrared beam or guardrail is connected to the automatic control PLC, and the output end of the PLC is connected to the process platform, which is used to check the parameters in the equipment process area and whether there are alarms between adjacent lamp poles.

[0007] Moreover, the automatic control PLC is a PLC in the process equipment area.

[0008] Moreover, the unattended monitoring platform includes a video platform, a linkage device and a camera, wherein the camera is installed on a lamp pole, the output end of the infrared beam or guardrail is connected to the input end of the linkage device, the output end of the linkage device is connected to the input end of the camera, and the output end of the camera is connected to the video platform.

[0009] Moreover, the camera is used to collect image information of the monitored on-site environment, and the linkage device is used to determine the alarm area based on the corresponding data collected by infrared radiation or guardrails, and send it to the camera. The camera moves from the watch position to the preset position according to the alarm area, captures image information of the alarm area, and sends the image information to the video platform.

[0010] A linkage control method for a camera and a linkage control system for perimeter security based on a single chip microcomputer comprises the following steps:

[0011] Step 1: The infrared beam or guardrail of the unmanned SCADA system monitors the data of the perimeter of the process equipment area, and transmits the data to the PLC and linkage device of the unmanned SCADA system in real time;

[0012] Step 2: The linkage device is used to determine whether an alarm signal is detected based on the data of infrared radiation or guardrail monitoring. If an alarm signal is detected, proceed to step 3, otherwise return to step 1;

[0013] Step 3: The linkage device determines the alarm area and controls the camera to move from the watch position to the preset position according to the alarm area to capture image information of the alarm area.

[0014] Furthermore, the step 3 comprises the following steps:

[0015] Step 3.1, the linkage device determines the alarm area according to the data of infrared radiation or guardrail monitoring;

[0016] Step 3.2: The camera moves from the watch position to the preset position according to the alarm area, and captures the image information of the alarm area;

[0017] Step 3.3, the video platform determines whether the alarm signal source exists based on the image transmitted in real time by the camera. If so, the camera image continues to be kept at the alarm position. Otherwise, after a delay of 30 seconds, a command is sent to return the camera monitoring image to the watch position.

[0018] The advantages and positive effects of the present invention are:

[0019] 1. The present invention monitors the data of the perimeter of the process equipment area through infrared radiation or guardrails of the unmanned SCADA system, and transmits the data to the monitoring system in real time; the linkage device of the monitoring system determines whether an alarm signal is detected. If an alarm signal is detected, the camera switches from the watch position to the preset position according to the alarm area, and captures the image information of the alarm area, otherwise it continues to monitor. The present invention reduces the difficulty of linkage between the PTZ camera and the perimeter security, and improves the real-time performance and identification efficiency of monitoring.

[0020] 2. The present invention interlocks with the infrared guardrail alarm to automatically rotate the PTZ camera to the alarm position after the perimeter infrared guardrail collision alarm, and can realize rapid video positioning and comparison of alarm events. The present invention simplifies the business of manually viewing related videos based on alarm information, can improve the effect of video monitoring, and can also solve "false alarms" and handle alarm events on time, improve business efficiency, and ensure the safety of unmanned sites. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 This is a schematic diagram of the deployment of the unattended SCADA system of the present invention;

[0022] Figure 2 This is a structural diagram of the linkage control system of the present invention;

[0023] Figure 3 This is a flow chart of the linkage control method of the present invention. DETAILED DESCRIPTION

[0024] The present invention is further described in detail below with reference to the accompanying drawings.

[0025] The linkage control system of the camera and perimeter security based on the single-chip microcomputer includes an unattended SCADA system and an unattended monitoring platform. The unattended SCADA system automatically collects on-site data through the data terminal. The unattended SCADA system is connected to the unattended monitoring platform to transmit the on-site data to the unattended monitoring platform. The unattended monitoring platform displays the pictures of the collection site. The dispatching personnel can intuitively obtain the current operating status and instrument data of each monitoring point through the system, and use this to direct production, centrally allocate resources, and judge and respond to emergencies.

