CN104527572A - Automobile remote control key receiving device and method - Google Patents
Automobile remote control key receiving device and method Download PDFInfo
- Publication number
- CN104527572A CN104527572A CN201410841141.6A CN201410841141A CN104527572A CN 104527572 A CN104527572 A CN 104527572A CN 201410841141 A CN201410841141 A CN 201410841141A CN 104527572 A CN104527572 A CN 104527572A
- Authority
- CN
- China
- Prior art keywords
- control key
- automobile remote
- receiving device
- automobile
- signal
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
- B60R25/00—Fittings or systems for preventing or indicating unauthorised use or theft of vehicles
- B60R25/20—Means to switch the anti-theft system on or off
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
- B60R2325/00—Indexing scheme relating to vehicle anti-theft devices
- B60R2325/10—Communication protocols, communication systems of vehicle anti-theft devices
- B60R2325/105—Radio frequency identification data [RFID]
Abstract
The invention relates to an automobile remote control key receiving device and method. The device comprises an RF receiving module, an RF signal processing module and a communication module, wherein the RF receiving module sends a received RF wireless signal of an automobile remote control key to the RF signal processing module, the RF signal processing module verifies the RF wireless signal and then converts the RF wireless signal into a data signal, and the data signal is sent to an automobile body controller of an automobile through the communication module. According to the automobile remote control key receiving device and method, since the remote control key receiving device is independent of an ECU and other electronic devices in an automobile, electromagnetic interference from the other electronic devices is avoided, the remote control key receiving sensitivity is improved, and the remote control key receiving distance is increased.
Description
Technical field
The invention belongs to technical field of automotive electronics, be specifically related to a kind of automobile remote-control key receiving device.
Background technology
The trend of current vehicle electronics is towards the future development of safety and traveling comfort, what bring is to the more performance requriements of automobile thereupon, vehicle body remote control reception function is given independent by the present invention, be arranged on automobile as a device separately, make PCB layout more succinct, decrease the potential interference between components and parts.And the installation site of this individual reception device itself is more flexible, a best set-point can be searched out at vehicle body, substantially increase receiving sensitivity, make radio range can be farther, meet car owner for the farther requirement of remote control distance, the independent of module there has also been very large lifting to safety and reliability simultaneously.
Summary of the invention
In order to overcome the deficiencies in the prior art, the invention provides a kind of automobile remote-control key receiving device, by by independent for the electronicies package such as other ECU in remote-control key receiving device and automobile, avoid the electromagnetic interference of other electronics package, improve remote-control key receiving sensitivity, and receiving range.
Technical scheme of the present invention is: a kind of automobile remote-control key receiving device, comprise RF Receiver Module, radio-frequency signal processing module and communication module, the RF wireless signal receiving automobile remote-control key is sent to radio-frequency signal processing module by described RF Receiver Module, radio-frequency signal processing module converts data-signal to after verifying, is sent to the car body controller of automobile by communication module.This automobile remote-control key receiving device is independent of car body controller, and the communication module that automobile remote-control key receiving device is connected with car body controller adopts LIN bus.The reception of ASK (amplitude modulation), FSK (frequency modulation) signal supported by this automobile remote-control key receiving device.This automobile remote-control key receiving device also comprises memory device, and described memory device is for storing data and automobile remote-control key ID.
