Engineering construction waste loading and unloading point associated standard transportation intelligent management system

Abstract

The utility model discloses an engineering construction waste loading and unloading point association standard transportation intelligent management system. The system comprises a single-chip microcomputer MCU, a power supply module, a positioning module, a cargo loading and unloading state switch module and a vehicle-mounted cargo pressure sensor module. The positioning module is connected with the single-chip microcomputer MCU and used for transmitting vehicle positioning data to the single-chip microcomputer MCU. The cargo loading and unloading state switch module is connected with the single-chip microcomputer MCU and used for transmitting an obtained loading starting signal, an obtained loading ending signal, an obtained unloading starting signal and an obtained unloading ending signal to the single-chip microcomputer MCU. The vehicle-mounted cargo pressure sensor module is connected with the single-chip microcomputer MCU and used for transmitting the mass of the vehicle-mounted engineering construction waste to the single-chip microcomputer MCU. The power supply module is connected with the single-chip microcomputer MCU, the positioning module, the cargo loading and unloading state switch module and the vehicle-mounted cargo pressure sensor module.

Description

Technical Field

[0001] The utility model belongs to the technical field of Internet of Things, and specifically relates to an intelligent management system for the accurate transportation of engineering construction waste loading and unloading points. Background Art

[0002] To effectively prevent illegal dumping of garbage and illegal transportation by construction vehicles, it is necessary to adopt effective technical means to monitor and manage the operation trajectory of garbage transportation vehicles, the location of construction waste loading and unloading points, and the loading and unloading behavior of vehicle cargo.

[0003] At present, the technical means used in the market to monitor or restrict the illegal dumping of construction waste include the use of virtual electronic fences and visual perception technology, which can identify whether a vehicle can enter the construction site (loading and unloading point) through GPS and virtual electronic maps. At the same time, the camera installed at the gate of the construction site (loading and unloading point) collects photos of vehicles entering and leaving the construction site, and uploads relevant monitoring information or alarm information to the management platform. The specific process is as follows: Figure 1 However, the use of virtual electronic fence technology and vehicle-mounted camera visual monitoring technology to monitor or restrict illegal dumping of construction waste has the following shortcomings:

[0004] (1) If only virtual electronic fence technology is used, although the location of the vehicle and its running trajectory can be accurately located and monitored, it is impossible to monitor the changes in the status of the cargo (such as garbage) on the vehicle, and it is also impossible to effectively judge whether there is illegal dumping of garbage at the garbage loading point (source point) and unloading point (end point) or during the vehicle's driving. The monitoring technology has a large blind spot;

[0005] (2) If the virtual electronic fence technology and vehicle-mounted camera visual monitoring technology are combined, the hardware investment and system development and maintenance costs will be greatly increased. In addition, since it is necessary to track the entire process of vehicle loading and unloading garbage, a huge amount of pictures or videos must be collected, which will lead to high system power consumption and easily cause the vehicle power supply to run out of power. In addition, the algorithm learning and training volume is large, and the communication transmission traffic accounts for a large proportion. Utility Model Content

[0006] Purpose of the utility model: To solve the problem that the existing monitoring technology is unable to monitor the changes in the state of vehicle-borne garbage, and is unable to effectively supervise the garbage loading and unloading points and whether there is illegal dumping of garbage during the driving process of the vehicle, the utility model proposes an intelligent management system for the associated transportation of construction waste loading and unloading points, which realizes real-time detection of vehicle-borne construction waste loading and unloading points (positions) and changes in the state of vehicle-borne garbage through the Internet of Things and pressure sensors.

