CN103237073B - A kind of vehicle control system based on wireless technology and method thereof - Google Patents
A kind of vehicle control system based on wireless technology and method thereof Download PDFInfo
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Abstract
The invention discloses a kind of vehicle control system based on wireless technology and method thereof, this system includes: network host node and network child node, and this network host node is coordinator, and this network child node includes command unit and controlled cell, wherein, command unit sends control instruction signal；Coordinator receives above-mentioned wireless command signals, and is sent to controlled cell after analyzing and processing；Controlled cell performs corresponding action after receiving command signal, the invention solves vehicle interior wiring in prior art too much, the problem that in limited motor space, wiring is more and more difficult, also solves the problem that in prior art, the reading lamp of heel row, co-driver seat cannot be directly controlled by driver simultaneously.
Description
Technical field
The present invention relates to vehicle control system field, especially a kind of system vehicle interior component being controlled based on wireless communication technology and control method thereof.
Background technology
Raising along with living standards of the people, automobile spreads in the family of Most users at leisure, and automobile industry is also grown constantly, various new automotive engineerings continue to bring out in market, automobile of today is by person-to-person communication electronic installation, recreational facilities, intelligent electric appliances etc. are incorporated into automotive interior, combine with dynamical system, provide the user great convenience, cause the data pole sharp increase of automobile inside conductor, make to connect up in limited motor space more and more difficult, in one superior automobile adopting traditional wiring method, its conductor length is up to 2000m, electrical node reaches 1500, according to statistics, this numeral increased by 1 times every about 10 years, thus the contradiction exacerbated between thick wire harness and the limited free space of automobile.No matter from material cost or work efficiency, traditional wiring method all will not adapt to the development of automobile.In order to solve this situation, therefore radio network technique will receive rational application in automotive networking, and the Automobile Network System based on ZigBee technology can be good at solving this problem.
ZigBee is the radio network technique of a kind of novel short distance, low-power consumption, low data rate, low cost, low complex degree；It takes the whole limited of IEEE802.1.4 strong radio physical layer defined: economize point, the specification that simple, cost is low again；And add logic network, network security and application layer.ZigBee wireless transmission bandwidth, in 20-250KB/s scope, is suitable for sensor data acquisition and controls the transmission of data, and ZigBee is wireless can set up large scale network, and network node capacity reaches 65535, has very powerful networking advantage.
No matter existing automobile is superior automobile or compact-type automobile, in car, the reading lamp of each position controls opening/closing situation by the corresponding switch of its position, thus there are some design defect: when heel row is passenger seated need use reading lamp time, it is only capable of rear passenger to carry out opening/closing, if rear passenger fails to close reading lamp in time after using before leaving vehicle, it is necessary for driver and leaves operator seat, go to heel row that reading lamp is closed, thus making troubles to driver, if not carrying out closing in time also result in the wasting of resources, the member replacing cycle is also greatly shortened simultaneously.
Simultaneously, seat in some superior automobile is generally adopted electrodynamic type control and regulation, even some vehicles are additionally provided with schematic memory function, although facilitating the adjustment of seat, but driver is also still suffered to some problems, as: seat can be modulated optional position to meet oneself demand after copilot station is passenger seated, but after copilot station passenger leaves, driver may according to demand or personal like seat is recovered ideal position, but the seat adjusting switch of copilot station is all located on the right side of seat (namely away from operator seat side), so cause the seat to regulate copilot station, it is necessary for leaving operator seat, co-driver is gone to carry out the adjustment of seat, cumbersome, lose time.
Summary of the invention
It is an object of the invention to provide a kind of vehicle control system based on wireless technology and method thereof, too much to solve vehicle interior wiring in prior art, the problem that in limited motor space, wiring is more and more difficult, also solves the problem that in prior art, the reading lamp of heel row, co-driver seat cannot be directly controlled by driver simultaneously.
For reaching above-mentioned purpose, the present invention provides a kind of vehicle control system based on wireless technology, and this system includes: network host node and network child node, and this network host node is coordinator, and this network child node includes command unit and controlled cell, wherein:
Described command unit is in order to produce control instruction, comprising: key-press module, first microprocessor module, the first wireless communication module, the first power module, this first microprocessor module connects with above-mentioned each module respectively；
Described coordinator is in order to receive above-mentioned control instruction, and is sent to above-mentioned controlled cell setting up wireless networks after processing by analysis, controls each controlled node in wireless network；
After described controlled cell receives above-mentioned instruction, performing corresponding action, comprising: the second microprocessor module and the second wireless communication module being connected respectively with it, second source module, controlled plant, this controlled cell is made up of multiple controlled nodes.
