Near-electricity safety alarm device for hoisting operation

Abstract

A lifting operation near-electricity safety alarm device comprises a core processing unit, the core processing unit is electrically connected with a laser radar, the laser radar is driven by a radar rotating motor to rotate, and the radar rotating motor is controlled by the core processing unit. The surrounding environment is detected through laser, and the device is simple, portable and easy to install and transport; the limitation on the installation environment in the entity fence deployment is overcome; a safe environment model is constructed through environment modeling, and adjustment and change of the construction environment on the crossing area can be rapidly adapted. According to the invention, multi-machine cooperation can be realized to monitor the same area; the added monitor can be autonomously connected to the system, and on-site setting is not needed; a monitoring area can be set according to needs and can be set at a far end; the fence is a non-entity fence and can allow people outside a monitoring area to freely enter and exit.

Description

Technical Field

[0001] The utility model relates to the technical field of electric power safety protection equipment, in particular to a safety alarm device for near-electricity during lifting operations. Background Art

[0002] Perimeter defense systems are now an important part of security systems and are widely used in high-risk areas such as military bases, government agencies, labor camps, industrial bases, nuclear power plants, borders, airports, oil and gas industries, commercial buildings and warehouses, important cultural relics protection sites and museums, banks, and communication hubs. The most commonly used technical solutions in the application and development of perimeter defense systems include infrared counter-radiation, pulse electronic fences, and tension electronic fences.

[0003] In the existing safety fence technology, Zhou Hui and others in the "Development and Application of Infrared Radiation Intelligent Safety Fence for Substations" used infrared radiation as a sensing element and designed a safety fence for use in substations. The active infrared radiation principle can avoid the possibility of infrared radiation false alarms caused by external climate and temperature interference, and light disturbance or product failure has signal prompts, which can greatly reduce the false alarm rate of equipment.

[0004] "Application of Infrared Counter-beam Sensing Technology in Emergency Lane Monitoring System" Yu Biao and others used infrared counter-beam technology to design an emergency lane monitoring system that can detect vehicles at 60KM / H, with a critical detection index of 0.252s.

[0005] The structure of the pulse electronic fence is relatively simple, mainly composed of the system host and the front end of the fence. The front end of the fence is a tangible physical barrier composed of a load-bearing bracket, an intermediate support rod, an insulator, a warning sign, a tensioner, etc. The system host is the core of the pulse electronic fence system, and has the functions of sending pulse signals, detecting signals, and alarm output. When working, the host sends out a pulse voltage of up to 5-10kV at a set frequency, which is transmitted to the exposed wires on the fence and forms a loop. Once the intruder tears off and damages the front end of the fence, causing the loop to be open, or touches two adjacent fence bare wires at the same time during climbing, causing the loop to be short-circuited, the alarm signal will be triggered, and the system host will start the alarm device. The pulse electronic fence designed by Zhang Quan and others in "Pulse Electronic Fence Perimeter Alarm System" has a pulse voltage of 6000-1O000V, but the repetition frequency of the pulse is extremely low, only once per second. The duration of the pulse is ≤0.1.

[0006] 《Design of Intelligent High-voltage Pulse Electronic Fence System》 Lou Ying designed an intelligent high-voltage pulse electronic fence system based on PIC16F877. Using MCUPC16F8T7 as the core component in the design of intelligent high-voltage pulse electronic fence can make the circuit design simple, the high voltage stable, the false alarm rate low, and the overall performance good.

[0007] Tension-type electronic fences use the principle of tension to detect intrusion. When an intruder climbs, pulls, lifts, or cuts the steel rope of the fence, the tension sensing module converts the force signal exerted by the intruder on the fence line into an electrical signal and transmits it to the alarm controller, which activates the alarm device. The advantages of tension-type electronic fences are low false alarm rate and good stability, but the disadvantages are high price and insufficient deterrence. "Design Principles and Application Status of Perimeter Prevention Alarm System of Tension-Type Electronic Fence" Lin Kai believes that the design of tension-type electronic fences is more intelligent and humane, so that it can distinguish between non-malicious touch and malicious touch, thereby avoiding accidental injury and indirect damage.

