CN202159367U - Trailer identity automatic recognition device of drop-and-pull transport vehicle - Google Patents

Abstract

The utility model relates to a trailer identity automatic recognition device of a drop-and-pull transport vehicle, which belongs to the field of vehicle safety monitoring and is characterized by comprising a vehicle-mounted terminal arranged on a tractor and an electronic label arranged on a trailer. The vehicle-mounted terminal comprises a global positioning module, a wireless communication module, an electronic label reading module, a standard deviation (SD) card storage module and a central processing unit including a microcontroller. The central processing unit controls the global positioning module, the wireless communication module, the electronic label reading module, and the SD card storage module. The electronic label comprises a power supply generating circuit, a detection circuit, an amplitude shift keying (ASK) reverse diffusing circuit, a resistance-capacitance (RC) low-pass filter circuit, an inductor-capacitor (LC) low-pass filter circuit and a processing module. The trailer identity automatic recognition device can automatically read identity information of the trailer during a vehicle transport process and uploads the information to a remote monitoring centre.

Description

An automatic identification device for the trailer of a drop-and-hook transport vehicle

technical field

The utility model belongs to the field of vehicle safety monitoring, and in particular relates to a dynamic monitoring technology of a drop-and-hook transport vehicle. The utility model discloses an automatic identification device for a trailer of a drop-and-hook transport vehicle.

Background technique

Drop-and-pull transport refers to the transportation organization method in which the vehicle tractor drops the trailer at the cargo loading and unloading operation point according to the predetermined operation plan, and replaces it with other trailers to continue operation. The combination of tractor and trailer is not restricted by different regions, enterprises and license plates. Compared with traditional transportation methods, drop-and-pull transportation has obvious advantages: first, it reduces the waiting time for loading and unloading, speeds up the turnover of tractors, improves transportation efficiency and labor productivity; second, reduces empty driving and ineffective transportation of vehicles, and reduces energy consumption and exhaust emissions; It saves cargo storage facilities, facilitates cargo owners, and reduces costs by 50% to 60%; fourthly, it facilitates the organization of multimodal transportation such as waterway roll-on-roller transportation and railway humpback transportation, and promotes the development of comprehensive transportation. Drop-and-hook transportation has become a new pursuit of transportation methods. The development of automobile drop-and-hook transportation is of great significance for reducing logistics costs, promoting the development of modern logistics and comprehensive transportation, promoting energy saving and emission reduction, and improving the overall quality of economic operation.

At the same time, in recent years, relevant state departments have attached great importance to the remote safety supervision of road transport vehicles, and have successively issued documents requiring road transport vehicles, especially dangerous goods transport vehicles, to install satellite positioning systems and implement intelligent management. On July 23, 2010, the General Office of the State Council issued the "Notice of the State Council on Further Strengthening Enterprise Safety Production Work" (Guo Fa [2010] No. 23), and the third article of the notice "Building a Solid Technical Support System" clearly stated that transportation hazards Special road vehicles for chemicals, fireworks and firecrackers, civil explosives, tourist chartered vehicles and line buses of three or more categories must be equipped with satellite positioning devices with driving recording functions, and all of them will be completed within two years.

In the current remote supervision system for operating vehicles, the on-board monitoring terminal is installed in the cab. In the drop-and-pull transportation mode, it does not have the function of identifying the characteristics of the trailer and its identity. The means of tractor and trailer) cannot meet the requirements of monitoring, scheduling and management of the drop-and-pull transportation mode.

Contents of the invention

In view of the above problems, the purpose of this utility model is to provide a trailer identity automatic identification device that can dynamically monitor the drop-and-hook transport vehicle, which can collect and process the speed, position, trailer identity and characteristic information of the drop-and-hook transport vehicle , and uploaded to the remote monitoring center, so as to realize the comprehensive supervision of the drop-and-hook transport vehicles in transit.

In order to achieve the above purpose, the utility model adopts the following technical solutions: an automatic identification device for the trailer of a drop-and-hook transport vehicle, which is characterized in that it includes two parts: a vehicle-mounted terminal installed on the tractor and an electronic tag installed on the trailer, The vehicle-mounted terminal includes a global positioning module, a wireless communication module, an electronic tag reading module, an SD card storage module and a central processing unit that controls them and contains a microprocessor; the electronic tag includes a power generation circuit, a detection circuit, an ASK Backscattering circuit, RC low-pass filter circuit, LC low-pass filter circuit, processor module, the power generation circuit receives the energy emitted by the electronic tag reading module, the detection circuit converts the radio frequency energy into a DC power supply, activates The internal circuit of the tag, the RC low-pass filter circuit and the LC low-pass filter circuit adjust the commands and data sent by the electronic tag reading module, and send them to the processor module, and the processor module passes the ASK backscatter according to the received instructions The circuit sends its own data to the electronic tag reading module.

The electronic tag is a 915M passive anti-metal electronic tag.

The electronic tag is installed at the front of the trailer, and the electronic tag reading module of the vehicle terminal is installed at the rear of the tractor, facing the electronic tag.

