Obstacle real-time detection and alarm device for tunnel construction transportation equipment operation

Abstract

The invention discloses an obstacle real-time detection and alarm device for tunnel construction transportation equipment operation, which relates to the technical field of tunnel construction and comprises a mounting base, a power supply module, a millimeter wave radar, a signal receiving module, an information processing module and a signal output module. The mounting base is mainly used for fixing the detection host and can be adjusted up and down and left and right at a certain angle; the power supply module is used for supplying power; the millimeter wave radar is used for actively detecting signal emission; the signal receiving module is an array antenna for receiving millimeter wave echo signals; the information processing module mainly comprises algorithm boundary setting and signal calculation processing so as to judge whether the obstacle is an effective obstacle or not; the information output module is used for converting the information into an alarm signal and giving an alarm through an alarm; the transportation equipment for tunnel construction has the beneficial effects that obstacles in front can be found in time, drivers and passengers are reminded, accidents caused by the obstacles are avoided, and operation safety of the transportation equipment for tunnel construction is facilitated.

Description

Technical Field

[0001] The present invention relates to the technical field of tunnel construction, and in particular to a real-time obstacle detection and alarm device for tunnel construction transportation equipment operation. Background Art

[0002] During tunnel construction, electric trams or trucks are often used to transport materials. However, due to the complex situations in tunnel construction, such as parallel or cross operations, limited light, and no obvious signs, especially electric trams often reverse, it is difficult for drivers to accurately identify the situation ahead. As a result, traffic accidents often occur, causing unnecessary losses. Considering that the current millimeter-wave radar technology is relatively mature, with advantages such as small size, low power consumption, and accurate ranging, and the relatively slow speed of transport vehicles used in tunnel construction, it is feasible to use it for real-time detection and alarm of obstacles in tunnel transportation equipment.

[0003] The present invention provides a real-time obstacle detection and alarm device for tunnel construction transportation equipment operation. The invention has the advantages of being small, flexible, economical and effective. It can detect effective dynamic and static obstacles in front of tunnel transportation vehicles in real time, which is beneficial to the safe operation of transportation equipment for tunnel construction. Summary of the invention

[0004] The purpose of the present invention is to provide a real-time obstacle detection and alarm device for tunnel construction and transportation equipment operation in order to solve the above-mentioned problem.

[0005] The present invention achieves the above-mentioned purpose through the following technical solutions: A real-time obstacle detection and alarm device for tunnel construction and transportation equipment operation, comprising a mounting base, the mounting base comprising a translation mechanism, a lifting mechanism and a mounting platform, the mounting platform being equipped with a power module, an audible and visual alarm, a voice broadcasting device and a detection host, the detection host comprising a millimeter wave radar, a signal receiving module, an information processing module and a signal output module; the millimeter wave radar sends a signal, the signal receiving module receives a millimeter wave echo signal, the information processing module processes and analyzes the echo signal, and the signal output module sends an action instruction to the audible and visual alarm and the voice broadcasting device.

[0006] Preferably, the translation mechanism is a screw slider mechanism.

[0007] Preferably, the lifting mechanism comprises a hydraulic cylinder and a telescopic column.

[0008] Preferably, the power module supplies power to the sound and light alarm, the voice broadcasting device and the detection host through electrical connection respectively.

[0009] Preferably, the signal receiving module is an array antenna for receiving millimeter wave echo signals.

[0010] Preferably: the information processing module includes algorithm boundary setting and signal calculation processing.

[0011] Preferably: the algorithm boundary settings include upper and lower heights, left and right widths, distance length, and tunnel boundary curvature.

[0012] Preferably: the main working steps include: Step S1: The entire system is powered; Step S2: pre-set the tunnel radius curvature, the minimum width and height parameters of the effective obstacle, the alarm distance and other parameters; Step S3: The millimeter wave radar transmits an active radar signal for detection, and the detection distance is not less than 20m; Step S4: The receiving antenna receives the millimeter wave radar feedback information and transmits it to the information processing module; Step S5: The information processing module filters, de-noises, and fuses the detected information to generate a virtual scene, and further compares it with the pre-set threshold conditions to determine effective obstacles; Step S6: When it is determined that there is a dynamic or static effective obstacle ahead, the signal is transmitted to the alarm and the voice broadcast speaker installed in the driver's cab via the signal transmission module to remind the driver and passengers to take measures.

