Communication system of mining equipment

Abstract

The invention provides a communication system of mining equipment. The communication system comprises terminal equipment and a communication adapter plate, a set application program is loaded on the terminal equipment, and the set application program is configured to obtain data to be sent, convert the data to be sent into a plurality of data frames in a CAN frame format, and send the data frames to the communication adapter plate; the communication adapter plate is provided with a CAN bus interface and a wireless communication device, and the communication adapter plate is configured to obtain data weight information of the to-be-sent data and equipment weight information of mining equipment corresponding to the to-be-sent data after receiving the to-be-sent data from the terminal equipment; and determining a sending sequence of the to-be-sent data according to the data weight information and the equipment weight information, and sending the to-be-sent data to the mining equipment according to the sending sequence. According to the technical scheme provided by the invention, the working efficiency of sending data from the terminal equipment to the mining equipment can be improved, and the workload of the communication switching equipment is reduced.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of mining equipment, in particular to a communication system of mining equipment. BACKGROUND

[0002] In the existing fully mechanized coal mining face, various mining equipment are arranged, for example, a hydraulic support controller is used to intelligently and automatically control the hydraulic support. In order to reduce the wiring cost and structural complexity of the mining equipment and improve the real-time performance and certainty of the communication of the mining equipment, the current mining equipment is connected with other equipment in communication through a CAN bus to interact information with other equipment. With the rapid development of science and technology, smart terminal devices such as mobile phones and tablet computers have been widely used in many industries, but the smart terminal devices use WIFI modules and other wireless communication devices, which cannot be directly connected with the mining equipment, so a communication adapter is needed to convert the data received from the smart terminal device into data in a format suitable for the CAN bus and send it to the mining equipment.

[0003] The communication adapter needs a certain time to convert the data received from the smart terminal device into data in a format suitable for the CAN bus, and in order to ensure the accuracy of data conversion, a specific conversion program needs to be set, which will reduce the work efficiency of data transmission and increase the workload of the communication adapter. SUMMARY

[0004] The present application provides a communication system of mining equipment for improving the work efficiency of the terminal device in sending data to the mining equipment and reducing the workload of the communication adapter.

[0005] Specifically, the present application provides a communication system of mining equipment, comprising a terminal device and a communication adapter board. The terminal device is loaded with a setting application, and the setting application is configured to: obtain to-be-sent data, convert the to-be-sent data into a plurality of data frames in a CAN frame format, and send the data frames to the communication adapter board. The communication adapter board is provided with a CAN bus interface and a wireless communication device, wherein the wireless communication device is wirelessly connected with the mobile communication device, the CAN bus interface is used to connect the CAN bus to communicate with the mining equipment through the CAN bus, and the communication adapter board is configured to: After receiving the to-be-sent data from the terminal device, a preset weight routing table is obtained; According to the routing weight table, data weight information of the to-be-sent data and device weight information of the mining equipment corresponding to the to-be-sent data are obtained; According to the data weight information and the device weight information, a sending sequence of the to-be-sent data is acquired, and the to-be-sent data is sent to the mining device according to the sending sequence. Device data of the mining device is acquired from the CAN bus interface, and the device data is sent to the mobile terminal.

[0006] Further, the terminal device is provided with an identity certificate, a dynamic password is acquired after the first communication connection with the communication adapter board, and the identity certificate and the dynamic password are sent to the communication adapter board. After receiving the identity certificate and the dynamic password, the communication adapter board performs identity authentication on the terminal device according to the identity certificate and the dynamic password.

[0007] Further, the terminal device sets a frame sequence number of each data frame after converting the format of the to-be-sent data into a plurality of data frames. After receiving the to-be-sent data, the communication adapter board checks whether there is a missing data frame according to the frame sequence number, and sends a frame loss information to the terminal device if there is a missing data frame. After receiving the frame loss information, the terminal device re-sends the to-be-sent data to the communication adapter board.

