CN208968830U - A kind of host computer and automotive diagnostic system - Google Patents
A kind of host computer and automotive diagnostic system Download PDFInfo
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- CN208968830U CN208968830U CN201821596580.5U CN201821596580U CN208968830U CN 208968830 U CN208968830 U CN 208968830U CN 201821596580 U CN201821596580 U CN 201821596580U CN 208968830 U CN208968830 U CN 208968830U
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Abstract
The utility model embodiment is related to automobile technical field, discloses a kind of host computer and automotive diagnostic system.Wherein, host computer includes: communication device, including at least two wireless communication modules, and the wireless transmission protocol that each wireless communication module at least two wireless communication modules is supported is different；Controller connect at least two wireless communication modules, is used for: choosing the first wireless communication module at least two wireless communication modules；It is established and is communicated to connect based on the first wireless communication module and slave computer；When monitoring that the communication quality communicated by the first wireless communication module with slave computer is unsatisfactory for communication requirement, first wireless communication module is switched into the second wireless communication module at least two wireless communication modules, and is established and is communicated to connect based on the second wireless communication module and slave computer.The host computer can solve the host computer of automotive diagnostic system and the single problem of communication mode of slave computer, improve the flexibility that host computer is communicated with slave computer.
Description
Technical field
The utility model embodiment is related to automobile technical field more particularly to a kind of host computer, and has the host computer
Automotive diagnostic system.
Background technique
Automotive diagnostic system is mainly used for realizing the detection to the failure of automobile, for example, monitoring the generation of vehicle failure, looking into
Bright trouble location and reason carry out fault cues and record fault message etc..Automotive diagnostic system usually may include upper
Machine and slave computer.Automotive diagnostic system is usually to pass through host computer to be communicated with slave computer to carry out information exchange, also, slave computer
With auto communication to carry out information exchange, to realize the detection to the failure of automobile.
In the process of implementing the utility model, at least there are the following problems in the related technology for inventor's discovery: automobile is examined
The host computer of disconnected system and the communication mode of slave computer are single.And if single communication mode causes to communicate under this kind of communication mode
When poor quality, the communication of automotive diagnostic system will affect, to influence the detection to vehicle failure.
Utility model content
The purpose of the utility model is to provide a kind of host computer and automotive diagnostic systems, for solving vehicle diagnosis system
The host computer of system and the single problem of the communication mode of slave computer.
The utility model embodiment discloses following technical solution:
In a first aspect, the utility model embodiment provides a kind of host computer, comprising:
Communication device, including at least two wireless communication modules, and it is each at least two wireless communication module
The wireless transmission protocol that wireless communication module is supported is different；
Controller is connect at least two wireless communication module, and the controller is used for:
Choose the first wireless communication module at least two wireless communication module；
It is established and is communicated to connect based on first wireless communication module and slave computer；
When monitoring that the communication quality communicated by first wireless communication module with the slave computer is unsatisfactory for
When communication requirement, first wireless communication module is switched into the second channel radio at least two wireless communication module
Believe module, and is established and communicated to connect based on second wireless communication module and the slave computer.
Optionally, the host computer further include: switching circuit, the switching circuit include switch input terminal and at least two
Output switching terminal, the switch input terminal are connect with the controller, at least two output switching terminal and described at least two
A one-to-one connection of wireless communication module；
If the controller chooses the first wireless communication module at least two wireless communication module, the control
Device is used for by controlling the switching circuit, so that power supply is first wireless communication module power supply；
If the controller switches to first wireless communication module at least two wireless communication module
Second wireless communication module, the controller are used for by controlling the switching circuit, so that power supply is described second wireless
Communication module power supply.
Optionally, at least two output switching terminal includes first switch output end and second switch output end, described
First switch output end is connect with first wireless communication module, the second switch output end and second wireless communication
Module connection.
Optionally, the switching circuit includes: the first triode, the second triode, third transistor and NAND gate；
The base stage of first triode is connect with the controller, the emitter ground connection of first triode, described
The collector of first triode is connect as the first switch output end with first wireless communication module；
The base stage of second triode is connect with the controller, and the emitter of second triode is connected to described
The collector of power supply, second triode is connect as the first switch output end with first wireless communication module；
The base stage of the third transistor is connect with the output end of the NAND gate, and the emitter of the third transistor connects
It is connected to the power supply, the collector of the third transistor is as the second switch output end and second radio communication mold
Block connection；
The first input end of the NAND gate is connect with the controller, and the second input terminal of the NAND gate is connected to institute
State power supply.
Optionally, first triode is NPN pipe, and second triode is PNP pipe, third transistor is PNP pipe.
Optionally, the controller chooses the first wireless communication module at least two wireless communication module, packet
It includes:
Obtain present communications parameter；
According to the present communications parameter, the first radio communication mold at least two wireless communication module is chosen
Block.
Optionally, the present communications parameter comprises at least one of the following: the host computer and the slave computer are current
Distance, current environment interference strength, current desired message transmission rate, safety of current desired data transmission etc.
Grade, current desired level of power consumption.
Optionally, the controller chooses the first wireless communication module at least two wireless communication module, packet
It includes:
According to default selection sequence, first radio communication mold is chosen from least two wireless communication module
Block.
