CN103138982B - Local interconnected network (LIN) slave nodes - Google Patents
Local interconnected network (LIN) slave nodes Download PDFInfo
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- CN103138982B CN103138982B CN201110391373.2A CN201110391373A CN103138982B CN 103138982 B CN103138982 B CN 103138982B CN 201110391373 A CN201110391373 A CN 201110391373A CN 103138982 B CN103138982 B CN 103138982B
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Abstract
Provided are a control method and a control system for local interconnected network (LIN) slave nodes. The LIN slave nodes comprise an electronic control part, wherein the electronic control part comprises an LIN single detection receiving and controlling module, a processing module and an LIN signal sending module, wherein the processing module and the LIN signal sending module can be forbidden or activated, the LIN signal detection receiving and controlling module is maintained in an activation status in a power on situation and has the functions of waking up signal identification and conducting activation and forbiddance to the processing module and the LIN signal sending module, the LIN signal detection receiving and controlling module sends a detected signal on a LIN bus to the processing module and controls the processing module and the LIN signal sending module, the processing model controls the activation or the forbiddance of the LIN signal sending module and / or the processing model according to the judgment whether the signal is related to a node or not, and the LIN signal sending module receives a signal output by the processing module and send the signal to the LIN bus. The control method and the control system for the LIN slave nodes offer a LIN node which is used for achieving low energy consumption.
Description
Technical field
The present invention relates to LIN (Local Interconnect Network) networking technology area, more particularly to a kind of LIN
Network is from node.
Background technology
LIN agreements are one of popular protocols for being applied at present on automobile, are included using the LIN network structures of LIN agreements
One host node (master node) and multiple from node (slave node) is described to be up to 15 from node.Can from node
To use as detection part (sensor) or execution unit (actuator), such as in-car various detection modules and Motor drive mould
Block.Due to many from interstitial content, if each can be made low as much as possible from the power consumption of node, it will help reduce whole LIN networks
Power consumption.
In addition, for be applied to automotive environment from node, use environment is also required that from node reduces as much as possible power consumption,
Particularly with the hot environment in such as enging cabin, its continuous operating ambient temperature is up to 125 degree.In such hot environment
Under, even increasing the consequence that minimum extra power consumption will all greatly increase device temperature rise, reduce device reliability, this is resulted in
The device of greater degree can only be adopted, increases manufacturing cost.
The Chinese invention patent application of Application No. 201010264206.7, discloses a kind of electric expansion valve.Referring to figure
1, the electric expansion valve includes electric control part 10 and mechanical part 20, and wherein electric control part 10 includes that bus signals are received/sent
Module 11, central processing module 12, data memory module 15, step motor drive module 13.But the patent application without reference to
How wherein electric control part is controlled to reach the content for preferably reducing node power consumption.
United States Patent (USP) US 7701943, disclose it is a kind of be applied to LIN bus network from node.Referring to Fig. 2, should be from section
Point is only just activated by disabling LIN sending modules 66 when signal is received when needing to send LIN signals, real
Now reduce the effect of whole node power consumption.Technical scheme described in the patent is applied to the executor for not requiring continuously to work,
It is as shown in Figure 2 from node 52, the defect of the invention will become apparent from.In this applications, corresponding appointing is completed in executor
Sleep state is can be at after business, that is, the processor 62 (PROCESSING DEVICE) and performance element (HVAC in illustrating
LOUVRE MOTOR UNIT) can be with disabled or in a dormant state.In general, the time of executor's sleep is much big
The time of task is performed in executor, if can not make the equipment forbidden during executor sleeps or enter dormancy, will be made
Into unnecessary extra power consumption.And executor is the length of one's sleep longer, it is not necessary to extra power consumption it is more notable, the invention
Imperfection part is also more obvious.
One executor is applied to the invention scheme, and when executor drives controlled component actuation, average current is
100mA, when controlled part be failure to actuate and all modules keep activation when average current be 10mA, wherein have more than 8mA be by
What processing module and drive module were caused.If the time that i.e. executor is failure to actuate has reached 12.5 times of executor's working time
More than, it is not necessary to extra power consumption will be greater than real work power consumption.In being normally applied, this ratio is also higher, causes volume
Outer power consumption is far longer than actual power loss.
It is different types of in network from node and to deposit for LIN networks.When bus dormancy, some nodes can be complete
Into sleep state；Even and if during bus wake-up, some nodes can also be partially into sleep state.Using foregoing invention scheme
During all nodes being applied in network, huge extra power consumption will be caused.More from interstitial content, LIN networks are bigger, defect
It is bigger.Scheme described in the patent only just activates the mode of LIN sending modules when needing to send LIN signals, on partial extent
Really whole node power consumption can be reduced, but such effect is not notable.Referring to Fig. 2, it is seen that whole node connects except LIN
Module 60, LIN sending modules 66 are received, also including processing module 62, IGFS sensor assemblies 64 need not use processing module
62 and keep during (IGFS) sensor assembly 64 the two modules for state of activation, can equally cause extra power consumption.LIN sends
Module only carries out logic level transition function, and processing module 62 is the control centre of whole node, and sensor assembly 64 is work(
Energy execution unit, relative to LIN sending modules, the two functions of modules are more complex, and power consumption is also much bigger, and the invention does not have
Involve how to reduce the power consumption of the maximum module of power consumption in node, be where the invention has much room for improvement.
Therefore, a kind of LIN of low energy consumption how is provided from node, be that those skilled in the art need the technology for solving to ask
Topic.
The content of the invention
The technical problem to be solved in the present invention is to provide a kind of LIN from node, for realizing reducing energy consumption.
The present invention provides a kind of LIN networks from node, including electric control part；
The electric control part includes that LIN signal detection is received and control module and LIN signal detection reception and control
The connected processing module of module and the LIN signal transmitting modules being connected with the processing module；
The processing module and the LIN signal transmitting modules being capable of disabled or activation；
The LIN signal detection is received and control module remains state of activation under open state, and with wake-up
Signal identification function, the processing module and LIN signal transmitting modules are performed respectively activation, disabling function；The LIN letters
Number detection receive and control module the signal in the LIN buses of detection is sent to into the processing module；And to the process mould
Block and LIN signal transmitting modules are controlled；
The processing module received according to the LIN signal detection and control module output signal analysis result judge
Whether the signal is relevant with this node, and activates or disable the LIN signals according to the analysis result control relevant with this node
Sending module and/or processing module itself；
LIN signal transmitting modules, receive the signal of the processing module output, output signals to LIN buses.
Preferably, the LIN networks further include power module from node：Activation shape is remained under open state
State, by power line external power source input is received, and is that the LIN signal detection is received and control module, LIN signals send mould
Block, processing module are powered；The LIN signal detection reception and control module and processing module are by the control electric power source pair of module
Whether the power supply of the LIN signal transmitting modules or processing module supplies realizes activating or disabling the LIN signal transmitting modules
Or processing module.