[0008] Further, the communication adapter board returns an acknowledgement frame to the terminal device after receiving the to-be-sent data from the terminal device. After sending the to-be-sent data, if the terminal device does not receive the acknowledgement frame within a set time period, the terminal device re-sends the to-be-sent data to the communication adapter board.

[0009] Further, the terminal device encrypts the to-be-sent data before converting the to-be-sent data into data frames in the CAN frame format; and the communication adapter board decrypts the to-be-sent data after receiving the to-be-sent data. The communication adapter board encrypts the device data before sending the device data to the terminal device; and the terminal device decrypts the device data after receiving the device data.

[0010] Further, the mobile terminal periodically sends a plurality of to-be-sent data to the communication adapter board after acquiring the plurality of to-be-sent data.

[0011] Further, the set application program is further used to acquire identity information of a user, and perform identity authentication and operation authorization on the user according to the identity information.

[0012] Further, the terminal device acquires device state information of the mining equipment according to the device data after receiving the device data, and generates a device log and / or displays a state information interface of the mining equipment according to the device state information.

[0013] Further, the communication adapter board is further used for connecting a hydraulic support controller of the mining equipment, and sends the to-be-sent data to the hydraulic support controller after receiving the to-be-sent data.

[0014] Further, the communication adapter board is provided with a plug-in interface, which is used for plug-in connection with the hydraulic support controller.

[0015] In the technical scheme of the present application, the terminal device converts the to-be-sent data into a data frame in CAN frame format before sending the to-be-sent data to the communication adapter board, so that the communication adapter board does not need to convert the to-be-sent data after receiving the to-be-sent data, and can directly send the to-be-sent data to the mining equipment through the CAN bus, thereby improving the working efficiency of data forwarding. In addition, the present application determines the sending order of the to-be-sent data according to the data weight information of the to-be-sent data and the device weight information of the mining equipment corresponding to the to-be-sent data, so as to ensure that important data can be sent to important mining equipment in priority, thereby improving the reliability of the control of the mining equipment.

[0016] The above and other objects, advantages and features of the present application will become more apparent from the following detailed description of some embodiments thereof, when taken in conjunction with the accompanying drawings. BRIEF DESCRIPTION OF DRAWINGS

[0017] Some specific embodiments of the present application will be described in detail below with reference to the accompanying drawings, in an exemplary and non-limiting manner. The same reference numerals in the drawings denote the same or similar components or parts. It should be understood by those skilled in the art that the drawings are not necessarily drawn to scale. In the drawings: Figure 1 is a structural schematic diagram of a communication system of a mining equipment according to an embodiment of the present application; Figure 2 is a schematic flow chart of data forwarding of a communication adapter board in a communication system according to an embodiment of the present application. DETAILED DESCRIPTION

[0018] In the description of the present embodiments, the description of the terms "one embodiment", "some embodiments", "exemplary embodiment", "example", "specific example", or "some examples" etc. means that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present application. In the present specification, the exemplary description of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any suitable manner in one or more embodiments or examples.

[0019] Referring to Figure 1 , Figure 1 Fig. 1 shows a schematic diagram of a communication system of a mining equipment in an embodiment of the present application, which comprises a terminal device 10 and a communication adapter board 20. The terminal device 10 can be a mobile smart terminal device such as a mobile phone or a tablet computer. The communication adapter board 20 is provided with a wireless communication device 21 and a CAN bus interface 22. The wireless communication device 21 is wirelessly connected with the terminal device 10, and the CAN bus interface 22 is used to connect a CAN bus to communicate with the mining equipment through the CAN bus.

[0020] The terminal device 10 in the present embodiment is loaded with a setting application configured to convert the data to be sent into a plurality of data frames in CAN frame format after obtaining the data to be sent, and send the data frames to the communication adapter board 20.

[0021] Specifically, the setting application on the terminal device 10 can download the data to be sent from a cloud server, or read a data file stored on the terminal device 10 and take the data file as the data to be sent. The setting application first packages the data to be sent according to 1024 bytes to obtain a plurality of data packets, and then disassembles each data packet into a data frame in CAN frame format of 7 bytes, and sends the data frame to the communication adapter board 20 through the wireless communication connection.