Optionally, first wireless communication module is switched at least two wireless communication module by the controller
In the second wireless communication module, comprising:
Detect the communication quality of each wireless communication module at least two wireless communication module；
Communication quality is selected from least two wireless communication module higher than first wireless communication module
Second wireless communication module；
First wireless communication module is switched into second wireless communication module.
Optionally, the host computer further includes input unit, and the input unit is connect with the controller；
The user's operation is transmitted to the controller for receiving user's operation by the input unit；
First wireless communication module is switched at least two wireless communication module by the controller
Two wireless communication modules, comprising:
According to user's operation, second wireless communication module at least two wireless communication module is selected；
First wireless communication module is switched into second wireless communication module.
Second aspect, the utility model embodiment provide a kind of automotive diagnostic system, comprising: including host computer and such as
The upper host computer, the host computer are connect by the communication device with the slave computer.
In the utility model embodiment, the host computer of automotive diagnostic system includes at least two wireless communication modules, on
Position prow first chooses the first wireless communication module and slave computer foundation communication connection at least two wireless communication modules, when upper
It is upper when position machine monitors that the communication quality communicated by the first wireless communication module with slave computer is unsatisfactory for communication requirement
First wireless communication module is switched to the second wireless communication module at least two wireless communication modules by machine, and passes through second
Wireless communication module and slave computer, which are established, to be communicated to connect, and can solve the host computer of automotive diagnostic system and the communication party of slave computer
The single problem of formula improves the flexibility that host computer is communicated with slave computer, to guarantee automotive diagnostic system to vehicle diagnosis
Stability.
Detailed description of the invention
Fig. 1 is the schematic diagram of the application scenarios of automotive diagnostic system provided by the embodiment of the utility model；
Fig. 2 is the schematic diagram of automotive diagnostic system provided by the embodiment of the utility model；
Fig. 3 is the schematic diagram that host computer provided by the embodiment of the utility model and slave computer establish communication connection；
Fig. 4 is a kind of schematic diagram of host computer provided by the embodiment of the utility model；
Fig. 5 is controller provided by the embodiment of the utility model makes power supply be at least two nothings by control switch circuit
The schematic diagram of line communication module power supply；
Fig. 6 is the physical circuit figure of Fig. 5；
Fig. 7 is a kind of flow diagram of the communication means of automotive diagnostic system provided by the embodiment of the utility model.
Specific embodiment
The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model
Description, it is clear that the embodiments are a part of the embodiments of the present invention rather than all of the embodiments.Based on this reality
It is obtained by those of ordinary skill in the art without making creative efforts every other with the embodiment in novel
Embodiment is fallen within the protection scope of the utility model.
As long as in addition, technical characteristic involved in the various embodiments of the present invention described below each other it
Between do not constitute conflict and can be combined with each other.
Fig. 1 is the application scenarios of automotive diagnostic system provided by the embodiment of the utility model.Include: in the application scenarios to
Diagnostic device 100 and automotive diagnostic system 200.Wherein, which is connected with to diagnostic device 100.
The automotive diagnostic system 200 is for waiting for that diagnostic device 100 detects to this, for example, automotive diagnostic system 200 is right
This waits for that the performance of diagnostic device 100 and failure are detected, such as sensing of the diagnosis to the electronic control system of diagnostic device 100
Whether the work of device, actuator state and electronic control unit ECU (Electronic Control Unit) is normal, so as to
Guarantee the safety for waiting for that diagnostic device 100 uses.
Wherein, should to diagnostic device 100 be detected object, can be any suitable vehicles or walking-replacing tool,
Such as automobile, electric vehicle.This waits for that the quantity of diagnostic device 100 can be to be one or more, when this waits for that diagnostic device 100 is
When multiple, automotive diagnostic system 200 can be attached with to each in diagnostic device 100 to diagnostic device 100, with right respectively
It is each to be diagnosed to diagnostic device 100.
Fig. 2 is automotive diagnostic system provided by the embodiment of the utility model, which includes: host computer
21 and slave computer 22.Wherein, host computer 21 and slave computer 22 connect.
For example, seeing Fig. 3, host computer 21 includes communication device 211.Host computer 21 passes through communication device 211 and bottom
Machine 22 connects, to realize the information exchange with slave computer 22.Also, slave computer 22 is also connect with to diagnostic device 100, with
Information exchange is carried out to diagnostic device 100, to realize the detection for treating the failure of diagnostic device 100.
Wherein, treat diagnostic device 100 carry out fault detection during, slave computer 22 with to diagnostic device 100 it
Between can by diagnosis interface such as OBD (On-Board Diagnostic) interface be connected, with read to diagnostic device 100
The status information of error code or acquisition to diagnostic device 100 in ECU, wherein the error code refers to inside ECU for every kind of event
Hinder a kind of coding of definition.Status information to diagnostic device 100 includes the state letter of each system to diagnostic device 100
Breath, such as status information, the status information of tire system of engine system.
