CN115022418A - Data interaction method, device and system for electric power-assisted bicycle and storage medium - Google Patents
Data interaction method, device and system for electric power-assisted bicycle and storage medium Download PDFInfo
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Abstract
The embodiment of the invention provides a data interaction method, a device, a system and a storage medium of an electric power-assisted bicycle, relates to the field of electric power-assisted bicycles, and is applied to an interaction module in a data interaction system; the method comprises the following steps: acquiring a first data communication instruction generated by first equipment; converting the first data communication instruction to generate a first data message; matching a preset communication protocol rule base according to the first data message, and determining a first communication protocol rule matched with the first data message; analyzing the first data message by adopting a first communication protocol rule to obtain a message identifier and a data main body in the first data message; converting the data main body and the message identification by adopting a second communication protocol rule corresponding to the second identification to generate a second data message; the second data message is transmitted to the second device. By adopting the invention, the interaction flexibility between different upper computers and lower computers of the electric power-assisted bicycle can be increased.
Description
Technical Field
The invention relates to the field of electric power bicycles, in particular to a data interaction method, a data interaction device, a data interaction system and a storage medium of an electric power bicycle.
Background
After the original bicycle is provided with the driving system, the bicycle becomes an electric power-assisted bicycle, and great convenience is brought to the life of people.
The electric moped driving system mainly structurally comprises an instrument, a controller, a battery (comprising a battery management system BMS), a sensor, a motor and the like, and can be divided into an upper computer, a lower computer and a control assembly. For example, the meter is an upper computer, the controller, the BMS system, and the like are lower computers, and the sensor, the motor, and the like are control components. The same communication protocol is needed to be adopted between the upper computer and the lower computer, and channels capable of communicating with each other are configured, so that normal communication, data interaction, data modification, upgrading and other operations can be carried out.
However, once the configuration of the communication protocol between most upper computers and lower computers is completed, and then different upper computers or lower computers are modified or replaced, situations that the protocols are not matched and communication is difficult may occur, and even though the same manufacturer and the same equipment are slightly different in model number, operation is inconvenient.
Disclosure of Invention
The embodiment of the invention provides a data interaction method, a data interaction device, a data interaction system and a storage medium of an electric power bicycle, and the interaction flexibility between different upper computers and lower computers of the electric power bicycle is improved.
In a first aspect, an embodiment of the present invention provides a data interaction method for an electric power assisted bicycle, which is applied to an interaction module in a data interaction system; the method comprises the following steps:
acquiring a first data communication instruction generated by first equipment; the first equipment is any one of an upper computer and a lower computer, the upper computer is an upper computer associated with the electric power-assisted bicycle, and the lower computer is a lower computer in the electric power-assisted bicycle;
converting the first data communication instruction to generate a first data message;
according to the first data message, matching is carried out through a preset communication protocol rule base, and a first communication protocol rule matched with the first data message is determined; a plurality of preset communication protocol rules are stored in the preset communication protocol rule base;
analyzing the first data message by adopting the first communication protocol rule to obtain a message identifier and a data main body in the first data message; the message identification comprises: a first identifier and a second identifier, wherein the first identifier is used for indicating the first device, and the second identifier is used for indicating the second device; the second equipment is the other equipment of the upper computer and the lower computer;
converting the data main body and the message identification by adopting a second communication protocol rule corresponding to the second identification to generate a second data message;
transmitting the second data message to the second device.
Optionally, before the obtaining of the first data communication instruction generated by the first device, the method includes:
receiving a plurality of handshake messages sent by a plurality of devices, and respectively determining a communication protocol rule and a message identifier corresponding to each device according to the plurality of handshake messages; the plurality of devices includes the first device and the second device.
Optionally, after the converting the first data communication instruction to generate the first data packet, the method includes:
analyzing the first data message to obtain a first analysis result of the first data message;
checking the first data message according to the first analysis result;
the determining a first communication protocol rule matched with the first data message by matching through a preset communication protocol rule base according to the first data message comprises the following steps:
and if the first data message passes the verification, matching the first data message through a preset communication protocol rule base according to the first data message, and determining a first communication protocol rule matched with the first data message.
Optionally, the verifying the first data packet according to the first parsing result includes:
if the first analysis result comprises: the starting bit, the ending bit, the data to be verified and the check bit are adopted to verify the data to be verified;
and if the data to be verified passes the verification, determining that the first data message passes the verification.
Optionally, the verifying the first data packet according to the first parsing result further includes:
if the first data communication instruction is converted to generate a plurality of first data messages, the first analysis result comprises a plurality of start bits, a plurality of end bits, a plurality of data to be verified and a plurality of check bits corresponding to the plurality of first data messages, and each check bit and the corresponding data to be verified are respectively adopted for verification;
and if each piece of data to be verified passes the verification, determining that the first data message passes the verification.
Optionally, if the upper computer is an instrument device in the driving devices of the electric power-assisted bicycle, the lower computer is the other driving devices except the instrument device;
if the upper computer is a mobile terminal which is in communication connection with the interaction module and is independent of the electric power-assisted bicycle, or a personal computer, the lower computer is a driving device of the electric power-assisted bicycle.
Optionally, if the first device is an upper computer, the first data communication instruction is a control instruction or a state acquisition instruction; alternatively, the first and second liquid crystal display panels may be,
and if the first device is a lower computer, the first data communication instruction is a control feedback instruction or a state data feedback instruction.