[0022] The wireless communication device 21 on the communication adapter board 20 can be a WIFI module provided with an integrated MQTT (Message Queuing Telemetry Transport) communication protocol, and the WIFI module and the terminal device 10 interact information through the MQTT communication protocol. The CAN bus interface 22 can be a TWAI (Two-Wire Automotive Interface) interface of an ESP series microcontroller, which supports the CAN bus communication protocol to interact information with the mining equipment through the CAN bus communication protocol.

[0023] The WIFI module serving as the wireless communication device 21 in the embodiment is connected with the ESP microcontroller of the CAN bus interface 22 to interact with the CAN bus interface 22. Specifically, after receiving the to-be-sent data from the terminal device 10, the wireless communication device 21 transmits the to-be-sent data to the CAN bus interface 22, and since the to-be-sent data has been converted into a data frame in the CAN frame format, the CAN bus interface 22 can directly transmit the to-be-sent data to the mining equipment. Correspondingly, after receiving the equipment data of the mining equipment, the CAN bus interface 22 transmits the equipment data to the wireless communication device 21, and the wireless communication device 21 transmits the equipment data to the terminal device 10, and since the equipment data is a data frame in the CAN frame format, the terminal device 10 converts the format of the equipment data into file data that can be read after receiving the equipment data.

[0024] The microcontroller of the CAN bus interface 22 on the communication conversion board 20 in the embodiment is provided with a routing weight table, and the routing weight table stores the equipment weight information of each mining equipment and the data weight information of a plurality of preset data types. The user can determine the equipment weight information according to the importance of each mining equipment in the working process in advance, for example, the importance of the mining equipment with high frequency of use is greater than the importance of the mining equipment with low frequency of use, and store the equipment weight information in the routing weight table. The user can also obtain the priority of each preset data type in advance, for example, the priority of the control instruction is greater than the priority of the equipment attribute data, and the priority of the safety control instruction is greater than the priority of the production instruction, etc.; then determine the data weight information of each preset data type according to the priority, and store the data weight information in the routing weight table.

[0025] In the embodiment, the microcontroller of the CAN bus interface 22 is configured to perform the data forwarding method as shown in Figure 2 The method comprises the following steps: Step S101, obtaining the preset data type of the to-be-sent data and the corresponding mining equipment, and querying the routing weight table according to the preset data type and the mining equipment to obtain the data weight information and the equipment weight information of the to-be-sent data; Step S102, determining the sending sequence of the to-be-sent data according to the data weight information and the equipment weight information of the to-be-sent data, and sending the to-be-sent data to the mining equipment according to the sending sequence; Step S103, after receiving the equipment data of the mining equipment, transmitting the equipment data to the wireless communication device.

[0026] For example, the CAN bus interface 22 can sort the multiple to-be-sent data in descending order of the data weight information in the case that the multiple to-be-sent data needs to be sent to the mining equipment; if the data weight information of the multiple to-be-sent data is the same, the device weight information of the multiple to-be-sent data is sorted, so as to complete the sorting of the multiple to-be-sent data, and the order of the to-be-sent data in the sorting is the sending order of the to-be-sent data.

[0027] According to the above content, the terminal device in the embodiment converts the to-be-sent data into a data frame in CAN frame format before sending the to-be-sent data to the communication adapter board, so that the communication adapter board does not need to convert the to-be-sent data after receiving the to-be-sent data, and can directly send the to-be-sent data to the mining equipment through the CAN bus, so as to improve the working efficiency of data forwarding. In the embodiment, the sending order of the to-be-sent data is determined according to the data weight information of the to-be-sent data and the device weight information of the mining equipment corresponding to the to-be-sent data, so as to ensure that important data can be sent to important mining equipment in priority, thereby improving the reliability of the control of the mining equipment.

[0028] In some embodiments of the application, the terminal device 10 is provided with an identity certificate, and the terminal device 10 acquires a dynamic password after first communicating with the communication adapter board 20, and sends the identity certificate and the dynamic password to the communication adapter board 20.