Preferably, the LIN signal detection is received and control module detection receives total from LIN in the first signalling channel
Signal on line, the signal level for meeting LIN agreements is converted to and meets the logic level that the processing module is required, by the
Binary signal passage is exported to the processing module；
The LIN signal detection is received and control module passes through the 7th signalling channel output signal to the power module
Output is controlled；
The LIN signal detection is received and control module is sent out the LIN signals by the 8th signalling channel output signal
Module is sent to be controlled；
LIN signal transmitting modules, receive signal of the processing module by the output of the 4th signalling channel, by the 5th letter
Number multi-channel output signal is to the LIN buses.
Preferably, the LIN signal detection is received and control module passes through the 8th signalling channel output signal to the LIN
Signal transmitting module performs disabling or the order for activating.
Preferably, the electric control part is further included：Detection module, detects and feeds back signal to the processing module；
The detection module is directly powered by external power source；
Or, the LIN networks further include mechanical part from node, and the electric control part further includes to drive mould
Block；
The drive module：Connect the mechanical part, for receiving the signal of the processing module output, control is described
Mechanical part, and feed back signal to the processing module；The drive module is directly powered by external power source；
Or, the LIN networks further include mechanical part from node, and the electric control part further includes to detect mould
Block and drive module；
The drive module connects mechanical part, and the detection module and drive module receive the processing module output
Signal, controls the mechanical part, the status information of mechanical part described in monitor in real time, and feeds back signal to the process mould
Block；The detection module and drive module are directly powered by external power source；The detection module and drive module are in dormancy shape
Still it is powered during state；
Processing module, receives to LIN signal detection and the signal of control module output is parsed, and is sentenced according to analysis result
Whether the disconnected signal is relevant with this node, and controls the detection module according to the analysis result relevant with this node, and/or drives
The dynamic model activation of block or dormancy.
Preferably, in LIN networks, the LIN networks have following five kinds of patterns from node, and the processing module and
The LIN networks that LIN signal detection is received and control module control is located mutually are changed from node between five kinds of patterns；
Sleep pattern：The LIN signal detection is received and control module is active, the detection module and/or
Drive module is still powered in a dormant state；The processing module, LIN signal transmitting modules are in disabled status；
First quasi- sleep pattern：The LIN signal detection is received and control module, processing module are active, and is examined
Survey module and/or drive module is still powered in a dormant state；The LIN signal transmitting modules are in disabled status；
Second quasi- sleep pattern：The LIN signal detection is received and control module, processing module, LIN signal transmitting modules
It is active, detection module and/or drive module are still powered in a dormant state；
Quasi- mode of operation：The LIN signal detection is received and control module, processing module, detection module and/or driving mould
Block is in state of activation；The LIN signal transmitting modules are in disabled status；
Complete mode of operation：The LIN signal detection is received and control module, processing module, detection module and/or driving
Module, LIN signal transmitting modules are in state of activation.
Preferably, in LIN networks,
The LIN networks under arbitrary mode of operation, when meeting following either case, are directly entered the sleep from node
Pattern：
The sleep pattern is entered by after the LIN networks pass through from node power-on self-test；Or when the LIN nets
Network from node power-on self-test by and after preset duration, the LIN networks enter sleep pattern from node；
When the LIN networks do not receive the signal from the LIN buses, and institute from node in the preset duration
State LIN networks from node need to only maintain minimum operational module to work when, the LIN networks return to the sleep mould from node
Formula；
When the LIN networks receive the LIN buses dormancy instruction from node, and the LIN networks only need dimension from node
When holding the minimum operational module work, the LIN networks return the sleep pattern from node；
When the LIN networks work in the complete mode of operation from node, and complete the dynamic of LIN network host nodes requirement
When making, any work order from the LIN buses is not received in preset duration, the LIN networks are returned from node
The sleep pattern；
When the LIN networks work in the sleep pattern from node, if the LIN signal detection receives and controls mould
Block identifies that the signal produced in the LIN buses is non-wake-up signal, then the LIN networks maintain former sleep mould from node
Formula；
The LIN networks under arbitrary mode of operation, when meeting following either case, are directly entered described first from node
Quasi- sleep pattern：
When the LIN networks work in the sleep pattern from node, if the LIN signal detection receives and controls mould
Block identifies that the signal produced in the LIN buses is bus wake-up signal, then control power module and supply to the processing module
Electricity, the processing module is in running order, and the LIN networks enter the described first quasi- sleep pattern from node；
When the LIN networks work in the first quasi- sleep pattern from node, if LIN buses produce a signal, institute
Signal input is stated to the processing module is inputed to after LIN signal detection reception and control module, if the processing module
Judgement need not be activated or disable other modules, then the LIN networks maintain the first quasi- sleep pattern from node；
When the LIN networks work in the second quasi- sleep pattern from node, if no longer needing to feed back signal to institute
LIN buses are stated, under processing module control, the LIN signal transmitting modules are disabled, and the LIN networks are returned from node
Return to the described first quasi- sleep pattern；
When the LIN networks work in the quasi- mode of operation from node, if the detection module and/or drive module
No longer need to keep state of activation, under processing module control, the detection module and/or drive module enter dormancy shape
State, the LIN networks return to the described first quasi- sleep pattern from node；
When the LIN networks work in the complete mode of operation from node, if no longer needing to feed back signal to described
LIN buses, and the detection module and/or drive module no longer need holding state of activation, in processing module control
Under, the LIN signal transmitting modules are disabled, and the detection module and/or drive module enter resting state, the LIN nets
Network returns to the described first quasi- sleep pattern from node；
The LIN networks under arbitrary mode of operation, when meeting following either case, are directly entered described second from node
Quasi- sleep pattern：
When the LIN networks work in the first quasi- sleep pattern from node, if the LIN buses produce one believing
Number, the signal input gives the processing module to input signal after LIN signal detection reception and control module, if described
Processing module judges only to need to open the LIN signal transmitting modules, and under processing module control, the LIN signals are sent out
Module is sent to be activated, the LIN networks enter the described second quasi- sleep pattern from node；
When the LIN networks work in the second quasi- sleep pattern from node, if the LIN buses produce one believing
Number, the signal by input to the LIN signal detection and receive and control module after input signal to the processing module, if
The processing module judges to activate or disable other modules, then the LIN networks maintain the second quasi- sleep mould from node
Formula；
When the LIN networks work in quasi- mode of operation from node, if the detection module and/or drive module are no longer
Need to keep state of activation, and need to feed back signal to the LIN buses, under processing module control, the detection mould
Block and/or drive module enter resting state, and the LIN signal transmitting modules are activated, and the LIN networks are returned to from node
Second quasi- sleep pattern；
When the LIN networks work in the complete mode of operation from node, if the detection module and/or driving mould
Block no longer needs to keep state of activation, and under processing module control, the detection module and/or drive module enter described
Resting state, the LIN networks return to the described second quasi- sleep pattern from node.
