CN101650785B - Dangerous- article physical-distribution intelligent supervision method based on radio frequency identification - Google Patents

Abstract

The invention relates to a radio frequency identification-based intelligent supervision method for dangerous goods logistics in the technical field of logistics monitoring. The present invention installs a dangerous goods packing box state monitoring system in the dangerous goods packing box, collects the physical state of the dangerous goods in real time and writes it into the RFID tag outside the container; Read and write RFID tag information in real time during the process, and dynamically exchange dangerous goods logistics information, status information, safety information, and vehicle driving status information with the dangerous goods logistics integrated supervision platform; use the dangerous goods logistics integrated supervision platform to realize centralized supervision of the logistics process It also provides real-time query for remote users, forming multi-level real-time monitoring, synchronous and timely alarm, automatic fault handling, and unified logical distribution of dangerous goods logistics intelligent monitoring, which fully realizes the distribution of dangerous goods logistics process. Multi-level monitoring, real-time tracking of the process, automatic error processing and remote real-time queries.

Description

Intelligent supervision method of dangerous goods logistics based on radio frequency identification

The present invention is based on the patent application number: 200810035543.1, the patent application name is: "Intelligent Supervision System and Method for Dangerous Goods Logistics Based on Radio Frequency Identification", the patent applicant is: Shanghai Jiaotong University, and the patent application date is: April 3, 2008 divisional patent application.

technical field

The present invention relates to a system and method in the technical field of detection, in particular to a radio frequency identification (RFID)-based intelligent supervision method for dangerous goods logistics.

Background technique

In recent years, there have been many road transportation accidents of dangerous goods in my country, which have caused great damage to the residents and ecological environment around the road. According to statistics, more than 95% of hazardous chemicals in our country are long-distance transportation problems, such as the annual flow of liquid ammonia reaches 800,000 tons, and the annual flow of liquid chlorine reaches 1.7 million tons, of which about 80% are transported by road for long distances. Dangerous goods are potentially dangerous during transportation. Once a traffic accident occurs, the catastrophic consequences will spread widely and the impact will be very serious.

At present, there are many unsafe factors in the transportation of dangerous goods, and there is a lack of effective supervision methods. On the one hand, the government and enterprises lack effective scientific and technological monitoring means for vicious accidents during the transportation of dangerous goods and the potential danger of being hijacked for terrorist activities, and cannot provide early warning of unsafe incidents, and cannot obtain timely support after the accident occurs. Relevant information of emergency response; on the other hand, the drivers and passengers have violations such as speeding and overloading during the driving process of the vehicle, and the vehicle does not drive according to the predetermined route or enters and exits the target area in violation of regulations, and cannot obtain the status information of dangerous goods in time. These factors are all security risks. Therefore, how to use advanced technology to ensure the safety of dangerous goods transportation and improve the safety level of the entire dangerous goods transportation industry is an urgent problem to be solved. In order to adapt to the transportation safety supervision of special goods such as dangerous goods, the method of cooperating with vehicle-mounted monitoring terminals and remote monitoring centers is generally adopted at present. The vehicle-mounted terminals send vehicle information such as their own position and driving speed in real time, and the monitoring center realizes real-time tracking of vehicle positions, Carry out transportation route planning, and receive manual alarm requests from vehicle-mounted terminals and other functions.

According to the literature search of the existing technology, Xu Songhua analyzed the key technology of the monitoring system of dangerous goods transportation vehicles in his master thesis "Research on Key Technologies of Dangerous Goods Transportation Monitoring System" [Beijing Jiaotong University. 2007], and proposed a dangerous The framework of the cargo transportation monitoring system has realized the preliminary development of the dangerous cargo monitoring system. It uses barcodes as the cargo information storage unit, and the vehicle-mounted system uploads the cargo type, its own vehicle speed, GPS location and other information to the monitoring center for management in real time. In the search, it was also found that Lian Baokang and others pointed out that in the paper "Analysis of the Status Quo of GPS Transportation Monitoring Technology for Dangerous Goods" published in "Journal of Safety and Environment" [2006.6 Supplement: 173-175], they pointed out that the future development of dangerous goods transportation monitoring technology The development trend is to comprehensively use barcode technology to obtain information on hazardous chemicals, effectively integrate communication technologies such as GPS (Global Positioning System), TRANS-GIS (Traffic Geographic Information System), and GSM (Global System for Mobile Communications), and establish an intelligent whole-process monitoring of hazardous chemicals. The chemical transportation system indirectly realizes the dynamic tracking and management of dangerous goods through the dynamic positioning of vehicles, so as to ensure that various information of corresponding dangerous goods is shared among departments such as safety, public security, fire protection, transportation, environmental protection, and health. However, none of these technologies can achieve real-time monitoring and integrated supervision of the physical quantities of dangerous goods.

Contents of the invention

The purpose of the present invention is to address the deficiencies of the prior art, to provide a method for intelligent monitoring of dangerous goods logistics based on radio frequency identification, so as to solve the problem that the dangerous goods monitoring system in the background technology cannot collect, process and transmit the state of dangerous goods in real time, Realize real-time intelligent supervision of the physical state of dangerous goods and dynamic logistics information.