A kind of automobile remote-control key method of reseptance, the method comprises the following steps: step one, automobile remote-control key receiving device are in poll pattern, according to the RF radiofrequency signal often opening RF Receiver Module 10ms and close again the pattern automatic regular polling automobile remote-control key of RF Receiver Module 200ms, until receive RF radiofrequency signal to be switched to mode of operation; Step 2, automobile remote-control key receiving device are in mode of operation, and the RF receiving cable of RF Receiver Module receives the RF radiofrequency signal of automobile remote-control key, until receive; The correctness of step 3, radio-frequency signal processing module checking RF radiofrequency signal processes, and the data-signal of process is sent to car body controller by communication module; The reconciliation of setting up defences that step 4, Body Control carry out controlling automobile according to data-signal is anti-, and send a signal to radio-frequency signal processing module after having processed, radio-frequency signal processing module control RF Receiver Module gets back to poll pattern.Described step 3 comprises the following steps: after step one, radio frequency processing module receive RF radiofrequency signal, radio frequency signal is resolved; Step 2, according to resolve after data-signal and automobile remote-control key ID match; If after step 3 successful matching, wake car body controller up, and the data-signal of parsing is sent to car body controller by communication module.When needing new pairing automobile remote-control key, automobile remote-control key receiving device starts mode of learning, and car body controller communicates with automobile remote-control key receiving device, gathers the automobile remote-control key ID the memory device being stored in car body controller that intend typing.When needing new pairing automobile remote-control key, automobile remote-control key receiving device starts mode of learning, and the collection of automobile remote-control key receiving device is intended the automobile remote-control key ID of typing and is stored in the memory device of automobile remote-control key receiving device.The method also comprises sleep pattern, and receiving device stops receiving RF radiofrequency signal completely.When system is in poll pattern or sleep pattern, automobile is in low-power consumption state, waits for waking up of RF radiofrequency signal or car body controller.
The present invention has following good effect: remote-control key receiving device of the present invention and other electronics package are independently, avoid electromagnetic interference to each other, in addition, remote-control key receiving device has multiple-working mode, poll pattern and park mode all in various degree reduce battery power consumption.
Accompanying drawing explanation
Fig. 1 is the system chart of the independent remote-control key receiving device of the specific embodiment of the invention;
Fig. 2 is the LIN BUS interface circuit of the specific embodiment of the invention;
Fig. 3 is the radio-frequency (RF) receiving circuit of the specific embodiment of the invention.
Detailed description of the invention
Contrast accompanying drawing below, by the description to embodiment, the specific embodiment of the present invention is as the effect of the mutual alignment between the shape of involved each component, structure, each several part and annexation, each several part and principle of work, manufacturing process and operation using method etc., be described in further detail, have more complete, accurate and deep understanding to help those skilled in the art to inventive concept of the present invention, technical scheme.
For the requirement of current car load to remote control reception distance, need to gather remote-control key wireless signal, the present invention is independent from traditional E CU by remote control reception function, key radiofrequency signal is received by a receiver, realize the object reducing environment and the interference of other components and parts radio frequency circuit itself, improve receiving sensitivity.And RF Receiving Device is independent, RF receiving chip can be made like this in the placement location variety more of automotive interior, be more conducive to the reception of RF wireless signal.RF Receiving Device of the present invention enters low power sleep mode automatically when not needing work, and wait for waking up of actv. RF radiofrequency signal or LIN signal, concrete scheme implementation is as follows:
Remote-receiver of the present invention, mainly includes RF Receiver Module, signal processing module and LIN communication module.After independent remote-control key receiving device receives actv. RF wireless signal, BCM can be sent to carry out further dissection process data by LIN bus, to realize conciliating anti-operation to setting up defences of car load.LIN bus compares the CAN that orthodox car uses lower cost, and its traffic rate meets application needs completely.This automobile remote-control key receiving device also comprises memory device, and memory device is for storing data and automobile remote-control key ID.In actual use procedure, after radio frequency processing module receives RF radiofrequency signal, radio frequency signal is resolved; Match according to the data-signal after parsing and automobile remote-control key ID; If after successful matching, wake car body controller up, and the data-signal of parsing is sent to car body controller by communication module.When needing new pairing automobile remote-control key, automobile remote-control key receiving device starts mode of learning, and car body controller communicates with automobile remote-control key receiving device, gathers the automobile remote-control key ID the memory device being stored in car body controller that intend typing.If remote-control key receiving device does not have memory device, the collection of automobile remote-control key receiving device is intended the automobile remote-control key ID of typing and is stored in the memory device of automobile remote-control key receiving device.
