CN114913617A - Loading and unloading flow control system based on 2.4G radio frequency identification and single chip microcomputer - Google Patents
Loading and unloading flow control system based on 2.4G radio frequency identification and single chip microcomputer Download PDFInfo
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- CN114913617A CN114913617A CN202210450840.2A CN202210450840A CN114913617A CN 114913617 A CN114913617 A CN 114913617A CN 202210450840 A CN202210450840 A CN 202210450840A CN 114913617 A CN114913617 A CN 114913617A
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- G—PHYSICS
- G07—CHECKING-DEVICES
- G07C—TIME OR ATTENDANCE REGISTERS; REGISTERING OR INDICATING THE WORKING OF MACHINES; GENERATING RANDOM NUMBERS; VOTING OR LOTTERY APPARATUS; ARRANGEMENTS, SYSTEMS OR APPARATUS FOR CHECKING NOT PROVIDED FOR ELSEWHERE
- G07C1/00—Registering, indicating or recording the time of events or elapsed time, e.g. time-recorders for work people
- G07C1/10—Registering, indicating or recording the time of events or elapsed time, e.g. time-recorders for work people together with the recording, indicating or registering of other data, e.g. of signs of identity
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- G—PHYSICS
- G07—CHECKING-DEVICES
- G07C—TIME OR ATTENDANCE REGISTERS; REGISTERING OR INDICATING THE WORKING OF MACHINES; GENERATING RANDOM NUMBERS; VOTING OR LOTTERY APPARATUS; ARRANGEMENTS, SYSTEMS OR APPARATUS FOR CHECKING NOT PROVIDED FOR ELSEWHERE
- G07C1/00—Registering, indicating or recording the time of events or elapsed time, e.g. time-recorders for work people
- G07C1/20—Checking timed patrols, e.g. of watchman
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P90/00—Enabling technologies with a potential contribution to greenhouse gas [GHG] emissions mitigation
- Y02P90/02—Total factory control, e.g. smart factories, flexible manufacturing systems [FMS] or integrated manufacturing systems [IMS]
Abstract
The invention provides a loading and unloading process control system based on 2.4G radio frequency identification and a single chip microcomputer, which comprises the following steps: the system comprises a factory server, a loading point single chip microcomputer chip and an unloading point single chip microcomputer chip; the intelligent terminal equipment of the excavator is used for providing a vehicle identification function, changing and identifying a vehicle channel function, having a real-time synchronization function and uploading data to the factory server; the intelligent terminal equipment of the truck vehicle is used for receiving the vehicle identification signal of the excavator and uploading the unique vehicle identification to the excavator; the intelligent terminal of the unloading point scans the unloading vehicles through the RFID receiver and uploads data to the factory server so as to verify the unloading function of the vehicles; and 4GDTU terminals for implementing the network transmission function of data.
Description
Technical Field
The invention relates to the technical field of control systems, in particular to a loading and unloading flow control system based on 2.4G radio frequency identification and a single chip microcomputer.
Background
In the existing large-scale production and manufacturing industry mine factory, mining minerals in a mining area needs to control loading and unloading places in real time to ensure the quality of the minerals, and needs to acquire various loading and unloading information in real time and monitor task information of vehicles and excavators.
The existing technical scheme mainly comprises the following two types:
(1) manual mode
The mode means that the package is manually operated, and the information and the state of each vehicle are recorded. The freight drivers need to carry out loading and unloading operations by tasks.
However, the main defects and disadvantages of the above modes are: the loading and unloading are both manually operated, and the driver needs to rely on memory to perform loading and unloading operation. The end result is a manual record that is prone to errors and there may be factors that are considered to deliberately alter the shipment record.
(2) Factory mine mode
In the mode, the IC card and the FRID card are adopted to enter the business flow transfer, the FRID card is used for carrying out some control at the pound room, and other loading and unloading processes still need manual intervention or no control.
However, the main defects and shortcomings of the above modes are as follows: the hardware integration level is not high, and the early-stage deployment or later-stage maintenance cost is high; the compatible service mode is single, and the requirements of various scenes such as task switching and the like cannot be met.
Disclosure of Invention
The object of the present invention is to solve at least one of the technical drawbacks mentioned.
Therefore, the invention aims to provide a loading and unloading flow control system based on 2.4G radio frequency identification and a single chip microcomputer.