Error code is obtained in slave computer 22 and by the error code after the status information of diagnostic device 100 and to diagnostic device
100 status information is forwarded to host computer 21.Host computer 21 can pass through diagnostic software protocol package after receiving the error code
Error code is parsed, to obtain diagnostic result information, and by display display diagnostic result information and to the shape of diagnostic device 100
State information treats diagnostic device 100 to realize to find out the position broken down and reason and removing error code etc.
Detection.
Below with reference to Fig. 3 and Fig. 4, the host computer 21 of automotive diagnostic system 200 is specifically described.
Host computer 21 includes: communication device 211 and controller 212.Wherein, controller 212 is connect with communication device 211.
Communication device 211 includes at least two wireless communication modules.Also, it is each at least two wireless communication modules
The wireless transmission protocol that wireless communication module is supported is different.That is, communication device 211 can support at least two different nothings
Line transport protocol, so as to the controller 212 of host computer 21 select as needed different wireless transmission protocol and slave computer 22 into
Row communication, to improve the flexibility that host computer 21 is communicated with slave computer 22.
For example, at least two wireless communication modules may include the first wireless communication module 2111 and the second radio communication mold
Block 2112 etc..Wherein, the wireless transmission protocol that the first wireless communication module 2111 and the second wireless communication module 2112 are supported
It is different.For example, the first wireless communication module 2111 can be WiFi module, the second wireless communication module 2112 can be bluetooth mould
Block.
Wherein, the wireless transmission protocol that communication device 211 can be supported may include two kinds or two kinds in following agreement
More than: WiFi communication agreement (wireless Fidelity), general packet radio service communication protocol (General Packet
Radio Service, GPRS), 3G/4G, infrared communication protocol, ZigBee communication agreement, Bluetooth communication protocol, radio frequency identification it is logical
Believe agreement (Radio Frequency IDentification, RFID), Zigbee communication agreement etc..That is, communication device
211 may include WiFi module, GPRS module, 3G/4G module, infrared module, bluetooth module etc..
During automotive diagnostic system 200 is treated diagnostic device 100 and diagnosed, host computer 21 and slave computer are needed
It is communicated between 22, to carry out the interaction of information.And during diagnosis, it is difficult when host computer 21 is communicated with slave computer 22
Exempt from there can be the case where communication of the host computer 21 and slave computer 22 of extraneous factor interference.If host computer 21 and slave computer 22
It is communicated using a kind of communication mode namely the communication device 211 of host computer 21 can only support a kind of wireless transmission protocol, when
It is influenced by extraneous factor and causes host computer 21 and the communication quality under the communication mode of slave computer 22 bad or even cannot be into
When row communication, it will the communication of automotive diagnostic system 200 is influenced, so that the diagnosis of diagnostic device 100 is treated in influence, or even not
It is able to achieve the diagnosis for treating diagnostic device 100.
For example, by taking host computer 21 is communicated with slave computer 22 only with bluetooth as an example, when host computer 21 and slave computer 22
Distance when increasing, the position of the mobile slave computer 22 of the user for such as holding slave computer 22 causes host computer 21 at a distance from slave computer 22
Increase, since bluetooth is a kind of short-distance wireless communication technology, the increase of communication distance will affect host computer 21 and slave computer 22
Communication quality, or even when host computer 21 at a distance from slave computer 22 be more than bluetooth can communicate maximum distance when, due to upper
Machine 21 is communicated with slave computer 22 only with bluetooth, therefore, host computer 21 can be made not can be carried out with slave computer 22 and communicated, from
And influence to treat the diagnosis of diagnostic device 100.
Therefore, in order to avoid influencing communication of the host computer 21 with slave computer 22 using single communication mode the case where, improves
The flexibility of communication, each wireless communication module in host computer 21 provided in this embodiment at least two wireless communication modules
The wireless transmission protocol supported is different, so that controller 212 can according to circumstances be chosen at least two wireless communication modules
Any wireless communication module, and established and communicated to connect by selected wireless communication module and slave computer 22.
Controller 212 can be any suitable device with certain logical operation and processing capacity, such as control unit
(Control Unit, CU), micro-control unit (Microcontroller Unit, MCU) or single-chip microcontroller etc..Controller 212 with
Communication device 211 connects, and controller 212 can choose any wireless communication module in communication device 211 and build with slave computer 22
Vertical communication connection.
Specifically, controller 212 chooses the first wireless communication module 2111 at least two wireless communication module,
And suggest communicating to connect with slave computer 22 by the first selected wireless communication module 2111, to carry out letter with slave computer 22
Breath interaction, for example, controller 212 can receive the data of the transmission of slave computer 22.Wherein, which may come from sets wait diagnose
Standby 100, for example, the data can be data that slave computer 22 is acquired to diagnostic device 100 (such as to diagnostic device
Error code in 100 ECU), slave computer 22 simultaneously sends the data to controller 212, so that controller 212 can pass through
One wireless communication module 2111 receives the data.
In some implementations, which can also originate from slave computer 22.For example, when slave computer 22 is vehicle communication
Interface (Vehicle Communication Interface, VCI) or specific purpose tool (TPMS specific purpose tool or other special tools
Tool) when, the status information to diagnostic device 100 which can detect for slave computer 22, as tire pressure status information (including
Tire pressure temperature information, pressure information etc.).
