Automatic opening and closing control system for garbage discharge door

Abstract

The utility model discloses an automatic opening and closing control system for a garbage discharge door. The automatic opening and closing control system comprises a control unit, a switch driving mechanism of the discharging door (4) is connected with a control unit of the control system through a signal circuit, and the opening and closing of the discharging door (4) are controlled by the control unit; according to the control system, a microwave radar (1) is arranged above a discharging door (4), and the microwave radar (1) is in signal connection with a control unit; the microwave radar (1) receives signals reflected by vehicles entering and exiting the discharging door (4). By adopting the technical scheme, a ground induction coil is changed into microwave radar monitoring, and an original point-to-point photoelectric switch parallel to a discharge door is changed into the diagonal strip-shaped photoelectric grating, so that the detection surface and the detection length are increased, and meanwhile, the detection accuracy is greatly improved; the system does not have requirements on the type, the length and the chassis height of the discharging car any more, and the application range and the control reliability of the control system are greatly improved.

Description

Technical Field

[0001] This utility model belongs to the technical field of waste treatment equipment. More specifically, this utility model relates to an automatic opening and closing control system for a waste unloading gate. Background Technology

[0002] In existing technologies, the opening and closing control of garbage unloading doors uses inductive loops and point-to-point photoelectric switches, which have strict requirements on vehicle type and have the following drawbacks:

[0003] 1. A high vehicle chassis can prevent the inductive loop detector from detecting signals.

[0004] 2. When the vehicle is short, the inductive loop and the point-to-point photoelectric switch may not be able to be triggered simultaneously;

[0005] 3. When the dump truck is unloading, the point-to-point photoelectric switch will pass directly through the vehicle body, causing the photoelectric switch to detect no vehicle.

[0006] 4. The inductive loop is greatly affected by the steel reinforcement in the nearby concrete, making it prone to malfunction.

[0007] The above problems can cause the unloading gate to fail to open automatically, resulting in vehicles crashing into it while reversing; or, after opening, it may automatically shut down due to the loss of the ground loop and photoelectric signal, causing the vehicle to get stuck in the unloading gate.

[0008] Using keywords such as "unloading gate; automatic; opening; closing; control; vehicle; entry; exit", a search was conducted on existing publicly available technical documents, yielding the following results:

[0009] 1. Chinese patent document: "Intelligent Control System for Garbage Unloading Gate", Patent (Application) No.: 201910367214.5; the technical solution described therein is:

[0010] "The intelligent control system for garbage unloading gates includes a garbage unloading gate control box, a garbage unloading gate operation box, a garbage unloading gate status display unit, and vehicle sensors; the vehicle sensors detect whether the garbage truck has arrived at the corresponding garbage unloading gate; the garbage unloading gate operation box sends operation signals, and the operator can manually control the garbage unloading gate; the garbage unloading gate control box is used to control the opening and closing of the garbage unloading gate, send the working status signal of the unloading gate to the unloading gate status display unit, and send the unloading gate equipment data to the factory production control system; the factory production control system is connected to the garbage crane control system to collect the position information of the garbage crane, and realizes the locking control of the working status of the garbage unloading gate based on the position status of the garbage crane."

[0011] The technical effects described are:

[0012] "To solve the problem of interference or even collision between garbage cranes and garbage trucks during unloading, reduce the need for manual intervention, and improve the reliability and production efficiency of automation."

[0013] 2. Chinese patent document: "A method and system for intelligent vehicle guidance and control in a waste incineration power plant", patent (application) number: 202310835266.7; the technical solution described therein is:

[0014] "The intelligent vehicle guidance and control method and system for waste incineration power plants includes an unloading gate control device, a scheduling system, an identification device, a display device, and a software counting system. The identification device identifies and records the license plates of garbage trucks, as well as their entry and exit times. The software counting system uses license plate recognition and a background algorithm to record and count the vehicles. Once a preset number of vehicles has been reached, the system can stop external vehicles from entering. The scheduling system then guides the corresponding garbage trucks to their designated locations based on the license plate information and controls the unloading gate control device to open for unloading. The display device transmits the control information to the garbage truck driver, allowing the driver to clearly understand how to move the truck and when to unload."

[0015] The technical effects described are:

[0016] "Automatic guidance of garbage trucks entering the waste-to-energy plant improves processing efficiency and avoids harm to human health."

[0017] However, the technical solutions described in the aforementioned technical documents, as well as the existing publicly available technical solutions, have not been able to solve the problems and defects in the existing technology, such as "difficulty in detecting vehicles entering and exiting" and "misjudgment of vehicles". Utility Model Content

[0018] This utility model provides an automatic opening and closing control system for a garbage unloading gate, the purpose of which is to improve the accuracy of vehicle detection and the reliability of sensing, and to realize the automatic and safe opening and closing of the unloading gate.

[0019] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0020] The present invention relates to an automatic opening and closing control system for a garbage unloading gate, comprising a control unit; the unloading gate drive mechanism is connected to the control unit of the control system via a signal circuit, and the control unit controls the opening and closing of the unloading gate; the control system has a microwave radar installed above the unloading gate, and the microwave radar is connected to the control unit via a signal connection; the microwave radar receives signals reflected by vehicles entering and exiting the unloading gate.