It is preferred that the key-press module on above-mentioned command unit is made up of several buttons, and each button correspondence controls a controlled node.
It is preferred that above-mentioned network adopts ZigBee, wifi, bluetooth or z-wave communication protocol.
It is preferred that above-mentioned first microprocessor module adopts Integral design chip with the first wireless communication module, operating frequency is 5GHz, 2.4GHz, 868MHz or 915MHz, and said chip incorporates radio frequency front end, internal memory and microcontroller.
It is preferred that the second above-mentioned microprocessor module and the second wireless communication module adopt Integral design chip, operating frequency is 5GHz, 2.4GHz, 868MHz or 915MHz, and said chip incorporates radio frequency front end, internal memory and microcontroller.
The vehicle control system based on wireless technology of the present invention, driver can realize the control to vehicle interior component by the command unit being provided with near operator seat, heating etc. such as: the adjustment of seat, opening/closing, the seat of reading lamp, only need depresses button, and have employed wirelessly transmitting data instruction, define ZigBee, wifi, bluetooth or z-wave network, safe and reliable, solve the problem of difficult wiring in limited inner space of vehicle.
The present invention also provides for a kind of control method for vehicle based on wireless technology, comprises the following steps that
Command unit sends control instruction signal；
Coordinator receives above-mentioned wireless command signals, and is sent to controlled cell after analyzing and processing；
Controlled cell performs corresponding action after receiving control instruction signal.
It is preferred that the control method of the present invention specifically also includes: whether a, each network child node real-time judge keep data communication with network host node, if each network child node all with network host node communication abnormality, then enter step b, if communication is normally, return step a；B, preassigned network child node is set to network host node；This network child node setting up wireless networks again, receives the control instruction signal that command unit sends, and is sent to the corresponding action of execution of corresponding controlled cell by analysis afterwards.
Preferably, above-mentioned steps a specifically includes: whether each network child node judges normal with network host node data communication, if communication abnormality, again judge, when judging that number of times reaches threshold value, relatively whether other network child nodes are normal with network host node communication, if other network child nodes and network host node communication abnormality, then obtain network host node and damage；If other network child nodes are normal with network host node communication, then the network child node obtaining communication abnormality is damaged.
It is preferred that above-mentioned control instruction signal includes the control to vehicle heel row reading lamp, the adjustment of copilot station seat or back seat heating.
Beneficial effects of the present invention:
1, efficiently solving the quantity sharp increase of automobile inside conductor, the problem that internal wiring is more and more difficult, network security is reliable simultaneously, less costly.
2, driver can realize the control to vehicle heel row reading lamp, the adjustment of copilot station seat and back seat heating etc. without leaving steering position.
Accompanying drawing explanation
Fig. 1 illustrates the structured flowchart of ZigBee-network in the present invention；
Fig. 2 illustrates the structured flowchart of vehicle control system in the present invention；
Fig. 3 illustrates the flow chart of steps of the control method for vehicle of the present invention；
Fig. 4 illustrates the present invention and again sets up the structured flowchart of new ZigBee-network.
Detailed description of the invention
For the ease of the understanding of those skilled in the art, below in conjunction with embodiment, the present invention is further illustrated with accompanying drawing, and the content that embodiment is mentioned not is limitation of the invention.
