WO2019184000A1

WO2019184000A1 - Data transmission method, apparatus, and vehicle-mounted device

Info

Publication number: WO2019184000A1
Application number: PCT/CN2018/082025
Authority: WO
Inventors: 郑乐银; 王辉耀; 方杰
Original assignee: 深圳市沃特沃德股份有限公司
Priority date: 2018-03-26
Filing date: 2018-04-04
Publication date: 2019-10-03
Also published as: CN108551475A

Abstract

Disclosed are a data transmission method, apparatus, and vehicle-mounted device, said method comprising the following steps: obtaining a code corresponding to a parameter to be transmitted; synthesizing a parameter, code, and general data into protocol data according to a preset protocol format; transmitting the protocol data outward. In the data transmission method provided by the embodiments of the present invention, a code is assigned to a corresponding parameter; the code is used to analyze the type of recognition parameter, such that it is unnecessary for vehicle-mounted device to transmit a fixed type of parameter each time; instead, the required parameters are transmitted according to actual conditions; thus data transmission flexibility is improved and data traffic and bandwidth resources are conserved, reducing the burden on the server. On that basis, a user can also add new parameter detection functions as needed, and a vehicle-mounted device needs only to assign a code to a newly added parameter, thus greatly improving the scalability of functions.

Description

Data transmission method, device and vehicle device

Technical field

The present invention relates to the field of in-vehicle technology, and in particular, to a data transmission method, apparatus, and in-vehicle device.

Background technique

With the rapid development of the Internet of Things technology, the functions of in-vehicle devices are becoming more and more abundant. The in-vehicle device can upload the vehicle alarm data and the real-time data of the vehicle to the server. When the user logs in to the server through the terminal device, the data can be acquired in real time.

At present, the in-vehicle device uploads data to the server in a fixed protocol format, and the type of parameters and the order of parameters of each upload are fixed. For example, the protocol stipulates that each of the four parameters of longitude, latitude, speed, and mileage is uploaded, and the four parameters must be sorted in order, otherwise the server cannot resolve.

The above data transmission methods have the following drawbacks:

First, each time a fixed type of data is transmitted, and the required data cannot be uploaded according to the actual situation, resulting in waste of data traffic and bandwidth resources, and increasing the burden on the server.

Second, based on the existing protocol format, it is impossible to add a new parameter detection function, and the protocol format must be redefined. Once the protocol format is redefined, the previous protocol format is also compatible, because the hardware is inconvenient to upgrade once it is used by the user. Moreover, when upgrading, there will be cases where it is incompatible with other modules of the hardware, resulting in poor scalability.

Therefore, how to improve the flexibility of data transmission, save data traffic and bandwidth resources, and reduce the burden on the server is a technical problem that needs to be solved.

technical problem

The main object of the present invention is to provide a data transmission method, device and in-vehicle device, which aims to improve the flexibility of data transmission, save data traffic and bandwidth resources, and reduce the burden on the server.

Technical solution

To achieve the above objective, an embodiment of the present invention provides a data transmission method, where the method includes the following steps:

Obtain a code corresponding to the parameter to be transmitted;

Synthesizing the parameter, the code, and the general data into protocol data according to a preset protocol format;

The protocol data is transmitted out.

Optionally, the step of synthesizing the parameter, the code, and the general data into protocol data according to a preset protocol format includes:

Combining the code and the parameters into content data;

The content data and the universal data are combined into the protocol data.

Optionally, the step of combining the code and the parameter into content data comprises:

Put the code before the argument to form a string.

Optionally, the step of combining the content data and the universal data into the protocol data comprises: inserting the content data into a location between two general data, combined into the protocol data.

Optionally, the two general data are a device number and a verification value, respectively.

Optionally, the parameter has at least one parameter, and each parameter corresponds to a code.

Optionally, the step of acquiring the code corresponding to the parameter to be transmitted further includes:

When the request for the detection function of the new target parameter is received, the target parameter detection function is added;

A corresponding code is assigned to the target parameter.

Detect whether the conditions of the transmission parameters are met;

The parameters are obtained when the conditions of the transmission parameters are met.

Optionally, the step of detecting whether the condition of the transmission parameter is met includes:

Determining whether the current transmission parameter is reached according to a preset time rule;

If so, the condition that the transmission parameter is satisfied is determined.