During controller 212 is communicated with slave computer 22 by the first wireless communication module 2111, controller
212 real-time monitoring communication qualities, to guarantee stability, the reliability etc. of communication.Also, when controller 212 monitors to pass through institute
When stating the communication quality that the first wireless communication module 2111 is communicated with the slave computer 22 and being unsatisfactory for communication requirement, controller
212 switch to first wireless communication module 2111 the second radio communication mold at least two wireless communication module
Block 2112, and established and communicated to connect with the slave computer 22 by second wireless communication module 2112.
Wherein, when controller 212 is communicated with slave computer 22 by the first wireless communication module 2111, can pass through
Communication quality index measures whether communication quality meets communication requirement.Communication quality index includes but is not limited to: communication speed is led to
Believe safety and reliability, communication accuracy, communication convenience etc..
For example, when controller 211 monitors to carry out by first wireless communication module 2111 with the slave computer 22
When the communication speed of communication cannot reach the speed required in communication requirement, then show that the communication quality is unsatisfactory for communication requirement,
At this point, the control of controller 212 carries out the switching of communication module, it is wireless that the first wireless communication module 2111 is also switched to second
Communication module 2112, and established and communicated to connect with slave computer 22 by the second wireless communication module 2112, to improve communication
Flexibility guarantees safety, reliability, stability etc. that the controller 212 of host computer 21 is communicated with slave computer 22.
In some implementations, controller 212 chooses the first channel radio at least two wireless communication module
Letter module 2111 may include: to obtain present communications parameter；According to the present communications parameter, it is wireless to choose described at least two
The first wireless communication module 2111 in communication module.
Wherein, the present communications parameter comprises at least one of the following: the host computer and the slave computer it is current away from
From, current environment interference strength, current desired message transmission rate, the security level of current desired data transmission,
Current desired level of power consumption.
Since the wireless transmission protocol that each wireless communication module at least two wireless communication modules is supported is different,
The communication characteristic of wireless communication module corresponding to different wireless transmission protocols is different, and therefore, controller 212 can be based on working as
Preceding messaging parameter chooses the first wireless communication module 2111, to better meet current communication requirement.Also, controller
212 can be based on one of present communications parameter or the first wireless communication module 2111 of a variety of selections.
For example, it is assumed that at least two wireless communication modules include: WiFi module, bluetooth module and GPRS module.If control
Device 212 is based on one of present communications parameter and chooses the first wireless communication module 2111, as described above host computer 21 with it is described
For the current distance of slave computer 22, the case where at a distance from the host computer 21 and the slave computer 22 are current farther out, due to
GPRS module is farther compared to the distance that WiFi module, bluetooth module can be communicated, and therefore, controller 212 chooses at least two
GPRS module in a wireless communication module is as the first wireless communication module 2111.
If controller 212 is based on the first wireless communication module of a variety of selections 2111 in present communications parameter, such as with current
For the security level of desired data transmission, current desired level of power consumption, in current desired data transmission
Security level is high and the current low situation of desired level of power consumption, since bluetooth module is compared to WiFi module, GPRS module,
Safety when communication is higher and power consumption is lower, and therefore, controller 212 chooses the bluetooth mould at least two wireless communication modules
Block is as the first wireless communication module 2111.
In some implementations, controller 212 chooses the first channel radio at least two wireless communication module
Letter module 2111 may include: to choose described first from least two wireless communication module according to default selection sequence
Wireless communication module 2111.
Wherein, which can be pre-configured in controller 212.The default selection sequence can be according to function
Consumption, user's history choose what one or more modes such as mode, communication quality determined.User's history selection may include: choosing
The time etc. of the frequency, selection that take.The wireless communication module that selection desired by user can be determined by the frequency of selection, passes through
The time of selection can determine wireless communication module selected by user's the last time.
Controller 212 can choose the first wireless communication module 2111 based on default selection sequence.For example, at least two nothings
Line communication module includes: " A module ", " B module ", " C module ".Wherein, the level of power consumption of " A module " is that 1, user's history is chosen
Frequency level be 1, communication quality 2；The frequency level that the level of power consumption of " B module " is 2, user's history is chosen is 2, communication
Quality is 1；The frequency level that the level of power consumption of " C module " is 2, user's history is chosen is 3, communication quality 3.Level of power consumption is got over
The power consumption that height characterizes wireless communication module communication is higher, and the higher characterization user of frequency level that user's history is chosen selects the nothing
The number of line communication module is more, and communication quality level is higher, and the characterization wireless communication module communication quality is better.It is postulated that in order to
Energy conservation, using power consumption as the first choice for determining default selection sequence, then in this case, controller 212 chooses " A module " as the
One wireless communication module 2111.
In some implementations, the default selection sequence is adjustable, preferably to adapt to the needs of communication.Example
Such as, using communication quality as the first choice for determining default selection sequence, then in this case, controller 212 chooses " C module " conduct
First wireless communication module 2111.
When controller 212 monitors the communication communicated by first wireless communication module 2111 with slave computer 22
When quality is unsatisfactory for communication requirement, controller 212 can be wireless by described first by way of automatic or receive user's operation
Communication module 2111 switches to the second wireless communication module 2112 at least two wireless communication module.