The present invention is achieved through the following technical solutions:

The intelligent monitoring system for dangerous goods logistics based on radio frequency identification involved in the present invention includes: a packing point monitoring station, multiple checkpoints on the way, a unloading point monitoring station, a dangerous goods packing box state monitoring system, a dangerous goods vehicle monitoring system and Dangerous goods logistics integrated supervision platform. These subsystems cooperate to complete the real-time supervision of the dangerous goods logistics process, among which:

The packing point monitoring station is responsible for the installation of the dangerous goods packing box status monitoring system and the dangerous goods on-board monitoring system, module initialization and remote pre-recording and submission of logistics information;

The multiple checkpoints on the way are responsible for state collection and safety information verification of the dangerous goods packaging boxes of incoming vehicles, and upload the results to the dangerous goods logistics integrated supervision platform for centralized management;

The monitoring station at the unloading point is responsible for state collection and safety information verification of the dangerous goods packaging boxes of the vehicle, dismantling the dangerous goods packaging box status monitoring system if necessary, and uploading the results to the dangerous goods logistics integrated supervision platform for centralized management;

The state monitoring system of the dangerous goods packaging box is responsible for real-time collection of each physical quantity to be inspected in the packaging box, and regularly writes the RFID label of the packaging box, and at the same time executes the instructions forwarded by the dangerous goods vehicle monitoring system;

The on-board monitoring system for dangerous goods is responsible for real-time collection of dangerous goods state information in the RFID tags of packing boxes and safety information of packing boxes, real-time collection of GPS position, vehicle speed and other information through on-board sensors, and realizes integrated supervision platform with dangerous goods logistics through GPRS communication module Real-time data exchange, security alarm and data upload for these information, automatic fault handling, and also accept various instructions from the dangerous goods logistics integrated supervision platform to realize real-time query of various information and other tasks;

The dangerous goods logistics integrated supervision platform is responsible for wireless data exchange with each dangerous goods on-board monitoring system, and exchanges data with each monitoring station at the packing point, the monitoring station at the unloading point, and the checkpoint on the way through the Internet, and verifies all kinds of data , centralized storage and other processing to realize real-time tracking of dangerous goods transport vehicles, global monitoring of dangerous goods status, various alarms and fault handling, route planning for vehicles, and processing of user remote login queries and other requests.

The packing point monitoring station includes a packing point monitoring terminal module, a first fixed RFID read-write device, and a single-chip programmer. in:

The packing point monitoring terminal module controls the first fixed RFID read-write device to realize the read and write operation of the RFID tag, and the packing point monitoring terminal module controls the single-chip programmer to realize the program download of the single-chip microcomputer of the packing case state collection and monitoring module, and the loading The box point monitoring terminal module provides an operation interface for the operator, and logs in the relevant logistics information and initialization information used in it to the Web site of the dangerous goods logistics integrated supervision platform through a web browser to pre-record the initial logistics information;

The first fixed RFID reading and writing device communicates with the packing point monitoring terminal module to realize wireless reading and writing of RFID tags;

The single-chip microcomputer programmer receives the single-chip microcomputer program file provided by the packing point monitoring terminal module, and downloads the program to the single-chip microcomputer of the packing case state collection and monitoring module.

The checkpoint on the way includes a monitoring terminal module at the checkpoint on the way, a second fixed RFID read-write device, and a first hand-held PDA (Personal Digital Assistant). in:

The checkpoint monitoring terminal module controls the second fixed RFID read-write device, realizes the read-write operation to the RFID tag, and imports the data of the first hand-held PDA; the checkpoint monitoring terminal module checks the information in the RFID tag, If the door seal is safe or the physical state of dangerous goods is abnormal, the operator will be alerted for emergency treatment, and the collected information and verification results will be uploaded to the dangerous goods logistics integrated supervision platform for centralized management, and an operation interface will be provided for the operator;

The second fixed RFID reading and writing device is controlled by the checkpoint monitoring terminal module to realize wireless reading and writing of RFID tags;

The first handheld PDA is used to manually read all kinds of information in the RFID tag of the packaging box, and export these information through its checkpoint monitoring terminal module.

The unloading point monitoring station includes an unloading point monitoring terminal module, a third fixed RFID read-write device, and a second handheld PDA. in:

The monitoring terminal module of the unloading point provides an operation interface for the operator, controls the fixed RFID read-write device, realizes the read-write operation of the RFID tag, and imports the data of the second handheld PDA, and the monitoring terminal module of the unloading point also The information in the RFID tag is verified. If the door seal is safe or the physical state of the dangerous goods is abnormal, the operator will be alerted for emergency treatment, and the collected information and verification results will be uploaded to the dangerous goods logistics integrated supervision platform for centralized management. ;

The third fixed RFID read-write device is controlled by the unloading point monitoring terminal module to realize wireless read-write of RFID tags;

The second handheld PDA is used to manually read all kinds of information in the RFID tag of the packaging box, and export these information through its unpacking point monitoring terminal module.