Determine whether the parameter reaches the warning value according to the preset warning rule;

The embodiment of the invention simultaneously provides a data transmission device, the device comprising:

a code acquisition module, configured to obtain a code corresponding to the parameter to be transmitted;

a data synthesizing module configured to synthesize the parameter, the code, and general data into protocol data according to a preset protocol format;

A data transmission module configured to transmit the protocol data outward.

Optionally, the data synthesizing module includes:

a first combination unit configured to combine the code and the parameter into content data;

A second combining unit is arranged to combine the content data and the universal data into the protocol data.

Optionally, the first combining unit is configured to: before the parameter is placed in the parameter, form a character string.

Optionally, the second combining unit is configured to insert the content data into a position between two common data, and combine the data into the protocol data.

Optionally, the device further includes a function opening module, where the function opening module includes:

Adding a unit, being set to increase a target parameter detection function when receiving a request for a detection function of a new target parameter;

An allocation unit configured to assign a corresponding code to the target parameter.

Optionally, the device further includes a parameter obtaining module, where the parameter obtaining module includes:

a detecting unit configured to detect whether a condition of the transmission parameter is satisfied;

The acquisition unit is set to acquire the parameters when the conditions of the transmission parameters are met.

Optionally, the detecting unit includes:

The first determining unit is configured to determine, according to the preset time rule, whether the current transmission parameter is reached;

The first determining unit is configured to determine a condition that the transmission parameter is satisfied if the time at which the transmission parameter is currently reached.

Optionally, the detecting unit includes:

The second determining unit is configured to determine whether the parameter reaches the warning value according to the preset warning rule;

The second determining unit is configured to determine a condition that the transmission parameter is satisfied if the parameter reaches the warning value.

Embodiments of the present invention also provide an in-vehicle device including a memory, a processor, and at least one application stored in the memory and configured to be executed by the processor, the application being configured to be used for The aforementioned data transmission method is performed.

Beneficial effect

A data transmission method provided by an embodiment of the present invention, by assigning a corresponding code to a parameter, and using the code to parse the type of the identification parameter, so that the in-vehicle device does not need to transmit a fixed type of parameter every time, but needs to transmit according to actual conditions. The parameters, thus increasing the flexibility of data transmission, saving data traffic and bandwidth resources, reducing the burden on the server. On this basis, the user can also add a new parameter detection function as needed, and the in-vehicle device only needs to assign a code to the newly added parameters, thereby greatly improving the scalability of the function.

DRAWINGS

1 is a flow chart of a first embodiment of a data transmission method of the present invention;

2 is a correspondence table of codes and parameters in an embodiment of the present invention;

Figure 3 is a flow chart showing a second embodiment of the data transmission method of the present invention;

4 is a block diagram showing a first embodiment of a data transmission device of the present invention;

Figure 5 is a block diagram of the data synthesizing module of Figure 4;

6 is a block diagram of a parameter acquisition module of FIG. 4;

Figure 7 is a block diagram of the detecting unit of Figure 6;

Figure 8 is a block diagram of the detecting unit of Figure 6;

Figure 9 is a block diagram showing a second embodiment of the data transmission device of the present invention;

Figure 10 is a block diagram of the function opening module in Figure 9.

The implementation, functional features, and advantages of the present invention will be further described in conjunction with the embodiments.

BEST MODE FOR CARRYING OUT THE INVENTION

It is understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

The embodiments of the present invention are described in detail below, and the examples of the embodiments are illustrated in the drawings, wherein the same or similar reference numerals are used to refer to the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the drawings are intended to be illustrative of the invention and are not to be construed as limiting.

The singular forms "a", "an", "the" It is to be understood that the phrase "comprise" or "an" Integers, steps, operations, components, components, and/or groups thereof. It will be understood that when an element is referred to as being "connected" or "coupled" to another element, it can be directly connected or coupled to the other element. Further, "connected" or "coupled" as used herein may include either a wireless connection or a wireless coupling. The phrase "and/or" used herein includes all or any one and all combinations of one or more of the associated listed.