Shown in Fig. 2, the vehicle control system based on wireless technology of the present invention, adopt wireless ZigBee-network, this system includes: ZigBee host node and ZigBee child node a1、a2To an, this ZigBee host node is ZigBee coordinator, and this ZigBee child node includes command unit and controlled cell, wherein:
Described command unit is in order to produce control instruction, comprising: key-press module, first microprocessor module, the first wireless communication module, the first power module, this first microprocessor module connects with above-mentioned each module respectively, receive the command signal that key-press module sends, and control the first wireless communication module command signal is sent to ZigBee coordinator, above-mentioned key-press module is made up of several buttons, and each button correspondence controls a controlled node, above-mentioned button adopts mechanical key or touch-controlled key；More preferably, above-mentioned first microprocessor module adopts Integral design chip with the first wireless communication module, and operating frequency is 5GHz, 2.4GHz, 868MHz or 915MHz, and said chip incorporates radio frequency front end, internal memory and microcontroller；
Described ZigBee coordinator is in order to receive above-mentioned control instruction, and obtain, after processing by analysis, the controlled cell that this control instruction is corresponding, concurrently serve the controlled cell stating control instruction to correspondence, and set up ZigBee-network highly sensitive, that capacity of resisting disturbance is strong, integrated level is high, receive the data command that in ZigBee-network, each command unit sends, and control corresponding controlled cell；
After described controlled cell receives above-mentioned control instruction, perform corresponding action, comprising: the second microprocessor module and the second wireless communication module of being connected respectively with it, second source module, controlled plant, this the second microprocessor module analysis receives control instruction, and control to perform corresponding action, this controlled cell is made up of multiple controlled nodes, more preferably, the second above-mentioned microprocessor module and the second wireless communication module adopt Integral design chip, operating frequency is 5GHz, 2.4GHz, 868MHz or 915MHz, said chip incorporates radio frequency front end, internal memory and microcontroller.
The following vehicle control system based on wireless technology for the present invention is applied to control vehicle heel row reading lamp, in example, to specifically include:
Push-button unit (command unit), specifically include: a plurality of buttons, it is preferably 4 or 5 buttons, consider in existing vehicle that mechanical key is excessively various and take space limited in car, in the present embodiment, button selects touch, it is integrated in car running computer, produce one after user's touch controlled key and trigger signal, after first microprocessor module receives above-mentioned triggering signal, this triggering signal is analyzed, determine the button sending this triggering signal, and produce a control instruction, then control the first wireless communication module and control instruction is sent to ZigBee coordinator, the two is by ZigBee communication agreement, first supply module selects the voltage that vehicle interior storage battery provides that above-mentioned each assembly is powered；
ZigBee coordinator is mainly made up of processor module, radio receiving transmitting module and power module, in order to receive the control instruction that above-mentioned push-button unit sends, it is decoded analyzing, and judge the reading lamp that this control instruction correspondence controls, set up the ZigBee-network in car, send control instruction to corresponding reading lamp, this ZigBee coordinator can work independently and is located in car and also with the communication connection realization of CAN master controller and the networking of CAN network, can realize the controlled in wireless to vehicle other system after networking with CAN network；
Reading lamp unit receives, by ZigBee-network, the reading lamp open close control instruction that above-mentioned ZigBee coordinator sends, it is mainly made up of the second microprocessor module and the second wireless communication module being connected respectively with it, second source module, reading lamp, the control instruction that this second microprocessor module Decoding Analysis is above-mentioned, obtain the reading lamp that this control instruction correspondence controls, and controlling the opening/closing of reading lamp, described second source module is in order to be powered the second microprocessor module and the second wireless communication module.
In the above embodiments, driver can realize the open close control to heel row reading lamp by the touch-sensitive display screen being provided with near steering position, it is not necessary to leaves operator seat.
The following vehicle control system based on wireless technology for the present invention is applied to control vehicle auxiliary driver seat, in example, to specifically include:
Push-button unit specifically includes: a plurality of buttons, be preferably 8 buttons (include seat front/rear/up/down regulates, the front/rear adjustment of backrest, the front/rear adjustment of lumbar supports), consider in existing vehicle that mechanical key is excessively various and take space limited in car, in the present embodiment, button selects touch, it is integrated in car running computer, produce one after user's touch controlled key and trigger signal, after first microprocessor module receives above-mentioned triggering signal, this triggering signal is analyzed, determine the button sending this triggering signal, and produce a control instruction, then control the first wireless communication module and control instruction is sent to ZigBee coordinator, the two is by ZigBee communication agreement, first supply module selects the voltage that vehicle accumulator provides that above-mentioned each assembly is powered；
ZigBee coordinator is mainly made up of processor module, radio receiving transmitting module and power module, in order to receive the control instruction that above-mentioned push-button unit sends, it is decoded analyzing, and judge the seat position that this control instruction correspondence controls, set up the ZigBee-network in car, send control instruction to corresponding seat position, this ZigBee coordinator can work independently and is located in car and also with the communication connection realization of CAN master controller and the networking of CAN network, can realize the controlled in wireless to vehicle other system after networking with CAN network；
Assistant driver seat unit receives, by ZigBee-network, the seat regulating control command that above-mentioned ZigBee coordinator sends, it is mainly by the second microprocessor module and the second wireless communication module of being connected respectively with it, second source module, (this automatic seat adopts electrodynamic type to regulate to automatic seat, inside it is provided with drive motor, sensor, electronic controller ECU etc.) constitute, the control instruction that this second microprocessor module Decoding Analysis is above-mentioned, and send to the electronic controller ECU being attached thereto, controlling drive motor rotation drives seat to regulate, described second source module is in order to be powered the second microprocessor module and the second wireless communication module, employing vehicle accumulator is powered.