The state monitoring system of the dangerous goods packing box includes a packing box state collection and monitoring module in the box, a sensor group, an RFID reading and writing device in the box, a packing box RFID label and a first alarm indicating unit. in:

The packing case state acquisition and monitoring module is the processing core of the system. By querying each collection channel of the sensor group, the physical quantities to be inspected in the packing case are collected in real time, and the monitoring parameters are judged. If the parameters exceed the predetermined alarm value, the system starts The first alarm indication unit (alarm light, buzzer, etc.) performs a local alarm, and the packaging box status acquisition and monitoring module writes the monitoring parameter value into the packaging box RFID tag through the RFID reading and writing device in the box according to the preset reporting frequency. And according to the preset download frequency, read the special instruction storage area in the RFID tag of the package to execute the special instructions forwarded by the dangerous goods on-board monitoring system (such as changing the collection frequency, shielding the collection channel, etc.);

The RFID reading and writing equipment in the box is controlled by the packaging box state acquisition and monitoring module to realize wireless reading and writing of RFID tags;

The sensor group collects the physical quantity to be measured, and each sensor is respectively connected to a collection channel of the packing case state collection and monitoring module;

The RFID tag of the packaging box stores various information of dangerous goods, including logistics information, dangerous goods status information, door seal safety information, and monitoring instruction information;

The alarm indication unit acts after receiving the alarm signal output by the packing box state acquisition and monitoring module, and sends an alarm to nearby personnel.

The vehicle-mounted monitoring system for dangerous goods includes a vehicle-mounted monitoring terminal module, a vehicle-mounted RFID device, a GPS receiver, a GPRS communication module, a display screen, and a second alarm indicating unit. in:

The vehicle-mounted monitoring terminal module controls the vehicle-mounted RFID equipment to read and write the RFID tags of the packaging boxes, collects various status information of the dangerous goods packaging boxes in real time, and realizes real-time data exchange with the dangerous goods logistics integrated supervision platform through the GPRS communication module. The preset reporting frequency uploads various data, receives and executes various instructions sent by the dangerous goods logistics integrated supervision platform, and the on-board monitoring terminal module also outputs to the display screen to display various information in real time. When the monitoring status or safety status of the packing box is abnormal , the output signal triggers the second alarm indication unit to perform a local alarm in time, and notify the personnel on board to handle it;

The vehicle-mounted RFID device is controlled by the vehicle-mounted monitoring terminal module to realize wireless reading and writing of RFID tags;

The GPS receiver communicates with the satellite through the GPS antenna to receive GPS data in real time, and the vehicle monitoring terminal module collects and processes these data;

The GPRS communication module communicates with the mobile network through the GPRS antenna to realize the wireless communication between the vehicle monitoring terminal module and the dangerous goods logistics integrated supervision platform.

The dangerous goods logistics integrated supervision platform includes an integrated supervision module, a real-time database and a remote supervision website. in:

The integrated supervision module performs wireless data exchange with the dangerous goods on-board monitoring system of each transport vehicle, analyzes the message uploaded by the dangerous goods on-board monitoring system, and performs corresponding processing according to the command word of the message: ① Verify initialization application, verify Pre-record information in the real-time database and send initialization messages to the on-board system; ② Store the reported dangerous goods status data in the real-time database; ③ Receive fault or alarm requests, realize local alarms and automatically feed back messages for processing (such as shielding fault collection channel); ④ accept the route planning application, and send the data of the next batch of passing locations and dangerous locations; ⑤ accept the active dormancy application, and send the dormancy permission message;

The integrated monitoring module monitors, reads and writes the real-time database, exchanges various commands and data information, generates query messages and sends them to the corresponding dangerous goods on-board monitoring system by querying the remote user requests in the database, so that it can execute corresponding Task;

The integrated supervision module provides a monitoring management interface for the administrator, who can view all dangerous goods logistics information, dangerous goods safety information, dangerous goods status information, vehicle location information, fault and alarm information, etc.; The alarm information will be sent to the local alarm, and the administrator will be prompted to deal with it;

The real-time database centrally stores various information of the dangerous goods logistics monitoring process, including dangerous goods logistics information, package case RFID label safety information, dangerous goods real-time monitoring parameter data, dangerous goods on-board monitoring system status, various faults and alarm status, remote Query information, user account information;

The remote monitoring website provides logistics information and real-time query of monitoring status for dangerous goods freight forwarders and users; provides services such as remote data entry and modification for monitoring stations at packing points, monitoring stations at unloading points, and checkpoints on the way.

The intelligent supervision method of dangerous goods logistics based on radio frequency identification involved in the present invention is specifically: installing a set of dangerous goods packing box state monitoring system in the dangerous goods packing box, collecting the physical state of dangerous goods in real time and writing them into the RFID tag outside the container In the process, the dangerous goods on-board monitoring system, monitoring stations and checkpoints on the way are used to read and write the RFID tag information in real time during the whole logistics process, and dynamically exchange dangerous goods logistics information, status information, safety Information, vehicle driving status and other information; the dangerous goods logistics integrated supervision platform realizes the centralized supervision of the logistics process and provides real-time query for remote users; forms a set of "multi-level real-time monitoring, synchronous and timely alarm, automatic fault processing, and unified logic distribution" The product logistics intelligent monitoring method fully realizes the distributed multi-level monitoring of the dangerous goods logistics process, real-time tracking of the process, automatic error handling and remote real-time query.

