Construction site moped with electronic fence early warning braking function

Abstract

The construction site moped with the electronic fence early warning braking function comprises a person standing platform and a carrying platform, a braking module and an alarm module are arranged on the carrying platform, the braking module is a drum type braking device additionally provided with a small electric push rod circuit, the alarm module is an audible and visual alarm, and the electronic fence early warning braking function is arranged on the carrying platform. The small electric push rod circuit, the audible and visual alarm and the vehicle-mounted UWB base station are electrically connected, and the vehicle-mounted UWB base station is connected with the hole UWB base station for distance measurement and controls on-off of the audible and visual alarm and the small electric push rod circuit according to the measured distance. According to the construction site moped provided by the utility model, the distance between the construction site moped and a dangerous area of a construction site can be accurately measured and calculated, and an audible and visual alarm can be given or automatic braking can be realized according to the risk level, so that the accident that the moped falls into an elevator shaft together with a person is avoided, and a safety guarantee is provided for a driver of the construction site moped; and the accident rate of the construction site is reduced.

Description

Technical Field

[0001] The utility model relates to a construction site power-assisted vehicle, in particular to a construction site power-assisted vehicle with an electronic fence early warning braking function. Background Art

[0002] With the development of the economy and the increase in the volume of construction projects, the construction site power-assisted vehicles used to transport construction materials have gradually been upgraded from hand-pushed to electric. For example, the utility model patent with the publication number CN219857305U discloses a construction site material handling vehicle with a built-in motor box to assist in pushing the storage bucket, which can improve the efficiency of transportation and unloading. However, this utility model has certain shortcomings. When workers press the motor switch to drive the vehicle close to some dangerous areas (such as edge holes, large machinery in operation, and steel storage areas, etc.), although there are usually protective fences around the holes, due to mental slackness, lack of safety awareness or excessive fatigue, the handbrake is not pulled down in time, and the power-assisted vehicle breaks through the fence, and even major safety accidents such as people and vehicles falling into the hole occur from time to time. For some workers who transport construction materials in excess and overload to improve work efficiency, the severity of such safety accidents is even more difficult to estimate due to the large inertia of the vehicle.

[0003] On the other hand, electric assisted bicycles, a frequently used means of transportation but with certain safety risks, are not currently linked to the smart construction site system. Managers cannot obtain the real-time dynamics of the assisted bicycles from the BI dashboard or other mobile devices to conduct risk control and record dangerous situations.

[0004] Therefore, in order to further prevent and avoid accidents where workers driving power-assisted carts fall into the edge of a hole, providing a construction site power-assisted cart with an electronic fence warning braking function is an issue that urgently needs to be addressed in the art. Utility Model Content

[0005] The technical problem to be solved by the utility model is to provide a construction site power-assisted vehicle with an electronic fence early warning braking function, which can automatically monitor whether the vehicle enters the dangerous range of the vertical opening, provide alarm and automatic braking effects, so as to avoid the occurrence of major safety accidents and build a solid safety production red line.

[0006] The technical solution adopted by the utility model to solve the above-mentioned technical problems is to provide a construction site power-assisted vehicle with an electronic fence early warning braking function, including a standing platform and a loading platform, wherein a braking module and an alarm module are arranged on the loading platform, wherein the braking module is a drum brake device equipped with a small electric push rod circuit, wherein the alarm module is an audible and visual alarm, wherein the small electric push rod circuit, the audible and visual alarm and the vehicle-mounted UWB base station are electrically connected, wherein the vehicle-mounted UWB base station is connected to the tunnel entrance UWB base station for distance measurement, and the switches of the audible and visual alarm and the small electric push rod circuit are controlled according to the measured distance.

[0007] Furthermore, the braking module, the alarm module, and the vehicle-mounted UWB base station are connected to a power module, and the power module is a detachable and rechargeable battery, and the power module has a power detection module.

[0008] Furthermore, the small electric push rod circuit includes a built-in motor and a push rod, the built-in motor drives the push rod to be connected to the drum brake, the power of the built-in motor is 50W, and the maximum stroke of the push rod is 5cm.

[0009] Furthermore, the sound and light alarm includes a sound amplification device and an LED alarm light. The maximum sound transmission distance of the sound amplification device can reach 500 meters, and the power of the LED alarm light is 30W.

[0010] Furthermore, a load weighing module is also provided on the loading platform.

[0011] Furthermore, it also includes setting a communication module to connect the BI dashboard and the mobile management terminal.