In a second aspect, an embodiment of the present invention further provides a data interaction device for an electric power assisted bicycle, which is applied to an interaction module in a data interaction system; the device comprises:
the acquisition module is used for acquiring a first data communication instruction generated by first equipment; the first equipment is any one of an upper computer and a lower computer, the upper computer is an upper computer related to the electric power bicycle, and the lower computer is a lower computer in the electric power bicycle;
the first conversion module is used for converting the first data communication instruction to generate a first data message;
the matching module is used for matching a preset communication protocol rule base according to the first data message and determining a first communication protocol rule matched with the first data message; a plurality of preset communication protocol rules are stored in the preset communication protocol rule base;
the analysis module is used for analyzing the first data message by adopting the first communication protocol rule to obtain a message identifier and a data main body in the first data message; the message identification comprises: a first identifier and a second identifier, the first identifier being used to indicate the first device, the second identifier being used to indicate a second device; the second equipment is another type of equipment in the upper computer and the lower computer;
the second conversion module is used for converting the data main body and the message identifier by adopting a second communication protocol rule corresponding to the second identifier to generate a second data message;
a transmission module configured to transmit the second data packet to the second device.
In a third aspect, an embodiment of the present invention further provides a data interaction system for an electric power assisted bicycle, including: the system comprises a plurality of first devices, a plurality of second devices and an interaction module; the plurality of first devices and the plurality of second devices are respectively in communication connection with the interaction module, wherein the interaction module is used for executing the steps of the data interaction method of the electric power bicycle according to any one of the first aspect.
In a fourth aspect, the present invention further provides a computer-readable storage medium, where the storage medium stores a computer program, and the computer program is executed by a processor to perform the steps of the data interaction method for an electric bicycle according to any one of the first aspect.
The invention provides a data interaction method, a device, a system and a storage medium of an electric power assisted bicycle, which are applied to an interaction module in a data interaction system, and can convert and generate a first data message by acquiring a first data communication instruction generated by first equipment; and matching the preset communication protocol rule base according to the first data message, and determining a first communication protocol rule matched with the first data message. Then, analyzing the first data message by adopting a first communication protocol rule to obtain a message identifier and a data main body in the first data message; and then, converting the data main body and the message identification by adopting a second communication protocol rule corresponding to the second identification to generate a second data message, and finally transmitting the second data message to second equipment. Through such interactive mode for when host computer or the next computer in the electric power bicycle carry out the interaction, even under the inconsistent circumstances of communication protocol, still can send the instruction that needs the transmission for target device, avoided the artifical complicated adjustment that carries on when communication protocol is inconsistent, also increased the interactive flexibility between the different host computers of electric power bicycle.
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In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.
FIG. 1 is a schematic diagram of a data interaction system of an electric bicycle according to the present invention;
FIG. 2 is a schematic view of another data interaction system of an electric bicycle according to the present invention;
FIG. 3 is a schematic flow chart illustrating a data interaction method for an electric bicycle according to the present invention;
FIG. 4 is a schematic flow chart of another data interaction method provided by the present invention;
FIG. 5 is a flow chart illustrating another data interaction method provided by the present invention;
FIG. 6 is a flow chart illustrating another data interaction method provided by the present invention;
fig. 7 is a schematic view of a data interaction device of an electric bicycle according to the present invention.
Icon: 1, a first device; 2, a second device; and 3, an interaction module.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. The components of embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.
Thus, the following detailed description of the embodiments of the present invention, presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.
Furthermore, the appearances of the terms "first," "second," and the like, if any, are used solely to distinguish one from another and are not to be construed as indicating or implying relative importance.
It should be noted that the features of the embodiments of the present invention may be combined with each other without conflict.
Before explaining the present invention in detail, an application scenario of the present invention will be described.
For different components of the electric power bicycle, the same communication protocol is needed to be used for mutual communication, but for most of the components, the same communication protocol is needed to be used for communication, so that the interaction mode of the electric power bicycle is limited, and the interaction difficulty among different electric power bicycles is increased.
Based on the above, the application provides a data interaction method, device, system and storage medium for an electric power assisted bicycle, so that an interaction module in a data interaction system obtains a first data communication instruction generated by first equipment, and then converts the first data communication instruction into a first data message; and matching the preset communication protocol rule base according to the first data message, and determining a first communication protocol rule matched with the first data message. Then, analyzing the first data message by adopting a first communication protocol rule to obtain a message identifier and a data main body in the first data message; and then, a second communication protocol rule corresponding to the second identifier is adopted to convert the data main body and the message identifier to generate a second data message, and finally the second data message is transmitted to second equipment, so that the two equipment of different communication protocols can communicate with each other, instruction information is known, and the problem that the equipment of different communication protocols cannot communicate with each other is solved.
The data interaction method of the electric power assisted bicycle provided by the following embodiments of the present invention can be executed by an interaction module in a data interaction system, and the interaction module can be an integrated circuit chip with signal Processing capability, such as a Central Processing Unit (CPU), a Network Processor (NP), and the like; but may also be a Digital Signal Processor (DSP), an Application Specific Integrated Circuit (ASIC), a Field-Programmable Gate Array (FPGA), or other Programmable logic device. The steps of the method disclosed in the embodiments of the present invention may be directly implemented by a hardware decoding processor, or implemented by a combination of hardware and software modules in the decoding processor, which is not limited in this application.