Compared with the prior art, the present invention is an integrated intelligent supervision system integrating RFID, GPS, GIS, GPRS and other technologies. During the whole process of dangerous goods logistics, the physical state of dangerous goods, dynamic logistics information, etc. are comprehensively monitored in real time and timely Alarm processing fully realizes the distributed multi-level monitoring of the dangerous goods logistics process, real-time tracking of the process, automatic error handling and remote real-time query. The system has strong real-time performance, security, fault tolerance and scalability. The present invention is applicable to various occasions for monitoring the closed package transportation of dangerous goods.

Description of drawings

Fig. 1 is the structural diagram of the intelligent supervision system of the dangerous goods logistics process of the present invention

Figure 2 is a structural diagram of the state monitoring system for dangerous goods packaging boxes

Figure 3 is a structural diagram of the dangerous goods on-board monitoring system

Figure 4 is the structure diagram of the dangerous goods logistics integrated supervision platform

Detailed ways

The embodiments of the present invention are described in detail below in conjunction with the accompanying drawings: this embodiment is implemented on the premise of the technical solution of the present invention, and detailed implementation methods and specific operating procedures are provided, but the protection scope of the present invention is not limited to the following the described embodiment.

As shown in Figure 1, the dangerous goods logistics intelligent supervision system in this embodiment includes a packing point monitoring station 1, a dangerous goods packing box status monitoring system 2, a dangerous goods on-board monitoring system 3, multiple checkpoints on the way 4, and dangerous goods logistics integration Supervision platform 5, unloading point monitoring station 6. These subsystems cooperate to complete the real-time supervision of the dangerous goods logistics process.

1. Packing point monitoring station

The packing point monitoring station is mainly composed of packing point monitoring terminal module, fixed RFID reading and writing equipment (including fixed RFID reader and RFID antenna), and single-chip programmer. The main task of the packing point monitoring station is to initialize the dangerous goods logistics process, including the installation and initialization of the dangerous goods packing box status monitoring system, the dangerous goods vehicle monitoring system, and the pre-recording of the initial data of the dangerous goods logistics process. The main functions of each component are as follows:

1) Packing point monitoring terminal module

The specific functions of the packing point monitoring terminal module are: (1) the packing point monitoring terminal module controls the fixed RFID reading and writing equipment to realize the reading and writing operation of RFID tags; (2) the packing point monitoring terminal module controls the microcontroller programmer to realize (3) The operator logs the relevant logistics information and initialization information used in the monitoring terminal module of the packing point to the Web site of the dangerous goods logistics integrated supervision platform through a web browser, and performs logistics initial information. Pre-recording; provide an operation interface for the operator.

2) Fixed RFID reading and writing equipment

The fixed RFID reader communicates with the monitoring terminal module of the packing point, and realizes the mutual conversion between the electrical signal and the radio frequency signal through the RFID antenna, and realizes the wireless reading and writing of the RFID tag.

3) MCU programmer

The single-chip microcomputer programmer receives the single-chip microcomputer program file provided by the monitoring terminal module of the packing point, and downloads the program to the single-chip microcomputer of the packing case state collection and monitoring module.

2. En route checkpoint

The checkpoint on the way is mainly composed of the monitoring terminal module of the checkpoint on the way, fixed RFID reading and writing equipment (including fixed RFID reader and RFID antenna), and handheld PDA (personal digital assistant). The main task of the checkpoint on the way is to verify various information in the RFID tags of dangerous goods. If there is an unsafe or alarm situation, the operator is prompted to deal with it immediately; at the same time, the information and verification results are uploaded to the dangerous goods logistics integrated supervision platform. manage. The main functions of each component are as follows:

1) Checkpoint monitoring terminal module

The specific functions of the checkpoint monitoring terminal module are: (1) control the fixed RFID reading and writing equipment, and realize the reading and writing operation of the RFID tag; (2) import the data of the handheld PDA; (3) verify the information in the RFID tag , if the door seal is safe or the physical state of dangerous goods is abnormal, an alarm will be sent to the operator for emergency treatment; (4) the collected information and verification results will be uploaded to the dangerous goods logistics integrated supervision platform for centralized management; (5) for the operation The operator provides an operation interface.

2) Fixed RFID reading and writing equipment

The fixed RFID reader is controlled by the monitoring terminal module of the checkpoint, and the mutual conversion between the electrical signal and the radio frequency signal is realized through the RFID antenna, and the wireless reading and writing of the RFID tag is realized.

3) Handheld PDA

The operator can use the handheld PDA to manually read all kinds of information in the RFID tag of the packaging box, and export this information through its checkpoint monitoring terminal module.