The LIN networks under arbitrary mode of operation, when meeting following either case, are directly entered the quasi- work from node
Operation mode：
When the LIN networks work in the first quasi- sleep pattern from node, the detection module is if desired activated
And/or drive module, under processing module control, the detection module and/or drive module are activated, the LIN nets
Network enters the quasi- mode of operation from node；
When the LIN networks work in the second quasi- sleep pattern from node, the detection module is if desired activated
And/or drive module, and no longer need to feed back signal to the LIN buses, under processing module control, the detection
Module and/or drive module are activated, and the LIN signal transmitting modules are disabled, and the LIN networks enter the standard from node
Mode of operation；
When the LIN networks work in the quasi- mode of operation from node, if the detection module and/or drive module
In continuous firing state and the LIN buses need not be fed back signal to, the LIN networks keep quasi- Working mould from node
Formula；
When the LIN networks work in the complete mode of operation from node, if no longer needing to feed back signal to described
LIN buses, under processing module control, the LIN signal transmitting modules are disabled, return to the quasi- mode of operation.
Preferably, in LIN networks, the LIN networks when node need enter the complete mode of operation when, described
Under processing module control, all modules are activated, and realize from the sleep pattern, or the first quasi- sleep pattern, or described
Either mode in second quasi- sleep pattern, or the quasi- mode of operation enters the complete mode of operation；
When the LIN network nodes are in the sleep pattern, under processing module control, correlation module is swashed
It is living, realize from the sleep pattern, the first quasi- sleep pattern, or the second quasi- sleep pattern, or quasi- mode of operation are directly entered, or
Either mode completely in mode of operation.
Preferably, the processing module sends control signals to the LIN signal detection and receives by the 6th signalling channel
And control module；
6th signalling channel includes that LIN signal detection is received and control module enables input signal cable, LIN signals and visits
Survey and receive and control module output Restart Signal line, the transmission data signal line of Universal Asynchronous Receive/dispensing device interface；
LIN signal transmitting modules are disabled simultaneously and the control command of processing module is：When LIN signal detection is received and is controlled
Module output Restart Signal line keeps high level, the transmission data signal line of Universal Asynchronous Receive/dispensing device interface keeps low
In the case of level, control LIN signal detection is received and control module enables input signal cable and is changed into low level from high level；
The control command that LIN signal transmitting modules are independently disabled is：When LIN signal detection is received and control module output weight
Open the situation for sending data signal line holding high level that holding wire keeps high level, Universal Asynchronous Receive/dispensing device interface
Under, control LIN signal detection is received and control module enables input signal cable and is changed into low level from high level；
Individually the control command of activation LIN signal transmitting modules is：When LIN signal detection is received and control module output weight
When opening holding wire and remaining high level, control LIN signal detection is received and control module enables input signal cable and become by low level
For high level.
Preferably, the 6th signalling channel further includes that LIN signal detection is received and control module input signal cable；
LIN signal transmitting modules are disabled simultaneously and the control command of processing module is：When LIN signal detection is received and is controlled
Module output Restart Signal line keeps high level, the transmission data signal line of Universal Asynchronous Receive/dispensing device interface keeps low
In the case of level, LIN signal detection are received and control module input signal cable keeps low level, control LIN signal detection connects
Receive and control module enables input signal cable and is changed into low level from high level；
The control command that LIN signal transmitting modules are independently disabled is：When LIN signal detection is received and control module output weight
Open holding wire and keep high level, the transmission data signal line holding high level of Universal Asynchronous Receive/dispensing device interface, LIN letters
In the case of number detection is received and control module input signal cable keeps low level, control LIN signal detection receives and controls mould
Block enables input signal cable and is changed into low level from high level；
The control command that processing module is independently disabled is：When LIN signal detection is received and control module output Restart Signal
In the case that line keeps high level, the reception of LIN signal detection and control module input signal cable to keep high level, control LIN letters
Number detection receive and control module enable input signal cable be changed into low level from high level；
Individually the control command of activation LIN signal transmitting modules is：When LIN signal detection is received and control module output weight
When opening holding wire and remaining high level, control LIN signal detection is received and control module enables input signal cable and become by low level
For high level.
Preferably, the detection module and/or drive module give the processing module by the 3rd channel feedback signals；
3rd signalling channel is based on Serial Peripheral Interface (SPI), including chip selection signal line, clock line, Data In-Line, number
According to output lead；
The processing module writes corresponding control command on the Data In-Line, make the detection module and/or
Drive module is activated or enters resting state.
Compared with prior art, the present invention has advantages below：
LIN networks described in the embodiment of the present invention are from node, including the processing module and LIN signal transmitting modules of electric control part
Being capable of disabled or activation；Concrete LIN signal detection is received and control module remains state of activation under open state, and
Perform activation, the function of disabling respectively with wake-up signal identification function, to the processing module and LIN signal transmitting modules；
The LIN signal detection is received and the signal in the LIN buses of detection is sent to the processing module by control module；And to institute
State processing module and LIN signal transmitting modules are controlled；
The processing module received according to the LIN signal detection and control module output signal analysis result judge
Whether the signal is relevant with this node, and activates or disable the LIN signals according to the analysis result control relevant with this node
Sending module and/or processing module itself；Hinge structure, reduces the consumption of intra-node module.
Description of the drawings
Fig. 1 is electronic expansion valve structure figure in prior art；
Fig. 2 be applied in prior art LIN bus network from node structure figure；
Fig. 3 a are LIN networks described in the embodiment of the present invention from the first structure chart of node；
Fig. 3 b are LIN networks described in the embodiment of the present invention from second structure chart of node；
Fig. 3 c are LIN networks described in the embodiment of the present invention from the third structure chart of node；
Fig. 4 is the schematic diagram that LIN networks described in the embodiment of the present invention return to sleep pattern from node from other patterns；
Fig. 5 is LIN networks described in the embodiment of the present invention from the entrance of the first quasi- sleep pattern of node and returns schematic diagram；
Fig. 6 is LIN networks described in the embodiment of the present invention from the entrance of the second quasi- sleep pattern of node and returns schematic diagram；
Fig. 7 is LIN networks described in the embodiment of the present invention from the entrance of the quasi- mode of operation of node and returns schematic diagram；
Fig. 8 is the schematic diagram that LIN networks described in the embodiment of the present invention enter complete mode of operation from node from other patterns.
Fig. 9 is LIN networks described in the embodiment of the present invention from the sleep pattern of node to the first quasi- sleep pattern flow path switch
Schematic diagram；
LIN networks described in Figure 10 embodiment of the present invention are from the first quasi- sleep pattern of node to the second quasi- sleep pattern conversion
The schematic diagram of flow process one；
LIN networks described in Figure 11 embodiment of the present invention are from the first quasi- sleep pattern of node to the second quasi- sleep pattern conversion
The schematic diagram of flow process two.