The following is an explanation by way of various embodiments in conjunction with the accompanying drawings. Fig. 1 is a schematic diagram of a data interaction system of an electric power assisted bicycle according to the present invention. As shown in fig. 1, the data interaction system of the electric bicycle comprises: a plurality of first devices 1, a plurality of second devices 2, and an interaction module 3; a plurality of first devices 1 and a plurality of second devices 2 are each communicatively connected to an interaction module 3.
The first equipment 1 is any one of an upper computer and a lower computer, the upper computer is an upper computer associated with the electric power bicycle, and the lower computer is a lower computer in the electric power bicycle. The second device 2 is another type of device of the upper computer and the lower computer. If the first device 1 is an upper computer, the second device 2 is a lower computer. If the first device 1 is a lower computer, the second device 2 is an upper computer.
In this application, if the host computer is the instrumentation in the drive equipment of the electric power assisted bicycle, then the host computer is the remaining drive equipment except for the instrumentation.
In the present embodiment, the driving apparatus of the electric bicycle includes an instrument apparatus, a vehicle controller of the electric bicycle, a Battery Management System (BMS), a motor, and the like, which is not particularly limited in the present application.
If the upper Computer is a mobile terminal which is connected with the interaction module in a communication mode and is independent of the electric power bicycle, or a Personal Computer (PC), the lower Computer is a driving device of the electric power bicycle.
In this embodiment, the mobile terminal is a computer device having an information processing control function, for example, a smartphone, a tablet computer, or the like. The PC may be a notebook computer or a desktop computer, and the present application is not limited thereto.
Optionally, if the upper computer is the first device 1 and the lower computer is the second device 2, the data interaction system may further include a third device other than the upper computer or the lower computer, the plurality of third devices are in communication connection with the plurality of lower computers, and any one of the plurality of lower computers may control the plurality of third devices. Meanwhile, for one lower computer, the control or data acquisition can be carried out on third equipment in a plurality of electric power-assisted bicycles, such as vehicle-mounted equipment of motors, rotating handles, brakes, car lamps and the like.
It should be noted that, in a possible case, if the upper computer is an instrument device of the electric power assisted bicycle and the lower computer is a motor, the lower computer is not connected to the third device at this time, and the instrument device can perform data acquisition on the motor; in another possible case, if the upper computer is an instrument device of the electric power-assisted bicycle and the lower computer is a vehicle controller, the third device may be a plurality of motors, so that the vehicle controller controls or collects data of the plurality of motors.
As shown in fig. 1, in the present embodiment, the interaction module 3 of the electric power assisted bicycle is independent of the first device 1 or the second device 2. In a possible implementation manner, the interaction module 3 of the electric bicycle may be disposed in the first device 1 or the second device 2, which is not limited in this application.
Fig. 2 is a schematic diagram of another data interaction system of an electric power assisted bicycle provided by the invention. As shown in fig. 2, if the interaction module 3 of the electric bicycle is disposed in the first device 1, and fig. 2 only shows an example of the interaction module 3 in the first device 1, in a data interaction system, a plurality of first devices 1 as shown in fig. 2 may be included, that is, each first device 1 may have an interaction module 3 built therein, and when the first device 1 needs to communicate with the second device 2, the built-in interaction module 3 performs data communication.
When the example is in use, the first device 1/the second device 2 may send a data communication instruction to the second device 2/the first device 1, and then the interaction module 3 performs processing on the data communication instruction, so that information contained in the data communication instruction is converted into a data message that can be recognized by the second device 2/the first device 1 by the interaction module 3, and then the data message is transmitted to the second device 2/the first device 1, so that the first device 1 and the second device 2 can communicate with each other.
In this embodiment, can carry out data transmission through interactive module between host computer and the next machine, the manual work carries out complicated adjustment when avoiding communication protocol inconsistent, increases the interactive flexibility between the different host computers of electric power bicycle.
On the basis of the data interaction system provided by the embodiment, the invention also provides a possible implementation mode of the data interaction method of the electric power-assisted bicycle. Fig. 3 is a schematic flow chart of a data interaction method of an electric power assisted bicycle according to the present invention. As shown in fig. 3, the data interaction method of the electric power bicycle is applied to an interaction module in a data interaction system, and the data interaction method of the electric power bicycle includes:
s110, a first data communication instruction generated by the first equipment is obtained.
The first equipment 1 is any one of an upper computer and a lower computer, the upper computer is an upper computer related to the electric power bicycle, and the lower computer is a lower computer in the electric power bicycle.
In this embodiment, when the first device 1 is an upper computer, the second device 2 is a lower computer; when the first device 1 is a lower computer, the second device 2 is an upper computer.
Optionally, if the upper computer is an instrument device in the driving devices of the electric power-assisted bicycle, the lower computer is the other driving devices except the instrument device; if the upper computer is a mobile terminal or a PC (personal computer) which is connected with the interaction module in a communication way and is independent of the electric power-assisted bicycle, the lower computer is a driving device of the electric power-assisted bicycle. Meanwhile, for one lower computer, the control or data acquisition can be carried out on third equipment in a plurality of electric power-assisted bicycles, such as motor, rotating handle, brake, car lamp and other vehicle-mounted components.