In order to achieve the above object, an embodiment of the present invention provides a loading and unloading process control system based on 2.4G radio frequency identification and a single chip, including:
the system comprises a factory server, a loading point single chip microcomputer chip and an unloading point single chip microcomputer chip;
the intelligent terminal equipment of the excavator is used for providing a vehicle identification function, changing and identifying a vehicle channel function, having a real-time synchronization function and uploading data to the factory server;
the intelligent terminal equipment of the truck vehicle is used for receiving the vehicle identification signal of the excavator and uploading the unique vehicle identification to the excavator;
the intelligent terminal of the unloading point scans the unloading vehicles through the RFID receiver and uploads data to the factory server so as to verify the unloading function of the vehicles;
and the 4G DTU terminal is used for realizing the network transmission function of the data.
Further, the truck vehicle intelligent terminal device receives the digging machine vehicle identification signal and uploads the vehicle unique identification to the digging machine, and the following modes are adopted: RFID identification mode, 2.4G identification mode.
Further, in the present invention,
(1) RFID identification mode
The method comprises the steps that an RFID tag is bound with a vehicle and is installed on the vehicle, and information of the vehicle is identified and verified through a unique code in the RFID tag;
(2)2.4G recognition mode
And the 2.4G module equipment is bound with a vehicle and is installed on the vehicle, and the information of the vehicle is identified and verified by utilizing the unique code in the 2.4G module.
And furthermore, the method is used for changing channels at loading points, identifying unique vehicles and preventing the interference of a plurality of excavators.
Further, the serial port communication mode adopts two communication modes of RS485 and RS 232.
Furthermore, the system has a network heartbeat function so as to detect whether the equipment is on line or not in real time.
Further, still include: and the display screen is used for displaying vehicle information and unloading prompt information of the unloading point.
Further, still include: and the external memory is used for storing the equipment parameters and the factory information in real time in a file tree mode.
Furthermore, a UCOS system is operated in real time, and CJSON and LWIP systems are transplanted.
Further, automatically acquiring the RFID information of the vehicle and sending the information to the single chip microcomputer, wherein the single chip microcomputer selects to read the RFID information, namely, the single chip microcomputer is connected with an unattended server to acquire license plate number information; acquiring license plate number information, calling an intelligent mine unloading verification interface by the single chip microcomputer, allowing unloading or not, and sending a prompt; the loading point is bound with the vehicle through the uniqueness of the 2.4G radio frequency module, the bound vehicle information is obtained through corresponding 2.4G vehicle reading equipment, data are uploaded to the server through verification, and the server returns the result to the vehicle equipment through the mobile phone.
According to the loading and unloading process control system based on 2.4G radio frequency identification and the single chip microcomputer, the unloading point is bound with a vehicle through the uniqueness of the radio frequency tag, the bound vehicle information is obtained through corresponding RFID tag reading equipment, then the license plate number of the vehicle is obtained through verification by calling an unattended server through a single chip microcomputer program, an intelligent mine server is called through the license plate number, whether unloading is allowed or not is verified, and the unloading is displayed on an LED screen (traffic light). The loading point is bound with the vehicle through the uniqueness of the 2.4G radio frequency module, the bound vehicle information is obtained through corresponding 2.4G vehicle reading equipment, data are uploaded to the server through verification, the server returns the result to the vehicle equipment through the mobile phone, the processes are all automatically completed through the single chip microcomputer, and personnel are not needed to participate.
The invention can reduce the deployment cost and the maintenance cost of a factory area, improve the stability and the reliability of the system, simultaneously monitor whether the loading point equipment and the unloading point equipment are on line or not in real time, and also can monitor whether the loading and unloading of the vehicle are normal or not, thereby meeting different requirements of more customers. Some factory unloading points are arranged in a factory building and provided with one or two lanes, an RFID detection mode is provided, while some factory unloading points are arranged outside the factory building, the installation of an RFID scanning device is inconvenient, a plurality of vehicles are gathered, and a 2.4G module scanning mode is provided. And for the 4G signals near the loading points of some factories, which are extremely weak, a signal uploading mode is developed. Different requirements of more customers are met.
Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.
Drawings
The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:
FIG. 1 is a schematic diagram of a loading and unloading process control system based on 2.4G radio frequency identification and a single chip according to an embodiment of the invention;
FIG. 2 is a loading flow chart of a loading and unloading flow control system based on 2.4G radio frequency identification and a single chip microcomputer according to an embodiment of the invention;
fig. 3 is a unloading flow chart of the loading and unloading flow control system based on 2.4G radio frequency identification and a single chip microcomputer according to the embodiment of the invention.
Detailed Description
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are illustrative and intended to be illustrative of the invention and are not to be construed as limiting the invention.