Those skilled in the art will appreciate that all terms (including technical and scientific terms) used herein have the same meaning as commonly understood by one of ordinary skill in the art to which the invention belongs, unless otherwise defined. It should also be understood that terms such as those defined in a general dictionary should be understood to have meaning consistent with the meaning in the context of the prior art, and will not be idealized or excessive unless specifically defined as here. The formal meaning is explained.

Those skilled in the art can understand that the "terminal" and "terminal device" used herein include both a wireless signal receiver device, a device having only a wireless signal receiver without a transmitting capability, and a receiving and transmitting hardware. A device having a device capable of performing two-way communication receiving and transmitting hardware on a two-way communication link. Such devices may include cellular or other communication devices having a single line display or a multi-line display or a cellular or other communication device without a multi-line display; PCS (Personal Communications) Service, personal communication system), which can combine voice, data processing, fax and/or data communication capabilities; PDA (Personal Digital Assistant), which can include radio frequency receiver, pager, Internet/Intranet access, network Browser, notepad, calendar and/or GPS (Global Positioning System) receiver; conventional laptop and/or palmtop computer or other device with and/or conventional lap including radio frequency receiver Type and / or palmtop or other device. As used herein, "terminal", "terminal device" may be portable, transportable, installed in a vehicle (aviation, sea and/or land), or adapted and/or configured to operate locally, and/or Run in any other location on the Earth and/or space in a distributed form. The "terminal" and "terminal device" used herein may also be a communication terminal, an internet terminal, a music/video playing terminal, and may be, for example, a PDA, a MID (Mobile Internet Device), and/or have a music/video playback. Functional mobile phones can also be smart TVs, set-top boxes and other devices.

Those skilled in the art can understand that the server used herein includes, but is not limited to, a computer, a network host, a single network server, a plurality of network server sets, or a cloud composed of a plurality of servers. Here, the cloud is composed of a large number of computers or network servers based on Cloud Computing, which is a kind of distributed computing, a super virtual computer composed of a group of loosely coupled computers. In the embodiment of the present invention, communication can be implemented by any communication means between the server, the terminal device and the WNS server, including but not limited to, mobile communication based on 3GPP, LTE, WIMAX, and computer network communication based on TCP/IP and UDP protocols. And short-range wireless transmission based on Bluetooth and infrared transmission standards.

The data transmission method of the embodiment of the present invention is mainly applied to an in-vehicle device, and may be applied to other electronic devices, such as a smart home device, a mobile terminal, a personal computer, etc., which is not limited by the present invention. The following is a detailed description of the application to the in-vehicle device.

Referring to FIG. 1, a first embodiment of a data transmission method of the present invention is proposed. The method includes the following steps:

S11. Obtain a code corresponding to the parameter to be transmitted.

In the embodiment of the present invention, the in-vehicle device assigns a corresponding code to each parameter. When there is a parameter to be transmitted, the in-vehicle device acquires a code corresponding to the parameter to be transmitted. The parameters for each transmission may be one type, or two or more types. When at least two types of parameters are used, the codes of each type of parameters are respectively obtained.

The parameters are such as speed, mileage, longitude, dimension, tire pressure, ignition/extinguish status, and the like. The code may be numbers, letters, symbols, etc., such as 01, 02, 03, AA, BB, and the like.

As shown in FIG. 2, it is a correspondence table between parameters and codes in the embodiment of the present invention. Among them, the parameters include speed, ignition/extinguishing state, tire pressure, longitude, latitude, etc., and their corresponding codes are 01, 02, 03, 04, 05, and so on.

Further, before step S11, the in-vehicle device further acquires parameters that need to be transmitted. Specifically, the in-vehicle device detects whether the condition of the transmission parameter is met, and when the condition of the transmission parameter is met, the parameter is acquired.

When the parameter is the hardware data of the vehicle, since the hardware data generally does not change, the in-vehicle device transmits only once when the user is successfully registered (or when the in-vehicle device and the external device are successfully connected for the first time), that is, when the user registration is successfully detected. When the vehicle device and the external device are successfully connected for the first time, the in-vehicle device determines the condition that the parameter of the transmission hardware data is satisfied.