In this application, the communication protocol used by the upper computer or the lower computer is not limited, and optionally, a communication protocol such as UART (Universal Asynchronous Receiver/Transmitter), CAN (Controller Area Network) bus communication, USART (Universal Synchronous/Asynchronous Receiver/Transmitter), I2C (Inter-Integrated Circuit, two-wire Serial bus) communication, SPI (Serial Peripheral Interface), Modbus (a Serial communication protocol) communication, or the like may be used. Meanwhile, the specific data message rule of the communication protocol used by the upper computer or the lower computer is not limited.
When the first device 1 needs to perform data communication with the second device 2, the first device 1 initiates a data communication instruction to the second device 2, and the interaction module 3 first acquires the first data communication instruction generated by the first device 1 to process the first data communication instruction.
For the first data communication command, it includes any command information of control, state acquisition, state feedback, control feedback, and the like sent by the first device 1 to the second device 2, and the specific information included in the first data communication command is not specifically limited in the present application.
S120, the first data communication command is converted to generate a first data message.
For the interaction module 3, the obtained first data communication instruction may be in a high-low level form, and optionally, a shift register may be used to convert the first data communication instruction to generate the first data packet.
For the interaction module 3, the obtained first data communication instruction may be in a high-low level form, and a shift register may be used to capture a level pulse output by the first device 1, so as to convert the first data communication instruction into a first data packet.
S130, according to the first data message, matching is carried out through a preset communication protocol rule base, and a first communication protocol rule matched with the first data message is determined.
The preset communication protocol rule base stores a plurality of preset communication protocol rules.
In this embodiment, when the interaction module 3 acquires the first data packet, it needs to determine the communication protocol rule corresponding to the first data packet, that is, determine the communication protocol rule of the first device 1 corresponding to the first data packet.
In the application, the matching is performed through a preset communication protocol rule base, and a first communication protocol rule matched with the first data message is determined. Optionally, the preset communication protocol library stores a plurality of preset communication protocol rules, which may include various message rules and corresponding instruction definitions included in communication protocols such as UART, CAN, USART, I2C, Modbus, and the like.
Optionally, the first data packet may be matched with various communication protocol rules included in the preset communication protocol rule base in a traversal manner until the same communication protocol rule as the first data packet is obtained in a traversal manner.
In a possible implementation manner, if a matching communication protocol rule is not found in the preset communication protocol rule base for the first data packet, the first data packet is stored in the preset communication protocol rule base, and the interaction module 3 abandons processing and transmission of the first data packet at the same time.
S140, the first data message is analyzed by adopting a first communication protocol rule, and a message identifier and a data main body in the first data message are obtained.
The message identification comprises: the device comprises a first identifier and a second identifier, wherein the first identifier is used for indicating a first device, and the second identifier is used for indicating a second device; the second device is another device of the upper computer and the lower computer.
In this embodiment, after the first communication protocol rule corresponding to the first data packet is obtained through traversal, the first data packet is analyzed to obtain the packet identifier and the data main body in the first data packet.
The message identifier includes a first identifier for indicating the first device and a second identifier for indicating the second device, that is, the source of the first data message and the destination to be sent can be known according to the message identifier. Optionally, the packet identifier further includes: and a third identifier for indicating a third device controlled by the lower computer.
If the first device 1 is an upper computer and the second device 2 is a lower computer, the third identifier obtained by analyzing the first data message is the device identifier which the first device 1 wants to control through the second device 2; if the first device 1 is located at a lower computer and the second device 2 is an upper computer, the third identifier obtained by analyzing the first data message is the device identifier for feeding back the control result from the first device 1 to the second device 2.
For the data body, the effective data information of the first data packet is included, that is, the specific instruction information included in the first data packet, such as specific instruction information of "query power", shutdown ", return power", shutdown ", and the like.
For example, for the UART communication protocol, there may be the following communication protocol rules, such as: a start bit, a message ID (Identity document), an effective data length, effective data, a check bit and an end bit; or: the system comprises a start bit, a target address, a source address, a message ID, an effective data length, effective data, a check bit and an end bit.
The start bit of the message represents the start of the message, the length of the valid data is the length of the valid data identifying the data message, the valid data includes specific instruction information included in the data message, the check bit includes check information of the data message, and the end bit is used for representing the end of the data message.
Optionally, if only a packet ID is included between the start bit of the packet and the valid data in the communication protocol rule, the packet ID includes a destination address (i.e., an address of the upper computer/lower computer to which the data packet needs to be sent), a source address ID (i.e., a source address of the data communication instruction corresponding to the data packet), and an equipment ID (identifying a third equipment ID controlled by the lower computer).
If the start bit of the message in the communication protocol and the valid data include a destination address, a source address, and a message ID, the destination address (i.e., the address of the upper computer/lower computer to which the data message needs to be sent), the source address ID (i.e., the source address of the data communication command corresponding to the data message), and the message ID are device IDs, and are used to identify a third device ID controlled by the lower computer.
S150, the data main body and the message identification are converted by adopting a second communication protocol rule corresponding to the second identification to generate a second data message.