The system aims to reduce the deployment cost and the maintenance cost of a factory area, improve the stability and the reliability of the system, simultaneously can be compatible with multiple business modes, and meets different requirements of more customers. The invention provides a loading and unloading process control system based on 2.4G radio frequency identification and a single chip microcomputer, which specifically comprises an RFID (radio frequency identification device) label, a vehicle 2.4G device, the single chip microcomputer, a process control part, a prompt part, a verification part, a vehicle detection part and a 4G DTU part. The single chip hardware system is electrically connected with the intelligent mine server.
As shown in fig. 1, the loading and unloading process control system based on 2.4G radio frequency identification and a single chip microcomputer according to the embodiment of the present invention includes: the system comprises a factory server, a loading point single chip microcomputer chip and an unloading point single chip microcomputer chip.
The intelligent terminal equipment for digging the machine is used for providing a vehicle identification function, changing and identifying a vehicle channel function, having a real-time setting function and uploading data to a factory server.
And the intelligent terminal equipment of the truck vehicle is used for receiving the vehicle identification signal of the excavator and uploading the unique vehicle identification to the excavator.
The intelligent terminal equipment of the truck vehicle receives the vehicle identification signal of the excavator and uploads the unique vehicle identification to the excavator, and the following modes are adopted: RFID identification mode, 2.4G identification mode.
(1) RFID identification mode
The RFID tag is bound with the vehicle and is installed on the vehicle, and the unique code in the RFID tag is used for identifying and verifying the information of the vehicle;
(2)2.4G recognition mode
The 2.4G module equipment is bound with the vehicle and is installed on the vehicle, and the information of the vehicle is identified and verified by using the unique code in the 2.4G module.
And the intelligent terminal of the unloading point scans the unloading vehicles through the RFID receiver and uploads the data to the factory server so as to verify the unloading function of the vehicles.
And the 4G DTU terminal is used for realizing the network transmission function of the data. In addition, the invention also adopts an Ethernet connection server.
The invention can collect the equipment information of the appointed vehicle, process the loading requirement of the equipment, monitor the self running condition and report the self running condition to the server.
A loading and unloading process control system based on 2.4G radio frequency identification and a single chip microcomputer is used for changing channels at loading points, identifying unique vehicles and preventing interference of a plurality of vehicles when digging a machine. In addition, the system also has a remote upgrading function, so that the subsequent program maintenance is convenient; the system has a network heartbeat function, and is convenient for detecting whether the equipment is on line or not in real time.
In the embodiment of the invention, the serial port communication mode adopts two communication modes of RS485 and RS 232.
In the embodiment of the invention, the loading and unloading process control system based on 2.4G radio frequency identification and a single chip microcomputer further comprises: a display screen and an external memory. The display screen is used for displaying vehicle information and unloading prompt information of the unloading point. The external memory is used for storing the equipment parameters and the factory information in real time in a file tree mode.
In the embodiment of the invention, the loading and unloading process control system based on 2.4G radio frequency identification and a single chip microcomputer adopts a UCOS system operated in real time and transplants CJSON and LWIP systems.
As shown in fig. 2 and 3, the overall work flow of the loading and unloading flow control system based on 2.4G radio frequency identification and a single chip microcomputer of the present invention specifically includes:
when the intelligent control system detects that the vehicle runs to the system area, the RFID information of the vehicle is automatically acquired and sent to the single chip microcomputer, and the single chip microcomputer can selectively read the RFID information, namely, the single chip microcomputer is connected with an unattended server to acquire license plate number information. The intelligent mine unloading verification method comprises the steps that a license plate number is obtained, the single chip microcomputer calls an intelligent mine unloading verification interface, unloading is allowed or not allowed, and the LED large screen (traffic light) informs that one or two vehicles are allowed to unload at the same time. The loading point is bound with the vehicle through the uniqueness of the 2.4G radio frequency module, the bound vehicle information is obtained through corresponding 2.4G vehicle reading equipment, data are uploaded to the server through verification, the server returns the result to the vehicle equipment through a mobile phone, and manual intervention is not needed.
The vehicle channel changing scheme is to provide a situation of preventing signal interference between the digging machines under the condition that a plurality of digging machines are close to each other according to the actual situation of a factory. To avoid collisions. We default to only allowing one vehicle per channel. For this purpose the excavator is queried for each vehicle. The method of continuously changing channels is adopted. Because each channel can not be communicated with each other, the communication time is extremely short, the excavator identifiers for each excavator are different, and when different excavators are positioned on the same channel, the excavator receiving signals of other excavators can be delayed for three seconds, so that collision is avoided. This enables one-to-one condition detection of whether the vehicle is nearby. Considering that the vehicle and the excavator both move continuously, and the distance and the angle are not fixed, the signal accuracy is ensured by adopting a three-way handshake communication mode of the excavator and the vehicle.