3. Monitoring station at unloading point

The unloading point monitoring station is mainly composed of unloading point monitoring terminal module, fixed RFID reading and writing equipment (including fixed RFID reader and RFID antenna), and handheld PDA. The main task of the monitoring station at the unloading point is to verify various information in the RFID tags of dangerous goods. If there is an unsafe or alarm situation, the operator is prompted to deal with it immediately; at the same time, the information and verification results are uploaded to the integrated supervision of dangerous goods logistics Centralized management of the platform. The main functions of each component are as follows:

1) Unloading point monitoring terminal module

The specific functions of the monitoring terminal module at the unloading point are: providing an operation interface for the operator; controlling the fixed RFID reading and writing equipment to realize the reading and writing operation of the RFID tag; importing the data of the handheld PDA; verifying the information in the RFID tag, If the door seal is safe or the physical state of dangerous goods is abnormal, the operator will be alerted for emergency treatment; the collected information and verification results will be uploaded to the dangerous goods logistics integrated supervision platform for centralized management.

2) Fixed RFID reading and writing equipment

The fixed RFID reader is controlled by the monitoring terminal module at the unloading point, and the mutual conversion between the electrical signal and the radio frequency signal is realized through the RFID antenna, and the wireless reading and writing of the RFID tag is realized.

3) Handheld PDA

The operator can use the handheld PDA to manually read all kinds of information in the RFID tag of the packaging box, and export the information through the monitoring terminal module of the unpacking point.

4. Dangerous goods packing box status monitoring system

The state monitoring system of dangerous goods packing box is composed of packing box state acquisition and monitoring module, sensor group, RFID reading and writing equipment in the box (including fixed RFID reader and RFID antenna), packing box RFID label and alarm indication unit . The main functions of each component are as follows:

1) Packing box status acquisition and monitoring module

The packing case status acquisition and monitoring module is the processing core of the system. By querying the collection channels of the sensor group, the physical quantities to be inspected in the packing case are collected in real time, and the monitoring parameters are judged. If the parameters exceed the predetermined alarm value, the alarm indication will be activated. Units (alarm lights, buzzers, etc.) perform local alarms; according to the preset reporting frequency, write the monitoring parameter value into the RFID tag of the packaging box through the RFID fixed reader in the box; according to the preset download frequency, the packaging box Read the special instruction storage area in the RFID tag to execute the special instructions forwarded by the dangerous goods on-board monitoring system (such as changing the collection frequency, shielding the collection channel, etc.).

2) RFID reading and writing equipment in the box

The fixed RFID reader is controlled by the package state acquisition and monitoring module, and realizes the mutual conversion between the electrical signal and the radio frequency signal through the RFID antenna, and realizes the wireless reading and writing of the RFID tag.

3) Sensor group

The sensor group is composed of a group of sensors, and the type, number and layout of the sensors are determined according to the monitoring requirements. The sensor group is installed in the packaging box according to certain layout requirements, and the physical quantity to be measured is collected. Each sensor is connected to a collection channel of the packaging box state acquisition and monitoring module.

4) RFID tags for packing boxes

Various information about dangerous goods is stored in the RFID tag of the package, including logistics information, dangerous goods status information, door seal safety information, and monitoring instruction information. The RFID tag of the packing box can be communicated by various fixed RFID readers and handheld PDAs; the information in the tag can be read or written by the corresponding reading and writing equipment after being authorized.

5) Alarm indication unit

The alarm indication unit includes an alarm lamp and a buzzer, and is installed on the outer shell of the packing box. After receiving the alarm signal output by the packing box state acquisition and monitoring module, it acts and sends an alarm to nearby personnel.

5. Dangerous goods on-board monitoring system

The dangerous goods on-board monitoring system consists of on-board monitoring terminal module, on-board RFID equipment (including fixed RFID reader and RFID antenna), GPS receiver (including GPS antenna), GPRS communication module (including GPRS antenna), display screen, keyboard, The alarm indication unit is composed. The main functions of each component are as follows:

1) Vehicle monitoring terminal module

The vehicle-mounted monitoring terminal module controls the vehicle-mounted RFID reader to read and write the RFID tags of the packaging boxes, and collects various status information of the dangerous goods packaging boxes in real time; through the GPRS communication module, the real-time data exchange with the integrated supervision platform of the dangerous goods logistics is realized, and according to the schedule Set the reporting frequency to upload various data, receive and execute various instructions sent by the dangerous goods logistics integrated supervision platform; output to the display screen to display various information in real time; when the monitoring status or safety status of the packing box is abnormal, the output signal triggers an alarm indication The unit makes a local alarm in time and notifies the personnel on board to deal with it.

2) Vehicle RFID equipment

The vehicle-mounted RFID reader is controlled by the vehicle-mounted monitoring terminal module, which realizes the mutual conversion between electrical signals and radio frequency signals through the RFID antenna, and realizes wireless reading and writing of RFID tags.