For the interaction module 3, after the message identifier and the data main body in the first data message are obtained, the corresponding first identifier and the second identifier of the first data message are obtained, the data main body and the message identifier may be converted according to the second communication protocol rule corresponding to the second device 2 corresponding to the second identifier and the corresponding definition, so as to generate a second data message, that is, the source, the destination, and the valid information of the first data message are converted through the second communication protocol recognizable by the second device 2, so as to become the second data message recognizable by the second device 2.
And S160, transmitting the second data message to the second equipment.
After the interaction module 3 obtains the second data message, the second data message is transmitted to the second device 2, so that the second device 2 can obtain the instruction information included in the first data communication instruction which the first device 1 wants to convey.
In order to clearly explain the data interaction process of the electric power-assisted bicycle, the first device 1 is used as an upper computer and is used as an instrument in the electric power-assisted bicycle; the second device 2 is a lower computer, which is a controller in an electric power assisted bicycle. The first device adopts communication protocol rules of 'start bit, target address, source address, message ID, effective data length, effective data, check bit and end bit' in UART.
First, a communication protocol rule corresponding to the first device 1 and a corresponding instruction definition in the embodiment of the present invention are provided.
TABLE 1 destination Address ID and Source Address ID definitions
| Device | ID |
| PC | 0xAA |
| Instrument and meter | 0x01 |
| Battery with a battery cell | 0x02 |
| Controller for controlling a motor | 0x03 |
As shown in table 1, in the embodiment of the present invention, the packet ID of the PC end of the upper computer is assigned to 0xAA, the packet ID of the meter of the upper computer is assigned to 0x01, the packet ID of the battery of the lower computer is assigned to 0x02, and the packet ID of the controller of the lower computer is assigned to 0x 03.
TABLE 2 message ID when the meter communicates with the controller
As shown in table 2, in the embodiment of the present invention, the identifier ID of the hardware version of the upper computer instrument (version number DM TC 600635: 0x001E0203) is assigned to 0x0001, the identifier ID of the software version of the lower computer controller (version number DM 32 FOC 1.0: 0x001E0103) is assigned to 0x0002, the identifier ID of the hardware version of the motor 01 controlled by the controller (version number DM DJ 0011: 0x001E0401) is assigned to 0x0003, and the identifier ID of the hardware version of the motor 02 controlled by the controller (version number DM DJ 0011: 0x001E0403) is assigned to 0x 0004; in addition, the request type, transmission mode (whether to transmit at startup; whether to transmit at normal operation), and effective data length are defined.
TABLE 3 definition of message ID when meters and controllers communicate
As shown in table 3, in the embodiment of the present invention, the identification ID of the wheel track is assigned to 0x0101, the identification ID of the maximum speed limit is assigned to 0x0102, the identification ID of the riding speed is assigned to 0x0103, and the identification ID of the single mileage is assigned to 0x 010D; in addition, the request type, the message sending period, the message overtime and the data length are defined.
TABLE 4 Instructions specified in the communication protocol
| Identification ID | Description of the invention |
| 0x02 | Start bit |
| 0x03 | End bit |
| 0x00 | Read request |
| 0x01 | Write request |
As shown in Table 4, in one embodiment of the present invention, the ID of the start bit is assigned 0x02, the ID of the end bit is assigned 0x03, the ID of the read request is assigned 0x00, and the ID of the write request is assigned 0x 01.
In this embodiment, the protocol sending message follows "high order before, low order after", and when the meter needs to request the controller to read the hardware version number of the motor 02, it needs to send: 02 (start bit) 03 (destination address: controller) 01 (source address: meter) 0400 (third device address: motor 02)00 (valid data length) 00 (valid data: read request) 50a0 (check bit) 03 (end bit).
Finally, when the controller returns the hardware version number of the motor 02 to the meter, the interaction module 3 converts the hardware version number and sends the hardware version number to the meter: 02 (start bit) 01 (target address: meter) 03 (source address: controller) 0400 (third device address: motor 02) 0400 (valid data length) 03041E 00 (valid data: hardware version of motor 02) 94CD (check bit) 03 (end bit).
In this way, the upper computer and the lower computer realize data communication.
In this embodiment, when the host computer or the lower computer in the electric power bicycle interact, even under the inconsistent condition of communication protocol, still can send the instruction that needs the transmission to the target device, the manual work when having avoided communication protocol inconsistent carries out complicated adjustment, also increases the interactive flexibility between the different host computers of electric power bicycle.
Optionally, on the basis of the foregoing embodiment, before acquiring the first data communication instruction generated by the first device in S110, the method further includes:
s210, receiving a plurality of handshake messages sent by a plurality of devices, and respectively determining a communication protocol rule and a message identifier corresponding to each device according to the plurality of handshake messages.
Wherein the plurality of devices includes a first device and a second device.
In the application, before the interaction module 3 obtains the first data communication instruction, a plurality of devices included in the data interaction system, that is, a plurality of first devices 1 serving as upper computers and a plurality of second devices 2 serving as lower computers are required to actively send handshake information to the interaction module 3, the interaction module 3 performs steps S110 to S130 on each piece of handshake information, so as to obtain a communication protocol rule and a corresponding packet identifier matched with a device corresponding to each handshake information, that is, before the interaction module 3 obtains the first data communication instruction, the interaction module 3 knows the communication protocol rule corresponding to the first device 1 and the second device 2.
However, for the interaction module 3 to receive the first data communication command, the steps S110 to S130 still need to be performed on the first data communication command, and it needs to know which first device 1 and which second device 2 the first data communication command is sent by.