[0013] Preferably: the information determination of the information processing module mainly includes the following algorithms: ① Identification and filtering of tunnel sidewalls and attached pipeline lines: Considering that the tunnel design has curvature control parameters, when the tunnel turns, the curvature of continuous objects is pre-set to be no less than the designed curvature parameters, and they can be filtered out; ② Obstacle determination: according to the specific vehicle's operating conditions and length, width and height, the minimum length, width and height parameters of the obstacle can be set. If the obstacle is larger than this parameter, it is considered an obstacle, and if it is smaller than this parameter, it is ignored; ③ The obstacle position can set control parameters on the left, right, top and bottom with the center in front of the radar installation position, and the parameter must be greater than the specifications of the transportation equipment. When the obstacle is within this range, it is determined as a valid obstacle and an alarm is issued.

[0014] Compared with the prior art, the beneficial effects of the present invention are: it is small, flexible, economical and effective, and can detect dynamic and static effective obstacles in front of tunnel transportation vehicles in real time, which is beneficial to the safe operation of transportation equipment used in tunnel construction. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0016] Figure 1 The present invention is a working principle diagram of a real-time obstacle detection and alarm device for tunnel construction and transportation equipment operation.

[0017] The following are the descriptions of the reference numerals: 1. Power module; 2. Detection host; 21. Millimeter wave radar; 22. Signal receiving module; 23. Signal processing module; 24. Signal transmission module; 3. Obstacle; 4. Sound and light alarm; 5. Voice broadcasting equipment. DETAILED DESCRIPTION

[0018] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, or it can be the internal connection of two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood by specific circumstances.

[0019] The present invention will be further described below in conjunction with the accompanying drawings: like Figure 1 As shown, a real-time obstacle detection and alarm device for tunnel construction and transportation equipment operation includes a mounting base, the mounting base includes a translation mechanism, a lifting mechanism and a mounting platform, a power module 1, an audible and visual alarm 4, a voice broadcasting device 5 and a detection host 2 are installed on the mounting platform, the power module 1 supplies power to the audible and visual alarm 4, the voice broadcasting device 5 and the detection host 2 respectively through electrical connection; the detection host 2 includes a millimeter wave radar 21, a signal receiving module, an information processing module, and a signal output module; the millimeter wave radar 21 is used for actively detecting signal emission, which can at least detect dynamic and static objects within 20m ahead, especially human breathing and slight movement; the signal receiving module is an array antenna for receiving millimeter wave echo signals; the information processing module processes and analyzes the echo signal, including algorithm boundary setting and signal calculation processing, the algorithm boundary setting includes upper and lower heights, left and right widths, distance lengths, and tunnel boundary curvatures; the signal output module sends action instructions to the audible and visual alarm 4 and the voice broadcasting device 5.

[0020] The translation mechanism is a screw slider mechanism, which realizes the left and right translation of the detection host 2; the lifting mechanism includes a hydraulic cylinder and a telescopic column, which realizes the lifting and lowering of the detection host 2 to meet the use requirements.

[0021] The working steps of a real-time obstacle detection and alarm device for tunnel construction and transportation equipment operation are as follows: Step S1: The entire system is powered; Step S2: pre-set the tunnel radius curvature, the minimum width and height parameters of the effective obstacle 3, the alarm distance and other parameters; Step S3: The millimeter wave radar 21 transmits an active radar signal for detection, and the detection distance is not less than 20m; Step S4: The receiving antenna receives the feedback information from the millimeter wave radar 21 and transmits it to the information processing module; Step S5: The information processing module filters, de-noises, and fuses the detected information to generate a virtual scene, and further compares it with a preset threshold condition to determine the effective obstacle 3; Step S6: When it is determined that there is a dynamic or static effective obstacle 3 ahead, the signal is transmitted to the alarm and the voice broadcast audio installed in the driver's cab via the signal transmission module 24 to remind the driver and passengers to take measures.

[0022] Among them, the information judgment of the information processing module mainly includes the following algorithms: ① Identification and filtering of tunnel side walls and attached pipeline lines: Considering that the tunnel design has curvature control parameters, when the tunnel turns, if the curvature of the continuous object is pre-set to be no less than the designed curvature parameter, it does not belong to obstacles and can be filtered out; ② Determination of obstacle 3: according to the specific vehicle operation conditions and length, width and height, the minimum length, width and height parameters of obstacle 3 can be set. If the length is greater than this parameter, it is considered as obstacle 3, and if it is less than this parameter, it is ignored; ③ The position of obstacle 3 can set control parameters on the left, right, top and bottom with the center in front of the radar installation position, and the parameter must be greater than the specification of the transportation equipment. When obstacle 3 is within this interval, it is determined to be a valid obstacle 3 and an alarm is issued.