[0007] Technical solution: An intelligent management system for the accurate transportation of construction waste loading and unloading points, including: a single-chip microcomputer MCU, a power module, a positioning module, a cargo loading and unloading status switch module, and a vehicle-mounted cargo pressure sensor module;

[0008] The positioning module is used to obtain the positioning data of the vehicle. The positioning module is connected to the single-chip microcomputer MCU and is used to continuously transmit the vehicle positioning data to the single-chip microcomputer MCU;

[0009] The cargo loading and unloading status switch module is fixed on the loading and unloading equipment, and is used to generate a start signal and an end signal according to the state of the loading and unloading equipment. The cargo loading and unloading status switch module is connected to the single-chip microcomputer MCU, and is used to transmit the acquired start signal and end signal to the single-chip microcomputer MCU;

[0010] The on-board cargo pressure sensor module is used to continuously measure the mass of the on-board engineering construction waste. The on-board cargo pressure sensor module is connected to the single-chip microcomputer MCU and is used to continuously transmit the mass of the on-board engineering construction waste to the single-chip microcomputer MCU;

[0011] The power module is connected to the single-chip microcomputer MCU, the positioning module, the cargo loading and unloading status switch module and the vehicle-mounted cargo pressure sensor module, and is used to supply power to the single-chip microcomputer MCU, the positioning module, the cargo loading and unloading status switch module and the vehicle-mounted cargo pressure sensor module;

[0012] The single-chip microcomputer MCU is used to receive the positioning data of the vehicle, and to receive the mass of the engineering construction waste on the vehicle, and compare it with a preset mass threshold.

[0013] Furthermore, the loading and unloading equipment includes a truck bed for loading cargo, and the cargo loading and unloading status switch module is fixed on the door of the truck bed. When the door of the loading and unloading equipment is opened, a start signal is generated, and when the door of the loading and unloading equipment is closed, an end signal is generated.

[0014] Furthermore, the positioning module is a GPS module or a BD module.

[0015] Furthermore, the cargo loading and unloading status switch module is a switch type Hall sensor.

[0016] Furthermore, the vehicle cargo pressure sensor module is one of a piezoresistive pressure sensor, a diffused silicon pressure sensor, an electrostatic capacitance pressure sensor or a piezoelectric pressure sensor.

[0017] Furthermore, it also includes a communication module, which is connected to the single-chip microcomputer MCU, and the single-chip microcomputer MCU is connected to the cloud platform through the communication module.

[0018] Furthermore, an electronic fence is deployed on the cloud platform, and the single-chip microcomputer MCU uploads the vehicle's positioning data to the cloud platform through a communication module.

[0019] Furthermore, the communication module is a 4G communication module or a 5G communication module.

[0020] Beneficial effects: Compared with the prior art, the utility model has the following advantages:

[0021] (1) The utility model realizes the real-time monitoring and management of the running track of garbage transport vehicles, the location of loading and unloading points, and the weight change of garbage without blind spots through GPS positioning, electronic fences, dynamic vehicle load monitoring, and the capture of changes in the loading and unloading status of on-board cargo, effectively reducing the illegal transportation of garbage and providing a solid scientific and technological guarantee for the implementation of the management of the associated transportation of on-board construction waste loading and unloading points;

[0022] (2) The cost of the system proposed by the utility model is much lower than the cost of using virtual electronic fence and visual perception technology. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 A schematic diagram of the technical means currently available on the market for monitoring or restricting illegal dumping of construction waste;

[0024] Figure 2 A physical diagram of an intelligent management system for accurate transportation of construction waste loading and unloading points according to the utility model;

[0025] Figure 3 This is a principle block diagram of an intelligent management system for the accurate transportation of construction waste loading and unloading points in the utility model;

[0026] Figure 4 It is a schematic diagram of GPS chip and its peripheral circuits;

[0027] Figure 5 It is a schematic diagram of the analog-to-digital conversion ADC chip and its peripheral circuits;

[0028] Figure 6 This is the schematic diagram of the UART to 485 circuit;

[0029] Figure 7 This is a schematic diagram of the Cat1 chip and its peripheral circuits. DETAILED DESCRIPTION

[0030] The technical solution of the utility model is now further described in conjunction with the accompanying drawings and embodiments.