In some implementations, the controller 212 by first wireless communication module 2111 switch to it is described extremely
The second wireless communication module 2112 in few two wireless communication modules, comprising: detection at least two wireless communication module
In each wireless communication module communication quality；Communication quality is selected from least two wireless communication module higher than described
Second wireless communication module 2112 of the first wireless communication module 2111；First wireless communication module 2111 is switched into institute
State the second wireless communication module 2112.
In some implementations, the controller 212 by first wireless communication module 2111 switch to it is described extremely
The second wireless communication module 2112 in few two wireless communication modules, comprising: according to user's operation, select described at least two
Second wireless communication module 2112 in a wireless communication module；By first wireless communication module switching 2111 to institute
State the second wireless communication module 2112.
Wherein, which can be user input instruction, and the instruction is selected for switching for characterizing user
Second wireless communication module 2112 of one wireless communication module 2111.Controller 212 can obtain user behaviour by input unit
Make, to need to switch wireless communication module according to user.
For example, host computer 21 can further include the input unit.The input unit is for receiving user's operation, input unit
Controller 212 can be forwarded it to after receiving user's operation, so that controller 212 acquires user's operation, thus
Select second wireless communication module 2112 at least two wireless communication module, and by first channel radio
Letter module 2111 switches to second wireless communication module 2112.Wherein, which can be any suitable input
Equipment, such as keyboard, mouse, camera, scanner, light pen, touch screen, key.
Optionally, in order to enhance signal strength when host computer 21 is communicated with slave computer 22, at least two channel radio
Believe the corresponding communication antenna 214 of each wireless communication module in module.For example, the first wireless communication module 2111 is one corresponding
Communication antenna 214, the second wireless communication module 2112 also correspond to a communication antenna 214.
Optionally, for the communication mode of user's more intuitive understanding host computer 21 and slave computer 22, host computer 21 is also
Including display.Display is connect with controller 212, used wireless when for showing that host computer 21 is communicated with slave computer 22
Communication module.Wherein, which is a kind of human interface device, can be any suitable display device, and such as display screen is shown
Show panel etc..
It should be noted that in some embodiments, the input unit, display in various embodiments, can be with
It is not the necessary component part of host computer 21, namely in some other embodiments, in the input unit and display extremely
Few one is dispensed.For example, in some other embodiments, host computer 21 may include input unit.
In addition, host computer 21 further includes having memory (not shown), which connect with controller 212.Wherein, it stores
Device can be connect with controller 212 by bus or other modes.
Memory as a kind of non-volatile computer readable storage medium storing program for executing, can be used for storing non-volatile software program,
Non-volatile computer executable program and module.Controller 212 is stored in memory non-volatile soft by running
Part program, instruction and module, to realize function of the controller 212 in the utility model embodiment, as described in choosing extremely
The first wireless communication module 2111 in few two wireless communication modules；Based on first wireless communication module 2111 and bottom
Machine 22 establishes communication connection；When monitor to be communicated by first wireless communication module 2111 with the slave computer 22
When communication quality is unsatisfactory for communication requirement, first wireless communication module 2111 is switched at least two wireless communication
The second wireless communication module 2112 in module, and established based on second wireless communication module 2112 with the slave computer 22
Communication connection etc..
Memory may include storing program area and storage data area, wherein storing program area can storage program area, extremely
Application program required for a few function；Storage data area, which can be stored, uses created data etc. according to electronic equipment.This
Outside, memory may include high-speed random access memory, can also include nonvolatile memory, for example, at least a disk
Memory device, flush memory device or other non-volatile solid state memory parts.In some embodiments, it includes phase that memory is optional
The memory remotely located for controller 212, these remote memories can pass through wireless network connection to host computer 21.Institute
The embodiment for stating wireless network includes but is not limited to local area network, Metropolitan Area Network (MAN) and wide area network and combinations thereof.
In some implementations, above-mentioned memory can also be a component part namely controller for controller 212
212 include that memory or the memory are integrated in controller 212.
Optionally, which further includes switching circuit.As shown in figure 5, the switching circuit 215 includes switch input
End 2151 and at least two output switching terminals, the switch input terminal 2151 are connect with the controller 212, and described at least two
Output switching terminal and the one-to-one connection of at least two wireless communication modules.
For example, at least two output switching terminal includes first switch output end 21521 and second switch output end
21522, the first switch output end 21521 is connect with first wireless communication module 2111, the second switch output
End 21522 is connect with second wireless communication module 2112.
Controller 212 is used for through control switch circuit 215, so that power supply is selected by controller 212 for under
Position machine establishes the first wireless communication module 2111 or the power supply of the second wireless communication module 2112 of communication connection.
For example, if the controller 212 chooses the first wireless communication module at least two wireless communication module
2111, the controller 212 is used for by controlling the switching circuit 215, so that power supply is first radio communication mold
Block 2111 is powered, and establishes communication connection with slave computer 22 so that controller 212 is based on first wireless communication module 2111；If
First wireless communication module 2111 is switched to second at least two wireless communication module by the controller 212
Wireless communication module 2112, the controller 212 are used for by controlling the switching circuit 215, so that power supply is described the
The power supply of two wireless communication modules 2112 is built so that controller 212 is based on second wireless communication module 2112 with slave computer 22
Vertical communication connection.