3) GPS receiver

The GPS receiver communicates with the satellite through the GPS antenna, and receives GPS data (GPS position coordinates, driving direction, driving speed, etc.) in real time, and the vehicle monitoring terminal module collects and processes these data.

4) GPRS communication module

The GPRS communication module communicates with the mobile network through the GPRS antenna to realize the wireless communication between the vehicle monitoring terminal module and the dangerous goods logistics integrated supervision platform.

5) Display screen

The display screen indicates the status parameters of dangerous goods, door seal safety status, vehicle GPS data and alarm status in real time for the driver to observe at any time.

6) Keyboard

The personnel on the vehicle realize the indication switching of various states, system opening/closing, emergency reset, system reset, etc. through keyboard operation.

7) Alarm indication unit

The alarm indication unit includes on-board alarm indicator lights, buzzers, etc. When a fault or alarm occurs, the output signal of the on-board monitoring terminal module triggers the alarm indication unit, prompting the driver to take corresponding measures.

6. Dangerous goods logistics integrated supervision platform

The dangerous goods logistics integrated supervision platform is mainly composed of an integrated supervision module, a real-time database and a remote supervision website. The main functions of each part are as follows:

1) Integrated supervision module

a) The integrated supervision module performs wireless data exchange with the dangerous goods on-board monitoring system of each transport vehicle, analyzes the message uploaded by the dangerous goods on-board monitoring system, and performs corresponding processing according to the message command word: (1) Verify initialization application, Verify the pre-recorded information in the real-time database, and send initialization messages to the on-board system; (2) store the reported dangerous goods status data into the real-time database; (3) receive fault or alarm requests, realize local alarms and automatically feed back messages Processing (such as shielding the fault acquisition channel); (4) accepting the route planning application, and sending the data of the next batch of passing locations and dangerous locations; (5) accepting the active dormancy application, and sending the dormancy permission message.

b) Monitor, read and write operations on the real-time database, exchange various commands and data information, generate query messages by querying remote user requests in the database and send them to the corresponding dangerous goods on-board monitoring system, so that they can perform corresponding tasks.

c) Provide a monitoring and management interface for administrators to view all dangerous goods logistics information, dangerous goods safety information, dangerous goods status information, vehicle location information, fault and alarm information, etc. globally.

d) Make a local alarm according to the current fault and alarm information, and prompt the administrator to deal with it.

2) Real-time database

The real-time database centrally stores all kinds of information during the monitoring process of dangerous goods logistics, including dangerous goods logistics information, safety information of RFID labels on packaging boxes, real-time monitoring parameter data of dangerous goods, status of dangerous goods on-board monitoring system, various faults and alarm status, remote query information , User account information.

3) Remote supervision website

Provide real-time query of logistics information and monitoring status for dangerous goods freight forwarders and users; provide remote data entry and modification services for monitoring stations at packing points, monitoring stations at unloading points, and checkpoints on the way.

When the above-mentioned system of the present embodiment works specifically, the process is as follows:

1. Packing stage

1) Initialize the status monitoring system of dangerous goods packing boxes

Before packing, the operator selects the corresponding sensor group according to the parameters of the dangerous goods to be monitored, and selects the appropriate space layout to install in the packing case according to the monitoring requirements. Write the logistics information of dangerous goods to be transported and the initialization information of monitoring parameters into the package RFID tags of the dangerous goods package status monitoring system through the fixed RFID reader at the monitoring station of the packing point, and assign a globally unique ID to it . Enter the single-chip microcomputer program corresponding to the selected monitoring sensor group into the packing box status acquisition and monitoring module through the single-chip programmer, and bind it to the packing box RFID tag ID, so that it can only read and write the tag. After completing the above initialization, install other components (such as alarm lights, buzzers, etc.) for the packaging box. After the boxing is completed, close the box door, install the packaging box RFID tag, and insert the door locking pin.

2) Initialize the dangerous goods on-board monitoring system

After the dangerous goods packing box vehicle enters the station, if the vehicle is not equipped with a dangerous goods on-board monitoring system, install and initialize it. Press the hardware reset button of the dangerous goods on-board monitoring system to clear all original configuration information.

3) Pre-recorded dangerous goods logistics and supervision information

The operator of the monitoring station at the packing point logs in the web site of the integrated monitoring platform for dangerous goods logistics remotely, and pre-records the dangerous goods logistics information, monitoring parameters and collection channels, the ID of the packing box RFID tag and the ID of the on-board monitoring system for dangerous goods into the dangerous goods logistics integration A real-time database of regulatory platforms.

2. Transport stage

The on-board monitoring system for dangerous goods regularly reads and writes the RFID tags of the packaging boxes, and collects various status information of the packaging boxes for dangerous goods; judges the information of the RFID tags according to the parameter thresholds set during the initialization of the on-board monitoring system. When the time comes, the local alarm will be issued in time to notify the on-board personnel to deal with it; the data exchange with the dangerous goods logistics integrated supervision platform will be realized through the wireless communication network, and various status information and GPS data will be uploaded according to the preset reporting frequency; the information sent by the integrated supervision platform will be received. Various instructions are executed; the display screen displays various information in real time.

