CN1677414A - Transport vehicle and on-vehicle monitoring system for goods information and monitoring method - Google Patents

Abstract

A vehicle-mounted monitoring system and monitoring method for transport vehicle and cargo information relate to information monitoring of transport vehicles and cargo, positioning of the vehicle and cargo, communication technology between the vehicle and a transportation center, and belong to the field of logistics technology and equipment. It is characterized in that the system contains a main board, a GPRS modem, a bar code scanning device, a GPS receiving device, a storage device, a liquid crystal display screen, a control panel and a touch screen. The method includes an information communication module, a vehicle navigation module, a vehicle position monitoring system terminal module, a cargo input module, a cargo unloading module and a cargo query module. The invention is developed based on a vehicle-mounted platform, and can realize real-time location monitoring and cargo monitoring for drivers, as well as monitoring and scheduling of vehicles by a management center.

Description

Vehicle-mounted monitoring system and monitoring method for transport vehicle and cargo information

technical field

A vehicle-mounted monitoring system and monitoring method for transport vehicle and cargo information relates to information management of transport vehicles and cargo, vehicle and cargo positioning, vehicle and transportation center communication technology, and belongs to the field of logistics technology and equipment.

Background technique

The information management of the transportation system is one of the development hotspots in today's logistics field. One of the keys to the information-based transportation system is the information management of the transportation vehicles. The management center can understand the progress of the transportation and the location of the vehicle in real time, and establish a channel for exchanging dispatching instructions and transportation information between the driver and the management center through the information terminal.

Among the existing technologies, there are technologies related to vehicle position monitoring, such as the invention patent "Integrated Satellite Positioning Vehicle Terminal" (PRC Patent No. 03127643.1, published on February 11, 2004), which uses a central processing unit and a self-developed The PCB board implements the vehicle-mounted terminal platform, uses GPS satellites for vehicle positioning, and uses GSM text messages to realize communication with the monitoring center, realizing real-time position monitoring of vehicles. There is also a vehicle position monitoring system such as VLaTS company abroad (see "Vehicle Positioning and Tracking System (VLaTS) and its characteristics", "Guangdong Communication Technology", Volume 20, No. 12, December 2002). However, these systems do not involve the special functions of the transportation system, such as cargo management and dispatching instructions, and most of the terminal platforms use special platforms, lacking secondary development capabilities.

There are also systems related to transportation information management in the prior art, such as the invention patent "Intelligent Management System for Transportation Information" (PRC Patent No. 01122565.3, published on February 5, 2003). The encryption, collection, sorting, tracking and management of information can realize the function of cargo management. However, this technology is not developed based on the vehicle-mounted platform, and cannot realize real-time cargo management for drivers, nor can it realize the dispatching of vehicles by the management center.

Contents of the invention

The purpose of the present invention is to propose a vehicle-mounted monitoring system and monitoring method for transport vehicles and cargo information. The system and method combine functional modules such as cargo management, information communication, vehicle position monitoring, and vehicle autonomous navigation on a unified vehicle-mounted platform. , providing an efficient, convenient, and feature-rich on-board information management terminal for the transportation system.

The system proposed by the present invention is characterized in that the vehicle-mounted information terminal contains: a main board with a serial port, a VGA interface, a storage device interface, and a PS/2 interface; data processing is performed, and the data is processed with the remote management center on the Internet by GPRS transmission;

GPRS modem, connected to the main board through the serial port, used to dial up to connect to the management center on the Internet;

Barcode scanning equipment, connected to the main board through the serial port, is used to scan the barcode of the goods to obtain the goods number;

The GPS receiving module is connected to the motherboard through the serial port to receive the vehicle location information transmitted by the GPS;

The storage device is connected to the main board through the storage device interface, and is used to save the cargo information database;

The liquid crystal display screen is connected to the VGA interface of the main board through the display driver card, and is used for displaying information;

The control panel is connected to the main board through the PS/2 interface, and is used to input control information and data information;

The touch screen is connected to the main board through the PS/2 interface, and is used for inputting control information.

