CN106534795A - Material level tracking video monitoring device and method - Google Patents

Abstract

The invention discloses a material level tracking video monitoring device and a method, wherein the device comprises a cloud deck, a distance measuring module, a camera, an inclination angle module, an intelligent integrated mainboard, a video overlapping module and a video display device, wherein the cloud deck provided with the camera is connected with the video display device; the distance measurement module and the inclination angle module are respectively arranged on two sides of the camera and connected with the intelligent integrated mainboard; the camera is connected with the video superposition module; the intelligent integrated mainboard is connected with the video superposition module; the video overlapping module is connected with the video display device. The method comprises the following steps: the method comprises the steps of collecting a material level distance signal and a camera inclination angle signal, measuring the true height of the material level, setting a marking line through parameters, adjusting the position of the marking line in real time according to the inclination angle signal, and simultaneously displaying the bin condition, the test point position and the material level value under the reference of the marking line on a monitoring picture, so that the material level monitoring is visual and digital, and the video monitoring of the material condition of each point in the bin and the real-time monitoring of the material level of the measurement point are realized.

Description

A material level tracking video monitoring device and method

technical field

The invention belongs to the field of monitoring and measurement, in particular to a material level tracking video monitoring device and method, in particular to the field of monitoring and measurement of various closed solid storage bins.

Background technique

At present, various manufacturers generally have problems such as material silo blockage, shed material, leaks, and hardening. Because the silo is a closed container, it is difficult to grasp the specific situation in the silo and cannot guarantee the normal supply of raw materials, resulting in frequent shutdowns and maintenance. Not only It increases the operation and maintenance cost of the manufacturer, and there is also a huge potential safety hazard. Accurately monitoring the specific conditions inside the silo and measuring the material level at each point in the silo is the fundamental basis for solving this problem.

The material level monitoring products on the market for this problem are divided into video monitoring system and material level detection system. For the video monitoring system, the operator can only judge the general situation of the material level inside the silo through the monitoring video, but cannot grasp the height of the material level at each point inside the silo, and cannot digitally control the feeding and stopping of the silo. For the material level detection system, the operator can only get the approximate height of the material level, but cannot grasp the actual level of the uneven material level inside the silo, let alone know the specific material level point where the problem occurs. Neither the video surveillance system nor the material level detection system can truly and comprehensively reflect the actual material level inside the silo, and cannot provide an intuitive and reasonable basis for solving the problems existing in the silo.

In order to eliminate safety hazards, save operation and maintenance costs, and comprehensively monitor the actual material level inside the silo, it is necessary to develop a material level tracking video monitoring device that can not only video monitor the internal situation of the silo, but also intelligently track the height and distance of the material level. So as to ensure a comprehensive grasp of the real situation inside the silo.

Contents of the invention

In order to solve the problem of material level monitoring inside the silo, the present invention proposes a material level tracking video monitoring device and method, which can remotely, truly, comprehensively and reliably monitor the height of the material level inside the silo and the distribution of raw materials in the silo, and Track the material level height of specific points.

In order to solve the problems of the technologies described above, the present invention is achieved through the following technical solutions:

The invention provides a material level tracking video monitoring device, which includes: a pan/tilt (1), a ranging module (2), a camera (3), an inclination module (4), an intelligent integrated main board (5), and a video superimposition module ( 6), video display device (7), wherein,

The pan/tilt (1) is connected to the video display device (7) through a control cable;

The distance measuring module (2) is fixedly installed on one side of the camera (3), contains a light source inside, and is connected to the intelligent integrated main board (5);

The camera (3) is an integral part of the pan/tilt (1);

The inclination module (4) is fixedly installed on the other side of the camera (3) and connected to the intelligent integrated main board (5);

The intelligent integrated motherboard (5) is composed of a single-chip microcomputer, a crystal oscillator circuit, a reset circuit, a power supply module, a level conversion module and a TTL remote transmission module, one side is connected with the ranging module (2) and the inclination module (4), and the other The side is connected with the video overlay module (6);

The video superimposition module (6) is a device that can superimpose Chinese and English characters or picture information on the composite video signal, one side is connected with the camera (3) and the intelligent integrated main board (5), and the other side is connected with the video display device (7) connected;

The video display device (7) is a user terminal integrating video storage and display and pan-tilt control, receives video signals from the video superimposition module (6), stores and displays them, and is connected to the pan-tilt (1).