Specific embodiment
It is understandable to enable the above objects, features and advantages of the present invention to become apparent from, below in conjunction with the accompanying drawings to the present invention
Specific embodiment be described in detail.
Referring to Fig. 3 a, the figure is LIN networks described in the embodiment of the present invention from node structure figure.
A kind of LIN networks described in first embodiment of the invention include electric control part 10 from node.
The electric control part 10 include LIN signal detection receive and control module 11 and the LIN signal detection receive and
The connected processing module 12 of control module 11 and the LIN signal transmitting modules 13 being connected with the processing module 12.
The processing module 12 and the LIN signal transmitting modules 13 being capable of disabled or activation.
Present invention definition disabling：Module is in off position, and not power supply state.
Present invention definition activation：Module is in running order.
The LIN signal detection is received and control module 11 remains state of activation under open state, and with calling out
Awake signal identification function, the processing module 12 and LIN signal transmitting modules 13 are performed respectively activation, disabling function；Institute
State the reception of LIN signal detection and the signal in the LIN buses of detection is sent to the processing module 12 by control module 11；And
The processing module 12 and LIN signal transmitting modules 13 are controlled.
The processing module 12 received according to the LIN signal detection and control module 11 output signal analysis result
Judge whether the signal is relevant with this node, and the LIN is activated or disable according to the analysis result control relevant with this node
Signal transmitting module 13 and/or processing module 12 itself.
LIN signal transmitting modules 13, receive the signal of the output of processing module 12, output signals to LIN buses.
The LIN signal detection is received and control module 11 specifically can be received in the first signalling channel 1 by detection
The signal level for meeting LIN agreements is converted to and meets patrolling for the processing module requirement by the signal in LIN buses, control
Level is collected, specifically can be exported to the processing module 12 by secondary signal passage 2；
The LIN signal detection is received and control module 11 specifically can be by the output signal of the 8th signalling channel 8 to institute
State LIN signal transmitting modules 13 to be controlled；
LIN signal transmitting modules 13, receiving the processing module 12 can specifically pass through the letter of the output of the 4th signalling channel 4
Number, specifically the LIN buses can be output signals to by the 5th signalling channel 5.
Because LIN networks described in first embodiment of the invention are believed from the processing module 12 and LIN of the electric control part 10 of node
Number sending module 11 can disabled or activation, therefore can realize further reducing the effect of intra-node module consumption.
LIN networks described in the embodiment of the present invention can also further include power module 14 from node：Under open state
State of activation is remained, external power source input is received by power line, be that the LIN signal detection is received and control module
11st, LIN signal transmitting modules 13, processing module 12 are powered；The LIN signal detection is received and control module 11 and processing module
Whether 12 supplied by the power supply of the control power module 14 pairs LIN signal transmitting modules 13 or processing module 12 and realize
Activation disables the LIN signal transmitting modules 13 or processing module 12.
Power module 14 specifically can receive the power input of power line by the 5th power channel Pa, specifically can be respectively
Received to LIN signal detection and control module by the first power channel P1, second source passage P2, the 3rd power channel P3
11st, LIN signal transmitting modules 13, processing module 12 are powered.
The LIN signal detection is received and control module 11 specifically can be by the output signal of the 7th signalling channel 7 to institute
The output for stating power module 14 is controlled.
LIN networks further can also include from node described in the embodiment of the present invention：Detection module 15, detection and feedback letter
Number give the processing module 12；The detection module 15 is directly powered by external power source.
Processing module 12, receives to LIN signal detection and the signal of the output of control module 11 is parsed, according to parsing knot
Fruit judges whether the signal is relevant with this node, and it is sharp to control the detection module 11 according to the analysis result relevant with this node
Living or dormancy.
The present invention defines dormancy：Module is in off position, and the state powered.
The processing module 12 specifically can send control signals to the LIN signal detection by the 6th signalling channel 6
Receive and control module 11；
6th signalling channel 6 specifically can include LIN signal detection receive and control module enable input signal cable,
LIN signal detection is received and control module output Restart Signal line, the transmission data letter of Universal Asynchronous Receive/dispensing device interface
Number line.
Control to disable LIN signal transmitting modules 13 simultaneously and the control command of processing module 12 is：
When LIN signal detection is received and control module output Restart Signal line holding high level, Universal Asynchronous Receive/transmission
In the case of the transmission data signal line of device interface keeps low level, control LIN signal detection is received and control module is enabled
Input signal cable is changed into low level from high level.
The control command for controlling to be independently disabled LIN signal transmitting modules 13 is：
When LIN signal detection is received and control module output Restart Signal line holding high level, Universal Asynchronous Receive/transmission
In the case that the transmission data signal line of device interface keeps high level, control LIN signal detection is received and control module is enabled
Input signal cable is changed into low level from high level.
The control command for controlling individually to activate LIN signal transmitting modules is：
When LIN signal detection is received and control module output Restart Signal line remains high level, control LIN signals are visited
Survey reception and control module enables input signal cable and is changed into high level from low level.
6th signalling channel 6 can further include LIN signal detection and receive and control module input signal cable；
Control disables LIN signal transmitting modules 13 and the control command of processing module 12 simultaneously：
When LIN signal detection is received and control module output Restart Signal line holding high level, Universal Asynchronous Receive/transmission
The transmission data signal line of device interface keeps low level, LIN signal detection to receive and control module input signal cable keeps low
In the case of level, control LIN signal detection is received and control module enables input signal cable and is changed into low level from high level；
The control command of LIN signal transmitting modules is independently disabled can be：
When LIN signal detection is received and control module output Restart Signal line holding high level, Universal Asynchronous Receive/transmission
The transmission data signal line of device interface keeps high level, LIN signal detection to receive and control module input signal cable keeps low
In the case of level, control LIN signal detection is received and control module enables input signal cable and is changed into low level from high level；
Control is independently disabled the control command of processing module 12：
When LIN signal detection receive and control module output Restart Signal line keep high level, LIN signal detection to receive and
In the case that control module input signal cable keeps high level, control LIN signal detection is received and control module enables input letter
Number line is changed into low level from high level；
Control individually activates the control command of LIN signal transmitting modules：
When LIN signal detection is received and control module output Restart Signal line remains high level, control LIN signals are visited
Survey reception and control module enables input signal cable and is changed into high level from low level.
Referring to Fig. 3 b, LIN networks further can also include from node described in the embodiment of the present invention：Drive module 16.
When the LIN networks further include mechanical part from node, the electric control part 10 further includes to drive
Module 16.
The drive module 16 connects the mechanical part, for receiving the signal of the output of the processing module 12, control
The mechanical part, and feed back signal to the processing module 12；The drive module 16 is directly powered by external power source.
Referring to Fig. 3 c, LIN networks further can also include simultaneously from node described in the embodiment of the present invention：Detection module 15
With drive module 16.