The integrated supervision platform receives and processes the data messages sent by each dangerous goods on-board monitoring system, analyzes them and processes them according to the message type; stores various information of dangerous goods in the real-time database; sends feedback messages in response to various requests; Judging the information based on the parameter thresholds set during the initialization of the vehicle-mounted monitoring system for dangerous goods. When an abnormal state or failure occurs, a local alarm will be issued in time to notify the administrator to deal with it, and an error processing message will be automatically generated and sent to the vehicle-mounted monitoring system for dangerous goods; Real-time monitoring of remote user query requests in the real-time database, converted into messages and sent to the corresponding dangerous goods on-board monitoring system.

3. Inspection on the way

When the dangerous goods packing box vehicle enters the station, the checkpoint personnel control the RFID reading and writing equipment through the checkpoint monitoring terminal module to realize the collection of various information on the RFID tag (or directly collect with a handheld PDA, and then import it into the checkpoint monitoring terminal module ). The checkpoint monitoring terminal module automatically verifies various information such as logistics, door seal safety, and the physical state of dangerous goods in the RFID tag of the packaging box. If there is an unsafe or alarm situation, the operator can be prompted to deal with it immediately; the checkpoint monitoring terminal module Upload the information verification results to the dangerous goods logistics integrated supervision platform for centralized management.

4. Unpacking stage

When the dangerous goods packing box vehicle enters the station, the personnel at the unloading point control the RFID reading and writing equipment through the unloading point monitoring terminal module to realize the information collection of the RFID tag (it can also be directly collected by a handheld PDA, and then imported into the unloading point monitoring terminal module). The checkpoint monitoring terminal module uploads the information verification results to the dangerous goods logistics integrated supervision platform for automatic confirmation. If the feedback information indicates that the whole process of transportation is safe, the container can be unloaded into the yard or unloaded, otherwise, corresponding alarm processing will be carried out. If the vehicle does not participate in the follow-up monitoring and transportation of dangerous goods, the state monitoring system of dangerous goods packaging boxes can be removed if necessary.

Based on the above-mentioned system, the supervision method provided by the present invention is to install a set of dangerous goods packaging box state monitoring system in the dangerous goods packaging box, collect the physical state of the dangerous goods in real time and write it into the RFID tag outside the box; The monitoring system, monitoring stations and checkpoints can read and write RFID tag information in real time during the whole process of logistics, and dynamically exchange dangerous goods logistics information, status information, safety information, vehicle driving status and other information with the dangerous goods logistics integrated supervision platform; The integrated monitoring platform for dangerous goods logistics realizes the centralized supervision of the logistics process and provides real-time query for remote users, and completes a set of intelligent monitoring of dangerous goods logistics with "multi-level real-time monitoring, synchronous and timely alarm, automatic fault processing, and unified logical distribution".

Below in conjunction with accompanying drawing and specific working steps, the implementation mode of this embodiment is described as follows:

In this embodiment, the container is used as the transport packaging container, and the dangerous goods are loaded into the container at the packing point, and the container truck installed with the dangerous goods on-board monitoring system is responsible for transporting them, passing through two checkpoints, and finally transporting them to the destination unloading point Real-time intelligent supervision of the whole process of dangerous goods logistics.

Figure 1 is a flow chart of intelligent supervision of dangerous goods logistics process. As shown in the figure, dangerous goods are transported by dangerous goods packing box vehicles after installation of dangerous goods packing box status monitoring system 2 and dangerous goods on-board monitoring system 3 at packing point monitoring station 1. During transportation, the on-board dangerous goods monitoring system 3 monitors the status of dangerous goods, packing boxes, vehicles, etc. in real time, and regularly reports data to the integrated supervision platform 5 for dangerous goods logistics; After the data reading and verification of the RFID tag of the box, if there is no safety alarm, the transportation will continue; when the dangerous goods packing box vehicle drives into the monitoring station 5 of the unloading point, the checkpoint will read the data of the RFID tag of the packing box After the sum verification, if there is no safety alarm, the box will be unloaded and put into storage. During the whole process of logistics, various systems such as the monitoring station 1 at the packing point, the on-board monitoring system for dangerous goods 3, the checkpoint 4 on the way, and the monitoring station 6 at the unloading point all realize data exchange with the integrated supervision platform 5 for dangerous goods logistics, realizing the whole process Real-time intelligent supervision of dangerous goods logistics. All kinds of users can remotely log in to the supervision platform 5 website to track and query various information of dangerous goods in real time.