Power supply is made to be extremely by control switch circuit referring to Fig. 6, being controller provided by the embodiment of the utility model
The circuit diagram of few two wireless communication module power supplies.Wherein, the switching circuit 215 includes: the first triode T1, the two or three pole
Pipe T2, third transistor T3 and NAND gate NAND1.
The base stage (pole B) of the first triode T1 is connect with the controller 212, the transmitting of the first triode T1
Pole (pole E) is grounded GND, and the collector (pole C) of the first triode T1 is used as first switch output end 21521 and described first
Wireless communication module 2111 connects.
The base stage (pole B) of the second triode T2 is connect with the controller 212, the transmitting of the second triode T2
Pole (pole E) is connected to the power vd D, and the collector (pole C) of the second triode T2 is used as first switch output end 21521
It is connect with first wireless communication module 2111.
The base stage (pole B) of the third transistor T3 is connect with the output end of the NAND gate NAND1, the three or three pole
The emitter (pole E) of pipe T3 is connected to the power vd D, and the collector (pole C) of the third transistor T3 is used as second switch
Output end 21522 is connect with second wireless communication module 2111.
The first input end of the NAND gate NAND1 is connect with the controller 212, and the second of the NAND gate NAND1
Input terminal is connected to the power vd D.
In some implementations, the first triode T1 is NPN pipe, and the second triode T2 is PNP pipe, third
Triode T3 is PNP pipe.
It should be noted that in some other embodiments, above-mentioned first triode T1, the second triode T2, the three or three
Pole pipe T3 can also use the device of other functions that above-mentioned first triode T1, the second triode T2, third transistor T3 can be achieved
Part is substituted.For example, substituting above-mentioned first triode T1, the second triode T2, third transistor T3 with metal-oxide-semiconductor.
Optionally, the switching circuit 215 further includes first resistor R1 and second resistance R2.Wherein, first resistor R1 connects
It is connected between the second triode T2 and power vd D, to protect the second triode T2；Second resistance R2 is connected to third transistor
Between T3 and power vd D, to protect third transistor T3.
Wherein, controller 212 makes power vd D for the confession of at least two wireless communication modules by control switch circuit 215
The principle of electricity is as follows:
When controller 212 chooses the first wireless communication module 2111 at least two wireless communication module, control
The signal that device 212 processed is input to switching circuit 215 is low level signal, at this point, the first triode T1 is disconnected, the second triode T2
Conducting, so that power vd D is first wireless communication module 2111 power supply, so that the first wireless communication module 2111
Work establishes communication connection with slave computer 22 so that controller 212 is based on first wireless communication module 2111.Also, it is logical
The signal for crossing the NAND gate NAND1 output is high level signal, and third transistor T3 is disconnected, so that the second wireless communication
Module 2112 does not work.
When controller 212 switches to first wireless communication module 2111 at least two wireless communication module
The second wireless communication module 2112 when, the signal that controller 212 is input to switching circuit 215 is high level signal, at this point, the
One triode T1 conducting, the second triode T2 is disconnected, so that the first wireless communication module 2111 does not work.Also, pass through
The signal of NAND gate NAND1 output is low level signal, third transistor T3 conducting, so that power vd D is described the
Two wireless communication modules 2112 power supply, so that the second wireless communication module 2112 works, so that controller 212 is based on described
Second wireless communication module 2112 is established with slave computer 22 to be communicated to connect.
It should be noted that above-mentioned host computer 21 can be any suitable equipment for capableing of operational diagnostics software, for example,
Personal computer, smart phones, tablets, wearable devices etc., or the diagnostic device specially provided, such as diagnosis plate.
Above-mentioned slave computer 22 can be any equipment that may connect to diagnostic device 100 and automotive diagnostic installation 21, example
Such as VCI (Vehicle Connection Interface) equipment, TPMS (Tire Pressure Monitoring System)
Specific purpose tool or other special tool for automobiles etc..Slave computer 22 may include control unit and with the first wireless communication module
The 2111 identical third wireless communication modules of wireless communication protocol supported, and propped up with the second wireless communication module 2112
Identical 4th wireless communication module of the wireless communication protocol held.Control unit respectively with third wireless communication module and the 4th nothing
The connection of line communication module.
Slave computer 22 is to be responsible for the relay device between diagnostic device 100 and host computer 21 by the various of host computer 21
It is transmitted to for treating the instruction that diagnostic device 100 is diagnosed to diagnostic device 100, and will be returned to diagnostic device 100
The status information to diagnostic device 100 be transmitted to host computer 21.Wherein, slave computer 22 and to can be between diagnostic device 100
It is connected by diagnosis interface such as OBD interface.
In practical applications, host computer 21 and slave computer 22 can be with tie-in sales, namely sell automotive diagnostic system 200；
Any one of host computer 21 and slave computer 22 can also individually be sold.
It should also be noted that, the above-mentioned name to each component part in host computer 21 and automotive diagnostic system 200 is only
It is the purpose for mark, is not construed as the limitation to the embodiments of the present invention.In addition, it is above-mentioned to upper 21 and
The quantity of each component part can be one or more in automotive diagnostic system 200, and in addition to special instruction, the quantity is at this
It can be unrestricted in utility model implementation.