In this embodiment, the interaction module receives a plurality of handshake messages in advance, so that when a data body and a message identifier in a subsequently received data communication instruction are converted, a communication protocol rule of a receiving party can be known.
On the basis of the data interaction method provided by fig. 3, the present application also provides a possible implementation manner of data interaction. Fig. 4 is a schematic flow chart of another data interaction method provided by the present invention. As shown in fig. 4, before the step S130 of matching the first data packet according to the preset communication protocol rule base and determining the first communication protocol rule matched with the first data packet, the method includes:
s310, the first data message is analyzed, and a first analysis result of the first data message is obtained.
In this embodiment, before performing matching, the first data packet needs to be analyzed to obtain a first analysis result of the first data packet. Wherein, the first parsing result may include: the start bit, the end bit, the check bit and the data to be checked of the first data message. The data to be verified is the data before the secondary check bit and after the initial bit.
S320, checking the first data message according to the first analysis result.
The step S130 of matching the first data packet through the preset communication protocol rule base according to the first data packet, and determining the first communication protocol rule matched with the first data packet includes:
s330, if the first data message passes the verification, matching is carried out through a preset communication protocol rule base according to the first data message, and a first communication protocol rule matched with the first data message is determined.
Optionally, the first data packet may be verified according to the first parsing result and a preset verification rule, so as to prevent the problem of data disorder and loss after the data is sent from the first device 1 to the interaction module 3, and if the first data packet passes verification, the steps related to S130-160 are performed according to the first data packet. Alternatively, if the check fails, the interactive module 3 abandons this data processing.
In this embodiment, by performing data verification before data message matching, time waste caused by direct data matching of incomplete data is avoided, and data integrity is ensured.
On the basis of the data interaction method provided in fig. 1, the present application also provides a possible implementation manner of data interaction. Fig. 5 is a schematic flow chart of another data interaction method provided by the present invention. As shown in fig. 5, in step S320, verifying the first data packet according to the first parsing result includes:
s410, if the first parsing result includes: and verifying the data to be verified by adopting the check bit.
If the first parsing result includes: for the communication protocol type, the start bit, the end bit, the message identifier, the data to be checked, and the Check bit, the data to be checked is checked by using the Check bit, and for the application, CRC (Cyclic Redundancy Check) checking may be used.
Alternatively, a preset CRC check calculator can be used to input the data to be checked, and then the data to be checked is checked according to a preset check mode, such as 'CRC-16/CCITT-FALSE'; the verification result of the data to be verified can be obtained after the click confirmation of x16+ x12+ x5+ 1', and then the verification result is compared with the data of the check bits, if the verification result is the same as the data of the check bits, the verification is passed; if not, the verification is not passed.
And S420, if the data to be verified passes the verification, determining that the first data message passes the verification.
If the calculation result of the data to be verified is equal to the data of the check bit, the verification is passed; if the verification is passed, the verification of the first data message is confirmed to be passed, and then the relevant steps of S130-160 are carried out.
Optionally, in a possible implementation manner, if the first parsing result does not include the start bit or the end bit or the check bit of the data packet, it is directly determined that the check fails.
In this embodiment, the data message is checked for the check bit and integrity, so that the data is prevented from being changed in the transmission process.
Optionally, if the first device is an upper computer, the first data communication instruction is a control instruction or a state acquisition instruction; or, if the first device is a lower computer, the first data communication instruction is a control feedback instruction or a state data feedback instruction.
In this embodiment, if the first device is an upper computer, the first data communication instruction is a control instruction, such as "cause the controller to control the motor 02 to shut down" or a status acquisition instruction, such as "cause the controller to acquire the version of the motor 02"; if the first device is a lower computer, the first data communication instruction is a control feedback instruction, such as "feedback the controlled motor 02 to the meter to shut down", or a status data feedback instruction, such as "feedback the version of the motor 02 to the meter 0x001E 0403".
Optionally, the present application also provides a possible implementation manner of data interaction. Fig. 6 is a schematic flow chart of another data interaction method provided by the present invention. As shown in fig. 6, in the above S320, verifying the first data packet according to the first parsing result, further includes:
s510, if the first data packet generated by the first data communication instruction conversion includes a plurality of data packets, the first parsing result includes a plurality of start bits, a plurality of end bits, a plurality of data to be verified, and a plurality of check bits corresponding to the plurality of data packets, and each check bit and the corresponding data to be verified are respectively used for verification.
S520, if the plurality of data to be verified pass the verification, determining that the first data message passes the verification.
In this embodiment, if the first data packet generated by converting the first data communication instruction includes a plurality of data packets, the start bit, the end bit, the data to be verified, and the check bit corresponding to each data packet are obtained after the first data packet is analyzed, for each data packet, the data to be verified and the check bit in the data packet need to be verified, and if the data to be verified in each data packet passes the verification, that is, each data packet passes the verification, it is determined that the first data packet passes the verification.
In a possible implementation manner, if at least one data message which does not pass the verification exists in the verification result, the data message which does not pass the verification is discarded, the data message which passes the verification is matched through a preset communication protocol rule base, and the matched communication protocol rule is determined.
In another possible implementation manner, if each data packet in the verification result fails to pass the verification, the first data packet generated by converting the first data communication instruction is discarded as a whole, and the interaction of the first data packet is terminated.