[0008] However, the above solutions are all physical fences, which require a lot of manpower and material resources for deployment. At the same time, subsequent maintenance is required after deployment, which is costly and inconvenient to deploy. At the same time, physical fences have high requirements for deployment and cannot be installed on any terrain. They cannot be moved after deployment. Summary of the invention

[0009] The technical problem to be solved by the utility model is to provide a lifting operation near-electricity safety alarm device, which provides a safety monitoring device for the lifting operation.

[0010] In order to solve the above technical problems, the technical solution adopted by the utility model is:

[0011] A lifting operation near-electricity safety alarm device comprises a core processing unit, the core processing unit is electrically connected to a laser radar, the laser radar is driven to rotate by a radar rotating motor, and the radar rotating motor is controlled by the core processing unit.

[0012] The radar rotating motor is electrically connected to the level and power converter, and the level and power converter is electrically connected to the output end of the core processing unit.

[0013] The level and power converter is electrically connected to the sound and light alarm device.

[0014] The core processing unit input terminal is electrically connected to the control button.

[0015] The core processing unit is communicatively connected with the wireless transmission module.

[0016] The output end of the core processing unit is electrically connected to the TFT display.

[0017] The above-mentioned laser radar is connected to the core processing unit via a USB interface.

[0018] The core processing unit is electrically connected to the memory.

[0019] The utility model provides a lifting operation near-electricity safety alarm device, which detects the surrounding environment through laser detection and realizes the detection of the surrounding environment through calculation and analysis of the returned laser beam. The device is simple, portable, easy to install and transport. By modeling the surrounding environment, analyzing the difference between the normal and current models, and analyzing whether a crossing event occurs, it can be deployed in various complex environments, overcoming the limitations of the installation environment in the deployment of physical fences. The safety environment model is constructed through environmental modeling, which can quickly adapt to the adjustments and changes of the crossing area of ​​the construction environment. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The utility model is further described below in conjunction with the accompanying drawings and embodiments:

[0021] Figure 1 This is a schematic diagram of the structure of the near-electricity safety alarm device of the utility model;

[0022] Figure 2 It is a connection diagram of the core processing unit, radar rotating motor and level and power converter of the utility model;

[0023] Figure 3 This is a structural diagram of the connection between the laser radar and the USB interface.

[0024] In the figure: core processing unit 1, laser radar 2, radar rotating motor 3, level and power converter 4, TFT display 5, wireless transmission module 6, control button 7, USB interface 8, memory 9, sound and light alarm device 10. DETAILED DESCRIPTION

[0025] The technical solution of the present utility model is further described below in conjunction with the accompanying drawings and embodiments.

[0026] A lifting operation near-electricity safety alarm device comprises a core processing unit 1, wherein the core processing unit 1 is electrically connected to a laser radar 2, the laser radar 2 is driven to rotate by a radar rotating motor 3, and the radar rotating motor 3 is controlled by the core processing unit 1.

[0027] The radar rotary motor 3 is electrically connected to the level and power converter 4 , and the level and power converter 4 is electrically connected to the output end of the core processing unit 1 .

[0028] The level and power converter 4 is electrically connected to the sound and light alarm device 10 .

[0029] The input end of the core processing unit 1 is electrically connected to the control button 7 .

[0030] The core processing unit 1 is communicatively connected to the wireless transmission module 6 .

[0031] The output end of the core processing unit 1 is electrically connected to the TFT display 5 .

[0032] The above-mentioned laser radar 2 is connected to the core processing unit 1 via the USB interface 8 .

[0033] The core processing unit 1 is electrically connected to the memory 9 .

[0034] Example:

[0035] The structure diagram of the near-electric safety alarm device for this lifting operation is as follows Figure 1 As shown, the device includes a core processing unit 1, a laser radar 2, a radar rotating motor 3, a level and power converter 4, a TFT display 5, a wireless transmission module 6, a control button 7, and a USB interface 8.