Figure 2 is a structural diagram of the state monitoring system for dangerous goods packaging boxes. As shown in the figure, the state collection and monitoring module 7 is installed in the dangerous goods packaging box 11, collects the parameter data of each sensor group 8 in real time, and performs threshold judgment. If it exceeds the limit, it will output an indicator light 9 and a buzzer 10 to realize a local alarm. ; The monitoring module regularly reads and writes the RFID tag 12 of the packing case, and performs data exchange of the monitoring status and instructions;

Figure 3 is a structural diagram of the vehicle-mounted monitoring system for dangerous goods. As shown in the figure, the main processing unit (vehicle monitoring terminal module) 15 is the processing core of the system, and it controls the RFID reader 17 to read and write the RFID tag of the packaging box through the RFID antenna 16 to exchange data. Output indicator light 18 and buzzer 19 carry out local alarm prompting driver to take measures; Main processing unit 15 receives the GPS information that GPS receiver 22 gathers by GPS antenna 23, and by GPRS communication module 24 and wireless communication antenna 25 and dangerous goods logistics The integrated supervision platform realizes data exchange; at the same time, the main processing unit also receives the driver's keyboard 20 operation instructions, and outputs various status information to the vehicle display screen 21 in real time.

Figure 4 is a structural diagram of the dangerous goods logistics integrated supervision platform. As shown in the figure, the integrated supervision module 26 includes a main processing unit 27, an alarm/fault processing module 31, an administrator interface module 32, a path planning module 33, a main scheduling module 34, a message encoder 35, a message decoder 36 and communication module 37 . The main processing unit 27 is the core processing unit of the platform. The message encoder 35 and the message decoder 36 are respectively responsible for encoding and decoding the messages. The communication module 37 assists in realizing the communication between the main processing unit 27 and the dangerous goods on-board monitoring system 3. Message communication; the data directly interacted between the platform and the network is exchanged directly with the communication module 37 by the main processing unit 27; the close data exchange between the main processing unit 27 and the real-time database 28 realizes the reading and writing of various information and instructions; the main scheduling Module 34 performs dynamic scheduling, monitoring and fault handling on each sub-module of the integrated supervisory module; supervisory website 29 interacts with remote user 30, reads information in real-time database 28 and provides it to user 30, and receives user's query instruction and stores it in real-time database28.

Claims (1)

1. dangerous-article physical-distribution intelligent supervision method based on radio-frequency (RF) identification, it is characterized in that, the dangerous-article packing condition monitoring system is installed in dangerous-article packing, real-time collection dangerous material physical state also writes in the outer RFID label of container, adopt the dangerous material vehicle-mounted monitoring system then, unload case point monitoring station and the way in the inspection post in the logistics overall process, the RFID label information is read and write in real time, and with the integrated supervising platform dynamic exchange of dangerous-article physical-distribution dangerous-article physical-distribution information, status information, security information, vehicle running state information; Adopt the integrated supervising platform of dangerous-article physical-distribution to realize the centralized supervisory of logistics progress and provide the long-distance user to inquire about in real time, the dangerous-article physical-distribution intelligent monitoring of form multistage real-time monitoring, in time report to the police synchronously, fault being handled automatically, logic distributes unified, the complete distribution multilevel monitor of realizing the dangerous-article physical-distribution process, process real-time follow-up, fault processing and remote live inquiry automatically;

Described dangerous material vehicle-mounted monitoring system is responsible for gathering in real time dangerous material status information, the packing case security information in the packing case RFID label, gather GPS positional information, speed information in real time by onboard sensor, realize exchanging by the GPRS communication module with the real time data of the integrated supervising platform of dangerous-article physical-distribution, these information are carried out security alarm and data upload, automatically realize fault handling, the various instructions of also accepting the integrated supervising platform of dangerous-article physical-distribution simultaneously realize the real-time query task of various information;

Inspection post in the described way comprises inspection post monitor terminal module in the way, the second fixed RFID read-write equipment, the first hand-held PDA, wherein:

The inspection post monitor terminal module controls second fixed RFID read-write equipment in the described way is realized the read-write operation to the RFID label, and imports the data of the first hand-held PDA; Inspection post monitor terminal module is carried out verification to the information in the RFID label in the way, if door envelope safety or dangerous material physical state are unusual, then report to the police to carry out emergency processing to the operator, simultaneously the information that collects and check results are uploaded to the integrated supervising platform centralized management of dangerous-article physical-distribution, and provide operation interface for the operator;

The described second fixed RFID read-write equipment is realized the radio read-write to the RFID label by monitor terminal module controls in inspection post in the way;

Described first hands PDA, is used for manually reading the various information of packing case RFID label, and derives these information by its inspection post monitor terminal module,

The described case point monitoring station that unloads comprises and unloads case point monitor terminal module, the 3rd fixed RFID read-write equipment, the second hand-held PDA, wherein:

The described case point monitor terminal module of unloading provides operation interface for the operator, control the 3rd fixed RFID read-write equipment, realization is to the read-write operation of RFID label, and import the data of the second hand-held PDA, unload case point monitor terminal module and also the information in the RFID label is carried out verification, if door envelope safety or dangerous material physical state are unusual, then report to the police carrying out emergency processing, and information and the check results that collects is uploaded to the integrated supervising platform centralized management of dangerous-article physical-distribution to the operator;

The described the 3rd fixed RFID read-write equipment is realized the radio read-write to the RFID label by unloading case point monitor terminal module controls;

The described second hand-held PDA is used for manually reading the various information of packing case RFID label, and unloads case point monitor terminal module by it and derive these information.

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