When the parameter is the car software version (such as the car phone Bluetooth version, the car system version), the in-vehicle device is transmitted once when the user is successfully registered (or when the in-vehicle device and the external device are successfully connected for the first time), whenever the software version is updated. Then, transfer it again. That is, when it is detected that the user registration is successful (or the in-vehicle device is successfully connected to the external device for the first time) or the software version is updated, the in-vehicle device determines the condition that the parameter of the transmission car software version is satisfied.

When the parameter is the vehicle alarm data, the system sets the warning value according to the actual situation, the user can also set the warning value according to the actual needs, and according to the warning value production alert rule, the vehicle device determines the vehicle alarm data according to the preset warning rule. Whether the parameter reaches the warning value, when the warning value is reached, the condition that the parameter of the transmission vehicle alarm data is satisfied is determined.

For example, when the speed exceeds the warning value, the condition that the transmission speed data is satisfied is determined to perform the overspeed alarm; when the acceleration exceeds the warning value, the condition that the transmission acceleration is satisfied is determined to perform the sudden acceleration and deceleration alarm; when the position data ( If the latitude and longitude exceeds the warning value, the condition that the transmission position data is satisfied is determined to perform an electronic fence alarm.

When the parameter is the trip data, the in-vehicle device can upload the trip data according to the user's ignition/extinguish as a trip. That is, when it is detected that the vehicle is switched from the ignition state to the flameout state, the condition that the parameter of the transmission stroke data is satisfied is determined.

When the parameter is real-time data of the vehicle (such as latitude and longitude, speed, ignition state, tire pressure, etc.), the in-vehicle device determines whether the current time of transmitting the real-time data of the vehicle is reached according to a preset time rule, and if so, the determination is satisfied. The condition of this parameter for transmitting real-time data of the vehicle. The time rules are, for example, periodic transmissions or scheduled transmissions, such as transmissions every 30 seconds, transmissions once or some times a day, and the like.

S12. Synthesize code, parameters, and general data into protocol data according to a preset protocol format.

The embodiment of the invention presets a protocol format, including a composition format of the content data and a composition format of the final protocol data. The in-vehicle device first combines the code and parameters into content data, such as placing the code before the parameter to form a string, or of course placing the code after the parameter. The in-vehicle device then combines the content data and the general data into protocol data, such as inserting the content data into a location between the two general data, combined into protocol data.

For example, the format of the protocol data is as follows:

Start character protocol number device number content data verification value time end

The protocol data includes general data and content data, and the general data includes a start character, a protocol number, a device number, a verification value, a time, and a terminator, and the content data is inserted between the device number and the verification value. It can also be inserted into other locations as needed, which is not limited by the present invention.

Since the raw data of the obtained parameters is decimal or state value, before combining the code and parameters into content data, some parameters need to be converted according to the actual situation. For example: for speed, it needs to be converted to octal, the length range is 00-FF; for the ignition/extinguish state, it needs to be converted to binary, 0 and 1, respectively, such as 0 for flameout, 1 for ignition; for tire pressure, need to be converted to Octal, length range is 0000-FFFF; for longitude, keep decimal, the length is fixed to ten, the first three digits are the number before the decimal point, the last digit 1 represents the east longitude, 0 represents the west longitude, and vice versa, such as 1139207991 represents the east longitude 113.920799.

S13. Transmit protocol data to the outside.

In the embodiment of the present invention, the in-vehicle device uploads protocol data to the server, and the server parses the protocol data into user data according to a preset protocol format, and stores the data, and then sends the user to the terminal device actively or according to the request of the user terminal device. data. The terminal device receives the user data and outputs it, as shown on the display.

For example, suppose the protocol data received by the server is:

28 01 656565 030050 68 180203 142723 29

The server parses the protocol data into: start character 28, protocol number 01, device number 656565, content data 030050, verification value 68, time 180203 142723, and terminator 29. Among them, in the content data 030050, 03 represents the tire pressure, 0050 is the octal data, 80 is converted to decimal, indicating that the tire pressure is 80 kPa; time 180203 142723 represents 14:27:23 on February 3, 2018.

The content data in the foregoing protocol data only includes one parameter of the tire pressure. In a specific application, the content data may also include two or more parameters, because each parameter has a corresponding code, so the server can parse different parameters according to the code. .