[0031] like Figure 2 and Figure 3As shown, this embodiment discloses an intelligent management system for the accurate transportation of construction waste loading and unloading points, which is arranged on a vehicle and mainly includes: a data acquisition and processing module, a BD / GPS module, a 4G communication module, a vehicle-mounted cargo loading and unloading status switch module and a vehicle-mounted cargo pressure sensor module.

[0032] The data acquisition and processing module is mainly composed of a power module, a single-chip microcomputer MCU, an internal clock and an analog-to-digital conversion ADC chip, a SPI / RS485 / 232 serial port, etc. The analog-to-digital conversion ADC chip is an existing chip, and its circuit diagram is as follows: Figure 5 As shown in the figure, the GPS module is an existing module, which is mainly composed of a GPS chip, an RF antenna, etc. The GPS chip and its peripheral circuits are shown in the figure. Figure 4 As shown; the 4G communication module is an existing module, which is mainly composed of 4G / Cat1 chip, 485 / CAN communication, 4G antenna and other parts. The Cat1 chip and its peripheral circuits are shown in Figure 7 As shown; wherein, the vehicle-mounted cargo loading and unloading status switch module is mainly composed of a switch-type Hall sensor and its peripheral circuits, which include but are not limited to signal conditioning circuits, data acquisition circuits, etc.; wherein, the vehicle-mounted cargo pressure sensor module is mainly composed of a vehicle-mounted pressure sensor and its peripheral circuits, which include but are not limited to signal conditioning circuits, data acquisition circuits, etc.

[0033] The connection relationship between the modules in this embodiment is as follows: the single-chip microcomputer MCU receives the vehicle positioning data from the GPS module through the URAT communication protocol; the single-chip microcomputer MCU uses the URAT communication protocol, the 485 protocol conversion module, and the 485 communication protocol to transmit data with the switch-type Hall sensor, and the switch-type Hall sensor is related to the cargo loading and unloading status; the single-chip microcomputer MCU transmits data with the analog-to-digital conversion ADC chip through the SPI communication protocol, and the analog-to-digital conversion ADC chip is connected to the vehicle-mounted pressure sensor using an analog signal interface, that is, the pressure signal obtained by the vehicle-mounted pressure sensor is converted and transmitted to the single-chip microcomputer MCU, and the pressure signal obtained by the vehicle-mounted pressure sensor is related to the weight of the cargo on the vehicle; the single-chip microcomputer MCU transmits data with the 4G communication module through the URAT communication protocol, and realizes data transmission with the cloud platform through the 4G communication module. Among them, in addition to receiving vehicle positioning data from the GPS module, data from the switch-type Hall sensor, and data from the on-board pressure sensor, the single-chip microcomputer MCU also determines the cargo loading and unloading status based on the data from the switch-type Hall sensor, and compares the data from the on-board pressure sensor with the set threshold. When the data from the on-board pressure sensor is lower than the set threshold and the current vehicle positioning data is not at the unloading point, it is determined that there is suspected illegal dumping of garbage, and a suspected illegal dumping alarm is generated, which is uploaded to the cloud platform using the 4G communication module and sent to the target vehicle by the cloud platform.

[0034] The cloud platform of this embodiment is built with a preset virtual electronic fence. The virtual electronic fence is a locator based on technologies such as GPS and GPRS, which uses a virtual electronic boundary to limit or monitor the location and running trajectory of construction waste transportation vehicles in the target area. At the same time, functions such as real-time tracking, real-time monitoring, path recording, and historical playback can also be realized. In this embodiment, the single-chip microcomputer MCU uses a 4G communication module to upload the license plate number, management system number, and vehicle positioning data to the cloud platform. In the cloud platform, the license plate number, management system number, and vehicle positioning data are compared with the preset virtual electronic fence to determine whether the current target vehicle is within the preset virtual electronic fence. On the cloud platform, an electronic map is used to realize the visual management of the electronic fence, including operations such as establishment, management, modification, and query.