The method of the present invention is characterized in that it contains:

Information communication module:

Connect to the GPRS network through a GPRS modem dial-up, establish a network connection with the transportation management center server in the Internet network through the GPRS data service, compile and analyze data packets according to the communication protocol, and realize data transmission with the transportation management center server;

Vehicle Navigation Module:

Obtain the vehicle position data from the GPS positioning system through the GPS receiving module, read these data through the serial port and analyze them;

Vehicle position monitoring system terminal module:

Receive the vehicle location information query request from the transportation management center through the GPRS network, receive the location information of the vehicle through the GPS receiving module, and transmit the location information to the transportation management center through the information communication module;

Goods entry module:

1) Establish a network connection with the transportation management center server in the Internet network through the information communication module;

2) Use a barcode scanning device to scan the barcode of the goods to obtain the goods number;

3) Transmit the cargo number to the transportation management center through the information communication module, and receive the detailed information of the cargo transmitted from the transportation management center;

4) Establish an information database of all goods and store them on the storage device;

Cargo unloading module:

1) Establish a network connection with the transportation management center server in the Internet network through the information communication module;

2) Open the cargo information database and delete by scanning the cargo number or manually entering the cargo number;

3) Transmit the information of the unloaded goods to the transportation management center through the above-mentioned information communication module;

Loading query module: open the cargo information database, and search for cargo information according to the cargo number entered or selected by the user.

The communication protocol data packet adopts a string format composed of ASCII code characters, the format is: data packet type | Integer encoding; "packet content" is the transmitted content; "supplement" means the supplement of the communication content.

Experiments have proved that the invention is developed based on the vehicle-mounted platform, which can realize real-time location monitoring and cargo monitoring for drivers, as well as monitoring and dispatching of vehicles by the management center, and achieves the expected purpose.

Description of drawings

Figure 1 is a structural design diagram of the transport vehicle information terminal system;

Figure 2 is a structural design diagram of the hardware platform of the transport vehicle information terminal;

Figure 3 is a flow chart of the goods entry module;

Figure 4 is a flow chart of the cargo unloading module;

Figure 5 is a flow chart of the cargo query module;

Fig. 6 is a block diagram of the information terminal system.

Detailed ways

As shown in Figure 1, the overall structure design of the vehicle information terminal system platform is divided into three layers: embedded hardware platform, including motherboard, control panel, barcode scanning equipment, etc.; embedded operating system platform, including various hardware drivers; application program layer, including cargo management program, vehicle monitoring program, etc. As shown in Figure 1.

The design of the embedded hardware platform adopts the industrial control bus and takes the motherboard as the core. As shown in Figure 2, the system is powered by a vehicle-mounted 12V power supply. The main board is connected to a GPS receiving device, a GPRS communication modem, and a barcode scanning device through a serial port (conforming to the RS-232 standard). The main board can read and write through the serial port, and can obtain GPS from the GPS receiving device. Positioning information can be dialed up to connect to the Internet with the GPRS communication modem, and scan data can be obtained from the barcode scanning device; the main board is connected to the control panel and touch screen through the PS/2 interface, and the input information of the control panel and touch screen can be obtained. The main board can output VGA signal, and the VGA signal can be converted into the signal of the LCD screen and displayed on the screen through a specially developed display driver chip. The motherboard can control the independent speaker to issue voice prompts. The external permanent storage device uses a CF card. The details of some components will be described later.

The upper layer of the hardware platform uses Microsoft's WindowsCE embedded operating system platform. The platform can be divided into two parts, the driver and the system environment. The driver is mainly responsible for the input and output control of each component of the system, while the system environment mainly provides system interface display and interface support for software development, so that applications can run on the platform. run on.

Based on the above system structure, through the software development based on the embedded operating system, various functions required by the transportation vehicle information terminal can be realized. The composition and implementation methods of each functional module are described below.

1. Basic system module. The function of this part is to realize the basic platform of the system and support the operation of other modules. The hardware layer includes the motherboard, CF card (as an external storage device), control panel, LCD screen and touch screen, and the device casing. Among them, the embedded system motherboard adopts PCM-5820/5822 NS Geode SBC, which has a 300MHz processor, 32MB memory, and high performance. The capacity of the CF card is 128MB. In the software layer, it mainly includes the corresponding drivers supporting various hardware functions, as well as the embedded operating system environment.