[0029] Correspondingly, the communication adapter board 20 performs identity authentication on the terminal device 10 according to the identity certificate and the dynamic password after receiving the identity certificate and the dynamic password of the terminal device 10.

[0030] Specifically, the wireless communication device 21 of the terminal device 10 and the communication adapter board 20 is provided with the same application program, which can automatically generate a dynamic password according to the current time; after first communicating with the wireless communication device 21 of the communication adapter board 20, the terminal device 10 sends its own identity certificate, the generated dynamic password, and the time point of generating the dynamic password to the wireless communication device 21; after receiving the dynamic password and the identity certificate, the wireless communication device 21 judges whether the identity certificate meets the preset condition, for example, whether the type of the identity certificate is the set certificate type, and whether the dynamic password is the same as the dynamic password generated by itself; if yes, it is determined that the terminal device 10 passes the identity authentication, and information interaction with the terminal device 10 is allowed; if not, information interaction with the terminal device 10 is not allowed.

[0031] In the embodiment, the terminal device 10 performs identity authentication on the terminal device 10 by means of the identity certificate and the dynamic password of the terminal device 10 in the process of connecting the communication adapter 10 for the first time, so as to ensure that the communication adapter 20 is open only to the terminal device 10 with a legal identity, and improve the safety of the mining equipment.

[0032] In some embodiments of the present application, the terminal device 10 sets the frame sequence number of each data frame after converting the format of the data to be generated into a plurality of data frames. After receiving the data to be sent from the terminal device 10, the communication adapter 20 checks whether there is a missing data frame according to the frame sequence number of each data frame in the data to be sent; if so, it sends a frame loss information to the terminal device 10. After receiving the frame loss information from the communication adapter 20, the terminal device 10 re-sends the data to be sent to the communication adapter 20.

[0033] In the embodiment, the terminal device 10 sets the frame sequence number of each data frame after converting the format of the data to be generated into a plurality of data frames, which can enable the communication adapter 20 to determine whether there is a frame loss in the transmission process of the data to be sent by verifying the frame sequence number, and the terminal device 10 re-transmits the data to be sent in the case of frame loss, thereby improving the reliability of the transmission of the data to be sent.

[0034] In some embodiments of the present application, the communication adapter 20 returns an acknowledgement frame to the terminal device 10 after receiving the data to be sent from the terminal device 10. Correspondingly, after sending the data to be sent to the communication adapter 20, the terminal device 10 re-sends the data to be sent to the communication adapter 20 if it does not receive the acknowledgement frame from the communication adapter 20 within a set time period.

[0035] In the embodiment, the communication adapter 20 returns an acknowledgement frame to the terminal device 10 after receiving the data to be sent from the terminal device 10, and the terminal device 10 determines that the data to be sent has been sent to the communication adapter 20 after receiving the acknowledgement frame; otherwise, if the terminal device 10 does not receive the acknowledgement frame for a long time, it can be determined that the data to be sent has not been sent to the communication adapter 20 due to communication failure or the like, and therefore the terminal device 10 re-sends the data to be sent to the communication adapter 20, thereby improving the reliability of the transmission of the data to be sent.

[0036] In some embodiments of the present application, the terminal device 10 encrypts the data to be sent before sending it to the communication adapter 20; correspondingly, the communication adapter 20 decrypts the data to be sent after receiving it.

[0037] Specifically, the communication adapter 20 encrypts the device data before sending the device data to the terminal device 10; correspondingly, the terminal device 10 decrypts the device data after receiving the device data from the communication adapter 20.

[0038] In this embodiment, the terminal device 10 sends the to-be-sent data to the communication adapter 20, and the terminal device 10 encrypts the to-be-sent data by using an encryption algorithm such as AES or DES, that is, the same key is set on the terminal device 10 and the wireless communication module 21, the terminal device 10 first encrypts the to-be-sent data by using the key to generate ciphertext, and sends the ciphertext to the wireless communication module 21; the wireless communication module 21 decrypts the ciphertext by using the key to obtain the to-be-sent data after receiving the ciphertext.