When the LIN networks further include mechanical part from node, the electric control part may further include detection
Module 15 and drive module 16.
The drive module 16 connects mechanical part, and it is defeated that detection module 15 and drive module 16 receive the processing module 12
The signal for going out, controls the mechanical part, the status information of mechanical part described in monitor in real time, and feeds back signal to the process
Module 12；The detection module 15 and drive module 16 can directly be powered by external power source by the 4th power line P4；It is described
Detection module 15 and drive module 16 in a dormant state when be still powered；
Processing module 12, receives to LIN signal detection and the signal of the output of control module 11 is parsed, according to parsing knot
Fruit judges whether the signal is relevant with this node, and controls the detection module 15 according to the analysis result relevant with this node,
And/or drive module 16 is activated or dormancy.
The detection module 15 and/or drive module 16 can feed back signal to institute by the 3rd channel (signalling channel) 3
State processing module 12；
3rd signalling channel 3 is based on SPI (Serial Peripheral Interface, Serial Peripheral Interface (SPI)), tool
Body can include chip selection signal line, clock line, Data In-Line, DOL Data Output Line；
The processing module 12 writes corresponding control command on the Data In-Line, makes the detection module 15
And/or drive module 16 is activated or enters resting state.
3rd signalling channel 3 can also be that other communications such as such as 12C (INTER IC BUS, bus between IC) connect
Mouthful.
Processing module 12 described in the embodiment of the present invention is specifically as follows the microcontroller of 16 pins of freescale productions
MC9S08SC4。
LIN signal detection described in the embodiment of the present invention is received and control module 11, LIN signal transmitting modules 13, power supply mould
Block 14 is integrated in an integrated chip, such as the TJA 1028 of NXP productions.
Drive module 16 described in the embodiment of the present invention and detection module 15 can be a drive module, be specifically as follows integrated
The step motor drive module of SPI interface, such as the NCV 70501 of Onsemi productions.
It is pointed out that the chip be given in above-described embodiment is example.
Such as processing module 12, any chip with digital processing capabilities, such as single-chip microcomputer, microprocessor
(microprocessor), microcontroller (microcontroller), ARM, DSP etc. can be suitable for.Also, processing module
12nd, drive module 16 and detection module 15 also not necessarily take respectively a complete integrated chip. according to the present invention from section
Any two or multiple modules of the electric control part 10 of point can be integrated in an integrated chip, or even whole electric control part diversity
In Cheng Yi integrated chip.
In LIN networks, LIN networks described in the embodiment of the present invention have following five kinds of patterns, and the process from node
The LIN networks that module and LIN signal detection are received and the control of control module 11 is located are from node between five kinds of patterns
Mutually conversion；
1st, sleep pattern：The LIN signal detection is received and control module 11 is active, the detection module
15 and/or drive module 16 be still powered in a dormant state；The processing module, LIN signal transmitting modules 13 are in taboo
Use state；
2nd, the first quasi- sleep pattern：The LIN signal detection is received and control module 11, processing module 12 are in activation shape
State, detection module 15 and/or drive module 16 are still powered in a dormant state；The LIN signal transmitting modules 13 are in
Disabled status；
3rd, the second quasi- sleep pattern：The LIN signal detection is received and control module 11, processing module 12, LIN signals are sent out
Module 13 is sent to be active, detection module 15 and/or drive module 16 are still powered in a dormant state；
4th, quasi- mode of operation：The LIN signal detection is received and control module 11, processing module 12, detection module 15 and/
Or drive module 16 is in state of activation；The LIN signal transmitting modules 13 are in disabled status；
5th, complete mode of operation：The LIN signal detection is received and control module 11, processing module 12, detection module 15
And/or drive module 16, LIN signal transmitting modules 13 are in state of activation.
Referring to Fig. 8, the figure is that LIN networks described in the embodiment of the present invention enter complete mode of operation from node from other patterns
Schematic diagram.
In LIN networks, when LIN networks described in the embodiment of the present invention when node needs to enter the complete mode of operation
When, in the case where the processing module 12 is controlled, all modules are activated, and can realize from the sleep pattern, or described first accurate
Sleep pattern, or the second quasi- sleep pattern, or the either mode in the quasi- mode of operation is into the complete Working mould
Formula.
When LIN network nodes described in the embodiment of the present invention are in the sleep pattern, control in the processing module 12
Under, by the activation for controlling correlation module, it is possible to achieve from the sleep pattern, be directly entered the first quasi- sleep pattern, or the
Two quasi- sleep patterns, or quasi- mode of operation, or the either mode completely in mode of operation.
Referring to Fig. 4, the figure is that LIN networks return to sleep pattern from node from other patterns described in the embodiment of the present invention
Schematic diagram.
In LIN networks, LIN networks described in the embodiment of the present invention under arbitrary mode of operation, meet following appointing from node
During one situation, the sleep pattern can be directly entered：
The sleep pattern is entered by after the LIN networks pass through from node power-on self-test；Or as the LIN
Network from node power-on self-test by and after preset duration, the LIN networks enter sleep pattern from node；
When the LIN networks do not receive the signal from the LIN buses, and institute from node in the preset duration
State LIN networks from node need to only maintain minimum operational module to work when, the LIN networks return to the sleep mould from node
Formula；
When the LIN networks receive the LIN buses dormancy instruction from node, and the LIN networks only need dimension from node
When holding the minimum operational module work, the LIN networks return the sleep pattern from node；
When the LIN networks work in the complete mode of operation from node, and complete the dynamic of LIN network host nodes requirement
When making, any work order from the LIN buses is not received in preset duration, the LIN networks are returned from node
The sleep pattern；
When the LIN networks work in the sleep pattern from node, if the LIN signal detection receives and controls mould
Block identifies that the signal produced in the LIN buses is non-wake-up signal, then the LIN networks maintain former sleep mould from node
Formula；
Referring to Fig. 5, the figure is LIN networks described in the embodiment of the present invention from the entrance of the first quasi- sleep pattern of node and returns
Return schematic diagram.