[0021] The control system is equipped with safety photoelectric grilles on both sides of the road inside and outside the unloading gate; the safety photoelectric grilles are connected to the control unit of the control system via signal circuits.

[0022] On both sides of the road inside and outside the unloading gate, there are long strip-shaped anti-collision islands; the two anti-collision islands are parallel to each other, and the distance between them is greater than the width of the vehicles entering and exiting the unloading gate.

[0023] The safety photoelectric grille is installed on the anti-collision islands inside and outside the unloading gate.

[0024] Two safety photoelectric grilles are installed both inside and outside the unloading gate.

[0025] The two safety photoelectric grilles are installed on each side of the unloading gate road.

[0026] The two safety photoelectric grilles are diagonally installed on the crash barriers on both sides of the road.

[0027] The unloading gate adopts an opening and closing structure that moves linearly to both sides of the road, and the switch drive mechanism is guided by the sliding of the guide rail.

[0028] When the microwave radar and safety photoelectric grille receive a signal that the vehicle has exited or entered the unloading gate, the control unit controls the unloading gate to close after a 5-second delay.

[0029] This utility model adopts the above-mentioned technical solution. By replacing the ground induction coil with microwave radar monitoring and replacing the original point-to-point photoelectric switch parallel to the unloading gate with a diagonal long strip photoelectric grid, the detection surface and detection length are increased, and the detection accuracy is greatly improved. The system no longer has requirements on the type, length and chassis height of the unloading vehicle, which greatly improves the applicability and reliability of the control system. Attached Figure Description

[0030] The following is a brief explanation of the contents shown in the attached figure and the markings therein:

[0031] Figure 1 This is a front structural diagram of the automatic opening and closing control system for the garbage unloading gate of this utility model;

[0032] Figure 2 for Figure 1 A top view of the structure shown;

[0033] Figure 3 This is a three-dimensional structural diagram of the automatic opening and closing control system for the garbage unloading gate of this utility model;

[0034] Figure 4 The logic block diagram for triggering the opening of the unloading gate;

[0035] Figure 5 The logic diagram for triggering the closing of the unloading gate.

[0036] The diagram is marked as follows:

[0037] 1. Microwave radar, 2. Safety photoelectric grid, 3. Anti-collision island, 4. Unloading gate. Detailed Implementation

[0038] The specific embodiments of the present invention will be further described in detail below with reference to the accompanying drawings, so as to help those skilled in the art to have a more complete, accurate and in-depth understanding of the inventive concept and technical solution of the present invention.

[0039] like Figures 1 to 3 The structure shown is an automatic opening and closing control system for a garbage unloading door, including a control unit for automatically controlling the opening and closing of the garbage unloading door 4.

[0040] To address the problems and shortcomings of existing technologies, improve the accuracy and reliability of vehicle detection, and achieve the invention objective of automatic safety switching of unloading gates, the technical solution adopted by this utility model is as follows:

[0041] like Figures 1 to 3 As shown, the automatic opening and closing control system for the garbage unloading gate of this utility model includes a drive mechanism for the unloading gate 4 connected to the control unit of the control system via a signal circuit, which controls the opening and closing of the unloading gate 4. The control system has a microwave radar 1 installed above the unloading gate 4, which is connected to the control unit via a signal connection. The microwave radar 1 receives signals reflected by vehicles entering and exiting the unloading gate 4.

[0042] See Figure 1 The control system consists of a microwave radar 1, a long strip-shaped safety photoelectric grille 2, a crash barrier 3, and a discharge gate 4. This invention improves upon the existing point-to-point photoelectric switch parallel to the discharge gate by replacing it with a diagonally angled long strip-shaped photoelectric grille. Figure 2 As shown by the two diagonal lines, the detection area and detection length are increased; at the same time, the inductive loop is replaced with microwave radar for monitoring, such as... Figures 1 to 3 The detection range of the microwave radar 1 shown (the elliptical area in the figure) greatly improves the detection accuracy; the system control no longer has requirements on the type, length and chassis height of the unloading vehicle, which greatly improves the applicability and reliability of the control system.

[0043] The specific settings are as follows:

[0044] The control system is equipped with safety photoelectric grilles 2 on both sides of the road inside and outside the unloading gate 4; the safety photoelectric grilles 2 are connected to the control unit of the control system through a signal circuit.

[0045] The safety photoelectric grille 2 obtains information about vehicles entering and exiting the unloading gate 4 through photoelectric sensing and sends the information to the control unit of the control system. Finally, the control unit, in conjunction with the information detected by the microwave radar 1, controls the unloading gate 4 to open and close.

[0046] On both sides of the road inside and outside the unloading gate 4, there are long strip-shaped anti-collision islands 3; the two anti-collision islands 3 are parallel to each other, and the distance between them is greater than the width of the vehicles entering and exiting the unloading gate 4.