[0039] The terminal device 10 encrypts the to-be-sent data before sending the to-be-sent data to the communication adapter 20; correspondingly, the communication adapter 20 decrypts the to-be-sent data after receiving the to-be-sent data In this embodiment, the terminal device 10 encrypts the data transmitted in the process of data interaction with the communication adapter 20, which can ensure the security of information interaction between the terminal device 10 and the communication adapter 20.

[0040] In some embodiments of the present application, the mobile terminal 10 periodically sends a plurality of to-be-sent data to the communication adapter 20 when the mobile terminal 10 needs to send the plurality of to-be-sent data to the communication adapter 20.

[0041] Specifically, the mobile terminal 10 sends one to-be-sent data every set period after obtaining the plurality of to-be-sent data, and converts the to-be-sent data into a data frame in CAN frame format in the process of sending each to-be-sent data.

[0042] In this embodiment, the mobile terminal 10 sends one data frame every preset period in the process of sending the to-be-sent data to the communication adapter 20, which can ensure the reliability of each data frame.

[0043] In some embodiments of the present application, the set application program on the terminal device 10 is further used to obtain identity information of a user, and performs identity authentication and operation authorization on the user according to the identity information.

[0044] Specifically, the identity information of the user includes a user name and a user password, wherein the user password can be a digital password or a biological password, such as a face book and a fingerprint. During the process of logging in the setting application, the user can input the user name and the user password into the setting application. After receiving the user name and the user password of the user, the setting application first judges whether the user name of the user has been stored; if not, it can be determined that the user is not a registered user and the user is not allowed to log in the setting application; if yes, it is determined that the user is a registered user, and further judges whether the user name and the user password of the user match; if yes, the user is allowed to log in the setting application; if not, the user is not allowed to log in the setting application.

[0045] After the user logs in the setting application, the power of the user can be obtained according to the identity information of the user to authorize the user; for example, if the user is a production personnel, the power of the user includes operating the mining equipment, and the type of the mining equipment operated by the user is determined according to the rank of the user; if the user is a maintenance personnel, the power of the user includes debugging the equipment.

[0046] In the embodiment, the terminal device 10 can authenticate the user and authorize the operation of the user according to the identity information of the user, which not only ensures the security of the terminal device 10, but also ensures that the operation items of the user exceed the scope of the power of the user, so as to further ensure the safety and reliability of the mining equipment.

[0047] In some embodiments of the present application, after receiving the device data, the terminal device 10 obtains the device state information of the mining equipment according to the device data, and generates a device log according to the device state information, or displays a state information interface of the mining equipment.

[0048] For example, after receiving the device data of the mining equipment, the terminal device 10 identifies the device data to obtain the running state of each mining equipment, that is, each mining equipment obtains the device state information, and stores the device state information according to the device state information, so as to generate a device log of the mining equipment. Alternatively, in the embodiment, a state display interface is set on the setting application, and after obtaining the device state information of the mining equipment, the state information is displayed on the state display interface to display a state information interface of the mining equipment.

[0049] In the embodiment, after receiving the device data, the device log is generated according to the device data or the state information interface of the mining equipment is displayed, which can improve the convenience of the user to view the device state information of the mining equipment, so as to facilitate the user to observe and timely judge whether the mining equipment has a state abnormality.

[0050] In some embodiments of the present application, the communication adapter 20 is also used to connect the hydraulic support controller of the mining equipment, and after receiving the data to be sent from the terminal device 10, the data to be sent is sent to the hydraulic support controller.

[0051] In the embodiment, the communication adapter 20 connects the hydraulic support controller, so that the hydraulic support controller can receive the data sent by the terminal device 10 to the mining equipment, so that the hydraulic support controller can obtain the control information of the mining equipment according to the data.