Optionally, if the upper computer is an instrument device in the driving devices of the electric power-assisted bicycle, the lower computer is the other driving devices except the instrument device;
if the upper computer is a mobile terminal which is connected with the interaction module in a communication mode and is independent of the electric power bicycle, or a personal computer, the lower computer is a driving device of the electric power bicycle.
Fig. 7 is a schematic view of a data interaction device of an electric power assisted bicycle according to the present invention, and as shown in fig. 7, the data interaction device of the electric power assisted bicycle is applied to an interaction module of a data interaction system, and the device includes:
an obtaining module 1000, configured to obtain a first data communication instruction generated by a first device; the first equipment is any one of an upper computer and a lower computer, the upper computer is an upper computer related to the electric power-assisted bicycle, and the lower computer is a lower computer in the electric power-assisted bicycle;
a first conversion module 2000, configured to convert the first data communication instruction to generate a first data packet;
the matching module 3000 is configured to match the preset communication protocol rule base according to the first data packet, and determine a first communication protocol rule matched with the first data packet; the preset communication protocol rule base stores a plurality of preset communication protocol rules;
the analysis module 4000 is configured to analyze the first data packet by using a first communication protocol rule to obtain a packet identifier and a data main body in the first data packet; the message identification comprises: the device comprises a first identifier and a second identifier, wherein the first identifier is used for indicating a first device, and the second identifier is used for indicating a second device; the second equipment is the other equipment of the upper computer and the lower computer;
the second conversion module 5000 is configured to convert the data main body and the message identifier by using a second communication protocol rule corresponding to the second identifier, and generate a second data message;
a transmitting module 6000 is configured to transmit the second data message to the second device.
Optionally, the obtaining module 1000 is further specifically configured to receive multiple handshake messages sent by multiple devices.
The matching module 3000 is further specifically configured to determine, according to the multiple handshake messages, a communication protocol rule and a message identifier corresponding to each device respectively. Wherein the plurality of devices includes a first device and a second device.
Optionally, the parsing module 4000 is further specifically configured to parse the first data packet to obtain a first parsing result of the first data packet.
Optionally, the apparatus further comprises: the checking module is used for checking the first data message according to the first analysis result; and if the first data message passes the verification, matching the first data message through a preset communication protocol rule base according to the first data message, and determining a first communication protocol rule matched with the first data message.
The verification module is specifically further configured to, if the first analysis result includes: the start bit, the end bit, the data to be verified and the check bit are adopted to verify the data to be verified; and if the data to be verified passes the verification, determining that the first data message passes the verification.
Optionally, the verification module is specifically configured to, if the first data packet generated by converting the first data communication instruction includes multiple data packets, determine that the first analysis result includes multiple start bits, multiple end bits, multiple data to be verified, and multiple verification bits corresponding to the multiple data packets, and perform verification respectively using each verification bit and corresponding data to be verified;
and if the plurality of data to be verified pass the verification, determining that the first data message passes the verification.
Optionally, if the upper computer is an instrument device in the driving devices of the electric power-assisted bicycle, the lower computer is the other driving devices except the instrument device;
if the upper computer is a mobile terminal which is connected with the interaction module in a communication mode and is independent of the electric power bicycle, or a personal computer, the lower computer is a driving device of the electric power bicycle.
Optionally, if the first device is an upper computer, the first data communication instruction is a control instruction or a state acquisition instruction; or, if the first device is a lower computer, the first data communication instruction is a control feedback instruction or a state data feedback instruction.
These above modules may be one or more integrated circuits configured to implement the above methods, such as: one or more Application Specific Integrated Circuits (ASICs), or one or more Digital Signal Processors (DSPs), or one or more Field Programmable Gate Arrays (FPGAs), etc. For another example, when one of the above modules is implemented in the form of a Processing element scheduler code, the Processing element may be a general-purpose processor, such as a Central Processing Unit (CPU) or other processor capable of calling program code. For another example, the modules may be integrated together and implemented in the form of a System-on-a-Chip (SOC).
Optionally, the invention also provides a program product, for example a computer-readable storage medium, comprising a program which, when being executed by a processor, is adapted to carry out the above-mentioned method embodiments.
In the embodiments provided in the present invention, it should be understood that the disclosed apparatus and method may be implemented in other ways. For example, the above-described apparatus embodiments are merely illustrative, and for example, the division of the units is only one logical division, and other divisions may be realized in practice, for example, a plurality of units or components may be combined or integrated into another system, or some features may be omitted, or not executed. In addition, the shown or discussed mutual coupling or direct coupling or communication connection may be an indirect coupling or communication connection through some interfaces, devices or units, and may be in an electrical, mechanical or other form.
The units described as separate parts may or may not be physically separate, and parts displayed as units may or may not be physical units, may be located in one position, or may be distributed on multiple network units. Some or all of the units can be selected according to actual needs to achieve the purpose of the solution of the embodiment.
In addition, functional units in the embodiments of the present invention may be integrated into one processing unit, or each unit may exist alone physically, or two or more units are integrated into one unit. The integrated unit can be realized in a form of hardware, or in a form of hardware plus a software functional unit.