In remote radio frequency reception, the modulation system of the radiofrequency signal of current remote-control key is mostly ASK (amplitude modulation) or FSK (frequency modulation), frequency is 433.92MHz, the ATA5781 scheme that the reception programme that the present invention uses is Atmel, this scheme is supported the ASK of 433.92MHz or the reception of fsk signal, resolve according to key signaling protocol radio frequency signal simultaneously, corresponding information is issued BCM by LIN bus network, and BCM completes setting up defences or separating anti-and boot unlatching car load.Table one is receiver module performance perameter:
Table one:
Secondly, when this independent remote-receiver does not receive effective RF radiofrequency signal, and LIN bus does not have yet other ECU communicate with, now receiving device can enter sleep or the poll pattern of low-power consumption automatically, reduce self current draw, wait for waking up of RF radiofrequency signal or LIN bus, realize the object improving vehicle body battery degree of utilization.
The mode of operation of receiving device can be divided into sleep pattern, poll pattern, mode of operation and mode of learning four kinds, and several mode of operation device can be automatically switched by current operating conditions, and select optimum working mode, concrete operating mode is:
Sleep pattern: under this pattern, individual reception device stops receiving RF radiofrequency signal completely, and whole device power consumption is now minimum, and this pattern is applicable to sea-freight or produces state for sale, improves the degree of utilization of battery.
Poll pattern: individual reception device meeting automatic regular polling RF radiofrequency signal under this pattern, namely open and receive 10ms, close again and receive 200ms, circulate with this, can wake up to realize RF radio frequency reception, once receive useful signal will be switched to mode of operation to compare the lower current power dissipation of traditional working mode like this.
Mode of operation: under this pattern, individual reception device can often hold RF receiving cable, can not miss any one useful signal, working current is now maximum, after receiving, again gets back to poll pattern.
Mode of learning: under this pattern, BCM is communicated with independent remote-receiver by LIN bus, learns new remote control ID and is stored in the EEPROM relevant position of BCM.
When system is in poll pattern or sleep pattern, automobile is in low-power consumption state, waits for waking up of RF radiofrequency signal or car body controller.
In actual use procedure, the working mode change mode of remote-control key receiving device is as follows: step one, automobile remote-control key receiving device are in poll pattern, according to the RF radiofrequency signal often opening RF Receiver Module 10ms and close again the pattern automatic regular polling automobile remote-control key of RF Receiver Module 200ms, until receive RF radiofrequency signal to be switched to mode of operation; Step 2, automobile remote-control key receiving device are in mode of operation, and the RF receiving cable of RF Receiver Module receives the RF radiofrequency signal of automobile remote-control key, until receive; The correctness of step 3, radio-frequency signal processing module checking RF radiofrequency signal processes, and the data-signal of process is sent to car body controller by communication module; The reconciliation of setting up defences that step 4, Body Control carry out controlling automobile according to data-signal is anti-, and send a signal to radio-frequency signal processing module after having processed, radio-frequency signal processing module control RF Receiver Module gets back to poll pattern.
Above by reference to the accompanying drawings to invention has been exemplary description; obvious specific implementation of the present invention is not subject to the restrictions described above; as long as have employed the improvement of the various unsubstantialities that method of the present invention is conceived and technical scheme is carried out; or design of the present invention and technical scheme directly applied to other occasion, all within protection scope of the present invention without to improve.
Claims (10)
1. an automobile remote-control key receiving device, it is characterized in that: comprise RF Receiver Module, radio-frequency signal processing module and communication module, the RF wireless signal receiving automobile remote-control key is sent to radio-frequency signal processing module by described RF Receiver Module, radio-frequency signal processing module converts data-signal to after verifying, is sent to the car body controller of automobile by communication module.
2. receiving device according to claim 1, is characterized in that: this automobile remote-control key receiving device is independent of car body controller, and the communication module that automobile remote-control key receiving device is connected with car body controller adopts LIN bus.
3. receiving device according to claim 1, is characterized in that: the reception of ASK (amplitude modulation), FSK (frequency modulation) signal supported by this automobile remote-control key receiving device.