According to the loading and unloading process control system based on 2.4G radio frequency identification and the single chip microcomputer, the unloading point is bound with a vehicle through the uniqueness of the radio frequency tag, the bound vehicle information is obtained through corresponding RFID tag reading equipment, then the license plate number of the vehicle is obtained through verification by calling an unattended server through a single chip microcomputer program, an intelligent mine server is called through the license plate number, whether unloading is allowed or not is verified, and the unloading is displayed on an LED screen (traffic light). It is specifically noted that each vehicle contains a unique RFID tag and the pit scans the vehicle by the RFID scanning device at a frequency of 20 times per second, five vehicles being scanned simultaneously at a time. The RFID information of the vehicle is uploaded to the unloading point equipment through 232, the unloading point calls an unattended server through an HTTP (hyper text transport protocol) POST (POST position) method, the license plate number of the vehicle is inquired, and whether the vehicle is a factory vehicle or not is verified. If the vehicle is the factory vehicle, the vehicle information is called to an intelligent mine server through a POST protocol GET method, whether the vehicle has a task or not is verified, information about unloading at the unloading point is allowed or not is verified, the information is displayed on an LED screen (traffic light) to remind a driver of unloading or leaving, after the information is displayed, in a period of the average time of unloading, 20 times of average time are continuously called, when the number of times of detecting the vehicle is more than 20 times of average time, three times of average time, the vehicle is uploaded to unload at the unloading point, and otherwise, the vehicle returns to an idle state. The uniqueness that the loading point passes through 2.4G radio frequency module, the blue pilot lamp of radio frequency module can be the normal bright state earlier, promptly sets up the state, and the setting protocol is as follows: firstly, in a normally bright state, namely in a setting state, the module sets a channel according to hardware, and the host sends: 0xaa +0x5a + module ID + networking ID (ID must be the same) +0x00+ RF transmission power +0x00+ serial port rate +0x00+ RF channel selection +0x00+0x00+0x12 (byte length) +0x00+ check byte, and check byte is the byte accumulated by all parameters, these data fields are sent, the module response is successful, by way of protocol one question and one answer, that is, by way of "handshake" communication, for example: the host sends: AA5a0000000000000004000a000000120024, then the returned data: AA5B0521000000000004000a 00000012004B. This is successful in setting up the channel. Note that: it is recommended that the channel not use multiples of 16.
Each vehicle is set to a different channel, and when the blue indicator light of the 2.4G radio frequency module of the excavator turns into a flashing state, the state is a polling channel state. When a vehicle comes and a channel of the vehicle is polled, the blue indicator light is in a short one-to-two second off state (in a three-way "handshake"), namely the excavator device scans the vehicle. The typical value of the 2.4G rf module read time is 5ms and the write data time is 330 ms. The method comprises the steps that bound vehicle information is obtained through corresponding 2.4G vehicle reading equipment, then loading verification is conducted, data are uploaded to a server, the server returns a result to the vehicle equipment through a mobile phone, when a mobile signal is poor or no data are returned from the server, a loading point single chip microcomputer transmits loading time and loading excavating machines to vehicles through a 2.4G module, when the vehicles pass through an information uploading intelligent terminal, the information is uploaded to an intelligent terminal polling channel, when the vehicles with the loading information are identified, the loading information is read from the vehicle equipment and uploaded to the server, whether the loading time exists is detected, whether the loading excavating machines are correct or not is judged, if the loading excavating machines are incorrect, exception processing is conducted, the loading information is not allowed to pass through, and the loading excavating machines are required to be approved and then allowed to pass through. The processes are all automatically completed through the single chip microcomputer, personnel participation is not needed, and manual intervention is not needed.
According to the loading and unloading process control system based on 2.4G radio frequency identification and the single chip microcomputer, the unloading point is bound with a vehicle through the uniqueness of the radio frequency tag, the bound vehicle information is obtained through corresponding RFID tag reading equipment, then the license plate number of the vehicle is obtained through verification by calling an unattended server through a single chip microcomputer program, an intelligent mine server is called through the license plate number, whether unloading is allowed or not is verified, and the unloading is displayed on an LED screen (traffic light). The loading point is bound with the vehicle through the uniqueness of the 2.4G radio frequency module, the bound vehicle information is obtained through corresponding 2.4G vehicle reading equipment, data are uploaded to the server through verification, the server returns the result to the vehicle equipment through the mobile phone, the processes are all automatically completed through the single chip microcomputer, and personnel are not needed to participate.