In the utility model embodiment, the controller 212 of host computer 21 chooses at least two wireless communication modules first
In the first wireless communication module 2111 establish and communicate to connect with slave computer 22, when controller 212 monitor it is wireless by first
When the communication quality that communication module 2111 is communicated with slave computer 22 is unsatisfactory for communication requirement, controller 212 is wireless by first
Communication module 2111 switches to the second wireless communication module 2112 at least two wireless communication modules, and wireless by second
Communication module 2111 and slave computer 22, which are established, to be communicated to connect, and can solve the communication of the host computer and slave computer of automotive diagnostic system
The single problem of mode improves the flexibility that host computer is communicated with slave computer, to guarantee automotive diagnostic system to vehicle diagnosis
Stability.
Fig. 7 is a kind of flow diagram of the communication means of automotive diagnostic system provided by the embodiment of the utility model.It should
The communication means of automotive diagnostic system can be executed by the host computer 21 of the automotive diagnostic system in above-described embodiment, for example, can be with
It is executed by the controller 212 of the host computer 21 in above-described embodiment.Wherein, the host computer includes communication device, the communication
Device includes at least two wireless communication modules, and each wireless communication module institute at least two wireless communication module
The wireless transmission protocol of support is different.
Referring to Fig. 7, the communication means of the automotive diagnostic system includes:
701: the host computer chooses the first wireless communication module at least two wireless communication module.
In some implementations, the host computer chooses the first channel radio at least two wireless communication module
Believe module, comprising: the host computer obtains present communications parameter；The host computer chooses institute according to the present communications parameter
State the first wireless communication module at least two wireless communication modules.The current messaging parameter comprises at least one of the following: institute
State host computer and the slave computer it is current at a distance from, it is current environment interference strength, current desired message transmission rate, current
Security level, the current desired level of power consumption of desired data transmission.
In some implementations, the host computer chooses the first channel radio at least two wireless communication module
Believe module, comprising: the host computer chooses described the according to default selection sequence from least two wireless communication module
One wireless communication module.Wherein, which can choose mode, communication quality etc. one according to power consumption, user's history
What kind or various ways determined.
702: the host computer is established by first wireless communication module and the slave computer and is communicated to connect.
703: monitoring to be communicated by first wireless communication module with the slave computer when the host computer
When communication quality is unsatisfactory for communication requirement, first wireless communication module is switched at least two nothing by the host computer
The second wireless communication module in line communication module, and communicated by second wireless communication module with slave computer foundation
Connection.
In some implementations, first wireless communication module is switched at least two nothing by the host computer
The second wireless communication module in line communication module, comprising: at least two wireless communication modules described in the upper computer detection
The communication quality of each wireless communication module；The host computer selects communication quality from least two wireless communication module
Higher than the second wireless communication module of first wireless communication module；The host computer cuts first wireless communication module
Shift to second wireless communication module.
In some implementations, first wireless communication module is switched at least two nothing by the host computer
The second wireless communication module in line communication module, comprising: the host computer selects described at least two according to user's operation
Second wireless communication module in wireless communication module；First wireless communication module is switched to institute by the host computer
State the second wireless communication module.
It should be noted that in step 701-703 described in the utility model embodiment not detailed description technical detail,
It can refer to the specific descriptions in above-described embodiment, therefore, just repeat no more here.
In the utility model embodiment, host computer chooses the first channel radio at least two wireless communication modules first
Believe that module and slave computer are established to communicate to connect, when host computer monitors to be communicated by the first wireless communication module with slave computer
Communication quality when being unsatisfactory for communication requirement, the first wireless communication module is switched at least two wireless communication modules by host computer
In the second wireless communication module, and established and communicated to connect by the second wireless communication module and slave computer, can solve automobile
The host computer of diagnostic system and the single problem of the communication mode of slave computer improve the flexibility that host computer is communicated with slave computer,
To guarantee automotive diagnostic system to the stability of vehicle diagnosis.
It should be noted that the apparatus embodiments described above are merely exemplary, wherein described be used as separation unit
The unit that part illustrates may or may not be physically separated, and component shown as a unit can be or can also
Not to be physical unit, it can it is in one place, or may be distributed over multiple network units.It can be according to reality
Need that some or all of the modules therein is selected to achieve the purpose of the solution of this embodiment.
By the description of above embodiment, those of ordinary skill in the art can be understood that each embodiment can borrow
Help software that the mode of general hardware platform is added to realize, naturally it is also possible to pass through hardware.Those of ordinary skill in the art can manage
All or part of the process in the solution realization embodiment method is can be by the relevant hardware of computer program instructions come complete
At the program can be stored in computer-readable storage medium, and the program is when being executed, it may include such as each method
Embodiment process.Wherein, the storage medium can be magnetic disk, CD, read-only memory (Read-Only
Memory, ROM) or random access memory (RandomAccessMemory, RAM) etc..