In LIN networks, LIN networks described in the embodiment of the present invention under arbitrary mode of operation, meet following appointing from node
During one situation, the described first quasi- sleep pattern is directly entered：
When the LIN networks work in the sleep pattern from node, if the LIN signal detection receives and controls mould
Block identifies that the signal produced in the LIN buses is bus wake-up signal, then control power module and supply to the processing module
Electricity, the processing module is in running order, and the LIN networks enter the described first quasi- sleep pattern from node；
When the LIN networks work in the first quasi- sleep pattern from node, if LIN buses produce a signal, institute
Signal input is stated to the processing module is inputed to after LIN signal detection reception and control module, if the processing module
Judgement need not be activated or disable other modules, then the LIN networks maintain the first quasi- sleep pattern from node；
When the LIN networks work in the second quasi- sleep pattern from node, if no longer needing to feed back signal to institute
LIN buses are stated, under processing module control, the LIN signal transmitting modules are disabled, and the LIN networks are returned from node
Return to the described first quasi- sleep pattern；
When the LIN networks work in the quasi- mode of operation from node, if the detection module and/or drive module
No longer need to keep state of activation, under processing module control, the detection module and/or drive module enter dormancy shape
State, the LIN networks return to the described first quasi- sleep pattern from node；
When the LIN networks work in the complete mode of operation from node, if no longer needing to feed back signal to described
LIN buses, and the detection module and/or drive module no longer need holding state of activation, in processing module control
Under, the LIN signal transmitting modules are disabled, and the detection module and/or drive module enter resting state, the LIN nets
Network returns to the described first quasi- sleep pattern from node；
Referring to Fig. 6, the figure is LIN networks described in the embodiment of the present invention from the entrance of the second quasi- sleep pattern of node and returns
Return schematic diagram.
In LIN networks, LIN networks described in the embodiment of the present invention under arbitrary mode of operation, meet following appointing from node
During one situation, the described second quasi- sleep pattern is directly entered：
When the LIN networks work in the first quasi- sleep pattern from node, if the LIN buses produce one believing
Number, the signal input gives the processing module to input signal after LIN signal detection reception and control module, if described
Processing module judges only to need to open the LIN signal transmitting modules, and under processing module control, the LIN signals are sent out
Module is sent to be activated, the LIN networks enter the described second quasi- sleep pattern from node；
When the LIN networks work in the second quasi- sleep pattern from node, if the LIN buses produce one believing
Number, the signal by input to the LIN signal detection and receive and control module after input signal to the processing module, if
The processing module judges to activate or disable other modules, then the LIN networks maintain the second quasi- sleep mould from node
Formula；
When the LIN networks work in quasi- mode of operation from node, if the detection module and/or drive module are no longer
Need to keep state of activation, and need to feed back signal to the LIN buses, under processing module control, the detection mould
Block and/or drive module enter resting state, and the LIN signal transmitting modules are activated, and the LIN networks are returned to from node
Second quasi- sleep pattern；
When the LIN networks work in the complete mode of operation from node, if the detection module and/or driving
Module no longer needs to keep state of activation, and under processing module control, the detection module and/or drive module enter institute
Resting state is stated, the LIN networks return to the described second quasi- sleep pattern from node.
Referring to Fig. 7, the figure is that LIN networks described in the embodiment of the present invention show from the entrance of the quasi- mode of operation of node and return
It is intended to.
In LIN networks, LIN networks described in the embodiment of the present invention under arbitrary mode of operation, meet following appointing from node
During one situation, the quasi- mode of operation is directly entered：
When the LIN networks work in the first quasi- sleep pattern from node, the detection module is if desired activated
And/or drive module, under processing module control, the detection module and/or drive module are activated, the LIN nets
Network enters the quasi- mode of operation from node；
When the LIN networks work in the second quasi- sleep pattern from node, the detection module is if desired activated
And/or drive module, and no longer need to feed back signal to the LIN buses, under processing module control, the detection
Module and/or drive module are activated, and the LIN signal transmitting modules are disabled, and the LIN networks enter the standard from node
Mode of operation；
When the LIN networks work in the quasi- mode of operation from node, if the detection module and/or drive module
In continuous firing state and the LIN buses need not be fed back signal to, the LIN networks keep quasi- Working mould from node
Formula；
When the LIN networks work in the complete mode of operation from node, if no longer needing to feed back signal to described
LIN buses, under processing module control, the LIN signal transmitting modules are disabled, return to the quasi- mode of operation.
Referring to Fig. 9, the figure is LIN networks described in the embodiment of the present invention from the sleep pattern of node to the first quasi- sleep pattern
Flow path switch schematic diagram.
The LIN networks work in the sleep pattern from node；
The LIN signal detection is received and control module receives the signal that LIN buses send by the first signalling channel 1；
Judge whether the signal is bus wake-up signal；If otherwise keeping sleep pattern；If the LIN signal detection
Receive and control module sends a command signal to power module by the 7th signalling channel 7.
Power module receives command signal reciprocal, and opens the 3rd power line.
The processing module activation, i.e., in running order, the LIN networks enter the described first quasi- sleep mould from node
Formula.
Referring to Figure 10, the figure is that LIN networks described in the embodiment of the present invention are accurate to second from the first quasi- sleep pattern of node
The schematic diagram of sleep pattern flow path switch one.
The LIN networks work in the first quasi- sleep pattern from node；
The LIN signal detection is received and control module receives the signal that LIN buses send by the first signalling channel 1,
And the processing module is sent a signal to by secondary signal passage 2；
Processing module receives the signal；
Processing module judges whether LIN signal transmitting modules need activation；The first quasi- sleep pattern is kept if not；If place
Reason module passes through the sending signal of the 6th signalling channel 6；
The LIN signal detection is received and control module receives the signal, and sends instruction letter by the 7th signalling channel 7
Number give power module；
The power module receives the command signal, opens second source line；
LIN signal transmitting modules are activated, i.e., in running order, the LIN networks are slept from node into second standard
Sleep mode.
Referring to Figure 11, the figure is that LIN networks described in the embodiment of the present invention are accurate to second from the first quasi- sleep pattern of node
The schematic diagram of sleep pattern flow path switch two.
The LIN networks work in the first quasi- sleep pattern from node；
The LIN signal detection is received and control module receives the signal that LIN buses send by the first signalling channel 1,
And the processing module is sent a signal to by secondary signal passage 2；
Processing module receives the signal；
Processing module judges whether LIN signal transmitting modules need activation；If processing module passes through the 6th signalling channel 6
Sending signal；
The LIN signal detection is received and control module receives the signal, and sends instruction letter by the 8th signalling channel 8
Number；
LIN signal transmitting modules are activated, i.e., in running order, the LIN networks are slept from node into second standard
Sleep mode.
The above, is only presently preferred embodiments of the present invention, and any pro forma restriction is not made to the present invention.Though
So the present invention is disclosed above with preferred embodiment, but is not limited to the present invention.It is any to be familiar with those skilled in the art
Member, under without departing from technical solution of the present invention ambit, all using the methods and techniques content of the disclosure above to the present invention
Technical scheme makes many possible variations and modification, or the Equivalent embodiments for being revised as equivalent variations.Therefore, it is every without departing from
The content of technical solution of the present invention, according to the technical spirit of the present invention to any simple modification made for any of the above embodiments, equivalent
Change and modification, still fall within the range of technical solution of the present invention protection.