[0026] like Figure 1 As shown, the unattended SCADA system is installed around the process equipment area, including a process platform, an automatic control PLC and lamp poles, wherein the lamp poles are arranged around the process equipment area, and adjacent lamp poles are protected by infrared beams or guardrails, and corresponding data are collected, the output end of the infrared beam or guardrail is connected to the automatic control PLC, and the output end of the PLC is connected to the process platform, which is used to check the parameters in the equipment process area and whether there are alarms between adjacent lamp poles, wherein the automatic control PLC is the PLC in the process equipment area.

[0027] The unattended monitoring platform includes a video platform, a linkage device and a camera, wherein the camera is installed on a lamp pole, the output end of the infrared beam or guardrail is connected to the input end of the linkage device, the output end of the linkage device is connected to the input end of the camera, and the output end of the camera is connected to the video platform.

[0028] The camera is used to collect image information of the monitored on-site environment. The linkage device is used to determine the alarm area based on the corresponding data collected by infrared radiation or guardrails, and send it to the camera. The camera moves from the watch position to the preset position according to the alarm area, captures image information of the alarm area, and sends the image information to the video platform.

[0029] The information of the on-site perimeter alarm point enters the production system of on-site data collection through the switch quantity. After the on-site perimeter alarm, a pop-up window alarm can be issued on the process platform. Due to the code stream and bandwidth reasons, the on-site video is separated from the production data and transmitted to the central dispatching platform separately. After the on-site perimeter alarm, the central dispatching personnel can remotely operate the pan-tilt camera to check the situation of the relevant site according to the alarm information to confirm the alarm information. The real-time performance is not good and manual operation is required in a timely manner.

[0030] The present invention connects the on-site perimeter alarm point to the linkage module. After the linkage module receives the on-site perimeter switch alarm signal, it calls the corresponding camera to the preset position of the corresponding alarm side through RS485 communication. This method can realize the automatic linkage call of the camera to the corresponding alarm area and realize the function of real-time video monitoring. After the alarm disappears for 30 seconds, the linkage module automatically sends a communication instruction to the relevant camera to return to the watch position (Note: the camera watch position is the monitoring process equipment area and automatic control device).

[0031] The watch position is the default position of the camera after power-on or restart. This position is set to adjust the monitoring field of view to an angle that can cover the monitoring process equipment area and automatic control device after the camera is powered on.

[0032] Each camera is equipped with two preset positions, which are the infrared counter-radiation defense zones on the two adjacent sides of the camera. The monitoring angle and focal length of the two preset positions are based on the infrared counter-radiation defense zones that can cover each side of the defense zone. The focus and angle are adjusted based on the center point of the infrared counter-radiation defense zone on each side to complete the preset position setting.

[0033] like Figure 2 As shown, the working process of the linkage device is: the infrared perimeter alarm signal is connected to the input end of the linkage module (the input interface is tentatively set to 6 channels, Figure 2 In the normal rectangular perimeter, 4-way detection can meet the requirements. Considering the need to increase perimeter detection in special circumstances, the module is set to 6-way input) to detect whether an alarm occurs through the input detection circuit.

[0034] At the same time, the communication control line of the camera is connected to the RS485 communication port of the linkage module to control the camera action; if no perimeter alarm is detected, the relevant camera maintains the watch position and does not perform relevant actions; if an infrared perimeter alarm is detected on one side, the main control MCU process program of the linkage module determines and sends the communication command called by the preset position of the associated camera to the corresponding camera (the two cameras are distinguished by different communication addresses). The camera can be adjusted to the corresponding preset position in real time to judge the alarm perimeter situation, thereby improving the real-time efficiency of the dispatch center's video surveillance and completing the video recording of the corresponding alarm area as soon as possible.

[0035] After the perimeter alarm signal disappears, the main control MCU of the linkage module sends the communication command called by the watch position of the associated camera to the corresponding camera after a program delay of 30S. The camera returns to the watch position to continue monitoring the process equipment area and the automatic control device.