[0035] The switch type Hall sensor, GPS module, analog-to-digital conversion ADC chip and vehicle pressure sensor used in this embodiment are all existing technologies. The working principle of the vehicle pressure sensor is to convert the sensed pressure signal into a usable electrical signal. The following are several common working principles of pressure sensors:

[0036] Piezoresistive pressure sensor: uses a resistance strain gauge. When pressure acts on the sensor, the strain gauge changes its resistance as the mechanical deformation occurs, thereby detecting pressure changes.

[0037] Diffused silicon pressure sensor: Utilizing the piezoresistive effect, when the pressure of the measured medium acts on the diaphragm of the sensor, a micro-displacement will occur, causing the resistance value to change, which is then converted into an electrical signal.

[0038] Electrostatic capacitance type pressure sensor: Based on the change of capacitance, when pressure acts on the sensor, the capacitance of the capacitor changes, thereby detecting the change in pressure.

[0039] Piezoelectric pressure sensor: Utilizing the piezoelectric effect, when pressure acts on a piezoelectric material (such as quartz, diammonium phosphate, etc.), the material will generate charges, which are converted into electrical signals proportional to the pressure through a charge amplifier and a measurement circuit.

[0040] Any of the above pressure sensors is usually composed of a pressure sensitive element and a signal processing unit, among which the sensitive element is the core component of the pressure sensor, which directly determines the performance of the sensor. Commonly used sensitive elements include capacitive sensitive elements, strain sensitive elements, magnetic sensitive elements, etc. Among them, the strain sensitive element is the most commonly used and common sensitive element. Its working principle is to use the deformation of the object and the strain of the crystal under the action of external force to cause the change of physical quantity, and finally convert it into an electrical signal output. The signal of the pressure sensor is generally a small resistance change signal, which needs to be amplified, filtered, linearized and other processes to be effectively transmitted and processed.

[0041] When the intelligent management system for the transportation of construction waste loading and unloading points (hereinafter referred to as the management system) proposed in this embodiment is put into practical use, its workflow includes:

[0042] The management system is installed on the target vehicle, wherein the cargo loading and unloading status switch module is fixed on the door of the truck bed for loading cargo. When the door is opened, a start signal is generated, and when the door is closed, an end signal is generated. Combined with the vehicle's positioning data, the start signal can be divided into a loading start signal and an unloading start signal, and the end signal can be divided into a loading end signal and an unloading end signal.

[0043] At the garbage loading point, the door of the truck bed is opened, the loading start signal is triggered, and the management system automatically uploads the target license plate number, management system number, and target vehicle positioning data to the cloud platform, which compares it with the preset virtual electronic fence. If the comparison is correct, it is determined that loading is allowed at this time, and the visual screen can be used to display the "green mark prompt for loading allowed", and the loading point confirmation information is uploaded to the cloud platform. At the same time, the vehicle-mounted pressure sensor is used to measure the weight of the garbage on the vehicle until the door of the truck bed is closed and the unloading start signal is triggered. The weight measurement is completed and the total weight data of the garbage on the vehicle is uploaded to the cloud platform; if the comparison is incorrect, it is determined that loading is not allowed at this time, and the visual screen is used to display the "red mark prompt for prohibited loading" and upload the alarm information to the cloud platform, which will prohibit the target vehicle from loading construction waste at this loading point;

[0044] At the garbage unloading point, the door of the truck bed is opened, the unloading start signal is triggered, and the management system automatically compares the target license plate number, management system number, target vehicle positioning data with the preset virtual electronic fence. If the comparison is correct, it is determined that unloading is allowed at this time, and the visual screen can be used to display the "green mark prompt for unloading allowed" and upload the unloading point confirmation information to the cloud platform. At the same time, the vehicle-mounted pressure sensor is used to measure the weight of the garbage on the vehicle until the door of the truck bed is closed and the unloading end signal is triggered. The weight measurement is completed and the total weight data of the garbage on the vehicle is uploaded to the cloud platform; if the comparison is incorrect, the visual screen will be used to display the "red mark prompt for unloading prohibited" and upload the alarm information to the cloud platform, which will prohibit the target vehicle from unloading construction waste at this location;

[0045] During vehicle transportation, when the weight of the garbage on board is lower than the set threshold and combined with the target vehicle positioning and operation trajectory information, the "suspected illegal dumping of garbage" alarm signal is immediately activated to the cloud platform.