Claims (11)
1. a kind of LIN networks are from node, it is characterised in that including electric control part；
The electric control part includes that LIN signal detection is received and control module and LIN signal detection reception and control module
Connected processing module and the LIN signal transmitting modules being connected with the processing module；
The processing module and the LIN signal transmitting modules being capable of disabled or activation；
The LIN signal detection is received and control module remains state of activation under open state, and with wake-up signal
Identification function, the processing module and LIN signal transmitting modules are performed respectively activation, disabling function；The LIN signals are visited
Survey reception and the signal in the LIN buses of detection is sent to the processing module by control module；And to the processing module and
LIN signal transmitting modules are controlled；
The processing module is received according to the LIN signal detection and the analysis result of output signal of control module judges the letter
It is number whether relevant with this node, and according to the analysis result control activation relevant with this node or disable the LIN signals and send
Module and/or processing module itself；
LIN signal transmitting modules, receive the signal of the processing module output, output signals to LIN buses.
2. LIN networks according to claim 1 are from node, it is characterised in that the LIN networks are further included from node
Power module：State of activation is remained under open state, external power source input is received by power line, be the LIN letters
Number detection receive and control module, LIN signal transmitting modules, processing module power；The LIN signal detection receives and controls mould
Whether block and processing module are supplied by the power supply of LIN signal transmitting modules or processing module described in the control electric power source pair of module
Realize activation or disable the LIN signal transmitting modules or processing module.
3. LIN networks according to claim 2 are from node, it is characterised in that the LIN signal detection receives and control mould
Block detection receives the signal in LIN buses in the first signalling channel, and the signal level for meeting LIN agreements is converted to into symbol
The logic level that the processing module is required is closed, is exported to the processing module by secondary signal passage；
The LIN signal detection is received and control module passes through output of the 7th signalling channel output signal to the power module
It is controlled；
The LIN signal detection is received and control module sends mould by the 8th signalling channel output signal to the LIN signals
Block is controlled；
LIN signal transmitting modules, receive signal of the processing module by the output of the 4th signalling channel, logical by the 5th signal
Road outputs signals to the LIN buses.
4. LIN networks according to claim 3 are from node, it is characterised in that the LIN signal detection receives and control mould
Block performs disabling or the order for activating to the LIN signal transmitting modules by the 8th signalling channel output signal.
5. the LIN networks according to any one of claim 1-4 are from node, it is characterised in that
The electric control part is further included：Detection module, detects and feeds back signal to the processing module；The detection module
Directly powered by external power source；
Or, the LIN networks further include mechanical part from node, and the electric control part further includes drive module；
The drive module：Connect the mechanical part, for receiving the signal of the processing module output, control the machinery
Part, and feed back signal to the processing module；The drive module is directly powered by external power source；
Or, the LIN networks further include mechanical part from node, the electric control part further include detection module and
Drive module；
The drive module connects mechanical part, and the detection module and drive module receive the letter of the processing module output
Number, the mechanical part, the status information of mechanical part described in monitor in real time are controlled, and feed back signal to the processing module；
The detection module and drive module are directly powered by external power source；The detection module and drive module in a dormant state when
Still it is powered；
Processing module, receives to LIN signal detection and the signal of control module output is parsed, and being judged according to analysis result should
Whether signal is relevant with this node, and controls the detection module according to the analysis result relevant with this node, and/or drives mould
The activation of block or dormancy.
6. LIN networks according to claim 5 are from node, it is characterised in that in LIN networks, and the LIN networks are from section
Point has following five kinds of patterns, and the LIN that the processing module and LIN signal detection are received and control module control is located
Network is mutually changed from node between five kinds of patterns；
Sleep pattern：The LIN signal detection is received and control module is active, the detection module and/or driving
Module is still powered in a dormant state；The processing module, LIN signal transmitting modules are in disabled status；
First quasi- sleep pattern：The LIN signal detection is received and control module, processing module are active, and detects mould
Block and/or drive module are still powered in a dormant state；The LIN signal transmitting modules are in disabled status；
Second quasi- sleep pattern：The LIN signal detection is received and control module, processing module, LIN signal transmitting modules are in
State of activation, detection module and/or drive module are still powered in a dormant state；
Quasi- mode of operation：The LIN signal detection is received and control module, processing module, detection module and/or drive module are equal
It is active；The LIN signal transmitting modules are in disabled status；
Complete mode of operation：The LIN signal detection is received and control module, processing module, detection module and/or driving mould
Block, LIN signal transmitting modules are in state of activation.
7. LIN networks according to claim 6 are from node, it is characterised in that in LIN networks,
The LIN networks under arbitrary mode of operation, when meeting following either case, are directly entered the sleep mould from node
Formula：
The sleep pattern is entered by after the LIN networks pass through from node power-on self-test；Or when the LIN networks from
Node power-on self-test by and after preset duration, the LIN networks enter sleep pattern from node；
It is when the LIN networks do not receive the signal from the LIN buses from node in the preset duration and described
LIN networks from node need to only maintain minimum operational module to work when, the LIN networks return to the sleep pattern from node；
When the LIN networks receive the LIN buses dormancy instruction from node, and the LIN networks need to only maintain institute from node
When stating minimum operational module work, the LIN networks return the sleep pattern from node；
When the LIN networks work in the complete mode of operation from node, and complete the action of LIN network host nodes requirement
When, any work order from the LIN buses is not received in preset duration, the LIN networks return institute from node
State sleep pattern；
When the LIN networks work in the sleep pattern from node, if the LIN signal detection is received and control module is known
It is non-wake-up signal not go out the signal produced in the LIN buses, then the LIN networks maintain former sleep pattern from node；
The LIN networks under arbitrary mode of operation, when meeting following either case, are directly entered first standard and sleep from node
Sleep mode：
When the LIN networks work in the sleep pattern from node, if the LIN signal detection is received and control module is known
It is bus wake-up signal not go out the signal produced in the LIN buses, then control power module and power to the processing module, institute
State processing module in running order, the LIN networks enter the described first quasi- sleep pattern from node；
When the LIN networks work in the first quasi- sleep pattern from node, if LIN buses produce a signal, the letter
Number input to the LIN signal detection receive and control module after input to the processing module, if the processing module judges
Other modules need not be activated or disable, then the LIN networks maintain the first quasi- sleep pattern from node；
When the LIN networks work in the second quasi- sleep pattern from node, if no longer needing to feed back signal to the LIN
Bus, under processing module control, the LIN signal transmitting modules are disabled, and the LIN networks return to institute from node
State the first quasi- sleep pattern；
When the LIN networks work in the quasi- mode of operation from node, if the detection module and/or drive module are no longer
Need to keep state of activation, under processing module control, the detection module and/or drive module enter resting state,
The LIN networks return to the described first quasi- sleep pattern from node；