[0047] The anti-collision island 3 serves to guide vehicles entering and exiting the unloading gate 4, preventing vehicles from deviating from the correct path, and the safety photoelectric grille 2 is installed on the anti-collision island 3 inside and outside the unloading gate 4.

[0048] Two safety photoelectric grilles 2 are installed inside and outside the unloading gate 4.

[0049] The purpose of the above settings is to ensure that vehicles can be accurately detected both inside and outside the unloading gate 4.

[0050] The two safety photoelectric grilles 2 are installed on each side of the unloading gate 4.

[0051] The two safety photoelectric grilles 2 are diagonally installed on the crash barriers 3 on both sides of the road.

[0052] The two safety photoelectric grids 2 are set diagonally to increase the detection area and detection length, thus preventing missed detections.

[0053] The unloading gate 4 adopts an opening and closing structure that moves linearly to both sides of the road, and the switch drive mechanism is guided by the sliding of the guide rail.

[0054] By using a guide rail to slide, the unloading gate 4 will not interfere with other vehicles on the road after it is opened.

[0055] To ensure safety, the microwave radar 1 and the safety photoelectric grille 2 receive a signal that the vehicle has driven out of or into the unloading gate 4, and the control unit controls the unloading gate 4 to close after a 5-second delay.

[0056] The control logic relationship of this utility model is as follows: Figure 4 , Figure 5 The diagram shown is the opening and closing logic diagram of unloading gate 4:

[0057] When a vehicle drives inward into the unloading gate 4 and passes through the area covered by the blue microwave radar 1 and the long strip safety photoelectric grille 2 above the unloading gate 4, it triggers the microwave radar 1 and the safety photoelectric grille 2 outside the unloading gate 4 to emit signals, and the unloading gate 4 immediately opens automatically.

[0058] When the vehicle enters the unloading gate 4, the microwave radar 1 and safety photoelectric grille 2 inside the unloading gate 4 are triggered to emit signals. The unloading gate 4 automatically closes after a 5-second delay, the microwave radar 1 and safety photoelectric grille 2 are reset, and the trigger signal disappears.

[0059] When the vehicle exits the unloading gate 4, it triggers the microwave radar 1 and safety photoelectric grille 2 inside the unloading gate 4 to send signals, and the unloading gate 4 immediately opens automatically.

[0060] After the vehicle exits the unloading gate 4, the microwave radar 1 and safety photoelectric grille 2 outside the unloading gate 4 are triggered to send signals. The unloading gate 4 closes automatically after a 5-second delay, the microwave radar 1 and safety photoelectric grille 2 reset, and the trigger signal disappears.

[0061] The present invention has been described above with reference to the accompanying drawings. Obviously, the specific implementation of the present invention is not limited to the above-described manner. Any non-substantial improvements made using the inventive concept and technical solution of the present invention, or the direct application of the inventive concept and technical solution to other situations without modification, are all within the protection scope of the present invention.

Claims

1. A garbage unloading door automatic opening and closing control system comprising a control unit, characterized in that: The opening and closing driving mechanism of the discharge gate (4) is connected with the control unit of the control system through a signal circuit, and the opening and closing of the discharge gate (4) is controlled by the control unit; the control system is provided with a microwave radar (1) above the discharge gate (4), the microwave radar (1) is signal-connected with the control unit; the microwave radar (1) receives signals reflected by vehicles entering and exiting the discharge gate (4); the control system is provided with safety photoelectric grating (2) on both sides of the road inside and outside the discharge gate (4); the safety photoelectric grating (2) is connected with the control unit of the control system through a signal circuit; long strip-shaped anti-collision islands (3) are respectively arranged on both sides of the road inside and outside the discharge gate (4); the two anti-collision islands (3) are parallel to each other, and the distance therebetween is greater than the width of the vehicle entering and exiting the discharge gate (4).

2. The automatic opening and closing control system of the trash unloading door according to claim 1, characterized in that: The safety photoelectric grating (2) is arranged on the anti-collision island (3) inside and outside the discharge gate (4).

3. The automatic opening and closing control system of the trash unloading door according to claim 2, characterized in that: Two safety photoelectric gratings (2) are respectively arranged inside and outside the discharge gate (4).

4. The automatic opening and closing control system of the trash unloading door according to claim 3, characterized in that: The two safety photoelectric gratings (2) are respectively arranged on both sides of the road of the discharge gate (4).

5. The automatic opening and closing control system for refuse unloading door according to claim 4, characterized in that: The two safety photoelectric gratings (2) are diagonally arranged on the anti-collision islands (3) on both sides of the road.

6. The automatic opening and closing control system for refuse unloading door according to claim 1, characterized in that: The discharge gate (4) adopts a straight-line translation opening and closing structure to the two sides of the road, and the opening and closing driving mechanism is guided through the guide rail sliding.

7. The automatic opening and closing control system for refuse unloading door according to claim 1, characterized in that: When the microwave radar (1) and the safety photoelectric grating (2) receive the signal that the vehicle has exited or entered the discharge gate (4), the control unit controls the discharge gate (4) to be closed after a delay of 5 seconds.

Images