Finally, it should be noted that above embodiments are only to illustrate the technical solution of the utility model, rather than its limitations；
Under the thinking of the utility model, it can also be combined between the technical characteristic in above embodiments or different embodiments,
Step can be realized with random order, and there are many other variations of the different aspect of the utility model as described above, be
Simplicity, they do not provide in details；Although the utility model is described in detail with reference to the foregoing embodiments, this
The those of ordinary skill in field it is understood that it is still possible to modify the technical solutions described in the foregoing embodiments,
Or equivalent replacement of some of the technical features；And these are modified or replaceed, and do not make the sheet of corresponding technical solution
Matter departs from the scope of the technical solutions of the embodiments of the present invention.
Claims (10)
1. a kind of host computer characterized by comprising
Communication device, including at least two wireless communication modules, and it is each wireless at least two wireless communication module
The wireless transmission protocol that communication module is supported is different；
Controller is connect at least two wireless communication module, and the controller is used for:
Choose the first wireless communication module at least two wireless communication module；
It is established and is communicated to connect based on first wireless communication module and slave computer；
When monitoring that the communication quality communicated by first wireless communication module with the slave computer is unsatisfactory for communicating
When demand, first wireless communication module is switched into the second radio communication mold at least two wireless communication module
Block, and established and communicated to connect based on second wireless communication module and the slave computer.
2. host computer according to claim 1, which is characterized in that the host computer further include: switching circuit, the switch
Circuit includes switch input terminal and at least two output switching terminals, and the switch input terminal is connect with the controller, it is described extremely
Few two output switching terminals and the one-to-one connection of at least two wireless communication modules；
If the controller chooses the first wireless communication module at least two wireless communication module, the controller is used
The switching circuit is controlled in passing through, so that power supply is first wireless communication module power supply；
If first wireless communication module is switched to second at least two wireless communication module by the controller
Wireless communication module, the controller are used for by controlling the switching circuit, so that power supply is second wireless communication
Module for power supply.
3. host computer according to claim 2, which is characterized in that at least two output switching terminal includes first switch
Output end and second switch output end, the first switch output end are connect with first wireless communication module, and described second
Output switching terminal is connect with second wireless communication module.
4. host computer according to claim 3, which is characterized in that the switching circuit includes: the first triode, the two or three
Pole pipe, third transistor and NAND gate；
The base stage of first triode is connect with the controller, the emitter ground connection of first triode, and described first
The collector of triode is connect as the first switch output end with first wireless communication module；
The base stage of second triode is connect with the controller, and the emitter of second triode is connected to the electricity
The collector in source, second triode is connect as the first switch output end with first wireless communication module；
The base stage of the third transistor is connect with the output end of the NAND gate, and the emitter of the third transistor is connected to
The collector of the power supply, the third transistor connects as the second switch output end and second wireless communication module
It connects；
The first input end of the NAND gate is connect with the controller, and the second input terminal of the NAND gate is connected to the electricity
Source.
5. host computer according to claim 4, which is characterized in that first triode is NPN pipe, the two or three pole
Pipe is PNP pipe, third transistor is PNP pipe.
6. host computer according to claim 1-5, which is characterized in that the controller chooses described at least two
The first wireless communication module in wireless communication module, comprising:
Obtain present communications parameter；
According to the present communications parameter, the first wireless communication module at least two wireless communication module is chosen.
7. host computer according to claim 6, which is characterized in that the present communications parameter comprises at least one of the following:
At a distance from the host computer and the slave computer are current, current environment interference strength, current desired message transmission rate, when
Security level, the current desired level of power consumption of preceding desired data transmission.
8. host computer according to claim 7, which is characterized in that the controller chooses at least two wireless communication
The first wireless communication module in module, comprising:
According to default selection sequence, first wireless communication module is chosen from least two wireless communication module.
9. host computer according to claim 1, which is characterized in that the host computer further includes input unit, the input
Device is connect with the controller；
The user's operation is transmitted to the controller for receiving user's operation by the input unit；
First wireless communication module is switched to the second nothing at least two wireless communication module by the controller
Line communication module, comprising:
According to user's operation, second wireless communication module at least two wireless communication module is selected；
First wireless communication module is switched into second wireless communication module.
10. a kind of automotive diagnostic system, which is characterized in that including slave computer and as claim 1-9 it is described in any item on
Position machine, the host computer are connect by the communication device with the slave computer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821596580.5U CN208968830U (en) | 2018-09-28 | 2018-09-28 | A kind of host computer and automotive diagnostic system |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201821596580.5U CN208968830U (en) | 2018-09-28 | 2018-09-28 | A kind of host computer and automotive diagnostic system |
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| CN208968830U true CN208968830U (en) | 2019-06-11 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113242532A (en) * | 2021-05-12 | 2021-08-10 | 深圳市道通科技股份有限公司 | Vehicle communication device, WiFi connection method and vehicle diagnosis system |
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2018
- 2018-09-28 CN CN201821596580.5U patent/CN208968830U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113242532A (en) * | 2021-05-12 | 2021-08-10 | 深圳市道通科技股份有限公司 | Vehicle communication device, WiFi connection method and vehicle diagnosis system |
| CN113242532B (en) * | 2021-05-12 | 2023-05-12 | 深圳市道通科技股份有限公司 | Vehicle communication device, wiFi connection method and vehicle diagnosis system |
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