Only with ZigBee-network for representative in above-described embodiment, it is not limited to other wireless communication technologys, technical field personnel be readily appreciated that.
The control method for vehicle based on wireless technology of the present invention, comprises the following steps that
Step 101: command unit sends control instruction signal, it is embodied in: driver sends triggering signal by touch controlled key, a control instruction signal is produced after first microprocessor module analysis processes, control instruction signal herein is the heating etc. of opening/closing, the adjustment of assistant driver seat of reading lamp, back seat, and controls the first wireless communication module, with ZigBee communication agreement, control instruction signal is sent to ZigBee coordinator；
Step 102:ZigBee coordinator receives above-mentioned wireless command signals, and after analyzing and processing, it is sent to controlled cell, it is embodied in: ZigBee coordinator receives above-mentioned control instruction signal, and analyse and compare, judge the ZigBee child node (i.e. controlled cell) that this control instruction signal correspondence controls, and produce to control the command signal of this ZigBee child node, radio receiving transmitting module it is sent to ZigBee child node by ZigBee-network；
Step 103: controlled cell (above-mentioned ZigBee child node) performs corresponding action after receiving command signal, it is embodied in: the second wireless communication module being provided with in above-mentioned ZigBee child node receives the command signal that ZigBee coordinator sends, after the second microprocessor module analyzing and processing, control corresponding instruction action, control the heating etc. of opening/closing, the adjustment of assistant driver seat of reading lamp, back seat.
More preferably, with reference to, shown in Fig. 4, time initial, each ZigBee child node and ZigBee host node (ZigBee coordinator) being carried out networking setting, and selects one of them ZigBee child node a2For alternative ZigBee host node (alternative ZigBee coordinator), during ZigBee host node normal operation, this alternative ZigBee host node is in a dormant state, this alternative ZigBee host node ZigBee child node that to be preferably in ZigBee-network signal intensity the strongest, and other ZigBee child node has ZigBee coordinator function too, it is used equally to alternative ZigBee host node.
Additionally, with continued reference to shown in Fig. 4, the control method of the present invention specifically also includes:
A: whether each ZigBee child node real-time judge keeps data communication normal with ZigBee host node, if each ZigBee child node all with ZigBee host node communication abnormality, then entrance step b；If communication is normal, then return step a；
B: preassigned ZigBee child node a2(alternative coordinator) activates coordinator function in a dormant state, and is set to ZigBee host node；This ZigBee child node a2Again set up ZigBee-network, receive the control instruction signal that other ZigBee child nodes (command unit) send, and be sent to the corresponding action of execution of corresponding controlled cell by analysis afterwards.
Preferably, above-mentioned steps a specifically includes: whether each ZigBee child node judges normal with ZigBee host node data communication, if communication abnormality, again judge, when judging that number of times reaches threshold value, relatively whether other ZigBee child nodes are normal with ZigBee host node communication, if other ZigBee child nodes and ZigBee host node communication abnormality, then obtain ZigBee host node and damage；If other ZigBee child nodes are normal with ZigBee host node communication, then the ZigBee child node obtaining communication abnormality is damaged.
In the example of vehicle application, whether each push-button unit in car, assistant driver seat unit, the equal real-time judge of reading lamp unit be normal with ZigBee coordinator communication, time initial, selected reading lamp unit is alternative ZigBee coordinator, assistant driver seat unit judge whether normal with ZigBee coordinator communication, if judging abnormal, then again judge；If repeatedly judging after all extremely, then whether normal with ZigBee coordinator communication analyze reading lamp unit, if communication abnormality, then its coordinator function of reading lamp unit activating, as new ZigBee coordinator, again set up ZigBee-network；If communication is normal, then obtains assistant driver seat unit and damage, maintain original ZigBee-network.Accordingly even when the ZigBee coordinator in original ZigBee-network is impaired, also can continue to keep the overall operation of ZigBee-network, keep the stability of network.