4. receiving device according to claim 1, is characterized in that: this automobile remote-control key receiving device also comprises memory device, and described memory device is for storing data and automobile remote-control key ID.
5. a kind of automobile remote-control key method of reseptance according to Claims 1-4 any one, it is characterized in that, the method comprises the following steps:
Step one, automobile remote-control key receiving device are in poll pattern, according to the RF radiofrequency signal often opening RF Receiver Module 10ms and close again the pattern automatic regular polling automobile remote-control key of RF Receiver Module 200ms, until receive RF radiofrequency signal to be switched to mode of operation;
Step 2, automobile remote-control key receiving device are in mode of operation, and the RF receiving cable of RF Receiver Module receives the RF radiofrequency signal of automobile remote-control key, until receive;
The correctness of step 3, radio-frequency signal processing module checking RF radiofrequency signal processes, and the data-signal of process is sent to car body controller by communication module;
The reconciliation of setting up defences that step 4, car body controller carry out controlling automobile according to data-signal is anti-, and send a signal to radio-frequency signal processing module after having processed, radio-frequency signal processing module control RF Receiver Module gets back to poll pattern.
6. method of reseptance according to claim 5, is characterized in that: described step 3 comprises the following steps:
After step one, radio frequency processing module receive RF radiofrequency signal, radio frequency signal is resolved;
Step 2, according to resolve after data-signal and automobile remote-control key ID match;
If after step 3 successful matching, wake car body controller up, and the data-signal of parsing is sent to car body controller by communication module.
7. method of reseptance according to claim 5, it is characterized in that: when needing new pairing automobile remote-control key, automobile remote-control key receiving device starts mode of learning, car body controller communicates with automobile remote-control key receiving device, gathers the automobile remote-control key ID the memory device being stored in car body controller that intend typing.
8. method of reseptance according to claim 5, it is characterized in that: when needing new pairing automobile remote-control key, automobile remote-control key receiving device starts mode of learning, and the collection of automobile remote-control key receiving device is intended the automobile remote-control key ID of typing and is stored in the memory device of automobile remote-control key receiving device.
9. method of reseptance according to claim 5, is characterized in that: the method also comprises sleep pattern, and receiving device stops receiving RF radiofrequency signal completely.
10. method of reseptance according to claim 9, is characterized in that: when system is in poll pattern or sleep pattern, automobile is in low-power consumption state, waits for waking up of RF radiofrequency signal or car body controller.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410841141.6A CN104527572A (en) | 2014-12-30 | 2014-12-30 | Automobile remote control key receiving device and method |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410841141.6A CN104527572A (en) | 2014-12-30 | 2014-12-30 | Automobile remote control key receiving device and method |
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| CN104527572A true CN104527572A (en) | 2015-04-22 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201410841141.6A Pending CN104527572A (en) | 2014-12-30 | 2014-12-30 | Automobile remote control key receiving device and method |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109695379A (en) * | 2017-10-23 | 2019-04-30 | 丰田自动车株式会社 | Key unit and vehicle with key unit |
| CN111540185A (en) * | 2019-11-29 | 2020-08-14 | 国网甘肃省电力公司电力科学研究院 | Low-power consumption monitoring and decoding method for remote control radio frequency signal |
-
2014
- 2014-12-30 CN CN201410841141.6A patent/CN104527572A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109695379A (en) * | 2017-10-23 | 2019-04-30 | 丰田自动车株式会社 | Key unit and vehicle with key unit |
| CN109695379B (en) * | 2017-10-23 | 2021-01-05 | 丰田自动车株式会社 | Key unit and vehicle with key unit |
| CN111540185A (en) * | 2019-11-29 | 2020-08-14 | 国网甘肃省电力公司电力科学研究院 | Low-power consumption monitoring and decoding method for remote control radio frequency signal |
| CN111540185B (en) * | 2019-11-29 | 2024-01-12 | 国网甘肃省电力公司电力科学研究院 | Low-power consumption monitoring and decoding method for remote control radio frequency signals |
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Application publication date: 20150422 |
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