[0012] Compared with the prior art, the utility model has the following beneficial effects: the construction site power-assisted vehicle with electronic fence warning braking function provided by the utility model has the following advantages: 1. The utility model can more accurately calculate the distance between the construction site power-assisted vehicle and the dangerous area of ​​the construction site, and classify the risks at the same time: when a lower safety risk is found, an audible and visual alarm is issued; when a major safety risk is found, automatic braking is achieved, thereby avoiding the occurrence of accidents in which people and vehicles fall into the elevator shaft, providing safety protection for the drivers of the construction site power-assisted vehicles and reducing the accident rate on construction sites; 2. The utility model can use the 5G module to promptly feedback the real-time coordinates and dangerous situations of the vehicle to the smart construction site management system and archive them, thereby improving the management level and efficiency; 3. The load weighing module of the utility model can restrain the illegal behavior of transporting building materials with overweight and overload, and achieve the effect of being unable to start due to overload. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 An architecture diagram of an electronic fence system constructed for the construction site power-assisted vehicle of the utility model;

[0014] Figure 2 This is a schematic diagram of the structure of a construction site power-assisted vehicle with an electronic fence early warning braking function according to the utility model;

[0015] Figure 3 It is a structural schematic diagram of the alarm brake module of the construction site power-assisted vehicle of the utility model.

[0016] The markings in the figure are:

[0017] 1. Vertical opening; 2. UWB base station at the opening; 3. Opening fence; 4. Red area; 5. Orange area; 6. Power-assisted vehicle; 7. 4G / 5G router; 8. BI dashboard; 9. Mobile management terminal; 61. Braking module; 62. Alarm module; 63. Vehicle-mounted UWB base station; 64. Power supply and power detection module; 65. Standing platform; 66. Load weighing module; 67. Loading platform; 611. Brake pedal; 612. Electric motor; 613. Push rod; 614. Drum brake. DETAILED DESCRIPTION

[0018] The utility model is further described below in conjunction with the accompanying drawings and embodiments.

[0019] Figure 1 An architecture diagram of an electronic fence system constructed for the construction site power-assisted vehicle of the utility model; Figure 2 This is a schematic diagram of the structure of a construction site power-assisted vehicle with an electronic fence early warning braking function according to the utility model; Figure 3 It is a structural schematic diagram of the alarm brake module of the construction site power-assisted vehicle of the utility model.

[0020] See also Figure 1 , Figure 2 and Figure 3 The utility model provides a construction site power-assisted vehicle with an electronic fence warning braking function, including a vehicle-mounted UWB base station 63, a braking module 61, an alarm module 62, a power supply and power detection module 64, and a load weighing module 66. Among them, the vehicle-mounted UWB base station 63 can sense and measure the distance with the hole UWB base station 2 installed on the adjacent hole. The coordinates of the vehicle calculated according to the TOF algorithm can be transmitted to the background management equipment of the smart construction site through the 4G / 5G router 7, including the smart construction site BI dashboard 8 and the mobile terminal management device 9.

[0021] A UWB distance measurement base station is installed at the intersection of the diagonal lines of the vertical opening 1 and on the trolley for two-way distance measurement. The alarm module 62 is an audible and visual alarm. At the same time, a small electric push rod circuit is connected to the brake push rod of the transport vehicle. This circuit is connected in parallel with the audible and visual alarm circuit to the vehicle-mounted UWB base station 63, and the vehicle-mounted UWB base station 63 controls the switch of the small electric push rod and the audible and visual alarm. The power supply and power detection module 64 is a removable and rechargeable battery.

[0022] Turn on the power supply of the trolley and the UWB base station power supply 2 at the hole on the fence, and perform two-way distance measurement when there is no error in the power detection module and the load weighing module 66 of the trolley. When it is measured that the construction site power-assisted vehicle enters the orange area 5 (generally a 5-meter radius of the vertical hole), the signal fed back by the on-board UWB base station 63 can control the circuit switch of the sound and light alarm to close, and the sound and light alarm is triggered to remind the driver of the trolley and other on-site personnel to stay away from the hole. At the same time, the base station transmits a 4G / 5G signal to the background of the smart construction site, and the alarm floor can be displayed on the BI signboard 8; when it is measured that the construction site power-assisted vehicle enters the red range area 4 (generally a 2.5-meter radius of the vertical hole), the signal fed back by the on-board UWB base station 63 can control the switch of the small electric push rod circuit to close, and the push rod motor starts, squeezing the piston of the brake master cylinder forward to generate oil pressure, which is transmitted to the brake wheel cylinder. The wheel cylinder piston is squeezed to rotate the brake shoe around the support, and then the friction plate fits with the brake drum to generate a braking torque to achieve the effect of braking the trolley.