[0036] A linkage control method for a linkage control system of a camera and perimeter security based on a single chip microcomputer, such as Figure 3 As shown, the following steps are included:

[0037] Step 1: The infrared beam or guardrail of the unmanned SCADA system monitors the data of the perimeter of the process equipment area, and transmits the data to the PLC and linkage device of the unmanned SCADA system in real time;

[0038] Step 2: The linkage device is used to determine whether an alarm signal is detected based on the data of infrared radiation or guardrail monitoring. If an alarm signal is detected, proceed to step 3, otherwise return to step 1;

[0039] Step 3: The linkage device determines the alarm area and controls the camera to move from the watch position to the preset position according to the alarm area to capture image information of the alarm area.

[0040] Step 3.1, the linkage device determines the alarm area according to the data of infrared radiation or guardrail monitoring;

[0041] Step 3.2: The camera moves from the watch position to the preset position according to the alarm area, and captures the image information of the alarm area;

[0042] Step 3.3, the video platform determines whether the alarm signal source exists based on the image transmitted in real time by the camera. If so, the camera image continues to be kept at the alarm position. Otherwise, after a delay of 30 seconds, a command is sent to return the camera monitoring image to the watch position.

[0043] It should be emphasized that the embodiments described in the present invention are illustrative rather than restrictive. Therefore, the present invention includes but is not limited to the embodiments described in the specific implementation manner. Any other implementation manners derived by those skilled in the art based on the technical solution of the present invention also fall within the scope of protection of the present invention.

Claims

1. A linkage control method for a linkage control system of a camera and perimeter security based on a single chip microcomputer, characterized in that: The systems used include an unattended SCADA system and an unattended monitoring platform. The unattended SCADA system automatically collects on-site data through a data terminal. The unattended SCADA system is connected to the unattended monitoring platform to transmit on-site data to the unattended monitoring platform, which displays the images of the collected site. The unattended SCADA system is installed around the process equipment area, including a process platform, an automatic control PLC and lamp poles, wherein the lamp poles are arranged around the process equipment area, and adjacent lamp poles are protected by infrared ray beams or guardrails, and corresponding data is collected, and the output end of the infrared ray beam or guardrail is connected to the automatic control PLC, and the output end of the PLC is connected to the process platform, which is used to check the parameters in the equipment process area and whether there are alarms between adjacent lamp poles; The unattended monitoring platform includes a video platform, a linkage device and a camera, wherein the camera is installed on a lamp pole, the output end of the infrared beam or the guardrail is connected to the input end of the linkage device, the output end of the linkage device is connected to the input end of the camera, and the output end of the camera is connected to the video platform; The camera is used to collect image information of the monitored on-site environment, and the linkage device is used to determine the alarm area according to the corresponding data collected by infrared radiation or guardrails, and send it to the camera. The camera switches from the watch position to the preset position according to the alarm area, captures the image information of the alarm area, and sends the image information to the video platform; The camera is equipped with two preset positions, which are the infrared counter-radiation defense zones on the two adjacent sides of the camera. The monitoring angle and focal length of the two preset positions are based on the infrared counter-radiation defense zones that can cover each side of the defense zone. The focus and angle are adjusted based on the center point of the infrared counter-radiation defense zone on each side to complete the preset position setting. The automatic control PLC is a PLC in the process equipment area; The linkage control method comprises the following steps: Step 1: The infrared beam or guardrail of the unmanned SCADA system monitors the data of the perimeter of the process equipment area, and transmits the data to the PLC and linkage device of the unmanned SCADA system in real time; Step 2: The linkage device is used to determine whether an alarm signal is detected based on the data of infrared radiation or guardrail monitoring. If an alarm signal is detected, proceed to step 3, otherwise return to step 1; Step 3: The linkage device determines the alarm area and controls the camera to switch from the watch position to the preset position according to the alarm area to capture image information of the alarm area; Step 3.1, the linkage device determines the alarm area according to the data of infrared radiation or guardrail monitoring; Step 3.2: The camera moves from the watch position to the preset position according to the alarm area, and captures the image information of the alarm area; Step 3.3, the video platform determines whether the alarm signal source exists based on the image transmitted in real time by the camera. If so, the camera image continues to be kept at the alarm position. Otherwise, after a delay of 30 seconds, a command is sent to return the camera monitoring image to the watch position.

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