In a specific implementation, the user can install a specific application (APP) on the terminal device, log in to the server through the application, register the account, and bind the corresponding vehicle and the in-vehicle device, and the in-vehicle device, the server, and the terminal device sequentially establish a communication connection, and To transmit data, of course, the in-vehicle device can also establish a communication connection with the terminal device.

In some embodiments, the in-vehicle device can also directly send the protocol data to the terminal device of the user. After receiving the protocol data, the terminal device parses the protocol data according to the preset protocol format, obtains the user data, and outputs the data, such as in the display. Displayed on the screen.

Therefore, the in-vehicle device is more flexible in transmitting data, and only needs necessary data to be transmitted according to actual needs at a time, thereby reducing the amount of data transmission, saving data traffic and bandwidth resources, and reducing the pressure on the server.

Further, as shown in FIG. 3, in the second embodiment of the data transmission method of the present invention, before step S11, the following steps are further included:

S09: When receiving the request for the detection function of the new target parameter, the target parameter detection function is added.

S10. Assign a corresponding code to the target parameter.

In this embodiment, the user can customize the detection function of adding some parameters. When the in-vehicle device receives the request for the detection function of the new target parameter, the target parameter detection function is added, and the corresponding code is assigned to the target parameter.

For example, the user installs a tire pressure peripheral for the vehicle, and the tire pressure peripheral data is communicated with the vehicle device through a USB interface or a serial port. The terminal device receives the user's instruction to turn on the tire pressure detection function through the application, and displays to the user all the peripheral devices that the current software version can adapt, and the user selects the corresponding peripheral device. The terminal device sends a request to the server to turn on the tire pressure detecting function, and the server forwards the request to the in-vehicle device. After receiving the request, the on-board device analyzes whether the basic function of the vehicle includes the tire pressure detection function. If not, the tire pressure detection function is added in the basic function of the vehicle, and the corresponding code is assigned to the tire pressure, and the basic function is also The tire pressure detection function is associated with the tire pressure activation code in the real-time data module. Subsequent real-time data modules will increase the detection of tire pressure, and the vehicle-mounted equipment will add the tire pressure data to the real-time data of the vehicle and upload it to the server. The user enters the vehicle machine page through the terminal device or refreshes the page, and the terminal device sends a request to the server to acquire the real-time data of the vehicle, and displays it to the user, and the user can view the real-time data of the vehicle including the tire pressure. If the vehicle does not actually install a peripheral or cancel a peripheral, the corresponding data will not be displayed.

Therefore, the user can add peripherals to the vehicle according to actual needs, thereby increasing the corresponding parameter detection function and improving the scalability of the function.

In the data transmission method of the embodiment of the present invention, by assigning a corresponding code to the parameter, the code is used to analyze the type of the identification parameter, so that the in-vehicle device does not need to transmit a fixed type of parameter every time, but transmits the required parameter according to the actual situation, so Increased data transmission flexibility, saving data traffic and bandwidth resources, reducing the burden on the server. On this basis, the user can also add a new parameter detection function as needed, and the in-vehicle device only needs to assign a code to the newly added parameters, thereby greatly improving the scalability of the function.

The data transmission method using the embodiment of the present invention has the following beneficial effects:

(1), the transmission data can be adapted to the actual peripherals or adjusted according to the actual requirements of the user, more user-friendly transmission of data, strong applicability, unlimited data peripherals.

(2), no loss of security. Regardless of the original protocol or the new protocol, security verification is necessary to prevent malicious attacks on the server.

(3), software updates will not affect the use. Even if the software is updated, it only updates the format of the content data. If the previous definition of a parameter is unreasonable (for example, the speed range is too small), the data format can be added, and the original format will not change.

Referring to FIG. 4, a first embodiment of a data transmission apparatus of the present invention is provided. The apparatus includes a code acquisition module 10, a data synthesis module 20, and a data transmission module 30. The code acquisition module 10 is configured to acquire a parameter to be transmitted. The data synthesizing module 20 is configured to synthesize parameters, codes, and general data into protocol data according to a preset protocol format; and the data transmission module 30 is configured to transmit protocol data to the outside.

In the embodiment of the present invention, a corresponding code is assigned to each parameter. When there is a parameter to be transmitted, the code acquisition module 10 acquires a code corresponding to the parameter to be transmitted. The parameters of each transmission may be one type or two or more types. When at least two parameters are used, the code acquisition module 10 acquires codes of each type of parameters respectively.