[0052] In some embodiments of the present application, the communication adapter 20 is provided with a plug-in interface, and is connected with the hydraulic support controller by the plug-in interface. In the embodiment, the communication adapter 20 is provided with the plug-in interface, and can be connected with the hydraulic support controller by the plug-in interface, so that the connection line between the communication adapter 20 and the hydraulic support controller can be reduced, and the structural complexity of the communication system can be reduced.

[0053] At this point, those skilled in the art should recognize that although the present application has been shown and described in detail in the above embodiments, many other variations or modifications can be directly determined or deduced according to the disclosure of the present application without departing from the spirit and scope of the present application, which conform to the principles of the present application. Therefore, the scope of the present application should be understood and recognized as covering all these other variations or modifications.

Claims

1. A communication system for mining equipment, characterized in that, This includes terminal equipment and communication adapter boards; The terminal device is equipped with a set application program, which is configured to: acquire data to be sent, convert the data to be sent into multiple data frames in CAN frame format, and send the data frames to the communication adapter board. The communication adapter board is equipped with a CAN bus interface and a wireless communication device, wherein the wireless communication device is wirelessly connected to the mobile communication device, the CAN bus interface is used to connect to a CAN bus for communication with mining equipment via the CAN bus, and the communication adapter board is configured as follows: After receiving the data to be sent from the terminal device, a preset weighted routing table is obtained; The data weight information of the data to be sent and the equipment weight information of the mining equipment corresponding to the data to be sent are obtained according to the routing weight table. The sending order of the data to be sent is determined based on the data weight information and the device weight information, and the data to be sent is sent to the mining equipment according to the sending order. The device data of the mining equipment is obtained from the CAN bus interface and then sent to the mobile terminal.

2. The communication system for mining equipment according to claim 1, characterized in that, The terminal device is equipped with an identity certificate. After the first communication connection to the communication adapter board, it obtains a dynamic password and sends the identity certificate and dynamic password to the communication adapter board. After receiving the identity certificate and dynamic password, the communication adapter board performs identity authentication on the terminal device based on the identity certificate and dynamic password.

3. The communication system for mining equipment according to claim 1, characterized in that, After converting the format of the data to be generated into multiple data frames, the terminal device sets the frame sequence number for each data frame. After receiving the data to be sent, the communication adapter board checks whether there is a data frame loss based on the frame sequence number. If there is, it sends frame loss information to the terminal device. After receiving the frame loss information, the terminal device retransmits the data to be sent to the communication adapter board.

4. The communication system for mining equipment according to claim 1, characterized in that, After receiving the data to be sent from the terminal device, the communication adapter board returns a response frame to the terminal device. If the terminal device does not receive the response frame within a set time after sending the data to be sent, it will resend the data to be sent to the communication adapter board.

5. The communication system for mining equipment according to claim 1, characterized in that, Before transmitting the data to be sent to the communication forwarding board, the terminal device encrypts the data to be sent; and after receiving the data to be sent, the communication forwarding board decrypts the data to be sent. Before sending the device data to the terminal device, the communication adapter board encrypts the device data; after receiving the device data, the terminal device decrypts the device data.

6. The communication system for mining equipment according to claim 1, characterized in that, After acquiring multiple data to be sent, the mobile terminal periodically sends the multiple data to be sent to the communication adapter board.

7. The communication system for mining equipment according to claim 1, characterized in that, The application setting is also used to obtain the user's identity information and to authenticate the user and authorize operations based on the identity information.

8. The communication system for mining equipment according to claim 1, characterized in that, After receiving the device data, the terminal device obtains the device status information of the mining equipment based on the device data, and generates a device log and / or displays the status information interface of the mining equipment based on the device status information.

9. The communication system for mining equipment according to claim 1, characterized in that, The communication adapter board is also used to connect to the hydraulic support controller of the mining equipment, and after receiving the data to be sent, it sends the data to the hydraulic support controller.

10. The communication system for mining equipment according to claim 9, characterized in that, The communication adapter board is equipped with a plug-in interface, which is used for plug-in connection with the hydraulic support controller.

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