The present invention also provides a material level tracking video monitoring method, which includes the following process P:

P1: After the video display device (7) is connected to the pan/tilt (1) through the control cable, set the communication parameters on the video display device (7) to complete the communication between the video display device (7) and the pan/tilt (1);

P2: After the communication is successful, transmit the action signal to the PTZ ( 1) Perform up, down, left and right control;

P3: The camera (3) and the distance measuring module (2) and inclination module (4) respectively fixed on both sides of the camera rotate with the pan/tilt (1) to monitor the material level in the silo in an all-round way;

P4: When the gimbal (1) rotates, the ranging module (2), camera (3), and tilt module (4) will generate the same angle value α with the vertical direction, and the tilt module (4) will measure the angle value α in real time And transmit it to the I/O port of the single-chip microcomputer in the intelligent integrated motherboard (5) with a TTL level signal;

P5: Synchronized with P4, the internal light source of the distance measuring module (2) sends a light signal to the material level in the silo, and the position of the light spot is the material level measurement point, and the distance measuring module (2) uses light emission and reflection time to measure Calculate the distance L between the distance measuring module (2) and the material level measurement point, and transmit it to the receiving end of the intelligent integrated main board (5) with a TTL level signal;

P6: The single-chip microcomputer in the intelligent integrated motherboard (5) uses the internal program to set the height value H from the distance measurement module (2) to the bottom of the silo, the distance value L measured by the distance measurement module (2), and the inclination module ( 4) The measured angle value α is calculated by the formula h=H-L×cosα to calculate the material level height value h of the material level measurement point;

P7: Synchronized with P6, the single-chip microcomputer in the intelligent integrated motherboard (5) formulates the position of the elevation line at different heights according to the set geometric shape parameter values in the warehouse, and adjusts the elevation in real time through the angle value α measured by the inclination module (4) The relative position of the line in the video;

P8: The single-chip microcomputer in the intelligent integrated main board (5) transmits the relative position of the material level height value h of the measurement point and the elevation line to the video superimposition module (6) with a TTL level signal;

P9: The video superimposition module (6) receives the real-time video signal measured by the camera (3) and the TTL signal sent by the intelligent integrated motherboard (5), and processes the TTL signal into a video superimposition signal and superimposes it on the real-time video signal. The video signal is transmitted to the video display device (7) through the video cable, and the video is recorded, archived and displayed;

P10: The picture displayed by the video display device (7) includes the real-time monitoring picture inside the silo, the real-time material level height and elevation line of the measuring point.

Compared with the prior art, the present invention has the following advantages:

1. The monitoring information is intuitive and reliable, and the remote camera is used to monitor the internal conditions of the silo in real time;

2. With real-time tracking and ranging function, it can track and locate specific points on the silo video and accurately display the material level;

3. With elevation line reference, the position of the elevation line can be adjusted according to the angle of the camera to make the all-round material level information more intuitive.

4. The measurement point can track the material level with the up, down, left, and right rotation of the pan/tilt (1), and measure the position of the specified point to judge whether there are problems such as material blockage, shed material, leakage, and hardening in the silo.

5. The relative display position of the elevation line is adjusted according to the angle between the camera (3) and the vertical direction, and provides real-time and accurate information on the material level in the silo.

6. Realized the function of not only video monitoring the internal situation of the silo, but also tracking the material level tracking video monitoring that reflects the height and distance of the material level at the positioning point, and can fully grasp the real situation inside the silo.

Description of drawings

Figure 1: Schematic diagram of a material level tracking video monitoring device.

Fig. 2: The schematic diagram of the circuit connecting the intelligent integrated motherboard of the present invention with each module.

In the figure: 1. pan-tilt; 2. ranging module; 3. camera; 4. inclination module; 5. intelligent integrated motherboard; 6. video overlay module;

detailed description

As shown in Figure 1, the specific implementation of the present invention is: the pan-tilt (1) is installed on the top of the inside of the silo, and inside the pan-tilt (1), the ranging module (2) and the inclination module (4) are respectively fixed on the camera The two sides of (3) rotate with the pan/tilt (1) to track and monitor the material level of each point in the silo; the actual measurement on the spot obtains the height value H from the distance measuring module (2) to the bottom of the silo and the internal geometry of the silo. The parameters are written into the single-chip program together; the internal light source of the distance measuring module (2) emits light signals to generate light spots on the material to locate the measurement point, and the distance measuring module (2) calculates the distance measuring module ( 2) The distance value L between the material level measurement point; the angle value α generated by the inclination module (4) measuring the distance measurement module (2) due to the rotation with the pan/tilt (1) and the vertical direction; the intelligent integrated main board (5) and The video superimposition module (6) is installed outside the silo; the ranging module (2) and the inclination module (4) communicate with the intelligent integrated main board (5) through communication cables and transmit measurement signals respectively, and the single-chip microcomputer in the intelligent integrated main board (5) According to the height value H from the distance measuring module (2) to the bottom of the silo, the distance signal L, the angle signal α, and the internal geometric parameters of the silo are converted into the material level height signal h and the elevation line position signal of the corresponding measurement point, and are uniformly transmitted to The video superimposition module (6); the camera (3) collects the video signal in the silo, and the video signal reflects the actual material level in the silo and the position of the measuring point marked by the distance measuring module (2) through the light spot; the camera (3) passes the video cable The video signal is transmitted to the video superimposition module (6), and the video superposition module (6) superimposes the material level height and the position of the elevation line on the video signal, and then transmits the superimposed video signal to the video display device in the control room through the video cable (7); The video display device (7) is installed in the centralized control room to display the specific situation in the silo, the measurement point marked by the light spot and the material level height of the measurement point under the reference of the elevation line; by operating the video display device (7) "Up", "Down", "Left", "Right", and "Stop" operation buttons on the top, send control signals to control the rotation of the pan/tilt (1) and change the video monitoring range and the location of the material level measurement point , the intelligent integrated main board (5) changes the material level height signal and the elevation line position signal through the change of the material level distance signal L and the angle value α of the distance measuring module (2), and displays it in real time on the video display device (7), realizing Real-time monitoring of video monitoring and material level tracking of material conditions at various points inside the silo.