The embodiment of the invention presets a protocol format, including a composition format of the content data and a composition format of the final protocol data. As shown in FIG. 5, the data synthesizing module 20 includes a first combining unit 21 and a second combining unit 22, wherein: the first combining unit 21 is arranged to combine code and parameters into content data, such as placing a code before the parameter, Forming a string, of course, the code can be placed after the parameter; the second combining unit 22 is configured to combine the content data and the general data into protocol data, such as inserting the content data into a position between two common data, combining For protocol data.

For example, the format of the protocol data is as follows:

The protocol data includes general data including a start character, a protocol number, a device number, a verification value, a time, and a terminator, and the second combining unit 22 can insert the content data into two common data of the device number and the verification value. The position between the two can be inserted into other positions as needed, which is not limited by the present invention.

Since the original data of the acquired parameters is a decimal or state value, before combining the code and the parameters into the content data, the first combining unit 21 also needs to perform some conversion on the parameters according to the actual situation. For example: for speed, it needs to be converted to octal, the length range is 00-FF; for the ignition/extinguish state, it needs to be converted to binary, 0 and 1, respectively, such as 0 for flameout, 1 for ignition; for tire pressure, need to be converted to Octal, length range is 0000-FFFF; for longitude, keep decimal, the length is fixed to ten, the first three digits are the number before the decimal point, the last digit 1 represents the east longitude, 0 represents the west longitude, and vice versa, such as 1139207991 represents the east longitude 113.920799.

In the embodiment of the present invention, the data transmission module 30 uploads protocol data to the server, and the server parses the protocol data into user data according to a preset protocol format, and stores the data, and then actively or according to the request of the user terminal device, to the terminal device. Send user data. The terminal device receives the user data and outputs it, as shown on the display.

For example, suppose the protocol data received by the server is:

28 01 656565 030050 68 180203 142723 29

In some embodiments, the data transmission module 30 can also directly send the protocol data to the terminal device of the user. After receiving the protocol data, the terminal device parses the protocol data according to the preset protocol format, acquires the user data, and outputs the data, such as Displayed on the display.

Further, the apparatus further includes a parameter acquisition module 40 configured to acquire parameters that need to be transmitted. Specifically, the parameter obtaining module 40 includes a detecting unit 41 and an obtaining unit 42 as shown in FIG. 6, wherein: the detecting unit 41 is configured to detect whether the condition of the transmission parameter is met; and the obtaining unit 42 is configured to satisfy the condition of the transmission parameter. When, get the parameters.

When the parameter is the hardware data of the vehicle, since the hardware data generally does not change, the in-vehicle device transmits only once when the user is successfully registered (or when the in-vehicle device and the external device are successfully connected for the first time), that is, the detecting unit 41 detects the user. When the registration is successful (or when the in-vehicle device and the external device are successfully connected for the first time), the condition for satisfying the parameter of transmitting the hardware data of the vehicle is determined.

When the parameter is the car software version (such as the car phone Bluetooth version, the car system version), the in-vehicle device is transmitted once when the user is successfully registered (or when the in-vehicle device and the external device are successfully connected for the first time), whenever the software version is updated. Then, transfer it again. That is, when the detecting unit 41 detects that the user registration is successful (or the first connection between the in-vehicle device and the external device is successful) or the software version is updated, the in-vehicle device determines the condition that the parameter of the transmission car software version is satisfied.

When the parameter is the trip data, the in-vehicle device can upload the trip data according to the user's ignition/extinguish as a trip. That is, when the detecting unit 41 detects that the vehicle is switched from the ignition state to the flameout state, it determines the condition that the parameter of the transmission stroke data is satisfied.

When the parameter is real-time data of the vehicle (such as latitude and longitude, speed, ignition state, tire pressure, etc.), the detecting unit 41 includes a first determining unit 411 and a first determining unit 412, as shown in FIG. 7, wherein: the first determining unit 411, configured to determine, according to a preset time rule, whether the current time of transmitting the real-time data of the vehicle is reached. The first determining unit 412 is configured to determine that the transmission is satisfied if the time of transmitting the real-time data of the vehicle is reached. The real-time data of the vehicle is the condition of this parameter. The time rules are, for example, periodic transmissions or scheduled transmissions, such as transmissions every 30 seconds, transmissions once or some times a day, and the like.