[0023] The main components and descriptions of the utility model are as follows:

[0024] 1) UWB ranging base station: UWB (full name: ultra-wideband wireless communication technology) signal is a carrier-free communication signal. It does not use a carrier, but a short energy pulse sequence, and expands the pulse to a frequency range through orthogonal frequency division modulation or direct sequencing. It has many advantages such as strong penetration, low power consumption, good anti-interference effect, high security, large spatial capacity, and accurate positioning. The error in indoor distance measurement can be controlled within 5 to 10 cm.

[0025] The vehicle-mounted UWB base station 62 in the utility model can be bidirectionally linked with the UWB base station 2 installed on the vertical hole 1, and the time interval between sending and receiving signals is recorded by the TOF time of flight method, and the actual measured distance calculated thereby is compared with the set "orange distance" and "red distance", thereby controlling the switch of the sound and light alarm and the small electric push rod circuit. The distance measuring base station is equipped with a 4G / 5G signal module, which can transmit the specific coordinates of the car to the background of the smart construction site in the form of CAN.

[0026] 2) Braking module: This module is a drum brake device equipped with a small electric push rod, including a built-in motor 612 and a push rod 613. The motor 612 drives the push rod 613 and is connected to the drum brake 614. The small electric push rod is a mechanical device that can convert the electrical energy of the motor 612 into kinetic energy of the push rod's linear motion. The built-in motor 612 has a power of 50W and can cause the push rod 613 to produce a large displacement in a short time. The maximum stroke of the push rod 613 is 5cm. The device can increase the length of the brake push rod, thereby achieving the effect of automatic braking.

[0027] 3) Alarm module: This module is an audible and visual alarm. The alarm contains a loudspeaker and an LED alarm light, which is installed on the outside of the front of the car. The maximum sound transmission distance of the loudspeaker can reach 500 meters, and the LED alarm light has a power of 30W and 30 LED lamp beads built in.

[0028] 4) Power detection module: This module can monitor the remaining power of the car in real time. When the power is detected to be less than a set value, the alarm module starts working to remind the driver to remove the portable battery and charge it in time.

[0029] 5) Load weighing module: This module can convert the mass signal into an electrical signal. When it is detected that the actual load exceeds the vehicle load limit, the braking module starts working and the power-assisted vehicle cannot be started.

[0030] Although the present invention has been disclosed as above with preferred embodiments, it is not intended to limit the present invention. Any person skilled in the art may make some modifications and improvements without departing from the spirit and scope of the present invention. Therefore, the scope of protection of the present invention shall be based on the definition of the claims.

Claims

1. A construction site power-assisted vehicle with electronic fence warning braking function, characterized in that: It includes a standing platform and a loading platform. The loading platform is provided with a braking module and an alarm module. The braking module is a drum brake device equipped with a small electric push rod circuit. The alarm module is an audible and visual alarm. The small electric push rod circuit, the audible and visual alarm and the vehicle-mounted UWB base station are electrically connected. The vehicle-mounted UWB base station is connected to the tunnel entrance UWB base station for distance measurement, and the switches of the audible and visual alarm and the small electric push rod circuit are controlled according to the measured distance.

2. The construction site power-assisted vehicle with electronic fence early warning braking function as claimed in claim 1, characterized in that: The braking module, the alarm module, and the vehicle-mounted UWB base station are connected to a power module. The power module is a detachable and rechargeable battery. The power module has a power detection module.

3. The construction site power-assisted vehicle with electronic fence early warning braking function as claimed in claim 1, characterized in that: The small electric push rod circuit includes a built-in motor and a push rod. The built-in motor drives the push rod to be connected to the drum brake. The power of the built-in motor is 50W, and the maximum stroke of the push rod is 5cm.

4. The construction site power-assisted vehicle with electronic fence early warning braking function as claimed in claim 1, characterized in that: The sound and light alarm includes a sound amplification device and an LED alarm light. The maximum sound transmission distance of the sound amplification device can reach 500 meters, and the power of the LED alarm light is 30W.

5. The construction site power-assisted vehicle with electronic fence early warning braking function as claimed in claim 1, characterized in that: The loading platform is also provided with a load weighing module.

6. The construction site power-assisted vehicle with electronic fence early warning braking function as claimed in claim 1, characterized in that: It also includes setting up a communication module to connect the BI dashboard and the mobile management terminal.

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