Vehicle body information changing automatic informing device and methodTechnical field
The present invention relates to data processing field, relate in particular to vehicle body information changing automatic informing device and method.
Background technology
Increasing along with automobile, the maintenance of automobile, daily service work are frequent gradually, sometimes even carry out safety air bag integral replacing, if safety air bag is changed, now safety air bag ID changes, and other ECU are due to the ID that does not know that safety air bag is new, therefore cannot communicate by letter with safety airbag ECU.
Summary of the invention
In order to solve the problems of the prior art, the invention provides a kind of vehicle body information changing automatic informing device.
The invention provides a kind of automatic informing device of vehicle body information changing, this automatic informing device is arranged in CAN bus, and the ECU of some equipment is also installed in described CAN bus, and described automatic informing device is monitored some equipment; When a certain equipment replacement, automatic informing device obtains modification information, and automatic informing device sends modification information to the ECU of other equipment.
As a further improvement on the present invention, described equipment is safety air bag.
As a further improvement on the present invention, described equipment is change speed gear box.
As a further improvement on the present invention, described equipment is driving engine.
As a further improvement on the present invention, when a certain equipment replacement, automatic informing device obtains the more ID of exchange device, and automatic informing device sends the ID of exchange device more to the ECU of other equipment.
As a further improvement on the present invention, this automatic informing device comprises monitors module, acquisition module, sending module, and described monitoring module is used for monitoring some equipment in CAN bus, and described acquisition module, for when a certain equipment replacement, obtains modification information; Described sending module is for sending modification information to the ECU of other equipment.
The present invention also provides a kind of method for automatically notifying of vehicle body information changing, this automatic informing device is monitored some equipment, when a certain equipment replacement, automatic informing device obtains modification information, and automatic informing device sends modification information to the ECU of other equipment.
As a further improvement on the present invention, this automatic informing device comprises monitors module, acquisition module, sending module, by monitoring module, monitor some equipment in CAN bus, when a certain equipment replacement, by acquisition module, obtain modification information, by sending module, modification information is sent to the ECU of other equipment.
The invention has the beneficial effects as follows: when carrying out equipment replacement, because automatic informing device reads new device id, and notify other ECU by this new device id, thereby realize communicating by letter of new equipment and other ECU.
Accompanying drawing explanation
Fig. 1 is functional block diagram of the present invention.
The specific embodiment
As shown in Figure 1, the invention discloses a kind of automatic informing device 1 of vehicle body information changing, this automatic informing device 1 is arranged in CAN bus, and the ECU of some equipment is also installed in described CAN bus, and described automatic informing device 1 is monitored some equipment; When a certain equipment replacement, automatic informing device 1 obtains modification information, and automatic informing device 1 sends modification information to the ECU of other equipment.
Described equipment comprises safety air bag, change speed gear box, driving engine.
When a certain equipment replacement, automatic informing device 1 obtains the more ID of exchange device, and automatic informing device 1 sends the ID of exchange device more to the ECU of other equipment.
This automatic informing device 1 comprises monitors module, acquisition module, sending module, and described monitoring module is used for monitoring some equipment in CAN bus, and described acquisition module, for when a certain equipment replacement, obtains modification information; Described sending module is for sending modification information to the ECU of other equipment.
The invention also discloses a kind of method for automatically notifying of vehicle body information changing, this automatic informing device 1 is monitored some equipment, when a certain equipment replacement, automatic informing device obtains modification information, and automatic informing device sends modification information to the ECU of other equipment.
This automatic informing device 1 comprises monitors module, acquisition module, sending module, by monitoring module, monitor some equipment in CAN bus, when a certain equipment replacement, by acquisition module, obtain modification information, by sending module, modification information is sent to the ECU of other equipment.
ECU(Electronic Control Unit) electronic control unit, claims again " car running computer ", " vehicle-mounted computer " etc.
For example, equipment is safety air bag, while carrying out safety air bag integral replacing, just needs automatic informing device to read new safety air bag ID, and broadcasts in bus, by other ECU in this message informing bus, prevents that other ECU from cannot communicate by letter with safety airbag ECU.
For example, equipment is change speed gear box, while carrying out change speed gear box integral replacing, just needs automatic informing device to read new change speed gear box ID, and broadcasts in bus, by other ECU in this message informing bus, prevents that other ECU from cannot communicate by letter with change speed gear box ECU.
When carrying out equipment replacement, because automatic informing device reads new device id, and notify other ECU by this new device id, thereby realize communicating by letter of new equipment and other ECU.
Above content is in conjunction with concrete preferred implementation further description made for the present invention, can not assert that specific embodiment of the invention is confined to these explanations.For general technical staff of the technical field of the invention, without departing from the inventive concept of the premise, can also make some simple deduction or replace, all should be considered as belonging to protection scope of the present invention.