When the parameter is the vehicle alarm data, the system sets the warning value according to the actual situation. The user can also set the warning value according to the actual needs and produce the warning rule according to the warning value. At this time, as shown in FIG. 8, the detecting unit 41 includes a second determining unit 413 and a second determining unit 414, wherein: the second determining unit 413 is configured to determine whether the parameter reaches the warning value according to the preset warning rule; The determining unit 414 is configured to determine that the condition of the transmission parameter is satisfied if the parameter reaches the warning value.

For example, when the speed exceeds the warning value, the second determining unit 414 determines that the condition of the transmission speed data is satisfied to perform the overspeed alarm; when the acceleration exceeds the warning value, the second determining unit 414 determines that the condition of the transmission acceleration is satisfied. When the position data (such as latitude and longitude) exceeds the warning value, the second determining unit 414 determines that the condition of the transmission position data is satisfied to perform the electronic fence alarm.

Further, as shown in FIG. 9, in the second embodiment of the data transmission device of the present invention, the device further includes a function opening module 50. As shown in FIG. 10, the function opening module 50 includes an adding unit 51 and an allocating unit 52. , wherein: the adding unit 51 is configured to increase the target parameter detecting function when receiving the request for the detecting function of the newly added target parameter; the assigning unit 52 is configured to allocate the corresponding code for the target parameter.

The data transmission device of the embodiment of the present invention, by assigning a corresponding code to a parameter, and using the code to analyze the type of the identification parameter, so that the in-vehicle device does not need to transmit a fixed type of parameter every time, but needs to transmit according to actual conditions. The parameters, thus increasing the flexibility of data transmission, saving data traffic and bandwidth resources, reducing the burden on the server. On this basis, the user can also add a new parameter detection function as needed, and the in-vehicle device only needs to assign a code to the newly added parameters, thereby greatly improving the scalability of the function.

The invention also proposes an in-vehicle device comprising a memory, a processor and at least one application stored in the memory and configured to be executed by the processor, the application being configured to execute a data transmission method. The data transmission method includes the following steps: acquiring a code corresponding to a parameter to be transmitted; synthesizing the parameter, the code, and the general data into protocol data according to a preset protocol format; and transmitting the protocol data to the outside. The data transmission method described in this embodiment is the data transmission method in the foregoing embodiment of the present invention, and details are not described herein again.

Those skilled in the art will appreciate that the present invention includes apparatus that is directed to performing one or more of the operations described herein. These devices may be specially designed and manufactured for the required purposes, or may also include known devices in a general purpose computer. These devices have computer programs stored therein that are selectively activated or reconfigured. Such computer programs may be stored in a device (eg, computer) readable medium or in any type of medium suitable for storing electronic instructions and coupled to a bus, respectively, including but not limited to any Types of disks (including floppy disks, hard disks, optical disks, CD-ROMs, and magneto-optical disks), ROM (Read-Only Memory), RAM (Random Access Memory), EPROM (Erasable Programmable Read-Only) Memory, rewritable programmable read only memory), EEPROM (Electrically Erasable Programmable Read-Only Memory, flash memory, magnetic card or light card. That is, a readable medium includes any medium that is stored or transmitted by a device (eg, a computer) in a readable form.

Those skilled in the art will appreciate that each block of the block diagrams and/or block diagrams and/or flow diagrams and combinations of blocks in the block diagrams and/or block diagrams and/or flow diagrams can be implemented by computer program instructions. . Those skilled in the art will appreciate that these computer program instructions can be implemented by a general purpose computer, a professional computer, or a processor of other programmable data processing methods, such that the processor is executed by a computer or other programmable data processing method. The blocks of the disclosed structure and/or block diagrams and/or flow diagrams or blocks specified in the various blocks.

Those skilled in the art can understand that the steps, measures, and solutions in the various operations, methods, and processes that have been discussed in the present invention may be alternated, changed, combined, or deleted. Further, other steps, measures, and schemes of the various operations, methods, and processes that have been discussed in the present invention may be alternated, modified, rearranged, decomposed, combined, or deleted. Further, the steps, measures, and solutions in the various operations, methods, and processes disclosed in the present invention may also be alternated, modified, rearranged, decomposed, combined, or deleted.