[0036] The core processing unit 1 adopts a Raspberry Pi processing unit, and the wireless transmission module 6 adopts a WIFI8266 wireless transmission module.

[0037] The laser beam emitted by the laser radar 2 in the near-electric safety alarm device detects whether there is a passing object, and the laser radar is driven to rotate by the radar rotating motor 3, so that the emitted laser beam forms a plane. The USB interface 8 realizes the connection between the laser radar and the Raspberry Pi core processing unit 1, and transmits the laser radar data to the Raspberry Pi. The level and power converter 4 transmits the Raspberry Pi to output the control signal to the radar rotating motor 3 and realizes the voltage and power matching of the Raspberry Pi 1 level with the laser radar motor 3. The control button 7 is directly connected to the Raspberry Pi GPIO interface, and the Raspberry Pi determines the corresponding GPIO port signal to obtain the control instruction. The wireless transmission module WIFI82666 is used to transmit device signals and receive input signals.

[0038] Level and power converter 4 Figure 2 As shown,

[0039] The wireless transmission module is connected to the Raspberry Pi via the USB port. The connection circuit is as follows: Figure 3 shown.

[0040] Working process: Raspberry Pi sends instructions to start the laser radar motor to rotate, receives detection data from the laser radar through the USB port, determines whether there is a passing object, controls the light to display the working status, and controls the light and buzzer to sound and light alarm when there is a passing object.

[0041] Remote alarm: When there is a passing object, the alarm information and the coordinates of the passing object relative to the monitor will be sent via WIFI.

[0042] Detection range setting: After setting on the host computer, send the setting data to the monitor via WIFI.

[0043] Security settings, whether there are objects passing through the monitoring area, sending alarm information, etc. are calculated and analyzed through the Raspberry Pi design program.

[0044] The remote alarm information can drive the near-electric security alarm to issue a remote sound and light alarm to alert the on-site staff when receiving the alarm signal sent by the near-electric safety alarm device.

[0045] The specific workflow is that after the near-electricity safety alarm is deployed, the operator sets the monitoring position. After the LiDAR starts running, the near-electricity safety alarm starts to detect the surrounding environment and scan the detection area at the same time. When the computing device finds that the data in the detection area is obviously abnormal, it starts to send out an alarm signal. After the alarm and the tablet main control receive the alarm signal, they start to alarm and alert the security personnel.

[0046] Working principle of the system: The laser radar emits a laser beam to measure the status of the warning area, forming an invisible isolation fence. The radar signal is transmitted to the calculation unit of the near-electric security module to calculate and analyze whether there is an object crossing the warning area, realizing the monitoring function of the warning area of ​​the near-electric construction site of the lifting operation.

Claims

1. A hoisting operation near-electricity safety alarm device, characterized by: The invention comprises a core processing unit (1), wherein the core processing unit (1) is electrically connected to a laser radar (2), the laser radar (2) is driven to rotate by a radar rotating motor (3), and the radar rotating motor (3) is controlled by the core processing unit (1).

2. A hoisting operation near-electricity safety alarm device according to claim 1, characterized in that: The radar rotating motor (3) is electrically connected to the level and power converter (4), and the level and power converter (4) is electrically connected to the output end of the core processing unit (1).

3. A hoisting operation near-electricity safety alarm device according to claim 2, characterized in that: The level and power converter (4) is electrically connected to the sound and light alarm device (10).

4. A hoisting operation near-electricity safety alarm device according to claim 3, characterized in that: The input end of the core processing unit (1) is electrically connected to the control button (7).

5. A hoisting operation near-electricity safety alarm device according to claim 4, characterized in that: The core processing unit (1) is communicatively connected to the wireless transmission module (6).

6. A hoisting operation near-electricity safety alarm device according to claim 5, characterized in that: The output end of the core processing unit (1) is electrically connected to the TFT display (5).

7. A hoisting operation near-electricity safety alarm device according to claim 6, characterized in that: The laser radar (2) is connected to the core processing unit (1) via a USB interface (8).

8. A hoisting operation near-electricity safety alarm device according to claim 7, characterized in that: The core processing unit (1) is electrically connected to the memory (9).

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