[0023] The present invention is installed and applied in a certain shield tunnel construction project. The installation position of the millimeter wave radar 21 is centered at a height of 1.5 meters. The designed minimum turning radius of the tunnel is 200 meters. The minimum turning radius of 180 meters is preset to filter out the tunnel side walls and attachments such as wires and water pipes. The left and right up and down traffic intervals are set to 1 meter each. The minimum obstacle 3 is 10cm*10cm*10cm, and the warning distance is 10 meters. After the application of the present invention, missed and rolled materials and even pedestrians were detected many times, which effectively ensured the safe operation of tunnel construction and transportation equipment.

[0024] The mounting base, power module 1, millimeter-wave radar 21, translation mechanism, and lifting mechanism are all universal standard parts or components known to technical personnel in this field. Their structures and principles can be known to technical personnel in this field through technical manuals or through conventional experimental methods, so they will not be described in detail here.

[0025] The basic principles, main features and advantages of the present invention are shown and described above. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions are only for illustrating the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, and these changes and improvements all fall within the scope of the present invention to be protected.

Claims

1. A real-time obstacle detection and alarm device for tunnel construction and transportation equipment operation, comprising a mounting base, characterized in that: The mounting base comprises a translation mechanism, a lifting mechanism and a mounting platform, on which a power module (1), an audible and visual alarm (4), a voice broadcast device (5) and a detection host (2) are mounted, and the detection host (2) comprises a millimeter wave radar (21), a signal receiving module, an information processing module and a signal output module; the millimeter wave radar (21) sends a signal, the signal receiving module receives a millimeter wave echo signal, the information processing module processes and analyzes the echo signal, and the signal output module sends an action instruction to the audible and visual alarm (4) and the voice broadcast device (5).

2. The obstacle (3) real-time detection and alarm device for tunnel construction and transportation equipment operation according to claim 1, characterized in that: The translation mechanism is a screw slider mechanism.

3. The obstacle (3) real-time detection and alarm device for tunnel construction and transportation equipment operation according to claim 1, characterized in that: The lifting mechanism comprises a hydraulic cylinder and a telescopic column.

4. The obstacle (3) real-time detection and alarm device for tunnel construction and transportation equipment operation according to claim 1, characterized in that: The power module (1) supplies power to the sound and light alarm (4), the voice broadcasting device (5) and the detection host (2) respectively through electrical connection.

5. The obstacle (3) real-time detection and alarm device for tunnel construction and transportation equipment operation according to claim 1, characterized in that: The signal receiving module is an array antenna for receiving millimeter wave echo signals.

6. The obstacle (3) real-time detection and alarm device for tunnel construction and transportation equipment operation according to claim 1, characterized in that: The information processing module includes algorithm boundary setting and signal calculation processing.

7. The obstacle (3) real-time detection and alarm device for tunnel construction and transportation equipment operation according to claim 6, characterized in that: The algorithm boundary settings include upper and lower heights, left and right widths, distance lengths, and tunnel boundary curvatures.

8. The obstacle (3) real-time detection and alarm device for tunnel construction and transportation equipment operation according to claim 1, characterized in that: The main work steps include: Step S1: The entire system is powered; Step S2: pre-set the tunnel radius curvature, the minimum width and height parameters of the effective obstacle (3), the alarm distance and other parameters; Step S3: the millimeter wave radar (21) emits an active radar signal for detection, and the detection distance is not less than 20m; Step S4: the receiving antenna receives the feedback information from the millimeter wave radar (21) and transmits it to the information processing module; Step S5: The information processing module filters, reduces noise, and fuses the detected information to generate a virtual scene, and further compares it with a pre-set threshold condition to determine the effective obstacle (3); Step S6: When it is determined that there is a dynamic or static effective obstacle (3) ahead, the signal is transmitted to the alarm and the voice broadcast speaker installed in the driver's cab via the signal transmission module (24) to remind the driver and passengers to take measures.

9. The obstacle (3) real-time detection and alarm device for tunnel construction and transportation equipment operation according to claim 8, characterized in that: Information judgment mainly includes the following algorithms: ① Identification and filtering of tunnel side walls and attached pipeline lines: Considering that the tunnel design has curvature control parameters, when the tunnel turns, the curvature of continuous objects is pre-set to be no less than the designed curvature parameters, and they can be filtered out; ② Determination of obstacle (3): according to the specific vehicle operation conditions and length, width and height, the minimum length, width and height parameters of obstacle (3) can be set. If the length, width and height are greater than the parameters, it is considered to be obstacle (3); if the length, width and height are less than the parameters, it is ignored; ③ The position of obstacle (3) can be controlled by setting control parameters in the left, right, top and bottom directions with the radar installation position as the center, and the parameters must be greater than the specifications of the transportation equipment. When obstacle (3) is within the range, it is determined to be a valid obstacle (3) and an alarm is issued.

Images