The above is only the preferred embodiment of the present invention, and is not intended to limit the scope of the invention, and the equivalent structure or equivalent process transformations made by the description of the invention and the drawings are directly or indirectly applied to other related The technical field is equally included in the scope of patent protection of the present invention.

Claims

A data transmission method includes the following steps:

Obtain a code corresponding to the parameter to be transmitted;

Synthesizing the parameter, the code, and the general data into protocol data according to a preset protocol format;

The protocol data is transmitted out.
The data transmission method according to claim 1, wherein said step of synthesizing said parameter, said code and general data into protocol data according to a preset protocol format comprises:

Combining the code and the parameters into content data;

The content data and the universal data are combined into the protocol data.
The data transmission method according to claim 2, wherein said step of combining said code and said parameter into content data comprises:

Put the code before the argument to form a string.
The data transmission method according to claim 2, wherein said step of combining said content data and said general data into said protocol data comprises:

The content data is inserted into a location between two general data, combined into the protocol data.
The data transmission method according to claim 4, wherein the two general data are a device number and a verification value, respectively.
The data transmission method according to claim 1, wherein said parameter has at least one of which each parameter corresponds to a code.
The data transmission method according to claim 1, wherein the step of acquiring the code corresponding to the parameter to be transmitted further comprises:

When the request for the detection function of the new target parameter is received, the target parameter detection function is added;

A corresponding code is assigned to the target parameter.
The data transmission method according to claim 1, wherein the step of acquiring the code corresponding to the parameter to be transmitted further comprises:

Detect whether the conditions of the transmission parameters are met;

The parameters are obtained when the conditions of the transmission parameters are met.
The data transmission method according to claim 8, wherein the step of detecting whether the condition of the transmission parameter is satisfied comprises:

Determining whether the current transmission parameter is reached according to a preset time rule;

If so, the condition that the transmission parameter is satisfied is determined.
The data transmission method according to claim 8, wherein the step of detecting whether the condition of the transmission parameter is satisfied comprises:

Determine whether the parameter reaches the warning value according to the preset warning rule;

If so, the condition that the transmission parameter is satisfied is determined.
A data transmission device comprising:

a code acquisition module, configured to obtain a code corresponding to the parameter to be transmitted;

a data synthesizing module configured to synthesize the parameter, the code, and general data into protocol data according to a preset protocol format;

A data transmission module configured to transmit the protocol data outward.
The data transmission device according to claim 11, wherein said data synthesis module comprises:

a first combination unit configured to combine the code and the parameter into content data;

A second combining unit is arranged to combine the content data and the universal data into the protocol data.
The data transmission device according to claim 12, wherein said first combining unit is arranged to form said character string before said parameter is placed before said parameter.
The data transmission device according to claim 12, wherein said second combining unit is arranged to insert said content data into a position between two general data, combined into said protocol data.
The data transmission device according to claim 14, wherein said two general data are a device number and a verification value, respectively.
The data transmission device according to claim 11, wherein said parameter has at least one parameter, and each parameter corresponds to a code.
The data transmission device of claim 11, wherein the device further comprises a function opening module, the function opening module comprising:

Adding a unit, being set to increase a target parameter detection function when receiving a request for a detection function of a new target parameter;

An allocation unit configured to assign a corresponding code to the target parameter.
The data transmission device of claim 11, wherein the device further comprises a parameter acquisition module, the parameter acquisition module comprising:

a detecting unit configured to detect whether a condition of the transmission parameter is satisfied;

The acquisition unit is set to acquire the parameters when the conditions of the transmission parameters are met.
The data transmission device according to claim 18, wherein said detecting unit comprises:

The first determining unit is configured to determine, according to the preset time rule, whether the current transmission parameter is reached;

The first determining unit is configured to determine a condition that the transmission parameter is satisfied if the time at which the transmission parameter is currently reached.
An in-vehicle device comprising a memory, a processor, and at least one application stored in the memory and configured to be executed by the processor, wherein the application is configured to perform the method of claim 1. The data transmission method described.