Due to the adoption of the above technical scheme, the utility model has the following technical effects: the device includes a vehicle-mounted terminal installed on the tractor and an electronic tag installed on the trailer. The vehicle-mounted terminal includes a global positioning module, a wireless communication module, an electronic tag reading module, an SD card storage module and a central processor unit that controls them. The global positioning module reports the position information of the vehicle, and the central processing unit sends reading information to the electronic tag reading module at regular intervals. Instructions, the reading module reads the trailer identity data in the trailer electronic tag and sends it back to the central processor unit, and the central processor unit sends the trailer identity information to the remote monitoring center through the wireless communication module, thus realizing the identification of the trailer identity of the drop-and-hook transport vehicle Automatic identification of information. The electronic tag includes a power generation circuit, a detection circuit, an ASK backscatter circuit, an RC low-pass filter circuit, an LC low-pass filter circuit, and a processor module. Passive electronic tags rely on the antenna of the power generation circuit to receive the energy emitted by the reader. When the tag is within the range of the electromagnetic field of the reader, through the spatial coupling of the electromagnetic field, the tag obtains energy from the electromagnetic field, and the radio frequency is rectified by the detection circuit. The energy is converted to DC power to activate the tag's internal circuitry. The commands and data sent by the reader are adjusted through the RC low-pass filter circuit and the LC low-pass filter circuit, and sent to the processor module. The processor module sends its own data to the reader through the ASK backscatter circuit according to the received instructions. . This device can automatically read the identity information of the trailer during vehicle transportation through the cooperation of the vehicle-mounted terminal and the electronic tag on the trailer, and upload it to the remote monitoring center. To achieve the purpose of remote monitoring vehicle information.

Description of drawings

Fig. 1 is a system block diagram of a vehicle-mounted terminal installed on a tractor;

Figure 2 is a system block diagram of the electronic tag installed on the trailer.

Detailed ways

Below in conjunction with accompanying drawing and embodiment the utility model is described further.

The utility model is a short-distance radio frequency technology (RFID)-based identification device for drop-and-hook transport vehicles. The device mainly includes two parts: a vehicle-mounted terminal installed on a tractor and an electronic label installed on a trailer.

As shown in Figure 1, the vehicle-mounted terminal installed on the tractor includes a global positioning (GPS) module 1, a wireless communication (GPRS) module 2, an electronic tag reading module 3, an SD card storage module 4 and a microprocessor that controls them The central processing unit 5.

During the operation of the drop-and-pull transport vehicle, the global positioning module 1 reports the position information of the vehicle, and the central processing unit 5 regularly sends reading instructions to the electronic tag reading module 3, and the reading module reads the trailer identity data in the trailer electronic tag and sends it back to The central processor unit 5 sends the identity information of the trailer to the remote monitoring center through the wireless communication module 2, thereby realizing automatic identification of the identity information of the trailer of the drop-and-hook transport vehicle. The SD card storage module 4 is used to store the identity information of the vehicle.

The characteristic of drop-and-hook transportation is that the tractor drops the trailer at the freight station and replaces it with other trailers to continue running. Therefore, an electronic tag is installed on the front of the trailer, and the identity information of the trailer is stored in the tag; The terminal has an electronic tag reading module 3, and the module is installed at the rear of the tractor, facing the electronic tag on the trailer.

As shown in Figure 2, the electronic tag installed on the trailer is a 915M passive anti-metal electronic tag, which is used to store the identity information of the trailer. The electronic tag includes a power generation circuit 10 , a detection circuit 20 , an ASK backscatter circuit 30 , an RC low-pass filter circuit 40 , an LC low-pass filter circuit 50 , and a processor module 60 . Its working principle is: the passive electronic tag relies on the antenna of the power supply generating circuit 10 to receive the energy emitted by the electronic tag reading module 3, and when the tag is within the electromagnetic field range of the electronic tag reading module, it obtains energy from the electromagnetic field through the spatial coupling of the electromagnetic field , the radio frequency energy is converted into a DC power supply by means of rectification through the detection circuit 20, so as to activate the internal circuit of the tag. The commands and data sent by the electronic tag reading module are adjusted through the RC low-pass filter circuit 40 and the LC low-pass filter circuit 50, and sent to the processor module 60, and the processor module 60 passes through the ASK backscatter circuit 30 according to the received instructions. Send its own data to the electronic tag reading module.

The inventors have shown through laboratory and real vehicle tests that the device can automatically read the identity information of the trailer during vehicle transportation, so as to achieve the purpose of comprehensive monitoring of the tractor and trailer.

The above-mentioned embodiments are only used to illustrate the utility model, wherein the structure, connection mode and manufacturing process of each component can be changed to some extent, and all equivalent transformations and improvements carried out on the basis of the technical solution of the utility model are applicable. It should not be excluded from the protection scope of the present utility model.

Claims (3)

1. An automatic identity identification device for a drop-and-pull transport vehicle trailer, characterized in that: it includes two parts: a vehicle-mounted terminal installed on the tractor and an electronic tag installed on the trailer, and the vehicle-mounted terminal includes a global positioning module and a wireless communication module , an electronic label reading module, an SD card storage module and a central processing unit containing a microprocessor controlling them; The electronic tag includes a power generation circuit, a detection circuit, an ASK backscatter circuit, an RC low-pass filter circuit, an LC low-pass filter circuit, and a processor module, and the power generation circuit receives the energy emitted by the electronic tag reading module , the detection circuit converts the radio frequency energy into a DC power supply, activates the internal circuit of the label, and the RC low-pass filter circuit and the LC low-pass filter circuit adjust the commands and data sent by the electronic label reading module and send them to the processor module , the processor module sends its own data to the electronic tag reading module through the ASK backscatter circuit according to the received instruction. 2. An automatic identity identification device for a trailer of a drop-and-pull transport vehicle as claimed in claim 1, wherein the electronic tag is a 915M passive anti-metal electronic tag. 3. An automatic identity identification device for a trailer of a drop-and-pull transport vehicle according to claim 1 or 2, wherein the electronic tag is installed on the front of the trailer, and the electronic tag reading module of the vehicle-mounted terminal is installed on the tractor At the rear, facing the electronic label.

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