2. Information communication module. The function of this part is to realize the communication between the terminal system and the outside world, mainly the communication with the transportation management center. The relevant hardware of this module includes the GPRS modem connected with the host computer through the serial port, adopts the products of WAVECOM Company, and the communication chip is WAVECOM-Q2403. The software part mainly includes information communication programs. The realization process is that the GPRS modem is connected to the GPRS network through the dial-up process, and can establish a network connection with the transportation management center server in the Internet network through the GPRS data service. Using this network connection, the information communication module can send transportation information, vehicle location information, driver report information, etc. to the management center, and the management center can send dispatch instructions, location information requests, traffic information, etc. to the information communication module. The sending of information is based on a pre-designed communication protocol. Before sending, the data is compiled according to the protocol, and after receiving the data packet, it is analyzed according to the protocol. These are all completed through the data receiving and sending function in the communication program.

In the communication protocol, the data packet adopts a string format composed of ASCII code characters. The typical format of the string is "data packet type|data packet content|supplement", where the data packet type is used to indicate the function of the data packet. The positive integer code of the character representation; the content part of the data packet is the main part, including the required communication content; the supplementary part is used to supplement the communication content, such as the sign of successful command execution, etc. A typical packet example is as follows:

"3|1, 1, 0, 0, 20031028142933, 1, 116.412563, 39.672543, 80.45, 45, 1|-1"

This data packet is used to send the current position of the vehicle (latitude and longitude), wherein 3 in the type part of the first section indicates that the data packet is the current vehicle location sent by the vehicle-mounted terminal to the management center, and the content of the second section separates each data unit with a comma, including Vehicle terminal number, time, longitude, latitude, speed, angle and other information, the last supplementary part -1 indicates that the data packet is the information returned by the vehicle terminal in response to the query command of the management center.

3. Cargo management module. The function of this part is to enable the driver to grasp the cargo carrying situation of the vehicle at any time. The hardware part of this module mainly includes barcode scanning equipment, which adopts MS9535 of MetroLogic Company, which is a wireless laser barcode scanner, suitable for loading and unloading goods of transport vehicles. The barcode scanning device is connected to the motherboard through the serial port.

The software part mainly includes cargo management program and cargo database. The cargo database is used to store cargo data on the CF card of the vehicle-mounted terminal, which is realized by text files. The management program mainly includes three modules: cargo entry module, cargo unloading module, and cargo query module.

Wherein, the driver uses the cargo input module to input the cargo information when loading the cargo. The implementation flow of the module function is shown in Figure 3. When the driver is loading the cargo, he firstly scans the barcode to realize the identification of the cargo number, and the cargo input module automatically sends the cargo number to the management center through the communication module to request the specific information of the cargo. The management center returns the terminal after obtaining the information from the database, and the cargo input After the module obtains the cargo information through the communication module, it records it in the cargo database.

Correspondingly, the cargo unloading module is used after the driver finishes unloading the cargo to delete the cargo information from the database. The implementation flow of the module function is shown in Figure 4. After the driver finishes unloading, he can use the unloading module. The program gets a list of all the goods from the cargo database for the driver to choose the unloaded goods. The driver can scan the barcode again or directly select two methods from the touch screen. After confirmation, the program deletes the cargo information in the database, and at the same time the unloading completion information is sent to the management center through the communication module.

The driver can use the cargo query module to query the current cargo information of the vehicle during transportation. The implementation process of this module is shown in Figure 5. After the driver enters the query module, the program first takes out all the records of the goods from the database, including the main information of the goods, and displays them to the driver in the form of a list; the driver can select one of the goods to view the detailed information. With the combination of the cargo query function and the cargo information, the driver can also carry out the cargo damage difference, that is, the operation of recording the damage and loss of the cargo.

4. Vehicle navigation module. This module provides the driver with the function of electronic map navigation. The hardware part of the module mainly includes a GPS receiving module, which is connected to the main board through a serial port, and the software part is a vehicle navigation program. GPS obtains vehicle location data from the GPS positioning system at regular intervals, and the program reads and analyzes these data through serial port reading and writing. The navigation program uses this as a basis for electronic map positioning and vehicle guidance.