[0046] This embodiment introduces a "cargo loading and unloading status judgment switch function module" and a "vehicle-mounted weighing function module" to replace the "image processing unit module", which can not only effectively reduce the hardware cost of the device and the overall power consumption of the system and improve the system stability, but also through the "vehicle-mounted cargo weight change monitoring and vehicle GPS positioning, electronic fence" technology, the operation trajectory of garbage transportation vehicles, the location of construction waste loading and unloading points, and the loading and unloading behavior of on-board cargo can be monitored in real time and in all directions, effectively solving the limitation of relying on the "electronic fence + visual perception" technology in the past to supervise and manage the illegal dumping of garbage during transportation or outside the fence.

Claims

1. An intelligent management system for the transportation of construction waste loading and unloading points, characterized by: include: MCU, power module, positioning module, cargo loading and unloading status switch module, and vehicle-mounted cargo pressure sensor module; The positioning module is used to obtain the positioning data of the vehicle. The positioning module is connected to the single-chip microcomputer MCU and is used to continuously transmit the vehicle positioning data to the single-chip microcomputer MCU; The cargo loading and unloading status switch module is fixed on the loading and unloading equipment, and is used to generate a start signal and an end signal according to the state of the loading and unloading equipment. The cargo loading and unloading status switch module is connected to the single-chip microcomputer MCU, and is used to transmit the acquired start signal and end signal to the single-chip microcomputer MCU; The on-board cargo pressure sensor module is used to continuously measure the mass of the on-board engineering construction waste. The on-board cargo pressure sensor module is connected to the single-chip microcomputer MCU and is used to continuously transmit the mass of the on-board engineering construction waste to the single-chip microcomputer MCU; The power module is connected to the single-chip microcomputer MCU, the positioning module, the cargo loading and unloading status switch module and the vehicle-mounted cargo pressure sensor module, and is used to supply power to the single-chip microcomputer MCU, the positioning module, the cargo loading and unloading status switch module and the vehicle-mounted cargo pressure sensor module; The single-chip microcomputer MCU is used to receive the positioning data of the vehicle, and to receive the mass of the engineering construction waste on the vehicle, and compare it with a preset mass threshold.

2. According to claim 1, the intelligent management system for the transportation of construction waste loading and unloading points is characterized by: The loading and unloading equipment includes a bucket for loading cargo, and the cargo loading and unloading status switch module is fixed on the door of the bucket. When the door of the loading and unloading equipment is opened, a start signal is generated, and when the door of the loading and unloading equipment is closed, an end signal is generated.

3. According to claim 1, the intelligent management system for the transportation of construction waste loading and unloading points is characterized by: The positioning module is a GPS module or a BD module.

4. According to claim 1, the intelligent management system for the transportation of construction waste loading and unloading points is characterized by: The cargo loading and unloading status switch module is a switch type Hall sensor.

5. According to claim 1, the intelligent management system for the transportation of construction waste loading and unloading points is characterized by: The vehicle cargo pressure sensor module is one of a piezoresistive pressure sensor, a diffused silicon pressure sensor, an electrostatic capacity pressure sensor or a piezoelectric pressure sensor.

6. According to claim 1, the intelligent management system for the transportation of construction waste loading and unloading points is characterized by: It also includes a communication module, which is connected to the single-chip microcomputer MCU, and the single-chip microcomputer MCU is connected to the cloud platform through the communication module.

7. The intelligent management system for the transportation of construction waste loading and unloading points according to claim 6 is characterized by: An electronic fence is deployed on the cloud platform, and the single-chip microcomputer MCU uploads the vehicle's positioning data to the cloud platform through a communication module.

8. The intelligent management system for the transportation of construction waste loading and unloading points according to claim 6 is characterized by: The communication module is a 4G communication module or a 5G communication module.

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