The concrete application approach of the present invention is a lot; the above is only the preferred embodiment of the present invention; also can be selected for other wireless communication protocol; as: the communication protocols such as wifi, bluetooth or z-wave; it should be pointed out that, for those skilled in the art, under the premise without departing from the principles of the invention; can also making some improvement, these improvement also should be regarded as protection scope of the present invention.
Claims (7)
1. based on a control method for the vehicle control system of wireless technology, this system includes: network host node and network child node, it is characterised in that this network host node is coordinator, and this network child node includes command unit and controlled cell, wherein:
Described command unit is in order to produce control instruction, comprising: key-press module, first microprocessor module, the first wireless communication module, the first power module, this first microprocessor module connects with above-mentioned each module respectively；Described coordinator is in order to receive above-mentioned control instruction, and is sent to above-mentioned controlled cell setting up wireless networks after processing by analysis, controls each controlled node in wireless network；After described controlled cell receives above-mentioned control instruction, performing corresponding action, comprising: the second microprocessor module and the second wireless communication module being connected respectively with it, second source module, controlled plant, this controlled cell is made up of multiple controlled nodes；
Comprise the following steps that
Command unit sends control instruction signal；
Coordinator receives above-mentioned control instruction signal, and is sent to controlled cell after analyzing and processing；
Controlled cell performs corresponding action after receiving command signal；
Described control method specifically also includes: whether a, each network child node real-time judge keep data communication with network host node, if each network child node all with network host node communication abnormality, then enter step b, if communication is normally, return step a；B, preassigned network child node is set to network host node；This network child node setting up wireless networks again, receives the control instruction signal that command unit sends, and is sent to the corresponding action of execution of corresponding controlled cell by analysis afterwards；
Described step a specifically includes: whether each network child node judges normal with network host node data communication, if communication abnormality, again judge, when judging that number of times reaches threshold value, relatively whether other network child nodes are normal with network host node communication, if other network child nodes and network host node communication abnormality, then obtain network host node and damage；If other network child nodes are normal with network host node communication, then the network child node obtaining communication abnormality is damaged.
2. the control method of the vehicle control system based on wireless technology according to claim 1, it is characterised in that the above-mentioned key-press module on command unit is made up of several buttons, and each button correspondence one controlled node of control.
3. the control method of the vehicle control system based on wireless technology according to claim 1, it is characterised in that above-mentioned wireless network adopts ZigBee, wifi, bluetooth or z-wave communication protocol.
4. the control method of the vehicle control system based on wireless technology according to claim 1, it is characterized in that, above-mentioned first microprocessor module adopts Integral design chip with the first wireless communication module, operating frequency is 5GHz, 2.4GHz, 868MHz or 915MHz, and said chip incorporates radio frequency front end, internal memory and microcontroller.
5. the control method of the vehicle control system based on wireless technology according to claim 1, it is characterized in that, the second above-mentioned microprocessor module and the second wireless communication module adopt Integral design chip, operating frequency is 5GHz, 2.4GHz, 868MHz or 915MHz, and said chip incorporates radio frequency front end, internal memory and microcontroller.
6. the control method of the vehicle control system based on wireless technology according to claim 1, it is characterised in that above-mentioned wireless network adopts ZigBee, wifi, bluetooth or z-wave communication protocol.
7. the control method of the vehicle control system based on wireless technology according to claim 1, it is characterised in that above-mentioned control instruction signal includes the control to vehicle heel row reading lamp, the adjustment of copilot station seat or back seat heating.
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| CN105391806B (en) * | 2015-12-21 | 2019-03-08 | 联想(北京)有限公司 | A kind of equipment long-range control method and system |
| CN105578519B (en) * | 2015-12-21 | 2021-07-16 | 联想(北京)有限公司 | Zigbee node upgrading method and control server |
| CN111147338B (en) * | 2019-12-19 | 2021-11-05 | 上海大学 | Interface design method from vehicle-mounted wired network to wireless network |
| CN113556707A (en) * | 2021-07-30 | 2021-10-26 | 上海大学 | Vehicle-mounted intelligent wireless network reverse control system |
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