When the LIN networks work in the complete mode of operation from node, if no longer needing to feed back signal to the LIN total
Line, and the detection module and/or drive module no longer need holding state of activation, under processing module control, institute
State LIN signal transmitting modules disabled, the detection module and/or drive module enter resting state, and the LIN networks are from section
Point returns to the described first quasi- sleep pattern；
The LIN networks under arbitrary mode of operation, when meeting following either case, are directly entered second standard and sleep from node
Sleep mode：
When the LIN networks work in the first quasi- sleep pattern from node, if the LIN buses produce a signal, institute
Signal input is stated to input signal after LIN signal detection reception and control module to the processing module, if the process
Module judges only to need to open the LIN signal transmitting modules, and under processing module control, the LIN signals send mould
Block is activated, and the LIN networks enter the described second quasi- sleep pattern from node；
When the LIN networks work in the second quasi- sleep pattern from node, if the LIN buses produce a signal, institute
State signal by input to the LIN signal detection and receive and control module after input signal to the processing module, if described
Processing module judges to activate or disable other modules, then the LIN networks maintain the second quasi- sleep pattern from node；
When the LIN networks work in quasi- mode of operation from node, if the detection module and/or drive module no longer need
Keep state of activation, and need to feed back signal to the LIN buses, under processing module control, the detection module and/
Or drive module enters resting state, the LIN signal transmitting modules are activated, and the LIN networks return to second from node
Quasi- sleep pattern；
When the LIN networks work in the complete mode of operation from node, if the detection module and/or drive module are not
Need again to keep state of activation, under processing module control, the detection module and/or drive module enter the dormancy
State, the LIN networks return to the described second quasi- sleep pattern from node；
The LIN networks under arbitrary mode of operation, when meeting following either case, are directly entered the quasi- Working mould from node
Formula：
When the LIN networks work in the first quasi- sleep pattern from node, if desired activate the detection module and/or
Drive module, under processing module control, the detection module and/or drive module are activated, and the LIN networks are from section
Point enters the quasi- mode of operation；
When the LIN networks work in the second quasi- sleep pattern from node, if desired activate the detection module and/or
Drive module, and no longer need to feed back signal to the LIN buses, under processing module control, the detection module
And/or drive module is activated, the LIN signal transmitting modules are disabled, and the LIN networks enter the quasi- work from node
Pattern；
When the LIN networks work in the quasi- mode of operation from node, if the detection module and/or drive module are in
Continuous firing state and the LIN buses need not be fed back signal to, the LIN networks keep quasi- mode of operation from node；
When the LIN networks work in the complete mode of operation from node, if no longer needing to feed back signal to the LIN total
Line, under processing module control, the LIN signal transmitting modules are disabled, return to the quasi- mode of operation.
8. LIN networks according to claim 6 are from node, it is characterised in that in LIN networks, and the LIN networks are when section
When point needs to enter the complete mode of operation, under processing module control, all modules are activated, and realization is slept from described
Sleep mode, or the first quasi- sleep pattern, or the second quasi- sleep pattern, or the either mode in the quasi- mode of operation
Into the complete mode of operation；
When the LIN network nodes are in the sleep pattern, under processing module control, correlation module is activated,
Realize from the sleep pattern, be directly entered the first quasi- sleep pattern, or the second quasi- sleep pattern, or quasi- mode of operation, or it is complete
Either mode in full mode of operation.
9. the LIN networks according to Claims 2 or 3 are from node, it is characterised in that the processing module passes through the 6th signal
Passage sends control signals to the LIN signal detection and receives and control module；
6th signalling channel includes that LIN signal detection is received and control module enables input signal cable, LIN signal detection and connects
Receive and control module output Restart Signal line, the transmission data signal line of Universal Asynchronous Receive/dispensing device interface；
LIN signal transmitting modules are disabled simultaneously and the control command of processing module is：When LIN signal detection is received and control module
Output Restart Signal line keeps the transmission data signal line of high level, Universal Asynchronous Receive/dispensing device interface to keep low level
In the case of, control LIN signal detection is received and control module enables input signal cable and is changed into low level from high level；
The control command that LIN signal transmitting modules are independently disabled is：When letter is restarted in the reception of LIN signal detection and control module output
In the case that number line keeps the transmission data signal line of high level, Universal Asynchronous Receive/dispensing device interface to keep high level, control
LIN signal detection processed is received and control module enables input signal cable and is changed into low level from high level；
Individually the control command of activation LIN signal transmitting modules is：When letter is restarted in the reception of LIN signal detection and control module output
When number line remains high level, control LIN signal detection is received and control module enables input signal cable and is changed into high from low level
Level.
10. LIN networks according to claim 9 are from node, it is characterised in that the 6th signalling channel is further included
LIN signal detection is received and control module input signal cable；
LIN signal transmitting modules are disabled simultaneously and the control command of processing module is：When LIN signal detection is received and control module
Output Restart Signal line keeps high level, the transmission data signal line of Universal Asynchronous Receive/dispensing device interface keeps low level,
In the case of LIN signal detection is received and control module input signal cable keeps low level, control LIN signal detection is received and controlled
Molding block enables input signal cable and is changed into low level from high level；
The control command that LIN signal transmitting modules are independently disabled is：When letter is restarted in the reception of LIN signal detection and control module output
Number line keeps high level, the transmission data signal line of Universal Asynchronous Receive/dispensing device interface keeps high level, LIN signals to visit
In the case of survey is received and control module input signal cable keeps low level, control LIN signal detection is received and control module makes
Energy input signal cable is changed into low level from high level；
The control command that processing module is independently disabled is：When LIN signal detection is received and control module output Restart Signal line guarantor
In the case of holding high level, the reception of LIN signal detection and control module input signal cable holding high level, control LIN signals are visited
Survey reception and control module enables input signal cable and is changed into low level from high level.
11. LIN networks according to claim 5 are from node, it is characterised in that the detection module and/or drive module
The processing module is fed back signal to by the 3rd signalling channel；
3rd signalling channel is defeated based on Serial Peripheral Interface (SPI), including chip selection signal line, clock line, Data In-Line, data
Outlet；
The processing module writes corresponding control command on the Data In-Line, makes the detection module and/or driving
Module is activated or enters resting state.
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| CN103580969B (en) * | 2012-07-19 | 2018-08-31 | 杭州三花研究院有限公司 | A kind of LIN networks are from node control system and method |
| US10169278B2 (en) * | 2013-07-31 | 2019-01-01 | Infineon Technologies Ag | LIN bus module |
| CN104639355B (en) * | 2013-11-14 | 2017-12-01 | 广州汽车集团股份有限公司 | A kind of LIN communication schedulings method to set up |
| CN106502942B (en) * | 2016-12-12 | 2023-12-08 | 广州市诚臻电子科技有限公司 | Twisted pair bus signal photoelectric conversion device and photoelectric isolation system |
| CN110579992B (en) * | 2019-10-18 | 2021-02-02 | 上海怿星电子科技有限公司 | Vehicle-mounted Ethernet awakening/sleeping control system and method |
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| EP1594262A2 (en) * | 2004-05-03 | 2005-11-09 | Delphi Technologies, Inc. | LIN network and slave node |
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