Claims (2)

1. a kind of material position follows the trail of video monitoring device and method, it is characterised in that include：Head（1）, range finder module（2）, shooting Head（3）, dip module（4）, intelligent integrated mainboard（5）, video laminating module（6）, record display device（7）, wherein,

The head（1）By controlling cable and the record display device（7）It is connected；

The range finder module（2）It is fixedly mounted on the camera（3）Side, which is internal to include light source, with intelligent integrated master Plate（5）It is connected；

The camera（3）It is the head（1）Part；

The dip module（4）It is fixedly mounted on the camera（3）Opposite side, with the intelligent integrated mainboard（5）It is connected；

The intelligent integrated mainboard（5）By single-chip microcomputer, crystal oscillating circuit, reset circuit, power module, level switch module and TTL Remote-transmission module composition, side and the range finder module（2）With the dip module（4）It is connected, opposite side is superimposed with the video Module（6）It is connected；

The video laminating module（6）It is a kind of setting for Chinese and English character or pictorial information can be superimposed in composite video signal It is standby, side and the camera（3）, the intelligent integrated mainboard（5）It is connected, opposite side and the record display device（7）Phase Even；

The record display device（7）It is the storage of a collection video and display, the user terminal of cradle head control, receives video superposition Module（6）Vision signal and store display, with the head（1）It is connected；

The record display device（7）For the control head（1）Drive the camera（3）Be fixed on camera both sides The range finder module (2) and the dip module（4）Rotate together, change monitoring range and measurement point location, realize same When real-time monitoring to the video monitor of feed bin interior point material situation and material position.

2. a kind of material position follows the trail of video monitoring device and method, it is characterised in that including below scheme：

P1：The record display device（7）With the head（1）After controlling cable connection, in the record display device （7）Upper setting communications parameter, completes the record display device（7）With the head（1）Between communication；

P2：After communication success, by operating the record display device（7）In " upper turn ", " lower turn ", " left-hand rotation ", " right side Turn ", " stopping " operation button, action signal is reached into head（1）Carry out turning, it is lower turn, turn left, right-hand rotation is controlled；

P3：The camera（3）With the range finder module for being separately fixed at its both sides（2）With the dip module（4）With institute State head（1）Rotate, material position situation in comprehensive monitoring feed bin；

P4：In the head（1）During rotation, the range finder module（2）, the camera（3）, the dip module（4）Can be with Vertical direction produces same angle value α, the dip module（4）Angle value α is measured in real time and is sent to Transistor-Transistor Logic level signal The intelligent integrated mainboard（5）In single-chip processor i/o mouth；

P5：It is synchronous with P4, the range finder module（2）Internal light source send in the material position in optical signal to feed bin, produce hot spot Position is level gauging point, the range finder module（2）By light transmitting with reflection interval come calculating said ranging module（2）With Between level gauging point apart from L, and the intelligent integrated mainboard is sent to Transistor-Transistor Logic level signal（5）Receiving terminal；

P6：The intelligent integrated mainboard（5）In single-chip microcomputer by internal processes by the range finder module for setting（2）Away from material Orlop end height value H, the range finder module（2）Measure distance value L, the dip module for obtaining（4）The angle value α of measurement, passes through Formula h=H-L × cos α calculate level gauging point controlling level value h；

P7：It is synchronous with P6, the intelligent integrated mainboard（5）In single-chip microcomputer according to geometric shape parameterses value system in the storehouse for setting The absolute altitude line position of differing heights is made, and passes through the dip module（4）The angle value α real-time adjustments elevation line of measurement is being regarded Relative position in frequency；

P8：The intelligent integrated mainboard（5）In single-chip microcomputer by controlling level value h of measurement point and elevation line relative position with Transistor-Transistor Logic level signal transmission is to the video laminating module（6）；

P9：The video laminating module（6）Receive the video camera（3）The real time video signals for measuring and the intelligent integrated master Plate（5）The TTL signal for sending, and TTL signal is processed as video superposed signal is superimposed upon in real time video signals, will be after superposition Vision signal transmitted to the record display device by vision cable（7）, video recording is carried out to video and is achieved and is shown；

P10：The record display device（7）The picture of display includes real-time monitoring picture inside feed bin, measurement point Realtime Level Height and elevation line.