5. The terminal module of the vehicle position monitoring system. The main function of the system is to provide terminal support for the management center to obtain and display the current position of the vehicle. Therefore, as a part of the vehicle position monitoring system, this module needs to cooperate with other parts to complete the function. In the terminal part, the positioning data also comes from the GPS receiving module. When the information communication module receives the location request command from the management center, it will send the current positioning data to the management center. Therefore, the function of this module is supported by two parts, the vehicle navigation module and the information communication module.

Accompanying drawing 6 has shown the composition of the system and the connection of each part. The basic system module provides system support for each module. Each module obtains and sends data through external data devices, including barcode scanning equipment, GPRS modem, and GPS receiving module. Each module obtains and sends data through program variables (ie system memory) and external storage files (CF card storage) for data exchange and sharing to achieve their respective functions.

Claims (7)

1, the vehicle-mounted monitoring system of a kind of haulage vehicle and goods information is characterized in that, contains on board information terminal: mainboard has serial ports, VGA interface, storage device interface, PS/2 interface; Carry out data processing, and carry out data transmission by GPRS with the online telemanagement center of Internet; The GPRS modulator-demodular unit is connected with mainboard by serial ports, is used for the online administrative center of dial-up connection Internet; Bar code scan equipment is connected with mainboard by serial ports, is used to scan the bar code of goods, thereby obtains goods number; The GPS receiver module is connected with mainboard by serial ports, receives the vehicle position information of GPS transmission; Memory device is connected with mainboard by storage device interface, is used to preserve the goods information database; LCDs is connected with the VGA interface of mainboard by the display driver card, is used for display message; Control panel is connected with mainboard by the PS/2 interface, is used for input control information and data message; Touch-screen is connected with mainboard by the PS/2 interface, is used for input control information.

2, the vehicle-mounted monitoring system of haulage vehicle as claimed in claim 1 and goods information is characterized in that, the model of described mainboard is PCM-5820/5822 NS Geode SBC.

3, the vehicle-mounted monitoring system of haulage vehicle as claimed in claim 1 and goods information is characterized in that, it is the GPRS modulator-demodular unit of WAVECOM-Q2403 that described GPRS modulator-demodular unit adopts the communication chip of WAVECOM company.

4, the vehicle-mounted monitoring system of haulage vehicle as claimed in claim 1 and goods information is characterized in that, the GPS25LP series of the employing GARMIN company of described GPS receiving trap.

5, the vehicle-mounted monitoring system of haulage vehicle as claimed in claim 1 and goods information is characterized in that, the model of described bar code scan equipment is the MS9535 of MetroLogic company.

6, the vehicle-mounted monitoring method of a kind of haulage vehicle and goods information is characterized in that, contains:

The information communication module:

Be connected into GPRS network by the GPRS modem dialup, setting up network by the GPRS data, services with the transportation management central server in being in the Internet network is connected, according to communications protocol establishment and parsing packet, realize data transmission with the transportation management central server;

The automobile navigation module:

Obtain vehicle position data by the GPS receiver module from the GPS positioning system, read these data by serial ports and also resolve;

The vehicle position monitoring system terminal module:

Receive the vehicle position information query requests that send at the transportation management center by GPRS network, receive the positional information of this car, and this positional information is transferred to the transportation management center by the information communication module by the GPS receiver module; Goods typing module:

1) setting up network by the information communication module with the transportation management central server in being in the Internet network is connected;

2), obtain goods number with the bar code of bar code scan device scan goods;

3) by the information communication module goods number is transferred to the transportation management center, and receives the details of this goods that transmits from the transportation management center;

4) set up the information database of all goods, be stored on the memory device;

The goods Unload module:

1) setting up network by the information communication module with the transportation management central server in being in the Internet network is connected;

2) open the goods information database, number delete by scanning goods number or by manual input goods;

3) by above-mentioned information communication module with the information transmission of unloaded of cargo to the transportation management center;

Loading enquiry module: open the goods information database, number search goods information according to user input or the goods selected.

7, the vehicle-mounted monitoring method of a kind of haulage vehicle as claimed in claim 6 and goods information, it is characterized in that, described communications protocol packet adopts the string format that is made of the ASCII character character, this form is: type of data packet | packet content | replenish, wherein " type of data packet " represents the effect of this packet, adopts the positive integer coding that is characterized by character; " packet content " is the content of being transmitted; " replenish " replenishing of expression Content of communciation.

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