The integrated unit implemented in the form of a software functional unit may be stored in a computer-readable storage medium. The software functional unit is stored in a storage medium and includes several instructions to enable a computer device (which may be a personal computer, a server, or a network device) or a Processor (Processor) to execute some steps of the methods according to the embodiments of the present invention. And the aforementioned storage medium includes: a U disk, a removable hard disk, a Read-Only Memory (ROM), a Random Access Memory (RAM), a magnetic disk or an optical disk, and other various media capable of storing program codes.
The above description is only for the specific embodiment of the present invention, but the scope of the present invention is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present invention are included in the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the appended claims.
Claims (10)
1. A data interaction method of an electric power-assisted bicycle is characterized by being applied to an interaction module in a data interaction system; the method comprises the following steps:
acquiring a first data communication instruction generated by first equipment; the first equipment is any one of an upper computer and a lower computer, the upper computer is an upper computer related to the electric power bicycle, and the lower computer is a lower computer in the electric power bicycle;
converting the first data communication instruction to generate a first data message;
according to the first data message, matching is carried out through a preset communication protocol rule base, and a first communication protocol rule matched with the first data message is determined; a plurality of preset communication protocol rules are stored in the preset communication protocol rule base;
analyzing the first data message by adopting the first communication protocol rule to obtain a message identifier and a data main body in the first data message; the message identification comprises: a first identifier and a second identifier, the first identifier being used to indicate the first device, the second identifier being used to indicate a second device; the second equipment is the other equipment of the upper computer and the lower computer;
converting the data main body and the message identification by adopting a second communication protocol rule corresponding to the second identification to generate a second data message;
transmitting the second data message to the second device.
2. The method of claim 1, wherein obtaining the first data communication instruction generated by the first device is preceded by:
receiving a plurality of handshake messages sent by a plurality of devices, and respectively determining a communication protocol rule corresponding to each device and a corresponding message identifier according to the handshake messages; the plurality of devices includes the first device and the second device.
3. The method of claim 1, wherein after converting the first data communication instruction to generate the first data packet, the method comprises:
analyzing the first data message to obtain a first analysis result of the first data message;
checking the first data message according to the first analysis result;
the matching a preset communication protocol rule base according to the first data message to determine a first communication protocol rule matched with the first data message includes:
and if the first data message passes the verification, matching the first data message through a preset communication protocol rule base according to the first data message, and determining a first communication protocol rule matched with the first data message.
4. The method of claim 3, wherein the verifying the first data packet according to the first parsing result comprises:
if the first analysis result comprises: the starting bit, the ending bit, the data to be verified and the check bit are adopted to verify the data to be verified;
and if the data to be verified passes the verification, determining that the first data message passes the verification.
5. The method of claim 4, wherein the verifying the first data packet according to the first parsing result further comprises:
if the first data message generated by the conversion of the first data communication instruction comprises a plurality of data messages, the first analysis result comprises a plurality of start bits, a plurality of end bits, a plurality of data to be verified and a plurality of check bits corresponding to the plurality of data messages, and the check bits and the corresponding data to be verified are respectively adopted for verification;
and if the plurality of data to be verified pass the verification, determining that the first data message passes the verification.
6. The method according to claim 1, wherein if the upper computer is an instrument device among driving devices of the electric power-assisted bicycle, the lower computers are the remaining driving devices except the instrument device;
and if the upper computer is a mobile terminal which is in communication connection with the interaction module and is independent of the electric power-assisted bicycle, or a personal computer, the lower computer is a driving device of the electric power-assisted bicycle.
7. The method according to claim 1, wherein if the first device is an upper computer, the first data communication instruction is a control instruction or a state acquisition instruction; alternatively, the first and second electrodes may be,
and if the first device is a lower computer, the first data communication instruction is a control feedback instruction or a state data feedback instruction.
8. A data interaction device of an electric power-assisted bicycle is characterized by being applied to an interaction module in a data interaction system; the device comprises:
the acquisition module is used for acquiring a first data communication instruction generated by first equipment; the first equipment is any one of an upper computer and a lower computer, the upper computer is an upper computer related to the electric power bicycle, and the lower computer is a lower computer in the electric power bicycle;
the first conversion module is used for converting the first data communication instruction to generate a first data message;
the matching module is used for matching a preset communication protocol rule base according to the first data message and determining a first communication protocol rule matched with the first data message; a plurality of preset communication protocol rules are stored in the preset communication protocol rule base;
the analysis module is used for analyzing the first data message by adopting the first communication protocol rule to obtain a message identifier and a data main body in the first data message; the message identification comprises: a first identifier and a second identifier, wherein the first identifier is used for indicating the first device, and the second identifier is used for indicating the second device; the second equipment is the other equipment of the upper computer and the lower computer;
the second conversion module is used for converting the data main body and the message identifier by adopting a second communication protocol rule corresponding to the second identifier to generate a second data message;
a transmission module configured to transmit the second data message to the second device.
9. A data interaction system for an electric power assisted bicycle, comprising: the system comprises a plurality of first devices, a plurality of second devices and an interaction module; the plurality of first devices and the plurality of second devices are respectively connected with the interaction module in a communication mode, wherein the interaction module executes the steps of the data interaction method of the electric power bicycle according to any one of claims 1 to 7.
10. A computer-readable storage medium, characterized in that the storage medium has stored thereon a computer program which, when being executed by a processor, carries out the steps of the data interaction method for an electric power assisted bicycle according to any of the claims 1 to 7.
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