The invention can reduce the deployment cost and the maintenance cost of a factory area, improve the stability and the reliability of the system, simultaneously monitor whether the loading point equipment and the unloading point equipment are on line or not in real time, and also can monitor whether the loading and unloading of the vehicle are normal or not, thereby meeting different requirements of more customers. Some factory unloading points are arranged in a factory building and provided with one or two lanes, an RFID detection mode is provided, while some factory unloading points are arranged outside the factory building, the installation of an RFID scanning device is inconvenient, a plurality of vehicles are gathered, and a 2.4G module scanning mode is provided. And for the fact that 4G signals near some factory loading points are extremely weak, a signal uploading mode is deduced. Different requirements of more customers are met.
In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention, and that variations, modifications, substitutions and alterations can be made in the above embodiments by those of ordinary skill in the art without departing from the principle and spirit of the present invention. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (10)
1. A loading and unloading process control system based on 2.4G radio frequency identification and a single chip microcomputer is characterized by comprising a factory server, a loading point single chip microcomputer chip and an unloading point single chip microcomputer chip;
the intelligent terminal equipment of the excavator is used for providing a vehicle identification function, changing and identifying a vehicle channel function, having a real-time synchronization function and uploading data to the factory server;
the intelligent terminal equipment of the truck vehicle is used for receiving the vehicle identification signal of the excavator and uploading the unique vehicle identification to the excavator;
the intelligent terminal of the unloading point scans the unloading vehicles through the RFID receiver and uploads data to the factory server so as to verify the unloading function of the vehicles;
and the 4G DTU terminal is used for realizing the network transmission function of the data.
2. The 2.4G radio frequency identification and single chip microcomputer based loading and unloading process control system of claim 1, wherein the truck vehicle intelligent terminal device provides for receiving a digging machine vehicle identification signal and uploading a vehicle unique identifier to the digging machine in the following mode: RFID identification mode, 2.4G identification mode.
3. The system of claim 2, wherein the control system is based on 2.4G radio frequency identification and single chip microcomputer,
(1) RFID identification mode
The method comprises the steps that an RFID tag is bound with a vehicle and is installed on the vehicle, and information of the vehicle is identified and verified through a unique code in the RFID tag;
(2)2.4G recognition mode
And the 2.4G module equipment is bound with a vehicle and is installed on the vehicle, and the information of the vehicle is identified and verified by utilizing the unique code in the 2.4G module.
4. The system of claim 1, wherein the system is configured to switch channels at a loading point, identify a unique vehicle, and prevent interference from multiple excavators.
5. The system for controlling the loading and unloading process based on 2.4G radio frequency identification and a single chip microcomputer according to claim 1, wherein the serial port communication mode adopts two communication modes of RS485 and RS 232.
6. The system of claim 1, wherein the system has a network heartbeat function to detect whether the device is on-line in real time.
7. The loading and unloading process control system based on 2.4G radio frequency identification and single chip microcomputer according to claim 1, further comprising: and the display screen is used for displaying vehicle information and unloading prompt information of the unloading point.
8. The loading and unloading process control system based on 2.4G radio frequency identification and single chip microcomputer according to claim 1, further comprising: and the external memory is used for storing the equipment parameters and the factory information in real time in a file tree mode.
9. The system of claim 1, wherein a real-time UCOS system is used and CJSON and LWIP systems are transplanted.
10. The loading and unloading process control system based on 2.4G radio frequency identification and the single chip microcomputer according to claim 3, wherein RFID information of a vehicle is automatically acquired and sent to the single chip microcomputer, and the single chip microcomputer selects to read the RFID information, namely, is connected with an unattended server to acquire license plate number information; acquiring license plate number information, calling an intelligent mine unloading verification interface by the single chip microcomputer, allowing unloading or not, and sending a prompt; the loading point is bound with the vehicle through the uniqueness of the 2.4G radio frequency module, the bound vehicle information is obtained through corresponding 2.4G vehicle reading equipment, data are uploaded to the server through verification, and the server returns the result to the vehicle equipment through the mobile phone.
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| CN117585481A (en) * | 2023-12-07 | 2024-02-23 | 天瑞集团信息科技有限公司 | Mining area material loading and unloading coordinated control system based on 5G communication |
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